Marantz NR1606/U1B Service Manual page 74

B
Input
CVBS
q
Check the settings of each IC.
Are the following voltages
set?
HDMI PCB
N1039 - 12 pin
N1039 - 13 pin
N1039 - 14 pin
YES
w
Extend the HDMI PCB using
the jig.
e
Is the power voltage being
output correctly?
V+5V : C5431 : + side
V-5V : C5428 : - side
YES
r
Is a signal being output from
the video amplifier?
CVBS : R5413
: R5439
YES
• Check the connection between the FRONT CONNECTOR PCB and the VIDEO PCB.
• Check the soldering of CP4611 and CP4613 on the FRONT CONNECTOR PCB.
• Check the soldering of CN5402 on the VIDEO PCB.
• Check the soldering of JK5401 on the VIDEO PCB.
NO
HDMI PCB faulty.
: Hi (3.3 V)
: Hi (3.3 V)
: Lo (0 V)
NO
Check the connection between the FRONT
CONNECTOR PCB and the VIDEO PCB.
NO
• Check the IC5401 power voltage and check the soldering of the surrounding circuits.
• The pattern between IC5401 and JK5401 is faulty.
These instructions refer to the VIDEO PCB unless otherwise specified.
b
74
NO
The regulator part of REG PCB is
faulty.