Denon AVR-X3200W Service Manual page 92

C
Input
COMPONENT
q
Check the set value of each
IC. Are the voltage values as
follows?
DIGITAL PCB
BN21A - 2pin
BN21A - 1pin
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?
COMP-Y
COMP-CB
COMP-CR : BN21B 11pin
YES
•Check the connection between the FRONT CONNECTOR PCB and the VIDEO PCB
•Check the soldering of the BN21B(VIDEO PCB) / BN21A(DIGITAL PCB )
/ CN21A(FRONT CONNECTOR PCB) / CN21B(FRONT CONNECTOR PCB)
•Check the soldering of the JK515(E3)
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
: J5002 circuits.
: J5001 •The circuit between IC516 and JK515/BN21B are faulty.
NO
All parts are VIDEO PCB parts unless otherwise specified.
b
92
The regulator part of REG_SPK
PCB is faulty.