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Toshiba NB300 Maintenance Manual
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Toshiba NB300 Maintenance Manual

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Toshiba Personal Computer
NB300
Maintenance Manual
TOSHIBA CORPORATION
[CONFIDENTIAL]

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Summary of Contents for Toshiba NB300

  • Page 1 Toshiba Personal Computer NB300 Maintenance Manual TOSHIBA CORPORATION [CONFIDENTIAL]...
  • Page 2 © 2009 by Toshiba Corporation. All rights reserved. Under the copyright laws, this manual cannot be reproduced in any form without the prior written permission of Toshiba. No patent liability is assumed with respect to the use of the information contained herein.
  • 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 The manual is divided into the following parts: Chapter 1 Hardware Overview describes the NB300 SERIES MAINTENANCE MANUAL Series 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 Text that you are instructed to type in is shown in the boldface type below: DISKCOPY A: B: The display Text generated by the computer that appears on its display is presented in the typeface below: Format complete System transferred [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...

  • Page 6: Table Of Contents

    2.12 2 in 1 card Troubleshooting ....................31 2-13 HDD/SSD troubleshooting process..................33 2-14 CRT failure troubleshooting process .................35 2-15 LAN troubleshooting process………………………….....……………………37 2-16 MIC troubleshooting process ………………………… ....……………………39 2-17 3D sensor troubleshooting process……………………….....……………………….41 2-18 3G troubleshooting process……………………………… ....……………………43 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 7 3.20 Dynabook Logo set……………………………………………….………………...……..34 3.21 TP type RW Test…….…………………………………………….……………………...37 Chapter 4 4.1 General ..........................4-1 Safety Precautions......................4-2 Before You Begin......................4-4 Disassembly Procedures ....................4-5 Assembly Procedures ....................... 4-5 Tools and Equipment ....................... 4-6 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 8 Removing the Logic Upper Assembly ..............4-26 Installing the Logic Upper Assembly ............... 4-31 4.10 Touch Pad Board......................4-32 Removing the touch pad board.................. 4-32 Installing the Touch Pad board ................. 4-33 [CONFIDENTIAL] viii NB300 SERIES MAINTENANCE MANUAL...
  • Page 9 Figure 1-1A ID Parts Description Placement Part A ..............1-5 Figure 1-2 S-ATA HDD ......................1-9 Figure 2-1 Troubleshooting flowchart (1/2)………………………… ..…………………….5 Figure 2-1 Troubleshooting flowchart (2/2)………………………… ..…………………….6 Figure 2-2 Power Supply Troubleshooting Process…………… ..………………………….9 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 10 Figure 4.12 Remove three screws................... 4-20 Figure 4.13 Removing the hinge cover................... 4-21 Figure 4.14 Remove two screws..................... 4-21 Figure 4.15 Removing the keyboard cover................4-22 Figure 4.16 Pry up the keyboard..................... 4-22 Figure 4.17 Disconnect the cable.................... 4-23 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 11 Figure 4.45 Removing the bezel from the hinge wall............. 4-46 Figure 4.46 Removing the bezel ..................... 4-47 Figure 4.47 Pull out cables and antennas................4-49 Figure 4.48 Removing the screws from the LCD module ............. 4-50 Figure 4.49 Removing the LCD Hinge Assembly..............4-51 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 12 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 Series Screw Torque List..................F-1 Appendix G Reliability......................G-1 [CONFIDENTIAL] NB300 SERIES MAINTENANCE MANUAL...
  • Page 13 Chapter 1 Hardware Overview...
  • Page 14 1 Hardware Overview Chapter 1 Contents Features ........................1-1 2.5-inch HDD ......................1-9 Power Supply ....................... 1-10 Batteries........................ 1-12 1.4.1 Main Battery ..................1-12 1.4.2 Battery Charging Control ..............1-12 1.4.3 RTC Battery..................1-13 NB300 Maintenance Manual 1-ii...
  • Page 15 1 Hardware Overview Figures Figure 1-1A ID Parts Description Placement Part A............1-5 Figure 1-2 S-ATA HDD ....................1-9 Tables Table 1-1 HDD Specifications ..................1-9 Table 1-2 Quick/Normal Charging Time ..............1-12 NB300 Maintenance Manual 1-iii...

  • Page 17: Features

    Error! Style not defined. Error! Style not defined. 1 Hardware Overview Features ® The Toshiba NB300 is a small-size PC notebook equipped with an Intel Atom Processor, providing high-speed processing capabilities and advanced features. The computer employs a lithium ion battery that allows it to be battery-operated for long periods of time. The display uses 10.1-inch SD LCD panel.
  • Page 18 (mode 1-4)  Bridge Media Slot This slot allows you to insert SD/SDHC, MiniSD/ MicroSD (through adapter) and MMC memory cards. This model does not support CF cards, SmartMedia cards and Memory Sticks. NB300 Maintenance Manual...
  • Page 19 The 3G module employs a PCI Express Mini Card. It enables computer users to have mobile access to the internet or to a corporate network. The computer is equipped with either a Ericsson F3607gw model (which supports HSPA) or with a Sierra Module Gobi2000 model (which supports EVDO). NB300 Maintenance Manual...
  • Page 20 When implemented, Bluetooth provides wireless communication in a small space. This module is Version 2.1 + EDR (Antenna on Module type), basically Toshiba stack support it. NB300 Maintenance Manual...

  • Page 21: Figure 1-1A Id Parts Description Placement Part A

    Num lock: Green Scroll lock: Green WiMax/3G: Blue Wireless / RF status: Amber Bridge media: Green HDD/ODD/eSATA: Green Main Battery: Green/Amber/Amber<Blink> POWER:Green/Amber<Blink> DC-IN: Green BATTERY HDD DOOR RAM DOOR Speaker Speaker Figure 1-1A ID Parts Description Placement Part A NB300 Maintenance Manual...
  • Page 22 MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC. MAY BE USED BY OR DISCLOSED TO ANY THIRD PARTY WITHOUT PRIOR WRITTEN CONSENT OF COMPAL ELECTRONICS, INC. Date: Date: Date: Tuesday, September 29, 2009 Tuesday, September 29, 2009 Tuesday, September 29, 2009 Sheet Sheet Sheet NB300 Maintenance Manual...
  • Page 23  Audio volume output control  Battery scope report and control  Power switch control  Internal Keyboard country selection  Graphics Controller  Intel Pineview as integrated graphics solution  TVAP and Smart External Monitor Support NB300 Maintenance Manual...
  • Page 24  Internal Microphone (MIC with echo cancellation)  Volume control: Digital control, Hot keys (Fn+3, Fn+4)  Microsoft inbox audio driver support  Software EQ support  Wireless LAN Controller  Atheros 802.11 bg (HB95 1x1)  WPS supported NB300 Maintenance Manual...

  • Page 25: Inch Hdd

    Table 1-1 HDD Specifications Specifications Item Capacity (GB) 160 GB 250 GB 320G Rotational Speed (RPM) 5400 RPM 5400 RPM 5400 RPM Height 9.5 mm 9.5 mm 9.5 mm User Data Sectors 312,581,808 488,397,168 625,142,448 Bytes / Sector NB300 Maintenance Manual...

  • Page 26: Power Supply

     Turns on the Power LED (in Green).  Battery indicator (in Green or Amber).  DC-IN indicator (in Green) 5. External interface  Performs communication through the I2C bus (via the internal EC/KBC).  Transfers the power supply operation mode. NB300 Maintenance Manual 1-10...
  • Page 27  Monitors the voltage output to the system block (load/logic circuit side).  Monitors the voltage, over voltage, input/output current of the battery pack.  Monitors the internal temperature of the battery pack.  Monitors the supply voltage from the AC adapter. NB300 Maintenance Manual 1-11...

  • Page 28: Batteries

    Table 1-2 Quick/Normal Charging Time State Charge Time 3 Cell About 4 hours Off-State Charge 6 Cell About 6 hours On-State Charge 3/6 Cell About 12 hours NB300 Maintenance Manual 1-12...

  • Page 29: Rtc Battery

    1. The current in the battery charging circuit drops below the predetermined value. 2. The charging time exceeds the fixed limit. 1.4.3 RTC Battery The RTC battery provides power to keep the current date, time and other system information in memory while the computer is turned off. NB300 Maintenance Manual 1-13...
  • Page 30 Chapter 2 Troubleshooting Procedures...

