MDS-JE770
6-7. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – • See page 51 for IC Block Diagrams.
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| IC440 |
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| M54641L |
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| LOADING DRIVER |
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| R441 |
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| 22k |
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1 |
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| R442 | Q440,445 |
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| Q440 |
| 15k |
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C442 |
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| REFERENCE |
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0.01 |
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2 |
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| VOLTAGE |
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3 |
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| C441 |
| R443 | SWITCH |
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| 100 |
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| 22k |
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4 |
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| 16V |
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| Q445 |
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5 |
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| D433 | R432 | R431 |
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| D431 |
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| 680 | 100 |
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| C432 | R433 | C431 |
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| 220 |
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| 22 |
| 33 |
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| D432 |
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| 25V |
| 25V |
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| R434 |
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| 22k |
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| D409 |
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| IC401 |
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6 |
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| BA033T |
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| D408 |
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7 |
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| +3.3V |
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| IC406 |
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| M62016L |
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| REGULATOR |
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| D406 |
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| D401 |
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| RESET |
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| D402 |
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| R406 |
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| 220 |
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| C401 |
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9 | R407 |
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| CN406 |
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| 10000 |
| D403 |
| D404 | C932 |
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| C404 |
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| 16V |
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| C931 | |||||||
| 10k |
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| 2P |
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| 0.1 | ||||||
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| 100 |
| C402 |
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| 0.1 |
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| 10V |
| 0.1 |
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| C406 | C405 |
| BT406 |
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| ML1220 |
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| 0.33 |
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| 0.01 |
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| 50V |
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| D411 |
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8 |
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| D412 |
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| D461 |
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| C930 |
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| IC411 |
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| 0.1 | |||
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| M5F7805L |
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| C412 |
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| 0.1 |
| C411 |
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| C461 |
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| +5V |
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| 10000 | FB465 |
| 1000 |
| D462 |
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| C941 |
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| C416 |
| REGULATOR |
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| 16V | 0∝H |
| 35V |
| 0.1 |
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| 1000 |
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| FB460 |
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| C942 |
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| 6.3V |
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| D466 |
| 0.1 |
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| C466 | 0∝H |
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| 1000 |
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| 35V |
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| R423 | 100k |
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| D467 |
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| FB410 | JW |
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MAIN |
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BOARD |
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(1/2) |
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(Page43) |
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| R424 |
| C425 | R421 |
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| R425 | 220 |
| 22k |
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| C422 | C421 |
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| 220 |
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| 47 |
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| 0.1 | 0.1 |
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| 50V |
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10 |
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11 |
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| R420 |
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| C423 |
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12 |
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| JUMPER |
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| 100 |
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| D421 |
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| C424 |
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| 63V |
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| D422 |
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| 0.1 |
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| RD4.7EB2 |
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| IC421 |
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| M5293L |
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13 |
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14 |
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| REGULATOR |
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15 |
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| JW451 |
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| JUMPER |
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| R911 |
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16 |
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| 2.2k |
| Q911 | |
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| RELAY |
17 |
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| R912 |
| DRIVE |
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| 47k |
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| JW452 |
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| JUMPER |
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18 |
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19 |
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| R21 | R821 |
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| R22 | R822 |
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20 | 10k |
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| 10k |
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10k |
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| 10k |
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| R824 |
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KB.DATA |
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| 4.7k |
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KB.CLK |
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| Q35 |
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| CN830 |
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| L831 |
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| BUFFER |
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| 6P |
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| JUMPER |
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| R827 |
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Q21 |
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| +5V |
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| 4.7k |
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| Q822 |
| R823 |
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| IIC/KB CLK |
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BUFFER |
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| 10k |
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| Q821 |
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| IIC/KB DATA |
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| R826 |
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| BUFFER |
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| BUFFER |
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| GND |
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| 10k |
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| L834 |
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| IIC BUSY |
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| KB |
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| JUMPER |
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| BOARD |
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| IIC POWER |
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| CN2780 |
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| FB832 | 33FB8 |
| 835FB | 836FB |
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KB.CTL |
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| (Page47) |
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| Q34 |
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| R828 |
| KEYBOARD |
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|
|
|
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|
|
|
|
|
|
| |
|
| 10k |
| OFF SWITCH |
| R825 |
|
|
|
|
|
|
|
|
|
|
| ||
|
|
|
|
| 10k |
|
|
| REW PO |
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
| LKC | TAAD | SYUB |
|
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|
|
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| |
|
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|
|
|
| IIC | IIC | IIC | IIC |
|
|
|
|
|
|
|
|
|
|
|
|
|
| R851 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| R855 | 5.6k | D851 |
|
| R856 | C853 |
|
|
|
|
|
| J851 |
|
|
|
|
|
| JUMPER |
|
| JUMPER | 0.1 |
|
|
|
|
|
| |||
21 |
|
|
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|
|
| CONTROL | |||||
|
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| ||
|
|
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| R852 |
|
|
|
|
|
|
|
|
|
|
|
| A1 |
|
|
|
|
|
| 4.7k |
|
| Q851 |
|
|
|
|
|
|
|
|
| |
22 |
|
|
|
|
|
|
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| ||
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| |||
|
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|
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| C851 |
| A1 I/O |
|
|
|
|
|
|
|
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|
|
|
|
|
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|
|
| R853 |
|
|
|
|
|
|
|
|
|
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| |
|
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|
|
| 0.1 |
|
|
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|
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| |
|
|
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|
|
| 10k | R854 |
|
|
|
|
|
|
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|
|
|
|
| C852 | C855 | C854 |
|
|
|
|
|
|
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| |
|
|
|
|
|
|
|
| 0.1 | 10 | 0.1 | 0.1 |
|
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| (CHASSIS) |
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| 44 |
| |
CN400 11
5 | PT |
| BOARD |
| CN921 |
| (Page49) |
1 |
|
C940 |
|
0.1 |
|
EP940
EARTH
PLATE
(CHASSIS)
44
