Samsung DSB-S300G Service Manual page 24

RGB Signal Missing (SCART Jack)
Check DTV Output Select
switch RGB mode or not.
Yes
Check R/G/B signalat
ŒR708, ´R709, ˇR710
Yes
Check R/G/B signal at
ŒC712, ´C711, ˇC710
Yes
Check R/G/B signal
at Pin ¨42, ˆ40, Ø38
OF U701
Yes
Check R/G/B signal at
Pin ¨15,ˆ11,Ø7
of SCART Jack
Yes
Check RGB-Jack Connection
(STB°ÍTV).
Samsung Electronics
No
Change to RGB mode.
Check Failure mode of
No
U302(STi5100).
Check Open or Short at
Video filter circuit.
No
R : C755,L710,C767,C771,R738
G : C761,L711,C766,C772,R741
B : C757,L707,C764,C770CR740
Check Failure mode
No
of U701(STV6412A)
Check Open or Short at the circuit
No
R : R805,R811,C808
G : R804,R810,C807
B : R803,R809,C806
Troubleshooting
ΠR708,C712
´ R709,C711
ˇ R710,C710
¨ Pin 42,15
ˆ Pin 40,11
Ø Pin 38,7
5-5