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 10 10 8 Title "" 9 Date "" 10 Rev "" 11 Comp "" 12 Comment1 "" 13 Comment2 "" 14 Comment3 "" 15 Comment4 "" 16 $EndDescr 17 $Comp 18 L Connector_Generic:Conn_01x03 PL? 19 U 1 1 6461644D 20 P 850 1300 21 AR Path="/6461644D" Ref="PL?" Part="1" 22 AR Path="/6460C88B/6461644D" Ref="PL3" Part="1" 23 F 0 "PL3" H 770 1617 50 0000 C CNN 24 F 1 "Power" H 770 1526 50 0000 C CNN 25 F 2 "" H 850 1300 50 0001 C CNN 26 F 3 "~" H 850 1300 50 0001 C CNN 27 1 850 1300 28 -1 0 0 -1 29 $EndComp 30 Text GLabel 3150 1200 2 50 Output ~ 0 31 5V 32 Wire Wire Line 33 1050 1200 1550 1200 34 Text GLabel 3150 1700 2 50 Output ~ 0 35 0V 36 Text GLabel 3150 2200 2 50 Output ~ 0 37 -5V 38 Wire Wire Line 39 1350 1700 1450 1700 40 Wire Wire Line 41 1250 2200 1450 2200 42 $Comp 43 L Device:C Ax? 44 U 1 1 6461645A 45 P 2150 1450 46 AR Path="/6461645A" Ref="Ax?" Part="1" 47 AR Path="/6460C88B/6461645A" Ref="Ax19" Part="1" 48 F 0 "Ax19" H 2265 1496 50 0000 L CNN 49 F 1 "47nF" H 2265 1405 50 0000 L CNN 50 F 2 "" H 2188 1300 50 0001 C CNN 51 F 3 "~" H 2150 1450 50 0001 C CNN 52 1 2150 1450 53 1 0 0 -1 54 $EndComp 55 $Comp 56 L Device:C Ax? 57 U 1 1 64616461 58 P 2050 1950 59 AR Path="/64616461" Ref="Ax?" Part="1" 60 AR Path="/6460C88B/64616461" Ref="Ax1" Part="1" 61 F 0 "Ax1" H 2165 1996 50 0000 L CNN 62 F 1 "47nF" H 2165 1905 50 0000 L CNN 63 F 2 "" H 2088 1800 50 0001 C CNN 64 F 3 "~" H 2050 1950 50 0001 C CNN 65 1 2050 1950 66 1 0 0 -1 67 $EndComp 68 $Comp 69 L Device:CP C? 70 U 1 1 64616468 71 P 1550 1450 72 AR Path="/64616468" Ref="C?" Part="1" 73 AR Path="/6460C88B/64616468" Ref="C1" Part="1" 74 F 0 "C1" H 1668 1496 50 0000 L CNN 75 F 1 "47??F/16V" H 1668 1405 38 0000 L CNN 76 F 2 "" H 1588 1300 50 0001 C CNN 77 F 3 "~" H 1550 1450 50 0001 C CNN 78 1 1550 1450 79 1 0 0 -1 80 $EndComp 81 $Comp 82 L Device:CP C? 83 U 1 1 6461646F 84 P 1450 1950 85 AR Path="/6461646F" Ref="C?" Part="1" 86 AR Path="/6460C88B/6461646F" Ref="C2" Part="1" 87 F 0 "C2" H 1568 1996 50 0000 L CNN 88 F 1 "10??F/16V" H 1568 1905 38 0000 L CNN 89 F 2 "" H 1488 1800 50 0001 C CNN 90 F 3 "~" H 1450 1950 50 0001 C CNN 91 1 1450 1950 92 1 0 0 -1 93 $EndComp 94 Wire Wire Line 95 1350 1700 1350 1300 96 Wire Wire Line 97 1350 1300 1050 1300 98 Wire Wire Line 99 1250 2200 1250 1400 100 Wire Wire Line 101 1550 1300 1550 1200 102 Connection ~ 1550 1200 103 Wire Wire Line 104 1550 1200 2150 1200 105 Wire Wire Line 106 1450 1800 1450 1700 107 Connection ~ 1450 1700 108 Wire Wire Line 109 1450 1700 1550 1700 110 Wire Wire Line 111 1550 1600 1550 1700 112 Connection ~ 1550 1700 113 Wire Wire Line 114 1550 1700 2050 1700 115 Wire Wire Line 116 1450 2100 1450 2200 