Page 1 Toshiba Personal Computer Satellite L20 Series Maintenance Manual TOSHIBA CORPORATION File Number 960-Q01...
Page 2 The information presented in this manual has been reviewed and validated for accuracy. The included set of instructions and descriptions are accurate for the Satellite L20 Series at the time of this manual's production. However, succeeding computers and manuals are subject to change without notice.
Page 3 NOTE: “Note” contains general information that relates to your safe maintenance service. Improper repair of the computer may result in safety hazards. Toshiba requires service technicians and authorized dealers or service providers to ensure the following safety precautions are adhered to strictly.
Page 4 Chapter-0 The manual is divided into the following parts: Chapter 1 Hardware Overview describes the Satellite L20 system unit and each FRU. Chapter 2 Troubleshooting Procedures explains how to diagnose and resolve FRU problems. Chapter 3 Test and Diagnostics describes how to perform test and diagnostic operations for maintenance service.
Page 5 Chapter-0 Conventions This manual uses the following formats to describe, identify, and highlight terms and operating procedures. Acronyms On the first appearance and whenever necessary for clarification acronyms are enclosed in parentheses following their definition. For example: Read Only Memory (ROM) Keys Keys are used in the text to describe many operations.
Page 6: Table Of Contents
Chapter-0 Table of Contents Chapter 1 Hardware Overview Features ..........................1 System Block Diagram ....................6 2.5-inch Hard Disk Drive.....................11 Optical Drive........................15 1.4.1 DVD-ROM & CD-R/RW Drive.............15 1.4.2 DVD Super Multi Drive.................20 Keyboard........................26 TFT Color Display.......................27 1.6.1 LCD Module ..................27 1.6.2 FL Inverter Board...................29 Power Supply .......................30 Batteries ........................32 1.8.1...
Page 7 Chapter-0 Procedure 1 Message Check ............... 48 Procedure 2 Debugging Port Check............50 Procedure 3 Diagnostic Test Program Execution Check ......56 Procedure 4 Replacement Check ..............56 USB FDD Troubleshooting ..................57 Procedure 1 FDD Head Cleaning Check ............ 57 Procedure 2 Diagnostic Test Program Execution Check ......
Page 8 Chapter-0 Display Troubleshooting....................70 Procedure 1 External Monitor Check............70 Procedure 2 Diagnostic Test Program Execution Check ......70 Procedure 3 Connector and Cable Check ............71 Procedure 4 Replacement Check ..............72 2.10 Optical Disk Drive Troubleshooting................73 Procedure 1 Diagnostic Test Program Execution Check ......73 Procedure 2 Connector Check and Replacement Check......73 2.11...
Page 9 Chapter-0 Hard Disk Test ......................115 3.10 Real Time Clock Test ....................118 3.11 Cache Memory Test....................120 3.12 High Resolution Display Test................... 122 3.13 Multimedia Test ......................128 3.14 MEMORY2 Test....................... 129 3.15 Error Codes and Error Status Names ................ 131 3.16 Running Test......................
Page 10 Chapter-0 Chapter 4 Replacement Procedures Overview........................144 Safety Precautions ....................145 Before You Begin ....................146 Disassembly Procedure..................147 Assembly Procedure ....................148 Tools and Equipment ...................148 Screw Tightening Torque ..................149 Grip Color ......................149 Screw Notation ....................150 Battery pack .......................151 PC card........................154 HDD...........................156 Wireless LAN card ....................160 Memory module......................162 Keyboard........................165 LED Board .........................169...
Page 11 Chapter-0 Appendices Appendix A Handling the LCD Module ................A-1 Appendix B Board Layout ....................B-1 Appendix C Pin Assignments.................... C-1 Appendix D Keyboard Scan/Character Codes ..............D-1 Appendix E Key Layout.....................E-1 Appendix F Wiring Diagrams.................... F-1 Appendix G BIOS Rewrite Procedures ................G-1 Appendix H EC/KBC Rewrite Procedures................
Page 12 Chapter-0 Satellite L20 Maintenance Manual (960-Q01)
Page 13: Chapter 1 Hardware Overview
Chapter 1 Hardware Overview Satellite L20 Maintenance Manual(960-Q01)
Page 14 Hardware Overview 1-ii Satellite L20 Maintenance Manual(960-Q01)
Page 15 Chapter 1 Contents Features ..........................1 System Block Diagram ....................6 2.5-inch Hard Disk Drive.....................11 Optical Drive........................15 1.4.1 DVD-ROM & CD-R/RW Drive ............15 1.4.2 DVD Super Multi Drive.................20 Keyboard........................26 TFT Color Display.......................27 1.6.1 LCD Module ..................27 1.6.2 FL Inverter Board...................29 Power Supply .......................30 Batteries ........................32 1.8.1 Main Battery...................32...
Page 16 Figures Figure 1-1 Front of the computer and the system units configuration ........5 Figure 1-2 System block diagram..................6 Figure 1-3 2.5-inch HDD....................11 Figure 1-4 DVD-ROM & CD-R/RW drive ...............15 Figure 1-5 DVD Super Muti drive..................20 Figure 1-6 Keyboard......................26 Figure 1-7 LCD module.....................27 Tables Table 1-1...
Page 17: Features
Chapter 1 Hardware Overview Features Features ® The Satellite L20 (ATI Platform ) series are 2 spindle PCs running a Intel ® Celeron -M processor. The features are listed below. θ Microprocessor Microprocessor that is used will be different of the model. it supports Celeron-M as follows ®...
Page 18 Chatper 1 Hardware Overview USB FDD supports 720KB and 1.44MB. Satellite L20 Maintenance Manual (960-Q01)
Page 19 Chapter 1 Hardware Overview θ Display Built-in 15.0-inch, XGA (1024 x 768 dots), 262,144 colors, amorphous silicon TFT color display. Supported via a RGB connector. TV-out S-VIDEO OUT port supported. θ Keyboard An-easy-to-use 84(US)/85(Euro)-key keyboard provides a numeric keypad overlay for fast numeric data entry .
Page 20 Chatper 1 Hardware Overview θ Optical devices A DVD-ROM & CD-R/RW drive or DVD Super Multi drive is equipped. θ Battery The RTC battery is equipped inside the computer. The main battery is a detachable lithium ion battery (4,300mAh:Li-Ion, 8cell). θ...
Page 21: Figure 1-1 Front Of The Computer And The System Units Configuration
Chapter 1 Hardware Overview Figure 1-1 (ATI Platform ))Front of the computer and the system units configuration Satellite L20 Maintenance Manual(960-Q01)
Page 22: System Block Diagram
Chatper 1 Hardware Overview System Block Diagram Figure 1-2 a/b shows the system block diagram. Figure 1-2 System block diagram for ATI 410MB Platform Satellite L20 Maintenance Manual (960-Q01)
Page 23 Chapter 1 Hardware Overview The PC contains the following components. θ CPU θ it supports Celeron-M CPU as follows ® ® Intel Celeron 350 (1.30GHz) 360 (1.40GHz) 370 (1.50GHz) 380 (1.6GHz) L1 cache : 64KB (32KB + 32KB) L2 cache : 1MB FSB : 400MHz Core voltage : 1.26V θ...
Page 24 Chatper 1 Hardware Overview • South Bridge − ATI SB400 for Celeron-M Platform − PCI slot − IDE controller − SATA controller − DMA controller − USB host interface − USB 2.0 host controller − Interrupt controller − SM Bus interface −...
Page 25 Chapter 1 Hardware Overview θ VGA controller • Intel VGA − VRAM 32MB/64MB − LVDS − Or ATI − VRAM 32MB/64MB/128MB − LVDS θ Other main system chips • Clock Generator (ICS made ICS ) for ATI Platform • EC/KBC (NS97551 x 1) •...
Page 26 Chatper 1 Hardware Overview θ MODEM (Conexant 20493-21x 1) Supported by on board Modem + DAA daughter card. Data and FAX transmission is available. Supports ITU-TV.90. The transfer speed of data receiving is 56kbps, of data sending is 33.6kbps and of FAX is 14.4kbps.
Page 27: Inch Hard Disk Drive
A compact, high-capacity HDD with a height of 9.5mm. Contains a 2.5-inch magnetic disk and magnetic heads. Figure 1-3 shows a view of the 2.5-inch HDD and Tables 1-1 and 1-2 list the specifications. Figure 1-3 2.5-inch HDD Table 1-1 2.5-inch HDD dimensions Toshiba 40G 4200rpm PLUTO MK4025GAS Standard value Parameter Fujitsu Fujitsu...
Page 28 Chatper 1 Hardware Overview Toshiba Toshiba Toshiba Toshiba MK1031GAS MK8025GAS MK6025GAS MK4025GAS 69.85 Width (mm) Outline Height (mm) dimensions 100.0 Depth (mm) 99 (max.) 95(max) Weight (g) Standard value Parameter Toshiba Toshiba Toshiba Toshiba MK1032GAX MK8026GAX MK6026GAX MK4026GAX 70.0 Width (mm)
Page 29: Table 1-2 2.5-Inch Hdd Specifications
Chapter 1 Hardware Overview Table 1-2 2.5-inch HDD Specifications Specification Fujitsu Fujitsu Fujitsu Fujitsu Parameter MHV2100AT MHV2080AT MHV2060AT MHV2040AT Storage size (formatted) 100GB 80GB 60GB 40GB Speed (RPM) 4,200 Data transfer speed (Mbits/s) Interface transfer rate 100 (Ultra DMA Mode) (MB/s) Average random seek time 12(typ.)
Page 30 Chatper 1 Hardware Overview Specification Toshiba Toshiba Toshiba Toshiba Parameter MK1031GAS MK8025GAS MK6025GAS MK4025GAS Storage size (formatted) 100GB 80GB 60GB 40GB Speed (RPM) 4,200 Data transfer speed 170-373 175-342 202-308 175-342 (Mbits/s) Interface transfer rate 100 (Ultra DMA Mode) (MB/s)
Page 31: Optical Drive
Chapter 1 Hardware Overview Optical Drive 1.4.1 DVD-ROM & CD-R/RW Drive The DVD-ROM & CD-R/RW drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15- inch) CD/DVD-ROM and CD-R/RW. It is a high-performance drive that reads DVD at maximum 8-speed and CD at maximum 24-speed. The DVD-ROM &...
Page 32: Table 1-4 Dvd-Rom & Cd-R/Rw Drive Specifications
