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Abnormal color of video picture
Abnormal color of
video picture
Yes
Check
whether
27MHz output signal is
Yes
Check whether the 3.3V
and 2.5V power supply
voltages on the decoder
board are normal.
Yes
Check whether the
video filter network
circuit is normal.
Yes
Check if the Y1 to Y6 signals on Pin164
to Pin 173 of U3 are normal
All manuals and user guides at all-guides.com
4-8
No
the
Check Y1, R56, R56, C39 and C40
No
No
No
Trouble shooting chart
Check other of power supply electric
circuit
Correct the connection
change U3 or U14、U15
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