117 Connection ~ 1450 2200 118 Wire Wire Line 119 1450 2200 2050 2200 120 Wire Wire Line 121 2050 2200 2050 2100 122 Connection ~ 2050 2200 123 Wire Wire Line 124 2050 1800 2050 1700 125 Connection ~ 2050 1700 126 Wire Wire Line 127 2050 1700 2150 1700 128 Wire Wire Line 129 2150 1700 2150 1600 130 Connection ~ 2150 1700 131 Wire Wire Line 132 2150 1300 2150 1200 133 Connection ~ 2150 1200 134 $Comp 135 L Connector_Generic:Conn_01x02 PL? 136 U 1 1 6461648E 137 P 850 2700 138 AR Path="/6461648E" Ref="PL?" Part="1" 139 AR Path="/6460C88B/6461648E" Ref="PL4" Part="1" 140 F 0 "PL4" H 770 2917 50 0000 C CNN 141 F 1 "Power" H 770 2826 50 0000 C CNN 142 F 2 "" H 850 2700 50 0001 C CNN 143 F 3 "~" H 850 2700 50 0001 C CNN 144 1 850 2700 145 -1 0 0 -1 146 $EndComp 147 Text Label 1050 1200 0 50 ~ 0 148 5V 149 Text Label 1050 1300 0 50 ~ 0 150 0V 151 Wire Wire Line 152 1050 1400 1250 1400 153 Text Label 1050 1400 0 50 ~ 0 154 -5V 155 Text Label 1050 2700 0 50 ~ 0 156 RETURN 157 Text Label 1050 2800 0 50 ~ 0 158 18VAC 159 Text GLabel 2050 2700 2 50 UnSpc ~ 0 160 POWER_AC_RETURN 161 Text GLabel 2050 2800 2 50 UnSpc ~ 0 162 POWER_18VAC 163 Wire Wire Line 164 1050 2700 1550 2700 165 Wire Wire Line 166 1050 2800 1550 2800 167 Text Notes 850 3200 0 50 ~ 0 168 PL4 introduced for the two separate connections\non the original board. 169 $Comp 170 L power:PWR_FLAG #FLG? 171 U 1 1 646164A0 172 P 1550 2700 173 AR Path="/646164A0" Ref="#FLG?" Part="1" 174 AR Path="/6460C88B/646164A0" Ref="#FLG01" Part="1" 175 F 0 "#FLG01" H 1550 2775 50 0001 C CNN 176 F 1 "PWR_FLAG" H 1550 2874 50 0000 C CNN 177 F 2 "" H 1550 2700 50 0001 C CNN 178 F 3 "~" H 1550 2700 50 0001 C CNN 179 1 1550 2700 180 1 0 0 -1 181 $EndComp 182 Connection ~ 1550 2700 183 Wire Wire Line 184 1550 2700 2050 2700 185 $Comp 186 L power:PWR_FLAG #FLG? 187 U 1 1 646164A8 188 P 1550 2800 189 AR Path="/646164A8" Ref="#FLG?" Part="1" 190 AR Path="/6460C88B/646164A8" Ref="#FLG02" Part="1" 191 F 0 "#FLG02" H 1550 2875 50 0001 C CNN 192 F 1 "PWR_FLAG" H 1550 2973 50 0000 C CNN 193 F 2 "" H 1550 2800 50 0001 C CNN 194 F 3 "~" H 1550 2800 50 0001 C CNN 195 1 1550 2800 196 -1 0 0 1 197 $EndComp 198 Connection ~ 1550 2800 199 Wire Wire Line 200 1550 2800 2050 2800 201 $Comp 202 L power:+5V #PWR? 203 U 1 1 646164B0 204 P 2950 1000 205 AR Path="/646164B0" Ref="#PWR?" Part="1" 206 AR Path="/6460C88B/646164B0" Ref="#PWR02" Part="1" 207 F 0 "#PWR02" H 2950 850 50 0001 C CNN 208 F 1 "+5V" H 2965 1173 50 0000 C CNN 209 F 2 "" H 2950 1000 50 0001 C CNN 210 F 3 "" H 2950 1000 50 0001 C CNN 211 1 2950 1000 212 1 0 0 -1 213 $EndComp 214 $Comp 215 L power:GND #PWR? 216 U 1 1 646164B6 217 P 2750 1900 218 AR Path="/646164B6" Ref="#PWR?" Part="1" 