LG 28LJ400B Service Manual page 25
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Also See for 28LJ400B:
- Easy setup manual (45 pages) ,
- Owner's manual (43 pages) ,
- Easy setup manual (27 pages)
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Standard Repair Process
Error
LED TV
symptom
A2-3 Display Trouble
Black screen
4 Display Trouble black screen
Repair the circuit
Established
date
Revised date
Black screen
Check if the control circuit
between PWM_DIM and
PWM/ADJ is normal ?
N
Y
Check if the power supply
for inverter is normal?
Check the inverter board
2016. 12.31
4/10
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Only training and service purposes.
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