CB501
CB502
CB503
IC501
IC503
IC507
W508
CB504
CB505
W509
W506
W507
IC504
IC511
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
I
J
K
L
M
N
YSP-600/HTY-760
78
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
INPUT 2/2
A-2
1
2
AC5.5
AC1.1
AC1.0
AC3.0
AC6.4
(111.6)
(333.7)
5.0
4.0
(4.0)
(5.1)
(15.2)
(1.3)
(113.9)
(332.5)
(476.4)
(33.2)
(33.2)
(1.0)
(1.0)
(1.3)
0
0
0
10.4
0
15.3
5.2
4.0
10.4
0
0
0
11.9
13.8
-24.2
-24.8
0
-26.3
-26.3
0
3.3
4.0
10.2
3.3
0
3.3
(0.8)
(7.6)
(7.6)
(0)
(0)
(0)
(0)
1.0
0.2
0
4.1
0.2
0
(0)
0.1
0
0
0
3.3
3.3
3.3
10.2
(0.8)
(7.6)
0.1
(4.0)
(3.5)
(3.8)
(0)
(3.9)
(0)
3.9
1.0
4.1
(143.5)
(143.5)
(0)
(78.5)
(0)
(78.5)
(3.5)
0.2
0.1
0
(0)
(4.0)
(0)
0
3.3
0
0
0.8
0.1
4.0
3.4
0
4.3
4.0
0
(15.2)
(4.0)
(15.2)
(0)
(15.2)
(-0.1)
5.0
(0.7)
4.0
(0)
(0.7)
(4.0)
(0)
(0.1)
-
+
Error Amp.
Star
ter
V
o
ltage
Ref
e
rence
Input Short Circuit
Protection
Ov
er Current
Protection
Over Current
Protection
Rush Current
Protection
Thermal
Protection
IN
1
GND
3
OUT
2
IC506
: AN77L04
Low dropout voltage regulator
IC507
: NJM431U
Adjustable precision shunt regulator
ANODE
REFERENCE
CATHODE
1
2
3
IC502
: TC4013BP
Dual D-type flip flop
4
RESET1
1
Q1
6
SET1
5
DATA1
CL
3
CLOCK1
CL
CL
CL
CL
CL
2
Q1
10
RESET2
13
Q2
8
SET2
9
DATA2
7
V
SS
14
VDD
11
CLOCK2
12
Q2
CL
CL
CL
CL
CL
CL
1
2
3
4
11
12
13
14
5
6
7
8
9
10
Vss
SET2
CK2
VDD
Q2
INPUTS
OUTPUTS
*
: Don't care
: Level change
˙ : No change
RESET
L
H
H
L
L
L
Q2
DATA2
RESET2
SET1
RESET1
CK1
Q1
Q1
DATA1
SET
H
L
H
L
L
L
DATA
*
*
*
L
H
*
CK
*
*
*
Qn + 1
H
L
H
L
H
Qn˙
Qn + 1
L
H
H
H
L
Qn˙
IC510
:
NJM78M12FA
Voltage regulator
INPUT
OUTPUT
COMMON
POINT
A-2 1 / D521, 2 / Q504
1
D521 (C)
Power cable ON
Power cable OFF
Q504 (C) 2
Power cable ON
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
µ
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
IC505
: FA5511N-D1-TE1
CMOS IC for switching power supply control
INPUT (1)
Primary side ground
Primary side ground
AC IN
注意！
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記箇所には電源をOFFにした後も電荷が残り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5 kΩ/10 W）を下記箇所の端子間に接続して放電してください。放電所用時間は約30秒間です。
1. INPUT
（
1
）
P.C.B.
のC502
2. INPUT
（
1
）
P.C.B.
のC523
CAUTION !
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. C502 on INPUT (1) P.C.B..
2. C523 on INPUT (1) P.C.B.
.
5 k-ohms
10 W
5 k-ohms
10 W
w
w
w
.
x
i a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
9
4
2
9
8
T
E
L
1
3
9
4
2
2
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
