Block Diagram - Cd Servo Section - Sony HCD-GX255 Service Manual

6-1. BLOCK DIAGRAM – CD SERVO Section –
DETECTOR
CD +3V
A
A
26
B
B
27
C
C
28
D
D
29
F
F
20
E
E
19
OPTICAL PICK-UP
BLOCK
(KSM-215DCP)
LASER DIODE
AUTOMATIC
LD
POWER
36
CONTROL
Q10
PD LD
MOTOR/COIL DRIVE
IC251 (EXCEPT MX)
IC251 (MX)
CH4OUTF
16
M101 MOTOR
M
CH4OUTF
(SPINDLE) DRIVE
15
CH3OUTF
17
MOTOR
M102
M
CH3OUTR
DRIVE
(SLED)
18
2-AXIS
DEVICE
CH1OUTF
14
COIL
CH1OUTR
DRIVE
13
CH2OUTF
12
COIL
CH2OUTR
DRIVE
11
MUTE
20
(MX)
(EXCEPT MX)
HCD-GX255/RG170/RG470
SECTION 6
DIAGRAMS
CD DSP
IC101 (1/2) (EXCEPT MX)
IC101 (1/2) (MX)
AC_ EQ_
RF
SUM IN
RFAC RFACO
SUMMING 34 35 EQ 41
VCA
AMP
FOCUS
FEO
ERROR 24
AMP
TEO
TRACKING
22
ERROR AMP
PD
APC LD
37
AMP
CH4IN OPOUT OPIN+
24 27 2
21 23
CD DSP
IC101 (2/2) (EXCEPT MX)
IC101 (2/2) (MX)
CH3FIN
23
A/D
CH3RIN
CONVERTER
21
SFDR
FOCUS/ MIRR,
9
DFCT, FOK
TRACKING/SLED
SRDR
10 DETECTOR
SERVO DSP
CH1FIN TFDR
4
11
TRDR
CH1RIN
5 12
SERVO
FFDR INTERFACE
13
FRDR
14
CH2FIN SERVO AUTO
5
SEQUENCER
CH2RIN
7
TO CPU INTERFACE
7
S101
(LIMIT)
SWITCHING
IC501
FILTER
51 53 50 52 112
RFACI
EFM
ASYMMETRY
42 DIGITAL PLL
CORRECTOR DEMODULATOR
ASYI
45
ASYO
46
TO SERVO AUTO
SUBCODE
SEQUENCER
PROCESSOR
DIGITAL
CLV
CPU INTERFACE
PROCESSOR
6 100 102 105 104 107 115 98 99 96 97 110 111 113 68
31 33 45 32 19
I-MP3-DI 29
O-MP3-DATA 30
O-MP3-CLK 28
O-MP3-CS 39
I-MP3-ACK 40
I-MP3-REQ 43
O-MP3-LP 44
O-MP3-RESET 38
O-MP3-STB 42
O-XTCN 34
SYSTEM CONTROLLER
IC901 (1/4) (SUFFIX-11)
IC901 (1/4) (SUFFIX-12)
O-LM-F 49
O-LM-R 48
FOK
3
MIRR
1
DFCT
2
O-TM-F 51
COUT
O-TM-R 50
119
SCLK
108
I-CD-NUMBER-SENS 73
I-E-1 – I-E-3
I-OPEN-SW 56
47 O-XRST
21 21
117 93
XTSL
XTAO
77
CLOCK
XTAI
GENERATOR
78
XTACN
95
AOUT1
81
D/A
CONVERTER
AOUT2
32K
D/A 86
RAM
DIGITAL
INTERFACE
ERROR
CORRECTOR
SELECTOR
63 66 65 62 60 61
19 18 16 15 14 11
6 MIDIO
7 MICK
4 MICS
8 MIACK
36 PO11/BUCK/AD14
5 MILP
MP3 DECODER
2 RESET
IC301 (EXCEPT MX)
3 STANDBY
IC301 (MX)
LOADING MOTOR DRIVE
IC701
M751
7 FIN OUT1 4 M
(LOADING)
9 RIN OUT2 2
TABLE MOTOR DRIVE
IC712
• Abbreviation
MX : Mexican model
M741
7 FIN OUT1 4
M
(TABLE)
9 RIN OUT2 2
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
TABLE ADDRESS
LEVEL SHIFT
SENSOR
Q731
IC731 : VIDEO
ROTARY
DISC TRAY
ENCODER
ADDRESS DETECT
S711
S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
HCD-GX255/RG170/RG470
X171
16.9344MHz
CD-L
A (Page 22)
R-CH
SCOR, SBSO,
EXCK, WFCK
B (Page 22)