1.1 --- a/AcornElectronMainboard.pro Mon Jan 23 00:37:25 2023 +0100
1.2 +++ b/AcornElectronMainboard.pro Tue Jan 24 21:56:51 2023 +0100
1.3 @@ -1,4 +1,4 @@
1.4 -update=22/05/2015 07:44:53
1.5 +update=Tue 24 Jan 2023 21:57:29 CET
1.6 version=1
1.7 last_client=kicad
1.8 [general]
1.9 @@ -31,3 +31,13 @@
1.10 version=1
1.11 LibDir=
1.12 [eeschema/libraries]
1.13 +[schematic_editor]
1.14 +version=1
1.15 +PageLayoutDescrFile=
1.16 +PlotDirectoryName=
1.17 +SubpartIdSeparator=0
1.18 +SubpartFirstId=65
1.19 +NetFmtName=
1.20 +SpiceAjustPassiveValues=0
1.21 +LabSize=50
1.22 +ERC_TestSimilarLabels=1
2.1 --- a/AcornElectronMainboard.sch Mon Jan 23 00:37:25 2023 +0100
2.2 +++ b/AcornElectronMainboard.sch Tue Jan 24 21:56:51 2023 +0100
2.3 @@ -4,7 +4,7 @@
2.4 EELAYER END
2.5 $Descr A4 8268 11693 portrait
2.6 encoding utf-8
2.7 -Sheet 1 9
2.8 +Sheet 1 10
2.9 Title "Acorn Electron Mainboard"
2.10 Date ""
2.11 Rev ""
2.12 @@ -239,29 +239,6 @@
2.13 2200 3400 2900 3400
2.14 Wire Wire Line
2.15 2200 3500 2900 3500
2.16 -$Comp
2.17 -L Connector_Generic:Conn_01x03 PL3
2.18 -U 1 1 61CF9DF4
2.19 -P 1400 8900
2.20 -F 0 "PL3" H 1320 9217 50 0000 C CNN
2.21 -F 1 "Power" H 1320 9126 50 0000 C CNN
2.22 -F 2 "" H 1400 8900 50 0001 C CNN
2.23 -F 3 "~" H 1400 8900 50 0001 C CNN
2.24 - 1 1400 8900
2.25 - -1 0 0 -1
2.26 -$EndComp
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2.28 -5V
2.29 -Wire Wire Line
2.30 - 1600 8800 2100 8800
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2.32 -0V
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2.35 -Wire Wire Line
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2.37 -Wire Wire Line
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2.39 Text GLabel 3800 7100 3 50 Input ~ 0
2.40 0V
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2.42 @@ -332,121 +309,14 @@
2.43 3250 1500 3350 1500
2.44 Wire Wire Line
2.45 3350 1500 3350 1400
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2.48 -U 1 1 621AFB3A
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2.50 -F 0 "Ax19" H 2815 9096 50 0000 L CNN
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2.52 -F 2 "" H 2738 8900 50 0001 C CNN
2.53 -F 3 "~" H 2700 9050 50 0001 C CNN
2.54 - 1 2700 9050
2.55 - 1 0 0 -1
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2.57 -$Comp
2.58 -L Device:C Ax1
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2.64 -F 3 "~" H 2600 9550 50 0001 C CNN
2.65 - 1 2600 9550
2.66 - 1 0 0 -1
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2.69 -L Device:CP C1
2.70 -U 1 1 62245FAE
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2.75 -F 3 "~" H 2100 9050 50 0001 C CNN
2.76 - 1 2100 9050
2.77 - 1 0 0 -1
2.78 -$EndComp
2.79 -$Comp
2.80 -L Device:CP C2
2.81 -U 1 1 62245FF4
2.82 -P 2000 9550
2.83 -F 0 "C2" H 2118 9596 50 0000 L CNN
2.84 -F 1 "10µF/16V" H 2118 9505 38 0000 L CNN
2.85 -F 2 "" H 2038 9400 50 0001 C CNN
2.86 -F 3 "~" H 2000 9550 50 0001 C CNN
2.87 - 1 2000 9550
2.88 - 1 0 0 -1
2.89 -$EndComp
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2.92 -Wire Wire Line
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2.96 -Wire Wire Line
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2.98 -Connection ~ 2100 8800
2.99 -Wire Wire Line
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2.101 -Wire Wire Line
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2.103 -Connection ~ 2000 9300
2.104 -Wire Wire Line
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2.106 -Wire Wire Line
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2.108 -Connection ~ 2100 9300
2.109 -Wire Wire Line
2.110 - 2100 9300 2600 9300
2.111 -Wire Wire Line
2.112 - 2000 9700 2000 9800
2.113 -Connection ~ 2000 9800
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2.116 -Wire Wire Line
2.117 - 2600 9800 2600 9700
2.118 -Connection ~ 2600 9800
2.119 -Wire Wire Line
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2.121 -Connection ~ 2600 9300
2.122 -Wire Wire Line
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2.124 -Wire Wire Line
2.125 - 2700 9300 2700 9200
2.126 -Connection ~ 2700 9300
2.127 -Wire Wire Line
2.128 - 2700 8900 2700 8800
2.129 -Connection ~ 2700 8800
2.130 -$Comp
2.131 -L Connector_Generic:Conn_01x02 PL4
2.132 -U 1 1 627DA4FF
2.133 -P 1400 10100
