26
26
WX-4500X
6-2. BLOCK DIAGRAM — CD SECTION —
M902
SLED
32
30
5
RF AMP
6
8
DETECTOR
&
I/V AMP
RF AMP
ENVELOPE
LPD AMP
AGC
RF
DET
BDO
DET
OFER
DET
DSL.
PLL VCO
EFM/SUBCODE
DEMODULATOR,
CD-TEXT
BUFFER
INPUT
PORT
MICRO
COMPUTER
INTERFACE
SERVO CPU
A/O
CONVERTER
SUBCODE
BUFFER
I-V
AMP
FOCUS
ERROR AMP
FOCUS COIL
DRIVE
TRACKING COIL
DRIVE
SERVO TIMING
GENERATOR
SERVO TIMING
GENERATOR
TRACKING
ERROR AMP
28
27
AUTOMATIC
POWER
CONTROL
Q101
2
1
17
18
15
16
23
26
SLED MOTOR
DRIVE
LOADING MOTOR
DRIVE
6
28
1
SPINDLE MOTOR
DRIVE
3
27
21
28
26
25
M
M901
SPINDLE
M
M903
LOADING
M
12
11
22
24
CLV
SERVO
8
12
7
9
20
28
13
27
11
18
1
11
21
10
22
13
65
30
17
18
16
62
64
60
73
75
14
10
15
8
17
70
69
77
76
63
58
59
55
10
15
44
68
53
38
14
36
12
23
20
19
18
26
25
24
39
35
31
30
40
32
34
33
CIRC ERROR
CORRECTION,
16K S-RAM
SOFT
MUTING,
ATTENUATOR
TIMING
GENERATOR
1BIT D/A
CONVERTER,
PWM LOGIC
DIGITAL
DEEMPHASIS
DIGITAL
FILTER
59
58
35
31
SYS RST
BUS CHECK
BUS ON
BUS SI
BUS SO
BUS CLK
A-MUTE
BUS CLK
BUS SO
BUS ON
B/U CHECK
SYS RESET
BUS SI
B.P.F
NA
LD
F+
F–
T+
T–
F
E
NB
A
PDE
LD
PD
PD
B
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
RFO
RFI
ARF
ENV
OFTR
BDO
FEO
TEO
TEBPF
LDON
FIN–
F+
F–
T+
T–
SLED+
SLED–
SPDL+
SPDL–
VOL+
VOL–
TIN–
FIN
RIN
SLIN–
SPIN–
FBAL
TBAL
LDON
FOD
TRD
KICK
TVD
TRV
ECM
ECS
FBAL
TBAL
DSLB
ARF
RFDET
OFT
BDO
RFENV
FE
TE
VDET
VDET
NRFDET
10
9
14
13
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC201
SENSE
FLOCK
TLOCK
MDATA
MCLK
MLD
STAT
RST
16M
X2
OUTL
OUTR
SQCK
SUBQ
BLKCK
R-CH
X101
16.93MHz
CD L
CD ON
A-MUTE
MECHA ON
SENSE
FLOCK
TLOCK
MDATA
MCLK
MLD
STAT
RST
X1
X2
FOUT
SW2
SW3
SW4
LIMSW
ROUT
SQCK
SUBQ
MECHA ON
CD-ON
BLKCK
CD MECHANISM
CONTROLLER
IC103
X301
5MHz
DIGITAL SIGNAL PROCESSOR,
DIGITAL SIGNAL SERVO,
CLV SERVO,
D/A CONVERTER,CD-TEXT
IC101
RF AMP,
FOCUS/TRACKING ERROR AMP
IC102
OPTICAL
PICK-UP
BLOCK
LASER DIODE
SW2
(DISC DETECT)
SW3
(LOADING DETECT)
SW4
(CHUCKING DETECT)
SW5
(LIMIT)
2
TUNER
SECTION
6
TAPE
SECTION
3
TUNER
SECTION
7
TAPE
SECTION
• Signal path
: CD
+
+
+
–
–
–
• R-ch is omitted due to same as L-ch.
(Page 27)
(Page 28)
(Page 27)
(Page 28)
Содержание WX-4500X Installation/Connections
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