Sanyo DP37649 Service Manual

Sanyo dp37649 remote control digital color television

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Owner's manual (17 pages)

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Specifications

POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC

ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75Ω

RECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),

REMOTE READY. . . . . . . . . 32 KEY REMOTE CONTROL

SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . . 5.0 W/CH

INTERMEDIATE FREQUENCY

PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz

SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz

COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz

CABINET DIMENSIONS

WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 939mm

HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 694mm

DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 257mm

REFERENCE No.

(U.S.A.)

(CANADA)

180 W (AVG.)

UHF/VHF/CATV

DIGITAL

14 - 69 (UHF),

01, 14-94, 95-135 (CATV)

1-135 (DIGITAL)

780162

Table of Contents

Summary of Contents for Sanyo DP37649

Page 1: Table Of Contents
HEIGHT ....... 694mm DEPTH INCLUDING BASE ....257mm DP37649, N4PL, PRODUCT CODE 113018204 REFERENCE No.
Page 2: Safety Instructions
SAFETY INSTRUCTIONS SAFETY PRECAUTIONS WARNING: The chassis of this receiver has a floating ground with the potential of one half the AC line voltage in respect to earth ground. Service should not be attempted by anyone not familiar with the precautions necessary when working on this type of equipment.
Page 3: Service Adjustments
SERVICE ADJUSTMENTS GENERAL This set has an On-screen Service Menu system included in Volume – the CPU that allows remote operation for most of the Enter Service Menu service adjustments. ON-SCREEN SERVICE MENU SYSTEM 1. Enter the Service Menu: • Turn off the receiver and disconnect the AC power supply.
Page 4: On-Screen Service Menu
ON-SCREEN SERVICE MENU Table 1. ON-SCREEN SERVICE MENU When IC801 (EEPROM) is replaced, check the bus data to confirm they are the same as below. See page 3 for On-Screen Service Menu access and adjustments. Title Initial Data Note MUTE Audio mute at Power ON Volume setup inspection Option 1 Data (HDMI)
Page 5: Power Failure Circuit
POWER FAILURE CIRCUIT Check the following if the unit is turned off by the power CPU (IC800) is programmed so the set will go to standby failure detector. mode when there is circuit failure as described below. (Refer to“Block Diagram Power Lines”.) 1.
Page 6: Mechanical Disassembly
MECHANICAL DISASSEMBLY CAUTION: This LCD TV uses several different kinds of screws. Using the correct screw is necessary to prevent damage. Lead wires must be redressed to their previous locations after servicing. The Earth sheet and gasket are provided to pre- vent interference to other radio and television receivers.
Page 7 ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically Sensitive, and, therefore, require special handling techniques as described under “Servicing Electrostatically Sensitive Devices,” on page two in this service literature. LCD PANEL REMOVAL 1. Disconnect the lead wires from LCD panel, speakers and control board.
Page 8: Chassis Electrical Parts List
