LG 47GA6400-UD / 47GA6450-UD (CHASSIS:LA37G) Service Manual ▷ View online
Menu
Æ Settings
Æ
Channel settings
Æ Manual Tuning
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
<ALL MODELS>
A6
Established
date
Revised
date
Error
symptom
Content
LCD TV
A6
2011. 12 .14
Standard Repair Process Detail Technical Manual
LCD-TV Version checking method
A. Video error_Video error, video lag/stop
1. Checking method for remote controller for adjustment
Press the IN-START with the remote
controller for adjustment
controller for adjustment
Version
<ALL MODELS>
A7
Established
date
Revised
date
Error
symptom
Content
LCD TV
A7
2011. 12 .14
Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Standard Repair Process Detail Technical Manual
TUNER checking part
A. Video error_Video error, video lag/stop
<ALL MODELS>
A8
Established
date
Revised
date
Error
symptom
Content
LCD TV
A8
2011. 12 .14
Standard Repair Process Detail Technical Manual
LCD TV connection diagram (1)
A. Video error _Vertical/Horizontal bar,
residual image, light spot
As the part connecting to the external input, check the
screen condition by signal
screen condition by signal
A9
Established
date
Revised
date
Error
symptom
Content
LCD TV
A9
<ALL MODELS>
2011. 12 .14
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