Marantz AV7005 Service Manual page 43

A
Input
CVBS
Check power supply voltage.
V+5V : N2004-4pin
V-5V : N2004-1pin
OK
Check on set value of each IC.
HDMI B'D
L4900 : Check I C communication
2
waveforms.
L4901 : Check I 2 C communication
waveforms.
OK
Extend HDMI B'D using a jig.
Check output of selector (U2003).
V : K2003 (Lead of terminal)
V : JV154
OK
Check cable between main unit
and monitor or check monitor.
Check FRONT CONNECTOR B'D
fl aw, and connection of FRONT
CONNECTOR B'D or HDMI B'D
and VIDEO B'D.
NG
REGULATOR B'D fl aw.
NG
HDMI B'D fl aw.
NG
Check input of selector (U2003).
V : JV82
OK
Check power supply voltage of
U2003, and soldering of IC.
43
NG
Check cable between main unit
and player or check player.
b Unless specifi ed, VIDEO B'd part.