Schematic Diagrams - Yamaha CD-S2000 Service Manual

A B C

SCHEMATIC DIAGRAMS

DIGITAL 1/3
1
Q Q
7
3
CB301
2
To Module board
3
4
CB302
To Module board
5
CB303
T E
L 1 3 9 4
Page 44 B6
to AUDIO_CB2
6
7
W309
Page 45 L8
to POWER (1)_CB611
8
9
w w w
.
10
D E F
1 5 1
6 3
0.5
5.0
1.7
2.5 0.5
1.7
0
IC301
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
2 2 9 6 5 1 3 3.3
3.3
3.3
-12.3 -12.3 -12.3 3.3
3.3
3.3
3.3
-12.3
-12.3 3.3 3.3
3.3
0.1
0
POINT A-1 XL301 (Pin 13 of IC302)
x a o
y
i
G H
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5
0 8
0
MICROPROCESSOR
3.3
0
3.3
3.3
IC302 3.3
0
3.3
3.3
0
3.3
1 2
A-2 A-3
0
3.3
A-1 3.3
3.3
Q Q
3 7 6 3
MOTOR DRIVER MOTOR DRIVER
IC303 IC304
POINT A-2 A-3 1 / Pin 16, 2 / Pin 12 of IC302
IC302 16 pin 1
u 1 6 3
IC302 12 pin 2
.
AC cable ON AC cable OFF AC cable ON
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I J K
2 4
9 9
IC308
5.0
3.3
12
11
13 3.3
5.0
IC308
3.3 CB307
3.3
IC306 1
5.0
3
1 3.3
2 3.3
3
2 3.3 IC308
0
4 0
6
IC306 5
5.0 0
4 3.3
5 6 IC308
3.3 5.0
9 3.3
8
10
IC306 3.3
5.0
9
3.3
8
10 3.3
IC306
12 5.0
3.3
11
3.3
13
0
1 5 1 5 0 8 9 2
CB308
IC305
0
BUFFER AMP
5.0
5.0
IC307
2.5
3
2.5 2.5
5
0 4
IC307
2.5 2.5
1 7
DIGITAL (1)
IC302: M30302FAPFP
Single-chip 16-bit microprocessor
8 8 8 8 8 8 8
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
Peripheral function
System clock generator
m A/D converter
Timer (16-bit) X IN -X OUT
(10-bit 18-channel )
X
X CIN -X COUT
Input (timer A) x3
UART or clock synchronous type
c o Output (timer B) x3 serial I/O
(3-channel)
CRC arithmetic circuit (CCITT)
(Polynomial : X 16 +X 12 +X 5 +1)
M16C/60 series
Watchdog timer Memory
Microprocessor core
(15-bit)
ROM
(Note 1)
SB
DMAC
R0H R0L
(2-channel) R1H R1L USP RAM
R2 (Note 2)
ISP
R3
INTB
A0
A1 PC
A1
FB FLG Multiplier
FB
ROM contents vary depending on types.
RAM contents vary depending on types.
L M N
CD-S2000
2
8 9 9
W306
Page 45 L7
to POWER (1)_CB610
Page 43 C5
to DIGITAL (5)_CB901
IC307: TC7WU04F
Triple inverter
1A V CC
1 8
3Y 1Y
2 7
2A 3A
3 6
GND
4 5 2Y
4 9 8 2 9 9
IC306, 308: TC74HCT08AF
Quad 2-input AND gate
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
(Writing port) 2Y 6 9 3A
GND 7 8 3Y
IC305: BD4829G-TR
Voltage detector IC
V
DD
2
1 Vout
OPTICAL
–
+
Vref
DIGITAL N.C.
4
OUT
3 5
GND N.C.
COAXIAL
IC303, 304: LB1641
Motor driver
3 2 8 10 9 7
IC301: TS7ST00F
2-input NAND gate 4 VZ
IN B 1 5 V
CC
IN A 2
IN 1 5 INPUT LOGIC 6
IN 2
GND 3 4 OUT Y
GND 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.
41