1.1 --- a/AcornElectronMainboard.sch Tue Feb 07 14:28:37 2023 +0100
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2.1 --- a/CPU_ROM_KBD.sch Tue Feb 07 14:28:37 2023 +0100
2.2 +++ b/CPU_ROM_KBD.sch Tue Feb 07 14:51:31 2023 +0100
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4.1 --- a/RAM.sch Tue Feb 07 14:28:37 2023 +0100
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5.1 --- a/UHF.sch Tue Feb 07 14:28:37 2023 +0100
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5.128 -AR Path="/62411C42/61F9D03F" Ref="C13" Part="1"
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5.130 -F 1 "150pF" H 6000 1500 50 0000 R CNN
5.131 -F 2 "" H 6138 1300 50 0001 C CNN
5.132 -F 3 "~" H 6100 1450 50 0001 C CNN
5.133 - 1 6100 1450
5.134 - -1 0 0 1
5.135 -$EndComp
5.136 -$Comp
5.137 -L bc309:BC309 Q?
5.138 -U 1 1 61F9D049
5.139 -P 6500 1800
5.140 -AR Path="/61DB955D/61F9D049" Ref="Q?" Part="1"
5.141 -AR Path="/61DB955D/61DF7FF4/61F9D049" Ref="Q5" Part="1"
5.142 -AR Path="/62411C42/61F9D049" Ref="Q5" Part="1"
5.143 -F 0 "Q5" H 6691 1754 50 0000 L CNN
5.144 -F 1 "BC309" H 6691 1845 50 0000 L CNN
5.145 -F 2 "Package_TO_SOT_THT:TO-92_Inline" H 6700 1725 50 0001 L CIN
5.146 -F 3 "https://www.futurlec.com/Transistors/BC309.shtml" H 6500 1800 50 0001 L CNN
5.147 - 1 6500 1800
5.148 - 1 0 0 -1
5.149 -$EndComp
5.150 -Wire Wire Line
5.151 - 6600 1100 6600 1600
5.152 -Wire Wire Line
5.153 - 4600 1100 6100 1100
5.154 -Text GLabel 6700 1100 2 50 Input ~ 0
5.155 -0V
5.156 -Wire Wire Line
5.157 - 6700 1100 6600 1100
5.158 -Connection ~ 6600 1100
5.159 -$Comp
5.160 -L Device:R R?
5.161 -U 1 1 61F9D068
5.162 -P 7300 2100
5.163 -AR Path="/61DB955D/61F9D068" Ref="R?" Part="1"
5.164 -AR Path="/61DB955D/61DF7FF4/61F9D068" Ref="R22" Part="1"
5.165 -AR Path="/62411C42/61F9D068" Ref="R22" Part="1"
5.166 -F 0 "R22" V 7200 2100 50 0000 C CNN
5.167 -F 1 "1000R" V 7400 2100 50 0000 C CNN
5.168 -F 2 "" V 7230 2100 50 0001 C CNN
5.169 -F 3 "~" H 7300 2100 50 0001 C CNN
5.170 - 1 7300 2100
5.171 - 0 1 1 0
5.172 -$EndComp
5.173 -$Comp
5.174 -L Device:R R?
5.175 -U 1 1 61F9D06F
5.176 -P 7100 1750
5.177 -AR Path="/61DB955D/61F9D06F" Ref="R?" Part="1"
5.178 -AR Path="/61DB955D/61DF7FF4/61F9D06F" Ref="R21" Part="1"
5.179 -AR Path="/62411C42/61F9D06F" Ref="R21" Part="1"
5.180 -F 0 "R21" H 7050 1700 50 0000 R CNN
5.181 -F 1 "68R" H 7050 1800 50 0000 R CNN
5.182 -F 2 "" V 7030 1750 50 0001 C CNN
5.183 -F 3 "~" H 7100 1750 50 0001 C CNN
5.184 - 1 7100 1750
5.185 - -1 0 0 1
5.186 -$EndComp
5.187 -Text GLabel 7100 1500 1 50 Input ~ 0
5.188 -5V
5.189 -Wire Wire Line
5.190 - 7100 1500 7100 1600
5.191 -Wire Wire Line
5.192 - 7100 1900 7100 2100
5.193 -Connection ~ 7100 2100
5.194 -$Comp
5.195 -L Device:R R?
