1 EESchema Schematic File Version 4 2 LIBS:AcornElectronKeyboard-cache 3 EELAYER 26 0 4 EELAYER END 5 $Descr A4 11693 8268 6 encoding utf-8 7 Sheet 1 1 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_01x22 PL1 19 U 1 1 621BBC68 20 P 2000 1000 21 AR Path="/621BBC68" Ref="PL1" Part="1" 22 AR Path="/61F2273C/621BBC68" Ref="PL?" Part="1" 23 AR Path="/621BBAD2/621BBC68" Ref="PL?" 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H 7539 5228 50 0000 R CNN 773 F 2 "" H 7800 5400 50 0001 C CNN 774 F 3 "" H 7800 5400 50 0001 C CNN 775 1 7800 5400 776 1 0 0 -1 777 $EndComp 778 $Comp 779 L AcornElectronKeyboard:Keyswitch SW42 780 U 1 1 621C1069 781 P 8400 3600 782 F 0 "SW42" H 8139 3519 50 0000 R CNN 783 F 1 "0" H 8139 3428 50 0000 R CNN 784 F 2 "" H 8400 3600 50 0001 C CNN 785 F 3 "" H 8400 3600 50 0001 C CNN 786 1 8400 3600 787 1 0 0 -1 788 $EndComp 789 $Comp 790 L AcornElectronKeyboard:Keyswitch SW43 791 U 1 1 621C1070 792 P 8400 4200 793 F 0 "SW43" H 8139 4119 50 0000 R CNN 794 F 1 "P" H 8139 4028 50 0000 R CNN 795 F 2 "" H 8400 4200 50 0001 C CNN 796 F 3 "" H 8400 4200 50 0001 C CNN 797 1 8400 4200 798 1 0 0 -1 799 $EndComp 800 $Comp 801 L AcornElectronKeyboard:Keyswitch SW44 802 U 1 1 621C1077 803 P 8400 4800 804 F 0 "SW44" H 8139 4719 50 0000 R CNN 805 F 1 ";" H 8139 4628 50 0000 R CNN 806 F 2 "" H 8400 4800 50 0001 C CNN 807 F 3 "" H 8400 4800 50 0001 C CNN 808 1 8400 4800 809 1 0 0 -1 810 $EndComp 811 $Comp 812 L AcornElectronKeyboard:Keyswitch SW45 813 U 1 1 621C107E 814 P 8400 5400 815 F 0 "SW45" H 8139 5319 50 0000 R CNN 816 F 1 "/" H 8139 5228 50 0000 R CNN 817 F 2 "" H 8400 5400 50 0001 C CNN 818 F 3 "" H 8400 5400 50 0001 C CNN 819 1 8400 5400 820 1 0 0 -1 821 $EndComp 822 $Comp 823 L AcornElectronKeyboard:Keyswitch SW46 824 U 1 1 621C1085 825 P 9000 3600 826 F 0 "SW46" H 8739 3519 50 0000 R CNN 827 F 1 "-" H 8739 3428 50 0000 R CNN 828 F 2 "" H 9000 3600 50 0001 C CNN 829 F 3 "" H 9000 3600 50 0001 C CNN 830 1 9000 3600 831 1 0 0 -1 832 $EndComp 833 $Comp 834 L AcornElectronKeyboard:Keyswitch SW47 835 U 1 1 621C108C 836 P 9000 4200 837 F 0 "SW47" H 8739 4119 50 0000 R CNN 838 F 1 "Up" H 8739 4028 50 0000 R CNN 839 F 2 "" H 9000 4200 50 0001 C CNN 840 F 3 "" H 9000 4200 50 0001 C CNN 841 1 9000 4200 842 1 0 0 -1 843 $EndComp 844 $Comp 845 L AcornElectronKeyboard:Keyswitch SW48 846 U 1 1 621C1093 847 P 9000 4800 848 F 0 "SW48" H 8739 4719 50 0000 R CNN 849 F 1 ":" H 8739 4628 50 0000 R CNN 850 F 2 "" H 9000 4800 50 0001 C CNN 851 F 3 "" H 9000 4800 50 0001 C CNN 852 1 9000 4800 853 1 0 0 -1 854 $EndComp 855 $Comp 856 L AcornElectronKeyboard:Keyswitch