paul@0 | 1 | EESchema Schematic File Version 4 |
paul@0 | 2 | LIBS:AcornElectronMainboard-cache |
paul@0 | 3 | EELAYER 26 0 |
paul@0 | 4 | EELAYER END |
paul@0 | 5 | $Descr A4 11693 8268 |
paul@0 | 6 | encoding utf-8 |
paul@0 | 7 | Sheet 2 9 |
paul@0 | 8 | Title "" |
paul@0 | 9 | Date "" |
paul@0 | 10 | Rev "" |
paul@0 | 11 | Comp "" |
paul@0 | 12 | Comment1 "" |
paul@0 | 13 | Comment2 "" |
paul@0 | 14 | Comment3 "" |
paul@0 | 15 | Comment4 "" |
paul@0 | 16 | $EndDescr |
paul@0 | 17 | $Comp |
paul@0 | 18 | L Device:R R? |
paul@0 | 19 | U 1 1 61DF6407 |
paul@0 | 20 | P 2000 2900 |
paul@0 | 21 | AR Path="/61DF6407" Ref="R?" Part="1" |
paul@0 | 22 | AR Path="/61DF4BC2/61DF6407" Ref="R3" Part="1" |
paul@0 | 23 | F 0 "R3" V 1793 2900 50 0000 C CNN |
paul@0 | 24 | F 1 "330R" V 1884 2900 50 0000 C CNN |
paul@0 | 25 | F 2 "" V 1930 2900 50 0001 C CNN |
paul@0 | 26 | F 3 "~" H 2000 2900 50 0001 C CNN |
paul@0 | 27 | 1 2000 2900 |
paul@0 | 28 | 0 1 1 0 |
paul@0 | 29 | $EndComp |
paul@0 | 30 | $Comp |
paul@0 | 31 | L Device:R R? |
paul@0 | 32 | U 1 1 61DF640E |
paul@0 | 33 | P 2900 2900 |
paul@0 | 34 | AR Path="/61DF640E" Ref="R?" Part="1" |
paul@0 | 35 | AR Path="/61DF4BC2/61DF640E" Ref="R4" Part="1" |
paul@0 | 36 | F 0 "R4" V 2693 2900 50 0000 C CNN |
paul@0 | 37 | F 1 "330R" V 2784 2900 50 0000 C CNN |
paul@0 | 38 | F 2 "" V 2830 2900 50 0001 C CNN |
paul@0 | 39 | F 3 "~" H 2900 2900 50 0001 C CNN |
paul@0 | 40 | 1 2900 2900 |
paul@0 | 41 | 0 1 1 0 |
paul@0 | 42 | $EndComp |
paul@0 | 43 | $Comp |
paul@0 | 44 | L Device:Crystal X? |
paul@0 | 45 | U 1 1 61DF6415 |
paul@2 | 46 | P 2200 2600 |
paul@0 | 47 | AR Path="/61DF6415" Ref="X?" Part="1" |
paul@0 | 48 | AR Path="/61DF4BC2/61DF6415" Ref="X2" Part="1" |
paul@2 | 49 | F 0 "X2" H 2200 2868 50 0000 C CNN |
paul@2 | 50 | F 1 "17.7345MHz" H 2200 2777 50 0000 C CNN |
paul@2 | 51 | F 2 "" H 2200 2600 50 0001 C CNN |
paul@2 | 52 | F 3 "~" H 2200 2600 50 0001 C CNN |
paul@2 | 53 | 1 2200 2600 |
paul@0 | 54 | 1 0 0 -1 |
paul@0 | 55 | $EndComp |
paul@0 | 56 | $Comp |
paul@0 | 57 | L 74xx:74LS04 IC? |
paul@0 | 58 | U 1 1 61DF641C |
paul@0 | 59 | P 2000 3400 |
paul@0 | 60 | AR Path="/61DF641C" Ref="IC?" Part="1" |
paul@0 | 61 | AR Path="/61DF4BC2/61DF641C" Ref="IC8" Part="1" |
paul@0 | 62 | F 0 "IC8" H 2000 3717 50 0000 C CNN |
paul@0 | 63 | F 1 "74LS04" H 2000 3626 50 0000 C CNN |
paul@0 | 64 | F 2 "" H 2000 3400 50 0001 C CNN |
