Troubleshooting Guide; Check Of The Iic Bus Lines - Panasonic TC-55AS650U Service Manual

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:
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. Exit
Disconnect the AC cord from wall outlet or press the [POWER] button on the main unit for 3 seconds to turn off and then turn on
automatically.
7.1.3. Screen display
7.1.4. Check Point
Confirm the following parts if NG was displayed.
DISPLAY Check Ref. No.
H14TUN IC6750/JK6751
H90STBY IC8000
H92MEM1 IC8901
H91MEM2 IC8903
H17LAN IC8903
H96ID IC8903
H97ID2 IC8903
H45BT IC8601, IC8000
H42WiFi IC8601, IC8000
Description
TUNER A-Board
IC Peaks-LD6 A-Board
EEPROM STM A-Board
eMMc Memory A-Board
MAC A-Board
DTCP-IP A-Board
Dimora, HDCP2, A-Board
Netflix,Widevine
USB HUB, IC Peaks-LD6, A-Board
Blueetooth BT-Dongle
USB HUB, IC Peaks-LD6, A-Board
WiFi WiFi Dongle
15
Check Point