Marantz AV7701, Service Manual

Page: 93 / 266

93
Input
CVBS,COMPONENT
A
Check on set value of each IC.
Is they the following voltage
values?
VSDA : T10
VSCL : T9
Refer to 94 page.
(HDMI B'D)
Is the signal input to video
decoder (IC121)?
<Input signal>
V : R1243
COMPONENT(Y) : R1245
COMPONENT(Cb) : R1244
COMPONENT(Cr) : R1246
(HDMI B'D)
FRONT CONNECTOR B'D flaw
or defective connection of the
connector.
The parts between
CONNETOR(CN21B) and IC121
are defective
VIDEO B'D flaw.
V/COMPONENT : B-
q
REGULATOR B'D flaw.
VIDEO B'D and REGULATOR
B'D and connection of the wire
are defective.
HDMI B'D flaw.
NO
NO
YES
YES
Is the power supply voltage
correctly output?
V+5V : CN52B-6pin
V-5V : CN52B-8pin
(SIDE_CNT B'D)
NO
YES
Monitor Out (V/COMPONENT)
VIDEO B'D flaw.
V/COMPONENT : B-
w
HDMI Out
To Troubleshooting " 3.HDMI/
DVI " (Refer to 97 page.)