paul@0 | 65 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2000 3400 50 0001 C CNN |
paul@0 | 66 | 1 2000 3400 |
paul@0 | 67 | 1 0 0 -1 |
paul@0 | 68 | $EndComp |
paul@0 | 69 | $Comp |
paul@0 | 70 | L 74xx:74LS04 IC? |
paul@0 | 71 | U 2 1 61DF6423 |
paul@0 | 72 | P 2900 3400 |
paul@0 | 73 | AR Path="/61DF6423" Ref="IC?" Part="2" |
paul@0 | 74 | AR Path="/61DF4BC2/61DF6423" Ref="IC8" Part="2" |
paul@0 | 75 | F 0 "IC8" H 2900 3717 50 0000 C CNN |
paul@0 | 76 | F 1 "74LS04" H 2900 3626 50 0000 C CNN |
paul@0 | 77 | F 2 "" H 2900 3400 50 0001 C CNN |
paul@0 | 78 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2900 3400 50 0001 C CNN |
paul@0 | 79 | 2 2900 3400 |
paul@0 | 80 | 1 0 0 -1 |
paul@0 | 81 | $EndComp |
paul@0 | 82 | $Comp |
paul@0 | 83 | L 74xx:74LS04 IC? |
paul@0 | 84 | U 3 1 61DF642A |
paul@0 | 85 | P 3500 3400 |
paul@0 | 86 | AR Path="/61DF642A" Ref="IC?" Part="3" |
paul@0 | 87 | AR Path="/61DF4BC2/61DF642A" Ref="IC8" Part="3" |
paul@0 | 88 | F 0 "IC8" H 3500 3717 50 0000 C CNN |
paul@0 | 89 | F 1 "74LS04" H 3500 3626 50 0000 C CNN |
paul@0 | 90 | F 2 "" H 3500 3400 50 0001 C CNN |
paul@0 | 91 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 3500 3400 50 0001 C CNN |
paul@0 | 92 | 3 3500 3400 |
paul@0 | 93 | 1 0 0 -1 |
paul@0 | 94 | $EndComp |
paul@0 | 95 | $Comp |
paul@0 | 96 | L Device:C C? |
paul@0 | 97 | U 1 1 61DF6431 |
paul@0 | 98 | P 2450 3400 |
paul@0 | 99 | AR Path="/61DF6431" Ref="C?" Part="1" |
paul@0 | 100 | AR Path="/61DF4BC2/61DF6431" Ref="C5" Part="1" |
paul@0 | 101 | F 0 "C5" V 2198 3400 50 0000 C CNN |
paul@0 | 102 | F 1 "100pF" V 2289 3400 50 0000 C CNN |
paul@0 | 103 | F 2 "" H 2488 3250 50 0001 C CNN |
paul@0 | 104 | F 3 "~" H 2450 3400 50 0001 C CNN |
paul@0 | 105 | 1 2450 3400 |
paul@0 | 106 | 0 1 1 0 |
paul@0 | 107 | $EndComp |
paul@0 | 108 | $Comp |
paul@0 | 109 | L Device:C C? |
paul@0 | 110 | U 1 1 61DF6438 |
paul@0 | 111 | P 3500 2600 |
paul@0 | 112 | AR Path="/61DF6438" Ref="C?" Part="1" |
paul@0 | 113 | AR Path="/61DF4BC2/61DF6438" Ref="C6" Part="1" |
paul@0 | 114 | F 0 "C6" V 3248 2600 50 0000 C CNN |
paul@0 | 115 | F 1 "33pF" V 3339 2600 50 0000 C CNN |
paul@0 | 116 | F 2 "" H 3538 2450 50 0001 C CNN |
paul@0 | 117 | F 3 "~" H 3500 2600 50 0001 C CNN |
paul@0 | 118 | 1 3500 2600 |
paul@0 | 119 | 0 1 1 0 |
paul@0 | 120 | $EndComp |
paul@0 | 121 | Wire Wire Line |
paul@0 | 122 | 1700 3400 1700 2900 |
paul@0 | 123 | Wire Wire Line |