219 AR Path="/6460C88B/646164B6" Ref="#PWR01" Part="1" 220 F 0 "#PWR01" H 2750 1650 50 0001 C CNN 221 F 1 "GND" H 2755 1727 50 0000 C CNN 222 F 2 "" H 2750 1900 50 0001 C CNN 223 F 3 "" H 2750 1900 50 0001 C CNN 224 1 2750 1900 225 1 0 0 -1 226 $EndComp 227 $Comp 228 L power:-5V #PWR? 229 U 1 1 646164BC 230 P 2950 2000 231 AR Path="/646164BC" Ref="#PWR?" Part="1" 232 AR Path="/6460C88B/646164BC" Ref="#PWR03" Part="1" 233 F 0 "#PWR03" H 2950 2100 50 0001 C CNN 234 F 1 "-5V" H 2965 2173 50 0000 C CNN 235 F 2 "" H 2950 2000 50 0001 C CNN 236 F 3 "" H 2950 2000 50 0001 C CNN 237 1 2950 2000 238 1 0 0 -1 239 $EndComp 240 Wire Wire Line 241 2150 1200 2950 1200 242 Wire Wire Line 243 2050 2200 2950 2200 244 Wire Wire Line 245 2150 1700 2750 1700 246 Connection ~ 2950 1200 247 Wire Wire Line 248 2950 1200 3150 1200 249 Wire Wire Line 250 2750 1900 2750 1800 251 Connection ~ 2750 1700 252 Wire Wire Line 253 2750 1700 3150 1700 254 Wire Wire Line 255 2950 2200 2950 2100 256 Connection ~ 2950 2200 257 Wire Wire Line 258 2950 2200 3150 2200 259 $Comp 260 L power:PWR_FLAG #FLG? 261 U 1 1 646164CD 262 P 2950 1100 263 AR Path="/646164CD" Ref="#FLG?" Part="1" 264 AR Path="/6460C88B/646164CD" Ref="#FLG04" Part="1" 265 F 0 "#FLG04" H 2950 1175 50 0001 C CNN 266 F 1 "PWR_FLAG" V 2950 1228 50 0000 L CNN 267 F 2 "" H 2950 1100 50 0001 C CNN 268 F 3 "~" H 2950 1100 50 0001 C CNN 269 1 2950 1100 270 0 -1 -1 0 271 $EndComp 272 $Comp 273 L power:PWR_FLAG #FLG? 274 U 1 1 646164D3 275 P 2950 2100 276 AR Path="/646164D3" Ref="#FLG?" Part="1" 277 AR Path="/6460C88B/646164D3" Ref="#FLG05" Part="1" 278 F 0 "#FLG05" H 2950 2175 50 0001 C CNN 279 F 1 "PWR_FLAG" V 2950 2228 50 0000 L CNN 280 F 2 "" H 2950 2100 50 0001 C CNN 281 F 3 "~" H 2950 2100 50 0001 C CNN 282 1 2950 2100 283 0 1 1 0 284 $EndComp 285 $Comp 286 L power:PWR_FLAG #FLG? 287 U 1 1 646164D9 288 P 2750 1800 289 AR Path="/646164D9" Ref="#FLG?" Part="1" 290 AR Path="/6460C88B/646164D9" Ref="#FLG03" Part="1" 291 F 0 "#FLG03" H 2750 1875 50 0001 C CNN 292 F 1 "PWR_FLAG" V 2750 1928 50 0000 L CNN 293 F 2 "" H 2750 1800 50 0001 C CNN 294 F 3 "~" H 2750 1800 50 0001 C CNN 295 1 2750 1800 296 0 -1 -1 0 297 $EndComp 298 Connection ~ 2750 1800 299 Wire Wire Line 300 2750 1800 2750 1700 301 Wire Wire Line 302 2950 1000 2950 1100 303 Connection ~ 2950 1100 304 Wire Wire Line 305 2950 1100 2950 1200 306 Connection ~ 2950 2100 307 Wire Wire Line 308 2950 2000 2950 2100 309 $Comp 310 L 74xx:74LS08 IC? 311 U 5 1 6461B35E 312 P 8300 1200 313 AR Path="/6461B35E" Ref="IC?" Part="5" 314 AR Path="/6460C88B/6461B35E" Ref="IC19" Part="5" 315 F 0 "IC19" V 8700 1200 50 0000 C CNN 316 F 1 "74LS08" V 8600 1200 50 0000 C