
6-2. BLOCK DIAGRAMS
– BD SECTION –
OVER WRITE HEAD DRIVE |
IC181 |
HR901 |
DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR EFM/ACIRC ENCODER/DECODER,
IC121
MDS-JE330
SCTX
XINIT
| OVER WRITE |
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| HEAD | 8 | • |
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HEAD |
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• Signal path | DRIVE | 11 |
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Q181,182 |
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: PB |
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: REC |
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: PB (Digital out) |
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100
EFMO
EFM,
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TX | XINIT | DIN0 | 19 |
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| DIN1 | 20 |
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| ADDT 25 | |
SHOCK |
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DIN0
DIN1
ADDT
: REC (Digital in) |
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| FILTER | |||
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| RF AMP |
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| IC101 |
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OPTICAL |
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| MORFO | MORFI RFO | AGCI |
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| RF AGC & EQ |
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| RF | 38 |
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| 1 | I |
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| J | RF AMP |
| BPF |
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| AUX |
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| DETECTOR |
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| PEAK |
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| PEAK | 37 |
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I | C | B | J |
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| BOTTOM |
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| D | A |
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| ABCD |
| ABCD |
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| 5 | B |
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| AMP |
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| C | IV AMP |
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| D |
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| FOCUS |
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| FE 34 |
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| ERROR |
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| AMP |
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| F | IV AMP |
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| ADAGC |
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| 31 | VC | |||
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| AT | BPF | 29 |
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| AMP |
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| ADFM |
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| BALANCE |
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| ADIN |
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| VC |
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| VCC |
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| VC |
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| 3 | VC | CVB |
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| ADFG 32 |
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| 15 TEMPR |
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| TRACKING | TE |
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| D101 |
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| ERROR |
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| 14 | TEMPI | TEMP |
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| AMP |
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| AMP |
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| CSLED | 27 | VC |
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| LASER ON |
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| PD |
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PD |
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| SW | 10 |
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| SERIAL |
| SWDT | 16 |
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| Q101 |
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| SCLK |
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| VICONV | PARALLEL | 17 |
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| XLAT | 18 |
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| DECODER |
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| APC | APCREF |
| EQADJ | 3TADJ WBLADJ |
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| FOCNT | 20 |
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LD |
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| ILCC |
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| APC |
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| Q162,163 |
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HF |
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| HF MODULE |
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| SW |
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MODULE |
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TRACKING |
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| SLED/SPINDLE MOTOR DRIVE |
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COIL |
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| FOCUS/TRACKING COIL DRIVE |
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| IC152 |
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FOCUS |
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| TRK– | 10 |
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| 14 | TFDR |
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COIL |
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| TRK+ | DRIVER |
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| TRDR |
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| FSC+ | 21 |
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| 18 | FRDR |
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| FSC– | DRIVER |
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| FFDR |
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| M102 | M | SLED+ | 27 |
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| 29 | SFDR |
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| SLED– | DRIVER |
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| SRDR |
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SLED MOTOR |
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| M101 | M | SPDL+ | 6 |
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| 3 | SPFD |
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| SPDL– | DRIVER |
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| SPRD |
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SPINDLE MOTOR |
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| PSB | 16 | XRST |
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ATRAC |
59
PCO
ACIRC,
ENCODER/
RESISTANT | ENCODER/ | DIGITAL | |
AUDIO | |||
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60
FILI
DECODER
MEMORY | DECODER | I/F | |
CONTROLLER | |||
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FILO
62
CLTV
DADT 26 |
57
RFI
| DOUT 21 | |
| XBCK | 28 |
| LRCK | |
SAMPLING |
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67 AUX1
RATE | CLOCK | 27 | |
GENERATOR |
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CONVERTER | OSCI | ||
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BOTM
16 |
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PEAK
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ABCD
PLL
ANALOG
MUX
SUBCODE | SQSY | 11 | |
DQSY | |||
PROCESSOR | 12 | ||
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FE
MNT3 | 4 |
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VC
MONITOR | MNT2 | 3 | |
MNT1 | |||
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TE
CONTROL | 2 |
A/D | MNT0 |
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SE
CONVERTER | 1 |
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| SENS |
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| SRDT |
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78 ADFG
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
APC | SERVO |
| CPU | SCLK | 6 |
DSP |
| I/F | SWDT | ||
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| XLAT | |
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| PWM | 3 | AUTO |
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GENERATOR |
| SEQUENCER |
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| XWE | 47 |
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DTRF
XRAS 46 |
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CKRF
XCAS | 44 | |
XOE | ||
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XLRF
43 |
79 FOCNT
SPRD | SPFD | FG IN | XRST | RECP |
93 | 94 | 95 | 10 | 13 |
APCREF FFDR FRDR TFDR TRDR SFDR SRDR | D0 | D3 | A00 | A09 |
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83 88 89 86 85 92 91 | 49 • 48 • 50 • 51 | 34 | 31 • 36 40 • 45 |
7 | 3 |
BUFFER IC123
DRAM
IC124
3 XWE
4 XRAS
17 XCAS
16 XOE
1 DQ1
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19 DQ4
6 A0
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15 |
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EEP ROM | SDA | 5 |
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IC171 | SCL | 6 |
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DETECT SW
S101, S102,
M103 M
LOADING MOTOR
DADT
DOUT
BCK
LRCK
512FS
SQSY
DQSY
MNT3
MNT2
MNT1
MNT0
SENS |
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SRDT |
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SCLK | MAIN | |
SWDT | ||
SECTION | ||
XLAT CH | ||
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(Page 31)
LDON
WRPWR
MOD
SDA
SCL
REFLECT
PROTECT
CHACK IN SW
PACK OUT SW
REC P SW
– 29 – | – 30 – |