Yamaha A-S2000 Service Manual - Page 64

Front - what motor does have

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A B C D E F G H I J K L M N A-S2000 1 FRONT 1/3 POINT A-1 XL501 (Pin 23 of IC502) POINT A-2 A-3 1 / Pin 1, 2 / Pin 3 of CB501 CB501 +5M 1 1 2 CB501 /RES 2 2 Writing port POWER ON POWER OFF POWER ON CB515 0.1 4.6 0 FRONT (9) POWER indicator CB507 W5004 1.9 0.1 W5006 CB509 INPUT indicator CD TUNER LINE 1 LINE 2 CD BAL PHONO MAIN DIRECT AUDIO MUTE 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 3.2 5.0 5.0 5.0 5.0 5.0 5.0 5.0 FRONT (4) 12.1 12.1 0.6 0.8 0 0 0.4 IC503 0 0.8 3 FRONT (6) 0 1 4 A-2 A-3 CB501 2 Page 62 C5 to FUNCTION (3)_W1 5 6 0.2 4.3 2.1 2.5 2.6 0 0 0 IC501 5.1 1.3 1.3 2.5 2.6 2.5 2.5 2.5 12.1 5.0 5.6 5.6 0 IC505 8.7 5.8 0 5.8 5.8 5.1 5.8 5.0 1.0 0.5 0.3 5.1 1.3 0 5.0 5.0 0 0 0 0 0 0 0 0 5.0 0.7 1.0 0.7 0.7 MICRO 0.7 0 5.0 PROCESSOR 1.4 IC502 0 0 0 0.2 0 0 A-1 5.0 0 4.9 0 0 0 0 0 0 2.1 1.6 4.8 2.5 2.5 2.5 0.2 5.0 4.1 0 0 0 5.1 0 4.9 0 0 2.1 2.4 0 5.0 5.0 0 0 0 5.0 5.0 0 00 00 5.1 5.1 4.4 4.3 3.6 IC504 5.1 4.1 4.8 1.2 5.1 5.0 0 5.0 5.1 5.0 5.1 0 0.1 4.6 5.1 5.1 5.1 5.1 4.1 5.1 5.1 5.1 0 0 FRONT (3) W5003A W5003B VOLUME W5005A W5005B FRONT (5) CB512 W5008 W5009A INPUT SELECTOR W5009B AUDIO MUTE FRONT (7) W5007A W5007B TREBLE BASS BALANCE +/- +/- L/R PHONO MM/MC FRONT (8) 0 5.0 0 CB517 Page 61 J6 to FUNCTION (2)_W4004 IC501 TC74HC4051AFEL 8-channel analog multiplexer/demultiplexer COM OUTC IN 0 Logic Level Converter A 1 41 2 62 B 3 COM 3 74 4 55 C 5 INH 6 6 VEE 7 INH OUTC IN 7 GND 8 P1 OUT 1 VCC 2 OUT 2 P2 VCC 1 IC503: LB1641 Motor driver 3 2 8 10 97 16 Vcc 15 2 14 1 13 0 12 3 11 A 10 B 9C 4 VZ PRE DRIVER 12.0 11.9 0 -11.8 0 0 0 0 12.0 11.9 12.0 12.0 11.9 0 0 5.0 11.8 5.0 0 0 CB519 IN 1 5 GND 1 INPUT LOGIC 6 IN 2 7 FRONT (2) CB503 W5002 SPEAKERS OFF A 8 B A+B TRIM -6 0 +6 +12 CB524 CB525 JK501 -11.8 9 -11.8 JK501 CB504 0 5.0 0 12.0 12.0 11.9 11.9 12.0 0 -11.8 0 0 0 12.0 -11.9 0 12.0 12.0 11.9 0 -11.9 0 11.9 0 -11.9 0 12.0 12.0 11.9 0 -11.9 0 11.9 0 -11.9 12.1 5.3 5.7 5.7 5.0 5.3 5.3 5.0 -11.8 5.3 5.0 -11.8 5.3 5.0 -11.8 Page 60 K8 to FUNCTION (1)_W3004 IC504: LC709004A-TLM-E I/O-expander for microcontroller DIN 2 CLK# 3 CS# 4 RES# 21 Serial/parallel converter/shift register I/O control/output register 14 DOUT 