Panasonic tx-p42u20b Service Manual

Also see for Viera TX-P42U20E: Operating instructions Operating instructions

Panasonic tx-p42u20b Service Manual Manual pdf 18 page image

7 Troubleshooting GuideUse the self-check function to test the unit.1. Checking the IIC bus lines2. Power LED Blinking timing7.1. Check of the IIC bus lines7.1.1. How to access7.1.1.1. Self-check indication only:Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote controlfor more than 3 seconds.7.1.1.2. Self-check indication and forced to factory shipment setting:Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.7.1.2. Screen display42FHD Panasonic 2010PDPSETSELF CHECK COMPLETESUM * * * *Model ID *** * * * * * * ** * * * * * * *EDIDPEAKS-SOFT * _ * * *PEAKS-EEP * * * * * * * *LSI-PACKAGE * _ * * *LSI-RELEASE * **STBY-SOFT * * * * *STBY-EEP * * * * * * *STBY-ROMCORR * * * * *PDP-MCU * * * * * *PDP-EEP * * _ **PDP-DCC **_ **PDP-PDPOM **_ * *TUN OKSTBY OKMEM1 OKMEM2 OKADAM OKAVSW OKPDROM OKOFDM OKTEMP OKVIF OKID OK* : Displayed for E model only.7.1.3. Check PointConfirm the following parts if NG was displayed.Display Ref. No. Description P.C.B.TUN TU2901A TUNER A-BoardSTBY IC8001 MPU (PEAKS-sLD) A-BoardMEM1 IC1100 EEPROM (MPU) A-BoardMEM2 IC8950 EEPROM (PEAKS-sLD) A-BoardADAM IC8001 А-chip (PEAKS-sLD) A-BoardAVSW IC3000 Audio/Video SW A-BoardPDROM IC9300 PD4 A-BoardOFDM IC8300 Digital demodulator A-BoardTEMP IC1000 Temp Sensor A-BoardVIF TU2901A TUNER A-Board7.1.4. ExitDisconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.18