Chatper 1 Hardware Overview Table 1-4 DVD-ROM & CD-R/RW drive specifications (1/3) Drive Specification Parameter MATSUSHITA (UJDA770TT-A) DVD-ROM MAX 8X CAV (MAX 10800 kB/s) Read (KB/s) CD-ROM MAX 24X CAV (MAX 3600 kB/s) CD-R 4X , 8X (CLV), 16XZCLV, MAX. 24X(CAV) CD-RW 4X (CLV) Data transfer...
Page 33 Chapter 1 Hardware Overview Table 1-4 DVD-ROM & CD-R/RW drive specifications (2/3) Drive Specification Parameter HLDS (GCC-4244N.ATAKN0) DVD-ROM Single Layer3.3x -8x (CAV):Approx. 4,710 r/min Dual Layer3.3x -8x (CAV): Approx. 5,180 r/min DVD-Video 1.7x -4x (CAV): Approx. 2,600r/min DVD-R 3.95GB1.7x -4x (CAV): Approx. 2,600 r/min 4.7GB1.7x -4x (CAV): Approx.
Page 34 Chatper 1 Hardware Overview CD-ROM 110ms (typ.) Access time (ms) (Random) DVD-ROM 120ms (typ.) Buffer memory CD-ROM Mode1&2S CD-ROM XA Modo2 (Form1&2) CD-DA, CD-I, CD-Extra/CD-Plus, Video-CD DVD-ROM Supported disk DVD Video format DVD-R (General, Authoring) DVD-RW (Single/Multi-boarder, Packet) DVD-RAM DVD+R/RW Satellite L20 Maintenance Manual (960-Q01)
Page 35 Chapter 1 Hardware Overview Table 1-4 DVD-ROM & CD-R/RW drive specifications (3/3) Drive Specification Parameter TSST (TS-L462C/TOHJ,I.) CD-ROM Max. 24X (3,600 KB/sec) CAV 24X CD-RW Max. 24X (3,600 KB/sec) CAV 24X DVD-Single Max 8X (10,800 KB/sec) Read (KB/s) DVD-Dual Max 6 (10,800 KB/sec) CD-R Max.
Page 36: Dvd Super Multi Drive
Chatper 1 Hardware Overview 1.4.2 DVD Super Multi Drive The DVD Super Multi drive accommodates either 12 cm (4.72-inch) or 8 cm (3.15-inch) CD/DVD-ROM, CD-R/RW, DVD±R/±RW and DVD-RAM. It is a high-performance drive that reads DVD-ROM at maximum 8-speed and CD at maximum 24-speed. Write speed of DVD±R/±RW and DVD-RAM is different depending on the drive.
Page 37: Table 1-6 Dvd Super Multi Drive Specifications
Chapter 1 Hardware Overview Table 1-6 DVD Super Multi drive specifications (1/4) Drive Specification Parameter MATSUSHITA (UJ-841BTQ-A) DVD-ROM MAX 8X CAV (MAX 10800 kB/s) CD-ROM Read(KB/s) MAX 24X CAV (MAX 3600 kB/s) CD-R 4X , 8X (CLV) , MAX. 12x, 16x, 24X (ZCLV) CD-RW 4X (CLV) HS-RW 4X, 8X, 10X (CLV) US-RW 8x, 10X (CLV)
Page 38 Chatper 1 Hardware Overview Table 1-7 DVD Super Multi drive specifications (2/4) Drive Specification Parameter HLDS (GSA-4082N.ATAKN0) DVD-R/RW/ROM 8x/8x/8x max. DVD-RAM (Ver.1.0)2x (Ver.2.2)2x, 3x, 5x DVD-Video (CSSCompliant Disc)4x max.(Single/Dual layer) Read(KB/s) DVD+R/+RW 8x/8xmax. DVD+R DL4xmax. CD-R/RW/ROM 24x/24x/24x max. CD-DA (DAE) 20x max. DVD-R 2x CLV, 4x ZCLV, 8x CAV DVD-R...
Page 39 Chapter 1 Hardware Overview Table 1-8 DVD Super Multi drive specifications (3/4) Drive Specification Parameter Pioneer(DVR-K16TBA) 8X CAV at DVD-ROM (Single Layer),DVD-R/ RW and +R / RW 6X CAV at DVD-ROM (DualLayer), DVD-R DL and +R DL Read(KB/s) 5X Zone CLV at DVD-RAM 24XCAV at CD-ROM andCD-R/ RW 8X Zone CLV at DVD-R / +R and +RW 6X Zone CLV at DVD-RW...
Page 40 Chatper 1 Hardware Overview Table 1-9 DVD Super Multi drive specifications (4/4) Drive Specification Parameter TEAC (DV-W28EA) 8X CAV at DVD-ROM (Single Layer),DVD-R/ +R 4X CAV at DVD-RW/ +RW 4X CAV at DVD+R (Dual Layer), DVD-R DL and +R DL 3X-5X Zone CLV at DVD-RAM Read(KB/s) 24XCAV at CD-ROM...
Page 41 Chapter 1 Hardware Overview Satellite L20 Maintenance Manual(960-Q01)
Page 42: Keyboard
Chatper 1 Hardware Overview Keyboard A keyboard which consists of 84(US)/85(Euro) keys is mounted on the system unit. The keyboard is connected to membrane connector on the system board and controlled by the keyboard controller. Figure 1-6 is a view of the keyboard. Figure 1-6 Keyboard See Appendix E for details of the keyboard layout.
Page 43: Tft Color Display
Chapter 1 Hardware Overview TFT Color Display The TFT color display is 15.0 inch and consists of LCD module and FL inverter board. 1.6.1 LCD Module The LCD module used for the TFT color display uses a backlight as the light source and can display a maximum of 262,144 colors with 1,024 x 768 resolution.
Page 44 Chatper 1 Hardware Overview Satellite L20 Maintenance Manual (960-Q01)
Page 45: Fl Inverter Board
Chapter 1 Hardware Overview 1.6.2 FL Inverter Board The FL inverter board supplies a high frequency current to illuminate the LCD module FL. Table 1-10 lists the FL inverter board specifications. Table 1-8 FL inverter board specifications Specifications Item SUMIDA FL9030 IV002 Input...
Page 46: Power Supply
Chatper 1 Hardware Overview Power Supply The power supply supplies 23 different voltages to the system board. The power supply microcontroller has the following functions. 1. Judges if the DC power supply (AC adapter) is connected to the computer. 2. Detects DC output and circuit malfunctions. 3.
Page 47 Chapter 1 Hardware Overview Voltage Power OFF Power OFF Object Suspend mode Boot mode Battery 1.484 - VCC_CORE 0.748 1.05 CPU, 915GM, ICH4-M +1.8V CPU, 915GM,ICH4-M +1.5V 915GM,ICH4-M +0.9V DDR2-SDRAM +1.8VSUS RC410MB, DDR2-SDRAM +1.5V_S5 SB400 USBPWR0 USBPWR1 USBPWR2 AVDD MAX9750 Clock Generator, Thermal Sensor, Mini-PCI, SDRAM(SPD), 915GM, SB400,...
Page 48: Batteries
Chatper 1 Hardware Overview Batteries The PC has the following two batteries. θ Main battery θ Real time clock (RTC) battery Table 1-12 lists the specifications for these two batteries. Table 1-10 Battery specifications Battery Name Battery Element Output Voltage Capacity Panasonic CGR-B/8B9BE...
Page 49: Battery Charging Control
Chapter 1 Hardware Overview 1.8.2 Battery Charging Control Battery charging is controlled by a power supply microprocessor. The power supply microprocessor controls power supply and detects a full charge when the AC adaptor and battery are connected to the computer. θ...
Page 50: Rtc Battery
Chatper 1 Hardware Overview 1.8.3 RTC Battery The RTC battery provides the power supply to maintain the date, time, and other system information in memory. Table 1-13 lists the Time required for charges of RTC battery and data preservation time. Table 1-13 Time required for charges of RTC battery Condition Time...
Page 51: Ac Adapter
Chapter 1 Hardware Overview AC Adapter The AC adapter is used to charge the battery. Table 1-14 lists the AC adapter specifications. Table 1-14 AC adapter specifications Parameter Specification DELTA LITE-ON SADP-65KB BFG PA-1650-02QT Power Input voltage AC 100V/240V Input frequency 50Hz/60Hz Input current ≦...
Page 52: Troubleshooting
2 Troubleshooting Chapter 2 Troubleshooting EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual...
Page 53 2 Troubleshooting Chapter 2 Contents Outline........................2-1 Basic Flowchart...................... 2-2 Power Supply ......................2-6 Procedure 1 Power Icon Check............... 2-6 Procedure 2 Connection Check............... 2-8 Procedure 3 Replacement Check ..............2-8 System Board ......................2-9 Procedure 3 Replacement Check ..............2-10 2.5-inch HDD .......................
Page 54 2 Troubleshooting Procedure 2 Connector Check and Replacement Check........ 2-21 2.11 IEEE 1394 Test(Optional)..................2-22 Procedure 1Test Program Check ..............2-22 Procedure 2Connector Check ................ 2-22 2.12 Cooling Module....................2-23 Procedure 1Test Program Check ..............2-23 Procedure 2Connector Check and Replacement Check......... 2-23 EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual 2-iii...
Page 55 2 Troubleshooting Figures Figure 2-1 Basic flowchart(1/2)..................2-3 Tables Table 2-1 HDD error code and status................2-13 2-iv EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual...
Page 56: Outline
3. Cleaning disk kit (for ODD drive cleaning) 4. Bootable CD 5. PC Card loopback connector 6. Multimeter 7. External monitor 8. Headphone 9. Microphone 10. A-BEX TEST DVD 11. Music CD 12. DVD TSD-1 (TOSHIBA EMI DVD Test Media) EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual...
Page 57: Basic Flowchart
2 Troubleshooting 2.2 Basic Flowchart Basic Flowchart The basic flowchart in Figure 2-1 serves as a guide for identifying a possibly faulty FRU. Before going through the diagnostic flowchart steps, verify the following: Ask the user if a password has been registered and, if so, ask him or her to enter the password.
Page 58 Follow the system board diagnostic Any error message displayed ?? procedure in Section 2.4 Follow the display diagnostic Message "In Touch with Tomorrow Toshiba" displayed procedure in Section 2.7 See the previous page to "Password=" displayed ?? delete the password.
Page 59 2 Troubleshooting 2.2 Basic Flowchart Follow the keyboard diagnostic Keyboard works well ?? procedure in Section 2.6 Insert Bootable CD into ODD Follow the ODD diagnostic Diagnostic Program procedure in Section 2.8 Loaded ?? Perform each test with the diagnostic program. Identify the test resulting in the error Any error detected by the and perform the appropriate...
Page 60 2.2 Basic Flowchart 2 Troubleshooting If the diagnostic program cannot detect an error, the error may be intermittent. Run the continuous test program repeatedly to isolate the problem. Check the log utilities function to confirm which diagnostic test detected the error, then perform the appropriate troubleshooting procedures as follows: 1.
Page 61: Power Supply Troubleshooting
2 Troubleshooting 2.3 Power Supply Power Supply The power supply in the computer controls many functions and components. To check if the power supply is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Power Icon Check Procedure 2 Connection Check Procedure 3...
Page 62 2.3 Power Supply 2 Troubleshooting DC IN LED DC IN LED Power supply status On in Blue or Green DC power being supplied (from the AC adapter) Battery damage and can’t charge during DC-in. Else If the DC IN LED off, follow the steps below: 1.
Page 63: System Board Troubleshooting
