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 11 11 8 Title "" 9 Date "" 10 Rev "" 11 Comp "" 12 Comment1 "" 13 Comment2 "" 14 Comment3 "" 15 Comment4 "" 16 $EndDescr 17 Wire Wire Line 18 7000 2400 6800 2400 19 $Comp 20 L Device:R R? 21 U 1 1 63E403ED 22 P 3450 2500 23 AR Path="/61DB955D/63E403ED" Ref="R?" Part="1" 24 AR Path="/61DB955D/61DF7FF4/63E403ED" Ref="R?" Part="1" 25 AR Path="/62411C42/63E403ED" Ref="R?" Part="1" 26 AR Path="/63E3F56E/63E403ED" Ref="R19" Part="1" 27 F 0 "R19" V 3250 2500 50 0000 C CNN 28 F 1 "1500R" V 3350 2500 50 0000 C CNN 29 F 2 "" V 3380 2500 50 0001 C CNN 30 F 3 "~" H 3450 2500 50 0001 C CNN 31 1 3450 2500 32 0 1 1 0 33 $EndComp 34 $Comp 35 L Diode:1N4148 D? 36 U 1 1 63E403F4 37 P 2850 2100 38 AR Path="/61DB955D/63E403F4" Ref="D?" Part="1" 39 AR Path="/61DB955D/61DF7FF4/63E403F4" Ref="D?" Part="1" 40 AR Path="/62411C42/63E403F4" Ref="D?" Part="1" 41 AR Path="/63E3F56E/63E403F4" Ref="D1" Part="1" 42 F 0 "D1" H 2850 1900 50 0000 C CNN 43 F 1 "1N4148" H 2850 2000 50 0000 C CNN 44 F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 2850 1925 50 0001 C CNN 45 F 3 "http://www.nxp.com/documents/data_sheet/1N4148_1N4448.pdf" H 2850 2100 50 0001 C CNN 46 1 2850 2100 47 -1 0 0 1 48 $EndComp 49 $Comp 50 L Device:R R? 51 U 1 1 63E403FB 52 P 3350 2100 53 AR Path="/61DB955D/63E403FB" Ref="R?" Part="1" 54 AR Path="/61DB955D/61DF7FF4/63E403FB" Ref="R?" Part="1" 55 AR Path="/62411C42/63E403FB" Ref="R?" Part="1" 56 AR Path="/63E3F56E/63E403FB" Ref="R12" Part="1" 57 F 0 "R12" V 3550 2100 50 0000 C CNN 58 F 1 "2200R" V 3450 2100 50 0000 C CNN 59 F 2 "" V 3280 2100 50 0001 C CNN 60 F 3 "~" H 3350 2100 50 0001 C CNN 61 1 3350 2100 62 0 -1 -1 0 63 $EndComp 64 $Comp 65 L Device:R R? 66 U 1 1 63E40402 67 P 3700 1750 68 AR Path="/61DB955D/63E40402" Ref="R?" Part="1" 69 AR Path="/61DB955D/61DF7FF4/63E40402" Ref="R?" Part="1" 70 AR Path="/62411C42/63E40402" Ref="R?" Part="1" 71 AR Path="/63E3F56E/63E40402" Ref="R13" Part="1" 72 F 0 "R13" H 3900 1700 50 0000 R CNN 73 F 1 "470R" H 3750 1800 50 0000 L CNN 74 F 2 "" V 3630 1750 50 0001 C CNN 75 F 3 "~" H 3700 1750 50 0001 C CNN 76 1 3700 1750 77 -1 0 0 1 78 $EndComp 79 $Comp 80 L Device:C C? 81 U 1 1 63E40409 82 P 5200 1750 83 AR Path="/61DB955D/63E40409" Ref="C?" Part="1" 84 AR Path="/61DB955D/61DF7FF4/63E40409" Ref="C?" Part="1" 85 AR Path="/62411C42/63E40409" Ref="C?" Part="1" 86 AR Path="/63E3F56E/63E40409" Ref="C13" Part="1" 87 F 0 "C13" H 5100 1700 50 0000 R CNN 88 F 1 "150pF" H 5100 1800 50 0000 R CNN 89 F 2 "" H 5238 1600 50 0001 C CNN 90 F 3 "~" H 5200 1750 50 0001 C CNN 91 1 5200 1750 92 -1 0 0 1 93 $EndComp 94 $Comp 95 L bc309:BC309 Q? 96 U 1 1 63E40410 97 P 5600 2100 98 AR Path="/61DB955D/63E40410" Ref="Q?" Part="1" 99 AR Path="/61DB955D/61DF7FF4/63E40410" Ref="Q?" Part="1" 100 AR Path="/62411C42/63E40410" Ref="Q?" Part="1" 101 AR Path="/63E3F56E/63E40410" Ref="Q5" Part="1" 102 F 0 "Q5" H 5791 2054 50 0000 L CNN 103 F 1 "BC309" H 5791 2145 50 0000 L CNN 104 F 2 "Package_TO_SOT_THT:TO-92_Inline" H 5800 2025 50 0001 L CIN 105 F 3 "https://www.futurlec.com/Transistors/BC309.shtml" H 5600 2100 50 0001 L CNN 106 1 5600 2100 107 1 0 0 -1 108 $EndComp 109 Wire Wire Line 110 5700 