Panasonic TC-L37S1 Service Manual
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Panasonic TC-L37S1 Service Manual

32 inch/37 inch class 1080p lcd hdtv
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32 inch/37 inch Class 1080p LCD HDTV
Model No.
LH91 Chassis
© Panasonic Corporation 2009.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.MTNC090213CE
TC-L37S1
TC-L32S1
B05 Canada: B07

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Summary of Contents for Panasonic TC-L37S1

  • Page 1 ORDER NO.MTNC090213CE B05 Canada: B07 32 inch/37 inch Class 1080p LCD HDTV TC-L37S1 Model No. TC-L32S1 LH91 Chassis © Panasonic Corporation 2009. Unauthorized copying and distribution is a violation of law.

  • Page 2: 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 3: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    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 4: 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 5: Service Navigation

    3 Service Navigation 3.1. 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 None serviceable P-Board should be exchanged for service. Control Panel Assy Control Button, Power switch None serviceable Control Panel Assy should be exchanged for service.

  • Page 6: Specifications

    27.5 inch × 15.4 inch × 31.5 inch (698 mm × 392 mm × 801 mm) (TC-L32S1) 32.2 inch × 18.1 inch × 37.0 inch (819 mm × 460 mm × 940 mm) (TC-L37S1) 2,073,600 (1,920 (W) × 1,080(H)) [5,760 × 1,080 dots] (No.

  • Page 7: How To Enter Into 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 8: How To Access

    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 9: 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 10: 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 11: 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 12 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 13: Pedestal Assy

    7 Disassembly and Assembly Instructions 7.1. Pedestal assy 7.3. AC cord 1. Lay down the unit so that the rear cover faces upward. 1. Remove the bushing of the AC cord from the AC cord 2. Remove the 4 screws. cover.

  • Page 14: Side Av Bracket

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

  • Page 15: A-P-Mtg Metal

    7.9. A-P-MTG Metal 7.11. LCD MTG 1. Remove the 6 screws. 1. Remove the 4 screws (G). 2. Remove the A-P-MTG Metal. 2. Remove the 4 screws (H). 3. Remove the LCD BTM MTG and LCD bottom corner BTG. 7.12. LCD Panel 1.
  • Page 16 7.13. V-Board 1. Remove the 1 screw. 2. Disconnect the connector (V10). 3. Remove the V-Board.

  • Page 17: Emi Processing (37 Inch)

    7.14. EMI processing (37 inch)

  • Page 21: Emi Processing (32 Inch)

    7.15. EMI processing (32 inch)

  • Page 24: Measurements And Adjustments

    8 Measurements and Adjustments 8.1. Voltage chart of P-board VOLTAGE TEST POINT SPECIFICATION (Reception state) 5.136 TP2831 5.2 ± 0.26 V 3.305 TP5480 3.3 ± 0.16 V 1.261 TP5602 1.26 ± 0.06 V 1.835 TP5601 1.83 ± 0.09 V 3.309 TP5600 3.3 ±...

  • Page 25: Picture Level Adjustment (Rf)

    8.3. Picture level adjustment (RF) Instrument Name Remarks 1. REMOTE TRANSMITTER 2. Ex. Signal (Split color bar) Adjustment or Inspection Procedure Remarks <procedure> 1. Receive the split color bar. (Screen mode: ZOOM or FULL Picture mode: DYNAMIC AI: OFF AI Picture: OFF) *BACK LIGHT +30 <Inspection>...