CHASSIS ELECTRICAL PARTS LIST CAUTION: To Protect against electrical shock and for continued product safety, refer to SAFETY PRECAUTIONS and PRODUCT SAFETY NOTICE on Page 2. PRODUCT SAFETY NOTICE PRODUCT SAFETY SHOULD BE CONSIDERED WHEN A REPLACEMENT IS MADE IN ANY AREA OF A RECEIVER. COMPONENTS INDICATED BY A IN THIS PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATE COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE.
Page 9 Schematic Schematic Part No. Part No. Description Description Location Location C1621 CK1H104ZLZFNG CERAMIC 0.1U Z CAPACITORS C1622 CK1H103KLZBNG CERAMIC 0.01U K C001 CPXLB1C100YAJ NP-ELECT 10U M C1623 CK1H103KLZBNG CERAMIC 0.01U K CPXLB1C100ZAJ NP-ELECT 10U M C1624 CK1H103KLZBNG CERAMIC 0.01U K C002 CK1H104ZLZFNG CERAMIC...
Page 10 Schematic Schematic Part No. Part No. Description Description Location Location C3206 CK1H104KLZBNG CERAMIC 0.1U K C5547 CK0J106KGMBNG CERAMIC 10U Z 6.3V C3208 CK1A105KLZBNG CERAMIC 1U K C5548 CK1H104ZLZFNG CERAMIC 0.1U Z C3209 CK1A105KLZBNG CERAMIC 1U K C5549 CK1H104ZLZFNG CERAMIC 0.1U Z C3210 CK1A105KLZBNG CERAMIC...
Page 11 Schematic Schematic Part No. Part No. Description Description Location Location C5611 CC1H470JLZCNG CERAMIC 47P J C5683 CK1H104ZLZFNG CERAMIC 0.1U Z C5612 CC1H470JLZCNG CERAMIC 47P J C5684 CK1H104ZLZFNG CERAMIC 0.1U Z C5614 CC1H470JLZCNG CERAMIC 47P J C5685 CK1H104ZLZFNG CERAMIC 0.1U Z C5615 CC1H470JLZCNG CERAMIC...
Page 12 Schematic Schematic Part No. Part No. Description Description Location Location C5746 CK1H104ZLZFNG CERAMIC 0.1U Z C6111 CEXLB0J102VDJ ELECT 1000U M 6.3V C5747 CK1A105KLZBNG CERAMIC 1U K C6112 CK1H104ZLZFNG CERAMIC 0.1U Z C5748 CK1H104ZLZFNG CERAMIC 0.1U Z C6118 CK1H103KLZBNG CERAMIC 0.01U K C5751 CE1V470MZVALC ELECT...
Page 13: Integrated Circuits
Schematic Schematic Part No. Part No. Description Description Location Location C6519 CK1H104ZLZFNG CERAMIC 0.1U Z IC5700 QXXAVC967—-P IC HYB18T512161B2F-25 C6520 CK1H104ZLZFNG CERAMIC 0.1U Z IC5750 QXXAAJQ0880— IC NAND128W3A2BN6E N4VJ C6521 CK1H104ZLZFNG CERAMIC 0.1U Z IC5750A QXXAVC973—-M IC NAND128W3A C6522 CK1H104ZLZFNG CERAMIC 0.1U Z IC5900...
Page 14 Schematic Schematic Part No. Part No. Description Description Location Location L1651 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L1739 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L1652 1LB4L26B1000N “INDUCTOR,15UH” L1740 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W 1AV4L2WK150MN “INDUCTOR,15U M” L1741 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L1653 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W...
Page 15 Schematic Schematic Part No. Part No. Description Description Location Location L6515 1LB4L26B0740G “INDUCTOR ,220 OHM” L5804 1AV4L2GA150JG “INDUCTOR,15U J” L5805 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L6516 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L6051 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L6518 RGFR000ZTAANL MT-GLAZE 0.000 ZA 1/10W L6052 1LB4L26B0740G “INDUCTOR ,220 OHM”...
Page 16 Schematic Schematic Part No. Part No. Description Description Location Location T2SC2812-L6-P TR 2SC2812-L6-TB T2SC2812-L7-P TR 2SC2812-L7-TB T2SC2812-L7-P TR 2SC2812-L7-TB T2SC2812N-L6P TR 2SC2812N-L6-TB0 T2SC2812N-L6P TR 2SC2812N-L6-TB0 T2SC3928A1R-P TR 2SC3928A1R T2SC3928A1R-P TR 2SC3928A1R T2SC3928A1S-P TR 2SC3928A1S T2SC3928A1S-P TR 2SC3928A1S Q1252 TXXLBB006—-P TR MMBTSC3928R Q811 TISA1235AC1FP TR ISA1235AC1F...
