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CDX-C6850R
Q Q
3 7 6 3 1 5 1 5 0
4-1. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
T E
L
1 3 9 4 2 2 9 6 5 1 3
TRACKING
04
w w w
SECTION 4
DIAGRAMS
RF AMP, SERVO CONTROL
KSS-521A
IC2
35
PD1
RF 0
31
PD2
36
I-V
39
E
CLK
19
AMP
38
F
XLT
20
DATA
21
SENS
24
FOK
25
1 FEO
C. OUT
23
2 FEI
RV4
FOCUS
GAIN
FE BIAS
37
RV1
PD
FOCUS
34 PD
BIAS
XRST
22
LD POWER
CONTROL
33 LD
Q1, 2
SLO
16
LD
FEO
6
TAO
13
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
CH2+
16
CH2 IN
LEVEL
22
SHIFT
CH2–
15
CH1+
18
CH1 IN
LEVEL
FOCUS
19
SHIFT
CH1–
17
CH3+
13
CH3 IN
M902
LEVEL
M
24
(SLED)
CH3–
SHIFT
14
CH4 IN
CH4+
M901
LEVEL
M
12
2
SHIFT
(SPINDLE)
CTL2 5
FWD
6
CH5+
M903
LEVEL
M
10
(LOADING)
SHIFT
REV
7
• Signal path
: CD
x
a o
.
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DIGITAL SIGNAL PROESSOR
D/A CONVERTER
IC1
14
RF
PCMD
21
5
DIN
BCKIN
59
CLKO
BCK
22
6
57
XLTO
LRCK
20
4
LRCIN
56
DATO
XTAI
34
19
CLKO
54
SE IN
FOK
XTI
1
1
X700
55
CN IN
16.9344MHz
20
XTO
RSTB
15
GFS
27
SENS
50
XRST
49
SQSO
46
SQCK
47
DATA
51
XLAT
52
CLOK
53
SCOR
43
3
EXCK
45
1
2
4
Q
Q
3
7
6
WFCK
41
SELECT
3
MDP
SWITCH
Q3-6
SBSO
44
u 1 6 3
y
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2
4
8
9
9
IC702
A
V OUTL
12
CD L-CH
TUNER
SECTION
R-CH
V OUTR
9
(Page 25)
SYSTEM CONTROL
IC801 (1/3)
30
MC/DM1
17
DEEMPH
5
XRST
6
GFS
78
CD SENS
17
SQ SI
19
SQ CKO
4
DATA25
3
XLAT25
28
CLOK25
75
SCOR
SCOR
XMODE
6
57
TXT ON
EXCK
SCLK
11
27
TXT CKO
SBSO
SRDT
12
25
TXT SI
WFCK
DQSY
13
77
DQSY
CD TEXT
3
1
5
1
5
0
8
9
IC703
116
SW3
L SW
(LIMIT)
SW1
117
IN SW
(DISC IN)
SW4
118
D SW
(DOWN)
SW2
120
SELF SW
(SELF)
23
C IN
2
FOK
1
LD ON
114
115
m
c o
.
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