Schematic Diagrams - Yamaha CDC-697 Service Manual

A B C

SCHEMATIC DIAGRAMS

MAIN
1
HEAD AMP
2.6
To PU mechanism unit
2
3
-2.5
2.5
0 2.5
2.5
2.5 0 4.1
5.1
0 0
5.0
0 0
5.1 5.1
2.5 2.1
2.4 2.7
2.4 2.3
2.4
2.1
4
To PU mechanism unit
(Spindle and Feed motors)
5
6
Page 36 I2
to CM (4)_CB408
7
POINT A-1 Pin 58 of IC3
8
POINT A-2 Pin 14 of IC309
MAIN (3)
9
POINT B-1 B-2 1 / Pin2, 2 / Pin1 of IC306
10
+5M 1
/RES 2
AC cable ON AC cable OFF
AC cable ON
D E F
5.0
2.5 5.0
SPC+DAC
1.4 0.1
2.5 2.5
2.5 5.0
0.1
2.0
0.1
5.0
0.1
5.0
0.1
5.0
~
4.9
0
A-1
0 0
0 5.0
2.4
2.5
5.0
2.5
0
2.5
No replacement part available.
0
5.0
0 0
0 5.0
0 0
5.0
4.9
4.8
5.0
5.0 SYSTEM 0
0
2.6
CONTROL
0 2.5
2.8
0 0
0 A-2 0
2.6
5.0
5.0
5.0
2.5 0.1
0.1
5.0
5.0 0.1
5.0
4.9
0
0
5.0
0
0 5.0
DISPLAY DRIVER
0
5.0
0 4.8
0
~
0 4.8
4.9
~
0
2.2
5.0
~
~
~
~
~
~
~
~
MAIN (4)
G H I
MAIN (1)
MAIN (6)
0
0
0
-5.2
L.P.F
0 5.0
0
0
DIGITAL AUDIO OUT
RS-232C
5.0
11.4 -0.3
6.5
MUTE
-0.3
7.2
11.4
CONTROL
4.7 5.0 11.4
5.0
0
4.7
5.0 4.7
4.7
4.6 4.7
B-1 B-2
1 2
11.5
11.5
-0.3
11.4
5.0 11.4 1.0
5.0 5.1 11.5 -0.3
5.7
2.6
0 0.1
0.7 0
0.1
11.5 -0.3
0.1
0.1
11.5 -0.3
5.0 11.4 11.5
0
0
0
-13.4 -0.3
-13.3
-5.2
-5.2
-13.3
-13.3 -13.3
-0.3
11.4
11.4
0.1
11.4
5.0
0
10.4
-28.6 -41.8
REMOTE CONTROL
IN
OUT
-20.1
-20.2
-26.3
-26.2
-26.2
-24.2
-26.2
-26.2
-24.2
-24.2
~
~
J K
IC1: AN8882SB
CD-ROM drive head amplifier
ADD
RF AGC
amp. EQCTL
RFDET
ADD
0 5.0
AC
amp.
36
0
0 A
0 35 ADD
0 GCA BCA
C amp.
-13.2
0 0 34
B
ADD
33 GCA BCA
D amp.
LINE OUT L/R
32
F Amp. GCA BCA
0
0
V
31
-13.2 -13.2
0 E Amp. GCA BCA
0 0
0
0
-5.2
IC3: MN35511AL
Signal processor and controller
OPTICAL
0
17 58 59 56 19 49 69
5.0
VDD 60
0
VSS 57
TIMING
DVDD1 4
DVSS1 GENERATOR VCO
5
/RST 18 PITCH CONTROL
/TEST 71
FE 32
TE
33
MICRO COMPUTER
INTERFACE
RFENV 34
TRCRS 37
SERVO
CPU
VDET 35
BDO 39
D/A
OUTPUT
CONVERTER
PORT
/RFDET 38
OFT
36
10 43 41 40 11 12 30 31 28 27 22 25 42 29
U, C, A, B, G, T models
U, C, A, B, G models
U, C, A, B, G models
AC 20.5 MAIN (7)
AC IN
AC 3.8
R, T, L models
AC IN
R, T, L models
MAIN (8)
-34.3
-13.3
R, L models
POWER
VOLTAGE ON/OFF
SELECTOR
MAIN (5)
MAIN (2)
R, L models
IC305: KIA79S05P-AT
Bipolar linear integrated circuit
GND
1
R5 R9 R11
Q2 Q6
R1 Q9
R6
R12 R17
R10
Q4 Q8
Q3
Q5
R10
R4
Q19 R7
R8 Q7
Q10
Q11
Q12 R18
OUTPUT
Q1
3
R20 Q17
R2 Q18
C1
Z1 Q16
Q13
Q14 Q15
R3
R15 R16
R13 R14
INPUT
2
L M N
CDC-697
ENV
detection 13
CBDO
BDO 14
BDO
15
COFTR
OFTR 16
OFTR
26
FEN
27
-
+ FEOUT
V
REF2 22
-
V
+ REF2
- 20
+ V REF1
Standby
REF2
- 2
LD
+
ELTCTL
1
PD
8 7 9 44 46 45 47 48 52 53 67 62 15 14 20 68 73 72 74 75 13 55 70 78 80 79 77
SUBCODE
DSL • PLL VCO
BUFFER
DIGITAL DE-EMPHASIS
8 TIMES
EFM DEMODULATION OVER SAMPLING
SYNC INTERPOLATION
DIGITAL FILTER
SUBCODE DEMODULATION
PLL
61 VCOF2
VCO 2
DD type
CIRC ERROR CORRECTION DAC
16k
DE INTERLEAVE
SRAM
PEM PEM
(L) (R)
INTERPOLATION
SOFT MUTING
DIGITAL DIGITAL
CLV
ATTENUATION
AUDIO
SERVO
INTERFACE
PEAK DETECT
AUTO CUE
26 21 16 1 3 2 23 24 6 76 54 51 63 64 66 65 50
IC2: AN4801SB
4-channel power operational amplifier system driver
IC303: M66003-0131FP
FL display driver
Display code
RAM CGROM
SEG00
(8-bit x 60) (35 bit x 166) 44
Segment 19 SEG25
Code
output
write
17 SEG26
circuit
CGROM
dot data 9 SEG34
CS 2 Serial data (35 bit x 16)
write
SCK 3 receive
Code/
circuit
SDATA 4
command
45 SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
code Segment DIG13/
50
select SEG40
digit
select/ DIG14/
49
XIN 7 SEG39
Clock timing Display output
generator clock scan pulse circuit DIG15/
XOUT 6 controller 48
SEG38
DIG16/
47
SEG37
DIG17/
46
SEG36
63 DIG00
Digit
RESET 1 output
circuit
Vcc1 8
53 DIG10
Vcc2 18
Vss 5
Vp 64
# 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.
35