Page 17 Schematic Schematic Part No. Part No. Description Description Location Location T2SC2412K-R-P TR 2SC2412K T146 R T2SC2412K-R-P TR 2SC2412K T146 R T2SC2412K-S-P TR 2SC2412K T146 S T2SC2412K-S-P TR 2SC2412K T146 S T2SC2812-L6-P TR 2SC2812-L6-TB T2SC2812-L6-P TR 2SC2812-L6-TB T2SC2812-L7-P TR 2SC2812-L7-TB T2SC2812-L7-P TR 2SC2812-L7-TB T2SC2812N-L6P TR 2SC2812N-L6-TB0...
Page 18 Schematic Schematic Part No. Part No. Description Description Location Location T2SC2812-L6-P TR 2SC2812-L6-TB RESISTORS T2SC2812-L7-P TR 2SC2812-L7-TB R001 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W T2SC2812N-L6P TR 2SC2812N-L6-TB0 R002 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W T2SC3928A1R-P TR 2SC3928A1R R003 RGF3901JTCANL MT-GLAZE 3.9K JA 1/10W T2SC3928A1S-P TR 2SC3928A1S R004...
Page 19 Schematic Schematic Part No. Part No. Description Description Location Location R881 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R1058 RGF2203JTCANL MT-GLAZE 220K JA 1/10W R882 RGF2200JTCANL MT-GLAZE 220 JA 1/10W R1059 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R883 RGF1000JTCANL MT-GLAZE 100 JA 1/10W R1060 RGF3303JTCANL MT-GLAZE...
Page 20 Schematic Schematic Part No. Part No. Description Description Location Location R3205 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R1638 RG122R0JTEANL MT-GLAZE 22 JA R1639 RG122R0JTEANL MT-GLAZE 22 JA R5501 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1640 RG147R0JTEANL MT-GLAZE 47 JA R5504 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R1641 RGF1002JTCANL...
Page 21 Schematic Schematic Part No. Part No. Description Description Location Location R5606 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R5902 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5608 RGF1002JTCANL MT-GLAZE 10K JA 1/10W R5903 RGF4702JTCANL MT-GLAZE 47K JA 1/10W R5609 RGF4701JTCANL MT-GLAZE 4.7K JA 1/10W R5904 RGF4702JTCANL MT-GLAZE...
Page 22 Schematic Schematic Part No. Part No. Description Description Location Location R6264 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6545 RGF47R0JTCANL MT-GLAZE 47 JA 1/10W R6273 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6546 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6274 RGFR000ZTCANL MT-GLAZE 0.000 ZA 1/10W R6547 RGFR000ZTCANL MT-GLAZE...
Page 23: Power Board
Schematic Schematic Part No. Part No. Description Description Location Location MISCELLANEOUS POWER BOARD A1902 1AV4U20B99401 “UNIT,REMOCON RECEIVER” U901 1AV4U20C17401 “UNIT,POWER” A6100 1AV4F1BAZ0070 “TUNER,U/V” E001 1AV4T40C11900 LCD(T370XW02 VC02) K1003 1LB4J31B01101 “TERMINAL, BOARD” K1004 1LB4J12B11700 “JACK,RCA-9” K1005 1LB4J12B11600 “JACK,RCA-6” K19FRA 1AV4J10AR061N “PLUG,6P” K5LV 1AV4J10XE300G “PLUG,30P”...
Page 24: Component And Testpoint Locations
COMPONENT AND TESTPOINT LOCATIONS MAIN BOARD PARTS SIDE L7017 KUSB2 R1053 L7016 SC1012 KCOM K802 SC1016 L7008 IC001A R1068 L5552 L7023 R1064 IC001B SC1015 K801 L5554 R1060 L1613 IC001 R1603 SC1014 R1602 R1056 Q808 L1611 SC1013 L1606 L1608 L5556 R805 R804 K_JIGU R813...
