Schematic Diagrams - Yamaha CD-S300 Service Manual

A B C

SCHEMATIC DIAGRAMS

MAIN 1/2
1
2
3
CB1
0
0
0
5.0
4 0.2
2.0
0.2
0
0
1.8
5.0
1.7
0
1.8
1.8
1.8
1.9
5 CB4
5.0
1.8
1.8
3.3
3.4
3.3
3.3
To Loader mechanism unit
6
CB2
0.3
0.3
3.3
To Loader mechanism unit
0
0
7
3.2
3.4
0
3.4
3.5
3.1
CB3
To Loader mechanism unit
8
9
POINT A XL1 (Pin 72 of IC2) POINT B XL2 (Pin 6 of IC7)
10
D E F
SWITCH/
3.3
BUFFER
3.3
1.7
1.7
IC4
0
DIGITAL OUT
CD IN
1.8
1.7
1.7 A
2.4
1.8 CD CONTROLLER
1.8
1.8
1.8
1.8
1.7
1.7
3.3
0
1.8
1.8
3.1
1.8
2.4
1.7
1.7
2.0
2.4
0.2
0
0
0
0 4.0
7.2 3.3
0.3 3.3
0.3 1.7
3.3 1.7
3.4
1.7
3.3
0.2
3.3
0 0
3.2 1.0
0
3.4
0 0.3
3.4 0.3
7.3 1.7
7.3 1.7
1.7 1.7
1.7 1.7
1.7
1.7
ACTUATOR DRIVER
IC6: R5523N001A-TR-F
IC4: TC7SH08FU
High side switch IC
2-input AND gate
Vcc
V 4 5 V
IN OUT Vss
IN B 1 5 V
CC
IN A 2 GATE CURRENT
EN 1
CONTROL LIMIT
OUT Y FLAG
GND 3 4
DELAY RES
3 FLG
UVLO
THERMAL
SHUTDOWN
2
GND
G H I
ANALOG OUT
1.7
1.7
1.2
0
0
0
3.3
3.3
0
3.3
0
3.1
3.1
3.3
0.2
3.3
3.2
3.2
3.2
0.6
0
3.3
IC1: LA6565-TE-L-E
Power amplifier 5-channel built-in
Thermal Shutdown
FWD 1
(LOAD output voltage setting)
REV 2
MUTE
VCCP2 3
Turns ON/OFF a
corresponding CH
H: Output ON
VLO- 4
L: Output OFF
VLO+ 5
VO4+ 6
VO4- 7
VO3+ 8
IC8: MFI341S2161
VO3- 9
IC digital
Power System GND
-
FR
+
P4/IRQ
P3/IRQ
H8/300H I/O port P2/IRQ
MICROPROCESSOR P1/IRQ
VO2+ 10
RNG
System control
WDT
FMU VO2- 11
Security logic
Voltage monitoring circuit
Internal address bus
VO1- 12
ROM (112 kbytes)
Internal data bus
RAM (4 kbytes) VO1+ 13
Power-on
EEPROM (16 kbytes + 2 kbytes) VCCP1 14
reset circuit
Interval timer 1
VCCS 15 Power System GND
20 19 18 17 16
Interval timer 2
NC 1 15 NC 44k
VIN1+ 16
11k
On-chip
Modular multiplication Register P4/IRQ 2 14 P3/IRQ + -
oscillator
coprocessor (512 bytes) - +
Top view
NC 3 13 P1/IRQ VIN1- 17
RES 4 12 P2/IRQ
VIN1 18
Vcc 5 11 Vss
6 7 8 9 10
J K L
CURRENT LIMITER
IC6
0
3.2
0
2.4
3.3
0
0
3.3
0
3.4 USB INTERFACE
0
0
0
0
1.8 0
0
1.8
B
3.4 0
3.2
iPod/USB IN 3.3
3.2
0
3.2 0
0 0
3.4
3.3
3.3 3.3
3.3
3.3
0
3.3
0 3.3
0
0
0
No replacement part available.
IC2: LC786922E-01UY-E
CMOS LSI compact disc player IC
Unit
Resistance: ohm
Signal System GND
36 SGND
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
35 VCONT
LPF CLOCK
GENERATOR
EFMIN 1 60 LRSY
CH1 34 MUTE1
PCM Output Control
RFOUT 2 59 DATACK
CH2,3,4 33 MUTE234
LPF 3 Audio Output 58 DATA
8FS DIGITAL FILTER/
44k SLICE Control
1 bit DAC
PHLPF 4 LEVEL 57 TEST
11k - 32 VIN4-
- CONTROL
+
+ AIN Stream Control/Audio Input STDATA
5 56
To VREFOUT
31 VIN4
CIN 6 RF Audio Control 55 STCK
SIGNAL MP3, WMA,
- MUTE/DEEMPHASIS/
BIN 7 PROCESSOR DECODER 54 STREQ
+ 30 VREF_IN ATTENUATION CONTROL/
BASS/TREBLE/
DIN 8 53 MODE
HFC Filter Memory
MONITOR
29 VREF_OUT 1 M Bit
SLCISET 9 52 CONT0
RFMON 10 VREF 51 CONT1
28 REG_OUT
(VCC) VREF SRC CONT2
Power 11 50
REG_IN TES, HFL,
- System INTERPOLATION MUTE
DEFECT
+ GND JITTC 12 49 SUB_READY0
FR System
REG_OUT ROM
EIN 13 Control 48 REG_READY0
ERROR CORRECTION
JITTER DECODER
FIN 14 47 RESB
+ 27 REG_IN Synchronization
PCNCNT 15 APC TEXT 46 DO
- MCU
Detection DECODER
I/F
TE 16 EFM 45 DI
26 VIN+OP Demodulation
D/A
+ TEIN 17 44 CL
SUBCODE
-
DECODER
25 VIN-OP 18 SERVO 43
LDD CE
A/D CONTROL
19 42
LDS DOUT Control DVSS
24 VO_OP
CD PLL
AVSS 20 PLL3 41 DVDD
PORT CONTROL
23 VIN3
44k
11k 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
- 22 VIN3-
-
+
+
To VREFOUT
21 VIN2
44k
20 VIN2-
11k -
-
+
+
19 VIN2+
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
★ Components having special characteristics are marked
and must be replaced ● 印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
with parts having specifications equal to those originally installed. パーツリストに記載されている部品を使用してください。
★ Schematic diagram is subject to change without notice.
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
M N
CD-S300
iPod/USB IN
CB6
0
0
0
0
0
Page 43 M8
to OPERATION (3)_W751
CB5
0
0
0
3.3
0
サービス部品供給なし
IC7: LC87F1HC8A-F5AL1-E
CMOS LSI
Interrupt control
IR PLA
Standby control FROM
CF USB PLL
RC
Clock
PC
generator
X'tal
SIO0 Bus interface ACC
SIO1 Port 0 B register
SIO4 Port 1 C register
SIO9 Port 2
ALU
Timer 0 Port 3
Port 7
Timer 1
PSW
INT0 to INT7
Timer 4
Noise filter RAR
Timer 5 UART1
RAM
Timer 6 Audio interface
Stack pointer
Timer 7 ADC Watchdog timer
Infrared remote
Base timer control receiver circuit
Onchip debugger
PWM0
PWM1
USB host
41