5.196 -U 1 1 61F9D07A
5.197 -P 7700 1750
5.198 -AR Path="/61DB955D/61F9D07A" Ref="R?" Part="1"
5.199 -AR Path="/61DB955D/61DF7FF4/61F9D07A" Ref="R26" Part="1"
5.200 -AR Path="/62411C42/61F9D07A" Ref="R26" Part="1"
5.201 -F 0 "R26" H 7750 1700 50 0000 L CNN
5.202 -F 1 "1800R" H 7750 1800 50 0000 L CNN
5.203 -F 2 "" V 7630 1750 50 0001 C CNN
5.204 -F 3 "~" H 7700 1750 50 0001 C CNN
5.205 - 1 7700 1750
5.206 - -1 0 0 1
5.207 -$EndComp
5.208 -Wire Wire Line
5.209 - 7450 2100 7700 2100
5.210 -Wire Wire Line
5.211 - 7700 2100 7700 1900
5.212 -Wire Wire Line
5.213 - 7100 2100 7150 2100
5.214 -Wire Wire Line
5.215 - 6600 2100 7100 2100
5.216 -Connection ~ 7700 2100
5.217 -Text GLabel 2200 800 0 50 Input ~ 0
5.218 -~CSYNC
5.219 -Wire Wire Line
5.220 - 2200 800 7700 800
5.221 -Wire Wire Line
5.222 - 7700 800 7700 1600
5.223 -Wire Wire Line
5.224 - 6600 2100 6600 2000
5.225 -Wire Wire Line
5.226 - 4600 1100 4600 1300
5.227 -Wire Wire Line
5.228 - 6100 1300 6100 1100
5.229 -Connection ~ 6100 1100
5.230 -Wire Wire Line
5.231 - 6100 1100 6600 1100
5.232 -Wire Wire Line
5.233 - 4600 1600 4600 1800
5.234 -Wire Wire Line
5.235 - 4600 1800 4800 1800
5.236 -Wire Wire Line
5.237 - 6100 1800 6100 1600
5.238 -Connection ~ 6100 1800
5.239 -Wire Wire Line
5.240 - 6100 1800 6300 1800
5.241 -$Comp
5.242 -L Diode:1N4148 D?
5.243 -U 1 1 62248B0E
5.244 -P 3550 1500
5.245 -AR Path="/61DB955D/62248B0E" Ref="D?" Part="1"
5.246 -AR Path="/61DB955D/61DF7FF4/62248B0E" Ref="D2" Part="1"
5.247 -AR Path="/62411C42/62248B0E" Ref="D2" Part="1"
5.248 -F 0 "D2" H 3550 1300 50 0000 C CNN
5.249 -F 1 "1N4148" H 3550 1400 50 0000 C CNN
5.250 -F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 3550 1325 50 0001 C CNN
5.251 -F 3 "http://www.nxp.com/documents/data_sheet/1N4148_1N4448.pdf" H 3550 1500 50 0001 C CNN
5.252 - 1 3550 1500
5.253 - -1 0 0 1
5.254 -$EndComp
5.255 -$Comp
5.256 -L Diode:1N4148 D?
5.257 -U 1 1 62248C2A
5.258 -P 3350 1200
5.259 -AR Path="/61DB955D/62248C2A" Ref="D?" Part="1"
5.260 -AR Path="/61DB955D/61DF7FF4/62248C2A" Ref="D3" Part="1"
5.261 -AR Path="/62411C42/62248C2A" Ref="D3" Part="1"
5.262 -F 0 "D3" H 3350 1000 50 0000 C CNN
5.263 -F 1 "1N4148" H 3350 1100 50 0000 C CNN
5.264 -F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 3350 1025 50 0001 C CNN
5.265 -F 3 "http://www.nxp.com/documents/data_sheet/1N4148_1N4448.pdf" H 3350 1200 50 0001 C CNN
5.266 - 1 3350 1200
5.267 - -1 0 0 1
5.268 -$EndComp
5.269 -Wire Wire Line
5.270 - 4100 1800 4000 1800
5.271 -Wire Wire Line
5.272 - 4000 1800 4000 1500
5.273 -Wire Wire Line
5.274 - 4000 1500 3700 1500
5.275 -Connection ~ 4000 1800
5.276 -Wire Wire Line
5.277 - 4000 1800 3900 1800
5.278 -Wire Wire Line
5.279 - 4000 1500 4000 1200
5.280 -Wire Wire Line
5.281 - 4000 1200 3500 1200
5.282 -Connection ~ 4000 1500
5.283 -Wire Wire Line
