Diagrams; Block Diagram - Servo Section - Sony MZ-R909 Service Manual

MZ-R909
SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – SERVO Section –
HR601
OVER
OPTICAL PICK-UP BLOCK
WRITE
(LCX-4R)
HEAD
IY
–
+
IX
–
+
JX
–
JX JY JX
+
JY
–
+
IX IY IX
A
–
+
B
A B C D
–
+
C
–
+
D
–
+
MON
–
+
AUTOMATIC
LD-A
POWER
LD
CONTROL
Q501
S0
S1
2-AXIS
DEVICE
TRK+ TRK+
(TRACKING)
(FOCUS)
TRK– TRK–
FCS+ FCS+
FCS– FCS–
OVER WRITE
HEAD DRIVE
Q604, 605
M603
OVER WRITE
RF AMP, FOCUS/TRACKING ERROR AMP
HEAD
IC501
UP/DOWN
4 VREF
IY
RF OUT
8
33 37 RFI
IX
9
PEAK
JX
29 44 PEAK
10 PEAK
RF AMP, BOTM
JY
/BOTM 28 45 BOTM
11
FOCUS
A
12 ERROR, ABCD
B
41 46 ABCD
TRACKING
14
FE
C ERROR
42 47 FE
5
D
TE
6
1 56 TE
A-C
ADIP IN 44
13
TPP/WPP
D-C
ADFG 21 74 ADFG
7
PD-NI PD-I
18 APC 19 78 APCREF
VC 31 49 VC
12 VREF MON
26
OFTRK 217 OFTRK
PD-O
XRST
20
25 221 XRF RST
SERIAL
INTERFACE
SBUS
23 160 SSB DATA
SCK
24 161 SSB CLK
S-MON
S-MONITER 43 9 S MON
194 PD S0
195 PD S1
U
M602
W V
(SLED)
SLD MON U
SLD MON V
SLD MON W
U
M601
W V
(SPINDLE)
OVER WRITE HEAD DRIVE
IC601 (1/2)
HB
35
EFM
PRE DRIVER
HA
33
OUTA
41
H-BRIDGE
OUTB
PRE DRIVER
38
M M
CHARGE
PUMP 1
SYSTEM CONTROL (1/2)
CHARGE
25
VREF
PUMP 2
1 2 3 5 6
199 198 197 201 200
SYSTEM CONTROLLER,
DIGITAL SIGNAL PROCESSOR,
16M BIT D-RAM
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
IC551
TRK+ FO2
30
TRACKING
TRK– RO2
COIL DRIVE
32
FCS+ FO1
13 FOCUS
FCS– RO1
COIL DRIVE
11
UO2
35
CPUI2
25
SLED
VO2
37
MOTOR
CPVI2
DRIVE
24
WO2
39
CPWI2
23
COM2
26
CPUO2
45
CPVO2 SLED VOLTAGE
46
MONITER
CPWO2
47
UO1
8
CPUI1
18
SPINDLE
VO1
6
MOTOR
CPVI1
DRIVE
19
WO1
4
CPWI1
20
COM1
17
SPINDLE
VOLTAGE MONITOR
52 53 54
34 34
EFM
7
CLK
4
VRECIN2
VRECO
37
VRECIN1 B+
42
C1H
28 • SIGNAL PATH
C1L
27
C2H
31
C2L
30
105
DIN1 62
ADDT 68
IC801 (1/3)
AOUTL 29
AOUTR 30
FI2
28 81 TFDR
RI2
27 80 TRDR
FI1
15 82 FFDR
RI1
16 83 FRDR
PWM2
44 97 SFDR
233 SLD MON
UI2
43 96 SLDR
SLCU 100
VI2 SLCV 101
42 98 SLDV
SLCW 102
WI2
41 99 SLDW
SPINDLE
166 SPDL AUX PWM
SERVO
PWM1
55 DRIVE
SWITCH
88 SPFD/SPVS/PWM3
IC805
223 SPDL MON
UI1
56 87 SPDU
SPCU 93
VI1
1 89 SPDV
SPCV 94
WI1
2 90 SPDW
SPCW 95
OE
BIAS 48 220 XRST MTR DRV
CLK
D
(Page 36)
: PLAYBACK
: REC (ANALOG IN)
: REC (DIGITAL IN)
DIN1
A (Page 35)
ADDT
B
(Page 35)
AOUTL,
AOUTL
AOUTR
C (Page 35)
AOUTR
SLD MON U
SLD MON V
SLD MON W
CLV MON U
CLV MON V
CLV MON W