SW49 857 U 1 1 621C10A1 858 P 9600 3600 859 F 0 "SW49" H 9339 3519 50 0000 R CNN 860 F 1 "Left" H 9339 3428 50 0000 R CNN 861 F 2 "" H 9600 3600 50 0001 C CNN 862 F 3 "" H 9600 3600 50 0001 C CNN 863 1 9600 3600 864 1 0 0 -1 865 $EndComp 866 $Comp 867 L AcornElectronKeyboard:Keyswitch SW50 868 U 1 1 621C10A8 869 P 9600 4200 870 F 0 "SW50" H 9340 4119 50 0000 R CNN 871 F 1 "Down" H 9340 4028 50 0000 R CNN 872 F 2 "" H 9600 4200 50 0001 C CNN 873 F 3 "" H 9600 4200 50 0001 C CNN 874 1 9600 4200 875 1 0 0 -1 876 $EndComp 877 $Comp 878 L AcornElectronKeyboard:Keyswitch SW51 879 U 1 1 621C10AF 880 P 9600 4800 881 F 0 "SW51" H 9340 4719 50 0000 R CNN 882 F 1 "Return" H 9340 4628 50 0000 R CNN 883 F 2 "" H 9600 4800 50 0001 C CNN 884 F 3 "" H 9600 4800 50 0001 C CNN 885 1 9600 4800 886 1 0 0 -1 887 $EndComp 888 $Comp 889 L AcornElectronKeyboard:Keyswitch SW52 890 U 1 1 621C10B6 891 P 9600 5400 892 F 0 "SW52" H 9340 5319 50 0000 R CNN 893 F 1 "Delete" H 9340 5228 50 0000 R CNN 894 F 2 "" H 9600 5400 50 0001 C CNN 895 F 3 "" H 9600 5400 50 0001 C CNN 896 1 9600 5400 897 1 0 0 -1 898 $EndComp 899 $Comp 900 L AcornElectronKeyboard:Keyswitch SW53 901 U 1 1 621C2072 902 P 10200 3600 903 F 0 "SW53" H 9940 3519 50 0000 R CNN 904 F 1 "Right" H 9940 3428 50 0000 R CNN 905 F 2 "" H 10200 3600 50 0001 C CNN 906 F 3 "" H 10200 3600 50 0001 C CNN 907 1 10200 3600 908 1 0 0 -1 909 $EndComp 910 $Comp 911 L AcornElectronKeyboard:Keyswitch SW54 912 U 1 1 621C2079 913 P 10200 4200 914 F 0 "SW54" H 9940 4119 50 0000 R CNN 915 F 1 "Copy" H 9940 4028 50 0000 R CNN 916 F 2 "" H 10200 4200 50 0001 C CNN 917 F 3 "" H 10200 4200 50 0001 C CNN 918 1 10200 4200 919 1 0 0 -1 920 $EndComp 921 $Comp 922 L AcornElectronKeyboard:Keyswitch SW55 923 U 1 1 621C2087 924 P 10200 5400 925 F 0 "SW55" H 9939 5319 50 0000 R CNN 926 F 1 "Space" H 9939 5228 50 0000 R CNN 927 F 2 "" H 10200 5400 50 0001 C CNN 928 F 3 "" H 10200 5400 50 0001 C CNN 929 1 10200 5400 930 1 0 0 -1 931 $EndComp 932 Wire Wire Line 933 3000 3100 3000 3850 934 Connection ~ 3000 3850 935 Wire Wire Line 936 3000 3850 3000 4450 937 Connection ~ 3000 4450 938 Wire Wire Line 939 3000 4450 3000 5050 940 Connection ~ 3000 5050 941 Wire Wire Line 942 3000 5050 3000 5650 943 Wire Wire Line 944 3600 3100 3600 3850 945 Connection ~ 3600 3850 946 Wire Wire Line 947 3600 3850 3600 4450 948 Connection ~ 3600 4450 949 Wire Wire Line 950 3600 4450 3600 5050 951 Connection ~ 3600 5050 952 Wire Wire Line 953 3600 5050 3600 5650 954 Wire Wire Line 955 4200 3100 4200 3850 956 Connection ~ 4200 3850 957 Wire Wire Line 958 4200 3850 