![background image](http://html.mh-extra.com/html/nad/c-720bee/c-720bee_service-manual_703246019.webp)
D5
2
15V
C5
4
N.
I.
AC POW
ER CORD
C535
4n7/400V
SW
52
POW
ER SW
IT
CH
1
2
3
CZ55
!
!
C51
10n/250V
D51
KBU8D
C52
10n/250V
D55
KBU8D
C517
15000uF/50V 10%
C518
15000uF/50V 10%
Q
518
C1815
Q
517
A1015
D531
T
IC116D
D532
T
IC116D
R558
1K
R563
22K
R561
100
R562
1K
R560
1K
R559
1K
R565
100
R564
22K
R531
0.05/3W
5% CE
R532
220
Q
510
A1015
Q5
9
A1015
R534
2K2
R533
2M
2
Q
519
A1015
Q
520
C1815
R566
4K7
D513
1N4004
R544
22K
C523
3300u/50V
C524
2200u/50V
1
2
3
4
CB54
1
2
3
CB55
!
!
!
!
!
F51
F52
F54
F53
!
!
!
!
H1
H2
L1
L2
G
GND
GND
+
46V
-46V
-37V +37V I-V AC DET
.
TR
IG
NAD C720BEE POWER CIR.
10%
10%
D501
DB104
C533
4700uF/16V
C536
100uF
1
2
3
CB56
1
2
3
CZ56
F55
500m
A/250V
6.3A/250V X4
RED
GRAY
BLACK
ORANGE
PURPLE
1
3
CB5
7
1
3
CZ5
7
1
2
3
4
5
CB5
1
1
2
3
4
5
6
7
CB5
2
1
2
3
4
5
6
7
CZ5
2
1
2
3
4
5
CZ5
1
1
2
3
CB5
8
1
2
3
CZ5
8
1
1
2
2
AC OUT
L
E
T
36.
4V
36.
4V
0V
28.
5V
28.
5V
8V
0V
R
567
10K
C53
330u/50V
C5
5
10uF
,50V
Q5
8
K
SA
1220
D5
3
30V
R
568
3K
3
1
2
3
4
5
6
7
8
9
10
CB5
3
CON1
0
T501
T
RANS
FORM
E
R
0V
32V
0V
VFD
VFD
-30V
5V
GND
D54
DB104
2.
1V
2.
1V
!
C5
6
0.
22uF
BLUE
BLUE
RED
RED
Y
E
LLO
Y
E
LLO
BLACK
D56
DB104
!
!
!
!
!
!
!
!
!
!
!
3
1
2
IC
51
A
M
S1117-5.
0
SCHEMATIC DIAGRAM (2/4)
POWER SUPPLY CIRCUIT FOR Vm1.6
PCB-2: POWER BOARD FOR Vm5.0