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B. Power error
Off when on, off while viewing, power auto on/off
※
Caution
Check and fix exterior
of Power B/D Part
Established
date
Revised date
7/13
LCD TV
Error
symptom
* Please refer to the all cases which can be displayed on power off mode.
Click the below Hyper_link
Error?
N
Y
Check Power Off
Mode
Fix A/C cord & Outlet
and check each 3
phase out
Check A/C cord
Check for all 3- phase
power out
Check outlet
Replace Main B/D
CPU
Abnormal
(If Power Off mode is
not displayed)
Check Power B/D
voltage
Y
N
Replace Main B/D
Normal
voltage?
Replace Power B/D
Replace Power B/D
N
Y
Normal?
End
☞
A22
☞
A19
Abnormal
1
2012. 12 .21
Standard Repair Process
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Only for training and service purposes
LGE Internal Use Only
Summary of Contents for 42LN5700
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