  • Page 32: Troubleshooting Introduction

    2.7 Touch pad Troubleshooting .....................21 2.8 Speaker Troubleshooting ....................23 Wireless LAN Troubleshooting..................25 2.10 Camera Troubleshooting....................27 2.11 Bluetooth Troubleshooting ..................29 2.12 2in1 card Troubleshooting ...................31 2.13 HDD/SSD Troubleshooting ..................33 2.14 CRT Troubleshooting ....................35 2.15 LAN Troubleshooting....................37 2.25 3G Troubleshooting ....................43 NB300/305 Series Maintenance Manual...

  • Page 33: Troubleshooting Introduction

    Chapter 2 describes how to determine if a Field Replaceable Unit (FRU) in the computer is causing the computer to malfunction. The FRUs covered are: 1. Display 7. Wireless LAN 13. 2 in 1 card 2. HDD/SSD 8. Camera 14. CRT NB300/305 Series Maintenance Manual...

  • Page 34: Troubleshooting Flowchart

    If the problem is unspecified, use the flowchart in Figure 2-1 as a guide for determining which troubleshooting procedures to execute. Before performing any troubleshooting procedures, verify the following:  Ask the user if a password is registered, if it is, ask him or her to enter the password. NB300/305 Series Maintenance Manual...
  • Page 35 2 Troubleshooting Procedures  Verify with the customer that Toshiba Windows XP/Win7/Linux is installed on the hard disk. Operating systems that were not preinstalled by Toshiba can cause the computer to malfunction.  Make sure all optional equipment is removed from the computer.

  • Page 36: Figure 2-1 Troubleshooting Flowchart (1/2)

    Is T o s h ib a W in d o w s o r L in u x P e rfo rm d ia g n o s tic s b e in g lo a d e d ? p ro g ra m . Y es Figure 2-1 Troubleshooting flowchart (1/2) NB300/305 Series Maintenance Manual...

  • Page 37: Figure 2-1 Troubleshooting Flowchart (2/2)

    Allow each test to perform automatically After confirming which diagnostics test has detected Is an error detected by any of the an error, perform the diagnostics tests? appropriate procedure as outlined below. System is normal Figure 2-1 Troubleshooting flowchart (2/2) NB300/305 Series Maintenance Manual...
  • Page 38 4. If an error is detected by the TouchPad test, perform the TouchPad Troubleshooting procedures in Section 2.7 5. If an error is detected by the audio test, perform the Speaker Troubleshooting procedures in Section 2.8 NB300/305 Series Maintenance Manual...
  • Page 39 4. If an error is detected when using the Bluetooth, perform the Bluetooth Troubleshooting procedures in Section 2.11 5. If an error is detected when using the MIC, perform the MIC troubleshooting procedures in Section 2.16 NB300/305 Series Maintenance Manual...

  • Page 40: Power Supply Troubleshooting

    E N D Figure 2-2 Power Supply Troubleshooting Process The power supply controls many functions and components. To determine if the power supply is functioning properly, start with Procedure 1 and continue with the other Procedures NB300/305 Series Maintenance Manual...
  • Page 41 The following LEDS indicate the power supply status: Battery LED DC-IN LED The power supply controller displays the power supply status through the Battery and the DC- IN LEDS as listed in the tables below. Table 2-1 Battery LED NB300/305 Series Maintenance Manual...
  • Page 42 A faulty adaptor may not supply power or may not charge the battery. Perform Check 1. Check 1 Connect a new AC adaptor. If the problem is not resolved, go to Check 2. Check 2 Insert a new battery. If the problem is still not resolved, go to Procedure 3. NB300/305 Series Maintenance Manual...

  • Page 43: Procedure 3 Power Supply Connection Check

     If the battery LED does not light, go to Check 6. Check 6 Make sure the battery pack is installed in the computer correctly. If the battery is properly installed and the battery LED still does not light, go to Procedure 4. NB300/305 Series Maintenance Manual...

  • Page 44: Procedure 4 Diagnostic Check

    Make sure that the battery cable is firmly connected to the system board. If it is connected firmly, go to Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 45: Display Troubleshooting

    ( P ro c e d u r e 3 ) R e p la c e s y s te m b o a rd E N D Figure 2-3 Display troubleshooting process NB300/305 Series Maintenance Manual...

  • Page 46: Procedure 1 External Display Check

    Refer to Chapter 3, Tests and Diagnostics for details. If an error is detected, go to Procedure 3. If an error is not detected, the display is functioning properly. NB300/305 Series Maintenance Manual...
  • Page 47 Check 3 Replace the LCD cable with a new one and test display again. If the problem still exists, perform Check 5. Check 4 The system board may be damaged. Replace it with a new one. NB300/305 Series Maintenance Manual...

  • Page 48: Keyboard Troubleshooting

    ( P r o c e d u r e 3 ) R e p la c e s y s te m b o a r d E N D Figure 2-4 Keyboard troubleshooting process NB300/305 Series Maintenance Manual...
  • Page 49 The keyboard may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 50: External Usb Devices Troubleshooting

    R e p la c e s y s te m b o a r d ( P r o c e d u r e 2 ) E N D Figure 2-5 External USB device troubleshooting process NB300/305 Series Maintenance Manual...

  • Page 51: Procedure 1 External Device And Connection Check

    USB small board may be damaged. Go to Procedure Procedure 2 Replace system board If the error persists, the system board or USB small board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 52: Touchpad Troubleshooting

    2 Troubleshooting Procedures 2.7 Touch pad Troubleshooting START TouchPad connection check (Procedure 1) TouchPad replacement check (Procedure 2) Replace system board Figure 2-6 Touchpad troubleshooting process NB300/305 Series Maintenance Manual...
  • Page 53 The TouchPad unit or FPC may be defective or damaged. Replace each with a new one following the steps in Chapter 4. If the FDD is still not functioning properly, replace the system board with a new one following the steps in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 54: Speaker Troubleshooting

    ( P r o c e d u r e 4 ) R e p la c e s y s te m b o a r d E N D Figure 2-7 Speaker troubleshooting process NB300/305 Series Maintenance Manual...

  • Page 55: Procedure 1 Audio Source Test

    If the monaural speakers don't sound properly, the monaural speakers may be defective or damaged. Replace them with new ones. If the monaural speakers still do not work properly, try replacing in turn the audio board and system board. NB300/305 Series Maintenance Manual...

  • Page 56: Wireless Lan Troubleshooting

    Perform connector and replacement check (Procedure 2) Replace wireless LAN antenna/unit Replace system board Figure 2-8 Wireless LAN troubleshooting process Notes: W/L Antenna assemble rule as below: color of antenna assemble location White antenna Main/1 Black antenna Aux/2 NB300/305 Series Maintenance Manual...

  • Page 57: Procedure 1 Diagnostic Test

    The wireless LAN unit may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 4. Check 4 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 58: Camera Troubleshooting

    2 Troubleshooting Procedures 2.10 Camera Troubleshooting Figure 2-9 Camera troubleshooting process NB300/305 Series Maintenance Manual...
  • Page 59 The Camera board may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 60: Bluetooth Troubleshooting

    2 Troubleshooting Procedures 2.11 Bluetooth Troubleshooting Figure 2-10 Bluetooth troubleshooting process NB300/305 Series Maintenance Manual...
  • Page 61 The Bluetooth module may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 4. Check 4 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 62: In 1 Card Troubleshooting

    This section describes how to determine if the 2 IN 1 Card is functioning properly. The process is summarized in Figure 2-16. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required. Procedure 1: 2 in 1 card test NB300/305 Series Maintenance Manual...
  • Page 63 Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and check the socket. If the problem persists, the system board may be defective or damaged. Replace the system board with a new one following the steps in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 64: Hdd/Ssd Troubleshooting Process

    2 Troubleshooting Procedures 2.13 HDD/SSD Troubleshooting Figure 2-12 HDD troubleshooting process NB300/305 Series Maintenance Manual...
  • Page 65 The HDD module may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 66: Figure 2-13 Crt Troubleshooting Process

    Figure 2-13 CRT troubleshooting process To determine if the computer’s CRT port is functioning properly, perform the following procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: CRT connection check NB300/305 Series Maintenance Manual...

