Denon AVR-1612 - A

48
Input
CVBS
A
Check on set value of each IC.
Is they the following voltage
values?
SIDE CONNECTOR B'D
CN254-8pin : H(3.3V)
CN254-7pin : L(0V)
CN254-6pin : L(0V)
CN254-5pin : L(0V)
CN254-4pin : H(3.3V)
Is the signal output from the
video amplier?
V : IC401-1pin
Check power supply voltage of
IC401, and surrounding circuitry
soldering.
Check cable between main
unit and monitor or check
monitor.
Is the signal input to the video
amplier?
V : IC401-9pin
Check the pattern from JK405 to
IC401 and check cable between
main unit and player or check player.
Extend DIGITAL B'D using a jig.
REGULATOR B'D aw.
DIGITAL B'D aw.
NO
NO
NO NO
YES
YES
YES
YES
b
Unless specied, INPUT B'D part.
Is the power supply voltage
correctly output?
V+5V : C4096 : + side
V-5V : C4099 : - side