Table of Contents
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Service Manual
Specifications
(Informations in brackets [ ] refers to model 32")
Power Source:
Rated Power Consumption:
Stand-by Power Consumption: 0.25W (Without monitor out recording)
Aerial Impedance:
Receiving System:
Receiving Channels:
Operating Conditions:
220-240V AC, 50Hz
141W [98W]
13W (With monitor out recording)
75Ω unbalanced, Coaxial Type
PAL-I
PAL-525/60 (AV only)
DVB-T (via UHF aerial input)
M.NTSC (AV only)
NTSC (AV only)
UHF E21-E69
0°C ÷ 35°C
Temperature:
Humidity: 20% ÷ 80% RH (non condensing)
Colour LCD Television
GLP25 Chassis
ORDER No. PCZ1003028CE
REVISION 3
TX-L32U2B
TX-L37U2B
© Panasonic Corporation 2010.
Unauthorized copying and
distribution is a violation of law.
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Table of Contents
Related Manuals for Panasonic TX-L32U2B
Summary of Contents for Panasonic TX-L32U2B
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Page 1: Service Manual
DVB-T (via UHF aerial input) M.NTSC (AV only) NTSC (AV only) Receiving Channels: UHF E21-E69 0°C ÷ 35°C Operating Conditions: Temperature: Humidity: 20% ÷ 80% RH (non condensing) © Panasonic Corporation 2010. Unauthorized copying and distribution is a violation of law. - Page 2 Intermediate Frequency: Video/Audio Video 38.9MHz Audio 32.90MHz 32.35MHz(NICAM) Colour 34.47MHz Terminals: AV1 IN Video (21 pin) 1.0V p-p 75Ω Audio (21 pin) 500mV rms 10kΩ RGB (21 pin) 0.7V p-p 75Ω AV1 OUT Video (21 pin) 1.0V p-p 75Ω Audio (21 pin) 500mV rms 1kΩ AV2 IN Video (21 pin) 1.0V p-p 75Ω...
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Page 3: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ................4 GENERAL GUIDE LINES..............4 TOUCH – CURRENT CHECK.............. 4 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES ......5 ABOUT LEAD FREE SOLDER (PBF)............6 SUGGESTED PB FREE SOLDER............6 APPLICABLE SIGNALS................7 SERVICE HINTS .................. -
Page 4: Safety Precautions
Safety Precautions General Guide Lines 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. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. -
Page 5: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices
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"... -
Page 6: About Lead Free Solder (Pbf)
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 7: Applicable Signals
Applicable Signals Component (Y, Pb, Pr), HDMI Signal name COMPONENT HDMI 525 (480) / 60i 525 (480) / 60p 625 (576) / 50i 625 (576) / 50p 750 (720) / 60p 750 (720) / 50p 1,125 (1,080) / 60i 1,125 (1,080) / 50i 1,125 (1,080) / 60p 1,125 (1,080) / 50p 1,125 (1,080) / 24p... -
Page 8: Service Hints
Service Hints How to remove the backcover Lay the main unit face down. (see Fig.5) Fig.5 How to remove the Pedestal assembly Remove the 4 fixing screws and the pedestal assembly. (see Fig.6) SCREWS Fig.6 Remove the 17 fixing screws. (see Fig.7) SCREWS SCREWS Fig.7... -
Page 9: Chassis Board Layout
Chassis Board Layout POWER UNIT A-BOARD V-BOARD Board Name Function Tuner, AVSW, sLD, HDMI, AV Switch, EEPROM, Flash Memory, A-Board Digital Audio Out, AV Terminal, SD Slot, Speaker out Power Unit Power Supply, Main Input V-Board Remote Receiver, Cats, R/G LED Location of Lead Wiring To find the Part Number of required wire in Replacement Parts List click on the wire name in red box. -
Page 10: Technical Description
3 seconds. TV will be forced to the factory shipment setting after this SELF CHECK. Model and Keys: Keys Model No. One-to_one CI PLUS DTCP-IP (for USB Rec.) TX-L32U2B None None None TX-L37U2B None None None... -
Page 11: Setting Inspection
Setting Inspection Voltage Confirmation Confirm the following voltages: TP No. Voltage A board SUB1.8V TP5601 1.76V – 1.87V SUB1.2V TP5600 1.18V – 1.29V SUB3.3V TP5602 3.19V – 3.39V SUB5V TP5200 4.9V – 5.1V SUB9V TP5220 8.82V – 9.27V STB5V TP5400 4.9V –... -