  • Page 67: Procedure 1 Crt Connection Check

    Try connecting a different CRT to the computer. If the replacement CRT works, the original set may be damaged. If the replacement set does not work the system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 68: Lan Troubleshooting Process

    Figure 2-14 LAN troubleshooting process To determine if the computer’s LAN port is functioning properly, perform the following procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed. Procedure 1: LAN connection check NB300/305 Series Maintenance Manual...
  • Page 69 Try connecting a different LAN cable to the computer. If the replacement LAN cable works, the original set may be damaged. If the replacement set does not work the system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 70: Mic Troubleshooting Process

    To determine if the computer’s MIC is functioning properly, perform the following procedures. Figure 2-15 outlines the process. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: Diagnostic test NB300/305 Series Maintenance Manual...
  • Page 71 The MIC line may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 3. Check 3 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 72: Sensor Troubleshooting Process

    Diagnostic test Run the functioning Program on Windows model, which will display the 3D test result. If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the 3D functioning is properly. NB300/305 Series Maintenance Manual...
  • Page 73 Procedures, and perform the following checks. Check 1 Make sure that 3D sensor test operation is correct, go to Check 2. Check 2 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...

  • Page 74: Figure 2-17 3G Troubleshooting Process

    Blue antenna Aux/2 The 3G antenna wire, 3G unit or system board may each be the source of a 3G fault. Any of these components may be damaged. To determine if the computer’s wireless LAN system is NB300/305 Series Maintenance Manual...
  • Page 75 Procedure 2: Connector and replacement check The 3G antenna, 3G unit or system board may be disconnected or damaged. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks. NB300/305 Series Maintenance Manual...
  • Page 76 3G unit may be damaged. Replace it with a new one following the instructions in Chapter 4. If the problem still exists, perform Check 4. Check 4 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. NB300/305 Series Maintenance Manual...
  • Page 77 Chapter 3 Tests and Diagnostic...
  • Page 78 3.14 RTC Test ..........................26 3.15 3D-Gsensor………..…………..………….…….……………..……………...…….....28 3.16 HDD Test ………………...…………...…….………….……………..….…………..31 3.17 Read DMI Test………………...………………………………………...…..……………...34 3.18 Write DMI Test …………….…………………………….…………….…...…………….35 3.19 Toshiba Logo set…………………………………..............37 3.20 Dynabook Logo set…………………………………………...…….………………………40 3.21 TP type RW Test…….…………………….……………………….……………………….43 3.22 EE-PROM SETTING…….…………………….……………………….……...……….….46 NB300/305 Series Maintenance Manual...

  • Page 79: The Diagnostic Test

    You will need the following equipment to perform some of the Diagnostic test programs.  The diagnostics USB memory  A formatted working diskette for the floppy disk drive test (Floppy Disk Drive Test)  A LAN loopback NB300/305 Series Maintenance Manual...

  • Page 80: Executing The Diagnostic Test

    K. LAN TEST L. RTC TEST M. 3D G-SENSOR TEST N. 1st HDD TEST O. RDMI TEST P. WDMI TEST Q. TOSHIBA LOGO SET R. DYNABOOK LOGO SET S. TP TYPE R/W TEST T. EE-PROM SETTING NB300/305 Series Maintenance Manual...
  • Page 81 3. Tests and Diagnostics The below display will show up at the beginning of T&D program If the test result passes, the following display will show up: NB300/305 Series Maintenance Manual...
  • Page 82 3. Tests and Diagnostics If an error is detected and a test fails, the following message displays: Then press any key for next actions, the below display presented. NB300/305 Series Maintenance Manual...

  • Page 83: Display Configuration

    Panel ID  HDD type & capacity (Vendor ID. Model.)  VRAM size / VGA CHIP TYPE  Battery cell (3cell; 6cell.)  Wireless type  LAN Type  Bluetooth The screen should display as below: NB300/305 Series Maintenance Manual...

  • Page 84: Audio Sound Test

    Before the Audio Test, you will see below note: Press any key, then the program will test below item: 1. Line out Left channel test 2. Line out Right channel test 3. Playing 44K wave file 4. Playing 48K wave file NB300/305 Series Maintenance Manual...
  • Page 85 3. Tests and Diagnostics If the function test fail, you can press “N” to stop test, and then it will display as below; NB300/305 Series Maintenance Manual...
  • Page 86 3. Tests and Diagnostics Press any key, the program will return to the below display, and you can press “Y” or “N” to judge the result. NB300/305 Series Maintenance Manual...

  • Page 87: Fan On/Off Test

    “OFF”. The screen should display as below, indicating whether the test is passed or failed after the question. If FAN RPM check is OK, it will show as below: NB300/305 Series Maintenance Manual...
  • Page 88 3. Tests and Diagnostics If FAN RPM check is NG, it will show as below: NB300/305 Series Maintenance Manual...

  • Page 89: Main Battery Charge Test

    - “Battery Is Full” showed when “remain charge capacities” is 100% The screen should display as below, if the charge function is OK, will show:. If the charge function is NG, the screen will display as: NB300/305 Series Maintenance Manual...

  • Page 90: Fdd Test

    NOTE: The write-protected device of this formatted diskette should be “Disable”. The subtests run automatically. NOTE: Press “Esc” key can skip the current subtest. The screen should display as below, indicating whether the subtests pass or fail when finished. NB300/305 Series Maintenance Manual...

  • Page 91: Memory Check

    This test will check if the computer’s Memory Frequency and Size is correct in every slot. Before Memory test start, you should choice the below item: 1. Memory Read test 2. Memory Write test 3. Memory Read & Write test 4. Memory INFO test NB300/305 Series Maintenance Manual...
  • Page 92 3 Tests and Diagnostics When you execute this test, after you press the related number, the test picture will show as below: Memory Read Test Memory Write Test NB300/305 Series Maintenance Manual...
  • Page 93 3. Tests and Diagnostics Memory Read & Write Test Memory Info Test NOTE: Base on normal status, the Memory Info speed show 800/667, then the RAM is DDR2; if speed show 1066, and then the RAM is DDR3. NB300/305 Series Maintenance Manual...

  • Page 94: Keyboard Test

    When you execute this test, the keyboard layout is drawn on the display. When any key is pressed, the corresponding key on the screen changes to black as shown below. It will indicate whether the sub test is passed or failed after the question. US Keyboard NB300/305 Series Maintenance Manual...
  • Page 95 UK keyboard NOTE: The “Fn” key cannot be tested in the keyboard test. To determine whether the “Fn” key is working correctly, press “Fn+F6 ” or “Fn+F7 ” keys to check if LCD display brightness change gradually. NB300/305 Series Maintenance Manual...

  • Page 96: Mouse (Pad) Test

    It will indicate whether the subtests pass or fail after three questions. NOTE: The above figure has three compartments although the Touch Pad installed may only have two buttons. In this case, the central compartment in the figure does not correspond to any button. NB300/305 Series Maintenance Manual...

  • Page 97: Lcd Pixels Mode Test

    - including 40*25 (16 colors) and 80*25 (2/16colors). 2. VGA Mode - including 320*200 (2/4/16 colors), 640*200 (2/16 colors), 640*350 (2/16 colors), 640*480 (2/16/256 colors). The screen should display as below, indicating whether the test is passed or failed after the question. NB300/305 Series Maintenance Manual...

  • Page 98: Magnetic Switch Test

    2. Open the LCD. Then it will indicate whether the test is passed or failed. 1>. If the Magnetic switch test fail, it will show below display: 2>. If the Magnetic switch test pass, it will show below display: NB300/305 Series Maintenance Manual...
  • Page 99 3. Tests and Diagnostics NB300/305 Series Maintenance Manual...

  • Page 100: Lan Test

    Node – it is “MAC Address”.  Line Speed –1000 Mbps or 100Mbps or 10 Mbps.  Bus ID – it’s “09”. The LAN test includes three subtests of the: 1. Speed1000 2. Speed100 3. Speed10 The subtests run automatically. NB300/305 Series Maintenance Manual...
  • Page 101 3. Tests and Diagnostics The screen should display as below, indicating whether the subtests pass or fail when finished. If an error is detected and a test fails, the following message displays: NB300/305 Series Maintenance Manual...