CNN 317 F 2 "" H 8300 1200 50 0001 C CNN 318 F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 8300 1200 50 0001 C CNN 319 5 8300 1200 320 0 -1 -1 0 321 $EndComp 322 Text GLabel 7700 1200 0 50 Input ~ 0 323 5V 324 Wire Wire Line 325 7700 1200 7800 1200 326 Text GLabel 8900 1200 2 50 Input ~ 0 327 0V 328 Wire Wire Line 329 8900 1200 8800 1200 330 $Comp 331 L Device:C_Small A? 332 U 1 1 6461B369 333 P 8300 1700 334 AR Path="/61D7EEE8/6461B369" Ref="A?" Part="1" 335 AR Path="/6461B369" Ref="A?" Part="1" 336 AR Path="/6460C88B/6461B369" Ref="A18" Part="1" 337 F 0 "A18" V 8450 1700 50 0000 C CNN 338 F 1 "47n/33n decoupler" V 8150 1700 50 0000 C CNN 339 F 2 "" H 8300 1700 50 0001 C CNN 340 F 3 "~" H 8300 1700 50 0001 C CNN 341 1 8300 1700 342 0 1 1 0 343 $EndComp 344 Wire Wire Line 345 8800 1700 8400 1700 346 Wire Wire Line 347 8200 1700 7800 1700 348 Wire Wire Line 349 8800 1700 8800 1200 350 Connection ~ 8800 1200 351 Wire Wire Line 352 7800 1700 7800 1200 353 Connection ~ 7800 1200 354 $Comp 355 L 74xx:74LS86 IC? 356 U 5 1 6462D6A5 357 P 6400 1200 358 AR Path="/61DB955D/61DF7FF4/6462D6A5" Ref="IC?" Part="5" 359 AR Path="/62411C42/6462D6A5" Ref="IC?" Part="5" 360 AR Path="/6460C88B/6462D6A5" Ref="IC15" Part="5" 361 F 0 "IC15" V 6800 1200 50 0000 C CNN 362 F 1 "74LS86" V 6700 1200 50 0000 C CNN 363 F 2 "" H 6400 1200 50 0001 C CNN 364 F 3 "74xx/74ls86.pdf" H 6400 1200 50 0001 C CNN 365 5 6400 1200 366 0 -1 -1 0 367 $EndComp 368 Text GLabel 5800 1200 0 50 Input ~ 0 369 5V 370 Text GLabel 7000 1200 2 50 Input ~ 0 371 0V 372 Wire Wire Line 373 5800 1200 5900 1200 374 Wire Wire Line 375 6900 1200 7000 1200 376 $Comp 377 L 74xx:74LS00 IC? 378 U 5 1 6462D6B0 379 P 6400 2500 380 AR Path="/61DB955D/61DF7FF4/6462D6B0" Ref="IC?" Part="5" 381 AR Path="/62411C42/6462D6B0" Ref="IC?" Part="5" 382 AR Path="/6460C88B/6462D6B0" Ref="IC16" Part="5" 383 F 0 "IC16" V 6800 2500 50 0000 C CNN 384 F 1 "74LS00" V 6700 2500 50 0000 C CNN 385 F 2 "" H 6400 2500 50 0001 C CNN 386 F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 6400 2500 50 0001 C CNN 387 5 6400 2500 388 0 -1 -1 0 389 $EndComp 390 Text GLabel 7000 2500 2 50 Input ~ 0 391 0V 392 Text GLabel 5800 2500 0 50 Input ~ 0 393 5V 394 Wire Wire Line 395 5900 2500 5800 2500 396 Wire Wire Line 397 7000 2500 6900 2500 398 $Comp 399 L 74xx:74LS74 IC? 400 U 3 1 64640CAE 401 P 4500 3800 402 AR Path="/61DB955D/61DF7FF4/64640CAE" Ref="IC?" Part="3" 403 AR Path="/62411C42/64640CAE" Ref="IC?" Part="3" 404 AR Path="/6460C88B/64640CAE" Ref="IC12" Part="3" 405 F 0 "IC12" V 4900 3800 50 0000 C CNN 406 F 1 "74LS74" V 4800 3800 50 0000 C CNN 407 F 2 "" H 4500 3800 50 0001 C CNN 408 F 3 "74xx/74hc_hct74.pdf" H 4500 3800 