paul@2 | 124 | 1700 2600 2050 2600 |
paul@0 | 125 | Wire Wire Line |
paul@0 | 126 | 1700 2900 1850 2900 |
paul@0 | 127 | Connection ~ 1700 2900 |
paul@0 | 128 | Wire Wire Line |
paul@0 | 129 | 1700 2900 1700 2600 |
paul@0 | 130 | Wire Wire Line |
paul@0 | 131 | 2300 3400 2300 2900 |
paul@0 | 132 | Wire Wire Line |
paul@0 | 133 | 2300 2900 2150 2900 |
paul@0 | 134 | Connection ~ 2300 3400 |
paul@0 | 135 | Wire Wire Line |
paul@0 | 136 | 2600 3400 2600 2900 |
paul@0 | 137 | Wire Wire Line |
paul@0 | 138 | 2600 2900 2750 2900 |
paul@0 | 139 | Connection ~ 2600 3400 |
paul@0 | 140 | Wire Wire Line |
paul@0 | 141 | 3050 2900 3200 2900 |
paul@0 | 142 | Wire Wire Line |
paul@0 | 143 | 3200 2900 3200 3400 |
paul@0 | 144 | Connection ~ 3200 3400 |
paul@0 | 145 | Wire Wire Line |
paul@0 | 146 | 3200 2900 3200 2600 |
paul@0 | 147 | Wire Wire Line |
paul@2 | 148 | 3200 2600 2850 2600 |
paul@0 | 149 | Connection ~ 3200 2900 |
paul@0 | 150 | Wire Wire Line |
paul@0 | 151 | 3200 2600 3350 2600 |
paul@0 | 152 | Connection ~ 3200 2600 |
paul@0 | 153 | Text GLabel 3750 2600 2 50 Input ~ 0 |
paul@0 | 154 | 0V |
paul@0 | 155 | Wire Wire Line |
paul@0 | 156 | 3750 2600 3650 2600 |
paul@0 | 157 | Wire Wire Line |
paul@0 | 158 | 3800 3400 3900 3400 |
paul@0 | 159 | Text GLabel 3900 3400 2 50 Output ~ 0 |
paul@0 | 160 | CLOCK_VIDEO |
paul@0 | 161 | $Comp |
paul@0 | 162 | L Device:R R? |
paul@0 | 163 | U 1 1 61EEF884 |
paul@0 | 164 | P 2000 1300 |
paul@0 | 165 | AR Path="/61EEF884" Ref="R?" Part="1" |
paul@0 | 166 | AR Path="/61DF4BC2/61EEF884" Ref="R1" Part="1" |
paul@0 | 167 | F 0 "R1" V 1793 1300 50 0000 C CNN |
paul@0 | 168 | F 1 "330R" V 1884 1300 50 0000 C CNN |
paul@0 | 169 | F 2 "" V 1930 1300 50 0001 C CNN |
paul@0 | 170 | F 3 "~" H 2000 1300 50 0001 C CNN |
paul@0 | 171 | 1 2000 1300 |
paul@0 | 172 | 0 1 1 0 |
paul@0 | 173 | $EndComp |
paul@0 | 174 | $Comp |
paul@0 | 175 | L Device:R R? |
paul@0 | 176 | U 1 1 61EEF88B |
paul@0 | 177 | P 2900 1300 |
paul@0 | 178 | AR Path="/61EEF88B" Ref="R?" Part="1" |
paul@0 | 179 | AR Path="/61DF4BC2/61EEF88B" Ref="R2" Part="1" |
paul@0 | 180 | F 0 "R2" V 2693 1300 50 0000 C CNN |
paul@0 | 181 | F 1 "330R" V 2784 1300 50 0000 C CNN |
paul@0 | 182 | F 2 "" V 2830 1300 50 0001 C CNN |
paul@0 | 183 | F 3 "~" H 2900 1300 50 0001 C CNN |
paul@0 | 184 | 1 2900 1300 |
paul@0 | 185 | 0 1 1 0 |
paul@0 | 186 | $EndComp |
paul@0 | 187 | $Comp |
