1 EESchema Schematic File Version 4 2 LIBS:AcornElectronMainboard-cache 3 EELAYER 26 0 4 EELAYER END 5 $Descr A4 11693 8268 6 encoding utf-8 7 Sheet 3 11 8 Title "" 9 Date "" 10 Rev "" 11 Comp "" 12 Comment1 "" 13 Comment2 "" 14 Comment3 "" 15 Comment4 "" 16 $EndDescr 17 $Comp 18 L DRAM:4164 IC4 19 U 1 1 61D7F23A 20 P 2100 2250 21 F 0 "IC4" H 2100 2825 50 0000 C CNN 22 F 1 "4164" H 2100 2734 50 0000 C CNN 23 F 2 "" H 2050 2250 50 0001 C CNN 24 F 3 "" H 2050 2250 50 0001 C CNN 25 1 2100 2250 26 1 0 0 -1 27 $EndComp 28 $Comp 29 L DRAM:4164 IC5 30 U 1 1 61D7F241 31 P 3900 2250 32 F 0 "IC5" H 3900 2825 50 0000 C CNN 33 F 1 "4164" H 3900 2734 50 0000 C CNN 34 F 2 "" H 3850 2250 50 0001 C CNN 35 F 3 "" H 3850 2250 50 0001 C CNN 36 1 3900 2250 37 1 0 0 -1 38 $EndComp 39 $Comp 40 L DRAM:4164 IC6 41 U 1 1 61D7F248 42 P 5700 2250 43 F 0 "IC6" H 5700 2825 50 0000 C CNN 44 F 1 "4164" H 5700 2734 50 0000 C CNN 45 F 2 "" H 5650 2250 50 0001 C CNN 46 F 3 "" H 5650 2250 50 0001 C CNN 47 1 5700 2250 48 1 0 0 -1 49 $EndComp 50 $Comp 51 L DRAM:4164 IC7 52 U 1 1 61D7F24F 53 P 7500 2250 54 F 0 "IC7" H 7500 2825 50 0000 C CNN 55 F 1 "4164" H 7500 2734 50 0000 C CNN 56 F 2 "" H 7450 2250 50 0001 C CNN 57 F 3 "" H 7450 2250 50 0001 C CNN 58 1 7500 2250 59 1 0 0 -1 60 $EndComp 61 Entry Wire Line 62 1500 2400 1600 2300 63 Connection ~ 3000 3500 64 Wire Bus Line 65 3000 3500 1500 3500 66 Entry Wire Line 67 2900 2200 3000 2300 68 Connection ~ 3300 3500 69 Wire Bus Line 70 3300 3500 3000 3500 71 Entry Wire Line 72 3300 2400 3400 2300 73 Entry Wire Line 74 4700 2200 4800 2300 75 Entry Wire Line 76 5100 2400 5200 2300 77 Entry Wire Line 78 6500 2200 6600 2300 79 Entry Wire Line 80 6900 2400 7000 2300 81 Entry Wire Line 82 8300 2200 8400 2300 83 Wire Wire Line 84 7850 2200 8300 2200 85 Wire Wire Line 86 7850 2300 8300 2300 87 Wire Wire Line 88 7850 2400 8300 2400 89 Wire Wire Line 90 7850 2500 8300 2500 91 Wire Wire Line 92 7850 2600 8300 2600 93 Wire Wire Line 94 7000 2300 7150 2300 95 Wire Wire Line 96 7000 2400 7150 2400 97 Wire Wire Line 98 7000 2500 7150 2500 99 Wire Wire Line 100 1600 2300 1750 2300 101 Wire Wire Line 102 1600 2400 1750 2400 103 Wire Wire Line 104 1600 2500 1750 2500 105 Wire Wire Line 106 2450 2200 2900 2200 107 Wire Wire Line 108 2450 2300 2900 2300 109 Wire Wire Line 110 2450 2400 2900 2400 111 Wire Wire Line 112 2450 2500 2900 2500 113 Wire Wire Line 114 2450 2600 2900 2600 115 Wire Wire Line 116 3400 2300 3550 2300 117 Wire Wire Line 118 3400 2400 3550 2400 119 Wire Wire Line 120 3400 2500 3550 2500 121 Wire Wire Line 122 4250 2200 4700 2200 123 Wire Wire Line 124 4250 2300 4700 2300 125 Wire Wire Line 126 4250 2400 4700 2400 127 Wire Wire Line 128 4250 2500 4700 2500 129 Wire Wire Line 130 4250 2600 4700 2600 131 Wire Wire Line 132 5200 2300 5350 2300 133 Wire Wire Line 134 5200 2400 5350 2400 135 Wire