Denon AVR-1712, Service Manual

Page: 54 / 161

54
Input
COMPONENT
C
Check on set value of each IC.
Is they the following voltage
values?
HDMI B'D
FB100 : H(5V)
FB103 : H(5V)
FB122 : H(5V)
Is the power supply voltage
correctly output?
V+5V : C951 : + side
V-5V : C947 : - side
Is the signal output from the
video amplifier?
COMP-Y : IC825-24pin
COMP-CB : IC825-22pin
COMP-CR : IC825-20pin
Check power supply voltage of
IC825, and surrounding circuitry
soldering.
Check FRONT CONNECTOR
B'D flaw, and connection of
FRONT CONNECTOR B'D or
HDMI B'D and VIDEO B'D.
Is the signal input to video amplifier?
COMP-Y : IC825-5pin
COMP-CB : IC825-12pin
COMP-CR : IC825-13pin
Check cable between main unit and
player or check player.
Extend HDMI B'D using a jig.
REGULATOR B'D flaw.
HDMI B'D flaw.
Check connection of FRONT
CONNECTOR BD and AV BD.
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
b
Unless specified, AV B'D part.
Is the power supply voltage
correctly output?
FRONT CONNECTOR B'D
V+5V : CP13B-4pin
V-5V : CP13B-1pin
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