B. Power error
No power
DC Power on
by pressing Power Key
On Remote control
Y
N
Normal
operation?
Check Power
On ‘”High”
Replace
Power B/D
Measure voltage of each
output of Power B/D
N
Y
Normal
voltage?
Replace Main B/D
Y
OK?
Replace Main B/D
Replace Power B/D
☞
A12
☞
A12
Standard Repair Process
Established
date
Revised date
5/11
5
Error symptom
Copyright
ⓒ
2020 LG Electronics Inc. All rights reserved.
Only training and service purposes.
Summary of Contents for 75UH5F
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