Read Sony HCD-GX750 / HCD-RG551 / HCD-RX550 / MHC-GX750 / MHC-RG551S Service Manual online
27
27
HCD-GX750/RG551/RX550
5-2. BLOCK DIAGRAM — CD SECTION —
(Page 28)
(Page 29)
(Page 28)
OPTICAL PICK-UP
BLOCK
(KSM-215DCP)
LD
DRIVER
Q10
+1.7V
+3.3V
LD
GND
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
IC251
S101
(LIMIT)
X171
16.9344MHz
+3.3V
SL/SP MOTOR
DRIVER
IC101
RF AMP
16
7
15
17
18
VR
PD
19
20
21
22
5
30
3
24
MUTE
CH2OUT-F
CH1FIN
CH1RIN
CH2FIN
CH3FIN
OPIN+
CH2OUT-R
CH1OUT-R
CH1OUT-F
CH4OUT-R
CH4OUT-F
CH3OUT-F
CH3OUT-R
M
M
M101
(SPINDLE)
M102
(SLED)
VC
VCC
A
B
C
D
E
F
DETECTOR
A
B
E
19
F
20
LD
36
PD
37
TFDR
11
SSTP
7
FFDR
13
SFDR
9
MPD
6
95
XTACN
100
XRST
102
DATA
104
XLAT
105
CLOCK
86
AOUT2
81
AOUT1
71
DOUT
61
PCMDI
62
LRCKI
63
LRCK
65
PCMD
DIGITAL
SIGNAL PROCESSOR
IC301
21
40
SDO0
11
LRCKIA
16
SFSY/LRCKIB
19
SDIO
14
77 XTAO
78 XTAI
55
VDD
VDD
VDDM
26
27
C
28
D
29
107
SENS
XTACN
XRST
DATA
XLT
CLOCK
SENS
TRDR
12
29
CH3RIN
SRDR
10
CH2RIN
FRDR
14
66
BCK
60
BCKI
BCKIA
15
SBSY/BCKIB
18
6
3.3V
IC303
8
5
1
3
STANBY
36
PO11/BUCK/AD1
8
MIACK
7
MICK
6
MIDIO
4
MICS
5
MILP
2
RESET
115
SCOR
SCOR
REG
IC303
MP3-DO
MP3-REQ
MP3-ACK
MP3-ACK
MP3-CLK
MP3-DI
MP3-LP
MP3-CS
MP3-RST
MP-3STB
SCOR
SENS
CD-CLOCK
XLT(CD-LAT)
CD-DATA
XRST
XTCN
SCOR
SENS
CLOCK
XLT
DATA
XRST
XTACN
CD-L
CD-R
DOUT
A
PANEL
SECTION
B
MAIN
SECTION
TABLE SENSOR
IC731
LD MOTOR DRIVER
IC701
TBL MOTOR DRIVER
IC712
4
2
9
7
RIN
FIN
OUT1
OUT2
4
2
9
7
RIN
FIN
OUT1
OUT2
D
MAIN
SECTION
LM-R
LM-F
TM-R
TM-F
TBL ADDRESS SENS
E-1
E-2
E-3
OPEN SW
M751
(LOADING)
M741
(TABLE)
RE701
S751
(OPEN)
ROTARY
ENCODER
E-3
E-2
E-1
TBL ADDRESS
SENSE SWITCH
Q731
M
M
D+3.3V
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
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