Read Sony ICF-CD873L Service Manual online
ICF-CD873L
– 13 –
– 14 –
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD Section –
A
B
D
12
13
4
10
7
11
6
F
E
C
DETECTOR
36
35
27
26
18
17
2
SL-OUT+
SL-OUT–
SLO
F-OUT–
F-OUT+
T-OUT+
T-OUT–
SPINDLE
MOTOR DRIVE
M571
(SPINDLE)
S570
(LIMIT)
SLED
MOTOR DRIVE
1
M570
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP-OUT+
SP-OUT
MUTE
SP-OUT–
10
15
14
3
25
19
F-IN
T-IN
SL-IN
SP-IN
SP-IN
SLP
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC503
16
14
SLED
AMP
LD
PD
LASER DIODE
OPTICAL PICK-UP
(KSS-213B)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
31
30
25
36
23
21
19
20
22
RF AMP,
FOCUS/TRACKING
SERVO
IC501 (1/2)
FOCUS OK
COMPARATOR
MIRR
AMP
DEFECT
AMP
FOCUS OK
AMP
IIL DATA REGISTER
30
31
FILTER
34
29
FILO
PCO
CLTV
FILI
XPCK
DIGITAL PLL
ASYMMETRY
CORRECTION
CORRECTION
EFM
DEMODULATOR
DIGITAL
OUT
ERROR
CORRECTOR
16K
RAM
INTERNAL BUS
SUB-CODE
PROCESSOR
CLOCK
GENERATOR
SERVO AUTO SEQUENCER
DIGITAL
CLV
17
15
44
46
42
16
8
4 5
7
9 11 10
1
2
3
6
73
14
13
38
39
33
34
1
37
42
2
44
12
11
6
24
23
13
PHD1
PD1 I-V AMP
RFO
RF
38
ASYI
39
50
ASYO
FOK
DATO
CLKO
XLTO
SEIN
CNIN
MDP
SQSO
SQCK
SENS
DATA
CLOK
XLAT
XLON
B+
(CD 5V)
D414
SPOA
SCOR
SBSO
EXCK
XUGF
WFCK
EMPH
EMPHI
MUTE
XTAI
74
XTAO
RFI
FOK
DATA
CLK
SENS
C.OUT
XLT
PD2 I-V AMP
PHD2
TTL
IIL
FEO
TEO
PHD
40
EI
FEI
FEO
TAO
TEI
TTL
IIL
TTL
IIL
XRST
FOCUS
ERROR
AMP
RV502
FOCUS
GAIN
RV501
FOCUS
BIAS
RF
SUMMING
AMP
TRACKING
ERROR
AMP
TRACKING PHASE
COMPENSATION
E-F BALANCE
CONTROL
Q501
FOCUS PHASE
COMPENSATION
AUTOMATIC
POWER CONTROL
Q502
E I-V
AMP
AMP
F I-V
AMP
AMP
LD
AMP
PD
AMP
FE BIAS
F
E
LD
PCMD
70
LPWM
69
NLPWM
78
RPWM
77
NRPWM
61
DOUT
BCK
LRCK
PCMDI
BCKI
LRCKI
45
47
43
54
C2PO
SLED SERVO
IC501 (2/2)
05
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC502
SYSTEM CONTROLLER
IC401 (1/2)
• SIGNAL PATH
: CD PLAY
25
MDS
26
MON
24
LOCK
27
CPU INTERFACE
D/A INTERFACE
DIGITAL FILTER &
1 BIT D/A CONVERTER
LOW-PASS
FILTER
IC301
64
62
63
XTSL
21
C4M
60
CD L-CH
GFS
X501
16.933MHz
51
49
CD R-CH
9
8
14
3
10
7
12
5
14
3
15
2
13
4
16
1
5
CN501
1
1
3
2
CN502
BH570
+
MAIN BOARD (1/3)
PUSH SWITCH BOARD
MOTOR BOARD
M
5
4
4
3
6
5
7
6
M
XRST
A
(Page 17)
DATA, CLOCK, LATCH
B
(Page 16)
DATA 40
R-LAT
DATA
CLOCK
LATCH
37
SCOR
DOOR-IN
BP
(CD TEST MANUAL)
44
62
XL
T
31
CLOCK
30
D
ATA
32
SENS
42
CK
39
SQSI
41
34
CIN
43
CD ADJ
29
X-RESET
22 18
SPOB
19
SPOC
20
7
S424
(CD LID OPEN/CLOSE DET)
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