
4-2. BLOCK DIAGRAM — CD SECTION —
– 27 –
– 28 –
43
14
15
16
21
PCMD
20
LRCK
22
BCK
34
XTAI
DIGITAL SIGNAL
PROCESSOR
IC1
55
CNIN
54
SEIN
1F
O
K
3
MDP
27
GFS
46
SQSO
47
SQCK
49
SENS
51
DATA
52
XLAT
53
CLOK
SCOR
SERVO 5V
OPTICAL PICK-UP
KSS-521A
37
FE BIAS
PD
LD
RV1
FOCUS BIAS
RV4
FOCUS GAIN
LD DRIVE
Q2
1
FEO
2
FEI
16
SLO
23
C. OUT
24
SENS
25
FOK
6
FEO
13
TAO
34
PD
33
LD
Q1
16
CH2+
15
CH2-
18
CH1+
17
CH1-
19
CH1 IN
22
CH2 IN
24
CH3 IN
TRACKING
FOCUS
3
CH4 IN
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
13
CH3+
14
CH3-
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
12
CH4+
11
COM
6
FWD
7
REW
4
CTL1
5
CTL2
10
CH5+
3D
I
1
LRCI
2
BCKI
4
CLK
9
DOUT
10
BCKO
11
LRCO
6
RSTN
D-BASS
CONTROL
IC701
MOD1
MOD2
DB/DS
6D
I
5
BCKI
8
L
RCI
3
CLKO
12
LO
14
RO
R-CH
18
XTI
19
XTO
DIGITAL FILTER, D/A CONVERTER
IC702
X700
16.934MHz
2
DEEM
22
RSTN
30
DEEM
6G
FS
17
SQSI
31
DBMOD1
16
DBMOD2
19
SQCKO
78
CD SENCE
SYSTEM CONTROL
IC801(1/2)
CD 5V
M
M
M
I-V
CONV.
4
D
ATA25
3
X
LAT25
28
CLOK25
75
SCOR
5
XRSRO
2F
O
K
23
C OUT
1
LD ON
115
R
E
V
114
FW
D
113
C
T
L
2
CD 5V
REG
Q909
MD 8V
REG
Q912
MD 8V
SWITCH
Q910, 911
CD POWER
SWITCH
Q907,908
SERVO 5V
REG
Q913
12
0
SELF SW
11
7
IN SW
11
6
L SW
11
8
D SW
CD ON
32
35
MD ON
SW2
(SELF)
CD 5V
BACK UP
MD 8V
SERVO 5V
MAIN
SECTION
1
Signal path
: CD
C580
C480
SW3
(LIMIT)
SW1
(DISC IN)
SW4
(DOWN)
04
CDX-C480/C580
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