Service manual

Troubleshooting
Samsung Electronics 7-11
CVBS output error at AV1
Video signal outputs
normally in RCA jack?
Function select
signal is 9.5~12V at
pin 8 in AV1?
See "Video output error in
RCA Jacks"
Check the connection between
SCQ1~SCQ7 block and pin 100 in FIC1.
Yes Yes
No No
CVBS signal is
inputed at pin 12
in SCIC2?
Yes
No
CVBS signal is
outputed at pin 14
in SCIC2?
Yes
No
CVBS signal is
outputed at pin 14
in SCIC3?
Yes
Check the connection with
pin 30 in VIC50.
Check the connection between pin 9,
10, 11 in SCIC2 and SCQ8 --> "L" state.
No
Œ Check the connection between pin 14 in SCIC2 and pin 12 in SCIC3. ´ Check the connection between pin 9, 10, 11 in SCIC3 and pin 92 in FIC1 --> "L" stare.
No
Check the connection between
pin 5 in SCIC4 and SCART jack.
Œ
Check the connection between
pin 14 in SCIC3 and pin 8 in SCIC4.
´
Check the power level at
pin 7 in SCIC4.
CVBS signal is
outputed at pin 5
in SCIC4?
CVBS signal is
outputed at pin 19
in AV1?
Yes
No
Yes
Check the SCART cable.
Fix the TV ASPECT in setup menu to 4/3 LB.
Connect to 4/3 ASPECT TV.
CVBS output error at AV2
Video signal outputs
normally in RCA jack?
CVBS signal is
inputed at pin 12
in SCIC1?
See "Video output error in
RCA Jacks"
Check the connection with
pin 30 in VIC50.
Yes
No No
CVBS signal is
outputed at pin 14
in SCIC1?
Yes
No
CVBS signal is
outputed at pin 4
in SCIC4?
Yes
No
CVBS signal is
outputed at pin 19
in AV2?
Yes
Check the connection betweenpin 9, 10,
11 in SCIC2 and SCQ8 --> "L" state
No
Check the connection between pin 4 in SCIC4 and SCART jack. Œ Check the connection between pin 14 in SCIC3 and pin 8 in SCIC4. ´ Check the power level at pin 7 SCIC4.
Yes
Check the SCART cable.