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Troubleshooting Guide; Check Of The Iic Bus Lines; Self-Check Indication Only; Self-Check Indication And Forced To Factory Shipment Setting - Panasonic TX-PF42G30 Service Manual

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7 Troubleshooting Guide

Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
7.1.

Check of the IIC bus lines

7.1.1.
How to access
7.1.1.1.

Self-check indication only:

Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
7.1.1.2.

Self-check indication and forced to factory shipment setting:

Caution:
New key will be generated and previous TV programmes recorded in USB HDD will not be viewed. (See Chap.5)
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote con-
trol for more than 3 seconds.
7.1.2.
Screen display
7.1.3.
Check Point
Confirm the following parts if NG was displayed.
7.1.4.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [ Power ] button on the main unit.
DISPLAY
Check Ref. No.
TUN
TU4801
STBY
IC8000
MEM1
IC8902
MEM2
IC8901
AVSW
IC3001
TEMP
IC2001
LAN
IC8601
ID
ID2
LP1
IC9300
HDMI-SW
IC4700
Description
TUNER
A-BOARD
PEAKS-LDA3 (STM)
A-BOARD
PEAKS EEPROM
A-BOARD
STM EEPROM
A-BOARD
AUDIO/VIDEO SW
A-BOARD
TEMP SENSOR
A-BOARD
ETHERPHY
A-BOARD
A-BOARD
A-BOARD
LP1
A-BOARD
HDMI SW
A-BOARD
17
Check P.C.B.

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