Panasonic TC-L32X1N Service Manual
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Panasonic TC-L32X1N Service Manual

Panasonic TC-L32X1N Service Manual

32 inch class 720p lcd hdtv
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32 inch Class 720p LCD HDTV
TC-L32X1N
Model No.
LH90 Chassis
© Panasonic Corporation 2009.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.MTNC090961CE
B05 Canada: B07
Ver.1

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Summary of Contents for Panasonic TC-L32X1N

  • Page 1 ORDER NO.MTNC090961CE B05 Canada: B07 32 inch Class 720p LCD HDTV TC-L32X1N Model No. LH90 Chassis © Panasonic Corporation 2009. Unauthorized copying and distribution is a violation of law. Ver.1...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions -----------------------------------------------3 11.10. A-Board (9/11) Schematic Diagram ----------------- 40 1.1. General Guidelines ----------------------------------------3 11.11. A-Board (10/11) Schematic Diagram --------------- 41 2 Warning --------------------------------------------------------------4 11.12. A-Board (11/11) Schematic Diagram --------------- 42 2.1. Prevention of Electrostatic Discharge (ESD) 11.13.

  • Page 3: Safety Precautions

    1 Safety Precautions 1.1. General Guidelines 1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 4: Warning

    2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor [chip] components.

  • Page 5: About Lead Free Solder (Pbf)

    2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

  • Page 6: Service Navigation

    3 Service Navigation 3.1. Important Notice 3.1.1. MANUFACTURING ID NO. This service manual is for MANUFACTURING ID NO. TC-L32X1N as indicated in the label at side and the model name plate of the unit. 3.2. Different P.C.B. Parts No. Parts name & Description...

  • Page 7: Service Hint

    3.3. Service Hint Board Name Function A-Board Rear Terminal, AV Switch, MCU, Audio & Video Processor, LVDS, Tuner V-Board Remote Receiver, LED P-Board Power (AC/DC), DC-DC Non-serviceable P-Board should be exchanged for service. Control Panel Assy Control Button, Power switch Non-serviceable Control Panel Assy should be exchanged for service.

  • Page 8: Specifications

    4 Specifications Power Source AC 110-127 V, 60 Hz Power Consumption Maximum 120 W Standby Condition 0.7 W Display panel Aspect Ratio 16:9 Visible screen size 32 inch class (31.5 inches measured diagonally) (W × H × Diagonal) 27.5 inch × 15.4 inch × 31.5 inch (698 mm × 392 mm × 800 mm) 1,049,088 (1,366 (W) ×...

  • Page 9: Service Mode

    5 Service Mode 5.1. How to enter into Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. 5.1.1. Key command [1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction...

  • Page 10: Srv-Tool

    5.2. SRV-TOOL 5.2.1. How to access 1. Select [SRV-TOOL] in Service Mode. 2. Press [OK] button on the remote control. 5.2.2. Display of SOS History SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory ship- ment setting].

  • Page 11: Hotel Mode

    5.3. Hotel mode 1. Purpose Restrict a function for hotels. item Function 2. Access command to the Hotel mode setup menu Mode Select hotel mode off/on In order to display the Hotel mode setup menu, please Input Select input signal modes. enter the following command (within 2 second).

  • Page 12: Troubleshooting Guide

    6 Troubleshooting Guide Use the self-check function to test the unit. 1. Checking the IIC bus lines 2. Power LED Blinking timing 6.1. Check of the IIC bus lines 6.1.1. How to access Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.

  • Page 13: Power Led Blinking Timing Chart

    6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.

  • Page 14: No Power

    6.3. No Power First check point There are following 2 states of No Power indication by power LED. 1. No lit 2. Red is lit then turns red blinking a few seconds later. (See 6.2.)

  • Page 15: Disassembly And Assembly Instructions

    7 Disassembly and Assembly Instructions 7.3. AC cord Caution Exchange printed circuit board after confirm parts number. 1. Remove the screw and Remove the AC cord bracket. 2. Remove the bushing of the AC cord from the AC cord Parts name & Description Parts No.

  • Page 16: Side Av Bracket

    7.5. Side AV bracket 7.7. Control panel 1. Remove the 1 screw (C). 1. Disconnect the connector (K1). 2. Remove the 1 screw (D). 2. Remove the 2 screws. 3. Remove the side AV bracket. 3. Remove the control panel. 7.6.

