Block Diagram -Cd Section - Sony CDX-CA750 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
3-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-720A
A
A 5
C
C
7
B
B
6
I-V
D
D
8
CONV.
E
E
11 TRACKING
F
F
10
PD
PD
4
LD
LD
LD DRIVE
3
Q101
TRACKING/FOCUS COIL DRIVE
SLED/SPINDLE/LOADING MOTOR DRIVE
T E
L 1 3 9 4 2 2 9 6 5 1 3
10
FOCUS
COIL
11
TRACKING
8
TRACKING
COIL
9
M902
6
SLED
MOTOR
7
MOTOR
M901
SPINDLE
12
SPINDLE
MOTOR
13
MOTOR
M903
LOADING
5
LOADING
MOTOR
4
MOTOR
w w w
.
RF AMP, LD APC,
ERROR AMP DIGITAL SIGNAL PROCESSOR
IC1
RF RFO RFAC EFM
16 61
EQ DEM
54 RFDC
FOCUS
ERROR
FE FE
14 50
TE TE
13 52
ERROR
SE
51
LD LD ON
22
AMP
HOLD SW 21
AGC CONT 20
IC7
FOCUS FFDR
22 42
COIL
FRDR
DRIVE 21 43
TFDR
25 40
SERVO
COIL
TRDR CTL
DRIVE 24 41
SFDR
SLED
31 38
SRDR
32
39
DRIVE
MDP
18 35
DRIVE
1
2
DRIVE
MUTE 1 34
MUTE 2 35
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8
DIGITAL SERVO,
(Page 24)
CD SYSTEM CONTROL
IC5
IC501
1
TUNER
SECTION
LOUT1
D/A D/A 92 CD L
LOUT2 CDMON 17
I/F CONV.
95
R-CH
BUS CLK 51
DIGITAL LOCK
34 46 LOCK
CLV BUS ON 61
(KEY BOARD)
OPEN
6
SQSO
6 49 SI2
SUB
SQCK
CODE 7 48 SCK2
SCOR
PROCESS
SCOR
24 64
MD2 MD2
73 71
XRST 11 21 CD RST
DATA 13 67 CD DATA
XLAT 14 CD XLAT
68
SCLK 17 SCLK
45
CLOK 15 65 CD CKO
SENS 16 57 SENS
GFS 22 55 GFS
FOK 32 FOK
54
Q Q
3 7 6 3
31 XIN
X1
10MHz
32
XOUT
SW3
11 SSTP
(LIMIT)
SW1 IN SW
62
(DISC IN)
SW4
10 D SW
(DOWN)
SW2 63 SELF SW
(SELF)
LM EJ
69
LM LOD
66
40 SLED –
70 DRIVE OE
LD ON
20
HOLD
22
AGC CONT
23 BUS SO
2 BUS CLK
BUS ON
DISPLAY
UNI SO
SECTION
LINK OFF
(Page 25)
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23 23
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9 9 8
4
TUNER
ATT SYSTEM CONTROL
SECTION
IC501 (1/3)
(Page 24)
A MUT 19 5 ATT
MDON DISPLAY
5
CDON 18 CDON
SECTION (Page 25)
UNI CKO
19
BUS SI 52 17 UNI SI
18 UNI SO
BUS ON
14
RESET 30 SYS RST
22
BU IN 60 BU IN
77
90 RESET SIRCS 24
HSTX
86
IC502
1 RESET 2
S101
RESET
BUS INTERFACE
IC601
1 5 1 5 0 8 9 2 4
BATT (L)
10 3
CHECK
13 RESET 2
BUS ON
12 1
CONT
9
DATA
6
8
CLK
11 4
53
SRST
BUS SI
m
c o
CDX-CA750/CA750X/CA760X
2
9 9
• Signal path
:CD
IR
RECEIVE
IC981
BU 5V
BU DET
BATT
Q602
9 8 2 9 9
BATT
Q603
8
6 3
5 2
4 1
7
CN601
BUS
CONTROL IN