MZ-R37
6-2. BLOCK DIAGRAM — SERVO SECTION —
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| REC DRIVE |
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| DIGITAL SERVO ENC/DEC |
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| IC901 (1/2) |
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| MODE1 | 8 |
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| ATRAC MEMORY CONTROLER |
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| DRAM |
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| MODE2 | 9 |
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| IC601 |
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OVER |
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| OVER WRITE |
| HA |
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| IC602 |
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| 63 | EFM | EFM |
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| EFMO |
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WRITE |
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| HEAD DRIVE | HB | 64 |
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| 100 |
| XWE | 45 | 3 | XWE |
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| 62 | LOGIC |
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HEAD |
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| Q741,742 |
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| XRAS 44 | 4 | XRAS |
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| XCAS 42 | 17 XCAS |
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| EFM/ |
| XOE 41 | 16 XOE |
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| ACIRC |
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| 1 |
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| ENCODER/ |
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OPTICAL |
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| RF AMP |
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| DECODER |
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| IC501 |
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| 1 |
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| RF |
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| 49 | 18 |
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| I |
| RF |
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| AGC/ | RF | 38 |
| 55 | RFI |
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| 2 |
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| 19 |
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| J |
| AMP |
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| EQ |
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| SHOCK |
| 29 |
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| VC |
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| AUX |
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| AUX |
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| 5 | A0 |
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| 33 |
| 66 | AUX1 | PROOF |
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| SW |
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| A00 | 32 |
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| VC |
| 3 | VC |
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| PEAK |
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| MEMORY |
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| PEAK/ | 37 |
| 62 | PEAK | • | 9 |
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| BOTM |
| CONTROL | 34 | • |
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| BOTTOM | 36 |
| 63 | BOTM |
| A09 | 11 |
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| ABCD |
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| ABCD |
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| 38 | A9 |
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| A |
| 4 |
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| 64 | ABCD |
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| B |
| 5 |
| AMP |
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| C |
| 6 |
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| FOCUS | FE |
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| DADT 24 |
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| D |
| 7 |
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| 34 |
| 65 | FE |
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| SDTI |
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| CONV. |
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| ERROR |
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| AI |
| AMP |
| ADFG |
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| ADDT 23 |
| SDTO |
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| 32 |
| 78 | ADFG |
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| AMP |
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| ALRCK 25 |
| LRCK |
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| AUDIO | |||||
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| TRACKING | TE |
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| ABCK 26 |
| BCK | A | |||||
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| 74 | TE |
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| SECTION | ||||||||||
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| ERROR | SE |
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| FS256 | 27 |
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| F |
| 9 | CONV. |
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| 73 | SE |
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| MCLK |
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| AMP |
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| DIGITAL |
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| (Page 27) | |||||||
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| SWDT |
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| DTRF | DIN 21 |
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| 16 |
| 82 | AUDIO |
| DIN |
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| PD |
| 10 |
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| SCLK | 17 |
| 81 | CDRF | IN |
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| XRST |
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| XLAT | 18 |
| 80 | XLRF |
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| APC |
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| APCREF | 12 |
| 83 | APCREF |
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| FO CONT | 20 |
| 79 | FO CONT |
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| XSTBY |
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| Q581 | Q581 | 16 | OSCI |
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| (1/2) | (2/2) |
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| SYSTEM | ||
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| AUTO POWER |
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| 17 OSCO |
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| CONTROL | |||||||
| VCC |
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| CONTROL | 2.8V |
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| X601 |
| FS4 | 90 |
| FS4 | |||||
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| 22.5MHz |
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| Q571 |
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| SECTION | ||
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| LDON |
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| (Page 30) | |
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| FOCUS/TRACKING COIL |
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| SLED/SPINDLE MOTOR DRIVE |
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TRACKING |
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| IC701 |
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COIL | + |
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| 29 |
| 20 |
| 86 | TFDR |
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| – |
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| DRIVE |
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| SYSTEM CONTROL |
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| 27 | 21 |
| 85 | TRDR |
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| IC801 (1/3) |
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FOCUS COIL |
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+ |
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| 8 |
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| 88 | FFDR | MNT 0 | 1 |
| 76 | T COUNT |
| MODE 1 | 34 | ||
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| DRIVE |
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| 10 | 17 |
| 89 | FRDR | MNT 1 | 2 |
| 99 | XSHOCK |
| MODE 2 | 33 | ||
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| MNT 3 | 4 |
| 63 | FOK PORT |
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| PSB 34 |
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| SWDT | 5 |
| 78 | SDO 1 |
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| SCLK | 6 |
| 79 | SCK 1 |
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SLED | SD+ |
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| 12 | DRIVE | 18 |
| 92 | SFDR | XLAT | 7 |
| 82 | XLAT |
| CLV STB 100 | |
MOTOR | SD– |
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| 14 | 19 |
| 91 | SRDR | SRDT | 8 |
| 77 | SDI 1 |
| RF SW | 8 | |
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| SPOFF |
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| SENS | 9 |
| 97 | SENSE |
| RSI | 72 |
| AOUT |
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| 4 | DRIVE | 35 |
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| XRST | 10 |
| 2 | XRST |
| SPOFF | 71 | |
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| RSI |
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AOUTB |
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| 6 | 3 |
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| SQSY | 11 |
| 80 | SQSY | XPHOTOSW | 29 | ||||
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PROTECT |
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| DQSY | 12 |
| 75 | DQSY |
| INLS | 47 | |
XINTREC SW |
| SPINDLE MOTOR DRIVE |
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| 25 | DRIVE | 22 |
| 94 | SPFD | TX | 15 |
| 4 | TX | XINTRECSW | 58 | ||||
| INLS |
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| WRPWR | 13 |
| 3 | WRPWR |
| PROTECT | 20 | ||||||||
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| IC761 |
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| FGIN | 95 |
| 61 | FGIN |
| LDON | 98 | |
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| COM |
| 6 | VM | 12 |
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| CLV STB |
| 93 | SPRD |
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| Signal path |
SPINDLE | W |
| 19 | 17 |
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| DRIVE STBY |
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| XRFSW |
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MOTOR | V |
| 20 | 14 |
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| : PLAY(DIGITAL) | ||
| U |
| 1 | FG 11 |
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| : REC(DIGITAL) | |
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| HIGH |
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| POWER |
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| 2.8V |
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| 2.8V |
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| 3 | VCC DET 4 |
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| 2.8V |
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| SWITCH |
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| IC581 |
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| Q761 |
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MD MECHANISM |
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04 |
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| XPHOTO SW |
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– 25 – | – 26 – |