  • Page 17: P-Board Plastic Frame

    7.9. P-Board Plastic frame 7.11. VESA metal 1. Remove the 4 screws. 1. Remove the 2 screws (E). 2. Remove the P-Board Plastic frame. 2. Remove the 4 screws (F). 3. Remove the VESA metal. 7.10. A-P-MTG Metal 1. Remove the 5 screws. 2.

  • Page 18: Lcd Mtg

    7.12. LCD MTG 7.13. LCD Panel 1. Remove the 2 screws (G). 1. Remove the 4 screws. 2. Remove the LCD bottom corner MTG. 2. Remove the LCD panel and LCD side MTG. 3. Remove the 4 screws (H). 7.14. V-Board 4.

  • Page 19: Emi Processing

    7.15. EMI processing...

  • Page 22: Measurements And Adjustments

    8 Measurements and Adjustments 8.1. Voltage chart of A-board VOLTAGE TEST POINT SPECIFICATION (Reception state) STB3.3V TP2843 3.3 ± 0.16 V STB1.8V TP7006 1.84 ± 0.09 V SUB1.2V TP5602 1.26 ± 0.06 V SUB1.8V TP5601 1.84 ± 0.09 V SUB3.3V TP5600 3.3 ±...

  • Page 23: Picture Level Adjustment (Video)

    8.3. Picture level adjustment (VIDEO) Instrument Name Remarks 1. REMOTE TRANSMITTER 2. Video signal generator (100% Color bar) Adjustment or Inspection Procedure Remarks <procedure> 1. Receive 100% Color bar. (ASPECT: ZOOM or FULL, Picture mode: VIVID, AI Picture: OFF) * BACK LIGHT MAX VALUE <Inspection>...

  • Page 25: Block Diagram

    9 Block Diagram 9.1. Main Block Diagram A-BOARD 27MHz IFD1/2 TS Serial FRONT END Digital/Analog CLOCK Tuner 74MHz EEPWP EEPROM DDR2 SDRAM 27MHz IIC3 TV-V TS Serial HDMI1 TV-L,R RESET HDMI2 SWITCH Digital Video signal FLASH HDMI3 MEMORY HUNSON2 RESET V,Y,C Video front-end, VIDEO2...

  • Page 26: Block (1/2) Diagram

    9.2. Block (1/2) Diagram JK3104 A-BOARD PC IN IPOD IC4505 SUB5V Q4503 HDMI_5V_DET1 5V DET1 EEPROM JK4500 EEPROM DDC IIC1 IC4003 HDMI1 EEPROM Hundson2 IC7005 STB5V Video front-end, IC4500 STB+1.8V IC4501 Audio processor, Q4502 IC4503 Micom,HDMI-Receiver HDMI_5V_DET2 +1.8V 5V DET2 IC4506 HDMI SW JK4501...

  • Page 27: Block (2/2) Diagram

    9.3. Block (2/2) Diagram A-BOARD IC2301 AUDIO AMP P17V +17V SP_L+ SPEAKER_L SP_L- SPEAKER SP_R+ SP_R- SPEAKER_R SUB3.3V IC8001 Peaks-Lite2p (MAIN MCU+VIDEO SIGNAL PROCESSOR) IC4007 DO_UART_TX/RX Digital Video signal Digital Audio signal SBO2 SBI2 SERIAL I/F CH0 TS Serial HDMI_OPT_ENB IIC1 IIC1 SPDIF...

  • Page 29: Wiring Connection Diagram

    10 Wiring Connection Diagram 10.1. Caution statement. Caution: Please confirm that all flexible cables are assembled correctly. Also make sure that they are locked in the connectors. Verify by giving the flexible cables a very slight pull. 10.2. Wiring...

  • Page 31: Schematic Diagram

    11 Schematic Diagram 11.1. Schematic Diagram Notes...

  • Page 32: A-Board (1/11) Schematic Diagram

    11.2. A-Board (1/11) Schematic Diagram A-BOARD TXN/A10PSRS (1/11) IC8001 Peaks-Lite2,DDR MN2WS0047 Peaks-Lite2 B PORT (Sub Video LOSD OUT (for HQ1) FOR HQ1L VIDEO FOR ADV7493 TO 7/11 Input or Address) CPU BUS I/F POD,CI I/F IC8001 VOP21 LOSDOUT11 IC8001 VOP20 LOSDOUT10 TO 6/11 MVCLK...

