LG 42LB650T Service Manual

B. Power error
Off when on, off while viewing, power auto on/off
Established
date
Revised date
7/13
LCD TV
Error
symptom
Standard Repair Process
2013. 11 .30
E?
N
Check Power Off
Ch k A/C d
Check outlet
CPU
Y
☞A22
E
rror
?
Y
Check
Power
Off
Mode
Ch
ec
k
A/C
cor
d
Check for all 3- phase
power out
Replace Main B/D
CPU
Abnormal
Replace Power B/D
N
Y
Normal?
End
Abnormal
1
Fix A/C cord & Outlet
and check each 3
phase out
(If Power Off mode is
not displayed)
Check Power B/D
lt
Y
Replace Main B/D
Normal
voltage?
vo
lt
a
g
e
N
Replace Power B/D
※ Caution
Check and fix exterior
of Power B/D Part
Status Power off List Explanation
"POWEROFF_REMOTEKEY" Power off by REMOTE CONTROL
"POWEROFF_OFFTIMER" Power off by OFF TIMER
"POWEROFF_SLEEPTIMER" Power off by SLEEP TIMER
"POWEROFF_INSTOP" Power off by INSTOP KEY
* Please refer to the all cases which
can be displayed on power off mode.
Normal
"POWEROFF_AUTOOFF" Power off by AUTO OFF
"POWEROFF_ONTIMER" Power off by ON TIMER
"POWEROFF_RS232C" Power off by RS232C
"POWEROFF_RESREC" Power off by Reservated Record
"POWEROFF_RECEND" Power off by End of Recording
"
POWEROFF SWDOWN
"
Power off by S/W Download
POWEROFF
_
SWDOWN
Power
off
by
S/W
Download
"POWEROFF_UNKNOWN" Power off by unknown status except listed case
Abnormal
"POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble
"POWEROFF_CPUABNORMAL" Power off by CPU Abnormal
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LG 42LB650T Specifications

General

Brand	LG
Model	42LB650T
Category	LED TV
Language	English