Wire Line 136 5200 2500 5350 2500 137 Wire Wire Line 138 6050 2200 6500 2200 139 Wire Wire Line 140 6050 2300 6500 2300 141 Wire Wire Line 142 6050 2400 6500 2400 143 Wire Wire Line 144 6050 2500 6500 2500 145 Wire Wire Line 146 6050 2600 6500 2600 147 Text Label 7900 2200 0 50 ~ 0 148 A6 149 Text Label 7900 2300 0 50 ~ 0 150 A3 151 Text Label 7900 2400 0 50 ~ 0 152 A4 153 Text Label 7900 2500 0 50 ~ 0 154 A5 155 Text Label 7900 2600 0 50 ~ 0 156 A7 157 Text Label 7100 2300 2 50 ~ 0 158 A0 159 Text Label 7100 2400 2 50 ~ 0 160 A2 161 Text Label 7100 2500 2 50 ~ 0 162 A1 163 Text Label 6100 2200 0 50 ~ 0 164 A6 165 Text Label 4300 2200 0 50 ~ 0 166 A6 167 Text Label 2500 2200 0 50 ~ 0 168 A6 169 Text Label 6100 2300 0 50 ~ 0 170 A3 171 Text Label 4300 2300 0 50 ~ 0 172 A3 173 Text Label 2500 2300 0 50 ~ 0 174 A3 175 Text Label 6100 2400 0 50 ~ 0 176 A4 177 Text Label 4300 2400 0 50 ~ 0 178 A4 179 Text Label 2500 2400 0 50 ~ 0 180 A4 181 Text Label 6100 2500 0 50 ~ 0 182 A5 183 Text Label 4300 2500 0 50 ~ 0 184 A5 185 Text Label 2500 2500 0 50 ~ 0 186 A5 187 Text Label 6100 2600 0 50 ~ 0 188 A7 189 Text Label 4300 2600 0 50 ~ 0 190 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~ 0 238 ~WE 239 Text Label 3500 2100 2 50 ~ 0 240 ~WE 241 Text Label 1700 2100 2 50 ~ 0 242 ~WE 243 Text Label 7900 2000 0 50 ~ 0 244 ~CAS 245 Text Label 6100 2000 0 50 ~ 0 246 ~CAS 247 Text Label 4300 2000 0 50 ~ 0 248 ~CAS 249 Text Label 2500 2000 0 50 ~ 0 250 ~CAS 251 Wire Wire Line 252 6900 2000 6800 1900 253 Wire Wire Line 254 6800 1900 6800 1300 255 Wire Wire Line 256 8400 2000 8400 1300 257 Wire Wire Line 258 8300 2100 8400 2000 259 Wire Wire Line 260 7850 2100 8300 2100 261 Wire Wire Line 262 6500 2100 6600 2000 263 Wire Wire Line 264 6600 2000 6600 1300 265 Wire Wire Line 266 6050 2100 6500 2100 267 Wire Wire Line 268 4700 2100 4800 2000 269 Wire Wire Line 270 4800 2000 4800 1300 271 Wire Wire Line 272 4700 2100 4250 2100 273 Wire Wire Line 274 2900 2100 3000 2000 275 Wire Wire Line 276 3000 2000 3000 1300 277 Wire Wire Line 278 2900 2100 2450 2100 279 Wire Wire Line 280 5000 1900 5100 2000 281 Wire Wire Line 282 5000 1300 5000 1900 283 Wire Wire Line 284 1400 1900 1500 2000 285 Wire Wire Line 286 1400 1300 1400 1900 287 Wire Wire Line 288 3200 1900 3300 2000 289 Wire Wire Line 290 3200 1300 3200 1900 291 Connection ~ 8400 3500 292 Text Label 7900 2100 0 50 ~ 0 293 RAM3 294 Connection ~ 6900 3500 295 Wire Bus Line 296 6900 3500 8400 3500 297 Connection ~ 5100 3500 298 Connection ~ 6600 3500 299 Wire Bus Line 300 6600 3500 6900 3500 301 Wire Bus Line 302 5100 3500 6600 3500 303 Connection ~ 4800 3500 304 Wire Bus Line 305 4800 3500 5100 3500 306 Wire Bus Line 307 3300 3500 4800 3500 308 Text Label 6100 2100 0 50 ~ 0 309 RAM2 310 Text Label 4300 2100 0 50 ~ 0 311 RAM1 312 Text Label 2500 2100 0 50 ~ 0 313 RAM0 314 