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Panasonic TH-L32X50D Service Manual
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Panasonic TH-L32X50D Service Manual

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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.) --------------------------------------------------------- 3
2 Warning -------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 4
2.2. About lead free solder (PbF)---------------------------- 5
3 Service Navigation ----------------------------------------------- 6
3.1. Service Hint ------------------------------------------------- 6
4 Specifications ----------------------------------------------------- 7
5 Service Mode ------------------------------------------------------ 9
5.1. How to enter into Service Mode ----------------------- 9
5.1.1. Contents of adjustment mode --------------------- 9
5.1.2. How to exit---------------------------------------------- 9
5.2. SRV-TOOL -------------------------------------------------10
5.2.1. How to access ----------------------------------------10
5.2.2. Display of SOS History -----------------------------10
5.2.3. POWER ON TIME/COUNT -----------------------10
Model No.
Chassis:
Destination:
PAGE
5.2.4. Exit ------------------------------------------------------ 10
5.2.5. Self Check Mode ------------------------------------ 11
5.2.6. Hotel Mode Adjustment ---------------------------- 11
5.2.7. Hotel Mode-------------------------------------------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Exit ------------------------------------------------------ 12
6.1.3. Screen display --------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 13
6.3. No Power--------------------------------------------------- 13
7.1. SP Bracket------------------------------------------------- 14
7.2. Vesa Metal Assembly ----------------------------------- 15
7.3. LCD Panel Fixing & Handling Method -------------- 17
7.4. Barrier LCD ----------------------------------------------- 18
7.5. LED Panel Assembly------------------------------------ 19
7.6. Back Cover Screw --------------------------------------- 20
7.7. P-Print Assy ----------------------------------------------- 21
7.8. Bottom Cover --------------------------------------------- 23
ORDER NO. PAVCI1204016CE
TH-L32X50D
KM16
INDIA
© Panasonic Corporation 2012. Unauthorized
copying and distribution is a violation of law.
LCD TV
PAGE

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  • Page 1 7.6. Back Cover Screw --------------------------------------- 20 5.2.2. Display of SOS History -----------------------------10 7.7. P-Print Assy ----------------------------------------------- 21 7.8. Bottom Cover --------------------------------------------- 23 5.2.3. POWER ON TIME/COUNT -----------------------10 © Panasonic Corporation 2012. Unauthorized copying and distribution is a violation of law.
  • Page 2 TH-L32X50D 7.9. Stand MTG & Pedestal MTG -------------------------- 24 8 Measurements and Adjustments -------------------------- 25 8.1. Voltage chart of A-board-------------------------------- 25 8.2. Voltage chart of P-board-------------------------------- 25 9 Block Diagram --------------------------------------------------- 26 9.1. Main Block Diagram ------------------------------------- 26 10 Wiring Connection Diagram --------------------------------- 27 10.1.
  • Page 3 TH-L32X50D 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 TH-L32X50D 2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor [chip] components.
  • Page 5 TH-L32X50D 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).
  • Page 6 TH-L32X50D 3 Service Navigation 3.1. Service Hint Board Name Main Device Remarks A BOARD AVSW, TUN, OFDM, P-SLD2, EEP Repairable P BOARD Power Supply Repairable K BOARD Remote, LED, Luminunce Sensor Repairable...
  • Page 7 TH-L32X50D 4 Specifications Power Source AC 110 - 240 V, 50 / 60 Hz Power Consumption Power Rating 60 W Standby Condition 0.25 W Display panel Panel system LED LCD panel Visible screen size (diagonal) 82 cm / 32 inches 1,049,088 (1,366 (W) ×...
  • Page 8 TH-L32X50D RCA PIN Type × 2 AV3 IN AUDIO L-R 0.5 V [rms] RCA PIN Type × 1 1.0 V [p-p] (75 Ω) VIDEO HDMI 1 / 2 / 3 input TYPE A Connectors • This TV supports ‘HDAVI Control 5’ function.
  • Page 9 TH-L32X50D 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. Contents of adjustment mode 5.1.1. • Value is shown as a hexadecimal number.
  • Page 10 TH-L32X50D 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.
  • Page 11 TH-L32X50D 5.2.5. Self Check Mode 1. Press the ‘MENU’ button (on the remote control) and the ‘VOL DOWN’ button on the LCD panel. 2. Press ON/OFF button on the panel to Exit. 5.2.6. Hotel Mode Adjustment 1. Press the ‘VOLUME DOWN’ button on the TV panel and simultaneously press the INPUT button on the remote control 3 times to enter Hotel Mode.
