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Abnormal color of video picture
Check whether the 27MHz
output signal is normal.
Check whether the 3.3V
and 1.8V power supply
voltages on the decoder
board are normal.
Abnormal color of
video picture
Yes
Yes
Yes
Check whether the
video filter network
circuit is normal.
Yes
change U2
4-18
Remark: Trouble shooting chart for
No
Check Y1, R15, R217, C17 and C18
No
Check other of power supply electric
circuit
No
Correct the connection
Trouble shooting chart
DVP5166K/XX, DVP5168K/XX
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