Diagrams; Block Diagram -Cd Section - Sony CDX-C4750 Service Manual

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP RF AMP, SERVO CONTROL
KSS-520A IC2
35 PD1 RFO 31
CLK 19
36 PD2
I-V
XLT 20
CONV.
39 E
DATA 21
38 F XRST 22
SERVO 5V
C. OUT 23
RV1 SENS 24
37 FE BIAS
FOCUS BIAS
FOK 25
SLO 16
RV4 1 FEO
TAO 13
FOCUS GAIN
2 FEI FEO 6
PD
34 PD
LD DRIVE
33 LD
Q2
LD
Q1
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
SERVO 5V
16 CH2+ CH1 IN 19
TRACKING
CH2 IN 22
15 CH2-
CH3 IN 24
18 CH1+
CH4 IN 2
FOCUS
17 CH1-
13 CH3+
M902 REV 7
M
(SLED)
FWD 6
14 CH3-
CTL2 5
12 CH4+
CTL1 4
M901
M
(SPINDLE)
11 COM
M903
M
(LOADING)
10 CH5+
Signal path
: CD
04
– 19 –
DIGITAL SIGNAL
PROCESSOR
IC1
14 RF PCMD 21 5
59 CLKO LRCK 20 6
BCK 22 4
57 XLTO
56 DATO XTAI 34 19
50 XRST
55 CNIN 1
54 SEIN X700
16.9344MHz
1 FOK
20
3 MDP
GFS 27
SQSO 46
SQCK 47
SENS 49
DATA 51
XLAT 52
CLOK 53
SCOR 43
SERVO 5V
(DISC IN)
CD 5V
CD+5V REG
Q909
MD 8V
COM 8V
BATT+B
COM+8V REG
Q904
COM 8V
SWITCH
Q913, 919
D/A CONVERTER
IC702
1
DIN VOUTL 12
SECTION
BCKIN VOUTR 9 R-CH
LRCIN
CLKO
XTI MC/DM1 17
SYSTEM CONTROL
IC801(1/2)
XTO RSTB 22
30 DEEMPH
6 GFS
17 SQ SI
19 SQ CKO
78 CD SENCE
4 DATA25
3 XLAT25
28 CLOK25
75 SCOR
5 XRST
2 FOK
23 C IN
1 LD ON
115 CD EJ
114 CD LD
102 PH3
117 IN SW/(PH1)
SW1
120 SELF SW/(IN SW)
SW2
(SELF)
116 L SW
SW3
(LIMIT)
118 D SW
SW4
(DOWN)
CD POWER
SWITCH 35 CD ON
Q907,908
MD 8V
REG BATT+B
Q912
MD 8V
SWITCH
32 MD ON
Q910, 911
95 COM8V ON
CDX-C4750/C6600
MAIN
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