paul@0 | 188 | L Device:Crystal X? |
paul@0 | 189 | U 1 1 61EEF892 |
paul@0 | 190 | P 2450 1000 |
paul@0 | 191 | AR Path="/61EEF892" Ref="X?" Part="1" |
paul@0 | 192 | AR Path="/61DF4BC2/61EEF892" Ref="X1" Part="1" |
paul@0 | 193 | F 0 "X1" H 2450 1268 50 0000 C CNN |
paul@0 | 194 | F 1 "16MHz" H 2450 1177 50 0000 C CNN |
paul@0 | 195 | F 2 "" H 2450 1000 50 0001 C CNN |
paul@0 | 196 | F 3 "~" H 2450 1000 50 0001 C CNN |
paul@0 | 197 | 1 2450 1000 |
paul@0 | 198 | 1 0 0 -1 |
paul@0 | 199 | $EndComp |
paul@0 | 200 | $Comp |
paul@0 | 201 | L 74xx:74LS04 IC? |
paul@0 | 202 | U 6 1 61EEF899 |
paul@0 | 203 | P 2000 1800 |
paul@0 | 204 | AR Path="/61EEF899" Ref="IC?" Part="6" |
paul@0 | 205 | AR Path="/61DF4BC2/61EEF899" Ref="IC8" Part="6" |
paul@0 | 206 | F 0 "IC8" H 2000 2117 50 0000 C CNN |
paul@0 | 207 | F 1 "74LS04" H 2000 2026 50 0000 C CNN |
paul@0 | 208 | F 2 "" H 2000 1800 50 0001 C CNN |
paul@0 | 209 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2000 1800 50 0001 C CNN |
paul@0 | 210 | 6 2000 1800 |
paul@0 | 211 | 1 0 0 -1 |
paul@0 | 212 | $EndComp |
paul@0 | 213 | $Comp |
paul@0 | 214 | L 74xx:74LS04 IC? |
paul@0 | 215 | U 5 1 61EEF8A0 |
paul@0 | 216 | P 2900 1800 |
paul@0 | 217 | AR Path="/61EEF8A0" Ref="IC?" Part="5" |
paul@0 | 218 | AR Path="/61DF4BC2/61EEF8A0" Ref="IC8" Part="5" |
paul@0 | 219 | F 0 "IC8" H 2900 2117 50 0000 C CNN |
paul@0 | 220 | F 1 "74LS04" H 2900 2026 50 0000 C CNN |
paul@0 | 221 | F 2 "" H 2900 1800 50 0001 C CNN |
paul@0 | 222 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2900 1800 50 0001 C CNN |
paul@0 | 223 | 5 2900 1800 |
paul@0 | 224 | 1 0 0 -1 |
paul@0 | 225 | $EndComp |
paul@0 | 226 | $Comp |
paul@0 | 227 | L 74xx:74LS04 IC? |
paul@0 | 228 | U 4 1 61EEF8A7 |
paul@0 | 229 | P 3500 1800 |
paul@0 | 230 | AR Path="/61EEF8A7" Ref="IC?" Part="4" |
paul@0 | 231 | AR Path="/61DF4BC2/61EEF8A7" Ref="IC8" Part="4" |
paul@0 | 232 | F 0 "IC8" H 3500 2117 50 0000 C CNN |
paul@0 | 233 | F 1 "74LS04" H 3500 2026 50 0000 C CNN |
paul@0 | 234 | F 2 "" H 3500 1800 50 0001 C CNN |
paul@0 | 235 | F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 3500 1800 50 0001 C CNN |
paul@0 | 236 | 4 3500 1800 |
paul@0 | 237 | 1 0 0 -1 |
paul@0 | 238 | $EndComp |
paul@0 | 239 | $Comp |
paul@0 | 240 | L Device:C C? |
paul@0 | 241 | U 1 1 61EEF8AE |
paul@0 | 242 | P 2450 1800 |
paul@0 | 243 | AR Path="/61EEF8AE" Ref="C?" Part="1" |
