Samsung DVD-V5450 Service Manual page 236

Samsung Electronics
CVBS output error
Pin of D3.3V
in U1 has normal level?
Yes
27MHz clock
input is normal at
pin 2, 3 in U1?
Yes
Analog output
is normal at pin 110
in U1?
Yes
Analog signals are
inputted normally
VIC1-2?
Yes
Power is
normal at VIC1-1, 34?
Yes
Pin 5 in VIC1
is in LOW state?
Yes
Video signal of
about 1V appears at
output jack?
Yes
Check the RCA cable.
No
No
No
Check the soldering of
Check the connection netween
No
pin 133 in ZIC1 and VIC1.
Check the connection betwen
No
No
Check the connection between
No
VIC1 and output jack.
Check PPIC3-2
3.3V or NOT
Check DY1.
R10, R7, R8.
VIC1-1 and VL6
Check the VIC1
Pheriperal circuit.
Troubleshooting
5-33