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NO POWER
Symptom
- When turning on the Power button after connecting the power, the LED at the front of the monitor does not
operate.
Major
- Check whether the Power Switch at the back of the monitor is turned on.
checkpoints
- Check SMPS fuse and SMPS output power.
- Check the connections for SMPS and Main board inside the monitor.
- Check Main board power part and check also whether there is any abnormal output at other output terminals
Caution
Make sure to disconnect the power before working on SMPS
CN400
③
CN600
①②
f unct i on as s ' y
점 검
CN600 의 ①
① Pi n
15 에 5V DC 전 압
이 적 절 한 지 ?
Yes
CN600 의 ②
② Pi n
No
16 에 POW ER_EN
신 호 가 나 타 나 는 지 ?
Yes
SMPS 보 드 교 체
No
SMPS 보 드 점 검
R3032 at
I C300( Scal er ) 의
POW ER_EN 신 호 확 인
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