Page 1
ABCDEFGH I J
1
■ BLOCK DIAGRAM
A-S1000
FRONT
• See page 59-61 →
SCHEMATIC DIAGRAM
2
RY101
PHONO
L/R
RY_MMMC
CD L/R
3
TUNER L/R
LINE1 L/R
LINE2 PB L/R
LINE2 REC OUT L/R
Q1001-1016
HEAD AMP
MM/MC
MC
RY102
Q1017-1038
EQ AMP
IC301
RY_PHONO
POL/POR
RY103
RY_CD
RY_TU
RY_L1
RY_L2
INPUT
SELECTOR
INPUT BUFFER
VOLUME & TONE CONTROL
IC410
ATT.1
IC411
ATT.2
IC412
ATT.3
IC404
IC405
IC406
FUNCTION
TONE CONT ROL DEVICES
RY_BYP
RY402
FLAT
LINE AMP.
IC413
• See page 55-57 →
SCHEMATIC DIAGRAM
HOT(+)
COLD(-)
RY_DIR
RY404
MAIN DIRECT
RY403
FLOATING BALANCED
POWER AMPLIFIER
SPEAKER DRIVER
HOT (POSITIVE PHASE) SIDE
SPEAKER DRIVER
COLD (NEGATIVE PHASE) SIDE
FRONT
SPCH A L/R CH
RY201/R111
SPCH B L/R CH
RY202/R112
RY_SPA
RY_SPB
BUFFER AMP.
4
PRE OUT
MAIN IN
IC302
IC303
PRD PRI THM
IC414
RY501
• See page 59-61 →
SCHEMATIC DIAGRAM
SPEAKERS L/R CH
to POWER AMP.
R CH
PHONES
+
A
-
+
B
-
PRD
THM
RY_DIR
RY_BYP
RY_UNBAL
5
RY_PHONO
LED_PWR
54
34
32RY_BAL
26RY_CD
27RY_TU
28RY_L1
29RY_L2
55RY_MMMC
56
25
REM
53 2,3
39
SP_AB
6
HP_PRD48PSVA147PSVA2
1,64
62,63
IC502
MICRO
PROCESSOR
46
IC501
15
5I_BAS
4
I_TRE
2I_SEL
12
I_LRBAL
BALANCE UNBALANCE
60 PRV1 PRV
17
16 RY_PWR
35
RY_HP
4
RY_SPA
5
RY_SPB
41-43A/B/C
9-113,4
1I_VOL
36,37MVOL+/-
+20V/-20V
+25V/-25V
For EQ AMP
For MC AMP
INDEPENDENT REGULATED POWER SUPPLY
(for AUDIO)
PDET
+25V/-25V
For LINE AMP1
For LINE AMP2
SUB-TRANSFORMER
T1
+25V/-25V
For VOLUME1
+12/-12V
+33V
-33V
+12V/-12V
For VOLUME2
(for POWER AMP
/ VOLTAGE AMP STAGE)
PRV
D305
PRV
D304
CONVERTER
POWER TRANSFORMER
LOW IMPEDANCE DRIVE
HEADPHONE AMP.