50 0001 C CNN 409 3 4500 3800 410 0 -1 -1 0 411 $EndComp 412 Text GLabel 3900 3800 0 50 Input ~ 0 413 5V 414 Text GLabel 5100 3800 2 50 Input ~ 0 415 0V 416 Wire Wire Line 417 5100 3800 5000 3800 418 Wire Wire Line 419 4100 3800 4000 3800 420 $Comp 421 L 74xx:74LS86 IC? 422 U 5 1 64640CB9 423 P 4500 6400 424 AR Path="/61DB955D/61DF7FF4/64640CB9" Ref="IC?" Part="5" 425 AR Path="/62411C42/64640CB9" Ref="IC?" Part="5" 426 AR Path="/6460C88B/64640CB9" Ref="IC14" Part="5" 427 F 0 "IC14" V 4900 6400 50 0000 C CNN 428 F 1 "74LS86" V 4800 6400 50 0000 C CNN 429 F 2 "" H 4500 6400 50 0001 C CNN 430 F 3 "74xx/74ls86.pdf" H 4500 6400 50 0001 C CNN 431 5 4500 6400 432 0 -1 -1 0 433 $EndComp 434 Text GLabel 3900 6400 0 50 Input ~ 0 435 5V 436 Text GLabel 5100 6400 2 50 Input ~ 0 437 0V 438 Wire Wire Line 439 3900 6400 4000 6400 440 Wire Wire Line 441 5000 6400 5100 6400 442 $Comp 443 L 74xx:74LS74 IC? 444 U 3 1 64652B99 445 P 4500 2500 446 AR Path="/61DB955D/61DF7FF4/64652B99" Ref="IC?" Part="3" 447 AR Path="/62411C42/64652B99" Ref="IC?" Part="3" 448 AR Path="/6460C88B/64652B99" Ref="IC11" Part="3" 449 F 0 "IC11" V 4900 2500 50 0000 C CNN 450 F 1 "74LS74" V 4800 2500 50 0000 C CNN 451 F 2 "" H 4500 2500 50 0001 C CNN 452 F 3 "74xx/74hc_hct74.pdf" H 4500 2500 50 0001 C CNN 453 3 4500 2500 454 0 -1 -1 0 455 $EndComp 456 Text GLabel 3900 2500 0 50 Input ~ 0 457 5V 458 Text GLabel 5100 2500 2 50 Input ~ 0 459 0V 460 Wire Wire Line 461 5100 2500 5000 2500 462 Wire Wire Line 463 4100 2500 4000 2500 464 $Comp 465 L 74xx:74LS00 IC? 466 U 5 1 64663FDB 467 P 4500 1200 468 AR Path="/61DB955D/61DF7FF4/64663FDB" Ref="IC?" Part="5" 469 AR Path="/62411C42/64663FDB" Ref="IC?" Part="5" 470 AR Path="/6460C88B/64663FDB" Ref="IC10" Part="5" 471 F 0 "IC10" V 4900 1200 50 0000 C CNN 472 F 1 "74LS00" V 4800 1200 50 0000 C CNN 473 F 2 "" H 4500 1200 50 0001 C CNN 474 F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 4500 1200 50 0001 C CNN 475 5 4500 1200 476 0 -1 -1 0 477 $EndComp 478 Text GLabel 5100 1200 2 50 Input ~ 0 479 0V 480 Text GLabel 3900 1200 0 50 Input ~ 0 481 5V 482 Wire Wire Line 483 5100 1200 5000 1200 484 $Comp 485 L Device:C_Small A? 486 U 1 1 646919C3 487 P 4500 1700 488 AR Path="/61D7EEE8/646919C3" Ref="A?" Part="1" 489 AR Path="/646919C3" Ref="A?" Part="1" 490 AR Path="/6460C88B/646919C3" Ref="A10" Part="1" 491 F 0 "A10" V 4650 1700 50 0000 C CNN 492 F 1 "47n/33n decoupler" V 4350 1700 50 0000 C CNN 493 F 2 "" H 4500 1700 50 0001 C CNN 494 F 3 "~" H 4500 1700 50 0001 C CNN 495 1 4500 1700 496 0 1 1 0 497 $EndComp 498 Wire Wire Line 499 4000 1200 4000 1700 500 Wire Wire Line 501 4000 1700 4400 1700 502 Connection ~ 4000 1200 503 Wire Wire Line 504 4000 