Yamaha NS-BP300, Руководство по обслуживанию

Страница: 69 / 84

★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
69
MAIN 4/4
R-840/NS-BP300
IC1
W51
IC2
IC3
W1
IC4
CB1
CB5
CB3 CB4
CB506
IC501
CB2
CB53 CB52
IC51
CB51
4.9
4.9
0
0
0
0 0
0
0 0
0
10.1
10.1
4.7
5.1 5.1 5.1
0
AC8.1
AC6.9
0
0
0
0
0
0
0.2
5.0
0
4.9
0
10.1 10.1
10.1
3.9
4.2
1.0 1.0
1.0
7.6
0
0
0
0
0
~
4.0
3.8
4.0
~
0.2
4.1
4.1
~
0
0
7.6
7.6
0
0
0
0
~
~
0
0
~
1.0
0
0.6
0.8
14.2
14.2
4.6
1.0
0.8
0.6
5.0
0
2.5 2.5
2.5 2.5
0
4.6
0
0
0
4.6
4.6
14.2
2.5
2.5
2.5
2.5
5.0
0.8
4.9
5.1
4.9
5.1
0
0
0 0 0
0
0
0
0
0
0
0
0
0
IC4 : 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˙
IC51 : LB1641
Motor driver
INPUT LOGIC
IN 1
IN 2
VZ
P1 P2 OUT 1 OUT 2 V
CC 2
V
CC 1
GND
PRE DRIVER
1
3 2 8 10 9 7
4
6
5
IC1 : NJM2388F05
Low dropout voltage regulator with ON/OFF control
ON/OFF
control
Over Voltage
Protection
Bandgap
Reference
V
IN
Cont
GND
V
OUT
Over Current
Protection Thermal
Protection
IC501 : LM61CIZ
Temperature sensor
MAIN (4)
MAIN (5)
MAIN (8)
MOTOR DRIVER
AC IN
VOLUME
REGULATOR
1
3
2
to MAIN (6)_W851
Page 68 K7
to FUNCTION (1)_CB109
Page 65 B6
to MAIN (1)_W502
Page 66 D2
to MAIN (3)_W801
Page 68 D9
to FUNCTION (1)_W301
Page 63 K8
to FUNCTION (1)_CB103
Page 65 G2
To POWER TRANSFORMER