paul@0 | 244 | AR Path="/61DF4BC2/61EEF8AE" Ref="C3" Part="1" |
paul@0 | 245 | F 0 "C3" V 2198 1800 50 0000 C CNN |
paul@0 | 246 | F 1 "100pF" V 2289 1800 50 0000 C CNN |
paul@0 | 247 | F 2 "" H 2488 1650 50 0001 C CNN |
paul@0 | 248 | F 3 "~" H 2450 1800 50 0001 C CNN |
paul@0 | 249 | 1 2450 1800 |
paul@0 | 250 | 0 1 1 0 |
paul@0 | 251 | $EndComp |
paul@0 | 252 | $Comp |
paul@0 | 253 | L Device:C C? |
paul@0 | 254 | U 1 1 61EEF8B5 |
paul@0 | 255 | P 3500 1000 |
paul@0 | 256 | AR Path="/61EEF8B5" Ref="C?" Part="1" |
paul@0 | 257 | AR Path="/61DF4BC2/61EEF8B5" Ref="C4" Part="1" |
paul@0 | 258 | F 0 "C4" V 3248 1000 50 0000 C CNN |
paul@0 | 259 | F 1 "33pF" V 3339 1000 50 0000 C CNN |
paul@0 | 260 | F 2 "" H 3538 850 50 0001 C CNN |
paul@0 | 261 | F 3 "~" H 3500 1000 50 0001 C CNN |
paul@0 | 262 | 1 3500 1000 |
paul@0 | 263 | 0 1 1 0 |
paul@0 | 264 | $EndComp |
paul@0 | 265 | Wire Wire Line |
paul@0 | 266 | 1700 1800 1700 1300 |
paul@0 | 267 | Wire Wire Line |
paul@0 | 268 | 1700 1000 2300 1000 |
paul@0 | 269 | Wire Wire Line |
paul@0 | 270 | 1700 1300 1850 1300 |
paul@0 | 271 | Connection ~ 1700 1300 |
paul@0 | 272 | Wire Wire Line |
paul@0 | 273 | 1700 1300 1700 1000 |
paul@0 | 274 | Wire Wire Line |
paul@0 | 275 | 2300 1800 2300 1300 |
paul@0 | 276 | Wire Wire Line |
paul@0 | 277 | 2300 1300 2150 1300 |
paul@0 | 278 | Connection ~ 2300 1800 |
paul@0 | 279 | Wire Wire Line |
paul@0 | 280 | 2600 1800 2600 1300 |
paul@0 | 281 | Wire Wire Line |
paul@0 | 282 | 2600 1300 2750 1300 |
paul@0 | 283 | Connection ~ 2600 1800 |
paul@0 | 284 | Wire Wire Line |
paul@0 | 285 | 3050 1300 3200 1300 |
paul@0 | 286 | Wire Wire Line |
paul@0 | 287 | 3200 1300 3200 1800 |
paul@0 | 288 | Connection ~ 3200 1800 |
paul@0 | 289 | Wire Wire Line |
paul@0 | 290 | 3200 1300 3200 1000 |
paul@0 | 291 | Wire Wire Line |
paul@0 | 292 | 3200 1000 2600 1000 |
paul@0 | 293 | Connection ~ 3200 1300 |
paul@0 | 294 | Wire Wire Line |
paul@0 | 295 | 3200 1000 3350 1000 |
paul@0 | 296 | Connection ~ 3200 1000 |
paul@0 | 297 | Text GLabel 3750 1000 2 50 Input ~ 0 |
paul@0 | 298 | 0V |
paul@0 | 299 | Wire Wire Line |
paul@0 | 300 | 3750 1000 3650 1000 |
paul@0 | 301 | Wire Wire Line |
paul@0 | 302 | 3800 1800 4100 1800 |
paul@0 | 303 | Text Notes 1600 1300 2 50 ~ 0 |
paul@0 | 304 | Service Manual indicates\n820R values.\nIssue 4 board suggests\ngrey, red, brown, gold. |
paul@0 | 305 | Text GLabel 5700 1100 2 50 Output ~ 0 |
