Denon AVR-X4000 Service Manual page 109

Operation waveform for each part
A
(Caution: High voltage, electric shock)
LF902
LF-4ZB-E273H
SMPS unit
(Unloaded)
A
Set
A
After primary side rectification
B
(Caution: High voltage, electric shock)
C9002
0.01uF 250V
1N4007
D9001
1N4007
D9002
D9003 1N4007
1N4007
D9004
D9005 1N4007
D9006 1N4007
R9002 R9003
1M(0.2W) 1M(0.2W)
C9003
0.01uF 250V
ZD901
39V
ZD902
39V
ZD903
22V
ZD904
JUMPER
ZD905
R9007
JUMPER
270K(1608)
ZD906
JUMPER
ZD907
5 3
JUMPER
D C
R9005
Q9002
47(1608)
IC901 TOP258MG
KTC3198Y
S
Q9001
6 7 8
KTC3198Y
Primary drain
C
T9001
ST-4430A
1
10
2
3
D9008 ZD918
4
1N4007 22V
5
6
PC123Y22
2 1
X
V
C9028
2200P 250V
9 10
B
B
109
After secondary rectifications
D9014
3
2
1
OPEN
D9012
3
2
1
SRL3060P
11
8
7
IC902
C9029 0.1uF(1608)
R9030 OPEN(1608)
BK903
CMD1A629 C9030 OPEN(1608)
C
C