5.284 - 3600 1800 3500 1800
5.285 -Wire Wire Line
5.286 - 3500 1800 3500 3300
5.287 -Connection ~ 3500 3300
5.288 -Wire Wire Line
5.289 - 3500 3300 4500 3300
5.290 -Wire Wire Line
5.291 - 3400 1500 3300 1500
5.292 -Wire Wire Line
5.293 - 3300 1500 3300 3100
5.294 -Connection ~ 3300 3100
5.295 -Wire Wire Line
5.296 - 3300 3100 4300 3100
5.297 -Wire Wire Line
5.298 - 3200 1200 3100 1200
5.299 -Wire Wire Line
5.300 - 3100 1200 3100 2900
5.301 -Connection ~ 3100 2900
5.302 -Wire Wire Line
5.303 - 3100 2900 4100 2900
5.304 -Wire Wire Line
5.305 - 4400 1800 4600 1800
5.306 -Connection ~ 4600 1800
5.307 -Wire Wire Line
5.308 - 4900 2800 5000 2800
5.309 -Wire Wire Line
5.310 - 5000 2800 5000 1800
5.311 -Connection ~ 5000 1800
5.312 -Wire Wire Line
5.313 - 5000 1800 6100 1800
5.314 -Wire Wire Line
5.315 - 4600 2800 4500 2800
5.316 -Wire Wire Line
5.317 - 4500 2800 4500 3300
5.318 -Connection ~ 4500 3300
5.319 -Wire Wire Line
5.320 - 4500 3300 4900 3300
5.321 -Wire Wire Line
5.322 - 4700 2500 4900 2500
5.323 -Wire Wire Line
5.324 - 4900 2500 4900 1800
5.325 -Connection ~ 4900 1800
5.326 -Wire Wire Line
5.327 - 4900 1800 5000 1800
5.328 -Wire Wire Line
5.329 - 4400 2500 4300 2500
5.330 -Wire Wire Line
5.331 - 4300 2500 4300 3100
5.332 -Connection ~ 4300 3100
5.333 -Wire Wire Line
5.334 - 4300 3100 5000 3100
5.335 -Wire Wire Line
5.336 - 4500 2200 4800 2200
5.337 -Wire Wire Line
5.338 - 4800 2200 4800 1800
5.339 -Connection ~ 4800 1800
5.340 -Wire Wire Line
5.341 - 4800 1800 4900 1800
5.342 -Wire Wire Line
5.343 - 4200 2200 4100 2200
5.344 -Wire Wire Line
5.345 - 4100 2200 4100 2900
5.346 -Connection ~ 4100 2900
5.347 -Wire Wire Line
5.348 - 4100 2900 5500 2900
5.349 -$Comp
5.350 L Device:C C17
5.351 U 1 1 6241CD4D
5.352 P 10550 3300
5.353 @@ -1432,9 +1112,15 @@
5.354 Connection ~ 3850 5550
5.355 Wire Wire Line
5.356 3850 5550 3850 5850
5.357 -Text GLabel 7900 800 2 50 UnSpc ~ 0
5.358 -~CSYNC_COMMON
5.359 +Text GLabel 2200 2100 0 50 UnSpc ~ 0
5.360 +~CSYNC_UHF
5.361 +Wire Wire Line
5.362 + 2200 3300 4900 3300
5.363 Wire Wire Line
5.364 - 7700 800 7900 800
5.365 -Connection ~ 7700 800
5.366 + 2200 3100 5000 3100
5.367 +Wire Wire Line
5.368 + 2200 2900 5500 2900
5.369 +Wire Wire Line
5.370 + 8700 2100 2200 2100
5.371 +Connection ~ 8700 2100
5.372 $EndSCHEMATC
6.1 --- a/cassette.sch Tue Feb 07 14:28:37 2023 +0100
6.2 +++ b/cassette.sch Tue Feb 07 14:51:31 2023 +0100
6.3 @@ -4,7 +4,7 @@
6.4 EELAYER END
6.5 $Descr A4 11693 8268
6.6 encoding utf-8
6.7 -Sheet 4 10
6.8 +Sheet 4 11
6.9 Title ""
6.10 Date ""
6.11 Rev ""
7.1 --- a/clocks.sch Tue Feb 07 14:28:37 2023 +0100
7.2 +++ b/clocks.sch Tue Feb 07 14:51:31 2023 +0100
7.3 @@ -4,7 +4,7 @@
7.4 EELAYER END
7.5 $Descr A4 11693 8268
7.6 encoding utf-8
7.7 -Sheet 2 10
7.8 +Sheet 2 11
7.9 Title ""
7.10 Date ""
7.11 Rev ""
8.1 --- a/expansion.sch Tue Feb 07 14:28:37 2023 +0100