2 Troubleshooting 2.3 Power Supply Procedure 2 Connection Check Power is supplied to the system board as illustrated below: System board adaptor AC power cord AC adaptor cord Battery pack Follow the steps below to check whether each connector has been connected correctly: Check 1 Make sure the AC adaptor and AC power cord have been firmly plugged into the DC IN 19V socket and wall outlet, respectively.
Page 64: Procedure 1 Message Check
2.4 System Board 2 Troubleshooting System Board To check if the system board is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Message Check Procedure 2 Test Program Check Procedure 3 Replacement Check Procedure 1 Message Check When the power is turned on, the system performs the self-diagnostic Power On Self Test (POST) embedded in the BIOS ROM.
Page 65 2 Troubleshooting 2.4 System Board Procedure 2 Test Program Check The maintenance test program contains several programs for diagnosing the system board and CPU. Execute the following test programs using the procedures described in Chapter 3. 1. System test 2. Memory test 3.
Page 66: Procedure 2 Partition Check
2.5-inch HDD 2 Troubleshooting 2.5-inch HDD To check if the 2.5-inch HDD is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Message Check Procedure 2 Partition Check Procedure 3 Format Check Procedure 4 Test Program Check Procedure 5 Connector Check and Replacement Check CAUTION: The contents of the 2.5-inch HDD will be erased when the HDD 2.5-inch HDD diagnostic test or formatting is executed.
Page 67 2 Troubleshooting 2.5 2.5-inch HDD create a DOS partition on drive C. Then restart the computer.. If the problem persists, go to Procedure 3. Check 3 If drive C is listed as active in the FDISK menu, perform Check 4. If drive C is not listed as active, return to the FDISK menu and choose the option to set the active partition for drive C.
Page 68 2.5-inch HDD 2 Troubleshooting Procedure 4 Test Program Check Run the HDD test program stored on the maintenance test program disk for all test items. See Chapter 3 for details on how to use the test program. If an error is detected during the HDD test, an error code and status will be displayed. The error codes and their status names are listed in Table 2-1.
Page 69 2 Troubleshooting 2.5 2.5-inch HDD Procedure 5 Connector Check and Replacement Check The HDD or system board may be faulty. Disassemble the computer following the steps described in Chapter 4 and perform the following checks: Check 1 Make sure the following connectors have been firmly connected to the HDD, system board and CPU.
Page 70: Keyboard
2.6 Keyboard 2 Troubleshooting Keyboard To check if the computer’s keyboard is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Test Program Check Procedure 2 Connector Check and Replacement Check Procedure 1 Test Program Check Execute the Keyboard test available as part of the maintenance test program. See Chapter 3 for information on how to perform the test.
Page 71: Procedure 1 External Monitor Check
2 Troubleshooting 2.7 Display Display To check if the computer’s display is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 External Monitor Check Procedure 2 Test Program Check Procedure 3 Connector Check and Replacement Check Procedure 1 External Monitor Check Connect an external monitor to the computer's external monitor port, then boot the computer.
Page 72 2.7 Display 2 Troubleshooting Check 3 The FL may be faulty. Replace it with a new one and return to Procedure 3. If there is still an error, perform Check 4. Check 4 The FL inverter board may be faulty. Replace it with a new one and return to Procedure 3.
Page 73: Odd (Optical Disk Drive)
CD in the computer's CD, turn on the computer and run the test. Then insert a test ODD (Toshiba-EMI DVD-ROM TEST DISK TSD-1) into the ODD drive. See Chapter 3 for information on how to perform the test.
Page 74 2.8 ODD Drive 2 Troubleshooting Check 3 The ODD drive may be faulty. Replace the ODD drive with a new one following the steps in Chapter 4. If the ODD drive is still not functioning properly, perform Check 4. Check 4 The system board may be faulty.
Page 75: Procedure 2 Connector Check And Replacement Check
2 Troubleshooting 2.9 LAN To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Test Program Check Procedure 2 Connector Check and Replacement Check Procedure 1 Test Program Check Execute the LAN check program available as part of the maintenance test program. This program will check the LAN.
Page 76: Procedure
2.10 Audio Test 2 Troubleshooting 2.10 Audio Test To check if the computer’s Speaker is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Test Program Check Procedure 2 Connector Check and Replacement Check Procedure 1 Test Program Check Execute the Audio test available as part of the maintenance test program.
Page 77: Procedure 2 Connector Check
2 Troubleshooting 2.11 IEEE 1394 Test 2.11 IEEE 1394 Test(Optional) To check if the computer’s IEEE 1394 is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Test Program Check Procedure 2 Connector Check Procedure 1 Test Program Check Execute the IEEE 1394 test program available as part of the maintenance test program.
Page 78: Replacement Check
2.12 Cooling Module 2 Troubleshooting 2.12 Cooling Module To check if the computer’s cooling module is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1 Test Program Check Procedure 2 Connector Check and Replacement Check Procedure 1 Test Program Check Execute the Fan On/Off test program available as part of the maintenance test program.
Page 79 2 Troubleshooting 2.14 Cooling Module 2-24 EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual...
Page 80: Chapter 3 Test Program For Field
Test Program for Field. Chapter 3 Diagnostic Programs Satellite L20 Maintenance Manual(960-Q01)
Page 81: Chapter 3 Contents
Test Program for Field. Chapter 3 Contents Tests and Diagnostics Software Overview ............. 82 Executing the Diagnostic Test ................83 Subtest names......................87 System Test......................90 Memory Test......................92 Keyboard Test......................95 Display Test ......................98 Floppy Disk Test....................113 Hard Disk Test ......................
Page 82: Tests And Diagnostics Software Overview
The Diagnostics Disk (all tests) A formatted working disk for the floppy disk drive test (all tests) A CD test media (Toshiba Backup CD ROM for the CD-ROM test) The following sections detail the tests contained within the Diagnostic Test Menu. Refer to Sections 3.18, 3.19, 3.20 and, 3.21 for detailed information on the remaining functions of the...
Page 83: Executing The Diagnostic Test
1. Create a DOS bootable disk and copy all the files from the Tests and Diagnostics software to the disk. 2. Insert the boot disk into the computer’s floppy disk drive and turn on the computer. The following screen displays: TOSHIBA Satellite(Pro) L20/L25 Diagnostics ::Select item Version v1.00 (C) Copyright QUANTA Corp. 2005- :Escape [ DIAGNOSTICS MENU ] 01.DIAGNOSTIC TEST...
Page 84 Test Program for Field. The following menu displays: TOSHIBA Satellite(Pro) L20/L25 Diagnostics ::Select item Version V1.00 (C) Copyright QUANTA Corp. 2005- :Escape [ DIAGNOSTICS MENU ] 01. DIAGNOSTIC TEST 02. RUNNING TEST 03. DMI INFORMATION [ DIAGNOSTIC TEST MENU ] 04.
Page 85 Diagnostic Test and returns to the Diagnostics Menu. 4. Select the subtest you want to execute and press Enter. The following menu displays: TOSHIBA Satellite(Pro) L20/L25 Diagnostics : :Select item Version V1.00 (C) Copyright QUANTA Corp. 2005-...
Page 86 Test Program for Field. TOSHIBA Satellite(Pro) L20/L25 Diagnostics : :Select item Version V1.00 (C) Copyright QUANTA Corp. 2005- :Escape [ DIAGNOSTICS MENU ] [ SYSTEM TEST ] [ TEST PARAMETER ] 01. DIAGNOSTIC TEST 01. FAN ON/OFF 01. FAN ON/OFF 01.
Page 87: Subtest Names
Test Program for Field. Subtest names Table 3-1 lists the subtest names for each test program in the Diagnostic Test menu. Table 3-1 Subtest Names(1/3) Test Name Subtest Name SYSTEM TEST FAN ON/OFF check Battery TEST CPU Temperature MEMORY TEST Conventional Memory Protected Mode Protected Mode (32MB-MAX)
Page 88 Test Program for Field. Table 3-1 Subtest Names(2/3) Test Name Subtest Name FLOPPY DISK TEST Sequential Read Sequential W/R/C Random Address/Data Write Specified Address Read Specified Address HARD DISK TEST Sequential Read Address Uniqueness Random Address Data Cross Talk and Peek Shift Write Specified Address Read Specified Address Sequential Write...
Page 89 Test Program for Field. Table 3-1 Subtest Names(3/3) Test Name Subtest Name MULTIMEDIA TEST Sequential Read Test Random Read Test Read Specified Address Test 1 point W/R/C Test MEMORY2 All one/zero Walking 1/Walking 0(Left) Walking 1/Walking 0(Right) Walking 1/Walking 0(Left /Right) *This test cannot support.
Page 90: System Test
Test Program for Field. System Test To execute the System Test select 01 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The System Test contains two subtests. Move the highlight bar to the subtest you want to execute and press Enter. Subtest 01 FAN ON/OFF Checking Select 1,2,3 to control FAN on/off , 1=Fan on , 2=Fan off , 3=Exit .
Page 91 Test Program for Field. Subtest 03 CPU Temperature This will display CPU Temperature for check , press [ESC] to exit . CPU Temperature : XX Satellite L20 Maintenance Manual(960-Q01)
Page 92: Memory Test
Test Program for Field. Memory Test To execute the Memory Test select 02 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Memory Test contains five subtests that test the computer’s memory. Move the highlight bar to the subtest you want to execute and press Enter.
Page 93 Test Program for Field. 5. Address pattern test “16 bit write and 16 bit read” of address pattern data is executed and the new data is compared with the original data. Test data = 0000H, 0004H, 0008H, 000CH,...8000H, 8004H, through FFECH Subtest 02 Protected Mode...
