Block Diagrams - Bd Section - Sony MDS-PC3 M-crew Service Manual

MDS-PC3
6-1. BLOCK DIAGRAMS – BD SECTION –
HR901
OVER WRITE HEAD
48
OPTICAL PICK-UP
(KMS-260B/J1N)
I
I
1
RF AMP
J J
2
F
B
C B
I J
D A
A A
4
B
5 I-V
C
E
AMP
6
D
DETECTOR
7
C
D
E E
8
I-V
F
F
AMP
9
AUTOMATIC
ILCC APC LD/PD
POWER CONTROL
11
AMP
Q121, 122
PD LD
LASER DIODE
LASER ON
PD PD
SWITCH 10
Q101
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC141
16
PSB
SPFD
6 OUT4F IN4R 3
M101 M M
SPRD
(SPINDLE)
8 OUT4R IN4F 4
27 OUT2F IN2F 29
M102
M
(SLED)
25 OUT2R IN2R 30
2-AXIS
DEVICE
FCS+
21 OUT1F IN1F 19
23 OUT1R IN1R 18
FCS–
TRK+
12 OUT3F IN3F 14
TRK–
10 OUT3R IN3R 15
MOD
HF MODULE
09
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC151 (1/2)
OVER WRITE
HEAD DRIVE
IC181, Q181, 182
SCTX
47 RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
RFO AGCI
RF AGC RF
46 40 38
& EQ
EQ
WBL
B.P.F.
AUX
33
PEAK
3T
37
TEMP PEAK &
BOTM
BOTTOM
36
WBL
ADFM ADIN ADFG
AT
B.P.F. 29 30 32
AMP
ABCD
ABCD
35
AMP
FOCUS FE
34
ERROR AMP
TE
26
TRACKING
SE
ERROR AMP
28
COMMAND
SERIAL/PARALLEL
V-I F0CNT
20
CONVERTER,
CONVERTER
DECODER
12 16 17 18
83 10 13 67 65 66 75 74 63 64
RECP
XRST
AUTOMATIC
POWER
CONTROL
SFDR
92
ANALOG MUX
SRDR
91
A/D CONVERTER
DIGITAL SERVO
SIGNAL
FROM CPU
FFDR
PROCESS
88
INTERFACE
FRDR
89
XLRF XLAT
80
CKRF SCLK
AUTO
81
SEQUENCER DTRF
SWDT
82
TFDR
86
DIGITAL SERVO
TRDR
85
SIGNAL PROCESSOR
IC151 (2/2)
15
TX
EFMO
100
SAMPLING
FILI
60
CONVERTER
PCO
59
PLL
CLTV
62
FILO
61
ASYO
53
INTERFACE
ASYI
54
COMPA-
RFI
RATOR
57
SUBCODE
PROCESSOR
ADIP
78 DEMODULATOR/
DECODER
CPU
INTERFACE
F0CNT SPINDLE
79
SERVO
94 93 12 11 14 9 8 5 6 7
25 27 32 48 40 38 42 50
LDON
29
47
DIG-RST
35 WR-PWR
14 MOD
12 13
9 10
VCC 1
LOADING
VREF 7
MOTOR DRIVE
IC440
VC
6
4 2
M
M103
(LOADING)
HF MODULE
SWITCH
IC102, Q131 – 134
36 36
IC151 (1/2)
ADDT
25
DATAI
22 NC
RATE
XBCKI
24 NC
LRCKI
WAVE
23 NC
SHAPER
IC600
DIN0
19
DIGITAL
DIN1
AUDIO 20 NC
DOUT
21
DADT
26
XBCK
28
LRCK
27
FS256
29 NC
OSCI
16
CLOCK
OSCO
GENERATOR
17
D-RAM
IC153
INTERNAL BUS
MONITOR
CONTROL
1 2 3 4
XOE
43 22 OE
XWE
47 3 WE
SWDT
XRAS
46 4 RAS
SCLK
XCAS
44 23 CAS
58 56
SYSTEM CONTROLLER
IC1 (1/2)
LIMIT-IN 30
UNREG
+5V
OUT-SW 51
REFERENCE
VOLTAGE SWITCH
Q440
PLAY-SW 49
11 LD-LOW
REC-P 43
SDA
5 61 SDA
EEPROM
REFLECT 67
IC195
SCL 6 66 SCL
PROTECT 68
(REFLECT/PROTECT DETECT)
HIGH REFELECT RATE/
WRITE PROTECT
LOW REFELECT RATE/
ADDT
A
(Page 37)
OPTICAL
DIGITAL IN
RECEIVER
(OPTICAL)
IC611
OPTICAL DIGITAL
TRANSCEIVER OUT
IC661
(OPTICAL)
(Page 37)
DADT, BCK, LRCK
B
BUFFER
C
IC171
(Page 37)
SWDT, SCLK
D
(Page 37)
+3.3V
D+3V +5V
REG.
IC190
S101
(LIMIT IN)
S103
(OUT SW)
S104
(PLAY SW)
S105
(REC POSITION)
• SIGNAL PATH
: PLAY (ANALOG OUT)
S102
: PLAY (DIGITAL OUT)
: REC (ANALOG IN)
: REC (DIGITAL IN)
UN-PROTECT