Sharp XV-Z10000 Service Manual page 48

XV-Z10000
Checking the
Component and RGB
Inputs
Are there signals at pins
(34), (36) and (38) of
IC2505?
YES
Are there signals at pins
(3), (5) and (6) of IC2507?
YES
Are there signals at pins
(56/26), (58/28) and
(60/30) on the board-to-
board section of P3580?
YES
Are there signals at pins
(49/19), (51/21) and
(53/23) on the board-to-
board section of P3580?
YES
Check the board-to-board
connections or the
circuits that follow the PC
board.
NO
Check the signal input
circuit or IC2505 and its
peripheral circuits.
NO
Check the line between
Q2509 and Q2517 and its
peripheral circuits, or
IC2507.
NO
Check the line between
Q2518 and Q2520 and its
peripheral circuits.
NO
Check the line from
Q2525 through Q2523 to
Q2524 and its peripheral
circuits.
48
NO
There are no RGB colors.
YES
Check the circuit of the
color that fails to appear.
NO
There are no RGB colors.
YES
Check the circuit of the
color that fails to appear.