2.134 -F 0 "PL4" H 1320 10317 50 0000 C CNN
2.135 -F 1 "Power" H 1320 10226 50 0000 C CNN
2.136 -F 2 "" H 1400 10100 50 0001 C CNN
2.137 -F 3 "~" H 1400 10100 50 0001 C CNN
2.138 - 1 1400 10100
2.139 - -1 0 0 -1
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2.141 Wire Wire Line
2.142 3600 6750 3600 7400
2.143 Wire Wire Line
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2.147 -Text Label 1600 8900 0 50 ~ 0
2.148 -0V
2.149 -Wire Wire Line
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2.151 -Text Label 1600 9000 0 50 ~ 0
2.152 --5V
2.153 -Text Label 1600 10100 0 50 ~ 0
2.154 -RETURN
2.155 -Text Label 1600 10200 0 50 ~ 0
2.156 -18VAC
2.157 Wire Wire Line
2.158 4600 7600 4600 6750
2.159 $Sheet
2.160 -S 2800 7800 700 300
2.161 +S 2800 8300 700 300
2.162 U 61DF4BC2
2.163 F0 "Clocks" 50
2.164 F1 "clocks.sch" 50
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2.166 Text GLabel 3500 7400 0 50 Input ~ 0
2.167 CLOCK_16MHz_DIV_13
2.168 $Sheet
2.169 -S 1200 1100 700 300
2.170 +S 1200 900 700 300
2.171 U 61D7EEE8
2.172 F0 "RAM" 50
2.173 F1 "RAM.sch" 50
2.174 @@ -468,7 +338,7 @@
2.175 Text GLabel 1700 2300 0 50 Output ~ 0
2.176 RA[0..7]
2.177 $Sheet
2.178 -S 5800 1300 700 300
2.179 +S 6700 900 700 300
2.180 U 624B50A6
2.181 F0 "Cassette" 50
2.182 F1 "cassette.sch" 50
2.183 @@ -482,7 +352,7 @@
2.184 Wire Wire Line
2.185 5600 1800 5800 1800
2.186 $Sheet
2.187 -S 5800 4200 700 300
2.188 +S 6700 4200 700 300
2.189 U 61E9B87F
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2.191 F1 "sound.sch" 50
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2.193 SOUND_OUTPUT
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2.196 -Text GLabel 2600 10100 2 50 UnSpc ~ 0
2.197 -POWER_AC_RETURN
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2.199 -POWER_18VAC
2.200 -Wire Wire Line
2.201 - 1600 10100 2100 10100
2.202 -Wire Wire Line
2.203 - 1600 10200 2100 10200
2.204 Wire Wire Line
2.205 3500 7600 4600 7600
2.206 Text GLabel 1700 6400 0 50 Output ~ 0
2.207 PHI_OUT
2.208 $Sheet
2.209 -S 1300 7800 700 300
2.210 +S 2800 8900 700 300
2.211 U 61FB7D7E
2.212 F0 "Expansion" 50
2.213 F1 "expansion.sch" 50
2.214 @@ -524,7 +386,7 @@
2.215 Text GLabel 2700 3700 0 50 Input ~ 0
2.216 ~RST
2.217 $Sheet
2.218 -S 1300 6800 700 300
2.219 +S 1300 8300 700 300
2.220 U 61F2273C
2.221 F0 "CPU, ROM, keyboard" 50
2.222 F1 "CPU_ROM_KBD.sch" 50
2.223 @@ -586,7 +448,7 @@
2.224 Wire Wire Line
2.225 1700 6400 2900 6400
2.226 $Sheet
2.227 -S 4800 7800 700 300
2.228 +S 4300 8900 700 300
2.229 U 61DB955D
2.230 F0 "Video" 50
2.231 F1 "video.sch" 50
2.232 @@ -657,7 +519,7 @@
2.233 Wire Wire Line
2.234 5600 2600 5800 2600
2.235 $Sheet
2.236 -S 4800 7200 700 300
2.237 +S 4300 8300 700 300
2.238 U 62411C42
2.239 F0 "UHF" 50
2.240 F1 "UHF.sch" 50
2.241 @@ -666,7 +528,7 @@
2.242 5600 6300 5800 6300
2.243 Wire Wire Line
2.244 5600 5900 6000 5900
2.245 -Text Notes 5800 9150 0 50 ~ 0
2.246 +Text Notes 6100 9100 0 50 ~ 0
2.247 Issue 6 boards tend to have\nIC19 (74LS08) fitted for\nsome kind of buffering\nof the video signals.\n\nLK7 is supposedly connected\nto +5V to ensure this.
2.248 $Comp
2.249 L 74xx:74LS08 IC19
2.250 @@ -712,17 +574,6 @@
2.251 4 6700 6700
2.252 1 0 0 -1
2.253 $EndComp
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2.255 -L 74xx:74LS08 IC19
2.256 -U 5 1 61E3E5E4
2.257 -P 7200 8900
2.258 -F 0 "IC19" H 7430 8946 50 0000 L CNN
2.259 -F 1 "74LS08" H 7430 8855 50 0000 L CNN
2.260 -F 2 "" H 7200 8900 50 0001 C CNN
2.261 -F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7200 8900 50 0001 C CNN
2.262 - 5 7200 8900
2.263 - 1 0 0 -1
2.264 -$EndComp
2.265 Wire Wire Line
2.266 5800 6300 5800 7800
2.267 Wire Wire Line
2.268 @@ -785,21 +636,11 @@
2.269 5V
2.270 Wire Wire Line
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2.272 -Text GLabel 7200 8300 1 50 Input ~ 0
2.273 -5V
2.274 -Wire Wire Line
2.275 - 7200 8300 7200 8400
2.276 -Text GLabel 7200 9500 3 50 Input ~ 0
2.277 -0V
2.278 -Wire Wire Line
2.279 - 7200 9500 7200 9400
2.280 Text GLabel 6100 8400 0 50 Output ~ 0
2.281 BUFFER_ENABLE
2.282 Wire Wire Line
2.283 6100 8400 6200 8400
2.284 Connection ~ 6200 8400
2.285 -Text Notes 1400 10600 0 50 ~ 0
2.286 -PL4 introduced for the two separate connections\non the original board.