  • Page 33: A-Board (2/11) Schematic Diagram

    11.3. A-Board (2/11) Schematic Diagram A-BOARD TXN/A10PSRS (2/11) DIGITAL(NAND,BOOT,ETC) ExBUS, BootROM/NOR FLASH, NAND, SUPPORT CARD R8518 AA_EA24 VI2P4 SUB3.3V SUB3.3V SUB3.3V R8599 R8604 XIRQ1 C8503 XIRQ3 0.1u R8517 TO 1/11 AA_XECS0 XECS0 XECS2 XECS2 XECS4 XECS4 AA_ED0 C8504 R8519 AA_ED1 0.1u AA_XERE XERE...

  • Page 34: A-Board (3/11) Schematic Diagram

    11.4. A-Board (3/11) Schematic Diagram A-BOARD TXN/A10PSRS (3/11) POWER SUPPLY DTV12V L5604 L5605 G1C100MA0203 J0JHC0000045 PA5601 C5631 C5632 PEAKS-LITE2 POWER ERBSE2R50U C5626 Q5601 IC7006 0.1u B1MBDDA00003 C5619 C5611 C0CBCYE00001 C5624 R5630 C5621 CTL1 STB3.3V STB5V 470p STB 3.3V 0.01u VJ5602 VJ7043 DRVH1 *C7058...

  • Page 35: A-Board (4/11) Schematic Diagram

    11.5. A-Board (4/11) Schematic Diagram A-BOARD TXN/A10PSRS (4/11) SOUND P17V C2300 C2330 C2329 C2341 C2337 C2342 470u C2340 0.1u 0.1u C2327 C2326 C2338 R2355 0.1u 3.3u 0.1u C2328 C2339 *R2394 R2397 L2331 AUDIO_R G1C330MA0291 AUDIO_R C2344 C2331 TO 7/11 *R2395 AUDIO_L 0.1u AUDIO_L...

  • Page 36: A-Board (5/11) Schematic Diagram

    11.6. A-Board (5/11) Schematic Diagram A-BOARD TXN/A10PSRS (5/11) AV TERMINAL,AVSW TP3001 COMPONENT1 R3001 D1_L TP3002 R3002 D1_R TP3003 R3003 D1_Y TP3004 R3004 TO 7/11 D1_PB TP3005 JK3001A R3028 D1_PR K4AK11A00001 AV TERMINAL JK3104 K1FB315A0006 TP3014 PC IN TP3106 TP3006 R3007 AV1 IN TO 7/11 V1_V...

  • Page 37: A-Board (6/11) Schematic Diagram

    11.7. A-Board (6/11) Schematic Diagram A-BOARD TXN/A10PSRS (6/11) INV PWM SUB9V Q4202 L4201 R4330 J0JYC0000068 B1ADCE000022 LITE2 TO 1/11 C4243 R4310 C4239 0.1u R4312 R4309 Q4201 IS0DATA AG_PWM_POW_ON B1ABCF000231 R4311 SUB3.3V C4328 R4325 0.1u R4317 2.7k Q4203 INV_PWM B1ABCF000231 R4320 PWMA R4327 2.7k...

  • Page 38: A-Board (7/11) Schematic Diagram

    11.8. A-Board (7/11) Schematic Diagram Lite2 TO 1/11 A-BOARD TXN/A10PSRS (7/11) VI1P9 VI1P9 UVIN9 D4005 R4085 VI1P8 MA2J72800L R4088 VI1P8 UVIN8 100k Q4004 VI1P7 HUDSON2 VI1P7 UVIN7 B1ABCF000231 VI1P6 Q4005 VI1P6 UVIN6 R4159 B1ABCF000231 VI1P5 VI1P5 UVIN5 Q4007 VI1P4 B1ABCF000231 VI1P4 UVIN4 R4091...