8.2 +++ b/expansion.sch Tue Feb 07 14:51:31 2023 +0100
8.3 @@ -4,7 +4,7 @@
8.4 EELAYER END
8.5 $Descr A4 11693 8268
8.6 encoding utf-8
8.7 -Sheet 6 10
8.8 +Sheet 6 11
8.9 Title ""
8.10 Date ""
8.11 Rev ""
9.1 --- a/power.sch Tue Feb 07 14:28:37 2023 +0100
9.2 +++ b/power.sch Tue Feb 07 14:51:31 2023 +0100
9.3 @@ -4,7 +4,7 @@
9.4 EELAYER END
9.5 $Descr A4 11693 8268
9.6 encoding utf-8
9.7 -Sheet 10 10
9.8 +Sheet 10 11
9.9 Title ""
9.10 Date ""
9.11 Rev ""
10.1 --- a/sound.sch Tue Feb 07 14:28:37 2023 +0100
10.2 +++ b/sound.sch Tue Feb 07 14:51:31 2023 +0100
10.3 @@ -4,7 +4,7 @@
10.4 EELAYER END
10.5 $Descr A4 11693 8268
10.6 encoding utf-8
10.7 -Sheet 5 10
10.8 +Sheet 5 11
10.9 Title ""
10.10 Date ""
10.11 Rev ""
11.1 --- a/video.sch Tue Feb 07 14:28:37 2023 +0100
11.2 +++ b/video.sch Tue Feb 07 14:51:31 2023 +0100
11.3 @@ -4,7 +4,7 @@
11.4 EELAYER END
11.5 $Descr A4 11693 8268
11.6 encoding utf-8
11.7 -Sheet 8 10
11.8 +Sheet 8 11
11.9 Title ""
11.10 Date ""
11.11 Rev ""
11.12 @@ -112,8 +112,6 @@
11.13 Wire Wire Line
11.14 6300 2200 6300 2100
11.15 Wire Wire Line
11.16 - 1000 1300 3700 1300
11.17 -Wire Wire Line
11.18 6600 1200 6600 1700
11.19 $Comp
11.20 L Connector:Conn_Coaxial SK3
11.21 @@ -265,24 +263,22 @@
11.22 0V
11.23 Wire Wire Line
11.24 5400 3300 5400 3000
11.25 -Text GLabel 1000 1300 0 50 Input ~ 0
11.26 -~CSYNC
11.27 -Text GLabel 1000 1500 0 50 Input ~ 0
11.28 +Text GLabel 1100 1500 0 50 Input ~ 0
11.29 BLUE
11.30 -Text GLabel 1000 1700 0 50 Input ~ 0
11.31 +Text GLabel 1100 1700 0 50 Input ~ 0
11.32 GREEN
11.33 -Text GLabel 1000 1900 0 50 Input ~ 0
11.34 +Text GLabel 1100 1900 0 50 Input ~ 0
11.35 RED
11.36 Wire Wire Line
11.37 4000 1500 4000 2600
11.38 Wire Wire Line
11.39 3900 1700 3900 2800
11.40 Wire Wire Line
11.41 - 1000 1500 4000 1500
11.42 + 1100 1500 4000 1500
11.43 Wire Wire Line
11.44 - 1000 1700 3900 1700
11.45 + 1100 1700 3900 1700
11.46 Wire Wire Line
11.47 - 1000 1900 3800 1900
11.48 + 1100 1900 3800 1900
11.49 Wire Wire Line
11.50 3700 1300 3700 3200
11.51 $Comp
11.52 @@ -307,11 +303,8 @@
11.53 4200 4000 4300 4000
11.54 Text Notes 3900 4200 0 50 ~ 0
11.55 For optional link from UHF circuit.
11.56 -Text GLabel 3500 3200 0 50 UnSpc ~ 0
11.57 -~CSYNC_COMMON
11.58 -Wire Wire Line
11.59 - 3500 3200 3700 3200
11.60 -Connection ~ 3700 3200
11.61 +Text GLabel 1100 1300 0 50 UnSpc ~ 0
11.62 +~CSYNC_VIDEO
11.63 $Comp
11.64 L 74xx:74LS86 IC14
11.65 U 4 1 63EE1FF3
11.66 @@ -327,7 +320,6 @@
11.67 6300 1200 6600 1200
11.68 Wire Wire Line
11.69 3700 1300 5700 1300
11.70 -Connection ~ 3700 1300
11.71 Wire Wire Line
11.72 5100 950 5100 1100
11.73 Wire Wire Line
11.74 @@ -363,4 +355,7 @@
11.75 0 -1 -1 0
11.76 $EndComp
11.77 Connection ~ 5100 1100
11.78 +Wire Wire Line
11.79 + 1100 1300 3700 1300
11.80 +Connection ~ 3700 1300
11.81 $EndSCHEMATC