paul@0 | 306 | CLOCK_16MHz |
paul@0 | 307 | $Comp |
paul@0 | 308 | L 74xx:74LS163 IC? |
paul@0 | 309 | U 1 1 61F9FB39 |
paul@0 | 310 | P 6500 2700 |
paul@0 | 311 | AR Path="/61F9FB39" Ref="IC?" Part="1" |
paul@0 | 312 | AR Path="/61DF4BC2/61F9FB39" Ref="IC9" Part="1" |
paul@0 | 313 | F 0 "IC9" H 6200 3600 50 0000 C CNN |
paul@0 | 314 | F 1 "74LS163" H 6200 3500 50 0000 C CNN |
paul@0 | 315 | F 2 "" H 6500 2700 50 0001 C CNN |
paul@0 | 316 | F 3 "http://www.ti.com/lit/gpn/sn74LS169" H 6500 2700 50 0001 C CNN |
paul@0 | 317 | 1 6500 2700 |
paul@0 | 318 | 1 0 0 -1 |
paul@0 | 319 | $EndComp |
paul@0 | 320 | Wire Wire Line |
paul@0 | 321 | 5900 2500 5900 2400 |
paul@0 | 322 | Wire Wire Line |
paul@0 | 323 | 5900 2400 6000 2400 |
paul@0 | 324 | Wire Wire Line |
paul@0 | 325 | 5900 2500 6000 2500 |
paul@0 | 326 | Wire Wire Line |
paul@0 | 327 | 7000 2500 7200 2500 |
paul@0 | 328 | Text GLabel 6500 3650 3 50 Input ~ 0 |
paul@0 | 329 | 0V |
paul@0 | 330 | Wire Wire Line |
paul@0 | 331 | 6500 3650 6500 3500 |
paul@0 | 332 | Text GLabel 6500 1800 1 50 Input ~ 0 |
paul@0 | 333 | 5V |
paul@0 | 334 | Wire Wire Line |
paul@0 | 335 | 6500 1900 6500 1800 |
paul@0 | 336 | Wire Wire Line |
paul@0 | 337 | 4100 3000 6000 3000 |
paul@0 | 338 | Text GLabel 5800 3200 0 50 Input ~ 0 |
paul@0 | 339 | 0V |
paul@0 | 340 | NoConn ~ 7000 2300 |
paul@0 | 341 | NoConn ~ 7000 2200 |
paul@0 | 342 | NoConn ~ 7000 2700 |
paul@0 | 343 | Wire Wire Line |
paul@0 | 344 | 5800 3200 5900 3200 |
paul@0 | 345 | Wire Wire Line |
paul@0 | 346 | 5900 2400 5900 2300 |
paul@0 | 347 | Wire Wire Line |
paul@0 | 348 | 5900 2300 6000 2300 |
paul@0 | 349 | Connection ~ 5900 2400 |
paul@0 | 350 | Wire Wire Line |
paul@0 | 351 | 5900 2300 5900 2200 |
paul@0 | 352 | Wire Wire Line |
paul@0 | 353 | 5900 2200 6000 2200 |
paul@0 | 354 | Connection ~ 5900 2300 |
paul@0 | 355 | $Comp |
paul@0 | 356 | L 74xx:74LS00 U? |
paul@0 | 357 | U 1 1 61F9FB55 |
paul@0 | 358 | P 7600 2500 |
paul@0 | 359 | AR Path="/61F9FB55" Ref="U?" Part="1" |
paul@1 | 360 | AR Path="/61DF4BC2/61F9FB55" Ref="IC17" Part="1" |
paul@1 | 361 | F 0 "IC17" H 7600 2825 50 0000 C CNN |
paul@0 | 362 | F 1 "74LS00" H 7600 2734 50 0000 C CNN |
paul@0 | 363 | F 2 "" H 7600 2500 50 0001 C CNN |
paul@0 | 364 | F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 7600 2500 50 0001 C CNN |
paul@0 | 365 | 1 7600 2500 |
paul@0 | 366 | 1 0 0 -1 |
paul@0 | 367 | $EndComp |