FLOATING POWER SUPPLY
POWER SWITCH
for MICROPROCESSOR
RY1
HP END
INDEPENDENT
D335
D336
D300
AC IN
SPEAKER
TREBLE
BALANCEBASS
REMOTE
7
FRONT
• See page 59-61 →
SCHEMATIC DIAGRAM
FRONT PANEL
INPUT SEL
VOLUME
VR501
FUNCTION
• See page 55-57 →
SCHEMATIC DIAGRAM
PRV
D301
D306
RY_HP
L CH
for HOT
L CH
for COLD
R CH
for HOT
R CH
for COLD
IC51
IC52
+B3/-B3
+B4/-B4
+B1/-B1
+B2/-B2
PSVA1
PSVA2
+12V
to SPEAKERS RELAY
-12V
JK501
MAIN
• See page 58 →
SCHEMATIC DIAGRAM
FUNCTION
• See page 55-57 →
SCHEMATIC DIAGRAM
35
Page 2
A
BCDEFGH I JK
L MN
SCHEMATIC DIAGRAMS
A-S1000
FUNCTION 1/3
1
W3006
Page 61
2
CB302
to FRONT (12)_CB59
Page 57
25.0
s310
s310
25.5
0
25.5
0.6
0.6
W3003
W3007
-0.8
25.5
1.0
0.4
-0.2
-25.3
24.4
3
Page 60
to FRONT (10)_W1002
M5
CB301
5.9
CD L
5.9
0
s311
11.9
-12.1
25.4
6.5
5.9
5.9
0
0.5
0.5
4
24.4
-24.2
-2.42
-25.3
0
0
-24.7
1.0
1.0
-0.8
-24.3
1.0
0.2
-0.8
W3001
to FUNCTION (3)_W3
Page 56
to FUNCTION (2)_CB403
Page 56 B7
to FUNCTION (2)_CB408
H2
H8
M5
-12.1
-12.1
INPUT
24.3
0
-25.5
-0.5
-25.5
-0.5
Page 56
B7
to FUNCTION (2)_CB402
5
-12.1
s310
s310
W3002
W3005
Page 56
B5
to FUNCTION (2)_CB401
-0.7
25.4
1.0
0.4
-0.2
-25.3
-12.1
24.3
6.0
6.0
0
s311
6
-12.1
-12.1
25.4
6.5
6.0
6.0
0
0.5
0.5
0.5
24.3
-24.2
-24.2
0
0
-24.7
1.0
1.0
-0.7
-24.3
1.0
0.4
0.2
-25.3
Page 56
to FUNCTION (2)_CB407
LINE 2
0
-12.0
7
0
0
-12.0
0
8
12.5
0
IC301
0
0
IC301
-12.4
0
0
0
0
0
0
0
0
0
12.5
IC302
IC302
-12.4
12.5
IC303
0
11.9
0
-11.9
0
IC304
0
0
0
12.6
W3004
Page 59
to FRONT (1)_CB519
0
0
-12.0
0
0
0
0
-12.0
-12.0
0
0
-12.0
9
0
0
IC303
-12.4
0
0
IC304
-11.8
0
0
CB305
-12.4
Page 60 M7
to FRONT (10)_W1003
B6
K7
-INPUT
+INPUT
IC301-303: NJM2082M-TE1
Dual J-FET input operational amplifier
A OUTPUT
A-INPUT
A+INPUT
V-
8
V+
2,6
3,5
4
V-
A
2
+
–
3
4
IC304: NJM2068MD-TE2
Dual operational amplifier
OUT1
1
–IN1
2
+–+
3
+IN1
4
–VCC
V+1
8
B OUTPUT
7
B
B-INPUT
6
+
–
B+INPUT
5
1,7
OUTPUT
+VCC
8
OUT2
7
–
6
-IN2
5
+IN2
10
FUNCTION (1)
★ 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.
