Power Error - LG OLED55BX L Series Service Manual

Standard Repair Process
Error
symptom
☞A8
Check Power
Logo LED LED On?
. Stand-By: Red or Turn On
. Operating: Turn Off
Check Power cord
was inserted properly
Normal?
Close
B. Power error
Y
N
N
Y
Check ST-BY (7.8V)
☞A9
No power
DC Power on
by pressing Power Key
operation?
On Remote control
☞A9
Measure voltage of each
output of Power B/D
Y
Normal
voltage?
Replace Power B/D
N
Replace Power
B/D
6
Established
date
Revised date
☞A9
N
Normal Check Power
On '"High"
Y
Y
Normal
Replace Main B/D
voltage?
N
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6/16
Y
Replace
OK?
Power B/D
Replace Main B/D