2.287 Text Label 2100 5400 2 50 ~ 0
2.288 D[0..7]
2.289 Text Label 2100 3800 2 50 ~ 0
2.290 @@ -824,135 +665,11 @@
2.291 KBD2
2.292 Text Label 2900 3500 2 50 ~ 0
2.293 KBD3
2.294 -$Comp
2.295 -L power:PWR_FLAG #FLG0104
2.296 -U 1 1 62281B8F
2.297 -P 2100 10100
2.298 -F 0 "#FLG0104" H 2100 10175 50 0001 C CNN
2.299 -F 1 "PWR_FLAG" H 2100 10274 50 0000 C CNN
2.300 -F 2 "" H 2100 10100 50 0001 C CNN
2.301 -F 3 "~" H 2100 10100 50 0001 C CNN
2.302 - 1 2100 10100
2.303 - 1 0 0 -1
2.304 -$EndComp
2.305 -Connection ~ 2100 10100
2.306 -Wire Wire Line
2.307 - 2100 10100 2600 10100
2.308 -$Comp
2.309 -L power:PWR_FLAG #FLG0105
2.310 -U 1 1 62281BE9
2.311 -P 2100 10200
2.312 -F 0 "#FLG0105" H 2100 10275 50 0001 C CNN
2.313 -F 1 "PWR_FLAG" H 2100 10373 50 0000 C CNN
2.314 -F 2 "" H 2100 10200 50 0001 C CNN
2.315 -F 3 "~" H 2100 10200 50 0001 C CNN
2.316 - 1 2100 10200
2.317 - -1 0 0 1
2.318 -$EndComp
2.319 -Connection ~ 2100 10200
2.320 -Wire Wire Line
2.321 - 2100 10200 2600 10200
2.322 Wire Wire Line
2.323 4000 900 4000 800
2.324 Wire Wire Line
2.325 4000 1550 4000 1250
2.326 $Comp
2.327 -L power:+5V #PWR0101
2.328 -U 1 1 61F9A343
2.329 -P 3500 8600
2.330 -F 0 "#PWR0101" H 3500 8450 50 0001 C CNN
2.331 -F 1 "+5V" H 3515 8773 50 0000 C CNN
2.332 -F 2 "" H 3500 8600 50 0001 C CNN
2.333 -F 3 "" H 3500 8600 50 0001 C CNN
2.334 - 1 3500 8600
2.335 - 1 0 0 -1
2.336 -$EndComp
2.337 -$Comp
2.338 -L power:GND #PWR0102
2.339 -U 1 1 61FAE014
2.340 -P 3300 9500
2.341 -F 0 "#PWR0102" H 3300 9250 50 0001 C CNN
2.342 -F 1 "GND" H 3305 9327 50 0000 C CNN
2.343 -F 2 "" H 3300 9500 50 0001 C CNN
2.344 -F 3 "" H 3300 9500 50 0001 C CNN
2.345 - 1 3300 9500
2.346 - 1 0 0 -1
2.347 -$EndComp
2.348 -$Comp
2.349 -L power:-5V #PWR0103
2.350 -U 1 1 61FAE0AD
2.351 -P 3500 9600
2.352 -F 0 "#PWR0103" H 3500 9700 50 0001 C CNN
2.353 -F 1 "-5V" H 3515 9773 50 0000 C CNN
2.354 -F 2 "" H 3500 9600 50 0001 C CNN
2.355 -F 3 "" H 3500 9600 50 0001 C CNN
2.356 - 1 3500 9600
2.357 - 1 0 0 -1
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2.360 - 2700 8800 3500 8800
2.361 -Wire Wire Line
2.362 - 2600 9800 3500 9800
2.363 -Wire Wire Line
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2.365 -Connection ~ 3500 8800
2.366 -Wire Wire Line
2.367 - 3500 8800 3700 8800
2.368 -Wire Wire Line
2.369 - 3300 9500 3300 9400
2.370 -Connection ~ 3300 9300
2.371 -Wire Wire Line
2.372 - 3300 9300 3700 9300
2.373 -Wire Wire Line
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2.375 -Connection ~ 3500 9800
2.376 -Wire Wire Line
2.377 - 3500 9800 3700 9800
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2.380 -U 1 1 61FD1C8B
2.381 -P 3500 8700
2.382 -F 0 "#FLG0101" H 3500 8775 50 0001 C CNN
2.383 -F 1 "PWR_FLAG" V 3500 8828 50 0000 L CNN
2.384 -F 2 "" H 3500 8700 50 0001 C CNN
2.385 -F 3 "~" H 3500 8700 50 0001 C CNN
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2.393 -F 0 "#FLG0102" H 3500 9775 50 0001 C CNN
2.394 -F 1 "PWR_FLAG" V 3500 9828 50 0000 L CNN
2.395 -F 2 "" H 3500 9700 50 0001 C CNN
2.396 -F 3 "~" H 3500 9700 50 0001 C CNN
2.397 - 1 3500 9700
2.398 - 0 1 1 0
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2.404 -F 0 "#FLG0103" H 3300 9475 50 0001 C CNN
2.405 -F 1 "PWR_FLAG" V 3300 9528 50 0000 L CNN
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2.407 -F 3 "~" H 3300 9400 50 0001 C CNN
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2.419 -Connection ~ 3500 9700
2.420 -Wire Wire Line
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2.424 U 1 1 62024979
2.425 P 4000 1250
2.426 @@ -984,6 +701,12 @@
2.427 Note that KiCad gets upset\nwhen connecting passives\nto power input pins.
2.428 Wire Bus Line
2.429 1700 1600 2100 1600
2.430 +$Sheet
2.431 +S 1300 8900 700 300
2.432 +U 6460C88B
2.433 +F0 "Power" 50
2.434 +F1 "power.sch" 50
2.435 +$EndSheet
2.436 Wire Bus Line
2.437 2100 1600 2100 1900
2.438 Wire Bus Line
3.1 --- a/CPU_ROM_KBD.sch Mon Jan 23 00:37:25 2023 +0100
3.2 +++ b/CPU_ROM_KBD.sch Tue Jan 24 21:56:51 2023 +0100
3.3 @@ -4,7 +4,7 @@
3.4 EELAYER END
3.5 $Descr A4 11693 8268
3.6 encoding utf-8
3.7 -Sheet 7 9
3.8 +Sheet 7 10
3.9 Title ""
3.10 Date ""
3.11 Rev ""
3.12 @@ -20,8 +20,8 @@
3.13 P 5400 4050
3.14 AR Path="/61F22EDC" Ref="IC?" Part="1"
3.15 AR Path="/61F2273C/61F22EDC" Ref="IC3" Part="1"
3.16 -F 0 "IC3" H 5400 5528 50 0000 C CNN
3.17 -F 1 "6502A" H 5400 5437 50 0000 C CNN
3.18 +F 0 "IC3" H 5400 5450 50 0000 C CNN
3.19 +F 1 "6502A" H 5400 5350 50 0000 C CNN
3.20 F 2 "" H 5400 4050 50 0001 C CNN
