# All voltages are measured with a 10MΩ/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.
78
D
E
F
(111.6)
(333.7)
(113.9)
IC511
(15.2)
(4.0)
(4.0)
(0.7)
(5.1)
(15.2)
(0.7)
(4.0)
IC504
5.0
(0)
(1.3)
(0)
4.0
Primary side ground
10.2
(143.5)
(78.5)
(143.5)
(3.5)
3.3
(78.5)
(0)
(0)
(7.6)
(7.6)
(3.5)
(0.8)
3.3
3.3
(3.8)
3.3
IC503
(0.8)
0.1
(0)
(0)
(7.6)
0.1
(3.9)
(0)
(4.0)
(0)
(0)
0
0
(0)
0
(0)
(0)
(4.0)
4.1
4.1
(0)
0.2
0
IC501
3.9
Primary side ground
0.2
1.0
1.0
0.8
0
0
0.1
0.2
0.1
5 k-ohms
10 W
G
H
5 k-ohms
10 W
0
AC5.5
AC1.1
5.2
(332.5)
0
(476.4)
(33.2)
(33.2)
AC1.0
(1.0)
AC3.0
(0.1)
0
(1.0)
15.3
(1.3)
5.0
4.0
0
4.0
0
10.4
(15.2)
(-0.1)
(15.2)
0
(0)
2
1
A-2
0
-26.3
3.3
10.2
4.0
3.3
0
IC506
0
3.3
0
4.0
10.2
4.0
0
0
INPUT (1)
IC505: FA5511N-D1-TE1
IC502: TC4013BP
CMOS IC for switching power supply control
Dual D-type flip flop
4
RESET1
SET1
6
1
Q1
REF
(7)
5
DATA1
2
Q1
5V VCC
CL
CL
ENB
CL
CL
5V REF
CLOCK1
3
CL
CL
Q1
1
VDD
14
RESET2
10
3.5V
8
Q1
2
13
Q2
FB
SET2
13
Q2
(2)
CK1
3
12
Q2
DATA2
9
12
Q2
CL
CL
RESET1
4
11
Dmax
CK2
FA5510: 46%
CL
CL
FA5511: 70%
DATA1
5
10
RESET2
CLOCK2
11
CL
CL
SET1
6
9
DATA2
V
7
SS
Vss
7
8
SET2
VDD
14
INPUTS
OUTPUTS
RESET
SET
DATA
CK
Qn + 1
Qn + 1
L
H
*
*
H
L
H
L
*
*
L
H
H
H
*
*
H
H
L
L
L
L
H
* : Don't care
L
L
H
H
L
: Level change
L
L
*
Qn˙
Qn˙
˙ : No change
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