1200 3900 1200 505 Wire Wire Line 506 4600 1700 5000 1700 507 Wire Wire Line 508 5000 1700 5000 1200 509 Connection ~ 5000 1200 510 $Comp 511 L Device:C_Small A? 512 U 1 1 64697A6B 513 P 4500 3000 514 AR Path="/61D7EEE8/64697A6B" Ref="A?" Part="1" 515 AR Path="/64697A6B" Ref="A?" Part="1" 516 AR Path="/6460C88B/64697A6B" Ref="A11" Part="1" 517 F 0 "A11" V 4650 3000 50 0000 C CNN 518 F 1 "47n/33n decoupler" V 4350 3000 50 0000 C CNN 519 F 2 "" H 4500 3000 50 0001 C CNN 520 F 3 "~" H 4500 3000 50 0001 C CNN 521 1 4500 3000 522 0 1 1 0 523 $EndComp 524 Wire Wire Line 525 4000 2500 4000 3000 526 Wire Wire Line 527 4000 3000 4400 3000 528 Connection ~ 4000 2500 529 Wire Wire Line 530 4000 2500 3900 2500 531 Wire Wire Line 532 4600 3000 5000 3000 533 Wire Wire Line 534 5000 3000 5000 2500 535 Connection ~ 5000 2500 536 Wire Wire Line 537 5000 2500 4900 2500 538 $Comp 539 L Device:C_Small A? 540 U 1 1 6469C3A3 541 P 4500 4300 542 AR Path="/61D7EEE8/6469C3A3" Ref="A?" Part="1" 543 AR Path="/6469C3A3" Ref="A?" Part="1" 544 AR Path="/6460C88B/6469C3A3" Ref="A12" Part="1" 545 F 0 "A12" V 4650 4300 50 0000 C CNN 546 F 1 "47n/33n decoupler" V 4350 4300 50 0000 C CNN 547 F 2 "" H 4500 4300 50 0001 C CNN 548 F 3 "~" H 4500 4300 50 0001 C CNN 549 1 4500 4300 550 0 1 1 0 551 $EndComp 552 Wire Wire Line 553 4000 3800 4000 4300 554 Wire Wire Line 555 4000 4300 4400 4300 556 Connection ~ 4000 3800 557 Wire Wire Line 558 4000 3800 3900 3800 559 Wire Wire Line 560 4600 4300 5000 4300 561 Wire Wire Line 562 5000 4300 5000 3800 563 Connection ~ 5000 3800 564 Wire Wire Line 565 5000 3800 4900 3800 566 $Comp 567 L Device:C_Small A? 568 U 1 1 646A9C11 569 P 6400 1700 570 AR Path="/61D7EEE8/646A9C11" Ref="A?" Part="1" 571 AR Path="/646A9C11" Ref="A?" Part="1" 572 AR Path="/6460C88B/646A9C11" Ref="A14" Part="1" 573 F 0 "A14" V 6550 1700 50 0000 C CNN 574 F 1 "47n/33n decoupler" V 6250 1700 50 0000 C CNN 575 F 2 "" H 6400 1700 50 0001 C CNN 576 F 3 "~" H 6400 1700 50 0001 C CNN 577 1 6400 1700 578 0 1 1 0 579 $EndComp 580 $Comp 581 L Device:C_Small A? 582 U 1 1 646A9C75 583 P 4500 6900 584 AR Path="/61D7EEE8/646A9C75" Ref="A?" Part="1" 585 AR Path="/646A9C75" Ref="A?" Part="1" 586 AR Path="/6460C88B/646A9C75" Ref="A13" Part="1" 587 F 0 "A13" V 4650 6900 50 0000 C CNN 588 F 1 "47n/33n decoupler" V 4350 6900 50 0000 C CNN 589 F 2 "" H 4500 6900 50 0001 C CNN 590 F 3 "~" H 4500 6900 50 0001 C CNN 591 1 4500 6900 592 0 1 1 0 593 $EndComp 594 Wire Wire Line 595 5900 1200 5900 1700 596 Wire Wire Line 597 5900 1700 6300 1700 598 Connection ~ 5900 1200 599 Wire Wire Line 600 6500 1700 6900 1700 601 Wire Wire Line 602 6900 1700 6900 1200 603 Connection ~ 6900 1200 604 Wire Wire