Page 94 Test Program for Field. Test Process: 1. Checks the memory size to determine the maximum size of installed memory. 2. Tests memory addresses 0 to the maximum installed. 3. Writes, reads, and compares test data after a memory refresh cycle (16ms or more).
Page 95: Keyboard Test
Test Program for Field. Keyboard Test To execute the Keyboard Test select 03 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Keyboard Test contains seven subtests that test the computer’s keyboard and mouse actions. Move the highlight bar to the subtest you want to execute and press Enter.
Page 96 Test Program for Field. Subtest 04 Hot Key Display [4 Key] This subtest is used for the 4 hot key and functions the same as Subtest 1. Subtest 05 Hot Key Display [5 Key] This subtest is used for the 5 hot key and functions the same as Subtest 1. Subtest 06 Keyboard LED The LED display for Num Lock, Caps Lock, and Scroll Lock (in that order)
Page 97 Test Program for Field. LEFT PRESS TOUCH_PAD TEST RIGHT PRESS Please Do Not Press the Left and Right Button At The Same Time Satellite L20 Maintenance Manual(960-Q01)
Page 98: Display Test
Test Program for Field. Display Test To execute the Display Test select 04 from the Diagnostic Test Menu, press Enter and follow the directions displayed on the screen. The Display Test contains twelve subtests that test the display in various modes. Move the highlight bar to the subtest you want to execute and press Enter.
Page 99 Test Program for Field. Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu. Subtest 02 Character Set This subtest displays the character codes 00H - FFH, using Mode 01H (40*25).
Page 100 Test Program for Field. Subtest 03 80 * 25 Character Display This subtest uses 80*25 video resolution to display character codes 20H - 7EH using Mode 03H (80*25). The data displayed is shifted 1 byte to the left for each line as shown below. 80*25 CHARACTER DISPLAY 01234567890123456789012345678901234567890123456789012345678901234567890123456789 !”#$%&’()*=,.-/0123456789:;...
Page 101 Test Program for Field. Subtest 04 320 * 200 Character Display This subtest uses 320*200 video resolution to display green, red and yellow followed by cyan, magenta, and white. The screen below shows the displays when this subtest is executed. 320 * 200 GRAPHICS DISPLAY COLOR SET 0 : [ 4 ] GREEN...
Page 102 Test Program for Field. 320*200 GRAPHICS DISPLAY [ D ] BLACK GRAY BLUE BLUE GREEN GREEN CYAN CYAN MAGENTA MAGENTA BROWN YELLOW WHITE WHITE Press [Enter] KEY Press ENTER to display 64 gradations of red, green, blue and white on the screen 320*200 GRAPHICS DISPLAY [ 13 ]...
Page 103 Test Program for Field. Subtest 05 640 * 200 Character Display This subtest uses 640*200 video resolution to display three windows, each window drives a different set of dots: even dots, odd dots and all dots. The screen below displays when this subtest is executed. 640 * 200 GRAPHICS DISPLAY : [ 6 ] EVEN...
Page 104 Test Program for Field. Subtest 06 640 * 480 Character Display This subtest uses 640*350 video resolution to display 16 colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white. The screen below displays when this subtest is executed.
Page 105 Test Program for Field. 640*480 GRAPHICS DISPLAY [12 ] BLACK DARK GRAY BLUE LIGHT BLUE GREEN LIGHT GREEN CYAN LIGHT CYAN LIGHT MAGENTA LIGHT MAGENTA BROWN YELLOW WHITE INTENSIFIED WHITE Press [Enter] KEY To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Page 106 Test Program for Field. Subtest 07 Display Page This subtest displays video pages zero through seven. DISPLAY PAGE 0 000000000000000000000000000000000000000000000000000000000000000 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 0.............0 000000000000000000000000000000000000000000000000000000000000000 To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Page 107 Test Program for Field. Subtest 08 "H" Pattern Display This subtest displays a full screen of "H" patterns. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH To exit this subtest and return to the Display Test menu:...
Page 108 Test Program for Field. Subtest 10 Color Graphics Display This subtest displays three colors, cyan, white and yellow on the screen as shown below. 640 * 480 GRAPHICS DISPLAY CYAN WHITE YELLOW To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Page 109 Test Program for Field. Subtest 11 Color Attributes Display This subtest displays 16 colors: black, blue, green, cyan, red, magenta, brown, white, dark gray, light blue, light green, light cyan, light red, light magenta, yellow, and intensified white. The screen below displays when this subtest is executed.
Page 110 Test Program for Field. NOTE: The following screen does not display correctly. It will be amended in the next version. Press [Enter] Key Press Enter to execute the VRAM mapping test which displays a vertical line at four dot intervals using Mode 12. Press [Enter] Key Press Enter to display VRAM mapping test using the all dots Mode.
Page 111 Test Program for Field. Press [Enter] Key To exit this subtest and return to the Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu. Press Ctrl + break if YES was selected for Test Loop on the Test Parameter Menu.
Page 112 Test Program for Field. Subtest 12 Color Tiling This subtest displays black, gray, white, and 3 gradations of red, green, and blue as shown in the following display. Black Green Blue Gray Green Blue Gradation Gradation Gradation White Green Blue Gradation Gradation Gradation...
Page 113: Floppy Disk Test
Test Program for Field. Floppy Disk Test CAUTION: Before running the floppy disk test, prepare a formatted work disk. Remove the diagnostics disk and insert the work disk into the FDD. The contents of the floppy disk will be erased. To execute the Floppy Disk Test select 05 from the Diagnostic Test Menu, press Enter and follow the directions on the screen.
Page 114 Test Program for Field. Subtest 04 Write Specified Address NOTE: The first two digits of the ADDRESS indicate which track is being tested, the next two digits indicates the head, and the last two digits indicate the sector. This subtest allows you to verify the errors from Subtest 02. It writes specified data to a specified track and head.
Page 115: Hard Disk Test
Test Program for Field. Hard Disk Test To execute the Hard Disk Test select 06 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Hard Disk Test contains eight subtests that test the functions of the hard disk drive. Move the highlight bar to the subtest you want to execute and press Enter.
Page 116 Test Program for Field. Subtest 04 Cross Talk and Peak Shift This subtest writes eight of the most likely to fail data patterns (shown below) to a cylinder on the HDD, then reads the data while moving from cylinder to cylinder.
Page 117 Test Program for Field. Subtest 07 Sequential Write This subtest writes specified data to all cylinders on the HDD. The following message displays on the screen to enter the test data. TEST DATA ????(=37b3H) Subtest 08 W-R-C Specified Address This subtest writes specified data to a specified sector count, then reads and compares the result.
Page 118: Real Time Clock Test
Test Program for Field. 3.10 Real Time Clock Test To execute the Real Time Clock Test select 07 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Real Time Clock Test contains three subtests that test the computer’s real time functions.
Page 119 Test Program for Field. Subtest 02 Backup Memory This subtest writes 50 bytes of test data (FFH, AAH, 55H, and 00H) to the CMOS 14 address, then reads the new data and compares it to the original data. Subtest 03 Real Time Carry CAUTION: When this subtest is executed, the current date and time are reset.
Page 120: Cache Memory Test
Test Program for Field. 3.11 Cache Memory Test To execute the Cache Memory Test select 08 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The Cache Memory Test contains eight subtests that test the computer's cache memory. Move the highlight bar to the subtest you want to execute and press Enter.
Page 121 Test Program for Field. Subtest 04 Bit Shift Pattern Test This subtest reads the contents of cache memory and saves it into RAM. The subtest then writes the bit shift data patterns (1 bit shifted every 4 bytes reads the new data and compares the result with the original data. The original cache memory content is then restored to the cache memory.
Page 122: High Resolution Display Test
Test Program for Field. 3.12 High Resolution Display Test To execute the High Resolution Display Test select 09 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The High Resolution Display Test contains six subtests that test the computer's high resolution video display. Move the highlight bar to the subtest you want to execute and press Enter.
Page 123 Test Program for Field. Subtest 02 640*480 Mode Display This subtest uses 640*480 video resolution to display a high resolution white frame, 256 letter types (8*16 pixels) and 64 gradations of white, red, green, and blue as shown below. [ 640*480 256 ] Press [ Enter ]key 256 letter types...
Page 124 Test Program for Field. Subtest 03 800 * 600 Mode Display This subtest uses 800*600 video resolution to display a high resolution white frame, 256 letter types (8*16 pixels) and 256 gradations of white, red, green, and blue as shown below. Press [ Enter ] key 800*600 256 256 letter types...
Page 125 Test Program for Field. Subtest 04 1024* 768 Mode Display This subtest uses 1024*768 video resolution to display a high resolution white frame, 256 letter types (8*16 pixels) and 64 gradations of white, red, green, and blue as shown below. [ 1024*768 256 ] Press [ Enter ] key 256 letter types...
Page 126 Test Program for Field. Subtest 05 “H” Pattern Display This subtest uses the 1024*768 Mode to display a high resolution white frame, “H” letters (8*16 pixels fonts), at 128 letters by 48 lines. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH...