  • Page 102: Rtc Test

    Checks the computer’s RTC (Real Time Clock) and calendar functions by comparing the Free- DOS and CMOS values. The test runs automatically. The screen should display as below, indicating whether the test is passed or failed when finished. The screen will show below picture, if RTC test is OK. NB300/305 Series Maintenance Manual...
  • Page 103 3. Tests and Diagnostics The screen will show below picture, if RTC test is FAIL. NB300/305 Series Maintenance Manual...

  • Page 104: Gsensor

    Set method of PC <1> If the picture shows as below, it means the 3D G-sensor function is OK Test 2 : Rear Uppe Set method of PC <2> Test 3: Right Uppe Set Method of PC <3> Test 4: NB300/305 Series Maintenance Manual...
  • Page 105 Set method of PC <5> Test Result A test result is displayed when a test is completed. A display of result is O.K. or NG. And an error flag is returned at the end of a program. NB300/305 Series Maintenance Manual...
  • Page 106 3. Tests and Diagnostics If the picture shows as below, it means the 3D G-sensor function is NG NB300/305 Series Maintenance Manual...

  • Page 107: Hdd Test

    The HDD test allows the user to verify the HDD ok or not. First, please select HDD test method, Screen would display as below: After you select the method, then input password: “hard disk”, if input password is Right, the screen would display as below: NB300/305 Series Maintenance Manual...
  • Page 108 The screen will display as below picture to show the subtest is passed or failed when finished: If it is show the picture as below, it means HDD function is OK If the picture shows as below, it means he HDD function is NG NB300/305 Series Maintenance Manual...
  • Page 109 3. Tests and Diagnostics NB300/305 Series Maintenance Manual...

  • Page 110: Read Dmi Test

    3. Tests and Diagnostics 3.17 Read DMI Compal write Toshiba Part No (version), Toshiba Serial No (Serial No), Product Name, OEM string and UUID, If you want to double check the DMI data, please select Read DMI item, the figure below will be displayed:...

  • Page 111: Write Dmi

    3. Write Version (32) 4. Write OEM String (64) After write OK, you should reboot the system that can make the setting effective, or you can write next data before reboot system, the figure below will displayed: NB300/305 Series Maintenance Manual...
  • Page 112 3. Tests and Diagnostics NOTE: should input correct DMI data, and should reboot the system that can make the setting effective. NB300/305 Series Maintenance Manual...

  • Page 113: Toshiba Logo Set

    3. Tests and Diagnostics 3.19 Toshiba Logo set Set the computer’s Toshiba Logo for other region except Japan SKU. The screen should display as below, indicating whether the test is passed or failed when finished. Press any key continue to auto set, if write OK, the following message displays:...
  • Page 114 3. Tests and Diagnostics When Toshiba Logo set finish, please restart machine, when show below Logo: If an error is detected and a test fails, the following message displays: NB300/305 Series Maintenance Manual...

  • Page 115: Dynabook Logo Set

    3. Tests and Diagnostics 3.20 Dynabook Logo set Set the computer’s Dynabook Logo for Japan SKU. The screen should display as below, indicating whether the test is passed or failed when finished. NB300/305 Series Maintenance Manual...
  • Page 116 3. Tests and Diagnostics Press any key continue to auto set, if write OK, the following message displays: When Dynabook Logo set finish, please restart machine, when show below Logo: NB300/305 Series Maintenance Manual...
  • Page 117 3. Tests and Diagnostics If an error is detected and a test fails, the following message displays: NB300/305 Series Maintenance Manual...

  • Page 118: Tp Type Rw Test

    This T/P TYPE R/W test checks the computer’s T/P TYPE and users write T/P vendor ID into EEPROM. The test runs automatically. The screen should display as below, indicating whether the test is passed or failed when finished. NB300/305 Series Maintenance Manual...
  • Page 119 3. Tests and Diagnostics If write T/P type fail, the screen would display as below If read T/P type fail, the screen would display as below NB300/305 Series Maintenance Manual...
  • Page 120 3. Tests and Diagnostics If W/R T/P type passes, the screen would display as below NB300/305 Series Maintenance Manual...
  • Page 121 3. Tests and Diagnostics NB300/305 Series Maintenance Manual...

  • Page 122: Ee-Prom Setting

    NOTE: Should perform EE-PROM SETTING once change M/B. It defined as normal rule. The screen should display as below: If press “1” to set MIC function status in EE-PROM, the screen should display as below: NB300/305 Series Maintenance Manual...
  • Page 123 Please check related information to judge this unit whether has MIC function. If this unit has MIC function, press “Y” then program will set MIC enable automatically as below: If this unit has no MIC function, press “N” then program will set MIC disable automatically as below: NB300/305 Series Maintenance Manual...
  • Page 124 3. Tests and Diagnostics Then press any key go back to EE-PROM SETTING option as below: If press “2” to set 3G function status in EE-PROM, the screen should display as below: NB300/305 Series Maintenance Manual...
  • Page 125 Please check related information to judge this unit whether has 3G function. If this unit has 3G function, press “Y” then program will set 3G enable automatically as below: If this unit has no 3G function, press “N” then program will set 3G disable automatically as below: NB300/305 Series Maintenance Manual...
  • Page 126 3. Tests and Diagnostics Then press any key go back to EE-PROM SETTING option as below: If press “3” to set WIMAX function status in EE-PROM, the screen should display as below: NB300/305 Series Maintenance Manual...
  • Page 127 WIMAX function. If this unit has WIMAX function, press “Y” then program will set WIMAX enable automatically as below: If this unit has no WIMAX function, press “N” then program will set WIMAX disable automatically as below: NB300/305 Series Maintenance Manual...
  • Page 128 3. Tests and Diagnostics Then press any key go back to EE-PROM SETTING option as below: If press “4” to set BIOS language in EE-PROM, the screen will display as below: NB300/305 Series Maintenance Manual...
  • Page 129 If press “1” to set English BIOS language in EE-PROM, the screen will display as below: If press “2” to set Japanese BIOS language in EE-PROM, the screen will display as below: If press “3” to set French BIOS language in EE-PROM, the screen will display as below: NB300/305 Series Maintenance Manual...
  • Page 130 3. Tests and Diagnostics Then press any key go back to EE-PROM SETTING option as below: If press “5” to disable all no support function, program will perform automatically as below: NB300/305 Series Maintenance Manual...
  • Page 131 3. Tests and Diagnostics NB300/305 Series Maintenance Manual...
  • Page 132 3. Tests and Diagnostics Then press any key to go back to EE-PROM SETTING option as below: NB300/305 Series Maintenance Manual...
  • Page 133 3. Tests and Diagnostics If press “6” program will go back to test title as below: NB300/305 Series Maintenance Manual...
  • Page 134 Chapter 4 Replacement Procedures...
  • Page 135 Removing the HDD..................4-15 Installing the HDD ..................4-17 Memory ........................ 4-18 Removing the Optional Memory..............4-18 Installing the Optional Memory ..............4-19 Hinge Cover and Keyboard.................. 4-23 Removing the Hinge Cover................4-23 Removing the Keyboard................4-24 NB300 Maintenance Manual 4-ii...
  • Page 136 Removing the LCD Bezel Assembly ............4-47 Installing the LCD Bezel Assembly............. 4-50 4.17 LCD Module ......................4-51 Removing the LCD Module................. 4-51 Installing the LCD Module ................4-55 4.18 Camera module and Microphone ................. 4-56 NB300 Maintenance Manual 4-iii...
  • Page 137 4 Replacement Procedures Removing the Camera module and Microphone.......... 4-56 Installing the Camera module and Microphone ........... 4-57 NB300 Maintenance Manual 4-iv...
  • Page 138 Pull out cables and remove two screws ............4-30 Figure 4.28 Remove two screws and remove the LCD module........4-31 Figure 4.29 Remove five screws and detach two cables..........4-31 Figure 4.30 Remove screws .................... 4-32 Figure 4.31 Remove the logic upper assembly ............... 4-33 NB300 Maintenance Manual...
  • Page 139 Pull out cables and antennas ................ 4-51 Figure 4.52 Removing the screws from the LCD module ..........4-52 Figure 4.53 Removing the LCD Hinge Assembly ............4-53 Figure 4.54 Removing the LVDS cable ................4-54 Figure 4.55 Removing the Microphone ................4-56 NB300 Maintenance Manual 4-vi...

