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 8 11 8 Title "" 9 Date "" 10 Rev "" 11 Comp "" 12 Comment1 "" 13 Comment2 "" 14 Comment3 "" 15 Comment4 "" 16 $EndDescr 17 $Comp 18 L Device:R R31 19 U 1 1 61DEE018 20 P 4250 2600 21 F 0 "R31" V 4150 2600 50 0000 C CNN 22 F 1 "3900R" V 4350 2600 50 0000 C CNN 23 F 2 "" V 4180 2600 50 0001 C CNN 24 F 3 "~" H 4250 2600 50 0001 C CNN 25 1 4250 2600 26 0 1 1 0 27 $EndComp 28 $Comp 29 L Device:R R32 30 U 1 1 61DEE01F 31 P 4550 2800 32 F 0 "R32" V 4450 2800 50 0000 C CNN 33 F 1 "1000R" V 4650 2800 50 0000 C CNN 34 F 2 "" V 4480 2800 50 0001 C CNN 35 F 3 "~" H 4550 2800 50 0001 C CNN 36 1 4550 2800 37 0 1 1 0 38 $EndComp 39 $Comp 40 L Device:R R33 41 U 1 1 61DEE026 42 P 4250 3000 43 F 0 "R33" V 4150 3000 50 0000 C CNN 44 F 1 "2200R" V 4350 3000 50 0000 C CNN 45 F 2 "" V 4180 3000 50 0001 C CNN 46 F 3 "~" H 4250 3000 50 0001 C CNN 47 1 4250 3000 48 0 1 1 0 49 $EndComp 50 $Comp 51 L Device:R R45 52 U 1 1 61DEE04E 53 P 4350 1500 54 F 0 "R45" V 4250 1500 50 0000 C CNN 55 F 1 "68R" V 4450 1500 50 0000 C CNN 56 F 2 "" V 4280 1500 50 0001 C CNN 57 F 3 "~" H 4350 1500 50 0001 C CNN 58 1 4350 1500 59 0 1 1 0 60 $EndComp 61 $Comp 62 L Device:R R46 63 U 1 1 61DEE055 64 P 4650 1700 65 F 0 "R46" V 4550 1700 50 0000 C CNN 66 F 1 "68R" V 4750 1700 50 0000 C CNN 67 F 2 "" V 4580 1700 50 0001 C CNN 68 F 3 "~" H 4650 1700 50 0001 C CNN 69 1 4650 1700 70 0 1 1 0 71 $EndComp 72 $Comp 73 L Device:R R47 74 U 1 1 61DEE05C 75 P 4350 1900 76 F 0 "R47" V 4250 1900 50 0000 C CNN 77 F 1 "68R" V 4450 1900 50 0000 C CNN 78 F 2 "" V 4280 1900 50 0001 C CNN 79 F 3 "~" H 4350 1900 50 0001 C CNN 80 1 4350 1900 81 0 1 1 0 82 $EndComp 83 Wire Wire Line 84 4200 1500 4000 1500 85 Connection ~ 4000 1500 86 Wire Wire Line 87 3900 1700 4500 1700 88 Wire Wire Line 89 4200 1900 3800 1900 90 Connection ~ 3800 1900 91 Wire Wire Line 92 3800 1900 3800 3000 93 $Comp 94 L Connector:DIN-6 SK2 95 U 1 1 61DEE06D 96 P 6300 1800 97 F 0 "SK2" H 6500 1600 50 0000 C CNN 98 F 1 "RGB" H 6500 1500 50 0000 C CNN 99 F 2 "" H 6300 1800 50 0001 C CNN 100 F 3 "http://www.mouser.com/ds/2/18/40_c091_abd_e-75918.pdf" H 6300 1800 50 0001 C CNN 101 1 6300 1800 102 1 0 0 -1 103 $EndComp 104 Wire Wire Line 105 4800 1700 6000 1700 106 Wire Wire Line 107 4500 1500 6300 1500 108 Text GLabel 6700 1900 2 50 Input ~ 0 109 0V 110 Text GLabel 6300 2200 3 50 Input ~ 0 111 5V 112 Wire Wire Line 113 6300 2200 6300 2100 114 Wire Wire Line 115 6600 1200 6600 1700 116 $Comp 117 L Connector:Conn_Coaxial SK3 118 U 1 1 61DEE0F7 119 P 6300 2600 120 F 0 "SK3" H 6399 2576 50 0000 L CNN 121 F 1 "VIDEO" H 6399 2485 50 0000 L CNN 122 F 2 "" H 6300 2600 50 0001 C CNN 123 F 3 " ~" H 6300 2600 50 0001 C CNN 124 1 6300 2600 125 1 0 0 -1 126 $EndComp 127 Wire Wire Line 128 3900 2800 4400 