Off When On, Off While Viewing, Power Auto On/Off - LG 32LN5400 Service Manual

Standard Repair Process
LCD TV
Check outlet
Check A/C cord
Check for all 3- phase
power out
* Please refer to the all cases which
can be displayed on power off mode.
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
B. Power error
Error
symptom

Off when on, off while viewing, power auto on/off

N
Error?
Y
Fix A/C cord & Outlet
and check each 3
phase out
☞A14
Check Power Off
CPU
Mode Abnormal
Abnormal
☞A13
(If Power Off mode
is not displayed)
Check Power B/D
voltage
※ Caution
Check and fix exterior
Replace Power B/D
of Power B/D Part
Status Power off List
"POWEROFF_REMOTEKEY"
"POWEROFF_OFFTIMER"
"POWEROFF_SLEEPTIMER"
"POWEROFF_INSTOP"
"POWEROFF_AUTOOFF"
Normal "POWEROFF_ONTIMER"
"POWEROFF_RS232C"
"POWEROFF_RESREC"
"POWEROFF_RECEND"
"POWEROFF_SWDOWN"
"POWEROFF_UNKNOWN"
"POWEROFF_ABNORMAL1"
Abnormal
"POWEROFF_CPUABNORMAL"
Established
2012. 01 .14
date
Revised date
Replace Main B/D
Replace Power B/D
1
Y
Normal
Replace Main B/D
voltage?
N
Explanation
Power off by REMOTE CONTROL
Power off by OFF TIMER
Power off by SLEEP TIMER
Power off by INSTOP KEY
Power off by AUTO OFF
Power off by ON TIMER
Power off by RS232C
Power off by Reservated Record
Power off by End of Recording
Power off by S/W Download
Power off by unknown status except listed case
Power off by abnormal status except CPU trouble
Power off by CPU Abnormal
8/14
Y
End
Normal?
N
LGE Internal Use Only