4200 4450 959 Connection ~ 4200 4450 960 Wire Wire Line 961 4200 4450 4200 5050 962 Connection ~ 4200 5050 963 Wire Wire Line 964 4200 5050 4200 5650 965 Wire Wire Line 966 4800 3100 4800 3850 967 Connection ~ 4800 3850 968 Wire Wire Line 969 4800 3850 4800 4450 970 Connection ~ 4800 4450 971 Wire Wire Line 972 4800 4450 4800 5050 973 Connection ~ 4800 5050 974 Wire Wire Line 975 4800 5050 4800 5650 976 Wire Wire Line 977 5400 3100 5400 3850 978 Connection ~ 5400 3850 979 Wire Wire Line 980 5400 3850 5400 4450 981 Connection ~ 5400 4450 982 Wire Wire Line 983 5400 4450 5400 5050 984 Connection ~ 5400 5050 985 Wire Wire Line 986 5400 5050 5400 5650 987 Wire Wire Line 988 6000 3100 6000 3850 989 Connection ~ 6000 3850 990 Wire Wire Line 991 6000 3850 6000 4450 992 Connection ~ 6000 4450 993 Wire Wire Line 994 6000 4450 6000 5050 995 Connection ~ 6000 5050 996 Wire Wire Line 997 6000 5050 6000 5650 998 Wire Wire Line 999 6600 3100 6600 3850 1000 Connection ~ 6600 3850 1001 Wire Wire Line 1002 6600 3850 6600 4450 1003 Connection ~ 6600 4450 1004 Wire Wire Line 1005 6600 4450 6600 5050 1006 Connection ~ 6600 5050 1007 Wire Wire Line 1008 6600 5050 6600 5650 1009 Wire Wire Line 1010 7200 3100 7200 3850 1011 Connection ~ 7200 3850 1012 Wire Wire Line 1013 7200 3850 7200 4450 1014 Connection ~ 7200 4450 1015 Wire Wire Line 1016 7200 4450 7200 5050 1017 Connection ~ 7200 5050 1018 Wire Wire Line 1019 7200 5050 7200 5650 1020 Wire Wire Line 1021 7800 3100 7800 3850 1022 Connection ~ 7800 3850 1023 Wire Wire Line 1024 7800 3850 7800 4450 1025 Connection ~ 7800 4450 1026 Wire Wire Line 1027 7800 4450 7800 5050 1028 Connection ~ 7800 5050 1029 Wire Wire Line 1030 7800 5050 7800 5650 1031 Wire Wire Line 1032 8400 3100 8400 3850 1033 Connection ~ 8400 3850 1034 Wire Wire Line 1035 8400 3850 8400 4450 1036 Connection ~ 8400 4450 1037 Wire Wire Line 1038 8400 4450 8400 5050 1039 Connection ~ 8400 5050 1040 Wire Wire Line 1041 8400 5050 8400 5650 1042 Wire Wire Line 1043 9000 3100 9000 3850 1044 Connection ~ 9000 3850 1045 Wire Wire Line 1046 9000 3850 9000 4450 1047 Connection ~ 9000 4450 1048 Wire Wire Line 1049 9000 4450 9000 5050 1050 Wire Wire Line 1051 9600 3100 9600 3850 1052 Connection ~ 9600 3850 1053 Wire Wire Line 1054 9600 3850 9600 4450 1055 Connection ~ 9600 4450 1056 Wire Wire Line 1057 9600 4450 9600 5050 1058 Connection ~ 9600 5050 1059 Wire Wire Line 1060 9600 5050 9600 5650 1061 Wire Wire Line 1062 10200 3100 10200 3850 1063 Connection ~ 10200 3850 1064 Wire Wire Line 1065 10200 3850 10200 4450 1066 Connection ~ 10200 4450 1067 Wire Wire Line 1068 