Diagrams; Block Diagram - Md Servo Section - Sony MXD-D5C Service Manual

MXD-D5C
7-1. BLOCK DIAGRAM – MD SERVO Section –
HR901
OVER WRITE HEAD
I I
1
J J
2
F
B
C B
I J
D A
A
A
4
B
5
E C
6
DETECTOR D
7
C
D
E
E
8
F F
9
LASER DIODE
AUTOMATIC
APC
ILCC
POWER
11
CONTROL
Q121, 122
PD LD
LASER ON
PD
PD
SWITCH 10
Q101
OPTICAL PICK-UP BLOCK
(KMS-262A/J1N)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC141
PSB
6 OUT4F IN4R
M101
M
(SPINDLE)
8 OUT4R IN4F
27 OUT2F IN2F
M102
M
(SLED)
25 OUT2R IN2R
2-AXIS
DEVICE
FCS+
21 OUT1F IN1F
23 OUT1R IN1R
FCS–
TRK+
12 OUT3F IN3F
TRK–
10 OUT3R IN3R
MOD
HF MODULE
05
SECTION 7

DIAGRAMS

OVER WRITE
HEAD DRIVE
IC181, Q181, 182
SCTX
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
48 47
RFO AGCI RF
RF AGC
RF AMP 46 40 38
& EQ
EQ
AUX
B.P.F.
33
WBL
3T
TEMP
PEAK
37
PEAK &
BOTM
BOTTOM
36
WBL
ADFM ADIN
ADFG
AT
B.P.F. 29 30 32
AMP
I-V
ABCD
ABCD
AMP 35
AMP
FE
FOCUS
34
ERROR AMP
TE
26
I-V TRACKING
SE
AMP ERROR AMP
28
COMMAND
LD/PD
AMP
SERIAL/
PARALLEL
V-I CONVERTER,
CONVERTER DECODER
12 20 16 17 18
16
SPFD
3
SPRD
13 67 65 66 75
4
RECP
APCREF AUTOMATIC
83
POWER
CONTROL
SFDR ANALOG MUX
29 92
SRDR
30 91
A/D CONVERTER
DIGITAL
SERVO
SIGNAL
FROM CPU
PROCESS
FFDR
INTERFACE
19 88
FRDR
18 89
AUTO
SEQUENCER
TFDR
14 86
DIGITAL SERVO
TRDR
15 85
SIGNAL PROCESSOR
IC151 (2/2)
TX
15
EFMO
100
FILI
60
PCO
59
PLL
CLTV
62
FILO
61
ASYO
53
ASYI
54
COMPA-
RFI
RATOR
57
SUBCODE
ADIP PROCESSOR
78 DEMODULATOR/
DECODER
F0CNT SPINDLE
INTERFACE
79
SERVO
94 93 10 12 11 14 9 8
25 27 32 48 40
COMPARATOR
IC102
133 IOP
29 LDON
47 DIG-RST
35 WRPWR
MOD
14
12 13
74 63 64
5 6
IN1 IN2
LOADING
MOTOR DRIVE
IC400
OUT1 OUT2
2 10
M
M103
(LOADING)
XLRF XLAT
80
CKRF SCLK
81
DTRF SWDT
82
HF MODULE
SWITCH
Q131 – 134
48 48
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
ADDT
IC151 (1/2)
25
DATAI
SAMPLING 22
RATE
XBCKI
BCK
CONVERTER 24
LRCKI
LRCK
23
WAVE
SHAPER
DIN0
IC302
19
DIGITAL
DIN1
AUDIO
20
DOUT
INTERFACE
21
DADT
26
28 27 29
OSCI
16
CLOCK
OSCO
GENERATOR
17
INTERNAL BUS
CPU MONITOR
CONTROL
5 6 7 1 2 3 4
XOE
43
XWE
47
XRAS
46
XCAS
44
38 42 50 58 56
SYSTEM CONTROLLER LIMIT-IN
(MD MECHANISM CONTROLLER)
IC801 (1/2)
REC-SW
OUT-SW
+5V
REFERENCE
VZ
4 VOLTAGE SWITCH
Q400, 401
PLAY-SW 49
11 LD-LOW
REFLECT
SW
EEPROM
PROTECT
IC195
SW
SDA 5 61 SDA
SCL 6 66 SCL
WP 7 60 EEP-WP
ADDT
A (Page 49)
LRCK, BCK
C (Page 49)
DIN0
F (Page 49)
OPTICAL DIGITAL
RECEIVER OPTICAL
IC303 IN
DOUT
B (Page 49)
• SIGNAL PATH
: CD PLAY
: MD PLAY (ANALOG OUT)
: MD REC (ANALOG IN)
X171
: MD REC (DIGITAL IN)
90.3168MHz
D-RAM
IC152
22 OE
4 WE
5 RAS
CAS
23
S101
(LIMIT IN)
S101
ON: When the optical pick-up is
30
inner position.
S105
(REC POSITION)
S105
ON: When the over write head is
43
recording position.
S103
(PACK OUT)
S103
ON: When the eject slider is
51
open position.
S104
(PLAY POSITION)
S104
ON: When the eject slider is
playback position.
S102
S102-1
–1 (REFLECT RATE DETECT)
67
ON: When the high reflection
rate disc detect.
68
–2
S102-2
(PROTECT DETECT)
ON: When the rec-proof claw is
close. (un-protect)