Service manual

46
XV-Z2000
DT-400
Checking the IRIS, FOCUS and
ZOOM motors
Do all the motors function?
Check the optical mechanism.
YES
YES
YES
YES
YES
NO
NO
YES
YES
NO
NO
NO
NO
Is there I2C signal at pins (2) and
(3) of IC8201?
Is there any signal at the following
cases?
Zoom:Pin (3) and (7) of IC8205
Focus:Pin (11) and (15) of IC8205
Iris:Pin (2) and (4) of IC8206
Is there signal at pins (1) thru (4)
of P8201 and pins (1) and (2) of
P8202?
Check the connection cable and
optical mechanism unit.
Check IC8205, IC8206 and their
peripheral circuits.
Check IC8201 and its peripheral
circuits.
Check IC2002 and its peripheral
circuits.
Is 3.3V of IC8204 outputted as
specified?
Check the B+6V input line, IC8204
and its peripheral circuits.
Check the line up to the input
section and the remote control
receiver.
Check pins (16) and (17) of
IC2002 and their peripheral
circuits.
Are there remote control receiver
and key signals at pin (9) of
IC2002, pins (4) thru (7) as well as
(47) thru (49) of IC2002?