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Standard Repair Process
LCD TV
symptom
Check outlet
Check A/C cord
Check for all 3- phase
Check for all 3- phase
power out
* Please refer to the all cases which
can be displayed on power off mode.
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Only for training and service purposes
B. Power error
Error
Off when on, off while viewing, power auto on/off
Off when on off while viewing power auto on/off
N
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
☞A19
Check Power Off
Mode
Abnormal
Abnormal
☞A18
(If Power Off mode
(If Power Off mode
is not displayed)
Check Power B/D
voltage
※ Caution
Check and fix exterior
Ch
k
d fi
i
of Power B/D Part
Status
Power off List
"POWEROFF_REMOTEKEY"
"POWEROFF REMOTEKEY"
"POWEROFF_OFFTIMER"
"POWEROFF_SLEEPTIMER"
"POWEROFF_INSTOP"
"POWEROFF_AUTOOFF"
N
Normal
l
"POWEROFF ONTIMER"
"POWEROFF_ONTIMER"
"POWEROFF_RS232C"
"POWEROFF_RESREC"
"POWEROFF_RECEND"
"POWEROFF_SWDOWN"
"POWEROFF_UNKNOWN"
"POWEROFF UNKNOWN"
"POWEROFF_ABNORMAL1"
Abnormal
"POWEROFF_CPUABNORMAL"
7
Established
2013.01.31
date
Revised date
Revised date
CPU
Replace Main B/D
1
Y
Normal
Replace Main B/D
voltage?
N
Replace Power B/D
Explanation
Power off by REMOTE CONTROL
P
ff b REMOTE CONTROL
Power off by OFF TIMER
Power off by SLEEP TIMER
Power off by INSTOP KEY
Power off by AUTO OFF
P
Power off by ON TIMER
ff b ON TIMER
Power off by RS232C
Power off by Reservated Record
Power off by End of Recording
Power off by S/W Download
P
Power off by unknown status except listed case
ff b
k
Power off by abnormal status except CPU trouble
Power off by CPU Abnormal
7/16
7/16
Y
Normal?
End
N
Replace Power B/D
t t
t li t d
LGE Internal Use Only
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