15 VDD 19 VSS IC505: RH5RE58AA-T1-FA Voltage regulator VIN 2 VOUT 3 Control logic P00 P07 P10 P17 CB521 Page 63 K6 to MAIN (2)_W203 port 0 I/O buffer port 1 I/O buffer 24 17 15 8 + - Vref 1 GND FRONT (1) IC502: M38039xxxxx Single chip 8-bit microprocessor Main clock input XIN 30 Main clock output XOUT 31 Sub-clock Sub-clock input output XCIN XCOUT 28 29 Clock generating circuit RAM ROM VSS VCC 32 1 Data bus MICROPROCESSOR A X Y S PCH PCL PS Reset input RESET 27 CNVSS 26 Timer 1 (8) Prescaler 12 (8) Timer 2 (8) CNTR0 CNTR1 CNTR2 Prescaler X (8) Prescaler Y (8) Timer X (8) Timer Y (8) Timer Z (16) PHONES 0 5.1 5.0 Page 63 K8 to MAIN (2)_W204 10 # 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. 64 A/D converter (10) PWM (8) SI/O2 (8) SI/O1 (8) D/A D/A converter converter 2 (8) 1 (8) SI/O3 (8) P6 (8) INT3 P5 (8) P4 (8) INT00 INT1 INT2 INT40 P3 (8) P2 (8) P1 (8) INT01 INT41 P0 (8) 23 VREF AVSS 4 5 6 7 8 9 10 11 I/O port P6 12 13 14 15 16 17 18 19 I/O port P5 20 21 22 23 24 25 28 29 I/O port P4 57 58 59 60 61 62 63 64 I/O port P3 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 I/O port P2 (LED drive) I/O port P1 49 50 51 52 53 54 55 56 I/O port P0

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CB501
IC505
IC501
CB515
IC502
JK501
JK501
CB503
CB524
CB525
CB504
W5002
IC504
CB517
CB519
CB521
CB507
CB509
W5004
W5006
W5003A
W5005A
W5005B
W5009A
W5009B
W5007A
W5007B
W5003B
CB512
W5008
IC503
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
A-S2000
64
★
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.
FRONT 1/3
0
0.7
5.1
0.2
4.3
2.1
0
0
0
12.1
5.6
5.8
5.1
5.1
4.4
4.3
3.6
5.1
8.7
5.8
5.8
5.0
5.8
0
0
5.6
2.5
2.6
1.3
1.3
2.5
2.6
2.5
2.5
2.5
5.0
-11.8
-11.8
5.0
5.1
0
5.0
-11.8
0
0
0
0
0
11.9
0
0
12.0
12.0
0
0
11.9
0
0
0
11.9
0
0
0
11.9
11.9
11.9
12.0
12.0
12.0
12.0
-11.9
-11.9
-11.9
0
0
11.9
12.0
-11.9
0
0
11.9
12.0
-11.9
12.0
-11.8
12.0
0
0
5.0
0
0
5.0
12.0
0
11.9
0
11.8
12.0
5.0
5.3
5.3
5.3
-11.8
12.1
5.7
5.7
5.0
5.0
5.3
-11.8
5.0
5.3
-11.8
5.0
0.1
4.6
5.1
5.1
5.1
5.1
5.1
0
0
5.1
4.1
5.1
5.1
4.1
4.8
1.2
5.1
5.1
5.0
0
5.1
5.0
0
5.0
4.6
1.9
0.1
5.0
3.2
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0
0.8
0.4
0
0
12.1
12.1
0.8
0.6
0
0.1
0
0
0
0
0
0.7
0.7
0.7
0
5.0
1.4
0
0
0
0.2
0
0
5.0
0
4.9
5.1
1.0
5.1
1.3
0
0
5.0
5.0
5.0
0
0
0
