Yamaha CDR-D651 Service Manual Page 21
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B C D E F G H I J K L
CDR-D651
★ All voltage are measured with a 10MΩ /V DC electric volt meter.
★ 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.
●電圧は、内部抵抗10MΩの電圧計で測定したものです。
●s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
が必要な場合は、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。
●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。
E-24/J-20
SCHEMATIC DIAGRAM
(
MAIN
)
Point 1
Pin 59 of IC3
0V
Point 4 TP1
Pin 10 of IC1 0.2V, 0.5µsec.
IC1 : AN8882SB
Digital Servo Head Amp.
IC2 : AN8785SB
PU Driver
IC100, 101, 103, 107, 108 : NJM2068MD
Dual Op-Amp.
IC105, 106 : TC4052BF
Differential 4-channel Multiplexer
PIN CONNECTION DIAGRAM OF TRANSISTORS,
DIODES AND ICS.
D2SBA20
–
+
~
~
1SR139
1SS133
MTZJ5.6B
MTZJ5.1B
MTZJ6.2B
MTZJ30B
2A02M
1T2
Anode
Cathode
M5218AL
M5237L
1
8
OUT
COM
IN
B
C
E
2SD2396
2SB941
2SB1565
S2VB20
2SC2878
2SD400
E
C
B
2SA933S
E
C
B
2SA1708
E
C
B
+
–
~
~
M5290P
LC75711NE
NJM2068D-D
1
4
8
1
8
16
1 16
17
32
3348
49
64
IC109 : AN79L08-TA
Voltage Regulator
IC300 : HD74HC125FP
2-Input NAND
IC110 : AN78L08-TA
Voltage Regulator
Point 2
Pin 69 of IC301
–+
– +
OUT1
–IN1
+IN1
–Vcc
+Vcc
OUT2
–IN2
+IN2
1
2
3
4
8
7
6
5
16
10
9
6
8 7
13
12
14
15
11
1
5
2
4
3
X-COMMON
0X
1X
2X
3X
0Y
1Y
2Y
3Y
Y-COMMON
VEEVSS
INH
B
A
VDD
LOGIC LEVEL
CONVERTER
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
I/O c O/I
+
–
Output Pass
Transistor
Rsc
R1
R2
Excessive Electric
Current Protection
Standard
Voltage
Amp.
Heat
Protection
Starter Circuit
132
+
–
1 2 3
Output Pass Transistor
Rsc
Excessive Electric
Current Protection
Power Supply
Standard
Voltage
Amp.
Heat
Protection
Starter
Circuit
1C
1A
1Y
2C
2A
2Y
GND
Vcc
4C
4Y
4A
3C
3A
3Y
1
2
3
4
5
6
7
14
13
12
11
10
9
8
5.0
2.5
2.5
2.5
2.5
2.5
5.0
2.5
2.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
3.0
3.7
1.8
4.6
2.7
2.5
2.5
2.5
2.5
2.5
2.5
4.5
2.5
2.5
2.4
2.4
2.4
2.4
2.4
5.5
2.5
5.5
5.5
2.52.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
5.0
5.0
5.05.0
5.0
5.0
5.0
5.0
5.0
5.0
1.4
2.5
5.0
4.9
0
0
0
0
4.9
4.7
3.5
5.0 5.0
5.0
5.0
5.0
5.0
5.0
0
0
5.0
5.0
5.0
2.5
2.5
1.3
1.3
2.4
2.4
0
0
0
0
0
0
0
0
0
0
0
0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0
5.0
5.0
5.0
5.0
0
0
0
0
0
0
0
3.5
4.7
2.4
4.9
0
0
0
2.5
2.4
5.5
5.0
0
0
0
0
0
0
0
0
0
0
0
2.5
2.5
2.5
2.5
5.0
5.0
5.0
5.0
4.8
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0
0
0
1.0
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
5.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2.7
2.8
5.0
5.0
5.0
4.8
4.9
4.9
5.0
5.0
5.0
5.0
0
0
0
0
0
0
5.0
-5.0
0
0
4.8
4.3
4.9
4.9
5.0
5.0
0
0
0
0
0
0
0
0
-8.0 -12.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
7.9
7.9
7.9
7.9
7.9
0
0
0
0
0
0
0
0
0
-8.0
0
0
-5.0
5.0
0
5.0
0
0
0
0
0
0
0
-8.0
0
7.9
-5.0
5.0
-5.0
-5.0
0
7.8 10.8
0
0
0
0
0
0
0
0
0
0
0
0
-5.0
5.0
-5.0
5.0
1
4
2
OPE (4)
OPE (5)
OPE (2)
OPE (2)
OPE (2)
OPE (2)
OPE (1) OPE (1) CD-R Mechanism Unit
4
2
3
1
7
8
6
5
8
7
5
6
3
2
1
4
7
8
6
5
2
3
4
1
1
8
3
2
5
6
7
4
3
2
1
4
6
5
7
8
PICK UP
CD HEAD AMP.
PU DRIVER
SPC + DAC
LPF
SYSTEM
CONTROL
EEP
ROM
- CDR-D651 1
- WARNING: Laser Safety 2
- Laser Emitting conditions: 2
- ■ REAR PANELS 4
- 117 (4-1/4") 5
- 285 (11-1/16") 5
- ■ DISASSEMBLY PROCEDURES 6
- Connector 7
- ■ TEST MODE 8
- *1 Switching Servo Gain 9
- *2 Version Check 9
- ■ ERROR MESSAGE 10
- ■ µ-COM DATA 12
- IC3 : MN35511 14
- ■ BLOCK DIAGRAM 17
- MAIN P. C. B 18
- OPE P. C. B 19
- • Semiconductor Location 20
- SCHEMATIC DIAGRAM 21
- OPERATION 22
- PARTS LIST 23
- P. C. B. OPERATION 24
- ✻ New Parts 25
- P. C. B. MAIN 26
- ■ CHIP RESISTORS 27
- ■ EXPLODED VIEW 28
- ■ MECHANICAL PARTS 29
- 1/4W Type 34
- 1/6W Type 34
- ■ DISPLAY DATA 35
- ■ REMOTE CONTROL TRANSMITTER 36
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