Samsung DVD-SH853, Service Manual

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Trouble Shooting
4-16 Samsung Electronics
Refer to wave pattern image of Fig. 4-11
Refer to wave pattern image of Fig. 4-12
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Refer to wave pattern image of Fig. 4-13
Refer to wave pattern image of Fig. 4-11
AV1 (RGB) Output Error
7,9 and 11 pin in CN3
of Jack PCB or CON2 of Main PCB
has normal level?
Check Main PCB
No
Yes
Analog signals
are inputted normally IC216
(pin27,28,29)
Check the RCA cable
Check the connection between
27,28,29 and 11 pin in CN3 of Jack
PCB and IC216 No
Yes
Power is normal
at IC216(pin30, 34)
Check the connection between
IC216 and PCN1 (pin30,34)
No
Yes
RGB control
signal level is 2~3V at 16pin of
SJACK (AV1JACK)?
Check the connection between
pin 51 of FIC1 and AV1 JACK
No
No
Yes
RGB Video
signal appears at 7,11,15pin of
AV1 output jack?
Check the connection between
IC216 and output jack
Yes
# IF Recorder is under Component mode (in OSD setup menu),
it does not output RGB out put.