Read LG 47LA6900 (CHASSIS:LJ33B) Service Manual online
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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
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
Established
date
Revised date
6/13
LCD TV
Error
symptom
. Stand-By: Red or Logo Light ON
. Operating : off
. Operating : off
※
Close
2012. 12 .21
Standard Repair Process
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