2800 129 Connection ~ 3900 1700 130 Wire Wire Line 131 3800 3000 4100 3000 132 Wire Wire Line 133 4000 2600 4100 2600 134 Text GLabel 6300 2900 3 50 Input ~ 0 135 0V 136 Wire Wire Line 137 6300 2900 6300 2800 138 $Comp 139 L Device:R R39 140 U 1 1 61DEE107 141 P 4900 2350 142 F 0 "R39" H 4970 2396 50 0000 L CNN 143 F 1 "1000R" H 4970 2305 50 0000 L CNN 144 F 2 "" V 4830 2350 50 0001 C CNN 145 F 3 "~" H 4900 2350 50 0001 C CNN 146 1 4900 2350 147 1 0 0 -1 148 $EndComp 149 Wire Wire Line 150 6700 1900 6600 1900 151 Wire Wire Line 152 4500 1900 6000 1900 153 Text GLabel 4900 2100 1 50 Input ~ 0 154 5V 155 Wire Wire Line 156 4900 2100 4900 2200 157 $Comp 158 L Device:R R48 159 U 1 1 61DEE112 160 P 5500 2350 161 F 0 "R48" H 5570 2396 50 0000 L CNN 162 F 1 "68R" H 5570 2305 50 0000 L CNN 163 F 2 "" V 5430 2350 50 0001 C CNN 164 F 3 "~" H 5500 2350 50 0001 C CNN 165 1 5500 2350 166 1 0 0 -1 167 $EndComp 168 Text GLabel 5500 2100 1 50 Input ~ 0 169 5V 170 Wire Wire Line 171 5500 2200 5500 2100 172 $Comp 173 L Device:R R49 174 U 1 1 61DEE11B 175 P 5850 2600 176 F 0 "R49" V 5750 2600 50 0000 C CNN 177 F 1 "68R" V 5950 2600 50 0000 C CNN 178 F 2 "" V 5780 2600 50 0001 C CNN 179 F 3 "~" H 5850 2600 50 0001 C CNN 180 1 5850 2600 181 0 1 1 0 182 $EndComp 183 $Comp 184 L Device:R R40 185 U 1 1 61DEE122 186 P 5000 3050 187 F 0 "R40" H 5070 3096 50 0000 L CNN 188 F 1 "470R" H 5070 3005 50 0000 L CNN 189 F 2 "" V 4930 3050 50 0001 C CNN 190 F 3 "~" H 5000 3050 50 0001 C CNN 191 1 5000 3050 192 1 0 0 -1 193 $EndComp 194 $Comp 195 L bc309:BC309 Q8 196 U 1 1 61DEE129 197 P 5300 2800 198 F 0 "Q8" H 5491 2754 50 0000 L CNN 199 F 1 "BC309" H 5491 2845 50 0000 L CNN 200 F 2 "Package_TO_SOT_THT:TO-92_Inline" H 5500 2725 50 0001 L CIN 201 F 3 "https://www.futurlec.com/Transistors/BC309.shtml" H 5300 2800 50 0001 L CNN 202 1 5300 2800 203 1 0 0 1 204 $EndComp 205 Wire Wire Line 206 6100 2600 6000 2600 207 Wire Wire Line 208 5400 2600 5500 2600 209 Wire Wire Line 210 5500 2600 5500 2500 211 Connection ~ 5500 2600 212 Wire Wire Line 213 5500 2600 5700 2600 214 Wire Wire Line 215 4400 2600 4800 2600 216 Wire Wire Line 217 5100 2600 5100 2800 218 Wire Wire Line 219 4900 2600 4900 2500 220 Connection ~ 4900 2600 221 Wire Wire Line 222 4900 2600 5000 2600 223 Wire Wire Line 224 5000 2900 5000 2600 225 Connection ~ 5000 2600 226 Wire Wire Line 227 5000 2600 5100 2600 228 $Comp 229 L Device:R R34 230 U 1 1 61DEE13D 231 P 4550 3200 232 F 0 "R34" V 4450 3200 50 0000 C CNN 233 F 1 "1000R" V 4650 3200 50 0000 C CNN 234 F 2 "" V 4480 3200 50 0001 C CNN 235 F 3 "~" H 4550 3200 50 0001 C CNN 236 1 4550 3200 237 0 1 1 0 238 $EndComp 239 Wire Wire Line 240 3700 3200 4400 3200 241 Wire Wire Line 242 4800 2600 4800 2800 243 Wire Wire Line 244 4800 3200 4700 3200 245 Connection ~ 4800 