  • Page 140: General

    4.12 Speaker 4.13 Motherboard 4.10 Touch Pad Board Assembly 4.15 Fan and 4.11 Bluetooth 4.14 IO Board Thermal Module Card  For removing the LCD Module: First, remove Logic Upper Assembly, then remove the LCD Bezel Assembly. NB300 Maintenance Manual...

  • Page 141: Safety Precautions

    DANGER: Always use the original batteries or replacement batteries authorized by Toshiba. Batteries other than those differ in specifications and are incompatible with the laptop. They may burst or explode. To avoid leakage of alkaline solutions, never heat or disassemble the battery packs.
  • Page 142 For AC input, be sure to use the AC adapter and AC power cable that come with your laptop or Toshiba-recommended equivalents. To avoid the risk of electrical shock, make sure that all the replacement components meet the specifications of the laptop and that all the cables and connectors are fastened securely.

  • Page 143: Before You Begin

    See the appropriate explanations and figures for screw sizes. To avoid personal injury, use care to handle components that have sharp edges or corners. After you have replaced a FRU, check that the FRU works correctly to ensure normal laptop operation. NB300 Maintenance Manual...

  • Page 144: Disassembly Procedures

     Check that all the required screws are used to secure the FRUs. Using wrong screws can damage the threads or heads of the screws or does not ensure that the FRUs are secure. After installing a FRU, make sure that the FRU and laptop work normally. NB300 Maintenance Manual...

  • Page 145: Tools And Equipment

     M2 (2 mm) 0.15~0.20 N･m (1.5~2.0 kgf･cm)  M2.5 (2.5 mm) 0.26~0.30 N･m (2.5~3.0 kgf･cm)  M3 (3 mm) 0.26~0.30 N･m (2.5~3.0 kgf･cm)  M2.5x4 screws 0.26~0.30 N･m (2.5~3.0 kgf･cm)  M2.5x6 screws 0.26~0.30 N･m (2.5~3.0 kgf･cm) NB300 Maintenance Manual...

  • Page 146: Colors Of Screw Shanks

    U (stands for unique-pan head screws, studs, etc.) Symbol examples  6 mm bind screw  12 mm bind screw  5 mm stud (The numeral represents the rounded length of the threaded portion regardless of the entire stud length.) NB300 Maintenance Manual...

  • Page 147: Battery

    Slide the battery safety lock to the unlock position. Slide the battery release latch and remove the battery pack from the laptop. Figure 4.1 Removing the Battery Pack NOTE: Dispose of the used battery packs as required by local ordinances or regulations. NB300 Maintenance Manual...

  • Page 148: Installing The Battery Pack

    NOTE: Visually check the battery's terminals. If they are dirty, clean them with a dry cloth. 1. Gently insert a new or recharged battery pack into place. Check that the battery release latch slides in and stops with a click. 2. Slide in the battery safety lock to the lock position. NB300 Maintenance Manual...

  • Page 149: Wlan Card

    1. Remove one M2.5x3 and one M2.5x10 TORX screws securing the HDD door. Lift up the HDD door under 60 degrees and remove it. M2.5x3*1 M2.5x10*1 under 60° Figure 4.2 Remove one M2.5x3 and one M2.5x10 TORX screws 2. Detach the two antennas on the WLAN card. NB300 Maintenance Manual 4-10...

  • Page 150: Figure 4.3 Detach Two Antennas And Remove Two Screws

    3. Remove two M2x4 screws that secure the WLAN card. M2x4*2 White antenna cable WLAN Card Black antenna cable Figure 4.3 Detach two antennas and remove two screws 4. Pull the WLAN card out at an angle. Figure 4.4 Removing the WLAN card NB300 Maintenance Manual 4-11...

  • Page 151: Installing The Wlan Card

    2. Press the card down and secure it with two M2x4 screws. 3. Attach the two antennas to the WLAN card. The white (MAIN) antenna to the #1 connector and the black (AUX) antenna to the #2 connector. NB300 Maintenance Manual 4-12...

  • Page 152: Wwan Card

    1. Detach the two antennas on the WWAN card. 2. Remove two M2x4 screws that secure the WWAN card. M2x4*2 Blue antenna cable WWAN card Red antenna cable Figure 4.5 Detach two antennas and remove two screws NB300 Maintenance Manual 4-13...

  • Page 153: Installing The Wwan Card

    2. Press the card down and secure it with two M2x4 screws. 3. Attach the two antennas to the WWAN card. The red (MAIN) antenna to the MAIN connector and the blue (AUX) antenna to the AUX connector. NB300 Maintenance Manual 4-14...

  • Page 154: Hdd

    Applying such pressure can either corrupt the data in the drive or damage the drive. Remove the HDD (hard disk drive) according to the following procedures. 1. Slide the HDD pack horizontally to disconnect it from HDD connector. Figure 4.7 Slide the HDD pack horizontally NB300 Maintenance Manual 4-15...

  • Page 155: Figure 4.8 Removing The Hdd From The Hdd Bay

    Figure 4.8 Removing the HDD from the HDD bay NOTE: Do not disassemble the HDD pack when it is working normally. Disassemble or replace the HDD pack only if it fails. 3. Place the HDD pack on a flat surface such as a desk. NB300 Maintenance Manual 4-16...

  • Page 156: Installing The Hdd

    HDD pack. Always hold the HDD pack by its sides. 3. Install the HDD pack into the correct position in the laptop. Connect the HDD pack to the laptop. NB300 Maintenance Manual 4-17...

  • Page 157: Memory

    2. Remove one M2.5x4 screw that secures the RAM door. 3. Remove the RAM door. CAUTION: Do not touch the connectors on the memory or in the laptop. Contaminated connectors can cause memory access problems. M2.5x4*1 Figure 4.10 Removing the RAM door NB300 Maintenance Manual 4-18...

  • Page 158: Installing The Optional Memory

    Install the optional memory according to the following procedures after checking that the laptop is turned off. CAUTION: Install the optional memory after turning off the laptop. If this is violated, the laptop or memory can be damaged. NB300 Maintenance Manual 4-19...
  • Page 159 4. Press the upper corners of the memory module to make sure it is secured by the metal springs. Figure 4.13 Press the upper corner of the memory 5. Reinstall the RAM door. 6. Secure the RAM door with one M2.5x4 screw. NB300 Maintenance Manual 4-20...
  • Page 160 Figure 4.16 Remove the sticker on the front side of the thermal pad If the motherboard is replaced with a new one, there will be a new thermal stuck on the motherboard. Please remove the sticker on the thermal pad before installing the memory module. NB300 Maintenance Manual 4-21...
  • Page 161 After the laptop is turned on, check the hardware configuration in the Hardware Setup or TESTUP program to make sure that the installed memory has been recognized by the system. If it has not been recognized yet, check the connections. NB300 Maintenance Manual 4-22...

  • Page 162: Hinge Cover And Keyboard

    Removing the Hinge Cover Remove the hinge cover according to the following procedures. 1. Remove three M2.5x4 screws as indicated in Figure 4.17. M2.5x4*3 Figure 4.17 Remove three screws 2. Turn the laptop right side up. NB300 Maintenance Manual 4-23...

  • Page 163: Removing The Keyboard

    Figure 4.18 Removing the hinge cover Removing the Keyboard Remove the Keyboard according to the following procedures. 1. Turn the laptop upside down and remove one M2.5x4 and one M2.5x6 screws. M2.5x6*1 M2.5x4*1 Figure 4.19 Remove two screws NB300 Maintenance Manual 4-24...
  • Page 164 3. Pry up the keyboard cover from the right side and remove it. Figure 4.20 Removing the keyboard cover 4. Pry up the keyboard from the top and move it up. Figure 4.21 Pry up the keyboard NB300 Maintenance Manual 4-25...

  • Page 165: Installing The Hinge Cover And Keyboard

    5. Seat the hinge cover in the correct position and firmly click into place. 6. Close the laptop. 7. Turn the laptop upside down. Secure the hinge cover with three M2.5x4 screws. Secure the keyboard with one M2.5x4 and one M2.5x6 screws. NB300 Maintenance Manual 4-26...

  • Page 166: Power Board

    Remove the power board according to the following procedures and Figure 4.23. 1. Carefully remove any adhesive tape covering the power board cable. 2. Remove the power board cable from the motherboard. Figure 4.23 Remove the power board cable NB300 Maintenance Manual 4-27...

