Marantz NR1605/U1B - Page 81

Input
COMPONENT
C
Check the set value of each
IC. Are the voltage values as
follows?
HDMI PCB
N1018 - 2pin : Lo(0V)
N1018 - 6pin : Hi(3.3V)
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?
COMP-Y : IC5402 20pin
COMP-CB : IC5402 18pin
COMP-CR : IC5402 16pin
The circuit between IC5402
and JK5402 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
AV PCB.
NO
NO
NO
YES
YES
YES
b
All parts are VIDEO PCB parts unless otherwise specied.
w
q
e
r
•Check the IC5402 power supply voltage and check the soldering of the surround-
ing circuits.
The circuit between IC5402 and JK5402 are faulty.
•Check the cable between the unit and the player, and check the player itself.
81