55
Page 3
A-S1000
A
BCDEFGH I JK
L MN
1
2
3
4
5
6
FUNCTION 2/3
K6
Page 55
to FUNCTION (1)_W3002
Page 55 K6
to FUNCTION (1)_W3005
CB401
CB407
IN L
s400
0
0
00000
12.5
12.5
0
0
0
0
0
0
0
0
0
0
0
0
-12.4
0
000
00000
12.5
12.5
12.5
0
12.5
0
0
0
0
0
0
0
0
0
-12.4
0
000
00000
12.5
12.5
0
12.5
0
12.5
0
0
0
0
0
0
0
0
-12.4
0
000
0
IC410
0
0
0
0
IC412 IC411
0
0
000
0
0
0
0
s401s401
0
0
0
0
0
0
0
0
0
0
0
s400
s400
0
0
0
0
0
0
0
0
0
0
0
s400
s400
0
0
12.5
0
IC404
0
-12.4
0
s403
0
0
IC404
0
s403
12.3
12.5
12.5
0
0
-12.3
12.5
0
IC405
0
0
-12.4
0
0
s402
s404
0
12.4
5.9
0
0.5
25.6
24.6
6.5
5.9
5.9
5.9
5.9
6.5
0
0.5
0.5
25.6 24.6
5.9
6.5
5.9
0
0.5
0.5
5.9
5.9
s403
0
0
IC405
0
s403
0
-12.2
-12.3
0
0
0
12.4
0
-12.1
12.5
-12.1
OUT L
s404
5.9
0
0.5
25.7
24.6
6.5
5.9
5.9
5.9
5.9
5.9
6.5
0
25.8
0.5
0.5
6.5
5.9
5.9
5.9
0
5.9
0.5
0.5
s401s401
0
0
0
0
0
0
0
0
0
0
0
12.5
0
IC406
0
0
-12.4
s403
0
0
IC406
0
s403
s402
s400
1.0 1.1
0
0
0
0.5
1.0
0
24.7
0
0
0.5
25.1
24.6
1.0
1.0
0.4
-0.1
-0.7
-24.6
-0.7
-25.2
-25.3
-25.7
24.7
1.0
1.0
0.4
-0.7
-0.7
-24.8
-0.7
-25.3
-25.8
25.2
24.6
1.1
25.6
1.0
0
0.5
-0.1
0
-0.7
-0.7
-25.2
25.3
24.7
1.1
1.1
1.1
0
0.5
0
-0.1
-0.7
-0.7
-25.3
-25.4
1.0
0.4
-0.2
-0.7
-25.7
25.7
1.0
0.4
-0.2
-0.7
-25.8
25.6
1.1
-0.1
-0.7
-25.7
25.7
1.1
-0.1
-0.7
-25.8
s401
0.5
11.0
11.7
11.0
0
IC414
0
0
s401
CB405
W4005
A3
Page 58
to MAIN (1)_W102
C9
-12.1
-12.1
-12.1
-12.1
-11.6
0
IC414
0
0
-10.9
10.9
CB406
Page 59
to FRONT (2)_CB504
A8
0.5
Page 58
to MAIN (2)_W202
CB403
K3
s401 s401
Page 55
to FUNCTION (1)_W3003
CB404
25.6
-12.5
12.6
12.6
0.6
0
0
-0.5
-12.5
-25.7
25.6
0.6
0
Page 61 G4
0
-0.5
-25.7
to FRONT (11)_W6
CB408
Page 55 K4
CB402
to FUNCTION (1)_W3007
7
K4
Page 55
to FUNCTION (1)_W3001
-12.5
12.6
12.6
0.6
0
0
-0.5
-12.5
W4004
K6
Page 59
to FRONT (1)_CB517
8
FUNCTION (2)
9
10
56
★ 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.
IC404-406: NE5532DR
Dual low-noise operational amplifiers
1OUT
1IN–
1IN+
V
CC–
V
1
8
CC+
2OUT
2
7
2IN–
3
6
2IN+
4
5
36 pF
IN+
IN
460 Ω
37 pF
14 pF
IC404-406: LME49723MA
Dual high fidelity audio operational amplifier
V
CC+
+
OUTPUT A
1
15 Ω
7 pF
15 Ω
OUT
V
CC–
INVERTING INPUT A
NON-INVERTING
INPUT A
2
A
B
++--
3
-
4
V
V
8
OUTPUT B
7
INVERTING INPUT B
6
NON-INVERTING
5
INPUT B
IC410-412: TC94A81UG
Electronic volume control
L-MVR-AGND1
L-MVR-IN
L-ZX-AGND
L-ZX-IN
L-SW-OUT
L-SW-IN4
L-SW-IN3
L-SW-IN2
L-SW-IN1
TEST
VDD
L-MVR-AGND2
33132 31 30 29 28
34
35
36
37
38
39
40
41
42
43
45
Zero crossing
2
SS1
L-MVR-OUT
L-TVR-OUT
Latch
Latch
detection
circuit
Latch
Test and
Power ON reset
3
SS2