  • Page 167: Installing The Power Board

    2. Slide the power board to the end of the track until the latch clicks into place. 3. Place the power board cable into the connector on the motherboard. 4. Secure the power board cable with adhesive tape. NB300 Maintenance Manual 4-28...

  • Page 168: Logic Upper Assembly

    Remove the logic upper assembly according to the following procedures. 1. Disconnect three cables as indicated in Figure 4.25. Figure 4.25 Disconnect three cables Note: Pull the tape on the CMOS connector normally to detach the CMOS cable. Do not pull the cable itself. NB300 Maintenance Manual 4-29...
  • Page 169 3. Turn the laptop right side up and open it. Pull out the antennas and the LVDS cable, CMOS cable and microphone cable from the routing channel as indicated in Figure 4.27. Remove two M2.5x6 screws. M2.5x6*2 Figure 4.27 Pull out cables and remove two screws NB300 Maintenance Manual 4-30...
  • Page 170 Figure 4.28 Remove two screws and remove the LCD module 5. Turn the laptop right side up. Remove five M2.5x6 screws and detach two cables as indicated in Figure 4.29. M2.5x6*5 Figure 4.29 Remove five screws and detach two cables NB300 Maintenance Manual 4-31...
  • Page 171 4 Replacement Procedures Error! Style not defined. Error! Style not defined. 6. Turn the laptop upside down and remove six M2.5x6 and two M2.5x4 screws as indicated in Figure 4.30. M2.5x4*2 M2.5x6*6 Figure 4.30 Remove screws NB300 Maintenance Manual 4-32...
  • Page 172 7. Hold the bottom base assembly with your left hand and pull down the logic upper assembly with your right hand. Pry up the logic upper assembly with your right hand and separate it from the bottom base assembly. Figure 4.31 Remove the logic upper assembly NB300 Maintenance Manual 4-33...

  • Page 173: Installing The Logic Upper Assembly

    6. Turn the laptop upside down and secure the logic upper assembly with six M2.5x6 and two M2.5x4 screws. NOTE: Take extra care in routing cables and antennas on Logic upper assembly. Improperly routed cables can become pinched or damaged and cause malfunction. NB300 Maintenance Manual 4-34...

  • Page 174: Touch Pad Board

    Figure 4.32 Detach the cable Remove one M2x3 screw and two M2x4 screws and remove the touch pad board from the logic upper assembly. M2x4*1 M2x3*1 M2x4*1 Figure 4.33 Remove three screws and remove the touch pad board NB300 Maintenance Manual 4-35...

  • Page 175: Installing The Touch Pad Board

    Seat the touch pad board in the correct position. Secure the touch pad board to the logic upper assembly with one M2x3 and two M2x4 screws. Paste the mylar on the touch pad board. Connect the cable to the touch pad. NB300 Maintenance Manual 4-36...

  • Page 176: Bluetooth Card

    Figure 4.36 Detach the cable from the Bluetooth card Installing the Bluetooth Card Install the Bluetooth card according to the following procedures. 1. Connect the cable to the Bluetooth card. 2. Seat the Bluetooth card in the correct position on the logic upper assembly. NB300 Maintenance Manual 4-37...

  • Page 177: Speaker

    4.12 Speaker Removing the Speaker Remove the Speaker according to the following procedures. 1. Detach the cable and remove the right speaker. Figure 4.37 Remove the right speaker Detach the cable and remove the left speaker. NB300 Maintenance Manual 4-38...

  • Page 178: Installing The Speaker

    Error! Style not defined. Error! Style not defined. 4 Replacement Procedures Figure 4.38 Remove the left speaker Installing the Speaker Install the speaker according to the following procedures. 1. Seat the speakers in the correct position and connect the cables to the motherboard. NB300 Maintenance Manual 4-39...

  • Page 179: Motherboard

    4 Replacement Procedures Error! Style not defined. Error! Style not defined. 4.13 Motherboard Removing the Motherboard Remove the motherboard according to the following procedures. 1. Remove two M2.5x4 screws. M2.5x4*2 Figure 4.39 Remove two screws NB300 Maintenance Manual 4-40...
  • Page 180 Error! Style not defined. Error! Style not defined. 4 Replacement Procedures 2. Remove the DC IN bracket. Figure 4.40 Removing the DC IN bracket 3. Pull out the DC IN cable from the routing channel. Figure 4.41 Pull out the DC IN cable NB300 Maintenance Manual 4-41...

  • Page 181: Installing The Motherboard

    4. Put the DC IN connector in the lower DC IN trough and route the cable from left to right in the routing channel. 5. Seat the DC IN bracket in its correct position. 6. Connect the IO board cable to the motherboard. 7. Secure two M2.5x4 screws. NB300 Maintenance Manual 4-42...

  • Page 182: Io Board

    Pry up the IO board a little from the left side, then remove it from the bottom assembly. Figure 4.43 Remove the IO board Installing the IO Board Install the IO board according to the following procedures. 1. Seat the IO board in the correct position on the bottom base assembly. NB300 Maintenance Manual 4-43...

  • Page 183: Fan And Thermal Module

    The unit can become very hot during operation. Be sure to let it cool down before starting the repair work. Use care when removing and disassembling the unit in order to avoid damage. 1. Detach one cable and remove one M2x4 screw. Remove the fan. M2x4*1 Figure 4.44 Remove the fan NB300 Maintenance Manual 4-44...
  • Page 184 Error! Style not defined. Error! Style not defined. 4 Replacement Procedures 2. Remove three M2x2.5 screws according to the sequence indicated in Figure 4.45 remove the thermal module. M2x2.5*3 Figure 4.45 Remove three screws NB300 Maintenance Manual 4-45...

  • Page 185: Installing The Fan And The Thermal Module

    2. Seat the thermal module in the correct position and secure it with three M2x2.5 screws in the sequence indicated in Figure 4.47. M2x2.5*3 Figure 4.47 Securing the thermal module 3. Seat the fan in the correct position on the motherboard and secure it with one M2x4 screws. NB300 Maintenance Manual 4-46...

  • Page 186: Lcd Bezel Assembly

    Remove the LCD bezel assembly according to the following procedures. 1. Remove the two screw rubbers that cover the screws. 2. Remove two M2.5x5 screws as shown in Figure 4.48. M2.5x5*2 Figure 4.48 Removing screws from the LCD Bezel Assembly NB300 Maintenance Manual 4-47...
  • Page 187 3. Pry up the bezel from left and then right as shown in Figure 4.49. Figure 4.49 Removing the bezel from the hinge wall 4. Press the hinge cover part on the bottom of the bezel and pull up the bezel. NB300 Maintenance Manual 4-48...
  • Page 188 5. Pry up the bezel from bottom to top and remove the bezel. Figure 4.50 Removing the bezel NOTE: The sides of the bezel are secured tightly. Remove slowly and take extra caution to prevent your nails from becoming broken or from scratching the LCD surface. NB300 Maintenance Manual 4-49...

  • Page 189: Installing The Lcd Bezel Assembly

    2. Press the bezel hinge wall against the cover hinge wall. Press the left and right side of the bezel as shown in Figure 4.49. Make sure the bezel clicks into place. 3. Secure it to the display assembly with two M2.5x5 screws. 4. Adhere the two screw rubbers to the screws. NB300 Maintenance Manual 4-50...

  • Page 190: Lcd Module

    4 Replacement Procedures 4.17 LCD Module Removing the LCD Module Remove the LCD module according to the following procedures. 1. Pull out all cables and antennas from the routing channel. Figure 4.51 Pull out cables and antennas NB300 Maintenance Manual 4-51...
  • Page 191 Error! Style not defined. Error! Style not defined. 2. Remove four M2.5x4 screws securing the LCD module to the LCD cover assembly. M2.5x4*4 Figure 4.52 Removing the screws from the LCD module 3. Lift the LCD module out of the LCD cover assembly. NB300 Maintenance Manual 4-52...
  • Page 192 4. Remove four M2x3 screws that secure the LCD hinge assembly to the LCD panel and then remove the LCD hinge assembly. M2x3*2 M2x3*2 Figure 4.53 Removing the LCD Hinge Assembly 5. Turn the LCD module over and place it face down on a protective surface, such as a foam pad. NB300 Maintenance Manual 4-53...
  • Page 193 LCD module. Dispose of used LCD panels (fluorescent (FL) tubes) as required by local ordinances or regulations. The LVDS cable must be carefully peeled away before disconnecting it from the LCD panel. NB300 Maintenance Manual 4-54...

