Block Diagram -Cd Section - Sony CDX-C6850 Service Manual

4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP RF AMP, SERVO CONTROL
KSS-521A 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
FEO 6
2 FEI
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
– 23 –
DIGITAL SIGNAL
PROCESSOR
IC1
14 RF PCMD 21
LRCK 20
59 CLKO
57 XLTO BCK 22
56 DATO XTAI 34
50 XRST
55 CNIN
54 SEIN
1 FOK
3 MDP
EXCK 45
GFS 27
SQSO 46
SQCK 47
SENS 49
DATA 51
XLAT 52
CLOK 53
SCOR 43
41 44
SERVO 5V
Q4, 6
SW1
Q3, 5
(DISC IN)
SW2
(SELF)
SW3
(LIMIT)
SW4
(DOWN)
D/A CONVERTER
IC702
5 DIN VOUTL 12
6
BCKIN VOUTR 9
4 LRCIN
19 CLKO
1 XTI MC/DM1 17
X700
16.9344MHz
20 XTO RSTB 22
CD TEXT DECODER
IC703
3 SCOR XMODE 6
5 MCK SCLK 11
1 EXCK SRDT 12
2 SBSO DQSY 13
4 WFCK
CD 5V
CD+5V
REG
Q909
CD POWER
SWITCH
Q907,908
MD 8V
MD 8V REG
Q912
COM 8V MD 8V
COM+8V BATT+B
REG SWITCH
Q904 Q910, 911
COM 8V
SWITCH
Q913, 919
MAIN
1
SECTION
R-CH
SYSTEM CONTROL
IC801(1/2)
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
57 TXT ON
27 TXT CKO
25 TXT SI
77 DQSY
117
IN SW/(PH1)
120 SELF SW/(IN SW)
116 L SW
118 D SW
35 CD ON
BATT+B
32 MD ON
95
COM8V ON
– 24 –
CDX-C6850