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

Q Q
3 7 6 3 1 5 1 5 0
4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-521A
I-V
CONV.
SERVO 5V
RV1
FOCUS BIAS
RV4
FOCUS GAIN
PD
LD DRIVE
Q2
LD
Q1
SERVO 5V
TRACKING
FOCUS
M902
M
T E
L 1 3 9 4 2 2 9 6 5 1 3
(SLED)
M901
M
(SPINDLE)
M903
M
(LOADING)
Signal path
: CD
04
w w w
.
DIGITAL SIGNAL
RF AMP, SERVO CONTROL PROCESSOR
IC2 IC1
35 PD1 RFO 31 14 RF PCMD 21
LRCK 20
CLK 19 59 CLKO
36 PD2
XLT 20 57 XLTO BCK 22
39 E
DATA 21 56 DATO XTAI 34
38 F XRST 22 50 XRST
C. OUT 23 55 CNIN
SENS 24 54 SEIN
37 FE BIAS
FOK 25 1 FOK
SLO 16 3 MDP
1 FEO
TAO 13
FEO 6
2 FEI
34 PD
EXCK 45
GFS 27
33 LD
SQSO 46
SQCK 47
SENS 49
DATA 51
FOCUS/TRACKING COIL DRIVE,
XLAT 52
MOTOR DRIVE
CLOK 53
IC3
SCOR 43
16 CH2+ CH1 IN 19 41 44
CH2 IN 22
15 CH2-
CH3 IN 24
18 CH1+
CH4 IN 2
17 CH1-
13 CH3+
REV 7
FWD 6
14 CH3-
CTL2 5
12 CH4+
CTL1 4 SERVO 5V
11 COM
Q4, 6
10 CH5+
Q3, 5
x a o
y
i
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8
X700
16.9344MHz
Q Q
3 7 6 3
3 SCOR
5 MCK
1 EXCK
2 SBSO
4 WFCK
SW1
(DISC IN)
SW2
(SELF)
SW3
(LIMIT)
SW4
(DOWN)
CD+5V
MD 8V
COM 8V
COM+8V
REG
Q904
COM 8V
SWITCH
Q913, 919
u 1 6 3
.
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2 4
9 9 8
D/A CONVERTER
IC702
5 DIN VOUTL 12
6
BCKIN VOUTR 9 R-CH
4 LRCIN
19 CLKO
1 XTI MC/DM1 17
SYSTEM CONTROL
IC801(1/2)
20 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
1 5 1 5 0 8 9 2 4
114 CD LD
102 PH3
CD TEXT DECODER
IC703
XMODE 6 57 TXT ON
SCLK 11 27 TXT CKO
SRDT 12 25 TXT SI
DQSY 13 77 DQSY
117
IN SW/(PH1)
120 SELF SW/(IN SW)
116 L SW
118 D SW
CD 5V
REG
Q909
CD POWER
SWITCH 35 CD ON
Q907,908
MD 8V
BATT+B
REG
Q912
MD 8V
BATT+B
SWITCH 32 MD ON
Q910, 911
95
COM8V ON
m
c o
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CDX-C6850
2
9 9
MAIN
1
SECTION
9 8 2 9 9