Denon AVR-X3100W Service Manual page 94

C
Input
COMPONENT
q
Check the set value of each
IC. Are the voltage values as
follows?
DIGITAL PCB
BN21A - 4pin
BN21A - 3pin
YES
w
Use the jigs to extend the
DIGITAL PCB.
e
Is the power supply voltage
being output correctly?
V+5V : C5107 : + side
V-5V : C5109 : - side
YES
r
Is a signal being output from
the video amplifier?
BN21B 15PIN
COMP-CB
COMP-CR
YES
The circuit between IC516
and JK513 are faulty.
NO
The DIGITAL PCB is faulty.
: Lo(0V)
: Hi(3.3V)
NO Check the connection between the
SIDE CONNECTOR PCB and the
VIDEO PCB.
•Check the IC516 power supply voltage and check the soldering of the surrounding
NO
circuits.
: J5032
•The circuit between IC516 and JK512 are faulty.
: J5008
•Check the cable between the unit and the player, and check the player itself.
: J5009
All parts are VIDEO PCB parts unless otherwise specified.
b
94