paul@0 | 368 | Wire Wire Line |
paul@0 | 369 | 7000 2400 7300 2400 |
paul@0 | 370 | Wire Wire Line |
paul@0 | 371 | 7200 2500 7200 2600 |
paul@0 | 372 | Wire Wire Line |
paul@0 | 373 | 7200 2600 7300 2600 |
paul@0 | 374 | Wire Wire Line |
paul@0 | 375 | 7900 2500 7900 1600 |
paul@0 | 376 | Wire Wire Line |
paul@0 | 377 | 7900 1600 5600 1600 |
paul@0 | 378 | Wire Wire Line |
paul@0 | 379 | 5600 1600 5600 2700 |
paul@0 | 380 | Wire Wire Line |
paul@0 | 381 | 5600 2700 6000 2700 |
paul@0 | 382 | Wire Wire Line |
paul@0 | 383 | 5900 2500 5900 2800 |
paul@0 | 384 | Connection ~ 5900 2500 |
paul@0 | 385 | Connection ~ 5900 3200 |
paul@0 | 386 | Wire Wire Line |
paul@0 | 387 | 5900 3200 6000 3200 |
paul@0 | 388 | Wire Wire Line |
paul@0 | 389 | 6000 2800 5900 2800 |
paul@0 | 390 | Connection ~ 5900 2800 |
paul@0 | 391 | Wire Wire Line |
paul@0 | 392 | 5900 2800 5900 2900 |
paul@0 | 393 | Wire Wire Line |
paul@0 | 394 | 6000 2900 5900 2900 |
paul@0 | 395 | Connection ~ 5900 2900 |
paul@0 | 396 | Wire Wire Line |
paul@0 | 397 | 5900 2900 5900 3200 |
paul@0 | 398 | Text Notes 6900 3300 0 50 ~ 0 |
paul@0 | 399 | Service Manual and issue 4\nuse 74LS169 for IC9. |
paul@0 | 400 | Wire Wire Line |
paul@0 | 401 | 4100 3000 4100 1800 |
paul@0 | 402 | Connection ~ 4100 1800 |
paul@0 | 403 | Wire Wire Line |
paul@0 | 404 | 4100 1800 4100 1200 |
paul@0 | 405 | Text GLabel 8100 2800 2 50 Output ~ 0 |
paul@0 | 406 | CLOCK_16MHz_DIV_13 |
paul@0 | 407 | Wire Wire Line |
paul@0 | 408 | 8100 2800 7200 2800 |
paul@0 | 409 | Wire Wire Line |
paul@0 | 410 | 7200 2800 7200 2600 |
paul@0 | 411 | Connection ~ 7200 2600 |
paul@0 | 412 | Text Notes 4200 2550 0 50 ~ 0 |
paul@0 | 413 | Issue 6 boards tend to have\nIC18 (74LS08) fitted for\nsome kind of buffering\nof the clock signal.\n\nWithout it, LK10 is made to\ndeliver the signal directly,\nbut LK10 seems not to be made. |
paul@0 | 414 | $Comp |
paul@0 | 415 | L 74xx:74LS08 IC18 |
paul@0 | 416 | U 3 1 61F98BCB |
paul@0 | 417 | P 5100 1100 |
paul@0 | 418 | F 0 "IC18" H 5100 1425 50 0000 C CNN |
paul@0 | 419 | F 1 "74LS08" H 5100 1334 50 0000 C CNN |
paul@0 | 420 | F 2 "" H 5100 1100 50 0001 C CNN |
paul@0 | 421 | F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 5100 1100 50 0001 C CNN |
paul@0 | 422 | 3 5100 1100 |
paul@0 | 423 | 1 0 0 -1 |
paul@0 | 424 | $EndComp |
paul@0 | 425 | Wire Wire Line |
paul@0 | 426 | 4100 1200 4800 1200 |
