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A
B
C
POWER 2/2
1
5.9
5.9
CB801
2
Page 85
J2
11.7
to INPUT_CB7
5.2
CB802
0
0
3
0
0
4
5
11.3
6.5
IC851
6.3
5.5
6.0
IC852
0
5.9
11.2
0
6
7
-26.0
-22.0
-20.1
-27.9
8
-29.9
-27.9
-20.0
-21.9
-27.9
-25.9
-25.9
3.3
3.3
-21.8
-27.8
-30.4
-30.3
-30.1
-30.1
-30.1
-30.3
9
10
POWER (2)
D
E
F
POWER (4)
5.9
IC801
5.8
0
JK802
5.9
IC801
5.8
11.7
JK801
5.1
IC802
5.2
5.1
5.1
0
IC802
5.1
5.1
0
11.7
CB852
11.5
11.5
11.5
7.0
11.3
11.5
11.5
11.1
11.5
6.3
9.6
9.6
9.3
10.5
10.4
11.3
5.8
6.0
5.8
10.5
IC852
5.9
0
0
3.3
3.3
3.3
-20.2
-29.8
-20.1
-29.7
-23.7
-30.0
-23.7
-20.0
DRIVER
-22.0
-27.8
-27.8
-29.8
IC901
-20.2
3.3
3.3
3.3
1.6
1.6
-22.0
0
-30.0
-21.9
-29.8
0
3.3
3.3
3.3
-30.4
G
H
W951
POWER (7)
W891
JK891
W952
POWER (6)
-32.1
-26.2
-24.0
11.6
5.4
5.5
5.5
5.4
0.2
5.4
0
0
3.3
3.3
3.3
IC902
3.3
0
I
J
K
CB951
IC951
POWER (5)
(B model)
CB902
VOLUME+
INPUT
VOLUME–
CB903
W991
STANDBY/ON
POWER (3)
# 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.
L
M
N
YSP-4000/YSP-40D/HTY-7040
IC801, 802: NJM2068MD-TE2
Dual operational amplifier
OUT
1
8
+V
1
CC
–IN
2
7
OUT
2
1
+ –
+ –
3
6
+IN
1
-IN
2
4
5
+IN
–V
CC
2
IC851: NJM2716F
Single supply high-slew rate single operational amplifier
1
5
1.
OUTPUT
2
2.
GND
3.
+INPUT
3
4
4.
-INPUT
5.
V
+
IC852: NJM2717M
Single supply single high-slew rate operational amplifier
1
8
1. A OUTPUT
2. A -INPUT
2
7
3. A +INPUT
4. GND
5. B +INPUT
3
6
6. B -INPUT
7. B OUTPUT
4
5
8. V
+
IC902: TC7SH08F
2-input AND gate
IN B
1
5
V
CC
A
B
Y
L
L
L
IN A
2
L
H
L
H
L
L
GND
3
4
OUT Y
H
H
H
IC901: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
CGROM
RAM
(35-bit x 166)
44
SEG00
(8-bit x 60)
Segment
19
SEG25
Code
write
output
17
SEG26
circuit
CGROM
CS
2
Serial
dot data
9
SEG34
data
write
(35-bit x 16)
SCK
3
receive
Code/
SDATA
circuit
4
command
45
SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
Segment/
code
DIG13/
50
select
Digit
SEG40
select/
DIG14/
49
XIN
7
SEG39
Clock
timing
Display
output
generator
clock
controller
scan pulse
circuit
DIG15/
XOUT
6
48
SEG38
DIG16/
47
SEG37
DIG17/
46
SEG36
63
DIG00
Digit
RESET
1
output
circuit
Vcc1
8
53
DIG10
Vcc2
18
Vss
5
Vp
64
IC951: PQ012GN01ZPH
Low power loss regulator
DC input
DC output
1
3
(Vin)
(Vo)
IC
Bias power supply
2
(VB)
5
GND
91
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