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Troubleshooting
5-12 Samsung Electronics
CVBS Output Error
Pin of VDDP
in ZIC1 has normal level?
27MHz clock
input is normal at
pin 142in ZIC1?
Analog output
is normal at pin 159
in ZIC1?
Check the RCA cable.
Check the connection between
pin1 in ZIC1 and pin4 in PIC1.
Check ZY1.
Check the soldering of ZIC1.
No
No
Yes
No
Yes
Analog signals are
inputted normally
VIC1-4
Yes
No
Power is
normal at VIC1-1, 28
Yes
No
Yes
C
Check the connection between
pin158 in ZIC1 and VIC1.
Check the connection between
VIC1-1 and VL6
Yes
Yes
Yes
Check the connection between
VL6 and pin 1in VIC1.
No
Check the soldering of VIC1
No
Check the connection between
VIC1 and output jack.
No
Pin 3,13 in VIC1
is in high state?
Peak to peak
voltage level of VIC1-20
Video signal of
about 1V appears at
output jack?
(VIC-MUTE Waveform)
(CVBS Waveform)