LG 79UF9500 Service Manual page 70

No. Error symptom (High category)
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2
3
A. Video error
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5
6
B. Power error
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8
C. Audio error
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10
11
D. Function error
12
13
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15 E. Noise
16 F. Exterior error
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Only for training and service purposes
Contents of Standard Repair Process
No video/Normal audio
No video/No audio
Picture broken/ Freezing
Color error
Vertical/Horizontal bar, residual image,
light spot, external device color error
No power
Off when on, off while viewing, power
auto on/off
No audio/Normal video
Wrecked audio/discontinuation/noise
Remote control & Local switch checking
MR15 operating checking
Wifi operating checking
Camera operating checking
External device recognition error
Circuit noise, mechanical noise
Exterior defect
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
Error symptom (Mid category) Page Remarks
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
LGE Internal Use Only