CS14CS2
L-TVR-IN
L-TVR-REF
R-TVR-REF
NC
27 26 25 24 23
Latch LatchLatch
Decoder
Timing
gene
5
MUTEM
Latch
24-bit shift register
Level shift
6
7
TC
GND
R-TVR-IN
Decoder
8
MUTE
R-TVR-OUT
Zero crossing
Latch
9CK10
R-MVR-AGND2
R-MVR-OUT
Latch Latch
detection
circuit
11
STB
DATA
R-MVR-AGND1
22
R-MVR-IN
21
20
R-ZX-AGND
19
R-ZX-IN
18
R-SW-OUT
17
R-SW-IN4
16
R-SW-IN3
15
R-SW-IN2
14
R-SW-IN1
NC
13
VSS
12
IC414: BA15218F
Dual high slew rate, low noise operational amplifier
OUT1
– IN1
+ IN1
1
2
1ch
+–
3
EE
V
4
VCC
8
OUT2
7
2ch
– IN2
6
–+
+ IN2
5
Page 4
A
BCDEFGH I JK
L MN
A-S1000
FUNCTION 3/3
1
Page 61 D9
to FRONT (14)_W8A, W8B
(R, L models)
To POWER TRANSFORMER
2P
600mm
(U, C, T, K, A, B, G, J models)
W11A
CB2
W11B
2
5.0
5.0
5.0
0
0
3
0
0
5.0
5.1
0
7.6
0
0
0
0
0.7
0
7.6
7.9
6.5
3.3
6.5
6.5
5.1
5.1
5.1
0
7.6
3.2
3.3
CB3 CB4
4
0
0
0.8
W1
0
7.6
7.6
8.2
9.5
7.6
8.9
8.2
7.6
7.6
7.6
7.6
7.6
0
3.3
8.2
3.3
0
W10A
W10B
AC8.6
AC IN
POWER ON/OFF switch
5
Page 59
to FRONT (1)_CB501
6
Page 58
to MAIN (3)_W317
7
To POWER TRANSFORMER
8
9
B4
L3
CB25
CB23
AC29.8
-19.4
s310
C3036
C3037
C3041
UR05810
100/35
UR25747
47/35
UR25747
47/35
UR25747
47/35
UR25747
47/35
UR25747
47/35
UR25747
47/35
C3042
s311
s400
R3044
R3050
C4049
C4050
C4051
IC51
19.5
0
-19.5
0
19.6
1.3
12.0
0
0
0
4.9
0
12.0
10.6
s401
s402
s403
C4052
C4053
C4054
C4093
C4094
C4114
C4115
C4127
C4128
C4233
C4234
C4108
C4110
IC404
IC405
IC406
0
-19.4 12.1
IC52
-12.0
s404
W3
12.2
Page 55
0
0
11.9
11.9
-12.1
W4
to FUNCTION (1)_CB302
Page 61
0
to FRONT (13)_CB79
K2
H6
R4072
R4164
IC51: NJM7812FA
Voltage regulator
V807090
1P100
WK04180
10/16
UR05810
100/35
UU23710
10/16
YA089A0
LME49723MA
V807090
1P100
HF35510
1/2P100
WM09800
4.7/16
UR25747
47/35
WM09800
4.7/16
X5482A0
NE5532DR
HF35510
1/2P100
INPUT
OUTPUT
COMMON
HF35510
1/2P100
WM09800
4.7/16
UR25747
47/35
WM09800
4.7/16
X5482A0
NE5532DR
HF35510
1/2P100
IC52: NJM7912FA
Voltage regulator
HF35510
1/2P100
WM09800
4.7/16
UR25747
47/35
WM09800
4.7/16
X5482A0
NE5532DR
HF35510
1/2P100
R1
Q3
Q4
R2
D2D1
R3
Q5
Q6
Q2
R5
R6
Q1
Q7
Q8
R7
Q10
Q12
R4
Q15
Q19
R10
Q17
Q9
R9R8
Q14
Q11
Q13
C1 C2
HF35510
WM09800
UR25747
WM09800
X5482A0
NE5532DR
Q16
Q23
Q18
Q24
1/2P100
4.7/16
47/35
4.7/16
HF35510
1/2P100
R22
Q25
Q20
R13
R20
R14
C3
HF35510
1/2P100
WM09800
4.7/16
UR25747
47/35
WM09800
4.7/16
X5482A0
NE5532DR
HF35510
1/2P100
COMMON
R23
R24
OUTPUT
Q21
D3
Q22
R17
R16R15R21R12R11
R18
R19
INPUT
HF35510
1/2P100
WM09800
4.7/16
UR25747
47/35
WM09800
4.7/16
X5482A0
NE5532DR
HF35510
1/2P100
10
FUNCTION (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.
