36 / 90

Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes LGE Internal Use Only
Contents of LCD TV Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
21
B. Power error_No power
Check front display LED A17
22 Check power input Voltage & ST-BY 3.5V A18
23 Checking method when power is ON A19
24 POWER BOARD voltage measuring method A5
25
26 B. Power error_Off when on, off while
viewing POWER OFF MODE checking method A22
27 B. Power error_Off when on, off while
viewing POWER BOARD PIN voltage checking method A19
28
C. Audio error_No audio/Normal video
Checking method in menu when there is no
audio A24
29 Voltage and speaker checking method when
there is no audio A25
30 C. Audio error_Wrecked

audio/discontinuation

Voltage and speaker checking method in
case of audio error A25
31 D. Function error_ No response in
remote controller, key error Remote controller operation checking method A27
32 D. VCOM Adjustment Sequence of the Vcom adjustment A28

Continued from previous page