1400 3600 2200 3600 1069 Connection ~ 2200 3600 1070 Wire Wire Line 1071 2200 3600 2800 3600 1072 Connection ~ 2800 3600 1073 Wire Wire Line 1074 2800 3600 3400 3600 1075 Connection ~ 3400 3600 1076 Wire Wire Line 1077 3400 3600 4000 3600 1078 Connection ~ 4000 3600 1079 Wire Wire Line 1080 4000 3600 4600 3600 1081 Connection ~ 4600 3600 1082 Wire Wire Line 1083 4600 3600 5200 3600 1084 Connection ~ 5200 3600 1085 Wire Wire Line 1086 5200 3600 5800 3600 1087 Connection ~ 5800 3600 1088 Wire Wire Line 1089 5800 3600 6400 3600 1090 Connection ~ 6400 3600 1091 Wire Wire Line 1092 6400 3600 7000 3600 1093 Connection ~ 7000 3600 1094 Wire Wire Line 1095 7000 3600 7600 3600 1096 Connection ~ 7600 3600 1097 Wire Wire Line 1098 7600 3600 8200 3600 1099 Connection ~ 8200 3600 1100 Wire Wire Line 1101 8200 3600 8800 3600 1102 Connection ~ 8800 3600 1103 Wire Wire Line 1104 8800 3600 9400 3600 1105 Connection ~ 9400 3600 1106 Wire Wire Line 1107 9400 3600 10000 3600 1108 Wire Wire Line 1109 1500 4200 2200 4200 1110 Connection ~ 2200 4200 1111 Wire Wire Line 1112 2200 4200 2800 4200 1113 Connection ~ 2800 4200 1114 Wire Wire Line 1115 2800 4200 3400 4200 1116 Connection ~ 3400 4200 1117 Wire Wire Line 1118 3400 4200 4000 4200 1119 Connection ~ 4000 4200 1120 Wire Wire Line 1121 4000 4200 4600 4200 1122 Connection ~ 4600 4200 1123 Wire Wire Line 1124 4600 4200 5200 4200 1125 Connection ~ 5200 4200 1126 Wire Wire Line 1127 5200 4200 5800 4200 1128 Connection ~ 5800 4200 1129 Wire Wire Line 1130 5800 4200 6400 4200 1131 Connection ~ 6400 4200 1132 Wire Wire Line 1133 6400 4200 7000 4200 1134 Connection ~ 7000 4200 1135 Wire Wire Line 1136 7000 4200 7600 4200 1137 Connection ~ 7600 4200 1138 Wire Wire Line 1139 7600 4200 8200 4200 1140 Connection ~ 8200 4200 1141 Wire Wire Line 1142 8200 4200 8800 4200 1143 Connection ~ 8800 4200 1144 Wire Wire Line 1145 8800 4200 9400 4200 1146 Connection ~ 9400 4200 1147 Wire Wire Line 1148 9400 4200 10000 4200 1149 Wire Wire Line 1150 1600 4800 2200 4800 1151 Connection ~ 2200 4800 1152 Wire Wire Line 1153 2200 4800 2800 4800 1154 Connection ~ 2800 4800 1155 Wire Wire Line 1156 2800 4800 3400 4800 1157 Connection ~ 3400 4800 1158 Wire Wire Line 1159 3400 4800 4000 4800 1160 Connection ~ 4000 4800 1161 Wire Wire Line 1162 4000 4800 4600 4800 1163 Connection ~ 4600 4800 1164 Wire Wire Line 1165 4600 4800 5200 4800 1166 Connection ~ 5200 4800 1167 Wire Wire Line 1168 5200 4800 5800 4800 1169 Connection ~ 5800 4800 1170 Wire Wire Line 1171 5800 4800 6400 4800 1172 Connection ~ 6400 4800 1173 Wire Wire Line 1174 6400 4800 7000 4800 