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Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
21
22
23
B. Power error_No power
24
25
B. Power error_Off when on, off while
26
viewing
28
C. Audio error_No audio/Normal video
29
C. Audio error_Wrecked
30
audio/discontinuation
D. Function error_ No response in
31
remote controller, key error
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2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
Content
Check front display LED
Check power input Voltage & ST-BY 3.5V
Checking method when power is ON
POWER BOARD voltage measuring method
POWER OFF MODE checking method
Checking method in menu when there is no
audio
Voltage and speaker checking method when
there is no audio
Voltage and speaker checking method in
case of audio error
Remote controller operation checking method
Continued from previous page
Page
Remarks
A11
A12
A13
A4
A14
A15
A16
A16
A17
LGE Internal Use Only
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