  • Page 27: Block Diagram

    9 Block Diagram 9.1. Main Block Diagram $%2$5' 0+] ,)' 76 6HULDO )5217 (1' 'LJLWDO $QDORJ &/2&. 0+] 7XQHU ((3520 ((3:3 ''5 6'5$0 0+] +'0, ,,& +'0, +'0, 76 6HULDO +'0, 5(6(7 +'0, +'0, 5HFHLYHU 'LJLWDO YLGHR VLJQDO +'0, $' FRQYHUWHU )/$6+ $8',2 $QDORJ...
  • Page 28 9.2. Block (1/2) Diagram -. -. -. &20321(7 9,'(2 9,'(2 3& ,1 $%2$5' 78 781(5 $1$/2* ,& )5217(1' ,,& ,& $9 6: ,)' ',*,7$/ ',*,7$/ '(02'8/( ,) $*& 9,'(2 68%9 <&9 ,,& 68%9 9,'(2 ,& ,,& %79 %79 &203 <3%35 68%9 3&...
  • Page 29 9.3. Block (2/2) Diagram -. -. -. $%2$5' +'0, +'0, +'0, $8',2 352&(6625 ,& ,& +'0, 5[$' &219 $8',2 $03 /  +'0, 63($.(5 / /  63($.(5 +'0, 3:0 287 5  63($.(5 5 +'0, 5  9 626 '(7 0$,1 9,'(2 ''&$B,,& +3 287 +($'3+21( ''&%B,,&...

  • Page 31: 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 (32 inch)

  • Page 32: Wiring (37 Inch)

    10.3. Wiring (37 inch)

  • Page 33: Schematic Diagram

    11 Schematic Diagram 11.1. Schematic Diagram Notes...
  • Page 34 11.2. A-Board (1/11) Schematic Diagram 3HDNV /LWH ,& 01:6 ''5B ,& &$%6< 5 /26' 287 IRU =:(, )25 =:(, 9,'(2 )25 $'9 % 3257 6XE 9LGHR ,QSXW RU $GGUHVV &38 %86 ,) 0&/. $( ,& 9B''5,) 72  72  72  32'&, ,) 7676(/...
  • Page 35 11.3. A-Board (2/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 68%9 5 5 ;(&6 72  68%9 68%9 ;(&6 73 )$&725< 86( & X )URP 3($.6/LWH,, 5 (;%+9-9 $$B(' 1& 5 9&& N 72  $$B(' 73 5 72  $$B(' 5 9,&/....
  • Page 36 11.4. A-Board (3/11) Schematic Diagram 68%9 73 ' %79 73 3$ 5 / / 0$;/ =$ .+$ *&0$ *&0$ =$ 7(6$ 5 0$,1B9 0$,19 =$ & ' & =$ 68%9 7(6$ 0$,19 0$,19 %%& 68%9 73 73 =$ =$ 5 5 7(6$ &...
  • Page 37 11.5. A-Board (4/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 23(5$7( 0$,19 4 73 5 %$'&( 7R 626 $*B6281'B626 5 & N 5 X N 6281'9&& 5 ,& 5 N & &$% & & X 5 $8',2 $03 X 23(5$7( X 087(...
  • Page 38 11.6. A-Board (5/11) Schematic Diagram 72  73 5 $'B6'$ $%2$5'  3/B((3520 5 73 *HQ; -. $'B6&/ /LWH 6'$ 68%9 73 .)%$ 73 72  /LWH 6&/ ' 7;1$34*6 LQFK 5 73 3& ,1 & 3&B5 ' *HQ; ((3520 *HQ;...
  • Page 39 11.7. A-Board (6/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 68%9 )$&725< 68%9 72  5 5 73 8$57 /,7(*HQ; 5 *3($.6B6(5,$/B6%2 6%, *3($.6B6(5,$/B6%, 5 6%2 73 ' 5 0$;$/ *+'0,B&(&B38B21 72  73 $*B+'0,B&(& $*B+'0,B&(& 73 $*B+'0,B9B'(7 $*B+'0,B9B'(7 $*B+'0,B9B'(7 $*B+'0,B9B'(7 $*B+'0,B9B'(7 $*B+'0,B9B'(7...
  • Page 40 11.8. A-Board (7/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 0$,19 / --+& & 9 72  5 5 09&/. /9'6B&/.2) 09&/. 73 6,'( 5 72  5 $*B3$1(/B$*: 4 /LWH 5 & %$%&) $*B3$1(/B7(67B21 ..%% 3$1(/ 6,'( X 5 & (;%+9-9...
  • Page 41 11.9. A-Board (8/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 5 67%9 5 $*B+'0,B9B'(7 ' ' 5 0$-/ %%&5$ 5 ' %%&5$ 5 67%9 5 72  / ' 73 --<& ''&'B6'$ ''&'B6'$ 5 0$-/ ''&6'$ 4 / 5 72  --<& ''&'B6&/...
  • Page 42 11.10. A-Board (9/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 72  72  3HDNV $9& 0$,1B<&9%6 0$,1B<&9%6 3& 5*%ELW 0$,1B3%& 9,3 0$,1B3%& 9,3 %&E&U 0$,1B35 9,3 0$,1B35 9,3 %&E&U 5*%B&9%6 9,3 %&E&U 5*%B&9%6 9,3 9,3 %&E&U 9,3 3&B+6 3&B+6 9,3 %&E&U...
  • Page 43 11.11. A-Board (10/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 3RZHU6XSSO\ 79''B9 9$9''B9 '9''B9 &$% 68%9 & & & 9 X 9 X X 9 '*1' ,& ,& 79'' '*1' ,& ,& '9'' '*1' ,& $*1' ,& ,& 9$9'' '*1' ,& ,&...
  • Page 44 11.12. A-Board (11/11) Schematic Diagram $%2$5'  7;1$34*6 LQFK 7;1$35*6 LQFK 68%9 / --+& 5 5 4 72  6%$6/ $*B5)B$)7 $*B5)B$)7 72  73 $&B79B5 $&B79B5 73 $&B79B/ $&B79B/ 73 $&B79B9 $&B79B9 ,& ,)$*& 5 68%9 68%9 72  &+&/.
  • Page 45 11.13. V-Board Schematic Diagram $%2$5' $ & 9%2$5' 713$$%6 5(027( 50 %5$' 5 32:(5 /(' '$ 68)),; & & %$$% 9 X -6 5 5 5 4 4 %$%&) 5 %$%&) 5 5 N...