Page 12: Self-Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check, switch off the TV set at the power button. Panasonic 2010LCD 32FHD TX-L32U2B Self Check Complete C848 O.K. -
Page 13: Power Led Blinking Timing Chart
Power LED blinking timing chart Subject Information of LED Flashing timing chart. Contents When 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 number of blinking of the Power LED on the front panel of the unit. Blinking Blinking timing Contents... -
Page 14: Service Mode Function
Service Mode Function MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu How to enter SERVICE While pressing (-/v) button on TV unit, press on the remote control for 3 times within 2 seconds. -
Page 15: Service
SERVICE SERVICE Peaks SOFT 1.012 OPTION 1 Key Command ADJUST Peaks EEP 01.01.0035 OPTION 2 WB-ADJ LSI PACKAGE 0.025 OPTION 3 OPTION LSI DATA 0.01 OPTION 4 • Press the 3/4 button to change the adjustment values or function. STBY SOFT 1.00.00 Model ID SRV-TOOL... -
Page 16: Service Tool Mode
Service Tool Mode How to access Select [SRV-TOOL] in Service Mode. Press [OK] button on the remote control. SRV-TOOL Display of TD2Microcode version TD2Microcode:005a0910 Flash ROOM: AD – F1 Display of Flash ROM maker code POWER ON TIME/COUNT PTCT:00.00.00.00.00 Time 00051:30 On/Off 0000042 Display of SOS History Press [MUTE] button (3sec) -
Page 17: Hotel Mode
Hotel Mode 1. Purpose Restrict a function for hotels. 2. Access command to the Hotel mode setup menu. In order to display the Hotel mode setup menu, please enter the following command (within 2 second). [TV] : Vol.[Down] + [REMOTE] : AV (3 times) Then, the Hotel mode setup menu is displayed. -
Page 18: Data Copy By Sd Card
Data Copy by SD Card Purpose a) Board replacement (Copy the data when exchanging A-board): When axchanging A-board, the data in original A-board can be copied to SD card and then copy to new A-board. Following data can be copied. (Before exchanging) User setting data Copy to SD card... -
Page 19: Data Copy From Tv Set To Sd Card
Data Copy from TV set to SD Card Turn on the TV set. Insert SD card with a startup file (pwd.file) to SD slot. On-screen Display will be appeared according to the startup file automatically. Input a following password for (a) or (b) by using remote control. (a) For Board replacement: 2770 (b) For Hotel: 4850 Data will be copied from TV set to SD card. -
Page 20: Data Copy From Tv Set To Tv Set
Data Copy from SD Card to TV set Turn on the TV set. Insert Sd card with Data to SD slot. On-screen Display will be appeared according to the Data folder automatically. Input a following password for (a) or (b) by using remote control. (a) For Board replacement: 2771 (b) For Hotel: 4851 Data will be copied from SD card to TV set. -
Page 21: Option Description
Option Bytes Description OPTION1 ATP Search Speed Slow (1) / Fast (0) TXT Ch Refresh On (1) / Off (0) ID-1 On (1) / Off (0) Macrovision Auto-Judge On (1) / Off (0) Surround enable low bit (*1) On (1) / Off (0) Surround enable low bit (*1) On (1) / Off (0) Pre Emphasis... -
Page 22: Adjustment Method
Adjustment Method Sub-Contrast/White Balance Adjustment Instrument Name Connect to Remarks Remote controller Correlation can be also taken by LCD WB meter (Minolta CS-1000A equivalent) CA-210 or equivalent Comunication jig Computer for external control Procedure Remarks Let the panel standfor more than 3 hours at more than 20 °C. -
Page 23: Wiring Diagram
Wiring Diagram LCD PANEL... -
Page 24: Block Diagrams
SP_L SP_R Block Diagram TU2901A JK8850 CN0100 TUNER SD CARD SLOT SERVICE A-BOARD V-BOARD 20 19 IIC2 (EXCHANGE UNIT) SN2500 SUB5V SUB5V AV1 _ROUT R1out STB3.3V STB3.3V AV1_R CVBSin4 D2500 R3in G_LED G_LED Q2501 AV1_LOUT L1out 41,42 36,37 30,31 25,26 R_LED R_LED Q2500... -
Page 25: Parts Location
Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. - Page 26 NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.