0
0
0
0
0
0
0
0
0
2.1
1.6
4.8
2.5
2.5
2.5
0.2
5.0
4.1
0
0
0
0.5
0.3
4.9
0
0
2.1
2.4
0
5.0
5.0
0
0
0
0
5.0
5.0
0
1.0
A-2
1
A-3
2
A-1
MICRO
PROCESSOR
FRONT (1)
FRONT (8)
FRONT (7)
FRONT (5)
FRONT (4)
FRONT (6)
FRONT (3)
FRONT (9)
FRONT (2)
4
1
6
2
COM
3
7
4
5
5
INH
6
V
EE
7
GND
8
Vcc
16
2
15
1
14
0
13
3
12
A
11
B
10
C
9
IC501
TC74HC4051AFEL
8-channel analog multiplexer/demultiplexer
Logic
Level
Converter
OUT
C
IN
OUT
C
IN
A
B
C
INH
COM
0
1
2
3
4
5
6
7
IC503
: LB1641
Motor driver
INPUT LOGIC
IN 1
IN 2
VZ
P1
P2
OUT 1
OUT 2
VCC 2
VCC 1
GND
PRE DRIVER
1
3
2
8
10
9
7
4
6
5
IC504
: LC709004A-TLM-E
I/O-expander for microcontroller
Control logic
port 0 I/O buffer
Serial/parallel converter/shift register
I/O control/output register
DIN
VDD
DOUT
VSS
CLK#
CS#
RES#
P00
P07
2
14
15
19
3
4
21
24
17
port 1 I/O buffer
P10
P17
15
8
2
1
3
V
OUT
GND
V
IN
–
+
IC505
: RH5RE58AA-T1-FA
Voltage regulator
Vref
POINT
A-1
XL501 (Pin 23 of IC502)
POINT
A-2
A-3
1 / Pin 1,
2 / Pin 3 of CB501
1
CB501 +5M
POWER ON
POWER OFF
CB501 /RES
2
1
2
POWER ON
IC502
: M38039xxxxx
Single chip 8-bit microprocessor
P6 (8)
A/D
converter
(10)
PWM
(8)
I/O port P6
5
6
7
8
9
10
11
4
3
2
P0 (8)
I/O port P0
50
51
52
53
54
55
56
49
P2 (8)
I/O port P2
(LED drive)
34
35
36
37
38
39
40
33
P5 (8)
INT
3
V
REF
X
IN
Main
clock
input
Main
clock
output
Sub-clock
input
Sub-clock
output
AV
SS
INT
00
INT
01
INT
41
INT
1
INT
2
INT
40
P3 (8)
I/O port P5
I/O port P3
13
14
15
16
17
18
19
57 58 59 60 61 62 63 64
12
P4 (8)
I/O port P4
21
22
23
24
25
28
29
20
SI/O2
(8)
ROM
A
MICROPROCESSOR
RAM
Clock generating circuit
SI/O1
(8)
D/A
converter
2 (8)
D/A
converter
1 (8)
SI/O3
(8)
P1 (8)
I/O port P1
42
43
44
45
46
47
48
41
X
Y
S
PC
L
PC
H
PS
Timer Y (8)
Prescaler Y (8)
Timer Z (16)
Prescaler X (8)
Prescaler 12 (8)
Timer X (8)
Timer 2 (8)
Timer 1 (8)
30
27
26
X
CIN
28
X
OUT
31
X
COUT
29
V
SS
Data bus
32
V
CC
CNV
SS
CNTR
0
CNTR
1
CNTR
2
RESET
Reset input
1
to FUNCTION (1)_W3004
Page 60
K8
to MAIN (2)_W203
Page 63
K6
to MAIN (2)_W204
Page 63
SPEAKERS
PHONES
OFF
A
B
A+B
TRIM
-6
0
+6
+12
K8
to FUNCTION (2)_W4004
Writing port
Page 61
J6
to FUNCTION (3)_W1
Page 62
C5
POWER
indicator
INPUT indicator
CD
TREBLE
+/-
BASS
+/-
BALANCE
L/R
TUNER
LINE 1
LINE 2
CD BAL
VOLUME
INPUT
SELECTOR
PHONO MM/MC
AUDIO MUTE
PHONO
MAIN
DIRECT
AUDIO
MUTE