1400 5700 1900 111 Wire Wire Line 112 3700 1400 5200 1400 113 Text GLabel 5800 1400 2 50 Input ~ 0 114 0V 115 Wire Wire Line 116 5800 1400 5700 1400 117 Connection ~ 5700 1400 118 $Comp 119 L Device:R R? 120 U 1 1 63E4041C 121 P 6400 2400 122 AR Path="/61DB955D/63E4041C" Ref="R?" Part="1" 123 AR Path="/61DB955D/61DF7FF4/63E4041C" Ref="R?" Part="1" 124 AR Path="/62411C42/63E4041C" Ref="R?" Part="1" 125 AR Path="/63E3F56E/63E4041C" Ref="R22" Part="1" 126 F 0 "R22" V 6300 2400 50 0000 C CNN 127 F 1 "1000R" V 6500 2400 50 0000 C CNN 128 F 2 "" V 6330 2400 50 0001 C CNN 129 F 3 "~" H 6400 2400 50 0001 C CNN 130 1 6400 2400 131 0 1 1 0 132 $EndComp 133 $Comp 134 L Device:R R? 135 U 1 1 63E40423 136 P 6200 2050 137 AR Path="/61DB955D/63E40423" Ref="R?" Part="1" 138 AR Path="/61DB955D/61DF7FF4/63E40423" Ref="R?" Part="1" 139 AR Path="/62411C42/63E40423" Ref="R?" Part="1" 140 AR Path="/63E3F56E/63E40423" Ref="R21" Part="1" 141 F 0 "R21" H 6150 2000 50 0000 R CNN 142 F 1 "68R" H 6150 2100 50 0000 R CNN 143 F 2 "" V 6130 2050 50 0001 C CNN 144 F 3 "~" H 6200 2050 50 0001 C CNN 145 1 6200 2050 146 -1 0 0 1 147 $EndComp 148 Text GLabel 6200 1800 1 50 Input ~ 0 149 5V 150 Wire Wire Line 151 6200 1800 6200 1900 152 Wire Wire Line 153 6200 2200 6200 2400 154 Connection ~ 6200 2400 155 $Comp 156 L Device:R R? 157 U 1 1 63E4042E 158 P 6800 2050 159 AR Path="/61DB955D/63E4042E" Ref="R?" Part="1" 160 AR Path="/61DB955D/61DF7FF4/63E4042E" Ref="R?" Part="1" 161 AR Path="/62411C42/63E4042E" Ref="R?" Part="1" 162 AR Path="/63E3F56E/63E4042E" Ref="R26" Part="1" 163 F 0 "R26" H 6850 2000 50 0000 L CNN 164 F 1 "1800R" H 6850 2100 50 0000 L CNN 165 F 2 "" V 6730 2050 50 0001 C CNN 166 F 3 "~" H 6800 2050 50 0001 C CNN 167 1 6800 2050 168 -1 0 0 1 169 $EndComp 170 Wire Wire Line 171 6550 2400 6800 2400 172 Wire Wire Line 173 6800 2400 6800 2200 174 Wire Wire Line 175 6200 2400 6250 2400 176 Wire Wire Line 177 5700 2400 6200 2400 178 Connection ~ 6800 2400 179 Text GLabel 1300 1100 0 50 Input ~ 0 180 ~CSYNC 181 Wire Wire Line 182 1300 1100 6800 1100 183 Wire Wire Line 184 6800 1100 6800 1900 185 Wire Wire Line 186 5700 2400 5700 2300 187 Wire Wire Line 188 3700 1400 3700 1600 189 Wire Wire Line 190 5200 1600 5200 1400 191 Connection ~ 5200 1400 192 Wire Wire Line 193 5200 1400 5700 1400 194 Wire Wire Line 195 3700 1900 3700 2100 196 Wire Wire Line 197 3700 2100 3900 2100 198 Wire Wire Line 199 5200 2100 5200 1900 200 Connection ~ 5200 2100 201 Wire Wire Line 202 5200 2100 5400 2100 203 $Comp 204 L Diode:1N4148 D? 205 U 1 1 63E40447 206 P 2650 1800 207 AR Path="/61DB955D/63E40447" Ref="D?" Part="1" 208 AR Path="/61DB955D/61DF7FF4/63E40447" Ref="D?" Part="1" 209 AR Path="/62411C42/63E40447" Ref="D?" Part="1" 210 AR Path="/63E3F56E/63E40447" Ref="D2" Part="1" 211 F 0 "D2" H 2650 1600 50 0000 C CNN 212 F 1 "1N4148" H 2650 1700 50 0000 C CNN 213 F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 2650 1625 50 0001 C CNN 214 F 3 "http://www.nxp.com/documents/data_sheet/1N4148_1N4448.pdf" H 2650 1800 50 0001 C CNN 215 1 2650 1800 216 -1 0 0 1 217 $EndComp 218 $Comp 219 L Diode:1N4148 D? 220 U 1 1 63E4044E 221 P 2450 1500 222 AR Path="/61DB955D/63E4044E" Ref="D?" Part="1" 223 AR