  • Page 12 TH-L32X50D 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 TH-L32X50D 6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:...
  • Page 14 TH-L32X50D 7 Disassembly and Assembly Instructions 7.1. SP Bracket 1. Fix Sp. Bracket to LCD panel with screw (Fig. A). 2. Fix Speaker Unit (L&R) to Sp. Bracket (Fig. B). No Item Description 043 TKX5ZA02301 SP BRACKET 058 XYN3+F8FJ SCREW...
  • Page 15 TH-L32X50D 7.2. Vesa Metal Assembly 1. Fix Vesa Metal to LCD panel (Fig. A). 2. Fix Metal Bracket A-PCB to LCD panel (Fig. B). 3. Fix metal bracket bottom by screw.
  • Page 16 TH-L32X50D No Item Description 046 TKZ5ZX5008 VESA METAL 044 TKZ4GG5014 METAL_BRACKET-A_PCB 047 TKZ5ZX5010 METAL BRACKET BOTTOM 067 THEJ036J SCREW...
  • Page 17 TH-L32X50D 7.3. LCD Panel Fixing & Handling Method 1. Place down the cabinet as shown below. 2. Fix LCD panel into the cabinet by taking below precautions. Other general precautions 1. Do not press panel surface to avoid blue spot on the panel display.
  • Page 18 TH-L32X50D 7.4. Barrier LCD 1. Fix LVDS Cable to bottom LCD panel (Fig. A). 2. Stick LVDS cable & A10~K10 wire with pet tape (Fig. A). 3. Stick barrier LCD to LCD Panel (Fig. B). No Parent Item Description 063 TK3M...
  • Page 19 TH-L32X50D 7.5. LED Panel Assembly 1. Prepare LED panel Assy (Fig. A). 2. Fix LED panel assy to Cabinet complete assy (Fig. B). 3. Fix LCD panel to Cabinet assy (Fig. C). No Item Description 041 TKK5ZC50201 LED PANEL 040 TKK5ZC50141...
  • Page 20 TH-L32X50D 7.6. Back Cover Screw 1. Fix screw to Back Cover. 2. Install M6 cap to Back Cover. No Item Description 073 THTD030J SCREW 072 THEC1509 SCREW 037 XTV3+8GFJK SCREW(AV1) 030 TKKL5521 M6_CAP 102 TMK4GX113 WASHER...
  • Page 21 TH-L32X50D 7.7. P-Print Assy 1. Fixing P-print to LCD panel. 2. Fix Spacer(P-pcb - 6 pcs) & Key Button to P-print. 3. Fix thermal pad to heat sink, peel-off sepatator behind heat sink and stick to LCD panel. 4. Fixing A-print to LCD panel.
  • Page 22 TH-L32X50D No Item Description 064 TMME399 SPEACER (P-PCB) 061 TBX5ZA00301 KEY BUTTON 045 TKZ5ZF50162 METAL AV BRACKET SIDE 067 THEJ036J SCREW 062 TUC5ZJ50041 HEATSINK 069 TMKK481 THERMAL PAD...
  • Page 23 TH-L32X50D 7.8. Bottom Cover Fix Bottom Cover to Metal Bracket bottom. No Item Description 042 TKP5ZA13801 BOTTOM COVER 1 PC...
  • Page 24 TH-L32X50D 7.9. Stand MTG & Pedestal MTG Prepare screw packing kit (Fig. C). Insert Stand Mtg into bag. Fold bag and put screw packing kit as shown (Fig. A). Stick with Yellow Tape (Fig. B). No Item Description 022 TBL5ZX03761...
  • Page 25 TH-L32X50D 8 Measurements and Adjustments 8.1. Voltage chart of A-board Set A-Board to a dummy set and check the satisfaction with the specified voltage as following table. Power Supply Name Measurement Point Specification (V) SUB1.8V TP8700 1.74 - 1.90 SUB1.2V TP8100 1.18 - 1.32...
  • Page 26 TH-L32X50D 9 Block Diagram 9.1. Main Block Diagram Flont Panel LED Information CPU BUS REMOCON ILLUMINANCE CTRL DATA Reciever Sensor S5/ S3.3 STB5/5VS S12/S5 XNMIRQ G_LED_ON > XIRQ1 SD_LED_ON > (SD-Data-VCC) R_LED_ON XECS1 XERE > > RMIN > AI_SENSOR >...
