Samsung PS51E450A1W - Analog Part Troubleshooting

4.Troubleshooting
Ye s
Ye s
Ye s
Re place the S pe a ker.
Re place the S MP S .
Is th e output volta ge of S MP S norma l?
(CN801 P IN 7 : 15V)
Re place the Main boa rd.
(1)
Is the s pe ake r output te rmina l of
the Main boa rd norma l?
Conne ct the cable prope rly or
replace the ca ble, if nece s sary.
Is the cable conne ction be tween
Main boa rd and the s pe a ker
properly connecte d?
No
No
No
So und Output S hape
(1)
CAUTION
MakesuretodisconnectthepowerbeforeworkingontheIPboard.
4.1.3.AnalogPartTroubleshooting
1)Itiseasytocheckanalogvideosignalthandigitalvideosignal.
2)Usereferencesignalinput.(ex.16Gray)
3)CheckSignalLevelandsync.
4)CheckSignalpathuntilinputofVideoDecoder.
•Tuner→Switch→VideoDecoder
•A VConnector→Switch→VideoDecoder
•Scart→Switch→VideoDecoder
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