Trouble Shooting - LG 47LT640H Service Manual

1. Trouble Shooting

Contents of LCD TV Standard Repair Process
No. Error symptom (High category)
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A. Video error
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B. Power error
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C. Audio error
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D. Function error
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12 E. Noise
13 F. Exterior error
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Only for training and service purposes
Error symptom (Mid category)
No video/Normal audio
No video/No audio
Video error, video lag/stop
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
Page Remarks
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LGE Internal Use Only