LG 70LA8600-SA (CHASSIS:LJ34D) Service Manual ▷ View online
Standard Repair Process Detail Technical Manual
Inverter B+ 24V measuring method
A. Video error_No video/Normal audio
A2
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 11 .17
g
date
<LPB MODELS>
Measure LED+ applying to LED Back Light from Power Board.
Output LED+ from Power Board -> supply to LED B/L.
Check Pin contacting statement and connection statement.
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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
2012. 11 .17
<ALL MODELS>
date
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 8.
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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
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established
date
Revised
date
Error
symptom
Content
LCD TV
2012. 11 .17
g
g
date
Check the DC 24V 12V 3 5V
Check the DC 24V, 12V, 3.5V.
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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
2012. 01 .14
<ALL MODELS>
date
MENU => CHANNEL => Manual Tuning
=> Check Signal Strength & Signal Quality
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