Samsung PL43E400U1F - Digital Part Troubleshooting

4.Troubleshooting
4.1.4.DigitalPartTroubleshooting
1)Itisdifculttocheckdigitalvideosignalbecauseoftoofastandsmallsignal.
2)Checkdigitalvideosignal,UseH-sync,V-syncandClockforbasic.
3)EachdigitalvideoICsconnectedwithdataline,H-sync,V -syncandClockline.
4)CheckH-syncperiod,V -syncperiod,Clockperiod.
5)Ifperiodisoutofspec,ChangetheIC.
H-Sync
1 Period(15.63kHz )
V-Sync
1 P e riod(50Hz)
Clock
1 P e riod(13.5MHz)
Ye s
Ye s
Ye s
Re place the Main Board.
Re place Fuse (F801S).
Is th e Fus e(F8 01S) of the S MPS Powe r
Input P art blown?
Re place the S MPS .
SMPS CN801
PIN2 : S TB 5V
PIN1_P S ON : Che ck to s e e if it is 0V
Is th e S MP S CN801 connector a nd the
Main Board CN201 conne cte d?
Is th e S MP S CN801 connector a nd the
Main Board CN201 conne cte d?
No
No
No
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