Page 127 Test Program for Field. Subtest 06 Focus Test ( “E” Pattern) This subtest sets the 1024*768 Mode and displays “E” patterns (18*18 dot fonts), at 56 letters *42 lines surrounded by a high resolution white frame. To exit this subtest and return to the High Resolution Display Test menu: Press Enter if NO was selected for Test Loop on the Test Parameter Menu.
Page 128: Multimedia Test
The Multimedia Test contains four subtests that test the computer's multimedia functions. Move the highlight bar to the subtest you want to execute and press Enter. NOTE: Use the Toshiba Backup CD-ROM for Subtests 01, 02, and 03. Subtest 01 Sequential Read Test This subtest sequentially reads one block unit (2K bytes) of all logical addresses from the test CD.
Page 129: Memory2 Test
Test Program for Field. 3.14 MEMORY2 Test To execute the Expansion Test select 11 from the Diagnostic Test Menu, press Enter and follow the directions on the screen. The MEMORY2 Test contains four subtests that test the computer's. Move the highlight bar to the subtest you want to execute and press Enter. NOTE: If NO is selected for Test Loop on the Test Parameter menu, the Test Status screen displays while the test is executing.
Page 130 Test Program for Field. Tee test method is the same as Subtest2. However, the data to be used differs. 7FFF7FFF7FFF7FFF8000800080008000 BFFFBFFFBFFFBFFF4000400040004000 DFFFDFFFDFFFDFFF2000200020002000 FFFBFFFBFFFBFFFB0004000400040004 FFFDFFFDFFFDFFFD0002000200020002 FFFEFFFEFFFEFFFE0001000100010001 80008000800080007FFF7FFF7FFF7FFF 4000400040004000BFFFBFFFBFFFBFFF 0004000400040004FFFBFFFBFFFBFFFB 0002000200020002FFFDFFFDFFFDFFFD 0001000100010001FFFEFFFEFFFEFFFE Satellite L20 Maintenance Manual(960-Q01)
Page 131: Error Codes And Error Status Names
Test Program for Field. 3.15 Error Codes and Error Status Names The following table lists the error codes and error status names for the Diagnostic Tests. Table 3-2 Error codes and error status names (1/2) Device Name Error Code Error Status Name (Common) Data Compare Error Memory...
Page 132 Test Program for Field. Table 3-2 Error codes and error status names (2/2) Device Name Error Code Error Status Name Undefined Error Write Fault Status Error No Sense Error Other Error Cache Memory Protect Mode Error Caching Error Other Error Multimedia Write Error Invalid Drive...
Page 133: Running Test
Test Program for Field. 3.16 Running Test NOTES: 1. You may add or delete subtests using the Running Test Edit Item function, see Section 3.20. 2. Do not forget to insert a work disk in the FDD. If a work disk is not inserted an error will be generated during the Floppy Disk Test.
Page 134: Dmi Infoemation
2. Region Code 3.17.2 Write DMI Information The Write DMI Information program contains the following information for the computer : 1. Manufacture Name ( TOSHIBA ) 2. Product Name ( Satellite XXXXXX ) 3. Part Number ( PSL20X-XXXXXX ) 4. Serial Number ( 12345678W ) 5.
Page 135 Test Program for Field. Note : Please Check New DMI Information After System Restart !! 1. **** Manufacture Name ( TOSHIBA ) - (15) 2. **** Product Name ( Satellite XXXXXX ) - (31) 3. **** Part Number ( PSL20X-XXXXXX ) - (15) 4.
Page 136: Log Utilities
Test Program for Field. 3.18 Log Utilities This function logs error information generated while a test is in progress and stores the results in RAM (Maximum error log : 500 times). This function can store data on a floppy disk. If the power switch is turned off, the error information will be lost. Error information is displayed in the following order: 1.
Page 137 Test Program for Field. 2. Error information displayed on the screen can be manipulated with the following number keys: The 1 key scrolls the display to the next page. The 2 key scrolls the display to the previous page. The 3 key returns to the Diagnostics Menu. The 4 key erases all error log information in RAM.
Page 138: System Configuration
Test Program for Field. 3.19 System Configuration Select 05 from the Diagnostics Menu and press Enter to display the following system configuration: SYSTEM CONFIGURATION : * - BIOS VER = VX.XX KBC VER = XXXX * - MAC ADDRESS : XXXXXXXXXXXX * - 0 ASYNC ADAPTER * - 1 HDD DRIVE(S):XXXXXXXXXXXXXXXXXXXXXXXXXX FW Rev.:XXXXXXXX...
Page 139: Running Test Edit Item
Test Program for Field. 3.20 Running Test Edit Item 3.20.1 Function Description Function description lets you add or delete the subtests used to execute the Running Test. The following screen displays after pressing the Tab key to edit an item in the Running Test. KEY OPERATION Cursor Down Cursor Up...
Page 140 Test Program for Field. 1. Enter a number or 0 for Loop Count and press Enter. Select a number from 1 to 65535 to define the number of times the Running Test executes. Select 0 to run the test continuously until halted by the user. 2.
Page 141: Common Tests An Operation
Test Program for Field. 3.21 Common Tests and Operation 3.21.1 How to operate a window To input parameters, or open a window use the following keys. : to move a highlight bar [Enter] key : to select an item at the highlight bar [Esc] key : to close the current window and go back to the previous window...
Page 142 Test Program for Field. Pass Count Displays the number of times the test has been executed. Error Count Displays the number of errors which have occurred during the test. Write Data Displays only the test data that has failed to compare during the test while being written during the test.
Page 143: Test Stop Display
Test Program for Field. 3.21.4 Test Stop Display If an error occurs during a Subtest and YES is selected for Error Stop, the following message displays: [HALT OPERATION] 1. Test end 2. Continue 3. Retry * Select 1, 2, or 3 The three selections have the following functions: 1: Terminates the test program and exits to the subtest menu.
Page 144: Replacement Procedures
Chapter 4 Replacement Procedures Satellite L20 Maintenance Manual(960-Q01)
Page 145 Replacement Procedures 4-ii Satellite L20 Maintenance Manual(960-Q01)
Page 146 Replacement Procedures Chapter 4 Contents Overview........................144 Safety Precautions ....................145 Before You Begin ....................146 Disassembly Procedure..................147 Assembly Procedure ....................148 Tools and Equipment ...................148 Screw Tightening Torque ..................149 Grip Color ......................149 Screw Notation.....................150 Battery pack .......................151 PC card........................154 HDD...........................156 Wireless LAN card ....................160 Memory module......................162 Keyboard........................165 LED Board .........................169...
Page 147 Replacement Procedures Figures Figure 4-1 Removing the battery pack.................152 Figure 4-2 Removing a PC card...................154 Figure 4-3 Removing the HDD assembly................157 Figure 4-4 Removing a HDD....................158 Figure 4-5 Removing a wireless LAN card .................160 Figure 4-6 Removing a memory module ................163 Figure 4-7 Removing screws for KBD cover/keyboard ............166 Figure 4-8 Removing the keyboard/KBD cover..............167 Figure 4-9 Removing the LED board ...................169...
Page 148: Overview
Replacement Procedures Overview This chapter describes the procedure for removing and replacing the field replaceable units (FRUs) in the PC. It may not be necessary to remove all the FRUs in order to replace one. The chart below provides a guide as to which other FRUs must be removed before a particular FRU can be removed.
Page 149: Safety Precautions
DANGER: 1. In the case of the battery, always use authentic parts or equivalent parts approved by Toshiba. Other batteries may have different specifications that are incompatible with the computer and may result in fire or explosion.
Page 150: Before You Begin
Replacement Procedures Before You Begin Take note of the following points before starting work. Always remove the AC adapter and battery pack before commencing any of the procedures. The procedure for removing the battery pack is described in section “4.2.1 Battery Pack”. 1.
Page 151: Disassembly Procedure
Replacement Procedures Disassembly Procedure Three main types of cable connector are used. • Pressure plate connector • Spring connector • Normal pin connector When disconnecting a pressure plate connector, lift up the tag on one side of the plastic pressure plate on the connector and pull the cable out from the connector. When reconnecting a cable to a pressure plate connector, lift up the pressure plate to a suitable height and insert the cable into the connector.
Page 152: Assembly Procedure
Replacement Procedures Assembly Procedure After the computer has been disassembled and the part that caused the fault has been repaired or replaced, the computer must be reassembled. Take note of the following general points when assembling the computer. • Take your time and follow the instructions carefully. Hurrying the assembly work will only introduce new problems.
Page 153: Screw Tightening Torque
Replacement Procedures Screw Tightening Torque Use the following torque when tightening screws. CAUTION: Overtightening may damage screws or parts. Undertightening may allow screws to loosen (and possibly fall out) causing a short circuit or other damage. NOTE: To tighten screws quickly and accurately, an electric screwdriver is recommended.
Page 154: Screw Notation
Replacement Procedures Screw Notation To make maintenance of the computer easier, markings of the kinds of the screws including the types and lengths of the screws are indicated on the computer body. Format: Screw shape + Screw length (mm) Screw shape B: Bind screw F: Thin head screw S: Super thin head screw...
Page 155: Battery Pack
