Marantz NR1607 Service Manual page 72

B
Input
CVBS
q
Check the settings of each IC.
Are the following voltages set?
HDMI PCB
N1039 - 12 pin : Hi (3.3 V)
N1039 - 13 pin : Hi (3.3 V)
N1039 - 14 pin : Lo (0 V)
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.
b These instructions refer to the VIDEO PCB unless otherwise specified.
NO
HDMI PCB faulty.
NO
Check the connection between the FRONT CON-
NECTOR PCB and the VIDEO PCB.
NO
The regulator part of REG PCB is faulty.
NO
• Check the IC5401 power voltage and check the
soldering of the surrounding circuits.
• The pattern between IC5401 and JK5401 is
faulty.
C
Input
COMPONENT
q
Check the settings of each IC.
Are the following voltages set?
HDMI PCB
N1039 - 11 pin : Lo (0 V)
N1039 - 15 pin : Hi (3.3 V)
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?
COMP-Y : R5415
COMP-CB : R5421
COMP-CR : R5423
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 JK5402 on the VIDEO PCB.
b These instructions refer to the VIDEO PCB unless otherwise specified.
72
NO
HDMI PCB faulty.
NO
Check the connection between the FRONT CON-
NECTOR PCB and the VIDEO PCB.
NO
The regulator part of REG PCB is faulty.
NO
• Check the IC5402 power voltage and check the
soldering of the surrounding circuits.
• The pattern between JK5403, JK5404 and
JK5404 is faulty.