  • Page 27 TH-L32X50D 10 Wiring Connection Diagram 10.1. Wire Dressing 1. Fix clamper (2 pcs). 2. Wiring No 1~ No 2. 3. Stick gaasket (1). 4. Install PET tape (1). No Item Description 065 TMME268 CLAMPER(LCD2) 068 T4FP1505J PET TAPE Clamper Wire No.1...
  • Page 28 TH-L32X50D 11 Schematic Diagram 11.1. Schematic Diagram Notes...
  • Page 29 TH-L32X50D 11.2. A-Board (1/17) Schematic Diagram...
  • Page 30 TH-L32X50D 11.3. A-Board (2/17) Schematic Diagram...
  • Page 31 TH-L32X50D 11.4. A-Board (3/17) Schematic Diagram...
  • Page 32 TH-L32X50D 11.5. A-Board (4/17) Schematic Diagram...
  • Page 33 TH-L32X50D 11.6. A-Board (5/17) Schematic Diagram...
  • Page 34 TH-L32X50D 11.7. A-Board (6/17) Schematic Diagram...
  • Page 35 TH-L32X50D 11.8. A-Board (7/17) Schematic Diagram...
  • Page 36 TH-L32X50D 11.9. A-Board (8/17) Schematic Diagram...
  • Page 37 TH-L32X50D 11.10. A-Board (9/17) Schematic Diagram...
  • Page 38 TH-L32X50D 11.11. A-Board (10/17) Schematic Diagram...
  • Page 39 TH-L32X50D 11.12. A-Board (11/17) Schematic Diagram...
  • Page 40 TH-L32X50D 11.13. A-Board (12/17) Schematic Diagram...
  • Page 41 TH-L32X50D 11.14. A-Board (13/17) Schematic Diagram...
  • Page 42 TH-L32X50D 11.15. A-Board (14/17) Schematic Diagram...
  • Page 43 TH-L32X50D 11.16. A-Board (15/17) Schematic Diagram...
  • Page 44 TH-L32X50D 11.17. A-Board (16/17) Schematic Diagram...
  • Page 45 TH-L32X50D 11.18. A-Board (17/17) Schematic Diagram...
  • Page 46 TH-L32X50D 11.19. K-Board Schematic Diagram...
  • Page 47 TH-L32X50D 11.20. P-Board Schematic Diagram...
  • Page 48 TH-L32X50D 12 Printed Circuit Board 12.1. A-BOARD A-BOARD (TOP COMPONENT SIDE) TNP4G526 C N 0 1 0 1 C N 0 1 0 0 I C 8 9 0 1 I C 5 6 0 2 J K 1 0 3 0...
  • Page 49 TH-L32X50D A-BOARD (BOTTOM COMPONENT SIDE) TNP4G526 Q 0 9 0 0 J K 1 0 3 1 S I F O U T S I F O U T I F A G C V I E O O U T...
  • Page 50 TH-L32X50D 12.2. K-BOARD K-BOARD (TOP COMPONENT SIDE) TNPA5604 S U F F I X . C R N O . 2 R 2 8 0 3 R 2 8 0 9 D 2 8 0 3 R 2 8 0 4...
  • Page 51 TH-L32X50D 12.3. P-BOARD P-BOARD (TOP COMPONENT SIDE) TNPA5596 J 1 0 8 J 1 0 8 7 5 0 2 - H E A T 0 C 7 5 1 1 C 7 5 1 2 C 7 5 0 2...
  • Page 52 TH-L32X50D P-BOARD (BOTTOM COMPONENT SIDE) TNPA5596 J 1 0 8 D 7 5 0 2 - H E A T 0 7 5 1 2 7 5 1 1 7 5 0 2 D 7 5 1 0 D 7 5 1 0...
  • Page 53 TH-L32X50D 13 Exploded View and Replacement Parts List 13.1. Exploded View and Mechanical Replacement Parts List Please click the radio button for ‘Diagrams ll/Parts List’ on the menu bar. 13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
  • Page 54 Diode D4173 B0BC01700030 A Board SERVICE BOM 32X50D D5480 B0JCCE000021 A Board D4150 B0JCDE000006 A Board Electrical Part Replacement list D4152 B0JCDE000006 A Board REF No. PART No. DESCRIPTION PARENT D4153 B0JCDE000006 A Board D4154 B0JCDE000006 A Board IC8702 C0DBAFG00029 A Board D4159 B0JCDE000006...