Replacement Procedures Battery pack Removing the battery pack The following describes the procedure for removing the battery pack (See Figure 4-1). CAUTION: Take care not to short circuit the terminals when removing the battery pack. Similarly, do not drop, knock, scratch, disassemble, twist, or bend the battery pack.
Page 156 Dispose always the used battery pack in accordance with the laws and ordinances of your local authority. Use only the batteries approved by Toshiba. NOTE: Check visually the battery terminals and clean off any dirt with a dry cloth.
Page 157 Replacement Procedures 2. Disconnect the AC adapter and all external devices from the computer. 3. Attach the battery cover to the battery pack. 4. Insert the battery pack 5. Ensure the battery release lock (1) is moved into its locked position Satellite L20 Maintenance Manual(960-Q01)
Page 158: Pc Card
Replacement Procedures PC card Removing a PC card The following describes the procedure for removing a PC card (See Figure 4-2). CAUTION: Insert or remove a PC card in accordance with any instructions in a PC card manual or the manuals of the computer system you are using. 1.
Page 159 Replacement Procedures 2. Insert a PC card and press it until it is securely connected. Satellite L20 Maintenance Manual(960-Q01)
Page 160: Hdd
Replacement Procedures Removing a HDD The following describes the procedure for removing a HDD (See Figure 4-4 to 4-5). CAUTION: Take care not to press on the top or bottom of a HDD. Pressure may cause data loss or damage to the device. 1.
Page 161 Replacement Procedures CAUTION: When a HDD is installed, they are installed in the position as the following figure. M2.5x4.0B FLAT BIND Tow screw insert HDD HDD slot cover module CN 18 Figure 4-3 Removing the HDD assembly Satellite L20 Maintenance Manual(960-Q01)
Page 162 Replacement Procedures 5. Remove the following screws securing the HDD holder and remove the HDD holder. • M3.0×4.0B FLAT BIND screw HDD holder M3.0x3.5.0F FLAT Figure 4-4 Removing a HDD Satellite L20 Maintenance Manual(960-Q01)
Page 163 Replacement Procedures Installing a HDD The following describes the procedure for installing a HDD (See Figure 4-4 to 4-5). 1. Install a HDD to the HDD holder and secure it with the following screws. • M3.0×3.5F FLAT BIND screw NOTE: Although they are 3mm head screws, screw torque must be set in 2.5kg-cm for four screws securing the HDD holder.
Page 164: Wireless Lan Card
Replacement Procedures Wireless LAN card Removing a Wireless LAN card The following describes the procedure for removing a Wireless LAN card (See Figure 4-6). 1. Remove the following screw of wireless cover securing wireless LAN card cover and remove it. •...
Page 165 Replacement Procedures Installing a Wireless LAN card The following describes the procedure for installing a Wireless LAN card (See Figure 4-7). 1. Insert a wireless LAN card terminals slantwise into the connector CN27 on the computer and press a wireless LAN card until it is securely in place. 2.
Page 166: Memory Module
Replacement Procedures Memory module CAUTION: The power of the computer must be turned off when you remove a memory module. Removing a memory module with the power on risks damaging the module or the computer itself. Do not touch memory module terminals. Any dirt on the terminals may cause memory access problems.
Page 167 Replacement Procedures Figure 4-6 Removing a memory module Satellite L20 Maintenance Manual(960-Q01)
Page 168 Replacement Procedures Installing a memory module To install a memory module, confirm that the computer is in boot mode. Then perform the following procedure (See Figure 4-8). 1. Insert a memory module into the connector of the computer slantwise (terminal side first) and press it to connect firmly.
Page 169: Keyboard
Replacement Procedures Keyboard Removing the keyboard The following describes the procedure for removing the keyboard (See Figure 4-9 to 4-11). CAUTION: As the keycap may fall out, when handling the keyboard always hold it by the frame and do not touch the keycap. 1.
Page 170 Replacement Procedures M2.5x6.0 M2,0X3.0 Figure 4-7 Removing screws for KBD cover/keyboard Satellite L20 Maintenance Manual(960-Q01)
Page 171 Replacement Procedures KBD cover Keyboard Figure 4-8 Removing the keyboard/KBD cover Satellite L20 Maintenance Manual(960-Q01)
Page 172 Replacement Procedures Installing the keyboard The following describes the procedure for installing the keyboard (See Figure 4-9 to 4-110). 1. Turn the keyboard upside down and place it on the palm rest as its face down. Connect the keyboard flexible cable to the connector CN3200 on the system board. 2.
Page 173: Led Board
Replacement Procedures LED Board Removing the LED Board The following describes the procedure for removing the LED board (See Figure 4-12). 1. Remove the following screw securing the switch membrane. • M2.5×3.0B FLAT BIND screw 2. Push up the LED board to the arrow direction and remove it. LED Board M2.5x3.0 FLAT BIND Figure 4-9 Removing the LED board...
Page 174 Replacement Procedures Installing the LED Board The following describes the procedure for installing the switch membrane (See Figure 4-12). 1. Press LED board in the computer. 2. Secure the LED board with the following screw. • M2.5×3.0B FLAT BIND screw Satellite L20 Maintenance Manual(960-Q01)
Page 175: Optical Disk Drive
Replacement Procedures Optical disk drive NOTE: Do not apply excessive force to the top of an optical disk drive. Do not touch the shaded portion of the figure below, when the drive is removed or installed. Removing an optical disk drive The following describes the procedure for removing an optical disk drive (See Figure 4-13 and 4-14).
Page 176 Replacement Procedures Optical disk drive M2.5 x 6.0B FLAT BIND M2.5 x 6.0B FLAT BIND Figure 4-10 Removing an optical disk drive Satellite L20 Maintenance Manual(960-Q01)
Page 177 Replacement Procedures ODD bracket M2.0×3.0 Figure 4-11 Disassembling the ODD bracket Installing an optical disk drive The following describes the procedure for installing an optical disk drive (See Figure 4-13 and 4-14). 1. Attach the ODD bracket to an optical disk drive and secure it with the following screws.
Page 178 Replacement Procedures • M2.5×6.0B FLAT BIND screw Satellite L20 Maintenance Manual(960-Q01)
Page 179: Display Assembly
Replacement Procedures 4.10 Display assembly Removing the display assembly The following describes the procedure for removing the display assembly (See Figure 4-15 to 4-20). 1. Close the display and turn the computer upside down . 2. Remove the following screws from the k/b cover of the computer. •...
Page 180 Replacement Procedures 3. Open the MINIPCI Door and remove the wireless LAN antenna connector . Figure 4-13 Removing the MINIPCI door and connetor (back) 4. Open the display and removing the k/b cover and keyboard . Satellite L20 Maintenance Manual(960-Q01)
Page 181 Replacement Procedures Figure 4-17 Removing the cables (back) 5. Pull out the wireless LAN antenna cables from the guide Wireless LAN antenna cable Figure 4-14 Removing the antenna cables (back) 6. Opening the display to 180 degree, and remove the hinge screw . ‧...
Page 182 Replacement Procedures M2.5x6.0 FLAT BIND (Locktight) M2.5x6.0 FLAT BIND (Locktight) Figure 4-15 Removing the hinge screw (back) [back] Satellite L20 Maintenance Manual(960-Q01)
Page 183 Replacement Procedures 7. Remove the LCD harness from the connector on the system board and Pulling out the pole of hinge from the hole of hinge assembly, remove the display assembly from the base assembly. Base assembly Display assembly Figure 4-16 Removing the LCD harness and remove display assembly Satellite L20 Maintenance Manual(960-Q01)
Page 184 Replacement Procedures Installing the display assembly The following describes the procedure for installing the display assembly (See Figure 4-15 to 4-20). 1. Inserting the pole of hinge to the hole of hinge assembly, set the display assembly on the base assembly. 2.
Page 185: Cover Assembly
Replacement Procedures 4.11 Cover assembly Removing the cover assembly The following describes the procedure for removing the cover assembly (See Figure 4-21 to 4-24). 1. Turn over the computer. 2. Remove the following screws securing the cover assembly from the back and bottom of computer.
Page 186 Replacement Procedures Figure 4-17 Removing the screws (back) 3. Disconnect the touch pad flat cable from the connector on the system board. 4. Removing the screw from power board and remove the power board . M2.5×3.0B FLAT BIND screw Satellite L20 Maintenance Manual(960-Q01)
Page 187 Replacement Procedures M2.5x3.0 Power board Touch pad flat cable Figure 4-18 Removing the screws & cables (front) Satellite L20 Maintenance Manual(960-Q01)
Page 188 Replacement Procedures 5. Pull up and remove the cover assembly from the base assembly. Cover assembly Base assembly Figure 4-19 Removing the cover assembly Satellite L20 Maintenance Manual(960-Q01)
Page 189 Replacement Procedures Installing the cover assembly The following describes the procedure for installing the cover assembly (See Figure 4-21 to 4-24). 1. Install the cover assembly to the base assembly. NOTE: Be careful not to catch the cables between cover assembly and base assembly. 2.
Page 190: Touch Pad
Replacement Procedures 4.12 Touch pad Removing the touch pad The following describes the procedure for removing the touch pad (See Figure 4-31). 1. Peel off the glass tape and disconnect the touch pad flat cable from the connector on the touch pad and peel the al foil . 2.
Page 191 Replacement Procedures Installing the touch pad The following describes the procedure for installing the touch pad (See Figure 4-31). 1. Peel off the separator covering on the sensor portion of a new touch pad. NOTE: Do not reuse the touch pad so that it can not be used after peeling off from the computer.
Page 192: System Board