3.21 F 3 "" H 5400 4050 50 0001 C CNN
3.22 1 5400 4050
3.23 @@ -148,8 +148,8 @@
3.24 P 3300 3700
3.25 AR Path="/61F22F23" Ref="IC?" Part="1"
3.26 AR Path="/61F2273C/61F22F23" Ref="IC2" Part="1"
3.27 -F 0 "IC2" H 3300 4600 50 0000 C CNN
3.28 -F 1 "ROM_32K" H 3300 4500 50 0000 C CNN
3.29 +F 0 "IC2" H 3300 4500 50 0000 C CNN
3.30 +F 1 "ROM_32K" H 3300 4400 50 0000 C CNN
3.31 F 2 "" H 3300 3700 50 0001 C CNN
3.32 F 3 "" H 3300 3700 50 0001 C CNN
3.33 1 3300 3700
3.34 @@ -232,21 +232,21 @@
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3.36 D7
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3.42 + 6400 3300 6500 3400
3.43 Entry Wire Line
3.44 - 6600 3400 6700 3500
3.45 + 6400 3400 6500 3500
3.46 Entry Wire Line
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3.48 + 6400 3500 6500 3600
3.49 Entry Wire Line
3.50 - 6600 3600 6700 3700
3.51 + 6400 3600 6500 3700
3.52 Entry Wire Line
3.53 - 6600 3700 6700 3800
3.54 + 6400 3700 6500 3800
3.55 Entry Wire Line
3.56 - 6600 3800 6700 3900
3.57 + 6400 3800 6500 3900
3.58 Entry Wire Line
3.59 - 6600 3900 6700 4000
3.60 + 6400 3900 6500 4000
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3.62 3900 3700 4000 3800
3.63 Entry Wire Line
3.64 @@ -441,11 +441,11 @@
3.65 1 0 0 1
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3.68 - 3800 3400 4100 3400
3.69 + 3800 3400 4200 3400
3.70 Wire Wire Line
3.71 - 4100 3400 4100 5000
3.72 + 4200 3400 4200 5000
3.73 Wire Wire Line
3.74 - 4100 5000 4450 5000
3.75 + 4200 5000 4450 5000
3.76 Wire Wire Line
3.77 4550 5000 4550 5100
3.78 Wire Wire Line
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3.81 5V
3.82 Wire Wire Line
3.83 - 5200 2750 5200 2400
3.84 + 5200 2750 5200 2500
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3.87 U 1 1 61F22FD5
3.88 -P 3750 2750
3.89 +P 3800 2500
3.90 AR Path="/61F22FD5" Ref="C?" Part="1"
3.91 AR Path="/61F2273C/61F22FD5" Ref="A1" Part="1"
3.92 -F 0 "A1" H 3865 2796 50 0000 L CNN
3.93 -F 1 "A" H 3865 2705 50 0000 L CNN
3.94 -F 2 "" H 3788 2600 50 0001 C CNN
3.95 -F 3 "~" H 3750 2750 50 0001 C CNN
3.96 - 1 3750 2750
3.97 - 1 0 0 -1
3.98 +F 0 "A1" H 3915 2546 50 0000 L CNN
3.99 +F 1 "47n/33n decoupler" H 3915 2455 50 0000 L CNN
3.100 +F 2 "" H 3838 2350 50 0001 C CNN
3.101 +F 3 "~" H 3800 2500 50 0001 C CNN
3.102 + 1 3800 2500
3.103 + 0 -1 -1 0
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3.106 0V
3.107 @@ -480,25 +480,15 @@
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3.109 3550 5700 3550 4900
3.110 Wire Wire Line
3.111 - 3550 4900 4200 4900
3.112 -Wire Wire Line
3.113 - 4200 4900 4200 3000
3.114 -Wire Wire Line
3.115 - 4200 3000 3750 3000
3.116 -Wire Wire Line
3.117 - 3750 3000 3750 2900
3.118 + 3550 4900 4100 4900
3.119 Connection ~ 3550 4900
3.120 Wire Wire Line
3.121 3550 4900 3550 4800
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3.124 -Wire Wire Line
3.125 - 3750 2500 3550 2500
3.126 Connection ~ 3550 2500
3.127 Wire Wire Line
3.128 3550 2500 3550 2400
3.129 Wire Wire Line
3.130 - 5300 5700 5300 5400
3.131 + 5300 5700 5300 5600
3.132 Wire Wire Line
3.133 5300 5400 5500 5400
3.134 Wire Wire Line
3.135 @@ -537,25 +527,25 @@
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3.137 5700 1300 7500 1300
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3.139 - 4000 6100 6700 6100
3.140 + 4000 6100 6500 6100
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3.142 5900 4700 6000 4700
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3.145 + 5900 3200 6400 3200
3.146 Wire Wire Line
3.147 - 5900 3300 6600 3300
3.148 + 5900 3300 6400 3300
3.149 Wire Wire Line
3.150 - 5900 3400 6600 3400
3.151 + 5900 3400 6400 3400
3.152 Wire Wire Line
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3.154 + 5900 3500 6400 3500
3.155 Wire Wire Line
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3.157 + 5900 3600 6400 3600
3.158 Wire Wire Line
3.159 - 5900 3700 6600 3700
3.160 + 5900 3700 6400 3700
3.161 Wire Wire Line
3.162 - 5900 3800 6600 3800
3.163 + 5900 3800 6400 3800
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4.1 --- a/RAM.sch Mon Jan 23 00:37:25 2023 +0100
4.2 +++ b/RAM.sch Tue Jan 24 21:56:51 2023 +0100
4.3 @@ -4,7 +4,7 @@
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4.570 Entry Wire Line
4.571 - 4700 1600 4800 1700
4.572 + 4700 1200 4800 1300
4.573 Entry Wire Line
4.574 - 3100 1600 3200 1700
4.575 + 3100 1200 3200 1300
4.576 Entry Wire Line
4.577 - 2900 1600 3000 1700
4.578 + 2900 1200 3000 1300
4.579 Entry Wire Line