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Page 27: Replacement Parts List
IC5603 C0DBFYY00049 REGULATOR N2QAYB000487 REMOTE CONTROL IC5604 C0DBGYY00578 REGULATOR TBM0E1709 CI SLOT COVER SHEET IC8001 MN2WS0125FH IC SLD TBMA352 PANASONIC BADGE IC8300 C1AB00003188 DVB-T/C DEMODULATOR TKP0E16001 CONNECTOR COVER IC8302 C0DBFYY00041 REGULATOR TKP0E39001 AC CORD BRACKET IC8400 C1AB00003193 CI TS ASIC... - Page 28 Cct Ref Parts Number Description Cct Ref Parts Number Description D4721 B0JCCE000008 DIODE Q4809 B1ABNF000006 TRANSISTOR D4737 B0JCCE000008 DIODE Q4811 B1ADNF000006 TRANSISTOR D4800 B0JCME000076 DIODE Q4813 B1ABCF000231 TRANSISTOR D4801 B0BC019A0007 ZENER DIODE Q5000 B1ADCE000022 TRANSISTOR D4802 B0BC03200003 ZENER DIODE Q5053 DSC2001S0L TRANSISTOR D4803...
- Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description 10K Ω L5608 J0JHC0000045 COIL BLM18PG121SN1D R0905 ERJ2GEJ103X .063W 10K Ω L8000 J0JHC0000045 COIL BLM18PG121SN1D R0910 ERJ2GEJ103X .063W 10K Ω L8001 J0JHC0000116 COIL R0911 ERJ2GEJ103X .063W 10K Ω L8002 J0JKC0000021 COIL R0912 ERJ2GEJ103X...
- Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description 0 Ω 75 Ω R2107 D0GAR00Z0001 .063W R3130 ERJ6ENF75R0 .125W 1K Ω 75 Ω R2135 ERJ2GEJ102X .063W R3137 ERJ6ENF75R0 .125W 220 Ω 75 Ω R2139 ERJ2GEJ221X .063W R3138 ERJ8ENF75R0 0.25W 220 Ω...
- Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description 75 Ω 0 Ω R3221 ERJ8ENF75R0 0.25W R4814 EXB28VR000X 47K Ω 0 Ω R3360 D0GA473JA015 .063W R4815 EXB28VR000X 47K Ω 0 Ω R3361 D0GA473JA015 .063W R4816 EXB28VR000X 10K Ω 0 Ω R3990 ERJ2GEJ103X .063W...
- Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description 1K Ω 10 Ω R4993 ERJ2GEJ102X .063W R5627 D0GB100JA041 0.1W 0 Ω 0 Ω R5000 D0GAR00Z0001 .063W R5628 D0GAR00Z0001 .063W 0 Ω 0 Ω R5001 D0GAR00Z0001 .063W R5631 D0GAR00Z0001 .063W 68K Ω...
- Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description 100 Ω 68 Ω R8419 EXB2HV101JV .063W R8498 D0GA680JA015 .063W 100 Ω 68 Ω R8420 EXB2HV101JV .063W R8499 D0GA680JA015 .063W 68 Ω 10K Ω R8422 EXB2HV680JV .063W R8500 EXB2HV103JV .063W 68 Ω...
- Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description 10K Ω R8890 ERJ2GEJ103X .063W C2505 F1H1C104A143 S.M.CAP 100nF 68 Ω R8900 D0GA680JA015 .063W C2506 F2G0J220A019 ELECT 6.3V 22µF 68 Ω R8918 EXB2HV680JV .063W C2750 F1G1C104A116 S.M.CAP 100nF 68 Ω R8919 EXB2HV680JV .063W...
- Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description C3142 F1J1A106A087 S.M.CAP 10µF C4830 F1K1E106A136 S.M.CAP 10µF C3143 F1J1A106A087 S.M.CAP 10µF C4831 F1K1E106A136 S.M.CAP 10µF C3144 F1J1A106A087 S.M.CAP 10µF C4832 F1G1A105A047 S.M.CAP 1000nF C3145 F1J1A106A087 S.M.CAP 10µF C4833 F1G1C104A116 S.M.CAP 100nF C3146...
- Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C5627 F1G1A393A053 S.M.CAP 39nF C8064 F1J0G2260001 S.M.CAP 22µF C5628 F1K1E106A136 S.M.CAP 10µF C8067 F1G1C104A116 S.M.CAP 100nF C5632 F1J1A475A087 S.M.CAP 4.7µF C8068 F1G1C104A116 S.M.CAP 100nF C5634 F1H1C104A143 S.M.CAP 100nF C8069 F1G1C104A116 S.M.CAP 100nF C5635...
- Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description C8308 F1G1C104A116 S.M.CAP 100nF TTU0E0681 BACK COVER ASSY C8309 F1G1C104A116 S.M.CAP 100nF TKZ0EA5030 BOTTOM MASK BRACKET C8310 F1G1C104A116 S.M.CAP 100nF TTY0E0604 CABINET ASSY C8311 F1J1A106A087 S.M.CAP 10µF TKZ0EC5007 LCD BTM MTG BRACKET C8314 F1G1C104A116 S.M.CAP...
- Page 38 Cct Ref Parts Number Description Cct Ref Parts Number Description RESISTORS 0 Ω JS1012 D0GAR00Z0001 .063W 22 Ω R0950 ERJ2GEJ220X .063W 22 Ω R0951 ERJ2GEJ220X .063W 750 Ω R9970 D0GB751JA041 0.1W 750 Ω R9971 D0GB751JA041 0.1W 10K Ω R9973 ERJ2GEJ103X .063W 10K Ω...
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Page 39: Schematic Diagrams
Schematic Diagrams IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. Unit of resistance is OHM (Ω) (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise. -
Page 62: Conductor Views
Conductor Views A-BOARD TNP8EA106 - TOP IC’S TRAN’S IC1101 4B Q2101 IC2301 1B Q4512 IC4800 3E Q4513 IC4801 1E Q5000 IC4802 1D Q5600 IC5000 6C Q5601 IC5200 1A Q5605 IC5220 1A Q8400 IC5416 1A Q8401 IC8001 3D IC8402 5C DIODE’S IC8921 4D D3300... - Page 63 A-BOARD TNP8EA106 - BOTTOM Q3100 IC’S IC2950 Q3101 IC2952 Q3102 IC3000 Q3103 IC5600 Q3104 IC5601 Q3105 IC5603 Q4700 IC5604 Q4702 IC8300 Q4802 IC8302 Q4803 IC8400 Q4804 IC8401 Q4805 IC8950 Q4807 IC9980 6D* Q4809 Q4811 Q4813 TRAN’S Q2252 Q5053 Q2253 Q5054 Q2254 Q5055 Q2301...
- Page 64 V-BOARD TNP8EV102 - TOP IC’S RM2500 1A TRAN’S Q2500 Q2501 Q2504 DIODE’S D2500...