Denon AVR-789 Service Manual page 27

Q Q
C
3 7 6 3 1 5 1 5 0
Input
CVBS/S
Check power supply voltage
+5V : CN2005-8pin NG To troubleshooting 1.1 Power not turn
-5V : CN2005-7pin on.
MC_+5V : CN2001-5pin
OK
Check output of AMP
Output V : IC2016-33pin NG
Output Y : IC2016-31pin
Output C : IC2016-29pin
OK
Check input of input selector and
Check cable between main unit
and monitor or Check monitor.
Unless specified, VIDEO UNIT part.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
.
Check VCRINH NG Check soldering of VIDEO CNT UNIT
INH : CP2002-10pin : H(+5V) connector base, and check poor contacts.
surrounding circuitry soldering.
Input : IC2009,IC2010,IC2011
x a o
y
i
http://www.xiaoyu163.com
8
OK
OK
Q Q
3 7 6 3
u 1 6 3
.
27
AVR-1909/789, AVC-1909
http://www.xiaoyu163.com
9 2 4 9 8
NG
NG NG
OK
1 5 1 5 0 8 9 2 4
m
c o
2 9 9
9 8 2 9 9