file no service manual led tv - Panasonic

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CONTENTS1. Safety precautions .................................................................................................32. Alignment instructions and method of software upgrading.....................................53. Working principle analysis of the unit ................................................................... 124. Specifications.......................................................................................................135. Block diagram ......................................................................................................146. IC block diagram..................................................................................................177. Wiring diagram ...................................................................................................248. Troubleshooting guide..........................................................................................299. Schematic diagram ..............................................................................................3310. APPENDIX-A: Assembly listAPPENDIX-B: Exploded View11. Disassembly and Assembly Instructions2
Attention: This service manual is only for service personnel to take reference with. Before servicingplease read the following points carefully.Safety precautions1. InstructionsBe sure to switch off the power supply before replacing or welding any components orinserting/plugging in connection wire Anti static measures to be taken (throughout the entire productionprocess!):a) Do not touch here and there by hand at will;b) Be sure to use anti static electric iron;c) It’s a must for the welder to wear anti static gloves.Please refer to the detailed list before replacing components that have special safety requirements.Do not change the specs and type at will.2. Points for attention in servicing of LED2.1 Screens are different from one model to another and therefore not interchangeable. Be sure toUse the screen of the original model for replacement.2.2 The operation voltage of LED screen is high voltage. Be sure to take proper measures inprotecting yourself and the machine when testing the system in the course of normal operation orright after the power is switched off. Please do not touch the circuit or the metal part of the moduleThat is in operation mode. Relevant operation is possible only one minute after the power is switchedoff.2.3 Do not use any adapter that is not identical with the TV set. Otherwise it will cause fire or damageto the set.2.4 Never operate the set or do any installation work in bad environment such as wet bathroom,laundry, kitchen, or nearby fire source, heating equipment and devices or exposure to sunlight etc.Otherwise bad effect will result.2.5 If any foreign substance such as water, liquid, metal slices or other matters happens to fall into themodule, be sure to cut the power off immediately and do not move anything on the module lest it shouldcause fire or electric shock due to contact with the high voltage or short circuit.2.6 Should there be smoke, abnormal smell or sound from the module, please shut the power off atonce. Likewise, if the screen is not working after the power is on or in the course of operation, thepower must be cut off immediately and no more operation is allowed under the same condition.2.7 Do not pull out or plug in the connection wire when the module is in operation or just after thepower is off because in this case relatively high voltage still remains in the capacitor of the drivingcircuit. Please wait at least one minute before the pulling out or plugging in the connection wire.2.8 When operating or installing LED please don’t subject the LED components to bending, twisting orextrusion, collision lest mishap should result.2.9 As most of the circuitry in LED TV set is composed of CMOS integrated circuits, it’s necessary topay attention to anti statics. Before servicing LED TV make sure to take anti static measure andensure full grounding for all the parts that have to be grounded.2.10 There are lots of connection wires between parts behind the LED screen. When servicing ormoving the set please take care not to touch or scratch them. Once they are damaged the screenwould be unable to work and no way to get it repaired.If the connection wires, connections or components fixed by the thermo tropic glue need to disengagewhen service, please soak the thermo tropic glue into the alcohol and then pull them out in case ofdamage.3
Page 1: FILE NOSERVICE MANUALLED TVTC-L39B6
Page 5 and 6: 2. Alignment instructions(1) Test e
Page 7 and 8: (4) Adjustment instructionAt any in
Page 9 and 10: 7)ADC CalibrationADC Calibration fu
Page 11 and 12: 6-5 other functions checka) Check t
Page 13 and 14: 4. Specifications13
Page 15 and 16: Power Board: FSP15
Page 17 and 18: 6. IC block diagram1. MT5385GENERAL
Page 19 and 20: Video Plane Supports video freeze a
Page 21 and 22: Stereo demodulation, SAP demodulati
Page 23 and 24: 2. TI TAS570720-W STEREO DIGITAL AU
Page 25 and 26: 7-2 Wiring ConnectionLG panelMain b
Page 27 and 28: 44 GND Black 25 GND45 GND Black 26
Page 29 and 30: 8. Trouble shooting1. Fault clearan
Page 31 and 32: 2-2 Has audio but no video out2-3 H
Page 33 and 34: 9.SCHEMATIC DIAGRAM--ELECTRON
Page 35 and 36: 54321Buck Converter 4AD+5VSB11 POWE
Page 37 and 38: 54321DVDD3V3D33POCE0#PDD7POCE0#PDD7
Page 39 and 40: 54321Component inputA/V inputOPT SP
Page 41 and 42: 54321DCBDDR3#1DDRVR145C1761K/1%/040
Page 43 and 44: 54321D1213 GND14 GND15 GNDGNDTDST-H
Page 45 and 46: SCHEMATIC DIAGRAM
Page 47 and 48: 5544332211DDCCBBAA12V1L1-L2+L1+OVP1
Page 49 and 50: 12345678ABVLED12VccBLONDIM10KR94310
Page 51 and 52: 23 ACETIC ACID TYPE LCSE55T020I LCS
Page 53 and 54:
24 SCREW+LOCK WASHER(8) MAA8002040I
Page 55 and 56:
24 SCREW+LOCK WASHER(8) MAA8002040I
Page 57 and 58:
36Type A3433Type B31392840413844323
Page 59 and 60:
11.3. P-Board1. Remove the 4 screws
Page 61 and 62:
11.6. Metal parts1. Remove the 4 sc
Page 63:
PD39T SERVICE MANUAL CHANGE LISTDAT
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file no service manual led tv - Panasonic

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