Block Diagram -Cd Section - Sony CDX-4270R Service Manual

CDX-4270R
4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-521A
I-V
AMP
PD
LD
TRACKING
FOCUS
(SPINDLE)
(LOADING)
04
RF AMP, SERVO CONTROL
IC2
35 PD1 RF 0 31
PD2
36
39 E CLK 19
38 F XLT 20
DATA 21
SENS 24
FOK
25
1 FEO C. OUT 23
2 FEI
RV4
FOCUS
GAIN
FE BIAS 37
RV1
FOCUS
34 PD
BIAS
XRST 22
LD POWER
CONTROL 33 LD
Q1, 2
SL O 16
FE O
6
TA O 13
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
CH2+
16
CH2 IN
LEVEL
22
SHIFT
CH2–
15
CH1+
18
CH1 IN
LEVEL
19
CH1– SHIFT
17
CH3+
13
CH3 IN
M902 LEVEL
M
24
(SLED) CH3– SHIFT
14
CH4 IN
CH4+
M901 LEVEL
M
12 3
SHIFT
CTL2 5
FWD
6
CH5+
M903 LEVEL
M
10
SHIFT REV
7
• Signal path
: CD
DIGITAL SIGNAL PROCESSOR D/A CONVERTER
IC1 IC702
14 RF PCMD 21 5 DIN VOUTL 12
BCKIN
59 CLKO BCK 22 6 VOUTR 9
57 XLTO LRCK 20 4 LRCIN
56 DATO XTAI 34 19 CLKO
54 SEIN
FOK XTI
1 1
X700
55 CNIN
16.9344MHz
20 XTO
RSTB
15 MC/DM1 17
GFS 27
SENS
50 XRST 49
SQSO 46
SQCK 47
DATA 51
XLAT 52
CLOK
53
SCOR 43
SW3
(LIMIT)
SW1
(DISC IN)
SW4
(DOWN)
3 MDP
SW2
(SELF)
22 22
TUNER
A
CD L-CH
SECTION
(Page 23)
R-CH
SYSTEM CONTROL
IC801 (1/3)
30
DEEMPH
5 XRST
6
GFS
78 CD SENS
17 SQ SI
19 SQ CKO
4 DATA25
3
XLAT25
28 CLOK25
75 SCOR
116 L SW
117 IN SW
118 D SW
120 SELF SW
23 C IN
2
FOK
1 LD ON
114 CD LD
115 CD EJ