  • Page 194: Installing The Lcd Module

    5. Seat the LCD module in the correct position in the LCD cover assembly. 6. Secure the LCD module to the LCD cover assembly with four M2.5x4 screws. 7. Route all the cables and antennas carefully in the routing channel. NB300 Maintenance Manual 4-55...

  • Page 195: Camera Module And Microphone

    1. Peel off the foil covering the microphone and remove the microphone. Figure 4.55 Removing the Microphone 2. Disconnect the Camera cable from the Camera module connector and remove the Camera module. NOTE: Camera module is fastened by adhesive tape. Remove it slowly and carefully. NB300 Maintenance Manual 4-56...

  • Page 196: Installing The Camera Module And Microphone

    1. Connect the Camera module cable to Camera module connector. 2. Seat the Camera module and microphone in the correct position on the LCD cover assembly. 3. Seat the microphone in the correct position on the LCD cover assembly and cover it with the foil. NB300 Maintenance Manual 4-57...

  • Page 197: Appendix A Handling The Lcd Module

    LCD cover before securing the module with screws. Do not force the module into place, because stress can affect its performance. Note: The panel’s polarized surface is easily scratched and damaged, so handle it carefully. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 198 Do not apply cleanser directly to the panel. Cleaner 4. If water or other liquid is left on the panel’s surface for a long period, it can change the screen’s tint or stain it. Be sure to quickly wipe off any liquid. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 199 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. Be sure to wear a wrist or ankle grounding device when handling the module. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 200 8. Do not store the module at temperatures below its specifications. Cold can cause the liquid crystals to freeze, lose their elasticity or otherwise suffer damage. 9. Do not disassemble the LCD module. Disassembly can cause malfunctions. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 201 10. If you transport the module, do not use packing material that contains epoxy resin (amine) or silicon glue (alcohol or oxime). These materials can release gas that can damage the panel’s polarization. [CONFIDENTIAL] NB300 Series Maintenance Manual...

  • Page 202: Appendix B Board Layout

    Appendix B Appendix B Board Layout B.1 System Board Top View JLVDS JCAM JMIC JPOWER JTOUCH JSPKR JFAN JCARD JPIO JSPKL U13 U28 Figure B-1 System Board Layout (Top) [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 203 B.2 System Board Bottom View PJP2 JCRT PJP1 JSATA JLAN JGPS JWLAN JUSBC JDDR1 U6 U9 U10 Figure B-2 System Board Layout (Bottom) [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 204 Name Intel Atom_N450 or N470 Thermal Sensor_EMC1402 Clock Generator_SLG8SP556VTR South Bridge Intel Tiger point USB TS3USB221RSER USB BUS SW_SN74CBT3125PWRG4 EC_KB926QFC0 G-sensor_TSH35TR FAN Control IC_APL5607KI-TRG BIOS ROM Codec_ALC272-GR Card Reader_RTS5159-GR 10/100 LAN_RTL8103EL-GR LAN Transformer_S X'FORM_ LFE8456E-R [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 205 LAN conn. JGPS GPS conn. JWLAN WLAN conn. JPIO I/O/B conn. JUSBC USB/C conn. JCAM Camera conn. Bluetooth conn. JEXMIC External MIC conn. Keyboard conn. JTOUCH TP/B conn. PJP1 AC Adaptor conn. PJP2 Battery conn. [CONFIDENTIAL] NB300 Series Maintenance Manual...