  • Page 39: A-Board (8/11) Schematic Diagram

    11.9. A-Board (8/11) Schematic Diagram A-BOARD TXN/A10PSRS (8/11) SUB5V C4522 C4523 C4526 L4508 6.3V J0JHC0000045 0.1u HDMI C4520 R4570 38.3k Vadj IC4506 HDMI_MUX_SEL2 HDMI_MUX_SEL2 R4571 HDMI_MUX_SEL1 C0CBCYE00001 HDMI_MUX_SEL1 HDMI3.3V DDC_SDA0 L4606 DDC_SDA0 J0JHC0000045 DDC_SCL0 DDC_SCL0 HDMI_RXCN HDMI_RXCN HDMI_RXCP HDMI_RXCP HDMI_RX0N HDMI_RX0N HDMI_RX0P HDMI_RX0P...

  • Page 40: A-Board (9/11) Schematic Diagram

    11.10. A-Board (9/11) Schematic Diagram A-BOARD TXN/A10PSRS (9/11) FrontEnd SUB5V L8306 J0JHC0000045 R8317 R8314 Q8300 2SB0709ASL AG_RF_AFT1 AG_RF_AFT1 TP8003 AC_TV1_R AC_TV1_R TO 7/11 TP8005 AC_TV1_V AC_TV1_V I2C, IFAGC R8338 TU8300 CH0CLK SUB1.2V CH0CLK ENG36E37KF SUB3.3V TUNER CH0DATA CH0DATA L8309 J0JHC0000045 L8308 TO 1/11 J0JHC0000045...

  • Page 41: A-Board (10/11) Schematic Diagram

    11.11. A-Board (10/11) Schematic Diagram A-BOARD TXN/A10PSRS (10/11) CONNECTOR etc ZA5408 ZA5413 ZA5415 ZA5400 ZA5406 TESA169 ZA5401 TESA169 ZA5401 ZA5405 ZA5400 ZA5411 SUFFIX:AB TESA169 ZA5412 TP007 TP001 *JS3077 ZA5414 ZA5407 ZA5411 LITE2 ZA5409 SUB3.3V TESA169 ZA5409 ZA5417 ZA5410 R8726 TESA169 ZA5403 ZA5410 ZA5402...

  • Page 42: A-Board (11/11) Schematic Diagram

    11.12. A-Board (11/11) Schematic Diagram TP4307 TP4306 R4385 5.5V TCON2.5V L4366 TP4308 A-BOARD TXN/A10PSRS (11/11) J0JHC0000046 VCOM T-CON 13.7V C4360 VCOM TP4309 AVDD L4367 J0JHC0000046 C4468 AVDD IC4200 FAULT 4.7u C4364 C4338 C4339 C4337 C4335 C4336 AVDD C0EBD0000299 IC4303 6.3V 0.1u 0.1u 0.1u...

  • Page 43: V-Board Schematic Diagram

    11.13. V-Board Schematic Diagram A-BOARD (A10) V-BOARD TXN/V10PTGS REMOTE RM2500 B3RAD0000127 R2512 POWER LED *D2500A SUFFIX C2501 C2502 B3AAB0000343 6.3V 0.01u *JS2501 *R2509 R2516 *R2504 Q2504 Q2500 B1ABCF000231 R2518 B1ABCF000231 *R2502 R2517 100k...

  • Page 44: Printed Circuit Board

    12 Printed Circuit Board 12.1. A-Board A-BOARD (FOIL SIDE) TXN/A10PSRS R4309 C5700 C4404 C4407 C4243 TP4344 D4422 Q 4 4 0 2 Q4201 Q 4 2 0 1 L4201 C4417 R4423 R4422 R4330 R4310 TP4234 TP1220 R8722 R8721 D4426 D4411 TP4309 TP8501 TP8500...
  • Page 45 A-BOARD (COMPONENT SIDE) TXN/A10PSRS R4477 R4478 C5702 D4434 C5701 R4480 Q4405 R8566 A 2 0 Q 4 4 0 5 R4406 C8379 C4720 A 1 4 ZA5413 ZA5408 R4401 R8593 Q 4 4 0 4 R4317 R4449 C8506 C4241 C4469 R4565 Q4203 D4416...

  • Page 46: V-Board

    12.2. V-Board V-BOARD (FOIL SIDE) TXN/V10PTGS T P 5 0 7 T P 5 0 2 T P 5 0 4 T P 5 0 1 P b F TNPA4834 1 S E E R E V E R S E F O R S U F F I X .