Line 605 4000 6400 4000 6900 606 Wire Wire Line 607 4000 6900 4400 6900 608 Connection ~ 4000 6400 609 Wire Wire Line 610 4600 6900 5000 6900 611 Wire Wire Line 612 5000 6900 5000 6400 613 Connection ~ 5000 6400 614 $Comp 615 L Device:C_Small A? 616 U 1 1 646B9B14 617 P 6400 3000 618 AR Path="/61D7EEE8/646B9B14" Ref="A?" Part="1" 619 AR Path="/646B9B14" Ref="A?" Part="1" 620 AR Path="/6460C88B/646B9B14" Ref="A15" Part="1" 621 F 0 "A15" V 6550 3000 50 0000 C CNN 622 F 1 "47n/33n decoupler" V 6250 3000 50 0000 C CNN 623 F 2 "" H 6400 3000 50 0001 C CNN 624 F 3 "~" H 6400 3000 50 0001 C CNN 625 1 6400 3000 626 0 1 1 0 627 $EndComp 628 Wire Wire Line 629 5900 2500 5900 3000 630 Wire Wire Line 631 5900 3000 6300 3000 632 Connection ~ 5900 2500 633 Wire Wire Line 634 6500 3000 6900 3000 635 Wire Wire Line 636 6900 3000 6900 2500 637 Connection ~ 6900 2500 638 $Comp 639 L 74xx:74LS08 IC? 640 U 5 1 646C3EC4 641 P 6400 5100 642 AR Path="/61F2273C/646C3EC4" Ref="IC?" Part="5" 643 AR Path="/6460C88B/646C3EC4" Ref="IC18" Part="5" 644 F 0 "IC18" V 6800 5100 50 0000 C CNN 645 F 1 "74LS08" V 6700 5100 50 0000 C CNN 646 F 2 "" H 6400 5100 50 0001 C CNN 647 F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 6400 5100 50 0001 C CNN 648 5 6400 5100 649 0 -1 -1 0 650 $EndComp 651 Text GLabel 5800 5100 0 50 Input ~ 0 652 5V 653 Wire Wire Line 654 5800 5100 5900 5100 655 Text GLabel 7000 5100 2 50 Input ~ 0 656 0V 657 Wire Wire Line 658 7000 5100 6900 5100 659 $Comp 660 L Device:C_Small A? 661 U 1 1 646CAC33 662 P 6400 5600 663 AR Path="/61D7EEE8/646CAC33" Ref="A?" Part="1" 664 AR Path="/646CAC33" Ref="A?" Part="1" 665 AR Path="/6460C88B/646CAC33" Ref="A17" Part="1" 666 F 0 "A17" V 6550 5600 50 0000 C CNN 667 F 1 "47n/33n decoupler" V 6250 5600 50 0000 C CNN 668 F 2 "" H 6400 5600 50 0001 C CNN 669 F 3 "~" H 6400 5600 50 0001 C CNN 670 1 6400 5600 671 0 1 1 0 672 $EndComp 673 Wire Wire Line 674 5900 5100 5900 5600 675 Wire Wire Line 676 5900 5600 6300 5600 677 Connection ~ 5900 5100 678 Wire Wire Line 679 6500 5600 6900 5600 680 Wire Wire Line 681 6900 5600 6900 5100 682 Connection ~ 6900 5100 683 $Comp 684 L 74xx:74LS00 IC? 685 U 5 1 646D1448 686 P 6400 3800 687 AR Path="/61DF4BC2/646D1448" Ref="IC?" Part="5" 688 AR Path="/6460C88B/646D1448" Ref="IC17" Part="5" 689 F 0 "IC17" V 6800 3800 50 0000 C CNN 690 F 1 "74LS00" V 6700 3800 50 0000 C CNN 691 F 2 "" H 6400 3800 50 0001 C CNN 692 F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 6400 3800 50 0001 C CNN 693 5 6400 3800 694 0 -1 -1 0 695 $EndComp 696 Text GLabel 5800 3800 0 50 Input ~ 0 697 5V 698 Text GLabel 7000 3800 2 50 Input ~ 0 699 0V 700 Wire Wire Line 701 5900 3800 5800 3800 702 Wire Wire Line 