Samsung DSR9500EMVIA - Manual (Page 38)

Troubleshooting
Samsung Electronics 4-7
NO VIDEO (TV SCART, RCA)
U801 (12) video signal? Q826 Base signal?
BD801 is 12V?
Q825 Base signal?
Yes
No
No
No
Check Q826 Check Q825.
Check U801.
Check T802, T801.
Check D805, D806. U801 (14) signal? U801 (9, 10, 11) is 0V?
Q804, Q807 Emitter signal?
Yes
Yes
Yes
Yes
Check BD801. Check U100.
Check Q804, Q807.
No
R807, R827 signal? Check R807, R827.
No