Trouble Shooting Guide - LG PF50KA Service Manual

1. Poor Connection
- Main, LED Board Ass'y
Board connection point
Circuit Number
No.
1A,1B P1030, P1031
2 P901
3A,3B P400, P402
4 P201
5 P601
6 P500
7 P200

TROUBLE SHOOTING GUIDE

Pin count Connections
6/12 LED(R,G,B)
80 DMD Board
4 FAN
4 Speaker
10 Keypad
6 Battery
12 WIFI, Bluetooth
- 11 -
7
2
5
Symptoms of a bad connection
Display turns off immediately after power on. or no image
(none functional of LED)
No image (none functional of DPP ASIC)
Fan doesn't work, and set turns off automatically
No sound from the left/right speaker.
Joystick Keys is not functional.
Battery Function is not working
Wi-Fi, Bluetooth Function is not working
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Only for training and service purposes.
1B 1A
3A
3B
4
6