Schematic Diagram - Yamaha VS-10 Service Manual

A B
SCHEMATIC DIAGRAM ( 1/2 MAIN )
page E-45/J-43 C page E-43/J-41 A page E-44/J-42
4 1
H
DIGITAL (3)
1
2 MAIN (2) DIGITAL (1)
5.1
0 0 0 0 0 0
2
0 0 0 0 0
4.4 4.2
5.0
4.4
0
5.0
0
0
0
0
0
0 0 0
11.6
0
0
0
0
-11.6
0 0
0
0
3
5.0 5.0
0 4.7
0
0
0 0
-5.0
-5.0
11.7 11.7
0
0
4
-12.0 0 0 0
DIGITAL (2)
A
6
5
page E-45/J-43
6
DIGITAL (2)
F
7
page E-45/J-43
7
8
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
DTC144EKA 2SD2396 2SA1674 2SC1740 2SC4208A
2SD1938F 2SB1565 DTC114ES 2SC2878
C
E
B E
B C B
B C E
C C B
9
E
E
C D E
page E-44/J-42
K
DIGITAL (1)
4
CENTER L
REAR L
0
0
0 24.1
0
0
0 0
0
SW L
0 0
0 1.4
0
0
0
0
-0.1
0
24.1
MAIN L 0
0
-0.1
0
0
-23.6
0
0
0 0
0
0
0
0 0 0
0
-23.6
0
0 0 0
0
-0.1
0
0
0
0
0 0
-10.9 10.6
0
4.5
0
9.9 4.7
4.8
4.8 5.6
9.7
0.6
0
5.2 9.7
9.7
5.7
5.7
4.8 4.7
0
-24.0
5.6
0
0
0
1SR139-400 MA8051-L S1NB20 D2SBA20 HD74HC153FPEL
1SS355 TC4052BF
Anode Anode
~
MA8100-H
~
+ –
MA8270-L
MA8056-M
–
MA8240-M
~ 16
MA8051-M ~
Cathode +
Cathode
1
F G
0 0
0
0
0
0 0 0 0 0 0 0 0 0 0 0 0 0
-12.0 0.7
0
0
0 0
11.7
0.7
0 0
0 0 0 0 0 0 0 0 0 0
0
11.7
0
0
0
-11.6
11.6
0
0
0
0.7
0 0
0 0
23.1
24.0
24.0
0
24.0
0
-23.2
0.4
24.2
0.1
0.1
30.0
11.7 20.6 24.2
4.0
0
24.7
24.7
0
-24.0 10.5
0 0
24.9
0
0 0
0
0
-24.0
-26.1 -24.7
-23.7
0
-24.3
-12.0 -21.6
-30.7
-24.7
-25.5 -30.6
uPC4570G2 LC78212 TC9482N NJM78M05FA
M5220FP NJM2192AM NJM78M12FA
BA15218F
15
14
8
8 4
30 28
1
1 1
H I
0 0 0
11.7
11.6
11.6
0 0
0
0
0.7 0
0
0
0.7 0
0
0
0 0
-11.6
0
0.1
0.1
-11.6
0
0
0
11.6
0
0
0
0
0
0
-11.6
-11.6
0
0
0
0
0.7
0
0.7
0
0
4.8
page E-43/J-41
C
4
MAIN (4)
0
30.0
0
-30.7
NJM79M12FA LM1875T LA7956
9
3: IN 3: OUT 1
1: COM
1: OUT
1
2: COM 2: IN 5
J K L
VS-10
IC302 : HD74HC153FPEL
Dual 4-to-line Data Selectors
/ Multiplexers
1G 1
1C0 6
1C1 5
7 1Y
1C2
4
1C3 3
B
2
A
14
2C0 10
2C1
11
9 2Y
2C2 12
2C3 13
2G 15
IC304, 308, 312~315 : uPC4570G2
IC305, 306 : M5220FP
IC311 : BA15218F
MAIN L
Dual OP-Amp
page E-43/J-41
OUT 1 +V
1 8 CC
A
3
–IN 2 OUT
MAIN (4) 1 7 2
+ – + –
3
+IN 1 6 –IN 2
4
–V CC 5 +IN 2
IC303 : TC4052BF
Analog Multiplexers / Demultiplexers
VDD
16
13 X-COMMON
12 0X
I/O c O/I
I/O c O/I 14 1X
A 10
15 2X
I/O c O/I
CENTER L
I/O c O/I 11 3X
9
B
1 0Y
I/O c O/I
I/O c O/I 5 1Y
INH 6
2
I/O c O/I 2Y
I/O c O/I 4 3Y
3
REAR L Y-COMMON
8 7
VSS VEE
IC307 : LC78212
Analog Function Switch
1 30
L1 R1
2 29
L2 R2
L3 3 28 R3
LCOM1 4 27 RCOM1
L4 5 26 R4
6 25
L5 R5
7 24
L6 R6
LCOM2 8 23 RCOM2
9 22
L7 R7
SW L
L8 10 21 R8
11 20
LCOM3 RCOM3
19
V DD LEVEL SHIFTER
V 16
SS 14
LATCH ZZ D1
V 12
EE
15 CL
RES 18 ZZ
SHIFT REGISTER
17 13
S ZZ CE
IC309 : TC9482N
Digital Volume
2 1 28 27
L–OUT A 3
26 R–OUT A
L–IN A 4
1dB VR
LATCH
25 R–IN A
8dB VR
R–A–GND A
LATCH 24
L–A–GND A
5
L–OUT B 6 23 R–OUT B
L–IN B 7
1dB VR 3 TO 7 22 R–IN B
LATCH DECODER
R–A–GND B
21
8dB VR 4 TO 13
LATCH DECODER
L–A–GND B
8 20 R–OUT C
L–OUT C
9
R–IN C
19
L–IN C 10
1dB VR
R–A–GND C
LATCH 18
8dB VR
LATCH
L–A–GND C 11
MAIN (1)
SHIFT REGISTER STROBE
CS1 12
(32BIT) GENERATOR
GND CS2
13 LEVEL SHIFT 17
CK STB
14 16
DATA
15
IC318 : NJM78M05FA
MAIN (5)
IC319, 320 : NJM78M12FA
Voltage Regulator
V IN
V OUT
GND
IC332 : NJM2192AM
Voltage Regulator
COMMON
OUTPUT
MAIN (3)
INPUT
E-42/J-40