Marantz NR1605/U1B - Page 80

Input
CVBS
B
Check the set value of each
IC. Are the voltage values as
follows?
HDMI PCB
N1018 - 3pin : Hi(3.3V)
N1018 - 4pin : Hi(3.3V)
N1018 - 5pin : Lo(0V)
Is the power supply voltage
being output correctly?
V+5V : C5407 : + side
V-5V : C5421 : - side
Is a signal being output from
the video amplier?
CVBS : IC5401 1pin
•The circuit between IC5401
and JK5400 are faulty.
•Check the IC5401 power supply
voltage and check the soldering of
the surrounding circuits.
•The circuit between IC5401 and
JK5400 are faulty.
Use the jigs to extend the
HDMI PCB.
The HDMI PCB is faulty.
Check the connection between the
FRONT CONNECTOR PCB and the
VIDEO PCB.
NO
NO
NO
YES
YES
YES
b
All parts are VIDEO PCB parts unless otherwise specied.
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