1175 Connection ~ 7000 4800 1176 Wire Wire Line 1177 7000 4800 7600 4800 1178 Connection ~ 7600 4800 1179 Wire Wire Line 1180 7600 4800 8200 4800 1181 Connection ~ 8200 4800 1182 Wire Wire Line 1183 8200 4800 8800 4800 1184 Connection ~ 8800 4800 1185 Wire Wire Line 1186 8800 4800 9400 4800 1187 Wire Wire Line 1188 1700 5400 2200 5400 1189 Connection ~ 2200 5400 1190 Wire Wire Line 1191 2200 5400 2800 5400 1192 Connection ~ 2800 5400 1193 Wire Wire Line 1194 2800 5400 3400 5400 1195 Connection ~ 3400 5400 1196 Wire Wire Line 1197 3400 5400 4000 5400 1198 Connection ~ 4000 5400 1199 Wire Wire Line 1200 4000 5400 4600 5400 1201 Connection ~ 4600 5400 1202 Wire Wire Line 1203 4600 5400 5200 5400 1204 Connection ~ 5200 5400 1205 Wire Wire Line 1206 5200 5400 5800 5400 1207 Connection ~ 5800 5400 1208 Wire Wire Line 1209 5800 5400 6400 5400 1210 Connection ~ 6400 5400 1211 Wire Wire Line 1212 6400 5400 7000 5400 1213 Connection ~ 7000 5400 1214 Wire Wire Line 1215 7000 5400 7600 5400 1216 Connection ~ 7600 5400 1217 Wire Wire Line 1218 7600 5400 8200 5400 1219 Connection ~ 8200 5400 1220 Connection ~ 9400 5400 1221 Wire Wire Line 1222 9400 5400 10000 5400 1223 Wire Wire Line 1224 8200 5400 9400 5400 1225 Wire Wire Line 1226 10200 4450 10200 5650 1227 Text GLabel 1300 1500 3 50 Output ~ 0 1228 5V 1229 Text GLabel 1200 1700 3 50 Output ~ 0 1230 0V 1231 Text GLabel 11000 3000 2 50 Input ~ 0 1232 5V 1233 $Comp 1234 L Device:R R2 1235 U 1 1 622063E0 1236 P 10700 3350 1237 F 0 "R2" H 10650 3400 50 0000 R CNN 1238 F 1 "15000R" H 10650 3300 50 0000 R CNN 1239 F 2 "" V 10630 3350 50 0001 C CNN 1240 F 3 "~" H 10700 3350 50 0001 C CNN 1241 1 10700 3350 1242 1 0 0 -1 1243 $EndComp 1244 Wire Wire Line 1245 10000 3600 10700 3600 1246 Wire Wire Line 1247 10700 3600 10700 3500 1248 Connection ~ 10000 3600 1249 Wire Wire Line 1250 10000 4200 10700 4200 1251 Wire Wire Line 1252 10700 4200 10700 4100 1253 Connection ~ 10000 4200 1254 Wire Wire Line 1255 9400 4800 10700 4800 1256 Wire Wire Line 1257 10700 4800 10700 4700 1258 Connection ~ 9400 4800 1259 Wire Wire Line 1260 10000 5400 10700 5400 1261 Wire Wire Line 1262 10700 5400 10700 5300 1263 Connection ~ 10000 5400 1264 Wire Wire Line 1265 10700 3200 10700 3000 1266 Wire Wire Line 1267 10700 3000 10900 3000 1268 Wire Wire Line 1269 10700 3800 10900 3800 1270 Wire Wire Line 1271 10900 3800 10900 3000 1272 Connection ~ 10900 3000 1273 Wire Wire Line 1274 10900 3000 11000 3000 1275 Wire Wire Line 1276 10700 4400 10900 4400 1277 Wire Wire Line 1278 10900 4400 10900 3800 1279 Connection ~ 10900 3800 1280 Wire Wire Line 1281 