Read LG 42LH250C (CHASSIS:LD91Z) Service Manual online
B. Power error
Off when on, off while viewing, power auto on/off
Error?
N
Y
Check Power Off
Mode
Mode
Fix A/C code & Outlet
and describe 3 wave
length
and describe 3 wave
length
Check A/C code
Check for 3 wave length
Check outlet
Replace Main B/D
CPU
Abnormal
(If Power Off mode
is not displayed)
Check Power B/D
voltage
is not displayed)
Check Power B/D
voltage
Y
N
Replace Main B/D
Normal
voltage?
Replace Power B/D
Replace Power B/D
N
Y
Normal?
End
※ Caution
Check and fix exterior
of Power B/D Part
of Power B/D Part
☞A22
☞A23
Established
date
Revised date
2008. 3 .05
7/13
LCD TV
Error
symptom
Standard Repair Process
7
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
"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
Normal
"POWEROFF_UNKNOWN"
Power off by unknown status except listed case
"POWEROFF_ABNORMAL1"
Power off by abnormal status except CPU trouble
Abnormal
"POWEROFF_CPUABNORMAL"
Power off by CPU Abnormal
* Please refer to the all cases which
can be displayed on power off mode.
Abnormal
1
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