Diagrams; Block Diagram -Servo Section - Sony MZ-R91 Service Manual

MZ-R90/R91
6-1. BLOCK DIAGRAM – SERVO Section –
HR601
OVER WRITE HEAD
OPTICAL PICK-UP BLOCK
(LCX-2R)
DETECTOR
JX
JY
JX JY
B
C B
D A
I-V
A
AMP
IX IY
IY
IX
D
C
LASER DIODE
AUTOMATIC
LD-A
POWER CONTROL
Q1001
PD LD
MON
PD S0
PD S1
2-AXIS
DEVICE
TRK+
TRK–
FCS+
FCS–
M602
M
(SLED)
SLED VOLTAGE
MONITOR
IC604
M601
(SPINDLE)
U
W V
05
SECTION 6

DIAGRAMS

OVER WRITE
HEAD DRIVE
Q601, 602
RF AMP, FOCUS/TRACKING ERROR AMP
IC501
JX
10
JY RF
11 RF 33
IY
AMP
8
PEAK
IX
29
9 PEAK/
BOTM
BOTM
28
ABCD ABCD
41
B
AMP
14
ADFG
A
12 21
ADIP
D
6
FE
C FOCUS
5 42
ERROR AMP
TE
1
TRACKING
OFTRK
ERROR AMP
26
TON
S-MON
S-MONITOR 43
WPPLPF
PD-O TPP/WPP 3
20 APC
SERIAL
INTERFACE
PD-NI
18
19 23 24 25
FO3 FI3
30 21
TRACKING
RO3 RI3
COIL DRIVE
32 22
FO1 FI1
7 16
FOCUS
RO1 RI1
COIL DRIVE
5 15
FO2 FI2
11 14
RO2 RI2
9 13
SLED
PWM24
MOTOR
25
FO4 DRIVE FI4
26 23
RO4
RI4
28 24
SPINDLE SERVO DRIVE
SWITCH
FOCUS/TRACKING COIL DRIVE,
IC504, 505
SPINDLE/SLED MOTOR DRIVE
IC601 PWMI
3 2
UO UI
46 2 5
CPUI
40
SPINDLE
VO VI
44 MOTOR 1
CPVI
DRIVE
39
WO WI
42 48
CPWI
38
2
SPINDLE VOLTAGE
BIAS
MONITOR
5
34 35 36 17
– 23 –
OVER WRITE HEAD DRIVE
IC603
HB
10
EFM EFM
14
LOGIC
HA
11
CK
19
OSC
B+ SWITCH
VIN 24
Q603, 604
C1L
21
VGH
SAW. CHARGE
18 22
GEN.
PUMP
C1H
23
MODE1
MODE1
17
CONTROL
MODE2 MODE2
LOGIC
16
LOW-PASS
FILTER SWITCH
Q501
12
XRST
106 APCREF
PEAK 84
110 TFDR
BOTM 85
TRDR ABCD
109 86
DIGITAL SERVO
ADFG 99
SIGNAL
111 FFDR FE 87
PROCESSOR
TE 96
IC502 (2/2)
112 FRDR
133 SLDU RECP 15
134 SLDV
SLVS 138
141 SLCU
SLCV 139
135 SLDW
140 SLCW
IC504
1
7
124 SPVS
6 127 SPDU SPCU 130
128 SPDV SPCV 131
3
SPDW SPCW 132
129
IC505
1
7
6
3
123 EFMO
113 FS4
DIGITAL SIGNAL PROCESSOR,
78 RFI
EFM/ACIRC ENCODER/DECODER,
OVER WRITE
SHOCK PROOF MEMORY CONTROLLER,
74 ASYO
HEAD B+
ATRAC ENCODER/DECODER,
16M BIT D-RAM
75 ASYI
IC502 (1/2)
FILI
81
PCO
80
FILTER
83 CLTV
FILO
82
4 3 5 14 13 16 11 8 17
68
XIC RST OFTRK 2
79 S MON
XSHOCK
51
FOK 52
57 REC WBL SW
DQSY 54
SQSY 53
XINT 55
SENSE 6
27 MODE1
XLAT 8
28 MODE2
TX
5
29 MODE3
XCS DSP 9
SI0 11
SO0 12
102 SSB DATA SCK0 13
103 SSB CLK
36 PD S0
38 PD S1
SYSTEM CONTROLLER
D603
DC/DC
IC801 (1/3)
BATT B+ CONVERTER
IC605, Q607
B+ SWITCH
VC B+ 1
Q605
35 SLD MON 1
HD CON 2 31 8
7 WRPWR
HD CON 1 30 7
49 SPDL START SW
67 SPDL PWM
24 CLV U
25 CLV V
26 CLV W
– 24 –
ANALOG REC
A
ADDT 41
(Page 25)
DIGITAL REC
B
DIN1 33
(Page 25)
DADT, XBCK,
LRCK, FS256
C
DADT 42
XBCK 45
(Page 25)
LRCK 43
FS256 46
OSCO 20
OSCI 19
X501
22.5792MHz
32 10 6 7
RESET
D
(Page 25)
SWDT
SWDT, SCLK
SCLK
E
(Page 27)
SRDT
SWDT
SRDT, SWDT,
SCLK SCLK
F
(Page 25)
OVER WRITE HEAD
UP/DOWM MOTOR DRIVE
IC602
VMC
2
VMAB
13
C2H
5
C2L
6
VC
CHARGE
LVDET
C1H
PUMP
12
C1L
11
IN2 OUTB
CONTROL MOTOR 14
IN1 OUTA
LOGIC DRIVE
M M
3
M603
OVER WRITE
HEAD UP/DOWM
• SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
: REC (DIGITAL IN)
OE
G
(Page 27)