10700 5000 10900 5000 1282 Wire Wire Line 1283 10900 5000 10900 4400 1284 Connection ~ 10900 4400 1285 Text GLabel 750 2500 3 50 Input ~ 0 1286 0V 1287 Text GLabel 1700 6300 2 50 Input ~ 0 1288 5V 1289 Text GLabel 1700 6800 2 50 Input ~ 0 1290 0V 1291 $Comp 1292 L Device:C C1 1293 U 1 1 62247582 1294 P 1500 6550 1295 F 0 "C1" H 1615 6596 50 0000 L CNN 1296 F 1 "0.47??F" H 1615 6505 50 0000 L CNN 1297 F 2 "" H 1538 6400 50 0001 C CNN 1298 F 3 "~" H 1500 6550 50 0001 C CNN 1299 1 1500 6550 1300 1 0 0 -1 1301 $EndComp 1302 Wire Wire Line 1303 1500 6700 1500 6800 1304 Wire Wire Line 1305 1500 6800 1700 6800 1306 Wire Wire Line 1307 1500 6400 1500 6300 1308 Wire Wire Line 1309 1500 6300 1700 6300 1310 $Comp 1311 L Device:R R1 1312 U 1 1 622563BF 1313 P 1100 6050 1314 F 0 "R1" H 1170 6096 50 0000 L CNN 1315 F 1 "470R" H 1170 6005 50 0000 L CNN 1316 F 2 "" V 1030 6050 50 0001 C CNN 1317 F 3 "~" H 1100 6050 50 0001 C CNN 1318 1 1100 6050 1319 1 0 0 -1 1320 $EndComp 1321 $Comp 1322 L Device:LED D1 1323 U 1 1 6225652E 1324 P 1100 5550 1325 F 0 "D1" V 1045 5628 50 0000 L CNN 1326 F 1 "LED" V 1136 5628 50 0000 L CNN 1327 F 2 "" H 1100 5550 50 0001 C CNN 1328 F 3 "~" H 1100 5550 50 0001 C CNN 1329 1 1100 5550 1330 0 1 1 0 1331 $EndComp 1332 Wire Wire Line 1333 1500 6300 1100 6300 1334 Wire Wire Line 1335 1100 6300 1100 6200 1336 Connection ~ 1500 6300 1337 Wire Wire Line 1338 1100 5900 1100 5700 1339 $Comp 1340 L Device:R R3 1341 U 1 1 62271B97 1342 P 10700 3950 1343 F 0 "R3" H 10650 4000 50 0000 R CNN 1344 F 1 "15000R" H 10650 3900 50 0000 R CNN 1345 F 2 "" V 10630 3950 50 0001 C CNN 1346 F 3 "~" H 10700 3950 50 0001 C CNN 1347 1 10700 3950 1348 1 0 0 -1 1349 $EndComp 1350 $Comp 1351 L Device:R R4 1352 U 1 1 62271C51 1353 P 10700 4550 1354 F 0 "R4" H 10650 4600 50 0000 R CNN 1355 F 1 "15000R" H 10650 4500 50 0000 R CNN 1356 F 2 "" V 10630 4550 50 0001 C CNN 1357 F 3 "~" H 10700 4550 50 0001 C CNN 1358 1 10700 4550 1359 1 0 0 -1 1360 $EndComp 1361 $Comp 1362 L Device:R R5 1363 U 1 1 62271CFE 1364 P 10700 5150 1365 F 0 "R5" H 10650 5200 50 0000 R CNN 1366 F 1 "15000R" H 10650 5100 50 0000 R CNN 1367 F 2 "" V 10630 5150 50 0001 C CNN 1368 F 3 "~" H 10700 5150 50 0001 C CNN 1369 1 10700 5150 1370 1 0 0 -1 1371 $EndComp 1372 $Comp 1373 L AcornElectronKeyboard:Keyswitch SW1 1374 U 1 1 621F32E8 1375 P 1000 2100 1376 F 0 "SW1" V 602 1973 50 0000 C CNN 1377 F 1 "Break" V 693 1973 50 0000 C CNN 1378 F 2 "" H 1000 2100 50 0001 C CNN 1379 F 3 "" H 1000 2100 50 0001 C CNN 1380 1 1000 2100 1381 0 1 1 0 1382 $EndComp 1383 Wire Wire Line 1384 750 2100 750 2500 1385 $EndSCHEMATC