57
Page 5
A-S1000
A
BCDEFGH I JK
L MN
1
MAIN
F6
to MAIN (2)_CB75
CB55
IC102
5.1
MAIN (4)
54.9
2
54.4
52.452.4
52.4
52.4
52.4
6.4
3
6.4
1.7
1.9
Page 56 M2
W102
Ground point
52.4
7.0
7.0
6.4
7.0
1.9
6.4
1.7
1.9
54.4
53.9
54.4
53.6
53.0
53.0
53.0
52.4
0.7
0.7
53.6
-49.8
54.9
-56.4
-43.0
-50.4
52.4
0.7
0.7
0
0
-43.2
1.7
-43.0
-43.0
-43.7
-43.8
to FUNCTION (2)_CB405
4
-45.4
5
MAIN (1)
CB52
M2
to MAIN (3)_W314
Idling adjustment
54.9
-1.7
1.7
-1.7
-44.5
-44.9
Page 61
to FRONT (12)_W101A, W101B
1.7
#
-44.9
1.7
-45.5
#
-44.9
1.7
-45.5
#
-44.9
-45.5
H4
54.9
54.8
0
CB59
CB64
1.51.7
1.7
1.5
1.7
54.9
-45.5
-45.6
1.5
-45.7
-45.6
CB54
CB60
54.9
1.7
1.7
1.7
1.7
#
-45.9
1.7
-45.5
#
-45.9
1.7
-45.5
1.6
54.9
-45.4
-45.7
#
-45.9
-45.5
-45.4
-44.5
-45.4
F1
to MAIN (1)_CB55
CB75
MAIN (5)
0.9
0
CB21
W103
AC82.6
0
-56.4
56.5
0
To POWER TRANSFORMERTo POWER TRANSFORMER
0
-31.8
CB22
54.9
10.4
0.6
0.6
0
0
0.6
AC48.1
31.9
0
To POWER TRANSFORMER
-43.2
-43.2
-44.9
-43.9
CB57 CB58
IC202
5.1
0.9
0
W104
DC47.2
DC47.2
W303C
W303D
W303B
W303A
10 W
5 k-ohms
10 W
5 k-ohms
K8
AC35.1
-23.4
-23.4
-18.8
-45.4
-46.3
CB24
0
23.4
0
-15.5
0
23.4
0
-15.5
-18.8
-17.5
-17.5
-45.3
-46.3
AC35.1
W317
0
4.4
IC300
-15.5
-16.5
0
0
-16.5
0
5.1
5.1
3.7
-16.5
3.2
3.7
0.6
5.1
-15.5
IC301
4.5
-16.5
5.1
5.1
AC35.1
-15.6
4.6
IC302
4.4
-16.5
0.6
4.5
-15.6
IC303
-16.5
4.6
0
CB26
0
-16.5
0
0
-16.5
0
-18.3
5.1
-16.25.1
-45.1
AC35.1
0
-23.2
23.4
0
-15.6
0
23.4
-15.6
-16.2
-45.1
-23.2
0
-18.3
-46.2
W314
to MAIN (1)_CB52
W315
W318
W316
Page 61 A3
to FRONT (11)_CB34
Page 57
to FUNCTION (3)_CB25
To POWER TRANSFORMER
10 W
5 k-ohms
W304C
W304D
DC46.9
10 W
5 k-ohms
W304B
W304A
DC46.9
-45.2
C5
C6
6
54.8
54.4
52.4
52.4
52.4
52.4
7
W202
M4
52.4
6.2
0.2
1.6
1.7
52.4
6.7
0.7
6.2
6.7
1.7
6.2
1.6
1.7
Page 56
to FUNCTION (2)_CB406
Ground point
54.4
53.8
54.3
53.5
53.0
53.0
53.0
52.4
0.6
0.6
53.5
-49.7
54.8
-54.8
-42.9
-50.3
52.4
0.6
0.6
0
-43.0
1.5
-42.9
-43.5
-43.8
8
Idling adjustment
1.5
-44.4
-44.4
-44.9
Page 61
H8
54.8
54.7
0
