Ic Blocks - Yamaha CDC-585 Service Manual

CDC-585/CDC-506/CDC-685/CDC-906
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IC BLOCKS

IC1 : AN8882SB
Digital Servo Head Amp
3 5 6
ADD
EQ
AMP
A
36
ADD
GCA BCA
AMP
C
35
B
34
ADD
GCA BCA
AMP
D
33
F 32 AMP GCA BCA
E
31 AMP GCA BCA
18 4 7 30
IC2 : AN4801SB
CD Driver
PGND2 PVcc2 [Focus]
TE
L 13942296513
V04-
19 18 16
Pvcc/2
L: All mute
H: Active
20
Standby
Standby
Direction
Band-gap
Detect
Vcc/Vref
SVcc
Reset Circuit
5
REST
out
23 25
FIN
SGND SVcc
IN4
IC303 : LC75711NE
FL Driver
G6 49
G5 50
51
G4
52
G3
53
G2
G1 54
VFL 55
www
TEST 56
VSS 57
OSCO 58
OSCI 59
VDD 60
.
RES 61
CE 62
CL 63
DI 64
25
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8 9 10 17 11 12
ENV
DETECTION
RF-AGC
BDO
RFDET
AC
OFTR
AMP
AMP
COMP
25 24 23 21 29 28 19
[Tracking] [Spindle]
M
V04+ V03- V03+ V02- V02+ V01-
17 14 15 12 13
Direction Direction
Detect Detect
26 2 1
PC2
IN3 L: Active IN2
H: Power Cut
DI
CL
CE
AM32
32
VDD
31 AM31
30 AM30 VSS
AM29
29
VFL
AM28
28
AM27
27
RES
AM26
26
TEST
AM25
25
AM24
24
x ao
AM23
23
y
AM22
22
AM21
21
i
AM20
20
AM19
19
AM18
18
OSC I
AM17
17
OSC O
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8
IC2 : AN4801SB
4-Channel BTL Driver
VREF-IN
1
VREF-OUT 2
N. C. 3
CBDO
13
BDO
14
GAIN 1 4
10K
COFTR
15 VCTL 1 (–)
5
16 OFTR
VM 1 (–)
6
PA
FEN
26
FEOUT VM 1 (+) 7
27
PA
8
VREF2
22
9
GND
VREF1
20 10
11
PA
VM 2 (+) 12
LD
2
PA
VM 2 (–)
13
PD
1
10K
VCTL 2 (–) 14
GAIN 2 15
N. C. 16
VCC 17
REG 5V 18
10.8K
[Traverse] PVcc1 PGND1
Q Q
3 6 7 1 3
M
V01+
10 11 9 8
Pvcc/2
Direction
Detect
VREF
23
3 4
PC1
IN1 L: Active
H: Power Cut
SHIFT
DC RAM
REGISTER
ADDRESS ADDRESS
REGISTER COUNTER
BLINKCYCLE BLINK
REGISTER GENERATOR
DISPLAY DISPLAY
REGISTER CONTROL
DUTYCYCLE DUTY
REGISTER GENERATOR
u163
GRID GRID
REGISTER CONTROL
.
INSTRUCTION
CONTROL
DECODER
TIMING
OSC DIVIDER
GENERATOR
2 9 9 4 2 8
STAND
TSD
BY
OP1
STAND BY
36
35 SS. GND
STAND BY
34
OP1 OP1
33 GAIN 4
10K 10K 10K
VCTL 4 (–)
32
VM 4 (–)
31
PA
30 VM 4 (+)
PA
29
28
GND
27
26
PA
25 VM 3 (+)
PA
VM 3 (–)
24
10K
23 VCTL 3 (OUT)
OP1 OP1
22 VCTL 3 (–)
21 VCTL 3 (+)
VCC
OP1
10K
20 VCC
OP1
REGBASE
19
3.6K
1 5 0 5 8 2 9 9 4
IC101, 102 : NJM2068D-D
IC105 : BA15218
Dual Op-Amp
OUT 1 8 +V
1 CC
–IN 2 7 OUT
1 2
+ – + –
+IN 3 6 –IN
1 2
–V 4 5 +IN
CC 2
CG
ROM
AM1
CG AM2
ROM
AD
AM35
RAM
AA1
AA2
AA3
AA4/G16
m
AA5/G15
AA6/G14
AA7/G13
co AA8/G12
G11
G10
G2
G1
DECODER
9 9
2 8 9 9