Block Diagram -Cd Servo Section - Sony HCD-RV22 Service Manual

1. BLOCK DIAGRAM — CD SERVO SECTION —
A
6
B
7
C
8
D
9
DETECTOR
F
11 F I-V AMP
E
10 E I-V AMP
OPTICAL PICK-UP
BLOCK
LASER DIODE
AUTOMATIC
LD
POWER
1
CONTROL
Q101
PD LD
SP+
16
M102
M
SP–
(SPINDLE)
15
SD+
14
M101
M
SD–
(SLED)
13
2-AXIS
DEVICE
TD+
12
TD–
11
FD+
18
FD–
17
HCD-RV22/RV55
FREQUENCY
SELECT SWITCH
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
26
AC EQ
RF
SUM IN RFAC
RFAC
SUMMING 4 3 EQ 15
VCA
AMP
FE
FOCUS
16
ERROR AMP
FEI D/A1
17
RFDCO
RF DC
28
AMP
RFDCI D/A3
29
TE
TRACKING
18
ERROR AMP
TE_BAL FEBAL
19
SW
D/A4
12
APC LD PD
2
AMP
D/A2
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC150
MOTOR
24 27 2
DRIVE
SFDR
4
MOTOR
SRDR
DRIVE
5
TFDR
6
COIL
TRDR
DRIVE
7
FFDR
22
COIL
FRDR
DRIVE
23
20
D/A1
3 AO3
D/A2
5 AO4
D/A3
6 AO5
D/A4
9
AO6
FEBAL
2 AO2
Q102
FILTER
189 24 168 170 171 169
RFAC
173
PCMD 91
BCK 93
88
LRCK
124
164 FE C2PO
DATA 102
111
CLOK
DIGITAL SIGNAL PROCESSOR,
109
XLAT
160 RFDC DIGITAL SERVO PROCESSOR
IC505 (1/2) SENS 113
SCOR 126
96
SQSO
L SQCK 98
162 TE
L SCLK 114
163 SE GFS 121
131
L FOK
L CDXRST 105
133 137 138 140 141 142 143 81 135
ON : When the optical
S101
pick-up is inner
(LIMIT)
position
D/A
CONVERTER
IC506
DATA
DI 12
CLK
CLK 11
LD
LD 10
4
3 3
• SIGNAL PATH
TO IC505 (2/2)
L CDDATA
90 AUDIO/VIDEO
SECTION
92 L CDBCK
87
L CDLRCK
123 L CDC2PO
103 L DDAT
110
L DCLK
108 L XLAT
112 L SENS
125 L SCOR
95
L SQSO
99 SQCK
115 SCLK
120 L GFS
132
FOK
106 XRST
LOADING MOTOR DRIVE
IC701
LM-F
4 OUT1 FIN 7
M751
M
LM-R
(LOADING)
2 OUT2 RIN 9
TABLE MOTOR DRIVE
IC712
TM-F
4 OUT1 FIN 7
M741
M
TM-R
(TABLE)
2 OUT2 RIN 9
TABLE ADDRESS
TABLE
LEVEL SHIFT
SENSOR
Q731
IC731
ROTARY
TRAY
DISC TRAY
ENCODER
ADDRESS DETECT
RE701
O/C
S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
HCD-RV22/RV55
: CD PLAY
LM-F
LM-R
A MAIN
TM-F
SECTION
TM-R (Page 5)
TABLE
AUDIO/VIDEO
TRAY B
CD
O/C SECTION
(Page 4)
DATA
AUDIO/VIDEO
CLK C
CD
LD
SECTION
(Page 4)
AUDIO/VIDEO
D
SYS RST CD
SECTION
(Page 4)