  • Page 46: Printed Circuit Board

    12 Printed Circuit Board 12.1. A-Board A-BOARD (FOIL SIDE) TXN/A10PRGS(32 INCH) TXN/A10PQGS(37 INCH) TP4855 R8721 R8722 R1235 TP8575 R8615 TP1109 TP1111 TP4830 TP4815 TP4814 TP4831 TP4812 TP4817 R1254 R8614 R4882 R1239 TP1110 TP8574 R1253 ZA5409 TP4856 TP8516 L4802 C4801 TP4806 R8019 TP1108 R8020...
  • Page 47 Parts Location Parts Location A-BOARD (FOIL SIDE) A-BOARD (COMPONENT SIDE) TRANSISTOR TRANSISTOR IC1102 Q2301 IC1103 Q2063 IC2008 Q2302 IC2301 Q2064 IC3001 Q4500 IC2302 Q2065 IC4511 Q4501 IC4202 Q2303 IC4513 Q4535 IC4510 Q2304 IC4700 Q4536 IC4512 Q2309 IC5451 Q4801 IC5405 Q4514 IC5480 Q5417 IC5409...
  • Page 48 A-BOARD (COMPONENT SIDE) TXN/A10PRGS(32 INCH) TXN/A10PQGS(37 INCH) C5687 A 1 7 R8566 C5698 A 2 0 C5695 R4828 Q4800 ZA5408 FL4800 FL4801 FL4802 FL4803 FL4804 C1139 C4805 R4863 Q 4 8 0 0 Q4807 R1244 IC1103 R8573 R1205 R1201 R4827 I C 8 5 0 2 L8500 Q 4 8 0 3...
  • Page 49 12.2. V-Board V-BOARD (FOIL SIDE) TNPA4834ABS 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 51: 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 52 13.1.2. Accessory...