paul@0 | 427 | Text GLabel 4700 1000 0 50 Input ~ 0 |
paul@0 | 428 | BUFFER_ENABLE |
paul@0 | 429 | Wire Wire Line |
paul@0 | 430 | 4700 1000 4800 1000 |
paul@0 | 431 | Wire Wire Line |
paul@0 | 432 | 5700 1100 5500 1100 |
paul@0 | 433 | $Comp |
paul@0 | 434 | L Jumper:Jumper_2_Open LK10 |
paul@0 | 435 | U 1 1 61F9F418 |
paul@0 | 436 | P 4500 1800 |
paul@0 | 437 | F 0 "LK10" H 4500 2035 50 0000 C CNN |
paul@0 | 438 | F 1 "Disable buffer" H 4500 1944 50 0000 C CNN |
paul@0 | 439 | F 2 "" H 4500 1800 50 0001 C CNN |
paul@0 | 440 | F 3 "~" H 4500 1800 50 0001 C CNN |
paul@0 | 441 | 1 4500 1800 |
paul@0 | 442 | 1 0 0 -1 |
paul@0 | 443 | $EndComp |
paul@0 | 444 | Wire Wire Line |
paul@0 | 445 | 4100 1800 4300 1800 |
paul@0 | 446 | Wire Wire Line |
paul@0 | 447 | 4700 1800 5500 1800 |
paul@0 | 448 | Wire Wire Line |
paul@0 | 449 | 5500 1800 5500 1100 |
paul@0 | 450 | Connection ~ 5500 1100 |
paul@0 | 451 | Wire Wire Line |
paul@0 | 452 | 5500 1100 5400 1100 |
paul@1 | 453 | $Comp |
paul@1 | 454 | L 74xx:74LS00 IC17 |
paul@1 | 455 | U 5 1 61F8B195 |
paul@1 | 456 | P 9700 2700 |
paul@1 | 457 | F 0 "IC17" H 9930 2746 50 0000 L CNN |
paul@1 | 458 | F 1 "74LS00" H 9930 2655 50 0000 L CNN |
paul@1 | 459 | F 2 "" H 9700 2700 50 0001 C CNN |
paul@1 | 460 | F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 9700 2700 50 0001 C CNN |
paul@1 | 461 | 5 9700 2700 |
paul@1 | 462 | 1 0 0 -1 |
paul@1 | 463 | $EndComp |
paul@1 | 464 | Text GLabel 9700 2100 1 50 Input ~ 0 |
paul@1 | 465 | 5V |
paul@1 | 466 | Text GLabel 9700 3300 3 50 Input ~ 0 |
paul@1 | 467 | 0V |
paul@1 | 468 | Wire Wire Line |
paul@1 | 469 | 9700 2200 9700 2100 |
paul@1 | 470 | Wire Wire Line |
paul@1 | 471 | 9700 3300 9700 3200 |
paul@1 | 472 | Text Notes 8000 2300 0 50 ~ 0 |
paul@1 | 473 | IC17 label deduced from schematic. |
paul@2 | 474 | $Comp |
paul@2 | 475 | L Device:C_Variable VC1 |
paul@2 | 476 | U 1 1 61F8EF56 |
paul@2 | 477 | P 2700 2600 |
paul@2 | 478 | F 0 "VC1" V 2448 2600 50 0000 C CNN |
paul@2 | 479 | F 1 "5.5-40pF" V 2539 2600 50 0000 C CNN |
paul@2 | 480 | F 2 "" H 2700 2600 50 0001 C CNN |
paul@2 | 481 | F 3 "~" H 2700 2600 50 0001 C CNN |
paul@2 | 482 | 1 2700 2600 |
paul@2 | 483 | 0 1 1 0 |
paul@2 | 484 | $EndComp |
paul@2 | 485 | Wire Wire Line |
paul@2 | 486 | 2550 2600 2350 2600 |
paul@2 | 487 | Text Notes 1600 2650 2 50 ~ 0 |
paul@2 | 488 | PAL video clock circuit. |
paul@0 | 489 | $EndSCHEMATC |