Marantz NR1601 Service Manual page 36

B
Input
COMPONENT
Check power supply voltage.
FRONT CONNECTOR B'D
V+5V : CP13B-4pin
V-5V : CP13B-1pin
OK
Check on set value of each IC.
HDMI B'D
L2701 : H(3.3V)
L2702 : H(3.3V)
OK
Extend HDMI B'D using a jig.
Check power supply voltage.
V+5V : IC811-21pin
V-5V : IC811-16pin
OK
Check output of video amplifier.
COMP-Y : IC811-24pin
COMP-CB : IC811-22pin
COMP-CR : IC811-20pin
OK
Check cable between main
unit and monitor or check
monitor.
Check FRONT CONNECTOR
B'D flaw, and connection of
FRONT CONNECTOR B'D,
AV B'D and HDMI B'D.
C
Input
CVBS/COMPONENT
Check input signal of VIDEO DECODER
HDMI B'D
V : L2718
COMPONENT-Y : L2717
COMPONENT-Cb : L2716
COMPONENT-Cr : L2715
OK
HDMI B'D flaw
NG
REGULATOR B'D flaw.
NG
HDMI B'D flaw.
NG
Check connection of FRONT
CONNECTOR BD and AV BD.
Check intput of video amplifier.
NG
COMP-Y : IC811-5pin
COMP-CB : IC811-12pin
COMP-CR : IC811-13pin
OK
Check surrounding circuitry
soldering of IC811.
NG
Check signal DET
COMPONENT_L2703 : H(+3.3V)
Check FRONT CONNECTOR B'D
flaw, and connection of FRONT
CONNECTOR B'D or HDMI B'D and
VIDEO B'D.
36
NG
Check cable between main unit and
player or check player.
NG
V_L2704 : H(+3.3V)
OK
b Unless specified, AV B'D part.
Input CVBS : to A
Input COPONENT : to B