Page 25 MAIN BOARD SOLDER SIDE KUSB2 L7001 L7002 L9101 L7024 L6106 SOLDER SIDE L7022 KCOM L7007 1AA4B10N21300 L1620 C1605 L1610 L9100 IC001A L1609 K801 IC001B K802 C1603 C002 IC001 L1695 L1625 R5976 C1693 C5972 L1691 L1624 R5974 C1690 R015 L002 K_JIGU L1688 L1696 C5971...
Page 26 CONTROL BOARD PART SIDE SW1902 SW1903 SW1904 SW1905 L1901 SW1901 A1901 C1903 C1902 K19FRA D1901 A30C5 PWB,CONTROL,N4SG A1902 CH_UP 1AA4B10N2020A POWER VOL_UP VOL_DOWN CH_DOWN D1902 CONTROL BOARD SOLDER SIDE SW1905 SW1904 SW1903 SW1902 L1901 K19FRA R1907 SW1901 D1901 A1901 1AA4B10N2020A A1902 R1902 PWB,CONTROL,N4SG...
Page 27: Block Diagram Power Lines
BLOCK DIAGRAM POWER LINES – 27 –...
Page 28: Block Diagram Signal Lines
BLOCK DIAGRAM SIGNAL LINES – 28 –...
Page 29: Ic Block Diagrams
IC BLOCK DIAGRAMS IC001, Audio AMP IC1251 Video and Audio Select – 29 –...
Page 30 IC BLOCK DIAGRAMS (CONT.) IC1600, DC to DC Converter – 30 –...
Page 31 IC1650, DC to DC Converter – 31 –...
Page 32 IC BLOCK DIAGRAMS (CONT.) IC5500 Screen Controller and video processor – 32 –...
Page 33 IC5700, DDR: Double Data Rate SDRAM – 33 –...
Page 34 IC BLOCK DIAGRAMS (CONT.) IC6270, Audio A/D IC3200, Audio Controller – 34 –...
Page 35 IC6400, LVDS Transmitter IC5900, Voltage detecting delay circuit – 35 –...
Page 36 IC BLOCK DIAGRAMS (CONT.) IC1670, DC to DC Converter IC6504, HDMI Switch selector – 36 –...
Page 37: Troubleshooting Flow Charts
TROUBLESHOOTING FLOW CHARTS NO POWER Check: Power Unit fuse open? the voltage Check: Power Unit to "5V_STBY" line supplied? All 0V (except '5V_STBY' line) the voltage to all lines Check: arround supplied? CPU (IC800), IC (IC801), Crystal (X801), Power Unit (or the voltage to some lines is not supplied.) After a few seconds, the set will be switched off.
Page 38: Digital
TROUBLESHOOTING FLOW CHARTS (CONT.) NO VIDEO Trouble Shooting Video US1G(37N4PL) Check: RF(TV) ,Digital(TV) All Inputs? Line: A6100 21pin - IC5500 AK19pin A6100 20pin - IC5500 AK20pin only Parts: Around A6100 (TU_IF), IC5500 Check: AV1 only Line: Terminal(CV) - Q5802,5806 - IC5500 AK21pin Terminal(Y) - Q5803,5807 - IC5500 AG15pin Terminal(C) - Q5804,5808 - IC5500 AG13pin Parts: Around IC5500...
Page 39: Digital
TROUBLESHOOTING FLOW CHARTS (CONT.) NO AUDIO Trouble Shooting Audio US1G(37N4PL) Is there Check: All Modes ? signal at speaker Speaker (SP901, SP902) terminal ? Is there Check: signal at IC001 3pin (L) Line: IC001 7pin - IC800 (CPU) 22pin (Mute) or 5pin (R) ? Parts: Around IC001 (Audio AMP.) Check:...
Page 40: Control Port Functions
CONTROL PORT FUNCTIONS System Control (CPU : IC800) Name Function Description P12/SCK0 Reserve (OPEN) P13/SO1 Reserve (OPEN) P14/SI1/SB1 IIC-BUS for NV (DATA) Active ‘L’ for IIC data NV P15/SCK1 IIC-BUS for NV (CLOCK) Active ‘L’ for IIC clock NV P16/T1PWML REG SW2 REG SW2 (ON High OFF Low) P17/T1PWMH/BUZ...
Page 41 Name Function Description P73/INT3/T0IN Rcin RC Input RESET in Microcomputer Reset RESET Low Normal High XT1/AN10 Conect to VDD1 XT2/AN11 Reserve (OPEN) VSS1 GND(0Vdc) Main Clock IN (Fosc=8MHz) Main Clock OUT (Fosc=8MHz) VDD1 Power IN 5V(5Vdc±10%) Key in Key input AFT(Reserve) PANEL READY Panel Ready (for PDP) OK_High _NG_Low...
Page 42: Signal Flow Charts
SIGNAL FLOW CHARTS WHEN A DIGITAL-RF CHANNEL IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode HDMI1 (or DVI) Clock (24.576MHz) I²C Audio Video RESET HDMI2 I²C Scaler HDMI3...
