Read Sharp XV-Z12000 (serv.man12) Service Manual online
40
XV-Z12000
YES
NO
Checking the
Component and RGB
Inputs
Are there signals at pins
(34), (36) and (38) of
IC2505?
(34), (36) and (38) of
IC2505?
Check the line from
Q2518 through Q2520 to
Q2523 and its peripheral
circuits.
Q2518 through Q2520 to
Q2523 and its peripheral
circuits.
Check the board-to-board
connections or the
circuits that follow the PC
board.
connections or the
circuits that follow the PC
board.
YES
NO
Check the signal input
circuit or IC2505 and its
peripheral circuits.
circuit or IC2505 and its
peripheral circuits.
Are there signals at pins
(60/30),(58/28),(56/26) and
(51/21) on the board-to-
board section of P3580?
(60/30),(58/28),(56/26) and
(51/21) on the board-to-
board section of P3580?
YES
NO
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?
at pins (88) (Y signal) and
(96) (C signal) of IC3504?
Check IC3504 and its
peripheral circuits.
peripheral circuits.
Check the line up to the
PC board connector or
the circuits that follow the
PC board.
PC board connector or
the circuits that follow the
PC board.
NO
YES
Are there the output
signals at pins (84) (Y
signal) and (83) (C signal)
of IC3504?
signals at pins (84) (Y
signal) and (83) (C signal)
of IC3504?
Check the signal input
circuit or IC2505 and its
peripheral circuits.
circuit or IC2505 and its
peripheral circuits.
Click on the first or last page to see other XV-Z12000 (serv.man12) service manuals if exist.