LG 43LH54 Series Service Manual page 40

Contents of Standard Repair Process Detail Technical Manual
* First of all, Check whether there is SVC Bulletin in GSCS System for these model.
No. Error symptom
21
22
B. Power error_No power
23
24
B. Power error_Off when on, off while
26
viewing
28 C. Audio error_No audio/Normal video
D. Function error_ No response in remote
29
control, key error
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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 voltage measuring method
POWER OFF MODE checking method
Checking method in Setting when there is no
audio
remote control operation checking method
Page Remarks
A11
A12
A13
A4
A14
A15
A16
LGE Internal Use Only