Replacement Procedures 4.20 System board CAUTION: 1. When handling the system board, always hold by the edges. Do not touch the printed circuit face. 2. If replacing with a new system board, execute the subtest01 Initial configuration in section 3.3 “Setting of the hardware configuration”. Also update with the latest BIOS as described in Appendix G “BIOS Rewrite Procedures”...
Page 193 Replacement Procedures Installing the system board The following describes the procedure for installing the system board (See Figure 4-41). 1. Secure the system board with the following screws. • M2.5×4.0 BIND screw 2. Connect the speaker cable to the connector CN 11 on the system board. Satellite L20 Maintenance Manual(960-Q01)
Page 194: Cpu
Replacement Procedures 4.21 CPU Removing the CPU The following describes the procedure for removing the CPU heat sink (See Figure 4-44). 1. Disconnect the Heat sink cable from the connector CN15 on the system board 2. Remove the following screws securing the heat sink holder along 1 to 7. •...
Page 195 Replacement Procedures 4. Unlock the CPU by rotating the cam on the CPU socket 120 degrees to the counterclockwise with a flat-blade screwdriver. 5. Remove the CPU. Figure 4-23 Removing the CPU Installing the CPU&VGA heat sink The following describes the procedure for installing the CPU (See Figure 4-44to 4-46). 1.
Page 196 Replacement Procedures NOTE: Apply the silicon grease enough to cover the chip surface using the special applicator. Figure 4-24 Applying silicon grease 5. Install the CPU&VGA heat sink and heat sink holder and secure them with the following screws along 1 to 7. M2.5×4.0 BIND screw 6.
Page 197 Replacement Procedures LCD unit / FL inverter CAUTION: When replacing a LCD, it is required that SVP parameter is set. Update with the latest EC/KBC as described in Appendix H “EC/KBC Rewrite Procedures”. Removing the LCD unit / FL inverter The following describes the procedure for removing the LCD unit and FL inverter (See Figure 4-52 to 4-55).
Page 198 Replacement Procedures 4. Pull out one insulator and peel off the other one adhered to the FL inverter. 5. Disconnect the LCD harnesses from the connectors CN1 on the FL inverter. 6. Disconnect the HV harnesses from the connectors CN2 on the FL inverter. 7.
Page 199 Replacement Procedures 8. Remove the following screws securing the LCD unit. • M2.5x4.0 BINK HEAD screw 9. With the bottom edge of the LCD unit on the display cover, lift only the top edge of the LCD unit. After peeling off the CONDUTIVE tape, disconnect the LCD harness from the connector on the back of the LCD.
Page 200 Replacement Procedures 11. Remove the following screws securing the LCD support (LCD unit side) and remove the LCD supports from the LCD unit. • M2.0x3.0 BINK screw LCD support LCD support M2.0x3.0 BINK M2.0x3.0 BINK Figure 4-28 Removing the LCD supports Satellite L20 Maintenance Manual(960-Q01)
Page 201 Replacement Procedures Installing the LCD unit/FL Inverter The following describes the procedure for installing the LCD unit and FL inverter (See Figure 4-52 to 4-55). 1. Install the LCD supports (LCD unit side) to the LCD and secure them with the following screws.
Page 202: Appendices
Appendices Satellite L20 Maintenance Manual(960-Q01) App-i...
Page 203 App-ii Satellite L20 Maintenance Manual(960-Q01)
Page 204 Appendix Contents Appendix A Handling the LCD Module................. A-1 Appendix B Board Layout....................B-1 System Board Front View................B-1 System Board Back View ................B-3 LED Board ....................B-5 Modem Board ....................B-6 Appendix C Pin Assignment.................... C-1 System Board CN9 RJ11+RJ45 Connector (18-PI ) ............
Page 205 C.19 J2 Memory connector 1 (200-PIN) ............C-13 C.20 CN19 USB I/F connector (4-PIN) .............. C-16 C.21 CN20 External MIC Connector (8-PIN)............ C-16 C.22 CN21 Headphone OUT Connector (8-PIN) ..........C-16 C.23 CN22 ODD I/F Connector (50-PIN)............C-17 C.24 CN24 Modem Board connector (10-PIN)..........C-18 C.25 CN25 MINI-PCI connector (124-PIN) ............
Page 206 E 18 Turkish (TR) Keyboard ................E-9 E 19 Japanese (JP) Keyboard................E-10 E 20 Swiss-German(SL) Keyboard ..............E-10 Satellite L20 Maintenance Manual(960-Q01) App-v...
Page 207 Appendix F Wiring Diagrams..................F-1 RGB Monitor ID Wraparound Connector ............ F-1 LAN Loopbak Connector ................F-1 Appendix G BIOS Rewrite Procedures ................G-1 Appendix H EC/KBC Rewrite Procedures ..............H-1 App-vi Satellite L20 Maintenance Manual(960-Q01)
Page 208: Appendix A Handling The Lcd Module
Appendix A Appendix A Handling the LCD Module Precautions for handling the LCD module The LCD module can be easily damaged during assembly or disassembly. Observe the following precautions when handling the LCD module: 1. When installing the LCD module in the LCD cover, be sure to seat it so that it is properly aligned and maximum visibility of the display is maintained.
Page 209 Handling the LCD Module 3. If the panel’s surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty, try breathing on the surface to create a light condensate and wipe it again. If the surface is very dirty, we recommend a CRT cleaning agent. Apply the agent to a cloth and then wipe the panel’s surface.
Page 210 Handling the LCD Module 5. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which could cause breakage or cracks. 6. CMOS-LSI circuits are used in the module, so guard against damage from electrostatic discharge.
Page 211 Handling the LCD Module 7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods. 8. Do not store the module at temperatures below specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 9.
Page 212 Handling the LCD Module 10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxide). These materials can release gas that can damage the panel’s polarization. Satellite L20 Maintenance Manual (960-Q01)
Page 213 Handling the LCD Module Satellite L20 Maintenance Manual(960-Q01)
Page 214: Appendix B Board Layout
Appendix B Appendix B Board Layout System Board Front View Figure B-1 System board layout (front) Satellite L10 Maintenance Manual (960-Q01)
Page 215 Board Layout Table B-1 System board ICs and connectors (front) Mark Number Name LED Board Connector LCD I/F Connector Keyboard I/F Connector Touch Pad Connector EC Debug Port Connector (reserved) System Speaker Connector PC Card Connector Satellite L10 Maintenance Manual(960-Q01)
Page 216: System Board Back View
Board Layout System Board Back View (c) (d) Figure B-2 System board layout (Back) Satellite L10 Maintenance Manual(960-Q01)
Page 217 Board Layout Table B-2 System board ICs and connectors (back) Mark Number Name CN10 DC Power Jack S-VIDEO OUT connector CN11 USB Connector Phone Signal Connector RJ11 + RJ45 Connector CN13 CRT Connector CN14 System Battery Connector CN15 CPU Fan Connector CN18 USB Connector CPU Socket...
Page 218: Led Board
Board Layout LED board <Front layout> <Back layout> Figure B-3 LED board layout Table B-3 LED board connectors Mark Number Name LED Board Connector Satellite L10 Maintenance Manual(960-Q01)
Page 219: Modem Board
Board Layout Modem board <Front layout> <Back layout> Figure B-4 Modem board layout Table B-4 Modem board connectors Mark Number Name Phone Signal Connector Modem I/F Connector Touch Pad Board Satellite L10 Maintenance Manual(960-Q01)
Page 220 Board Layout <Front layout> <Back layout> Table B-5 Touch pad board connectors Mark Number Name Lift key Right key Satellite L10 Maintenance Manual(960-Q01)
Page 221: Appendix C Pin Assignments
Appendix C Appendix C Pin Assignment System Board C.1 CN9 RJ11+RJ45 Connector (18-PIN) Table C-11 RJ11+RJ45 connector (18-PIN) PIN No. Signal name PIN No. Signal name 100MBPS# N.C. RJ45_MX3- RJ45_MX3+ RJ45_MX1- RJ45_MX2- RJ45_MX2+ RJ45_MX1+ RJ45_MX0- RJ45_MX0+ N.C. TIP_C RING_C ACT# C.2 CN12 Phone Signal Connector (2-PIN) Table C-22 Phone Signal connector (2-PIN) PIN No.
Page 222 Pin Assignment C.3 CN1 LED Board Connector (14-PIN) Table C-3 LED Board connector (14-PIN) PIN No. Signal name PIN No. Signal name BT4# NBSWON# BT3# NUMLED BT2# CAPSLED BT1# IDE_LED N.C. EMAIL_LED Satellite L10 Maintenance Manual...
Page 223: Cn2 Lcd I/F Connector (40-Pin
Pin Assignment C.4 CN2 LCD I/F Connector (40-PIN) Table C-43 LCD I/F connector (40-PIN) PIN No. Signal name PIN No. Signal name LCDID2 LCD3V LCD3V LCDID1 LCDID0 DISPON VADJ INVCC0 INVCC0 TXUOUT1+ TXUOUT1- TXUOUT2+ TXUOUT2- PHL_DATA PHL_CLK TXLCLKOUT+ TXLCLKOUT- TXLOUT0+ TXLOUT0- TXLOUT1+ TXLOUT1-...
Page 224: Cn3 Keyboard I/F Connector (25-Pin
Pin Assignment C.5 CN3 Keyboard I/F Connector (25-PIN) Table C-5 Keyboard I/F connector (25-PIN) PIN No. Signal name PIN No. Signal name MY10 MY11 MY12 MY13 MY14 MY15 N.C. C.6 CN4 Touch PAD I/F Connector (6-PIN) Table C-6 Pad I/F connector (6-PIN) PIN No.
Page 225: Cn5 Pc Card I/F Connector (68-Pin
Pin Assignment C.7 CN5 PC Card I/F Connector (68-PIN) Table C-7 PC Card I/F connector (68-PIN) (1/2) PIN No. Signal name PIN No. Signal name A_CAD0 A_CAD1 A_CAD3 A_CAD5 A_CAD7 A_CC/BE0# A_CAD9 A_CAD11 A_CAD12 A_CAD14 A_CC/BE1# A_CPAR A_CPERR# A_CGNT# A_CINT# VCCCB AVPP A_CCLK1...
Page 226: Cn23 Rtc Battery Connector (2-Pin
Pin Assignment Table C-7 PC card I/F connector (68-PIN) (2/2) PIN No. Signal name PIN No. Signal name A_CC/BE3# A_CAUDIO A_CSTSCHG A_CAD28 I/O - A_CAD30 A_CAD31 I/O - A_CCD2# C.8 CN23 RTC Battery Connector (2-PIN) Table C-8 RTC battery connector (2-PIN) PIN No.
Page 227: Cn10 Dc In Connector (4-Pin
Pin Assignment C.11 CN10 DC IN Connector (4-PIN) Table C-4 DC IN connector (4-PIN) PIN No. Signal name PIN No. Signal name C.12 CN11 USB I/F Connector (4-PIN) Table C-5 USB I/F connector (4-PIN) PIN No. Signal name PIN No. Signal name USB5POWER BUSBP3-...
Page 228: Cn14 System Battery Connector (5-Pin