2600 246 Wire Wire Line 247 4800 2600 4900 2600 248 Wire Wire Line 249 4400 3000 4800 3000 250 Connection ~ 4800 3000 251 Wire Wire Line 252 4800 3000 4800 3200 253 Wire Wire Line 254 4700 2800 4800 2800 255 Connection ~ 4800 2800 256 Wire Wire Line 257 4800 2800 4800 3000 258 Text GLabel 5000 3300 3 50 Input ~ 0 259 0V 260 Wire Wire Line 261 5000 3300 5000 3200 262 Text GLabel 5400 3300 3 50 Input ~ 0 263 0V 264 Wire Wire Line 265 5400 3300 5400 3000 266 Text GLabel 1100 1500 0 50 Input ~ 0 267 BLUE 268 Text GLabel 1100 1700 0 50 Input ~ 0 269 GREEN 270 Text GLabel 1100 1900 0 50 Input ~ 0 271 RED 272 Wire Wire Line 273 4000 1500 4000 2600 274 Wire Wire Line 275 3900 1700 3900 2800 276 Wire Wire Line 277 1100 1500 4000 1500 278 Wire Wire Line 279 1100 1700 3900 1700 280 Wire Wire Line 281 1100 1900 3800 1900 282 Wire Wire Line 283 3700 1300 3700 3200 284 $Comp 285 L Jumper:Jumper_2_Open LK4 286 U 1 1 62416A28 287 P 4500 4000 288 F 0 "LK4" H 4500 4235 50 0000 C CNN 289 F 1 "NF" H 4500 4144 50 0000 C CNN 290 F 2 "" H 4500 4000 50 0001 C CNN 291 F 3 "~" H 4500 4000 50 0001 C CNN 292 1 4500 4000 293 1 0 0 -1 294 $EndComp 295 Wire Wire Line 296 4700 4000 4800 4000 297 Wire Wire Line 298 4800 4000 4800 3200 299 Connection ~ 4800 3200 300 Text GLabel 4200 4000 0 50 Input ~ 0 301 UHF_IN 302 Wire Wire Line 303 4200 4000 4300 4000 304 Text Notes 3900 4200 0 50 ~ 0 305 For optional link from UHF circuit. 306 Text GLabel 1100 1300 0 50 UnSpc ~ 0 307 ~CSYNC_VIDEO 308 $Comp 309 L 74xx:74LS86 IC14 310 U 4 1 63EE1FF3 311 P 6000 1200 312 F 0 "IC14" H 6000 1525 50 0000 C CNN 313 F 1 "74LS86" H 6000 1434 50 0000 C CNN 314 F 2 "" H 6000 1200 50 0001 C CNN 315 F 3 "74xx/74ls86.pdf" H 6000 1200 50 0001 C CNN 316 4 6000 1200 317 1 0 0 -1 318 $EndComp 319 Wire Wire Line 320 6300 1200 6600 1200 321 Wire Wire Line 322 3700 1300 5700 1300 323 Wire Wire Line 324 5100 950 5100 1100 325 Wire Wire Line 326 5100 1100 5700 1100 327 Text GLabel 4700 800 0 50 Input ~ 0 328 0V 329 Text GLabel 5500 800 2 50 Input ~ 0 330 5V 331 Wire Wire Line 332 5350 800 5500 800 333 Wire Wire Line 334 4700 800 4850 800 335 $Comp 336 L Jumper:Jumper_3_Bridged12 LK3 337 U 1 1 63EF18F0 338 P 5100 800 339 F 0 "LK3" H 5100 1004 50 0000 C CNN 340 F 1 "Jumper_3_Bridged12" H 5100 913 50 0000 C CNN 341 F 2 "" H 5100 800 50 0001 C CNN 342 F 3 "~" H 5100 800 50 0001 C CNN 343 1 5100 800 344 1 0 0 -1 345 $EndComp 346 $Comp 347 L power:PWR_FLAG #FLG0101 348 U 1 1 63EF2C91 349 P 5100 1100 350 F 0 "#FLG0101" H 5100 1175 50 0001 C CNN 351 F 1 "PWR_FLAG" V 5100 1228 50 0000 L CNN 352 F 2 "" H 5100 1100 50 0001 C CNN 353 F 3 "~" H 5100 1100 50 0001 C CNN 354 1 5100 1100 355 0 -1 -1 0 356 $EndComp 357 Connection ~ 5100 1100 358 Wire Wire Line 359 1100 1300 3700 1300 360 Connection ~ 3700 1300 361 $EndSCHEMATC