  • Page 53: Mechanical Replacement Parts List

    13.1.3. Mechanical Replacement Parts List...
  • Page 54 Ref. Safety Part No. Part Name & Description Q'ty Remarks 10030-0047500 BATTERY COVER 1 PAVCA K0RB00700013 CONTROLE PANEL ASSY 1 CIRCUIT BOARD&PANERL PAVCA K1PY51Y00019 LVDS LEAD 1 PAVCA 32 INCH K1PY51Y00021 LVDS LEAD 1 PAVCA 37 INCH K2CB2YY00006 AC CORD 1 PAVCA 37 INCH K2CB2YY00008 AC CORD...
  • Page 55 Ref. Safety Part No. Part Name & Description Q'ty Remarks TXFKY010PQG CABINET ASSY 1 PAVCA 37 INCH TXFKY010PRG CABINET ASSY 1 PAVCA 32 INCH TXFPE01RLTU CLEANING CLOTH ASSY TXJA100PRG SPEAKER LEAD (A10-V10) 1 PAVCA 32 INCH TXJA150PQG SPEAKER LEAD (A15-SP) 1 PAVCA 37 INCH XTB4+12JFJ SCREW...

  • Page 56: Electrical Replacement Parts List

    13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
  • Page 57 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 C2321 F1H1H104A970 C 0.1UF, K, 50V Description C2323 F1H1H104A970 C 0.1UF, K, 50V C2333 F1J1E3340003 C 0.33UF, Z, 25V K1KA03A00632 3P CONNECTOR C2335...
  • Page 58 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C4346 F1G1C103A116 C 0.010UF, K, C5462 F1G1C104A116 C 0.10UF, K, 16V C5463 F1K1C1060004 C 0.010UF, 16V C4347 F1G1C104A116 C 0.10UF, K, 16V C5480 F1G1C103A116 C 0.010UF, K, C4348...
  • Page 59 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C8032 F1J1A106A043 C 0.010UF, K, D2305 MA2J72800L ZENER DIODE D2306-08 MA2J11100L DIODE C8033,34 F1G1C104A116 C 0.10UF, K, 16V D2500A B3AAB0000343 LED PAVCA...
  • Page 60 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description IC8004 C0ZBZ0001030 IC Q4800,01 B1ABCF000231 TRANSISTOR IC8300 MN88436 PAVCA Q4802 B1ADCE000022 TRANSISTOR IC8502 TVRQ535AAS PAVCA Q4803-07 B1ABCF000231 TRANSISTOR IC8503 TVRQ539S PAVCA...
  • Page 61 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R1274 ERJ2GEJ104 M 100KOHM, R2377 ERJ2GED563X M 56KOHM J,0.063W ,J,0.063W R1283-85 ERJ2GEJ473 M 47KOHM, R2379 ERJ2GEJ103 M 10KOHM, J,0.063W J,0.063W R2002...
  • Page 62 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R3099 ERJ2GEJ680 M 68 OHM, R4605 ERJ2GEJ103 M 10KOHM, J,0.063W J,0.063W R3100 ERJ2GEJ101 M 100 OHM, R4606 D1BB9101A055 M 9.1KOHM, 1/10W J,0.063W R4607 D0YAR0000007 M 0 OHM 1/4W...
  • Page 63 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4721 ERJ2GEJ680 M 68 OHM, R5431 ERJ2GEJ103 M 10KOHM, J,0.063W J,0.063W R4723 ERJ2GEJ103 M 10KOHM, R5432 ERJ2GEJ473 M 47KOHM, J,0.063W J,0.063W R4726...
  • Page 64 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8001 ERJ2GEJ221 M 220 OHM, R8328 ERJ2GEJ101 M 100 OHM, J,0.063W J,0.063W R8002 ERJ2GEJ560X M 56 OHM, R8329 ERJ2GEJ220 M 22 OHM, J,0.063W...
  • Page 65 Safety Ref. No. Part No. Part Name & Pcs Remarks Description TXN/A10PRGS CIRCUIT BOARD A (RTL)PA VCA 32 inch TXN/A10PQGS CIRCUIT BOARD A (RTL)PA VCA 37 inch TNPA4834ABS CIRCUIT BOARD V (RTL)PA TU8300 ENGE6609KF TUNER PAVCA K1KA07B00135 7P CONNECTOR PAVCA X1101 H0J100500035 CRYSTAL X2010...

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