4.580 - 1300 1600 1400 1700
4.581 + 1300 1200 1400 1300
4.582 Text GLabel 1000 1200 1 50 Input ~ 0
4.583 5V
4.584 Wire Wire Line
4.585 1000 1200 1000 3400
4.586 Wire Wire Line
4.587 - 7000 3000 7100 3000
4.588 + 7000 2600 7100 2600
4.589 Wire Wire Line
4.590 - 5200 3000 5300 3000
4.591 + 5200 2600 5300 2600
4.592 Wire Wire Line
4.593 - 3400 3000 3500 3000
4.594 + 3400 2600 3500 2600
4.595 Wire Wire Line
4.596 - 1600 3000 1700 3000
4.597 -Text GLabel 1600 1200 1 50 Input ~ 0
4.598 + 1600 2600 1700 2600
4.599 +Text GLabel 1600 800 1 50 Input ~ 0
4.600 0V
4.601 Wire Wire Line
4.602 - 1600 1200 1600 1400
4.603 + 1600 800 1600 1000
4.604 Wire Wire Line
4.605 - 8200 2300 7850 2300
4.606 + 8200 1900 7850 1900
4.607 Wire Wire Line
4.608 - 6050 2300 6400 2300
4.609 + 6050 1900 6400 1900
4.610 Wire Wire Line
4.611 - 4250 2300 4600 2300
4.612 + 4250 1900 4600 1900
4.613 Wire Wire Line
4.614 - 2450 2300 2800 2300
4.615 + 2450 1900 2800 1900
4.616 Wire Bus Line
4.617 8400 3500 8900 3500
4.618 -Text GLabel 8900 1600 2 50 BiDi ~ 0
4.619 +Text GLabel 8900 1200 2 50 BiDi ~ 0
4.620 RAM[0..3]
4.621 Text GLabel 8900 3500 2 50 Input ~ 0
4.622 RA[0..7]
4.623 @@ -428,364 +380,437 @@
4.624 Text GLabel 8650 3600 2 50 Input ~ 0
4.625 ~RAS
4.626 Wire Wire Line
4.627 - 1300 2500 1750 2500
4.628 -Text GLabel 8900 1900 2 50 Input ~ 0
4.629 + 1300 2100 1750 2100
4.630 +Text GLabel 8900 1400 2 50 Input ~ 0
4.631 ~CAS
4.632 Wire Wire Line
4.633 1300 3700 3100 3700
4.634 Wire Wire Line
4.635 - 1300 3700 1300 2500
4.636 + 1300 3700 1300 2100
4.637 Wire Wire Line
4.638 - 3550 2500 3100 2500
4.639 + 3550 2100 3100 2100
4.640 Wire Wire Line
4.641 - 3100 2500 3100 3700
4.642 + 3100 2100 3100 3700
4.643 Connection ~ 3100 3700
4.644 Wire Wire Line
4.645 3100 3700 4900 3700
4.646 Wire Wire Line
4.647 - 4900 2500 4900 3700
4.648 + 4900 2100 4900 3700
4.649 Connection ~ 4900 3700
4.650 Wire Wire Line
4.651 4900 3700 6700 3700
4.652 Wire Wire Line
4.653 - 6700 2500 6700 3700
4.654 + 6700 2100 6700 3700
4.655 Connection ~ 6700 3700
4.656 Wire Wire Line
4.657 6700 3700 8900 3700
4.658 Wire Wire Line
4.659 - 6800 2600 6800 3600
4.660 + 6800 2200 6800 3600
4.661 Wire Wire Line
4.662 6800 3600 8650 3600
4.663 Wire Wire Line
4.664 - 5000 2600 5000 3600
4.665 + 5000 2200 5000 3600
4.666 Wire Wire Line
4.667 5000 3600 6800 3600
4.668 Connection ~ 6800 3600
4.669 Wire Wire Line
4.670 - 3550 2600 3200 2600
4.671 + 3550 2200 3200 2200
4.672 Wire Wire Line
4.673 - 3200 2600 3200 3600
4.674 + 3200 2200 3200 3600
4.675 Wire Wire Line
4.676 3200 3600 5000 3600
4.677 Connection ~ 5000 3600
4.678 Wire Wire Line
4.679 - 1750 2600 1400 2600
4.680 + 1750 2200 1400 2200
4.681 Wire Wire Line
4.682 - 1400 2600 1400 3600
4.683 + 1400 2200 1400 3600
4.684 Wire Wire Line
4.685 1400 3600 3200 3600
4.686 Connection ~ 3200 3600
4.687 Wire Wire Line
4.688 - 8300 2400 8300 1900
4.689 + 8300 2000 8300 1400
4.690 Wire Wire Line
4.691 - 8300 1900 8900 1900
4.692 + 8300 1400 8900 1400
4.693 Wire Wire Line
4.694 - 6500 2400 6500 1900
4.695 + 6500 2000 6500 1400
4.696 Wire Wire Line
4.697 - 6500 1900 8300 1900
4.698 -Connection ~ 8300 1900
4.699 + 6500 1400 8300 1400
4.700 +Connection ~ 8300 1400
4.701 Wire Wire Line
4.702 - 4700 2400 4700 1900
4.703 + 4700 2000 4700 1400
4.704 Wire Wire Line
4.705 - 4700 1900 6500 1900
4.706 -Connection ~ 6500 1900
4.707 + 4700 1400 6500 1400
4.708 +Connection ~ 6500 1400
4.709 Wire Wire Line
4.710 - 2900 2400 2900 1900
4.711 + 2900 2000 2900 1400
4.712 Wire Wire Line
4.713 - 2900 1900 4700 1900
4.714 -Connection ~ 4700 1900
4.715 + 2900 1400 4700 1400
4.716 +Connection ~ 4700 1400
4.717 $Comp
4.718 L DRAM:TM4164EA4 IC20
4.719 U 1 1 623B101C
4.720 -P 1350 5250
4.721 +P 1550 5350
4.722 AR Path="/623B101C" Ref="IC20" Part="1"
4.723 AR Path="/61D7EEE8/623B101C" Ref="IC20" Part="1"
4.724 -F 0 "IC20" H 1072 5296 50 0000 R CNN
4.725 -F 1 "TM4164EA4" H 1072 5205 50 0000 R CNN
4.726 -F 2 "" H 1400 5750 50 0001 C CNN
4.727 -F 3 "" H 1400 5750 50 0001 C CNN
4.728 - 1 1350 5250
4.729 +F 0 "IC20" H 1272 5396 50 0000 R CNN
4.730 +F 1 "TM4164EA4" H 1272 5305 50 0000 R CNN
4.731 +F 2 "" H 1600 5850 50 0001 C CNN
4.732 +F 3 "" H 1600 5850 50 0001 C CNN
4.733 + 1 1550 5350
4.734 1 0 0 -1
4.735 $EndComp
4.736 -Text GLabel 1350 3900 1 50 Input ~ 0
4.737 +Text GLabel 1550 3900 1 50 Input ~ 0
4.738 5V
4.739 -Text GLabel 1350 6600 3 50 Input ~ 0
4.740 +Text GLabel 1550 7100 3 50 Input ~ 0
4.741 0V
4.742 Wire Wire Line
4.743 - 1350 3900 1350 4000
4.744 + 1550 3900 1550 4000
