Sharp XV-Z9000U Service Manual page 47

Checking IC3504 (3D
Noise Reduction) and its
Peripheral Circuits
Are there the input signals
at pins (88) (Y signal) and
(96) (C signal) of IC3504?
YES
Are there the output
signals at pins (84) (Y
signal) and (83) (C signal)
of IC3504?
YES
Check the line up to the
PC board connector or
the circuits that follow the
PC board.
NO
Check the signal input
circuit or IC2505 and its
peripheral circuits.
NO
Check IC3504 and its
peripheral circuits.
47
XV-Z9000U/E