Text Label 7100 2000 2 50 ~ 0 315 RAM3 316 Text Label 5300 2000 2 50 ~ 0 317 RAM2 318 Text Label 3500 2000 2 50 ~ 0 319 RAM1 320 Text Label 1700 2000 2 50 ~ 0 321 RAM0 322 Wire Wire Line 323 6900 2000 7150 2000 324 Wire Wire Line 325 5100 2000 5350 2000 326 Wire Wire Line 327 3300 2000 3550 2000 328 Wire Wire Line 329 1500 2000 1750 2000 330 Entry Wire Line 331 8300 1200 8400 1300 332 Entry Wire Line 333 6700 1200 6800 1300 334 Entry Wire Line 335 6500 1200 6600 1300 336 Entry Wire Line 337 4900 1200 5000 1300 338 Entry Wire Line 339 4700 1200 4800 1300 340 Entry Wire Line 341 3100 1200 3200 1300 342 Entry Wire Line 343 2900 1200 3000 1300 344 Entry Wire Line 345 1300 1200 1400 1300 346 Text GLabel 1000 1200 1 50 Input ~ 0 347 5V 348 Wire Wire Line 349 1000 1200 1000 3400 350 Wire Wire Line 351 7000 2600 7100 2600 352 Wire Wire Line 353 5200 2600 5300 2600 354 Wire Wire Line 355 3400 2600 3500 2600 356 Wire Wire Line 357 1600 2600 1700 2600 358 Text GLabel 1600 800 1 50 Input ~ 0 359 0V 360 Wire Wire Line 361 1600 800 1600 1000 362 Wire Wire Line 363 8200 1900 7850 1900 364 Wire Wire Line 365 6050 1900 6400 1900 366 Wire Wire Line 367 4250 1900 4600 1900 368 Wire Wire Line 369 2450 1900 2800 1900 370 Wire Bus Line 371 8400 3500 8900 3500 372 Text GLabel 8900 1200 2 50 BiDi ~ 0 373 RAM[0..3] 374 Text GLabel 8900 3500 2 50 Input ~ 0 375 RA[0..7] 376 Text Label 8850 3500 2 50 ~ 0 377 A[0..7] 378 Text GLabel 8900 3700 2 50 Input ~ 0 379 ~WE 380 Text GLabel 8650 3600 2 50 Input ~ 0 381 ~RAS 382 Wire Wire Line 383 1300 2100 1750 2100 384 Text GLabel 8900 1400 2 50 Input ~ 0 385 ~CAS 386 Wire Wire Line 387 1300 3700 3100 3700 388 Wire Wire Line 389 1300 3700 1300 2100 390 Wire Wire Line 391 3550 2100 3100 2100 392 Wire Wire Line 393 3100 2100 3100 3700 394 Connection ~ 3100 3700 395 Wire Wire Line 396 3100 3700 4900 3700 397 Wire Wire Line 398 4900 2100 4900 3700 399 Connection ~ 4900 3700 400 Wire Wire Line 401 4900 3700 6700 3700 402 Wire Wire Line 403 6700 2100 6700 3700 404 Connection ~ 6700 3700 405 Wire Wire Line 406 6700 3700 8900 3700 407 Wire Wire Line 408 6800 2200 6800 3600 409 Wire Wire Line 410 6800 3600 8650 3600 411 Wire Wire Line 412 5000 2200 5000 3600 413 Wire Wire Line 414 5000 3600 6800 3600 415 Connection ~ 6800 3600 416 Wire Wire Line 417 3550 2200 3200 2200 418 Wire Wire Line 419 3200 2200 3200 3600 420 Wire Wire Line 421 3200 3600 5000 3600 422 Connection ~ 5000 3600 423 Wire Wire Line 424 1750 2200 1400 2200 425 Wire Wire Line 426 1400 2200 1400 3600 427 Wire Wire Line 428 1400 3600 3200 3600 429 Connection ~ 3200 3600 430 Wire Wire Line 431 8300 2000 8300 1400 432 Wire Wire Line 433 8300 1400 8900 1400 434 Wire Wire Line 435 6500 2000 6500 1400 436 Wire Wire Line 437 6500 1400 8300 1400 438 Connection ~ 8300 1400 439 Wire Wire Line 440 4700 2000 4700 1400 441 Wire Wire Line 442 