Page 43: Digital
WHEN AN ANALOG-RF CHANNEL IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode HDMI1 (or DVI) Clock (24.576MHz) I²C RESET HDMI2 I²C Scaler HDMI3 Video I²C S/P DIF RF-IN 8VSB...
Page 44: Digital
SIGNAL FLOW CHARTS (CONT.) WHEN A VIDEO INPUT (VIDEO1) IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video HDMI1 (or DVI) Decode Clock (24.576MHz) I²C HDMI2 RESET I²C Scaler HDMI3...
Page 45: Digital
WHEN VIDEO 2 IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video Video 2 (Component) Video 3 (Component) MPEG2 DEMUX RS-232C Video Decode HDMI1 (or DVI) Clock (24.576MHz) I²C HDMI2 RESET Video I²C Scaler HDMI3 I²C S/P DIF RF-IN Audio...
Page 46: Digital
SIGNAL FLOW CHARTS (CONT.) WHEN VIDEO 3 IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 Video DEMUX RS-232C Video Decode HDMI1 (or DVI) Clock (24.576MHz) I²C RESET Video HDMI2 I²C Scaler HDMI3...
Page 47: Digital
WHEN HDMI-3 IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video HDMI1 (or DVI) Decode Clock (24.576MHz) I²C Video HDMI2 RESET I²C Audio Scaler HDMI3 I²C S/P DIF RF-IN Audio NTSC...
Page 48: Digital
SIGNAL FLOW CHARTS (CONT.) WHEN HDMI-2 IS SELECTED DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video Decode HDMI1 (or DVI) Clock (24.576MHz) I²C Video RESET HDMI2 I²C Audio Scaler HDMI3 I²C...
Page 49 WHEN HDMI-1 IS SELECTED (DVI) DDR2 DDR2 SPI Flash 256Mbit 256Mbit (32 Mbit) (400MHz) (400MHz) Video 2 (Component) Video 3 (Component) MPEG2 HDMI RS-232C Video HDMI1 (or DVI) Decode Clock (24.576MHz) I²C Video HDMI2 RESET I²C Scaler HDMI3 I²C S/P DIF RF-IN Audio NTSC...
Page 50: Schematic Notes
SCHEMATIC NOTES NOTES ON SCHEMATIC DIAGRAMS 1. All resistance values in ohms K=1,000 M=1,000,000. 2. Resistors specified with resistance value are “1/6DJ.” 3. Resistors specified with type of resistor, tolerence and resistance value are “1/4.” 4. Unless otherwise noted on schematic, all capacitor values less than 1 are expressed in μF (Micro Farad), and the values more than 1 are in pF.
Page 51: Ic, Diode, And Transistor Pin Layouts
IC, DIODE, AND TRANSISTOR PIN LAYOUTS – 51 –...
Page 52: Pc Board Connections And Locations
PC BOARD CONNECTIONS AND LOCATIONS – 52 –...
Page 53: Capacitor And Resistor Code Chart
S ......Oxide Metalized Y ......Wire Wound C ......Solid D ......Carbon Film W ......Wire Wound For parts or service contact Sanyo Manufacturing Corporation P.O. Box 2000 3333 Sanyo Road Forrest City, Arkansas 72335-2000 August 2009 SMC Published in Mexico...
Page 54: Schematic Diagrams
MODEL DP37649 Chassis No. P37649-00 SCHEMATIC DIAGRAMS ELECTROSTATICALLY SENSITIVE DEVICES Many solid-state devices (especially Integrated Circuits) are Electrostatically TO SPEAKER Sensitive, and, therefore, require special handling techniques as described under “Servicing Electrostatically Sensitive Devices,” on page two in this service literature.
Page 55 MODEL DP37649 Chassis No. P37649-00 SCHEMATIC DIAGRAMS R6433 ROTATE R6331 DISP_EN C6335 *R6432 D3.3V L5805 1/10GZ0.0 R6430 C5809 TXCLKE+ R5805 Q5805 *K5LVDS IC6051 *L6414 C6410 C5817 PQ070XNA1ZPP R6434 TXCLKE- R6327 C5801 L5801 R5844 D D G R6329 6.3EM2200ZV D3.3V *R6420...

Sanyo DP37649 Service Manual

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