Md Signal Process Block Diagram - Sony DCM-M1 Service Manual

DCM-M1

3-6. MD SIGNAL PROCESS BLOCK DIAGRAM

REC BOARD
(SEE PAGE 4-79)
HR5901
CN5901
OVER WRITE HEAD
1
OUT B
•
2
4
OUT A
•
5
OPTICAL PICK-UP BLOCK (1/2)
CN5001
I I
24 1
J J
2
25
DETECTOR
VC
G&H 30 3
VC
C B
I J
D A
E&F
E&F EF(XE)
28 8
G&H HG(XF)
21 9
A A
27 4
B B
23 5
C C
6
22
D D
26 7
SEL
31
XLDON
16
LASER
DIODE
VLPC
13
PD LD
PD-A
11
05
CLV BOARD(1/2)
(SEE PAGE 4-75)
CN5902
OVER
11, 12 8, 9 HN-H
1
WRITE
15, 16 4, 5 HN-L
HEAD
HEAD 2
13, 14 SWITCH 6, 7 HP-H
DRIVE 3
IC5901
17, 18 2, 3 HP-L
Q5902,
4
5903
19
MHEN
5
Q5901
GAIN CONTROL AMP
IC5003, Q5005
200 ns: MD1
RF AMP
100 ns: MD2
FOCUS/TRACKING
PB
48 47
ERROR AMP
MOFRO MOFRI
IC5002
RFO L. P. F.
46
FL5101, Q5101
RF AMP
40
Approx.
712 mVp-p
200 ns
PIG MODE
PB (MD1)
COMMAND
SERIAL
CENTER VOLTAGE
COMAND
VC
GENERATOR
DECODER
(FOR BIAS)
EQ
RF AGC
& EQ
WBL
PEAK & BOTTOM
HOLD
WBL
WBL
B.P.F.
AMP
AMP SLED ERROR
AMP
TRACKING
ERROR AMP
WBL
AT ADFM ADIN
B.P.F 29 30
AMP
PIG
I-V
ABCD
AMP
AMP
PIG
FOCUS ERROR
AMP
WBL
V-I
CONVERTER
EQ
IC5007
7
BUFFER 1
AUTOMATIC
6
IC5006(1/2)
POWER CONTROL
IC5005, Q5002
5
3
IC5008
5 6
7
COMPARATOR
IC5205(1/2)
3-11
MAIN BOARD (3/7)
(SEE PAGE 4-39, 43)
MD2 DIGITAL SIGNAL PROCESSOR
IC5403(1/2)
CN5803
CN5002
(1/2) (1/2)
HN-H MON2(HN-H)
43 43 5
HN-L MON3(HN-L)
44 44 6
HP-H MON4(HP-H)
45 45 7
HP-L MON5(HP-L)
46 46 8
MHEN
50 50
LASER
CLOCK
RFGAIN UP GENERATOR
RFGAIN DOWN
Approx.
1.22 Vp-p 37
A/D
: MD1
Approx.
CONVERTER
880 mVp-p
: MD2 IC5102
12
CLK
D0 1
21 VIN
l l
D7 8
XSTBY 19
PIG Approx.
27
1.54 Vp-p
: MD1
Approx.
1.86 Vp-p
200 ns: MD1
: MD2
100 ns: MD2
PB
SWDT DTRF
16
SCLK CKRF
17
XLAT XLRF
18
RF
38
A/B TRACK
PEAK
DETECT
37
BOTM IC5201, 5205(2/2)
36
Q5201, 5202
EFWBL
42
GHWBL
41
ASYO
SE
28
TE
Approx.
26 Approx.
324 mVp-p
360 mVp-p
200 ns 100 ns
PB (MD1) PB (MD2)
FS4
ADFG
32
ABCD
35
FE
Approx.
34 Approx.
200 mVp-p
280 mVp-p
AUX1
TEMP 33 200 ns
100 ns
PB (MD1) PB (MD2)
FOCNT
20
DPP
AD7
WRITE PWM I GAIN
2
1 XKSHOCK
J GAIN
TO MD SERVO TO MD SERVO
13 14
(SE PAGE 3-14) (SE PAGE 3-14)
1M FAST SRAM
IC5501
CS 5
1 – 4 • 13 – 21 • 6 • 7 • 10 • 11 •
28 12
29 – 32 22 23 26 27
• • •
56 – 62 64 – 73 46 – 50 53 – 55 74 75
• •
MAGNETIC
MAIN DATA SIGNAL
HEAD
DIN
PROCESSING
DRIVE 43
SIGNAL
GENERATOR
XBISY
44
REFCK
31
X5301 22.5792MHz
OSCI
CLOCK 29
OSCO
GENERATOR 28
EDEN
40
SYNC
EDIEN
GENERATOR
39
XSCSY
SYNC
19
ADCCK
SELECTOR
89
ADRF0 TO/FROM
l
ADIP
87
ADRF7 D OUT
42
l
80
SERIAL COMMAND MD1X2
36
INTERFACE
RECP SRDTEX
41 96
IOBUSY XCLR
17 18 32 33 34 35 100
MD1 DIGITAL SIGNAL PROCESSOR
IC5301(1/2)
10
XRST
67
VC VC
RFI
55
ASYI
52
ASYO
51
FILI
DRAM
59
PCO
58
CLTV
61
FILO CLOCK
60
GENERATOR
FS4
90
MONITOR
ADFG
78
CONTROL
SUBCODE
PROCESSOR
FOCNT
79
IC5303
11 12 14
1
4 RECP
13
2
PWM
GENERATOR
APCREF
83
3-12
SRAM CS
5
DDO
TO A/V DATA CONTROL,
VIDEO OUT
DSYNC (SE PAGE 3-7)
DCLK
320 mVp-p
70.54 MHz
REC/PB
EDEN
EDIEN
XSCSY
DDI
MD1X2
TO MD SERVO
15
(SE PAGE 3-14)
980 mVp-p
22.5792 MHz
REC/PB
16
DADT DADT
24
TO AUDIO
(SE PAGE 3-17)
LRCK LRCK
25
XBCK XBCK
26
FS256 256FS
27
X5403 70.54MHz
OSCI
16
OSCO BUFFER 512FS
17
IC5302
MNT0 MDTI
1
MNT1 MBCK
2
MNT2 MLRCK
3
6
SRDT
8
SWDT SI
5
TO A/V DATA
SCLK SCLK SV
6
CONTROL,
XLAT XLAT SV
7
VIDEO OUT
SENS SENS
(SE PAGE 3-7)
9
XINT
DQSY
SQSY
17
TO MD SERVO
(SE PAGE 3-14)
SIGNAL PATH
MD SIGNAL
MD1 MD2 MD1/MD2
REC
PB