Samsung DVD-R157 Service Manual page 28

Trouble Shooting
S-Video output error
Pin8 in CN3 of Jack PCB or
CON2 of Main PCB has *
Normal(5v) at VIC1(pin1)?
About P-P1V appears at
5-4
Pin10 and
normal level?
Yes
Analog signals are
Inputted normally
VIC1(pin4,2)
Yes
Power is
Yes
Pin5 in VIC1 is
In high state?
Yes
Video signal of
Output Jack?
Yes
Check the RCA cable
No
Check the DIC1 on MAIN PCB
Check the connection between
No
Pin10 and Pin8 in CN3 Of JACK PCB
and VIC1
Check the connection between
No
VIC1[pin1] and Power line (PPLI1,
PPII1).
Check the connection between
No
VIC1(PIN5) and IC601(PIN89).
Check VIC1 peripheral circuit.
# Nomal level
: pin 10 is 1Vpk-pk
pin 8 is 0.28V on color burst
No
Check the connection between
VIC1 and output jack.
Y (Pin10 of Main CON2
Pin10 of Jack CN3)
C (Pin8 of Main CON2
Pin10 of Jack CN3)
Samsung Electronics