  • Page 206: Appendix C Pin Assignments

    Appendix C Pin Assignments System Board JFAN Table C-1 FAN I/F pin assignments (3-pin) Pin No. Signal name Pin No. Signal Name +FAN1 FAN_SPEED1 JLVDS Table C-2 LVDS I/F pin assignments (20-pin) Pin No. Signal name Pin No. Signal Name +LEDVDD +LCDVDD_L +3VS...
  • Page 207 JCRT Table C-3 CRT pin assignments (15-pin) Pin No. Signal name Pin No. Signal Name CRT_R_L CRT_G_L CRT_B_L +CRT_VCC CRT_DDC_DAT HSYNC VSYNC CRT_DDC_CLK JSATA Table C-4 HDD I/F pin assignments (22-pin) Pin No. Signal name Pin No. Signal Name SATA_ITX_C_ DRX_P0 SATA_ITX_C_ DRX_N0...
  • Page 208 Table C-5 Bluetooth Connector pin assignments (10-pin) Pin No. Signal name Pin No. Signal Name USB20_P2 USB20_N2 WLAN_BT_CLK BT_DET# BT_RESET# WLAN_BT_DATA +BT_VCC +3VS JCAM Table C-6 Internal Camera Connector pin assignments (5-pin) Pin No. Signal name Pin No. Signal Name +CAM_VDD USB20_N7_R USB20_P7_R...
  • Page 209 JWLAN Table C-7 WLAN/WiMax Connector pin assignments (52-pin) Pin No. Signal name Signal Name +3VALW WLAN_BT_DATA WLAN_BT_CLK +1.5VS WLAN_CLKREQ# CLK_PCIE_WLAN# CLK_PCIE_WLAN XMIT_OFF# PLT_RST# PCIE_PTX_C_IRX_N +3VALW PCIE_PTX_C_IRX_P +1.5VS CLK_SMBCLK PCIE_ITX_C_PRX_N CLK_SMBDATA PCIE_ITX_C_PRX_P USB20_N6 USB20_P6 +3VALW +3VALW LED_WIMAX# +1.5VS EC_TX_P80_DATA EC_RX_P80_CLK +3VALW [CONFIDENTIAL] NB200 Series Maintenance Manual...
  • Page 210 JLAN Table C-8 LAN Connector pin assignments (12-pin) Pin No. Signal name Pin No. Signal Name RJ45_MIDI0+ RJ45_MIDI0- RJ45_MIDI1+ RJ45_MIDI1- JGPS Table C-9 GPS Connector pin assignments (52-pin) [CONFIDENTIAL] NB200 Series Maintenance Manual...
  • Page 211 Pin No. Signal name Pin No. Signal Name +3VS +1.5VS WWAN_CLKREQ +UIM_PWR UIM_DATA CLK_PCIE_WWA UIM_CLK CLK_PCIE_WWA UIM_RST UIM_VPP UWB_OFF# PLTRST# PCIE_PTX_C_IR +3VS X_N4 PCIE_PTX_C_IR X_P4 +1.5VS CLK_SMBCLK PCIE_ITX_C_PR CLK_SMBDATA X_N4 PCIE_ITX_C_PR X_P4 USB20_N5 USB20_P5 +3VS +3VS LED_WIMAX# +1.5VS +3VS C.10 JDDR1 Table C-10 SODIMM I/F pin assignments (200-PIN) (1/4) [CONFIDENTIAL] NB200 Series Maintenance Manual...
  • Page 212 Pin No. Signal name Pin No. Signal Name +DIMM_VREF DDR_A_D4 DDR_A_D0 DDR_A_D5 DDR_A_D1 DDR_A_DM0 DDR_A_DQS#0 DDR_A_DQS0 DDR_A_D6 DDR_A_D7 DDR_A_D2 DDR_A_D3 DDR_A_D20 DDR_A_D21 DDR_A_D16 DDR_A_D17 DDR_A_DM2 DDR_A_DQS#2 M_CLK_DDR0 DDR_A_DQS2 M_CLK_DDR#0 Table C-10 SODIMM I/F pin assignments (200-PIN) (2/4) Pin No. Signal name Pin No.
  • Page 213 DDR_A_D18 DDR_A_D22 DDR_A_D19 DDR_A_D23 DDR_A_D9 DDR_A_D12 DDR_A_D8 DDR_A_D13 DDR_A_DQS#1 PM_EXTTS#0 DDR_A_DQS1 DDR_A_DM1 DDR_A_D10 DDR_A_D14 DDR_A_D11 DDR_A_D15 DDR_A_D24 DDR_A_D28 DDR_A_D25 DDR_A_D29 DDR_A_DM3 DDR_A_DQS#3 DDR_A_DQS3 DDR_A_D26 DDR_A_D30 DDR_A_D27 DDR_A_D31 DDR_CKE0 DDR_CKE1 +1.8V +1.8V DDR_A_BS2 DDR_A_MA14 +1.8V +1.8V DDR_A_MA12 DDR_A_MA11 DDR_A_MA9 DDR_A_MA7 DDR_A_MA8 DDR_A_MA6 +1.8V +1.8V...
  • Page 214 Pin No. Signal name Pin No. Signal Name DDR_A_MA5 DDR_A_MA4 DDR_A_MA3 DDR_A_MA2 DDR_A_MA1 DDR_A_MA0 +1.8V +1.8V DDR_A_MA10 DDR_A_BS1 DDR_A_BS0 DDR_A_RAS# DDR_A_WE# DDR_CS0# +1.8V +1.8V DDR_A_CAS# M_ODT0 DDR_CS1# DDR_A_MA13 +1.8V +1.8V M_ODT1 DDR_A_D32 DDR_A_D36 DDR_A_D33 DDR_A_D37 DDR_A_DQS#4 DDR_A_DM4 DDR_A_DQS4 DDR_A_D38 DDR_A_D34 DDR_A_D39 DDR_A_D35 DDR_A_D44...
  • Page 215 Table C-10 SODIMM I/F pin assignments (200-PIN) (4/4) Pin No. Signal name Pin No. Signal Name M_CLK_DDR1 M_CLK_DDR#1 DDR_A_DQS#6 DDR_A_DQS6 DDR_A_DM6 DDR_A_D50 DDR_A_D54 DDR_A_D51 DDR_A_D55 DDR_A_D56 DDR_A_D60 DDR_A_D57 DDR_A_D61 DDR_A_DM7 DDR_A_DQS#7 DDR_A_DQS7 DDR_A_D58 DDR_A_D59 DDR_A_D62 DDR_A_D63 CLK_SMBDATA CLK_SMBCLK +3VS C.11 JMIC Table C-11 Internal Microphone Connector pin assignments (2-pin) Pin No.
  • Page 216 C.12 JPIO Table C-12 IO Connector pin assignments (20-pin) Pin No. Signal name Pin No. Signal Name +USB_VCCA +USB_VCCA +USB_VCCA +USB_VCCA USB20_N1 USB20_P1 USB20_N0 USB20_P0 HP_R HP_L AGND MIC1_L MIC1_R NBA_PLUG MIC_SENSE C.13 JKB Table C-13 Keyboard Connector pin assignments (34-pin) Pin No.
  • Page 217 KSI1 KSI6 KSI5 KSI0 KSI4 KSI3 KSI2 KSI7 KSO15 KSO12 KSO11 KSO10 KSO9 KSO8 KSO13 KSO7 KSO6 KSO14 KSO5 KSO3 KSO4 KSO0 KSO1 KSO2 C.14 JUSBA Table C-14 USB Connector pin assignments (4-pin) Pin No. Signal name Pin No. Signal Name +USB_VCCA USB20_N0_R USB20_P0_R...
  • Page 218 C.16 JUSBC Table C-16 USB/B Connector pin assignments (4-pin) Pin No. Signal name Pin No. Signal Name +USB_VCCB USB20_N4_R_S USB20_P4_R_S C.17 JPOWER Table C-17 POWER/B connector pin assignments (4-pin) Pin No. Signal name Pin No. Signal Name PWR_ON_LED# PWR_ON_LED ON/OFFBTN#_R C.18 JCARD Table C-18 CARD READER connector pin assignments (11-pin) Pin No.
  • Page 219 C.20 JSPKL Table C-20 SPKR connector pin assignments (4-pin) Pin No. Signal name Pin No. Signal Name SPK_L1 SPK_L2 C.21 JTOUCH Table C-21 T/P connector pin assignments (6-pin) Pin No. Signal name Pin No. Signal Name TP_CLK TP_DATA +5VS [CONFIDENTIAL] C-14 NB200 Series Maintenance Manual...
  • Page 220 Appendix D Appendix D Keyboard Scan/Character 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 [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 221 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) [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 222 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(L) Alt (L) Space ALT (R) Ctrl(R)  Home   PgUp PgDn  [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 223 5. * This key corresponds to key No. 42 in a 102-key model. 6. * Refer to Table D-6, No. 124 key scan code. 7. * Refer to Table D-7, No. 126 key scan code. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 224 Shift key, scan codes are changed as listed below: With left Shift With right Shift Set 1 E0 AA ___________ E0 B6 E0 2A ___________ E0 36 Set 2 E0 F0 12_________ E0 F0 59 E0 12____________ E0 59 [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 225 Table D-4 Scan codes with Fn key Code set 1 Code set 2 Keytop Make Break Make Break L-CTRL L-ALT Pause Break ARROW NUMERIC Scrl Note: 8. * Refer to Table D-7, No. 126 key scan code. [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 226 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  Alt  [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 227 Table D-7 No.126 key scan code Key top Shift Code set 1 Code set 2 Make Make Pause Common Break Common *: This key generates only make codes. [CONFIDENTIAL] NB300 Series Maintenance Manual...

  • Page 228: Appendix E Key Layout

    Appendix E Key Layout 1. United Status (US) Keyboard Figure US keyboard 2. Traditional Chinese (CH) Keyboard Figure CH keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 229 3. Thai (TI) Keyboard Figure TI keyboard 4. Korean (KO) Keyboard Figure KO keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 230 5. United Kingdom (UK) Keyboard Figure UK keyboard 6. US International (UI) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 231 Figure UI keyboard 7. Hebrew (HB) Keyboard Figure HB keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 232 8. Danish (DM) Keyboard Figure DM keyboard 9. Swiss (SW) Keyboard Figure SW keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 233 10. Arabic (ARE) Keyboard Figure ARE keyboard 11. Czech (CZ) Keyboard Figure CZ keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 234 12. Russian (RU) Keyboard Figure RU keyboard 13. Portuguese (PO) Keyboard Figure PO keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 235 14. Slovakian (SL) Keyboard Figure SL keyboard 15. Italian (IT) Keyboard Figure IT keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 236 16. French (FR) Keyboard Figure FR keyboard 17. German (GR) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual...
  • Page 237 Figure GR keyboard 18. Greek (GK) Keyboard Figure GK keyboard 19. Hungarian (HG) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-10...
  • Page 238 Figure HG keyboard 20. Spanish (SP) Keyboard Figure SP keyboard 21. Turkish (TR) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-11...
  • Page 239 Figure TR keyboard 22. Turkish F (TF-F) Keyboard Figure TF-F keyboard 23. Swedish (SD) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-12...
  • Page 240 Figure SD keyboard 24. Belgian (BE) Keyboard Figure BE keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-13...
  • Page 241 25. Yugoslavian (YU) Keyboard Figure YU keyboard 26. Norwegian (NW) Keyboard Figure NW keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-14...
  • Page 242 27. Scandinavian (ND) Keyboard Figure ND keyboard 28. Canadian Multinational (AC) Keyboard Figure AC keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-15...
  • Page 243 29. Canadian Bilingual (CB) Keyboard Figure CB keyboard 30. Romania (RO) Keyboard Figure RO keyboard [CONFIDENTIAL] E-16 NB300 Series Maintenance Manual...
  • Page 244 31. Bulgaria (BU) Keyboard Figure BU keyboard 32. Japanese (JP) Keyboard [CONFIDENTIAL] NB300 Series Maintenance Manual E-17...
  • Page 245 Figure JP keyboard [CONFIDENTIAL] E-18 NB300 Series Maintenance Manual...
  • Page 246 LOW TO IO PCB TO UP LOW TO UP TO KB HINGE BRK TO UP TO SADDLE R/L TO LOW MA00000FMG0 M2.5x3 HDD DOOR TO LOWER MA00000FOG0 M2.5x10 M2.5*4 半牙 MA00000DMH0 RAM DOOR TO LOW [CONFIDENTIAL] NB300 Series Maintenance Manual...

  • Page 247: Appendix G Reliability

    Appendix G Appendix G Reliability The following table shows MTBF (Mean Time Between Failures) for each component. Table G-1 MTBF Component Time (hours) 10,000 Keyboard 60,000 300,000 Optical (DVD/CD) drive 60,000 AC adaptor 60,000 [CONFIDENTIAL] NB300 Series Maintenance Manual...

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