Troubleshooting
Samsung Electronics
9-17
CVBS output error
27MHz clock
input is normal at
pin 2, 3 in U1?
Analog output
is normal at pin 110
in U1?
Check DY1.
Check the soldering of
R10, R7, R8.
Yes
No
No
Analog signals are
inputted normally
VIC1-2?
Yes
No
Power is
normal at VIC1-1, 34?
Yes
No
Pin 5 in VIC1
is in LOW state?
Yes
Check the connection netween
pin 133 in ZIC1 and VIC1.
Check the connection betwen
VIC1-1 and VL6
Check the VIC1
Pheriperal circuit.
No
No
Check the connection between
VIC1 and output jack.
Pin of D3.3V
in U1 has normal level?
Check PPIC3-2
3.3V or NOT
Yes
No
Video signal of
about 1V appears at
output jack?
Yes
Yes
Check the RCA cable.