  • Page 47: Exploded View And Replacement Parts List

    13 Exploded View and Replacement Parts List 13.1. Exploded View and Mechanical Replacement Parts List 13.1.1. Exploded View...
  • Page 48 13.1.2. Accessories...
  • Page 49 13.1.3. Mechanical Replacement Parts List...
  • Page 50 Ref. Safety Part No. Part Name & Description Q'ty Remarks 10030-0047500 BATTERY COVER 1 PAVCA J0KG00000100 FILTER K0RB00700013 CONTROLE PANEL ASSY 1 CIRCUIT BOARD&PANERL PAVCA K2CB2YY00008 AC CORD 1 PAVCA L0AA16Z00002 SP UNIT L5EDD8Q00059 LCD PANEL 1 PAVCA N2QAYB000321 REMOTE CONTROLLER TBL2AX261SER PEDESTAL ASSY 1 PAVCA...

  • Page 51: Electrical Replacement Parts List

    13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
  • Page 52 13.2.2. Electrical Replacement Parts List Safety Ref. No. Part No. Part Name & Pcs Remarks Description Safety Ref. No. Part No. Part Name & Pcs Remarks C3218 F1G1H101A731 C 100PF, K, 50V Description C3219 F1G1H330A731 C 33UF, 50V C3701 F1H1A1050032 C 10UF, 50V K1FY124D0001 12P CONNECTOR PAVCA C4000...
  • Page 53 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C4243 F1G1C104A116 C 0.10UF, K, 16V C4532 F1J1A106A043 C 0.010UF, K, C4256 F1G1H331A730 C 330UF, 50V PAVCA C4600 F1G1C104A116 C 0.10UF, K, 16V C4257 F1G1H332A730 C 3300UF, 50V...
  • Page 54 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C5606 F1H1C105A145 C 0.01UF, K, 16V C8309 F1G1H102A730 C 1000UF, 50V C5607 F1G1H221A459 C 220UF, 50V C8310 F1G1C104A116 C 0.10UF, K, 16V C5611,12 F1K1C1060004 C 0.010UF, 16V C8311...
  • Page 55 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description D4430 MA2J1110GL DIODE IC7006 C0CBCYE00001 IC D4431 MAZ8047GML ZENER DIODE IC8001 MN2WS0047 D4432-35 MA2J1110GL DIODE IC8002 C3ABSY000036 IC D4436 B0BC4R700007 ZENER DIODE IC8004...
  • Page 56 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description Q2106 B1ABCF000231 TRANSISTOR R3115 ERJ2GEJ101 M 100 OHM, J,0.063W Q2350 B1ABCF000231 TRANSISTOR R3116,17 ERJ2GEJ220 M 22 OHM, Q2500 B1ABCF000231 TRANSISTOR J,0.063W Q2504...
  • Page 57 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R3249 ERJ2GEJ221 M 220 OHM, R4081 ERJ2GEJ473 M 47KOHM, J,0.063W J,0.063W R3252 ERJ2GEJ103 M 10KOHM, R4082 ERJ2GEJ220 M 22 OHM, J,0.063W J,0.063W R3265...
  • Page 58 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4160 ERJ2GEJ103 M 10KOHM, R4399 ERJ2GEJ101 M 100 OHM, J,0.063W J,0.063W R4161 ERJ2RKF20R0X M 20 OHM, , PAVCA R4401-03 ERJ2GEJ101 M 100 OHM,...
  • Page 59 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4561 ERJ2GEJ473 M 47KOHM, R5484 ERJ2GEJ203X J,0.063W 20KOHM,J,0.063W R4564,65 ERJ2GEJ220 M 22 OHM, R5486,87 ERJ2GEJ473 M 47KOHM, J,0.063W J,0.063W R4567 D1BB4701A055 M 4.7KOHM, 1/10W...
  • Page 60 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8082 ERJ2RKF75R0 M 75 OHM, , R8532 ERJ2GEJ560X M 56 OHM, 0.063W J,0.063W R8083 ERJ2GEJ301 M 300 OHM, R8540-45 ERJ2GEJ220 M 22 OHM,...
  • Page 61 Any attempt to service or repair the product or products dealt with in this Service Bulletin by anyone else could result in serious injury or death. 2009 Panasonic Corporation of North America. All rights reserved. Unauthorized copying and distribution is a violation of law.

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