Pin Assignment C.14 CN14 System Battery Connector (5-PIN) Table C-64 USB I/F connector (4-PIN) PIN No. Signal name PIN No. Signal name MBDATA MBCLK TEMP_MBAT MBAT+ C.15 CN15 CPU Fan Connector (3-PIN) Table C-75 CPU FAN connector (3-PIN) PIN No. Signal name PIN No.
Page 229: Cn16 Hdd I/F Connector (44-Pin
Pin Assignment C.16 CN16 HDD I/F Connector (44-PIN) Table C-16 HDD I/F connector (44-PIN) PIN No. Signal name PIN No. Signal name N.C. HDLED# PDCS3# PDCS1# PDA2 PDA0 PDIAG PDA1 N.C. IRQ14 PDDACK# PSEL PHDRDY PDIOR# PDIOW# PDDREQ N.C. PDD15 PDD0 PDD14 PDD1...
Page 230: J1 Memory Connector 0 (200-Pin
Pin Assignment C.18 J1 Memory Connector 0 (200-PIN) Table C-18 Memory connector 0 (200-PIN) (1/3) PIN No. Signal name PIN No. Signal name DDR_VREF MDQ50 MDQ55 MDQ51 MDQ54 M_DM6 M_DQS#6 M_DQS6 MDQ53 MDQ49 MDQ52 MDQ48 MDQ12 MDQ8 MDQ13 MDQ9 M_DM1 M_DQS#1 M_CLKOUT1 M_DQS1...
Page 231: Pin Assignment
Pin Assignment Table C-18 Memory connector 0 (200-PIN) (2/3) PIN No. Signal name PIN No. Signal name MDQ21 MDQ16 M_DM2 M_DQS#2 M_DQS2 MDQ18 MDQ19 MDQ23 MDQ22 M_CKE0 M_CKE1 +1.8VSUS +1.8VSUS N.C. MA17 MA14 +1.8VSUS +1.8VSUS MA12 MA11 +1.8VSUS +1.8VSUS +1.8VSUS +1.8VSUS MA10 MA16...
Page 232 Pin Assignment Table C-18 Memory connector 0 (200-PIN) (3/3) PIN No. Signal name PIN No. Signal name MDQ27 MDQ26 MDQ31 MDQ32 MDQ33 MDQ37 MDQ36 M_DQS#4 M_DM4 M_DQS4 MDQ39 MDQ38 MDQ35 MDQ34 MDQ41 MDQ44 MDQ40 MDQ45 M_CLKOUT3 M_CLKOUT3# M_DQS#5 M_DQS5 M_DM5 MDQ43 MDQ46 MDQ47...
Page 233: J2 Memory Connector 1 (200-Pin
Pin Assignment C.19 J2 Memory connector 1 (200-PIN) Table C-19 Memory connector 1 (200-PIN) (1/3) PIN No. Signal name PIN No. Signal name DDR_VREF MDQ50 MDQ55 MDQ51 MDQ54 M_DM6 M_DQS#6 M_DQS6 MDQ53 MDQ49 MDQ52 MDQ48 MDQ12 MDQ8 MDQ13 MDQ9 M_DM1 M_DQS#1 M_CLKOUT1 M_DQS1...
Page 234: Pin Assignment
Pin Assignment Table C-19 Memory connector 1 (200-PIN) (2/3) PIN No. Signal name PIN No. Signal name MDQ21 MDQ16 M_DM2 M_DQS#2 M_DQS2 MDQ18 MDQ19 MDQ23 MDQ22 M_CKE0 M_CKE1 +1.8VSUS +1.8VSUS N.C. MA17 MA14 +1.8VSUS +1.8VSUS MA12 MA11 +1.8VSUS +1.8VSUS +1.8VSUS +1.8VSUS MA10 MA16...
Page 235 Pin Assignment able C-19 Memory connector 1 (200-PIN) (3/3) PIN No. Signal name PIN No. Signal name MDQ27 MDQ26 MDQ31 MDQ32 MDQ33 MDQ37 MDQ36 M_DQS#4 M_DM4 M_DQS4 MDQ39 MDQ38 MDQ35 MDQ34 MDQ41 MDQ44 MDQ40 MDQ45 M_CLKOUT3 M_CLKOUT3# M_DQS#5 M_DQS5 M_DM5 MDQ43 MDQ46 MDQ47...
Page 236: Cn19 Usb I/F Connector (4-Pin
Pin Assignment C.20 CN19 USB I/F connector (4-PIN) Table C- USB I/F connector (4-PIN) PIN No. Signal name PIN No. Signal name USB2POWER BUSBP0- BUSBP0+ C.21 CN20 External MIC Connector (8-PIN) 21 External MIC Table C- connector ( -PIN) PIN No. Signal name PIN No.
Page 237: Cn22 Odd I/F Connector (50-Pin
Pin Assignment C.23 CN22 ODD I/F Connector (50-PIN) 23 O Table C- DD I/F connector (50-PIN) PIN No. Signal name PIN No. Signal name N.C. N.C. N.C. -RST_RBAY0 SDD8 SDD7 SDD9 SDD6 SDD10 SDD5 SDD11 SDD4 SDD12 SDD3 SDD13 SDD2 SDD14 SDD1 SDD15...
Page 238 Pin Assignment C.24 CN24 Modem Board connector (10-PIN) Table C-24 Modem Board connector (10-PIN) PIN No. Signal name PIN No. Signal name PWRCLKN1 PWRCLKP1 N.C. DIB_DATAP DIB_DATAN C-18 Satellite L10 Maintenance Manual...
Page 239: Cn25 Mini-Pci Connector (124-Pin
Pin Assignment C.25 CN25 MINI-PCI connector (124-PIN) Table C-25 MINI-PCI connector (124-PIN) (1/2) PIN No. Signal name PIN No. Signal name N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. RF_EN N.C. N.C. N.C. INTC# INTB# N.C. N.C.
Page 240 Pin Assignment Table C-25 MINI-PCI connector (124-PIN) (2/2) PIN No. Signal name PIN No. Signal name FRAME# CLKRUN# TRDY# SERR# STOP# PERR# DEVSEL# CBE1# AD14 AD15 AD13 AD12 AD11 AD10 CBE0# N.C. N.C. SERIRQ RLAD0. N.C. RLAD1 RLDRQ# RLAD2 SDIN1_MINI RLAD3 RKBSMI# RLFRAME#...
Page 241 Pin Assignment LED Board C.26 CN1 LED Board connector (14-PIN) Table C-26 LED Board connector (14-PIN) PIN No. Signal name PIN No. Signal name BT4# NBSWON# BT3# NUMLED BT2# CAPSLED BT1# IDE_LED N.C. N.C. Satellite L10 Maintenance Manual C-21...
Page 242: Cn1 Modem Signal Connector (10-Pin
Pin Assignment Modem Board C.27 CN1 Modem Signal connector (10-PIN) Table C-27 Modem Signal connector (10-PIN) PIN No. Signal name PIN No. Signal name PWRCLKN PWRCLKP N.C. DIB_DATAP DIB_DATAN C.28 MJ2 Phone Signal connector (2-PIN) Table C-28 Phone Signal connector (2-PIN) PIN No.
Page 243: Appendix D Display Codes
Appendix. D Appendix D Display Codes Display Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Code set 1 Code set 2 Keytop Note Make Break Make Break ‘ ~ 7 & BkSp Satellite L20 Maintenance Manual(960-Q01)
Page 244 Display codes Table D-1 Scan codes (set 1 and set 2) (2/4) Code set 1 Code set 2 Keytop Note Make Break Make Break Caps Lock ‘ “ Enter Shift (L) No.102 , < . > Shift (R) Satellite L20 Maintenance Manual(960-Q01))
Page 245 Display codes Table D-1 Scan codes (set 1 and set 2) (3/4) Code set 1 Code set 2 Keytop Note Make Break Make Break Ctrl Alt (L) Space ALT (R) ← Home ↑ ↓ PgUp PgDn → Satellite L20 Maintenance Manual(960-Q01)
Page 246 Display codes Table D-1 Scan codes (set 1 and set 2) (4/4) Code set 1 Code set 2 Keytop Note Make Break Make Break PrintSc Pause — — — — Notes: 1. * Scan codes differ by mode. 2. * Scan codes differ by overlay function. 3.
Page 247 Display codes Table D-2 Scan codes with left Shift key Code set 1 Code set 2 Make Break Make Break E0 AA E0 35 E0 B5 E0 2A E0 F0 12 E0 4A E0 F0 4A E0 12 E0 AA E0 52 E0 D2 E0 2A E0 F0 12 E0 70 E0 F0 70 E0 12 E0 AA E0 53 E0 D3 E0 2A E0 F0...
Page 248 Display codes Table D-3 Scan codes in Numlock mode Code set 1 Code set 2 Make Break Make Break E0 2A E0 52 E0 D2 E0 AA E0 12 70 E0 F0 E0 F0 12 E0 2A E0 53 E0 D3 E0 AA E0 12 71 E0 F0 E0 F0 12...
Page 249 Display codes Table D-5 Scan codes in overlay mode Code set 1 Code set 2 Keytop Make Break Make Break (–) Table D-6 No.124 key scan code Code set 1 Code set 2 Shift Make Break Make Break Prt Sc Common Ctrl + Shift +...
Page 250 Display codes Table D-7 No.126 key scan code Shift Code set 1 Code set 2 Make Make Pause Common* E1 1D E1 F0 Ctrl* E0 46 7E E0 F0 *: This key generates only make codes. Satellite L20 Maintenance Manual(960-Q01))
Page 251: United States (Us) Keyboard
Appendix E Key Layout Appendix E Keyboard Layout United States (US) Keyboard Figure E-1 US Keyboard layout United Kingdom (UK) Keyboard Figure E-2 UK Keyboard layout Satellite L20 Maintenance Manual (960-Q01)
Page 252: Arabia (Ar) Keyboard
Keyboard Layout Arabia (AR) Keyboard Figure E-3 AR Keyboard layout Belgium (BB) Keyboard Figure E-4 BB Keyboard layout Satellite L20 Maintenance Manual(960-Q01)
Page 253: Czech (Cz) Keyboard
Keyboard Layout Appendices Czech (CZ) Keyboard FigureE-5 CZ Keyboard layout German (GR) Keyboard Figure E-6 GR Keyboard layout Satellite L20 Maintenance Manual (960-Q01)
Page 254: Danish (Dk) Keyboard
Keyboard Layout Danish (DK) Keyboard Figure E-7 DK Keyboard layout Spanish (SP) Keyboard Figure E-8 SP Keyboard layout Satellite L20 Maintenance Manual(960-Q01)
Page 255: French (Fr) Keyboard
Keyboard Layout Appendices French (FR) Keyboard Figure E-9 FR Keyboard layout E.10 Hungary(HU) Keyboard Figure E-10 HUR Keyboard layout Satellite L20 Maintenance Manual (960-Q01)
Page 256: Italian (It) Keyboard
Keyboard Layout E.11 Italian (IT) Keyboard Figure E-11 IT Keyboard layout E.12 Korean (KR) Keyboard Figure E-12 KR Keyboard layout Satellite L20 Maintenance Manual(960-Q01)
Page 257: Norwegian (No) Keyboard
Keyboard Layout Appendices E.13 Norwegian (NO) Keyboard Figure E-13 NO Keyboard layout E.14 Portuguese (PT) Keyboard Figure E-14 PT Keyboard layout Satellite L20 Maintenance Manual (960-Q01)
Page 258: Traditional Chinese (Tc) Keyboard
Keyboard Layout E.15 Traditional Chinese (TC) Keyboard Figure E-15 TC Keyboard layout E.16 Swedish (SW) Keyboard Figure E-16 SW Keyboard layout Satellite L20 Maintenance Manual(960-Q01)
Page 259: Russian (Ru) Keyboard
Keyboard Layout Appendices E.17 Russian (RU) Keyboard Figure E-17 RU Keyboard layout E.18 Turkish (TR) Keyboard Figure E-18 TR Keyboard layout Satellite L20 Maintenance Manual (960-Q01)
Page 260 Keyboard Layout E.19 Japanese (JP) Keyboard Figure E-19 JP Keyboard layout E.20 Swiss-German(SL) Keyboard Figure E-20 SL Keyboard layout E-10 Satellite L20 Maintenance Manual(960-Q01)
Page 261: Wiring Diagrams
Appendix F Appendix F Wiring Diagrams RGB Monitor ID Wraparound connector (1) RED (2) GREEN GREEN (2) (3) BLUE BLUE (4) NC (5) GND (6) GND (7) GND (8) GND (9) 5V (10) GND (10) (11) NC (11) (12) SDA (12) (13) HSYNC HSYNC (13)
Page 262: Appendix F Wiring Diagrams
Wiring Diagrams Satellite L20 Maintenance Manua(960-Q01)
Page 263: Appendix Gbios Rewrite Procedures
Appendix G Appendix G BIOS Rewrite Procedures This Appendix explains how to rewrite the system BIOS program when you update the system BIOS. Tools To rewrite the BIOS, you need the following tool: BIOS/EC/KBC rewriting disk USB doggle Rewriting the BIOS 1.
Page 264: Appendix Hec/Kbc Rewrite Procedures
Appendix H Appendix H EC/KBC Rewrite Procedures Same as BIOS rewrite Procedures, please refer appendix G Satellite L20 Maintenance Manual(960-Q01)

Toshiba Satellite L20 Series Maintenance Manual

Table of Contents

Chapter 1 Hardware Overview

Table of Contents

Chapter 2 Troubleshooting Procedures

Chapter 2 Troubleshooting

Chapter 3 Test Program for Field

Chapter 3 Diagnostic Programs

Chapter 4 Replacement Procedures

Table of Contents

Appendix

Appendix A Handling the LCD Module

Appendix Contents

Appendix B Board Layout

Appendix C Pin Assignment

Appendix C Pin Assignments

Appendix D Display Codes

Appendix D Keyboard Scan/Character Codes

Appendix E Key Layout

Appendix F Wiring Diagrams

Appendix Gbios Rewrite Procedures

Appendix Hec/Kbc Rewrite Procedures

Quick Links

Chapters

Troubleshooting

Related Manuals for Toshiba Satellite L20 Series

Summary of Contents for Toshiba Satellite L20 Series

Table of Contents