W203
CB71
Page 59
to FRONT (1)_CB521
MAIN (3)
to FRONT (13)_W201A, W201B
OUT L
-1.5
1.7
#
-44.9
1.7
-45.5
#
-44.9
1.7
-45.5
#
-44.9
-45.5
CB84
1.5
1.7
-45.5
44.9
-45.5
-45.5
CB79 CB80
54.8
1.7
-1.7
-43.0
1.7
1.7
1.7
#
-45.9
1.7
1.5
1.7
1.7
1.5
1.5
1.6
-45.6
54.7
-45.4
-45.6
1.7
-45.6
-45.6
#
-45.9
-45.6
#
-45.9
-43.8
-44.5
-43.0
-44.9
CB77 CB78
54.8
10.4
0.6
0.6
0
0
W204
CB73
CB76
IC102, 202: LM61CIZ
Temperature sensor
9
10
MAIN (2)
★ 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.
58
CB72
CB74
Note) Those parts marked with “#” are not included in the P.C.B. ass’y.
（マーク＃の部品は、基板に含まれません。）
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
discharging is about 30 seconds.
1. C308 on MAIN (3) P.C.B..
2. C309 on MAIN (3) P.C.B..
3. C335 on MAIN (3) P.C.B..
4. C336 on MAIN (3) P.C.B..
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記箇所には電源をOFFにした後も電荷が残り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5kΩ/10W）を下記箇所の端子間に接続して放電してください。放電所用時間は約30秒間です。
1. MAIN（3）P. C . B . のC308
2. MAIN（3）P. C . B . のC309
3. MAIN（3）P. C . B . のC335
4. MAIN（3）P. C . B . のC336
Page 6
A
BCDEFGH I JK
L MN
A-S1000
FRONT 1/3
1
POINT A-1 XL501 (Pin 23 of IC502) POINT A-2 1 / Pin 1, 2 / Pin 3 of CB501
1CB501 (+5V)
Writing port
CB515
2
0
4.6
0
CB507
W5006
3
IC501
0.3
0.5
1.8
2.6
2.6
0
0
1
4
A-2
CB501
0
2
12.0
5.6
Page 57
C5
to FUNCTION (3)_W1
5.6
0
5.1
1.3
1.3
2.6
2.6
2.8
2.4
3.0
5.0
0
1.0
0.7
0.7
0.7
5.0
0
5.0
1.5
0
0
0
0
0
0
5.0
0
4.9
0.5
0.5
1.0
3.9
1.3
005.0
0
0
5.0
MICRO
PROCESSOR
5.0
0
5.0
IC502
A-1
0
2.1
0
0
2.5
000
5.0
4.9
0
000
4.9
5.0
5.0
000
0
0
0
1.8
1.0
1.3
3.0
2.4
2.8
0.2
5.0
3.9
0
0
0
0
0
0
3.9
0.2
5.1
5.1
5.1
5.1
5.1
IC504
3.9
5.1
5.0
1.3
1.5
5.0
0
0
5.1
5.1
5.0
0
0
5.1
5.0
0
5.1
CB512
5
000
0
FRONT (9)
W5004
5.0
0
CB509
FRONT (6)
W5008
POWER
indicator
TUNER LINE 1 LINE 2 CDPHONO
5.0
5.1
5.0
5.1
FRONT (3)
INPUT indicator
5.0
5.0
5.1
5.1
W5003A
W5005A
W5009A
W5007A
CB501 (/RES)
2
CB501 (/RES)
POWER ON POWER OFF
MAIN
AUDIO
DIRECT
W5003B
MUTE
5.0
5.0
5.1
5.1
