Trouble Shooting Guide - LG HF80JA Service Manual

1. Poor Connection
- Main, LED Board Ass'y
No. Circuit Number
1 P702
2 P104
3 P652
4 P651
5 P601
6 P304
7 P801
8 P105

TROUBLE SHOOTING GUIDE

3 4
2
8
Board connection point
Pin count Connections
80 DMD Board
40 Jack Board
3 P/W Index
4 P/W Motor
4 Speaker
10 Local Key
4 FAN
8 WIFI, Bluetooth
5
1
7
Symptoms of a bad connection
No image (none functional of DPP ASIC)
Cannot Working Remote Controller, Sound out(AV, SPDIF),
Wired Lan and DTV Tuner
No Image (DMD Lock by Detecting Phospher wheel trouble)
No Image (DMD Lock by Detecting Phospher wheel trouble)
No sound (Internal Speakers)
Local Key doesn't work or may be worked abnormally
Fan doesn't work, and set turns off automatically
Wi-Fi, Bluetooth Function is not working
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