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3-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
(KSS-721A)
A
A
84
C
C
85
B
B
82
D
I-V
D
83
CONV.
E
E
87
TRACKING
F
F
86
LD AMP
PD
PD
97
LD
LD
LD
DRIVE
98
Q1
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC2
FSC +
FOCUS
16
FOCUS
COIL
FSC-
COIL
15
DRIVE
TRK +
TRACKING
17
TRACKING
COIL
TRK-
COIL
18
DRIVE
+
-
SL-
M
SLED
M902
13
MOTOR
(SLED)
SL+
14
DRIVE
+
-
SP-
SPINDLE
M
11
M901
MOTOR
(SPINDLE)
SP+
12
DRIVE
+
-
LD-
LOADING
M
9
M903
MOTOR
(LOADING)
LD+
10
DRIVE
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC1
D/A
RF
EFM
CONV
EQ
DEMOD
DSUB CODE
PROCESS
FORCUS
ERROR
I/F
ERROR
SERVO
CTL
OSC
62 63 64 65
23
X1
16.9344MHz
FD
26
TD
23
SD
5
MD
6
LOAD
1
EJECT
2
A5V
SERVO 5V
AU5V
D5V
DR6V
MECH6V
(Page 16)
TUNER
SECTION
LOUT
SYSTEM CONTROL
16
CDL
A
ROUT
IC501 (1/3)
12
CDR
PACK
52
31
CD PACK
TSTB
56
51
TSTB
SI
8
21
CD_TSO
SO
7
22
CD_TSI
SCK
6
23
CD_TCKO
STB
5
55
STB
AO
4
54
AO
RST
3
53
CD_RST
RFOK
2
52
RFOK
24
60
INSW
SW1
(DISC IN)
50
CD_SELFSW
SW2
(SELF)
57
LIMIT
SW3
(LIMIT)
59
D_SW
SW5
(DOWN)
62
CD_L_ LO
63
CD_LM_EJ
15
15
IC602
RESET
33
1
RESET
3
B.UP+B
S702
RESET
Signal path
: CD
CDX-L495EE
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