703 7000 3800 6900 3800 704 $Comp 705 L Device:C_Small A? 706 U 1 1 646D706B 707 P 6400 4300 708 AR Path="/61D7EEE8/646D706B" Ref="A?" Part="1" 709 AR Path="/646D706B" Ref="A?" Part="1" 710 AR Path="/6460C88B/646D706B" Ref="A16" Part="1" 711 F 0 "A16" V 6550 4300 50 0000 C CNN 712 F 1 "47n/33n decoupler" V 6250 4300 50 0000 C CNN 713 F 2 "" H 6400 4300 50 0001 C CNN 714 F 3 "~" H 6400 4300 50 0001 C CNN 715 1 6400 4300 716 0 1 1 0 717 $EndComp 718 Wire Wire Line 719 5900 3800 5900 4300 720 Wire Wire Line 721 5900 4300 6300 4300 722 Connection ~ 5900 3800 723 Wire Wire Line 724 6500 4300 6900 4300 725 Wire Wire Line 726 6900 4300 6900 3800 727 Connection ~ 6900 3800 728 $Comp 729 L Amplifier_Operational:LM324 IC? 730 U 5 1 646E146E 731 P 4500 5000 732 AR Path="/624B50A6/646E146E" Ref="IC?" Part="5" 733 AR Path="/6460C88B/646E146E" Ref="IC13" Part="5" 734 F 0 "IC13" V 4800 5000 50 0000 C CNN 735 F 1 "LM324" V 4700 5000 50 0000 C CNN 736 F 2 "" H 4450 5100 50 0001 C CNN 737 F 3 "http://www.ti.com/lit/ds/symlink/lm2902-n.pdf" H 4550 5200 50 0001 C CNN 738 5 4500 5000 739 0 -1 -1 0 740 $EndComp 741 Text GLabel 5100 5100 2 50 Input ~ 0 742 -5V 743 Text GLabel 3900 5100 0 50 Input ~ 0 744 5V 745 Wire Wire Line 746 4200 5100 3900 5100 747 Wire Wire Line 748 5100 5100 4800 5100 749 $Comp 750 L 74xx:74LS04 IC8 751 U 7 1 647088BB 752 P 2600 5100 753 F 0 "IC8" V 2967 5100 50 0000 C CNN 754 F 1 "74LS04" V 2876 5100 50 0000 C CNN 755 F 2 "" H 2600 5100 50 0001 C CNN 756 F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2600 5100 50 0001 C CNN 757 7 2600 5100 758 0 -1 -1 0 759 $EndComp 760 Text GLabel 3200 5100 2 50 Input ~ 0 761 0V 762 Text GLabel 2000 5100 0 50 Input ~ 0 763 5V 764 $Comp 765 L Device:C_Small A? 766 U 1 1 6470DED4 767 P 2600 5600 768 AR Path="/61D7EEE8/6470DED4" Ref="A?" Part="1" 769 AR Path="/6470DED4" Ref="A?" Part="1" 770 AR Path="/6460C88B/6470DED4" Ref="A9" Part="1" 771 F 0 "A9" V 2750 5600 50 0000 C CNN 772 F 1 "47n/33n decoupler" V 2450 5600 50 0000 C CNN 773 F 2 "" H 2600 5600 50 0001 C CNN 774 F 3 "~" H 2600 5600 50 0001 C CNN 775 1 2600 5600 776 0 1 1 0 777 $EndComp 778 Wire Wire Line 779 2000 5100 2100 5100 780 Wire Wire Line 781 2100 5100 2100 5600 782 Wire Wire Line 783 2100 5600 2500 5600 784 Connection ~ 2100 5100 785 Wire Wire Line 786 2700 5600 3100 5600 787 Wire Wire Line 788 3100 5600 3100 5100 789 Wire Wire Line 790 3100 5100 3200 5100 791 Connection ~ 3100 5100 792 Text Notes 2300 6850 0 50 ~ 0 793 See clocks for IC9. 794 Text Notes 2300 4300 0 50 ~ 0 795 See ULA for IC1.\nSee ROM for IC2.\nSee CPU for IC3.\nSee RAM for IC4, IC5, IC6, IC7. 796 Text Notes 8000 3000 0 50 ~ 0 797 See RAM for IC20. 798 $EndSCHEMATC