IC503
0
0.6
0.8
12.0
0
0
0.6
12.0
0
5.0
0.2
0.8
0.6
FRONT (4)
VOLUME
FRONT (5)
W5005B
IC501: TC74HC4051AFEL
INPUT
SELECTOR
W5009B
AUDIO MUTE
FRONT (7)
W5007B
8-channel analog multiplexer/demultiplexer
A
B
C
INH
1CB501 (+5V)
2
POWER ON
COM
C
IN
0
Logic Level Converter
OUT
OUT
C
IN
41
1
62
2
COM 3
3
74
4
55
5
INH 6
6
VEE 7
7
GND 8
Vcc16
215
114
013
312
A11
B10
C9
TREBLE
5.8 5.1
IC505
5.8
7.4
0
5.8 5.0
5.1
4.3
4.3
5.1
3.6
4.9
6
12.0
0
0
7
0
5.0
FRONT (2)
0
5.0
5.1
-12.1
0
12.0
-12.1
0
11.9
0
0
11.9
0
0
12.0
-12.1
12.0
11.9
0
-12.1
0
0
12.0
-12.1 -12.1
11.9
0
11.9
0
0
12.0
-12.1
12.0
11.9
0
0
11.9
0
0
12.0
-12.1
12.0
11.9
0
12.0
11.9
0
-12.1
0
0
12.0
0
0
+/-
0
0
BASS
+/-
BALANCE
L/R
CB517
CB519
Page 56
M8
to FUNCTION (2)_W4004
Page 55
K8
to FUNCTION (1)_W3004
IC503: LB1641
Motor driver
5
IN 1
1
GND
P1
3281097
OUT 1
VCC 2
OUT 2
P2
VCC 1
4
PRE DRIVER
INPUT LOGIC
6
IC504: LC709004A-TLM-E
I/O-expander for microcontroller
DIN
CLK#
CS#
2
3
4
Serial/parallel converter/shift register
IC505: RH5RE58AA-T1-FA
Voltage regulator
V
IN
2
VZ
Vref
IN 2
VOUT
3
+
–
1
GND
14
DOUT
15
VDD
19
VSS
Control logic
CB503
W5002
CB521
RES#
21
I/O control/output register
5.3
SPEAKERS
OFF
A
8
A+B
B
CB524
12.0
5.7
5.7
5.0
5.3
5.0
5.3
5.0
-12.0
Page 58
to MAIN (2)_W203
K6
port 0 I/O buffer
24 17
P00
P07
port 1 I/O buffer
15 8
P10
P17
IC502: M38039xxxxx
Single chip 8-bit microprocessor
Main
5.3
CB525
JK501
9
JK501
-12.1
-12.1
CB504
5.0
-12.0
5.3
5.0
-12.0
PHONES
M3
FRONT (1)
Page 56
to FUNCTION (2)_W4005
Main
clock
clock
Sub-clock
input
Sub-clock
output
XCIN
XCOUT
28
29
VSS
VCC CNVSS
32
1
Data bus
Reset input
RESET
input
output
XIN
XOUT
30 27 26
31
MICROPROCESSOR
Clock generating circuit
RAM
ROM
A
X
Y
S
PC
LPCH
PS
D/A
A/D
converter
(10)
PWM
(8)
SI/O2
(8)
SI/O1
(8)
converter
2 (8)
D/A
converter
1 (8)
SI/O3
(8)
CNTR0
CNTR1
CNTR2
Prescaler 12 (8)
Prescaler X (8)
Prescaler Y (8)
Timer 1 (8)
Timer 2 (8)
Timer X (8)
Timer Y (8)
Timer Z (16)
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.