4.745 Wire Wire Line
4.746 - 1350 6600 1350 6500
4.747 -Text GLabel 8900 5000 2 50 Input ~ 0
4.748 + 1550 7100 1550 6800
4.749 +Text GLabel 8900 5100 2 50 Input ~ 0
4.750 RA[0..7]
4.751 Wire Bus Line
4.752 - 8900 5000 2100 5000
4.753 + 8900 5100 2400 5100
4.754 Entry Wire Line
4.755 - 2000 5100 2100 5000
4.756 + 2300 5200 2400 5100
4.757 Entry Wire Line
4.758 - 2000 5200 2100 5100
4.759 + 2300 5300 2400 5200
4.760 Entry Wire Line
4.761 - 2000 5300 2100 5200
4.762 + 2300 5400 2400 5300
4.763 Entry Wire Line
4.764 - 2000 5400 2100 5300
4.765 + 2300 5500 2400 5400
4.766 Entry Wire Line
4.767 - 2000 5500 2100 5400
4.768 + 2300 5600 2400 5500
4.769 Entry Wire Line
4.770 - 2000 5600 2100 5500
4.771 + 2300 5700 2400 5600
4.772 Entry Wire Line
4.773 - 2000 5700 2100 5600
4.774 + 2300 5800 2400 5700
4.775 Entry Wire Line
4.776 - 2000 5800 2100 5700
4.777 + 2300 5900 2400 5800
4.778 Wire Wire Line
4.779 - 1700 5100 2000 5100
4.780 + 1900 5200 2300 5200
4.781 Wire Wire Line
4.782 - 1700 5200 2000 5200
4.783 + 1900 5300 2300 5300
4.784 Wire Wire Line
4.785 - 1700 5300 2000 5300
4.786 + 1900 5400 2300 5400
4.787 Wire Wire Line
4.788 - 1700 5400 2000 5400
4.789 + 1900 5500 2300 5500
4.790 Wire Wire Line
4.791 - 1700 5500 2000 5500
4.792 + 1900 5600 2300 5600
4.793 Wire Wire Line
4.794 - 1700 5600 2000 5600
4.795 + 1900 5700 2300 5700
4.796 Wire Wire Line
4.797 - 1700 5700 2000 5700
4.798 + 1900 5800 2300 5800
4.799 Wire Wire Line
4.800 - 1700 5800 2000 5800
4.801 -NoConn ~ 1700 5900
4.802 -Text Label 1750 5100 0 50 ~ 0
4.803 + 1900 5900 2300 5900
4.804 +NoConn ~ 1900 6000
4.805 +Text Label 1950 5200 0 50 ~ 0
4.806 A0
4.807 -Text Label 1750 5200 0 50 ~ 0
4.808 +Text Label 1950 5300 0 50 ~ 0
4.809 A1
4.810 -Text Label 1750 5300 0 50 ~ 0
4.811 +Text Label 1950 5400 0 50 ~ 0
4.812 A2
4.813 -Text Label 1750 5400 0 50 ~ 0
4.814 +Text Label 1950 5500 0 50 ~ 0
4.815 A3
4.816 -Text Label 1750 5500 0 50 ~ 0
4.817 +Text Label 1950 5600 0 50 ~ 0
4.818 A4
4.819 -Text Label 1750 5600 0 50 ~ 0
4.820 +Text Label 1950 5700 0 50 ~ 0
4.821 A5
4.822 -Text Label 1750 5700 0 50 ~ 0
4.823 +Text Label 1950 5800 0 50 ~ 0
4.824 A6
4.825 -Text Label 1750 5800 0 50 ~ 0
4.826 +Text Label 1950 5900 0 50 ~ 0
4.827 A7
4.828 -Text GLabel 8900 4100 2 50 BiDi ~ 0
4.829 +Text GLabel 8900 4200 2 50 BiDi ~ 0
4.830 RAM[0..3]
4.831 Wire Bus Line
4.832 - 8900 4100 2100 4100
4.833 + 8900 4200 2400 4200
4.834 Entry Wire Line
4.835 - 2000 4200 2100 4100
4.836 + 2300 4300 2400 4200
4.837 Entry Wire Line
4.838 - 2000 4300 2100 4200
4.839 + 2300 4400 2400 4300
4.840 Entry Wire Line
4.841 - 2000 4400 2100 4300
4.842 + 2300 4500 2400 4400
4.843 Entry Wire Line
4.844 - 2000 4500 2100 4400
4.845 + 2300 4600 2400 4500
4.846 Entry Wire Line
4.847 - 2000 4600 2100 4500
4.848 + 2300 4700 2400 4600
4.849 Entry Wire Line
4.850 - 2000 4700 2100 4600
4.851 + 2300 4800 2400 4700
4.852 Entry Wire Line
4.853 - 2000 4800 2100 4700
4.854 + 2300 4900 2400 4800
4.855 Entry Wire Line
4.856 - 2000 4900 2100 4800
4.857 + 2300 5000 2400 4900
4.858 Wire Wire Line
4.859 - 1700 4200 2000 4200
4.860 + 1900 4300 2300 4300
4.861 Wire Wire Line
4.862 - 1700 4300 2000 4300
4.863 + 1900 4400 2300 4400
4.864 Wire Wire Line
4.865 - 1700 4400 2000 4400
4.866 + 1900 4500 2300 4500
4.867 Wire Wire Line
4.868 - 1700 4500 2000 4500
4.869 + 1900 4600 2300 4600
4.870 Wire Wire Line
4.871 - 1700 4600 2000 4600
4.872 + 1900 4700 2300 4700
4.873 Wire Wire Line
4.874 - 1700 4700 2000 4700
4.875 + 1900 4800 2300 4800
4.876 Wire Wire Line
4.877 - 1700 4800 2000 4800
4.878 + 1900 4900 2300 4900
4.879 Wire Wire Line
4.880 - 1700 4900 2000 4900
4.881 -Text Label 1750 4200 0 50 ~ 0
4.882 + 1900 5000 2300 5000
4.883 +Text Label 1950 4300 0 50 ~ 0
4.884 RAM0
4.885 -Text Label 1750 4400 0 50 ~ 0
4.886 +Text Label 1950 4500 0 50 ~ 0
4.887 RAM1
4.888 -Text Label 1750 4600 0 50 ~ 0
4.889 +Text Label 1950 4700 0 50 ~ 0
4.890 RAM2
4.891 -Text Label 1750 4800 0 50 ~ 0
4.892 +Text Label 1950 4900 0 50 ~ 0
4.893 RAM3
4.894 -Text Label 1750 4300 0 50 ~ 0
4.895 +Text Label 1950 4400 0 50 ~ 0
4.896 RAM0
4.897 -Text Label 1750 4500 0 50 ~ 0
4.898 +Text Label 1950 4600 0 50 ~ 0
4.899 RAM1
4.900 -Text Label 1750 4700 0 50 ~ 0
4.901 +Text Label 1950 4800 0 50 ~ 0
4.902 RAM2
4.903 -Text Label 1750 4900 0 50 ~ 0
4.904 +Text Label 1950 5000 0 50 ~ 0
4.905 RAM3
4.906 -Text Label 8850 5000 2 50 ~ 0
4.907 +Text Label 8850 5100 2 50 ~ 0
4.908 A[0..7]
4.909 -Text GLabel 8900 6100 2 50 Input ~ 0
4.910 +Text GLabel 8900 6200 2 50 Input ~ 0
