Diagrams; Block Diagram - Cd Section - Sony CFD-S28L Service Manual

6-1. BLOCK DIAGRAM – CD Section –
MAIN BOARD (1/2)
CNP701
PD1 I-V AMP
12 5
PD1
38
DETECTOR
PD2 I-V AMP
A D
13 4
PD2
39
10 7
B C
11 6
F
9 8
E
14 3
OPTICAL PICK-UP
(KSS-213C)
41
LASER DIODE 42
AUTOMATIC
7 10
POWER CONTROL 36
Q701
PD LD
5 12
2-AXIS
DEVICE
3 14
17
18
2 15
4 13
26
1 16
27
CNP707 CNB702
3 4
2
M702
M
4
3
(SLED)
1
1 6
12
M701
M
2 5
(SPINDLE)
11
5 2
S701
(LIMIT)
6 1
CD MOTOR BOARD
05
SECTION 6

DIAGRAMS

RF
RFO
+
SUMMING 33
AMP
RFI
32
FOCUS OK
AMP
FOCUS OK
COMPARATOR
MIRR
TTL
AMP
TTL
RF AMP,
FOCUS/TRACKING DEFECT
IIL
SERVO AMP IIL
IC701 (1/2)
IIL
TTL
FOCUS
FEO FEI
FOCUS PHASE
ERROR 1 2
COMPENSATION
AMP
FE BIAS
40
F
TRACKING
TEO TEI
I-V
TRACKING PHASE
45 47
E ERROR
AMP COMPENSATION
AMP
LD
LD PD
AMP AMP
PD
37
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
T+
TIN
TRACKING
19
T–
COIL DRIVE
F+
FOCUS FIN
25
F–
COIL DRIVE
SLED SERVO
IC701 (2/2)
SL+
SLIN SLO SLP
SLED SLED
3 16 14
SL–
MOTOR DRIVE AMP
SP+
SPIN SPO
SPINDLE
9 14
SP–
MOTOR DRIVE
MUTE
7
– 17 –
FILTER
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC703
30 33 29 31
RF
ASYMMETRY
35 DIGITAL PLL
CORRECTION DEMODULATOR
ASYI
37
ASYO
38
XPCK
48
FOK
FOK
27 18
DATO
DATA
22 12
CLK CLKO
20 14
XLT XLTO
21 13
LOCK
19
XRST
23 79 XRST
DIGITAL
SENS1 SEIN
25 10
CLV
C.OUT CNIN
24 11
SENS2
26
FEO
6
21 5 4 6
TAO
13
8 7 5
9 C-RST
6 C-SENS2
SYSTEM CONTROLLER
IC501 (1/2)
SPI
15
ERROR 16K
RAM
CORRECTOR
PCMD PCMDI
41 42
BCK BCKI
EFM
43 44
LRCK LRCKI
39 40
C2PO
50
DOUT
DIGITAL
53
OUT
SUB-CODE
PROCESSOR
XUGF
47
WFCK
56
CPU INTERFACE
EMPH
54 55
GFS EMPHI
49
7 9 8 57 58 59 17 15
12 10 11 1
C-MUTE 68
KH503
2
C-DOOR 78
1
– 18 –
CFD-S28L
OVER
SERIAL
SAMPLING NOISE
INPUT
DIGITAL SHAPER
INTERFACE
FILTER
PWM
PWM
AOUT1
65
AOUT2
76
75 66
C4M
52
XTSL
CLOCK
51
GENERATOR
OSC
62 70 71 74 67
X701
16.9344MHz
R-CH
A
(Page 21)
S501
(CD LID OPEN/CLOSE DET)
• SIGNAL PATH
: CD PLAY
R-CH: Same as L-CH.