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4. Some source channel work abnormally.
a) AV1 channel has no picture
Check NS01 peripheral
circuit, crystal oscillator
and its power supply.
SCART CVBS
b)
Check NS01 peripheral
circuit, crystal oscillator
and the power supply.
c) S-VIDEO channel has no picture
Check NS01 peripheral
circuit, crystal oscillator
and the power supply.
Check CS30 has
signal input.
Yes
channel has no picture
Check CS28 has
signal input.
Yes
Check CS25, CS26
has signal input.
Yes
16
No
The route from AV 1
socket to NS01 exists
problem.
No
The route from SCART
CVBS socket to NS01
exists problem.
No
The route from S-
VIDEO socket to NS01
exists problem.
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