Read LG 55LW5500-ZE / 55LW550T-ZE / 55LW550W-ZE / 55LW551C-ZE / 55LW5590-ZE (CHASSIS:LD12C) Service Manual online
B. Power error
No power
Power
LED On?
Y
N
DC Power on
by pressing Power Key
On Remote control
by pressing Power Key
On Remote control
Y
N
Normal
operation?
Check Power
On ‘”High”
On ‘”High”
Check Power cord
was inserted properly
was inserted properly
Check
Power LED
Power LED
Replace
Power B/D
Power B/D
Measure voltage of each
output of Power B/D
output of Power B/D
N
Y
Normal
voltage?
Replace Main B/D
N
Y
OK?
Replace Main B/D
N
Y
Normal?
Check ST-BY 3.5V
Replace Power B/D
N
Y
Normal
voltage?
Replace Power
B/D
B/D
Y
☞A17
☞A18
☞A19
☞A4
Standard Repair Process
Established
date
Revised date
7/14
LCD TV
Error
symptom
7
. Stand-By: Red
. Operating: white
. Operating: white
※
Close
2010. 12 .14
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