LG 42LA86 Series Service Manual page 89

Chassis : ld34d
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Contents of LCD TV Standard Repair Process
No.
Error symptom (High category)
1
2
3
A. Video error
4
5
6
B. Power error
7
8
C. Audio error
9
10
D. Function error
11
12
E. Noise
13
F. Exterior error
14
G. Network error
First of all, Check whether there is SVC Bulletin in GCSC System for these model.
Error symptom (Mid category)
No video/Normal audio
No video/No audio
Video error, video lag/stop, fail tunning
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
No response in remote controller, key error,
recording error, memory error
External device recognition error
Circuit noise, mechanical noise
Exterior defect
Connection defect / Network speed low
Page
Remarks
1
2
3, 4
5
6
7
8
9
10
11
12
13
14
15

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