4700 1400 6500 1400 443 Connection ~ 6500 1400 444 Wire Wire Line 445 2900 2000 2900 1400 446 Wire Wire Line 447 2900 1400 4700 1400 448 Connection ~ 4700 1400 449 $Comp 450 L DRAM:TM4164EA4 IC20 451 U 1 1 623B101C 452 P 1550 5350 453 AR Path="/623B101C" Ref="IC20" Part="1" 454 AR Path="/61D7EEE8/623B101C" Ref="IC20" Part="1" 455 F 0 "IC20" H 1272 5396 50 0000 R CNN 456 F 1 "TM4164EA4" H 1272 5305 50 0000 R CNN 457 F 2 "" H 1600 5850 50 0001 C CNN 458 F 3 "" H 1600 5850 50 0001 C CNN 459 1 1550 5350 460 1 0 0 -1 461 $EndComp 462 Text GLabel 1550 3900 1 50 Input ~ 0 463 5V 464 Text GLabel 1550 7100 3 50 Input ~ 0 465 0V 466 Wire Wire Line 467 1550 3900 1550 4000 468 Wire Wire Line 469 1550 7100 1550 6800 470 Text GLabel 8900 5100 2 50 Input ~ 0 471 RA[0..7] 472 Wire Bus Line 473 8900 5100 2400 5100 474 Entry Wire Line 475 2300 5200 2400 5100 476 Entry Wire Line 477 2300 5300 2400 5200 478 Entry Wire Line 479 2300 5400 2400 5300 480 Entry Wire Line 481 2300 5500 2400 5400 482 Entry Wire Line 483 2300 5600 2400 5500 484 Entry Wire Line 485 2300 5700 2400 5600 486 Entry Wire Line 487 2300 5800 2400 5700 488 Entry Wire Line 489 2300 5900 2400 5800 490 Wire Wire Line 491 1900 5200 2300 5200 492 Wire Wire Line 493 1900 5300 2300 5300 494 Wire Wire Line 495 1900 5400 2300 5400 496 Wire Wire Line 497 1900 5500 2300 5500 498 Wire Wire Line 499 1900 5600 2300 5600 500 Wire Wire Line 501 1900 5700 2300 5700 502 Wire Wire Line 503 1900 5800 2300 5800 504 Wire Wire Line 505 1900 5900 2300 5900 506 NoConn ~ 1900 6000 507 Text Label 1950 5200 0 50 ~ 0 508 A0 509 Text Label 1950 5300 0 50 ~ 0 510 A1 511 Text Label 1950 5400 0 50 ~ 0 512 A2 513 Text Label 1950 5500 0 50 ~ 0 514 A3 515 Text Label 1950 5600 0 50 ~ 0 516 A4 517 Text Label 1950 5700 0 50 ~ 0 518 A5 519 Text Label 1950 5800 0 50 ~ 0 520 A6 521 Text Label 1950 5900 0 50 ~ 0 522 A7 523 Text GLabel 8900 4200 2 50 BiDi ~ 0 524 RAM[0..3] 525 Wire Bus Line 526 8900 4200 2400 4200 527 Entry Wire Line 528 2300 4300 2400 4200 529 Entry Wire Line 530 2300 4400 2400 4300 531 Entry Wire Line 532 2300 4500 2400 4400 533 Entry Wire Line 534 2300 4600 2400 4500 535 Entry Wire Line 536 2300 4700 2400 4600 537 Entry Wire Line 538 2300 4800 2400 4700 539 Entry Wire Line 540 2300 4900 2400 4800 541 Entry Wire Line 542 2300 5000 2400 4900 543 Wire Wire Line 544 1900 4300 2300 4300 545 Wire Wire Line 546 1900 4400 2300 4400 547 Wire Wire Line 548 1900 4500 2300 4500 549 Wire Wire Line 550 1900 4600 2300 4600 551 Wire Wire Line 552 1900 4700 2300 4700 553 Wire Wire Line 554 1900 4800 2300 4800 555 Wire Wire Line 556 1900 4900 2300 4900 557 Wire Wire Line 558 1900 5000 2300 5000 559 Text Label 1950 4300 0 50 ~ 0 560 RAM0 561 Text Label 1950 4500 0 50 ~ 0 562 RAM1 563 Text Label 1950 4700 0 50 ~ 0 564 RAM2 565 Text Label 1950 4900 0 50 ~ 0 566 RAM3 567 Text Label 1950 4400 0 50 ~ 