4.911 ~CAS
4.912 -Text GLabel 8650 6200 2 50 Input ~ 0
4.913 +Text GLabel 8650 6300 2 50 Input ~ 0
4.914 ~RAS
4.915 -Text GLabel 8900 6300 2 50 Input ~ 0
4.916 +Text GLabel 8900 6400 2 50 Input ~ 0
4.917 ~WE
4.918 Wire Wire Line
4.919 - 8900 6100 1700 6100
4.920 + 8900 6200 1900 6200
4.921 Wire Wire Line
4.922 - 1700 6200 8650 6200
4.923 + 1900 6300 8650 6300
4.924 Wire Wire Line
4.925 - 1700 6300 8900 6300
4.926 -Text Notes 2100 4000 0 50 ~ 0
4.927 + 1900 6400 8900 6400
4.928 +Text Notes 2100 4100 0 50 ~ 0
4.929 Alternative DRAM single-in-line package
4.930 $Comp
4.931 L Device:C_Small A5
4.932 U 1 1 62D1023B
4.933 -P 7900 3200
4.934 -F 0 "A5" V 8050 3200 50 0000 C CNN
4.935 -F 1 "A" V 7750 3200 50 0000 C CNN
4.936 -F 2 "" H 7900 3200 50 0001 C CNN
4.937 -F 3 "~" H 7900 3200 50 0001 C CNN
4.938 - 1 7900 3200
4.939 +P 7650 3000
4.940 +F 0 "A5" V 7800 3000 50 0000 C CNN
4.941 +F 1 "47n/33n decoupler" V 7500 3000 50 0000 C CNN
4.942 +F 2 "" H 7650 3000 50 0001 C CNN
4.943 +F 3 "~" H 7650 3000 50 0001 C CNN
4.944 + 1 7650 3000
4.945 0 1 1 0
4.946 $EndComp
4.947 Wire Wire Line
4.948 - 8200 2300 8200 3200
4.949 + 8200 1900 8200 3000
4.950 Wire Wire Line
4.951 - 8200 3200 8000 3200
4.952 + 8200 3000 7750 3000
4.953 Wire Wire Line
4.954 - 7800 3200 7100 3200
4.955 + 7550 3000 7100 3000
4.956 Wire Wire Line
4.957 - 7100 3200 7100 3000
4.958 + 7100 3000 7100 2600
4.959 Wire Wire Line
4.960 - 7100 3000 7150 3000
4.961 -Connection ~ 7100 3000
4.962 + 7100 2600 7150 2600
4.963 +Connection ~ 7100 2600
4.964 Wire Wire Line
4.965 - 1600 1400 2800 1400
4.966 + 1600 1000 2800 1000
4.967 $Comp
4.968 L Device:C_Small A4
4.969 U 1 1 62DF3EF5
4.970 -P 6100 3200
4.971 -F 0 "A4" V 6250 3200 50 0000 C CNN
4.972 -F 1 "A" V 5950 3200 50 0000 C CNN
4.973 -F 2 "" H 6100 3200 50 0001 C CNN
4.974 -F 3 "~" H 6100 3200 50 0001 C CNN
4.975 - 1 6100 3200
4.976 +P 5850 3000
4.977 +F 0 "A4" V 6000 3000 50 0000 C CNN
4.978 +F 1 "47n/33n decoupler" V 5700 3000 50 0000 C CNN
4.979 +F 2 "" H 5850 3000 50 0001 C CNN
4.980 +F 3 "~" H 5850 3000 50 0001 C CNN
4.981 + 1 5850 3000
4.982 0 1 1 0
4.983 $EndComp
4.984 Wire Wire Line
4.985 - 6400 2300 6400 3200
4.986 + 6400 1900 6400 3000
4.987 Wire Wire Line
4.988 - 6400 3200 6200 3200
4.989 + 6400 3000 5950 3000
4.990 Wire Wire Line
4.991 - 6000 3200 5300 3200
4.992 + 5750 3000 5300 3000
4.993 Wire Wire Line
4.994 - 5300 3200 5300 3000
4.995 -Connection ~ 5300 3000
4.996 + 5300 3000 5300 2600
4.997 +Connection ~ 5300 2600
4.998 Wire Wire Line
4.999 - 5300 3000 5350 3000
4.1000 + 5300 2600 5350 2600
4.1001 $Comp
4.1002 L Device:C_Small A3
4.1003 U 1 1 62E816E9
4.1004 -P 4300 3200
4.1005 -F 0 "A3" V 4450 3200 50 0000 C CNN
4.1006 -F 1 "A" V 4150 3200 50 0000 C CNN
4.1007 -F 2 "" H 4300 3200 50 0001 C CNN
4.1008 -F 3 "~" H 4300 3200 50 0001 C CNN
4.1009 - 1 4300 3200
4.1010 +P 4050 3000
4.1011 +F 0 "A3" V 4200 3000 50 0000 C CNN
4.1012 +F 1 "47n/33n decoupler" V 3900 3000 50 0000 C CNN
4.1013 +F 2 "" H 4050 3000 50 0001 C CNN
4.1014 +F 3 "~" H 4050 3000 50 0001 C CNN
4.1015 + 1 4050 3000
4.1016 0 1 1 0
4.1017 $EndComp
4.1018 Wire Wire Line
4.1019 - 4600 2300 4600 3200
4.1020 + 4600 1900 4600 3000
4.1021 Wire Wire Line
4.1022 - 4600 3200 4400 3200
4.1023 + 4600 3000 4150 3000
4.1024 Wire Wire Line
4.1025 - 4200 3200 3500 3200
4.1026 + 3950 3000 3500 3000
4.1027 Wire Wire Line
4.1028 - 3500 3200 3500 3000
4.1029 -Connection ~ 3500 3000
4.1030 + 3500 3000 3500 2600
4.1031 +Connection ~ 3500 2600
4.1032 Wire Wire Line
4.1033 - 3500 3000 3550 3000
4.1034 + 3500 2600 3550 2600
4.1035 $Comp
4.1036 L Device:C_Small A2
4.1037 U 1 1 62F3C917
4.1038 -P 2500 3200
4.1039 -F 0 "A2" V 2650 3200 50 0000 C CNN
4.1040 -F 1 "A" V 2350 3200 50 0000 C CNN
4.1041 -F 2 "" H 2500 3200 50 0001 C CNN
4.1042 -F 3 "~" H 2500 3200 50 0001 C CNN
4.1043 - 1 2500 3200
4.1044 +P 2250 3000
4.1045 +F 0 "A2" V 2400 3000 50 0000 C CNN
4.1046 +F 1 "47n/33n decoupler" V 2100 3000 50 0000 C CNN
4.1047 +F 2 "" H 2250 3000 50 0001 C CNN
4.1048 +F 3 "~" H 2250 3000 50 0001 C CNN
4.1049 + 1 2250 3000
4.1050 0 1 1 0
4.1051 $EndComp
4.1052 Wire Wire Line
4.1053 - 2800 2300 2800 3200
4.1054 + 2800 1900 2800 3000
4.1055 Wire Wire Line
4.1056 - 2800 3200 2600 3200
4.1057 + 2800 3000 2350 3000
4.1058 Wire Wire Line
4.1059 - 2400 3200 1700 3200
4.1060 + 2150 3000 1700 3000
4.1061 Wire Wire Line
4.1062 - 1700 3200 1700 3000
4.1063 -Connection ~ 1700 3000
4.1064 + 1700 3000 1700 2600
4.1065 +Connection ~ 1700 2600
4.1066 Wire Wire Line
4.1067 - 1700 3000 1750 3000
