Block Diagram - Cd Servo Section - Sony HCD-C5 Service Manual

HCD-C5
6-2. BLOCK DIAGRAM – CD SERVO SECTION –
OPTICAL PICK-UP
BLOCK
OPTIMA-720L1E
1/2VCC
9
VCC
+5V
8
VA
4
VB
6
VC
2
VE
3
VF
7
Q101
LD LD
10
DRIVE
VCC
GND
5
RV101
MD
1
VR
F+
FOCUS
COIL
F-
TR+
TRACKING
COIL
TR-
SD+
M903
FEED M
MOTOR
SD-
SP+
M904
SPINDLE M
MOTOR SP-
DIGITAL
OPTICAL
+5V
Q102
SWITCH
DIGITAL SERVO,
IC103
DIGITAL SIGNAL PROCESSOR
RF AMP
27 VC
RFC 26
25 VFC
7 B RFAC 15 50 RFAC
6 A RFDCO 28 43 RFDC
8 C
FE 16 39 FE
9 D
41
TE 18 TE
10 E
40 SE
11 F
1 LD SW 12
FEI
17
19 TE_BAL
RFDCI 29
26 SSTP
2 PD
S5
IC102 LIMIT
MOTOR/COIL DRIVER
IN
SWITCH
14 VO1(+) OPIN1(+) 2 33 FFDR
13 VO1(-) OPIN1(-) 3 34 FRDR
12 VO2(+) OPIN2(+) 5 31 TFDR
11 VO2(-) OPIN(2-) 6 32 TRDR
15 VO4(+) OPIN4(+) 27 29 SFDR
16 30
VO4(-) OPIN4(-) 26 SRDR
18 25
VO3(-) OPIN3(-) 23 MDP
17
VO3(+)
IC221
DIGITAL
OPTICAL
IN
INPUT
1
2
IC101
D OUT 64
CTRL1(1-2)
XTSL 69
DATA
DATA 4
CLK
CLOK 6
XLT
XLAT 5
SQSO
SQSO 76
SENS
SENS 7
SCLK
SCLK 8
SQCK 77
SCOR
SCOR 15
XRST
XRST 2
XTAI 71
X201
S1 (Disc IN/8cm Disc Detect)
33.8688MHz
XTAO 72
S2 (12cm Disc/12cm Disc Eject End Detect)
S3 (Disc Existence, Chacking, Releasing Detect)
S4 (8cm Disc Eject End Detect)
LDON
PWM1
PWM2
PWM3
46 46
• Signal Path
: CD (DIGITAL)
:DIGITAL IN (OPTICAL)
IC222
SELECTOR
5
6
4
9
3
DIN, OPTO
8
A
SERVO
10
SECTION
13
(Page 47)
11
12
OPTO
IC501(1/2)
MASTER CONTROL
18 CTRL1
7 CXD-DATA
8 CXD-CLK
11 CXD-XLT
15 SUBQ
14 SENSE
17 SCLK
95 SCOR
29 BDRST
30 SW1
31 SW2
32
SW3
33 SW4
LODPOS 27
LODNEG 26
13 LDON
12
PWM1
19
PWM2
20 PWM3
MD
IC1102
LOADING MOTOR DRIVER
7 FIN OUT1 4
M902
M
(LOADING)
OUT2
9 RIN 2
Q103,D101
+3.3V
+5V
+3.3V
REG