0 568 RAM0 569 Text Label 1950 4600 0 50 ~ 0 570 RAM1 571 Text Label 1950 4800 0 50 ~ 0 572 RAM2 573 Text Label 1950 5000 0 50 ~ 0 574 RAM3 575 Text Label 8850 5100 2 50 ~ 0 576 A[0..7] 577 Text GLabel 8900 6200 2 50 Input ~ 0 578 ~CAS 579 Text GLabel 8650 6300 2 50 Input ~ 0 580 ~RAS 581 Text GLabel 8900 6400 2 50 Input ~ 0 582 ~WE 583 Wire Wire Line 584 8900 6200 1900 6200 585 Wire Wire Line 586 1900 6300 8650 6300 587 Wire Wire Line 588 1900 6400 8900 6400 589 Text Notes 2100 4100 0 50 ~ 0 590 Alternative DRAM single-in-line package 591 $Comp 592 L Device:C_Small A5 593 U 1 1 62D1023B 594 P 7650 3000 595 F 0 "A5" V 7800 3000 50 0000 C CNN 596 F 1 "47n/33n decoupler" V 7500 3000 50 0000 C CNN 597 F 2 "" H 7650 3000 50 0001 C CNN 598 F 3 "~" H 7650 3000 50 0001 C CNN 599 1 7650 3000 600 0 1 1 0 601 $EndComp 602 Wire Wire Line 603 8200 1900 8200 3000 604 Wire Wire Line 605 8200 3000 7750 3000 606 Wire Wire Line 607 7550 3000 7100 3000 608 Wire Wire Line 609 7100 3000 7100 2600 610 Wire Wire Line 611 7100 2600 7150 2600 612 Connection ~ 7100 2600 613 Wire Wire Line 614 1600 1000 2800 1000 615 $Comp 616 L Device:C_Small A4 617 U 1 1 62DF3EF5 618 P 5850 3000 619 F 0 "A4" V 6000 3000 50 0000 C CNN 620 F 1 "47n/33n decoupler" V 5700 3000 50 0000 C CNN 621 F 2 "" H 5850 3000 50 0001 C CNN 622 F 3 "~" H 5850 3000 50 0001 C CNN 623 1 5850 3000 624 0 1 1 0 625 $EndComp 626 Wire Wire Line 627 6400 1900 6400 3000 628 Wire Wire Line 629 6400 3000 5950 3000 630 Wire Wire Line 631 5750 3000 5300 3000 632 Wire Wire Line 633 5300 3000 5300 2600 634 Connection ~ 5300 2600 635 Wire Wire Line 636 5300 2600 5350 2600 637 $Comp 638 L Device:C_Small A3 639 U 1 1 62E816E9 640 P 4050 3000 641 F 0 "A3" V 4200 3000 50 0000 C CNN 642 F 1 "47n/33n decoupler" V 3900 3000 50 0000 C CNN 643 F 2 "" H 4050 3000 50 0001 C CNN 644 F 3 "~" H 4050 3000 50 0001 C CNN 645 1 4050 3000 646 0 1 1 0 647 $EndComp 648 Wire Wire Line 649 4600 1900 4600 3000 650 Wire Wire Line 651 4600 3000 4150 3000 652 Wire Wire Line 653 3950 3000 3500 3000 654 Wire Wire Line 655 3500 3000 3500 2600 656 Connection ~ 3500 2600 657 Wire Wire Line 658 3500 2600 3550 2600 659 $Comp 660 L Device:C_Small A2 661 U 1 1 62F3C917 662 P 2250 3000 663 F 0 "A2" V 2400 3000 50 0000 C CNN 664 F 1 "47n/33n decoupler" V 2100 3000 50 0000 C CNN 665 F 2 "" H 2250 3000 50 0001 C CNN 666 F 3 "~" H 2250 3000 50 0001 C CNN 667 1 2250 3000 668 0 1 1 0 669 $EndComp 670 Wire Wire Line 671 2800 1900 2800 3000 672 Wire Wire Line 673 2800 3000 2350 3000 674 Wire Wire Line 675 2150 3000 1700 3000 676 Wire Wire Line 677 1700 3000 1700 2600 678 Connection ~ 1700 2600 679 Wire Wire Line 680 1700 2600 1750 2600 681 Wire Wire Line 682 1000 3400 1600 3400 683 Wire Wire Line 684 1600 2600 1600 3400 685 Wire Wire Line 686 1600 3400 3400 3400 687 Wire Wire Line 688 3400 2600 3400 3400 689 Connection ~ 1600 3400 690 Wire Wire Line 691 3400 3400 5200 3400 692 Wire Wire Line 693 5200 2600 5200 3400 694 Connection ~ 3400 3400 695 Wire Wire Line 696 5200 3400 7000 3400 697 Wire Wire Line 698 7000 2600 7000 3400 699 Connection ~ 5200 3400 700 Wire Wire Line 701 8200 1900 8200 1000 702 Connection ~ 8200 1900 703 Wire Wire Line 704 6400 1900 6400 1000 705 Connection ~ 6400 1900 706 Connection ~ 6400 1000 707 Wire Wire Line 708 6400 1000 8200 1000 709 Wire Wire Line 710 4600 1900 4600 1000 711 Connection ~ 4600 1900 712 Connection ~ 4600 1000 713 Wire Wire Line 714 4600 1000 6400 1000 715 Wire Wire Line 716 2800 1900 2800 1000 717 Connection ~ 2800 1900 718 Connection ~ 2800 1000 719 Wire Wire Line 720 2800 1000 4600 1000 721 Entry Wire Line 722 2900 2300 3000 2400 723 Entry Wire Line 724 2900 2400 3000 2500 725 Entry Wire Line 726 2900 2500 3000 2600 727 Entry Wire Line 728 2900 2600 3000 2700 729 Entry Wire Line 730 1500 2500 1600 2400 731 Entry Wire Line 732 1500 2600 1600 2500 733 Entry Wire Line 734 3300 2500 3400 2400 735 Entry Wire Line 736 3300 2600 3400 2500 737 Entry Wire Line 738 4700 2300 4800 2400 739 Entry Wire Line 740 4700 2400 4800 2500 741 Entry Wire Line 742 4700 2500 4800 2600 743 Entry Wire Line 744 4700 2600 4800 2700 745 Entry Wire Line 746 6500 2300 6600 2400 747 Entry Wire Line 748 6500 2400 6600 2500 749 Entry Wire Line 750 6500 2500 6600 2600 751 Entry Wire Line 752 6500 2600 6600 2700 753 Entry Wire Line 754 5100 2500 5200 2400 755 Entry Wire Line 756 5100 2600 5200 2500 757 Entry Wire Line 758 6900 2500 7000 2400 759 Entry Wire Line 760 6900 2600 7000 2500 761 Entry Wire Line 762 8300 2300 8400 2400 763 Entry Wire Line 764 8300 2400 8400 2500 765 Entry Wire Line 766 8300 2500 8400 2600 767 Entry Wire Line 768 8300 2600 8400 2700 769 $Comp 770 L Device:C_Small A7 771 U 1 1 647212B6 772 P 1000 6800 773 F 0 "A7" V 1150 6800 50 0000 C CNN 774 F 1 "47n/33n decoupler" V 850 6800 50 0000 C CNN 775 F 2 "" H 1000 6800 50 0001 C CNN 776 F 3 "~" H 1000 6800 50 0001 C CNN 777 1 1000 6800 778 0 -1 -1 0 779 $EndComp 780 Wire Wire Line 781 1550 6800 1100 6800 782 Connection ~ 1550 6800 783 Wire Wire Line 784 1550 6800 1550 6600 785 Wire Wire Line 786 900 6800 700 6800 787 Wire Wire Line 788 700 6800 700 4000 789 Wire Wire Line 790 700 4000 1550 4000 791 Wire Bus Line 792 1500 2400 1500 3500 793 Wire Bus Line 794 3300 2400 3300 3500 795 Wire Bus Line 796 5100 2400 5100 3500 797 Wire Bus Line 798 6900 2400 6900 3500 799 Wire Bus Line 800 3000 2300 3000 3500 801 Wire Bus Line 802 4800 2300 4800 3500 803 Wire Bus Line 804 6600 2300 6600 3500 805 Wire Bus Line 806 8400 2300 8400 3500 807 Wire Bus Line 808 2400 5100 2400 5800 809 Wire Bus Line 810 2400 4200 2400 4900 811 Wire Bus Line 812 1300 1200 8900 1200 813 Connection ~ 1550 4000 814 Wire Wire Line 815 1550 4000 1550 4100 816 $EndSCHEMATC