LG 70LA8610-TA / 70LA860Y-TA (CHASSIS:LB34D) Service Manual ▷ View online
Contents of LCD TV Standard Repair Process Detail Technical Manual
No.
Error symptom
Content
Page
Remarks
16
B. Power error_ No power
Check front display LED
A17
17
Check power input Voltage & ST-BY 3.5V
A18
18
B. Power error_Off when on, off while
viewing
viewing
POWER OFF MODE checking method
A19
19
C. Audio error_ No audio/Normal video
Checking method in menu when there is no
audio
audio
A20
20
Voltage and speaker checking method when
there is no audio
there is no audio
A21
21
D. Function error
Remote controller operation checking method
A22
22
Motion Remote operation checking method
A23
23
Wifi operation checking method
A24
24
Camera operation checking method
A25
25
E. Etc
Tool option changing method
A26
Continued from previous page
Established
date
Standard Repair Process Detail Technical Manual
Revised
date
A1
Error
symptom
Content
Check LCD back light with naked eye
A. Video
error_No
video/Normal audio
After turning on the power and disassembling the case, check with the naked eye,
whether you can see light from 2 locations.
LCD TV
A1
2013.03.05
<XXLA860X-TA>
Established
date
Standard Repair Process Detail Technical Manual
Revised
date
A2
Error
symptom
Content
Check White Balance value
A. Video
error_No
video/Normal audio
LCD TV
A2
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.
<ALL MODELS>
Entry method
1. Press the ADJ button on the remote controller for adjustment.
2. Enter into White Balance of item 9.
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.
2013.03.05
Settings Set up
Manual Tuning
select channel
When the signal is strong, use the
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>
A3
Established
date
Revised
date
Error
symptom
Content
LCD TV
A3
2013.03.05
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