LG 40LF6300-UA Service Manual page 83

Standard Repair Process
Error symptom
☞A17
Check Power LED
Power LED On?
. Stand-By: On
N
. Operating: Off
Check Power cord
was inserted properly
Normal?
Y
Close
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B. Power error
No power
DC Power on
Y
by pressing Power Key
On Remote control
N
※
Check ST-BY 9.7V
☞A18
Revised date
Normal
operation?
Y
Measure voltage of each output of Power B/D
Y
Normal
voltage?
Normal
Y
voltage?
N
Replace Power B/D
N
Replace Power
B/D
Established
date
N
Check Power
OK?
On '"High"
Replace Main B/D
☞A4
Y
Replace Main B/D
6/13
Replace
Y
Power
B/D
LGE Internal Use Only