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Standard Repair Process
Error
symptom
* Please refer to the all cases which can be displayed on power off mode.
Power Off list
Power off when TV is not turned off during a certain time
KEYTIMEOUT
RESULT : micom force to trigger TV power off.
CONDITION : When pressing power key while power on/off status, CPU does not response within 8 seconds
Almost the same as Power Off by KEYTIMEOUT. If there is no vaild communication
Bet ween CPU and MICOM for more than 5 seconds, the MICOM switcheds off PSU and
1SEC Power OFF
Records. Power off by 1SEC Power off. In this case, we don't have information where the
malfunction exactly occurred. But in in indicates that CPU had stopped and rebooted.
In case of AC Off (It is normal when the power cord is unplugged.)
ACDET
If there are many ACDETs connected, Power Board is defective
CPUABNORMAL
If the CPU attempts to reset in case of abnormal operation and Shut Down in case of failure.
Power off when receiving no ack.
NO POLING
RESULT : TV power off/on (Reboot)
CONDITION : There is no I2C response from CPU for 15 seconds.
CPUCMD
Power off by main SoC command.
Power off by module error (OLED)
INV_ERROR
CONDITION : OLED Module send signal to micom
ONRF_FAIL
RESULT : Reboot,
PNWASHFAIL
Power off by panel noise wash function fail case.
RESET
When Micom is reset by AC Off
KEY
Power off by Local key
OFFTIMER
Power off by Off timer
SLEEPTIMER
Power off by sleep timer
NOSIG
Power off by No Signal
FANSTOP
Power off by FAN operation stopped
INSTOP
Power off by Instop Key
AUTO OFF
Power off by auto off function
RESREC
Power off by reserved recording
RECEND
Power off when recording stops
SWDOWN
Reboot by SW down load function
UNKNOWN
No meaning (same as initial value)
COMP_END
OLED threshold voltage degradation(Compensation) completes.
PNWASHDONE
Power off by panel noise wash function complited. (OLED)
B. Power error
Off when on, off while viewing, power auto on/off
Explanation
CONDITION : OLED module compensation is running but fails.
Established
date
Revised date
8
Action contents
Check & Change Main B/D
Check & Change Main B/D
Normal
Check & Change Power B/D
Check & Change Main B/D
Check & Change Main B/D
Check & Change Main B/D
Check & Change OLED Module
Check & Change OLED Module
Check & Change OLED Module
Normal Case
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