LG 65LA970T-DA (CHASSIS:LT34E) Service Manual ▷ View online
Standard Repair Process Detail Technical Manual
TUNER checking part
A. Video error_Video error, video lag/stop
A5
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
TUNER checking part
<ALL MODELS>
A5
date
Content
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.
g
g
p
pp y,
y
p
A5
Standard Repair Process Detail Technical Manual
LCD TV
ti
di
(1)
A. Video error _Vertical/Horizontal bar,
residual image, light spot
A6
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
LCD TV connection diagram (1)
A6
date
Content
<ALL MODELS>
As the part connecting to the external input, check
the screen condition by signal
the screen condition by signal
A6
Standard Repair Process Detail Technical Manual
Ch k Li k C bl (LVDS)
ti
diti
A. Video error_Color error
A7
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
Check Link Cable (LVDS) reconnection condition
A7
date
Content
<ALL MODELS>
Check the contact condition of the Link Cable, especially dust or mis insertion.
A7
Standard Repair Process Detail Technical Manual
Adjustment Test pattern ADJ Key
A. Video error_Color error
A8
Established
date
Revised
Error
symptom
Content
LCD TV
2013.01.31
Adjustment Test pattern - ADJ Key
A8
date
Content
You can view 6 types of patterns using the ADJ Key
Checking item : 1. Defective pixel
2. Residual image
3. MODULE error (ADD-BAR,SCAN BAR..)
4.Video error (Classification of MODULE or Main-B/D!)
A8
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