LG 22LG3100 (CHASSIS:LD91M) Service Manual ▷ View online
Standard Repair Process Detail Technical Manual
Check Inverter cable connection
A. Video error_No video/Normal audio
A2
Established
date
Revised
date
Error
symptom
Content
LCD TV
A2
2009. 7 .30
Check the inverter cable connection
19inch
22inch
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 6.
3. After recording the R, G, B (GAIN, Cut) value of Color Temp
(Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD.
Standard Repair Process Detail Technical Manual
Check White Balance value
A. Video error_No video/Normal audio
A3
Established
date
Revised
date
Error
symptom
Content
LCD TV
A3
2009. 7 .30
Standard Repair Process Detail Technical Manual
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established
date
Revised
date
Error
symptom
Content
LCD TV
A4
2009. 7 .30
Measure DC 5V,15V applying to inverter PCB from
Power Board
Power Board
Check MENU -
Æ SETUP -Æ Diagnostics -Æ Signal Strength / Quality
When the signal is strong, use the
attenuator (-10dB, -15dB, -20dB etc.)
attenuator (-10dB, -15dB, -20dB etc.)
Standard Repair Process Detail Technical Manual
TUNER input signal strength checking method
A. Video error_Video error, video lag/stop
A5
Established
date
Revised
date
Error
symptom
Content
LCD TV
A5
2009. 7 .30
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