IC701
CB701
IC702
IC703
IC704
W701
W702
W703
W704
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
DVR-700/NS-PSW700/NS-P700
106
POWER
Primary side ground
AC2.2
AC23.3
AC24.8
AC4.3
AC8.7
5 k-ohms
10 W
5 k-ohms
10 W
(0)
(317.8)
(317.6)
(316.7)
(450.6)
(450.6)
(317.2)
(317.2)
(0)
(0)
(4.0)
(16.4)
(1.3)
(0)
28.3
(29.4)
(14.3)
14.3
(2.0)
(1.5)
(16.4)
(16.4)
(16.4)
(1.3)
(0)
(0)
(2.0)
(4.9)
(4.0)
(–0.2)
(1.5)
0
0
0
30.3
0
–32.0
–32.0
–30.3
–30.3
0
–29.7
14.3
0
0
8.6
3.0
14.1
3.6
3.6
0
0
0
0
0.8
11.5
11.6
(109.5)
(108.1)
AC IN
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures
during servicing, such as wearing insulating gloves.
• Note that positions indicated below are dangerous even after the power is turned off because an electric charge
remains and a high voltage continues to exist there.
Before starting any repair work, perform discharge by connecting a discharge resistor (5k-ohms/10W) between
terminals at following positions. The time required for discharging is about 30 seconds.
1. C711 on POWER P.C.B..
2. C719 on POWER P.C.B..
0.8V/0.68V
8.5V/7.9V
5V VCC
ENB
5V REF
3.5V
4V
RT CT
OSC
+0.24V
R
S
QB
Q
ENB
OUT
PUT
16.5V/9V
UVLO
15.5V
15.5V
5.2 A
0.95mA
PWM
0.8V
Dmax
FA5510: 46%
FA5511: 70%
5V Controlled block
FB
(2)
REF
(7)
CS(8)
VCC(6)
OUT
(5)
GND
(4)
IS+(3)
RT(1)
FF
IC702
: FA5511N-D1-TE1
CMOS IC for switching power supply control
IC704
: NJM431U
Adjustable precision shunt regulator
ANODE
REFERENCE
CATHODE
1
2
3
to SUB_CB201
P
age 105
A3
to SUB_CB202
P
age 105
A4
to SUB_CB203
P
age 105
A5
to SUB_CB204
P
age 105
A7