  • Page 55 D7302 B0HAGQ000001 P Board C8301 F1G1H7R00009 C, 7pF, 50V A Board D7320 B0JAME000126 P Board C5000 F1H1A105A099 C,1uF,10V A Board Capacitor C5002 F1H1A105A099 C,1uF,10V A Board C5613 EEEHB0J221UP E, 220uF, 6.3V A Board C5012 F1H1A105A099 C,1uF,10V A Board C5618 EEEHB0J221UP E, 220uF, 6.3V A Board C5476...
  • Page 56 C4909 F1J1E105A256 C, 1.0uF , 25V A Board C8047 F1G1C104A077 C, 100KpF, 16V A Board C4918 F1J1E105A256 C, 1.0uF , 25V A Board C8050 F1G1C104A077 C, 100KpF, 16V A Board C4175 F1J1E475A257 C, 4.7uF, 25V A Board C8051 F1G1C104A077 C, 100KpF, 16V A Board C4176 F1J1E475A257...
  • Page 57 C3167 F1G1H561A830 C,560pF ,50V A Board C4163 F1K1E106A134 C, 10uF , 25V A Board C3168 F1G1H561A830 C,560pF ,50V A Board C4164 F1K1E106A134 C, 10uF , 25V A Board C3107 F1H1A105A099 C,1uF,10V A Board C4907 F1K1E106A134 C, 10uF , 25V A Board C3110 F1H1A105A099 C,1uF,10V...
  • Page 58 R8660 D0GA101JA023 M, 100 OHM A Board R4552 D0GA560JA023 M, 56 OHM A Board R8662 D0GA101JA023 M, 100 OHM A Board R8624 D0GA560JA023 M, 56 OHM A Board R8663 D0GA101JA023 M, 100 OHM A Board R8625 D0GA560JA023 M, 56 OHM A Board R8666 D0GA101JA023...
  • Page 59 R4265 EXB28VR000X M,0OHM A Board R8910 D0GA103JA023 M, 10K OHM A Board R4266 EXB28VR000X M,0OHM A Board R8755 D0GA104JA023 M, 100K OHM A Board R4267 EXB28VR000X M,0OHM A Board R4978 D0GA153JA023 M,15K OHM A Board R2006 D0GA101JA023 M, 100 OHM A Board R4979 D0GA153JA023...
  • Page 60 R5173 D0GAR00J0005 M, 0 OHM A Board R1951 D0GA680JA023 M, 68 OHM A Board R5178 D0GAR00J0005 M, 0 OHM A Board R1953 D0GA103JA023 M, 10K OHM A Board R8592 D0GAR00J0005 M, 0 OHM A Board R1955 D0GAR00J0005 M, 0 OHM A Board R8641 D0GAR00J0005...
  • Page 61 R7102 D0GF105JA048 M,1M OHM P Board L3106 J0ZZB0000142 A Board R7103 D0GF105JA048 M,1M OHM P Board L4001 J0ZZB0000147 A Board R7835 D0GDR00J0004 M,0 OHM A Board L4002 J0ZZB0000147 A Board R7819 D1BD1203A066 M,120K OHM P Board L4005 J0ZZB0000147 A Board R7521 D1BD1202A066 M,12K OHM...
  • Page 62 K1KA07B00135 Connector A Board CN0100 K1KA14A00248 Connector A Board K1KY04B00013 Connector A Board K1KY16BA0394 Connector A Board K1MY60BA0526 Connector A Board JK8850 K1NA12E00016 Connector A Board JK3300 K2HC1YYB0076 AV Terminal A Board RM2800 PNJ4815M01TV Remocon Sensor KA Board D2800A B3AGB0000065 KA Board SN2800 B3JB00000116...
  • Page 63 Model No. : TH-L32X50K Parts Location...
  • Page 64 Model No. : TH-L32X50K Packing Exploded View...
  • Page 65 Mechanical Part Replacement List TTY4WA0050-A Cabinet Assy. TTU4WA0065-A Back Cover Assy. TBL5ZX3601-A Pedestal Assy. TNP4G526MB A Board Assy. TNPA5596EC P Board Assy. TNPA5604BD KA Board Assy. K2C4WP2YY058 AC Cord L0EYAA000006 Speaker Unit L L0EYAA000007 Speaker Unit R TSCKF0010005 LVDS Cable VVX32H125G00 LCD PANEL TBX5ZA00301...

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