Path="/61DB955D/61DF7FF4/63E4044E" Ref="D?" Part="1" 224 AR Path="/62411C42/63E4044E" Ref="D?" Part="1" 225 AR Path="/63E3F56E/63E4044E" Ref="D3" Part="1" 226 F 0 "D3" H 2450 1300 50 0000 C CNN 227 F 1 "1N4148" H 2450 1400 50 0000 C CNN 228 F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 2450 1325 50 0001 C CNN 229 F 3 "http://www.nxp.com/documents/data_sheet/1N4148_1N4448.pdf" H 2450 1500 50 0001 C CNN 230 1 2450 1500 231 -1 0 0 1 232 $EndComp 233 Wire Wire Line 234 3200 2100 3100 2100 235 Wire Wire Line 236 3100 2100 3100 1800 237 Wire Wire Line 238 3100 1800 2800 1800 239 Connection ~ 3100 2100 240 Wire Wire Line 241 3100 2100 3000 2100 242 Wire Wire Line 243 3100 1800 3100 1500 244 Wire Wire Line 245 3100 1500 2600 1500 246 Connection ~ 3100 1800 247 Wire Wire Line 248 2700 2100 2600 2100 249 Wire Wire Line 250 2600 2100 2600 3100 251 Wire Wire Line 252 2500 1800 2400 1800 253 Wire Wire Line 254 2400 1800 2400 2800 255 Wire Wire Line 256 2300 1500 2200 1500 257 Wire Wire Line 258 2200 1500 2200 2500 259 Wire Wire Line 260 3500 2100 3700 2100 261 Connection ~ 3700 2100 262 Wire Wire Line 263 4100 3100 4100 2100 264 Connection ~ 4100 2100 265 Wire Wire Line 266 4100 2100 5200 2100 267 Wire Wire Line 268 4000 2800 4000 2100 269 Connection ~ 4000 2100 270 Wire Wire Line 271 4000 2100 4100 2100 272 Wire Wire Line 273 3600 2500 3900 2500 274 Wire Wire Line 275 3900 2500 3900 2100 276 Connection ~ 3900 2100 277 Wire Wire Line 278 3900 2100 4000 2100 279 Wire Wire Line 280 3300 2500 2200 2500 281 Text GLabel 7000 1100 2 50 UnSpc ~ 0 282 ~CSYNC_VIDEO 283 Wire Wire Line 284 6800 1100 7000 1100 285 Connection ~ 6800 1100 286 $Comp 287 L Device:R R? 288 U 1 1 63E418BD 289 P 3850 3100 290 AR Path="/61DB955D/63E418BD" Ref="R?" Part="1" 291 AR Path="/61DB955D/61DF7FF4/63E418BD" Ref="R?" Part="1" 292 AR Path="/62411C42/63E418BD" Ref="R?" Part="1" 293 AR Path="/63E3F56E/63E418BD" Ref="R14" Part="1" 294 F 0 "R14" V 4050 3100 50 0000 C CNN 295 F 1 "3900R" V 3950 3100 50 0000 C CNN 296 F 2 "" V 3780 3100 50 0001 C CNN 297 F 3 "~" H 3850 3100 50 0001 C CNN 298 1 3850 3100 299 0 -1 -1 0 300 $EndComp 301 $Comp 302 L Device:R R? 303 U 1 1 63E418C4 304 P 3650 2800 305 AR Path="/61DB955D/63E418C4" Ref="R?" Part="1" 306 AR Path="/61DB955D/61DF7FF4/63E418C4" Ref="R?" Part="1" 307 AR Path="/62411C42/63E418C4" Ref="R?" Part="1" 308 AR Path="/63E3F56E/63E418C4" Ref="R16" Part="1" 309 F 0 "R16" V 3450 2800 50 0000 C CNN 310 F 1 "1000R" V 3550 2800 50 0000 C CNN 311 F 2 "" V 3580 2800 50 0001 C CNN 312 F 3 "~" H 3650 2800 50 0001 C CNN 313 1 3650 2800 314 0 1 1 0 315 $EndComp 316 Wire Wire Line 317 4000 3100 4100 3100 318 Wire Wire Line 319 3700 3100 2600 3100 320 Wire Wire Line 321 3800 2800 4000 2800 322 Wire Wire Line 323 3500 2800 2400 2800 324 Text GLabel 1300 2500 0 50 Input ~ 0 325 RED 326 Text GLabel 1300 2800 0 50 Input ~ 0 327 GREEN 328 Text GLabel 1300 3100 0 50 Input ~ 0 329 BLUE 330 Connection ~ 2200 2500 331 Wire Wire Line 332 2200 2500 1300 2500 333 Connection ~ 2400 2800 334 Wire Wire Line 335 2400 2800 1300 2800 336 Connection ~ 2600 3100 337 Wire Wire Line 338 2600 3100 1300 3100 339 Text GLabel 7000 2400 2 50 UnSpc ~ 0 340 ~CSYNC_UHF 341 $EndSCHEMATC