VREF
INT00
P4 (8)
I/O port P4
28 29
INT1
INT2
INT40
P3 (8)
34 35 3637 38
33
I/O port P2
(LED drive)
P2 (8)
39 40
42 43 4445 46
41
10 11
INT3
P5 (8)
13 14 1516 17
18 19 57 58 59 60 61 62 63 64
12
21 22 2324 25
20
I/O port P5 I/O port P3
P6 (8)
5 6 7 8 9
432
AV
SS
I/O port P6
P1 (8)
I/O port P1
47 48
INT01
INT41
50 51 5253 54
49
I/O port P0
P0 (8)
55 56
59
Page 7
A-S1000
A
BCDEFGH I JK
L MN
1
FRONT 2/3
W1001
20.9 25.7
Page 61
G3
to FRONT (11)_CB27
2
0.6
10.6
0
0.6
10.6
0
0.6
10.6
0
0.6
10.6
0
3
0
-0.5
-0.5
-10.5
-0.5
0
-0.5
-10.5
0
-0.5
0
-0.5
-10.5
25.1
24.2
24.6
5.4
5.4
0
0.1
6.0
-0.1
24.6
25.1
5.5
0.1
0.1
24.2
24.7
0.8
24.6
25.2
0.8
-0.7
-24.7
24.2
0.8
0.7
25.7
0.2
-0.1
-25.2
20.9 25.7
0.6 0.6
00
0
-0.5
-20.7
-20.7
0.6
0
0.5
0.5
-25.2
4
-24.7
-25.2
W1002
PHONO
Page 55
to FUNCTION (1)_CB301
B3
5
25.2
-24.6
-24.7
-24.2
-10.5
6
-0.6
-0.6
0
-10.5
0
-0.6
-10.5
0
-0.6
-10.5
0
-0.7
-0.7
-25.3
-0.1
0.1
0
5.4
0
0.6
7
10.6
0.6
0
10.6
0.6
0
10.6
0.6
0
10.6
24.2
24.2
25.1
0.1
6.0
6.0
24.4
MM/MC
6.0
24.4
24.6
25.1
0.1
5.5
0
24.6
24.2
0.7
24.7
24.7
-11.8 11.9
0.2
0.7
25.7
0.7
-11.8 -11.8
25.2
-11.8 11.9
W1003
Page 55
K9
to FUNCTION (1)_CB305
SWITCH
8
9
10
FRONT (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.
60
Page 8
A
BCDEFGH I JK
L MN
A-S1000
FRONT 3/3
1
32.0
2
-30.0
9.6
9.6
CB34
-30.0
9.6
9.6
32.0
29.9
29.9
12.2
12.2
12.2
0
30.0
30.5
30.0
20.4
30.5
29.9
25.5
30.0
29.9
25.5
30.0
29.9
25.5
30.0
29.9
19.6
29.5
19.6
CB27
Page 60
M2
to FRONT (10)_W1001
CB59
Page 55
K2
to FUNCTION (1)_W3006
10.7
FRONT (12)
-11.9
M2
3
Page 58
to MAIN (3)_W316
W6
Page 56
M6
-11.9
-11.9
to FUNCTION (2)_CB404
4
to MAIN (1)_CB64
Page 58
E3
W101B
A+-
SPEAKERS
R CH
B+-
-29.9
-9.3
-29.9
-29.9
-11.7
-29.4
-12.2
0
-12.2
-29.9
-20.2
-29.9
-25.1
-25.5
-29.4
-25.5
-29.4
-19.6
-29.4
W101A
-19.3
5
-29.9
-29.4
-30.3
-30.0
-30.0
-29.9
-29.4
-29.4
FRONT (11)
-31.9
-31.9
FRONT (13)
6
CB79
Page 57
H8
to FUNCTION (3)_W4
10.7
7
FRONT (14)
R, L models
-11.9
-11.9
-11.9
OUT L
8
W12B
W12C
W12D
VOLTAGE SELECTOR
230-240V
220V
110V
120V
1-2, 5-6
2-3, 6-7
3-4, 7-8
4-5, 8-1
Page 58
to MAIN (2)_CB84
E7
W201B
W201A
W12A
A+-
SPEAKERS
L CH
B+-
9
10
To POWER TRANSFORMER 8P
620mm
W8A
W8B
Page 57
G2
to FUNCTION (3)_CB2
W12E
W12F
W12G
★ 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.
61
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