4.1068 + 1700 2600 1750 2600
4.1069 Wire Wire Line
4.1070 1000 3400 1600 3400
4.1071 Wire Wire Line
4.1072 - 1600 3000 1600 3400
4.1073 + 1600 2600 1600 3400
4.1074 Wire Wire Line
4.1075 1600 3400 3400 3400
4.1076 Wire Wire Line
4.1077 - 3400 3000 3400 3400
4.1078 + 3400 2600 3400 3400
4.1079 Connection ~ 1600 3400
4.1080 Wire Wire Line
4.1081 3400 3400 5200 3400
4.1082 Wire Wire Line
4.1083 - 5200 3000 5200 3400
4.1084 + 5200 2600 5200 3400
4.1085 Connection ~ 3400 3400
4.1086 Wire Wire Line
4.1087 5200 3400 7000 3400
4.1088 Wire Wire Line
4.1089 - 7000 3000 7000 3400
4.1090 + 7000 2600 7000 3400
4.1091 Connection ~ 5200 3400
4.1092 Wire Wire Line
4.1093 - 8200 2300 8200 1400
4.1094 -Connection ~ 8200 2300
4.1095 + 8200 1900 8200 1000
4.1096 +Connection ~ 8200 1900
4.1097 +Wire Wire Line
4.1098 + 6400 1900 6400 1000
4.1099 +Connection ~ 6400 1900
4.1100 +Connection ~ 6400 1000
4.1101 +Wire Wire Line
4.1102 + 6400 1000 8200 1000
4.1103 Wire Wire Line
4.1104 - 6400 2300 6400 1400
4.1105 -Connection ~ 6400 2300
4.1106 -Connection ~ 6400 1400
4.1107 + 4600 1900 4600 1000
4.1108 +Connection ~ 4600 1900
4.1109 +Connection ~ 4600 1000
4.1110 Wire Wire Line
4.1111 - 6400 1400 8200 1400
4.1112 + 4600 1000 6400 1000
4.1113 +Wire Wire Line
4.1114 + 2800 1900 2800 1000
4.1115 +Connection ~ 2800 1900
4.1116 +Connection ~ 2800 1000
4.1117 Wire Wire Line
4.1118 - 4600 2300 4600 1400
4.1119 -Connection ~ 4600 2300
4.1120 -Connection ~ 4600 1400
4.1121 -Wire Wire Line
4.1122 - 4600 1400 6400 1400
4.1123 + 2800 1000 4600 1000
4.1124 +Entry Wire Line
4.1125 + 2900 2300 3000 2400
4.1126 +Entry Wire Line
4.1127 + 2900 2400 3000 2500
4.1128 +Entry Wire Line
4.1129 + 2900 2500 3000 2600
4.1130 +Entry Wire Line
4.1131 + 2900 2600 3000 2700
4.1132 +Entry Wire Line
4.1133 + 1500 2500 1600 2400
4.1134 +Entry Wire Line
4.1135 + 1500 2600 1600 2500
4.1136 +Entry Wire Line
4.1137 + 3300 2500 3400 2400
4.1138 +Entry Wire Line
4.1139 + 3300 2600 3400 2500
4.1140 +Entry Wire Line
4.1141 + 4700 2300 4800 2400
4.1142 +Entry Wire Line
4.1143 + 4700 2400 4800 2500
4.1144 +Entry Wire Line
4.1145 + 4700 2500 4800 2600
4.1146 +Entry Wire Line
4.1147 + 4700 2600 4800 2700
4.1148 +Entry Wire Line
4.1149 + 6500 2300 6600 2400
4.1150 +Entry Wire Line
4.1151 + 6500 2400 6600 2500
4.1152 +Entry Wire Line
4.1153 + 6500 2500 6600 2600
4.1154 +Entry Wire Line
4.1155 + 6500 2600 6600 2700
4.1156 +Entry Wire Line
4.1157 + 5100 2500 5200 2400
4.1158 +Entry Wire Line
4.1159 + 5100 2600 5200 2500
4.1160 +Entry Wire Line
4.1161 + 6900 2500 7000 2400
4.1162 +Entry Wire Line
4.1163 + 6900 2600 7000 2500
4.1164 +Entry Wire Line
4.1165 + 8300 2300 8400 2400
4.1166 +Entry Wire Line
4.1167 + 8300 2400 8400 2500
4.1168 +Entry Wire Line
4.1169 + 8300 2500 8400 2600
4.1170 +Entry Wire Line
4.1171 + 8300 2600 8400 2700
4.1172 +$Comp
4.1173 +L Device:C_Small A7
4.1174 +U 1 1 647212B6
4.1175 +P 1000 6800
4.1176 +F 0 "A7" V 1150 6800 50 0000 C CNN
4.1177 +F 1 "47n/33n decoupler" V 850 6800 50 0000 C CNN
4.1178 +F 2 "" H 1000 6800 50 0001 C CNN
4.1179 +F 3 "~" H 1000 6800 50 0001 C CNN
4.1180 + 1 1000 6800
4.1181 + 0 -1 -1 0
4.1182 +$EndComp
4.1183 Wire Wire Line
4.1184 - 2800 2300 2800 1400
4.1185 -Connection ~ 2800 2300
4.1186 -Connection ~ 2800 1400
4.1187 + 1550 6800 1100 6800
4.1188 +Connection ~ 1550 6800
4.1189 +Wire Wire Line
4.1190 + 1550 6800 1550 6600
4.1191 Wire Wire Line
4.1192 - 2800 1400 4600 1400
4.1193 + 900 6800 700 6800
4.1194 +Wire Wire Line
4.1195 + 700 6800 700 4000
4.1196 +Wire Wire Line
4.1197 + 700 4000 1550 4000
4.1198 Wire Bus Line
4.1199 - 1500 2800 1500 3500
4.1200 + 1500 2400 1500 3500
4.1201 Wire Bus Line
4.1202 - 3300 2800 3300 3500
4.1203 + 3300 2400 3300 3500
4.1204 +Wire Bus Line
4.1205 + 5100 2400 5100 3500
4.1206 Wire Bus Line
4.1207 - 5100 2800 5100 3500
4.1208 + 6900 2400 6900 3500
4.1209 Wire Bus Line
4.1210 - 6900 2800 6900 3500
4.1211 + 3000 2300 3000 3500
4.1212 Wire Bus Line
4.1213 - 6600 2700 6600 3500
4.1214 + 4800 2300 4800 3500
4.1215 Wire Bus Line
4.1216 - 8400 2700 8400 3500
4.1217 + 6600 2300 6600 3500
4.1218 Wire Bus Line
4.1219 - 4800 2700 4800 3500
4.1220 + 8400 2300 8400 3500
4.1221 Wire Bus Line
4.1222 - 3000 2700 3000 3500
4.1223 + 2400 5100 2400 5800
4.1224 Wire Bus Line
4.1225 - 2100 5000 2100 5700
4.1226 + 2400 4200 2400 4900
4.1227 Wire Bus Line
4.1228 - 2100 4100 2100 4800
4.1229 -Wire Bus Line
4.1230 - 1300 1600 8900 1600
4.1231 + 1300 1200 8900 1200
4.1232 +Connection ~ 1550 4000
4.1233 +Wire Wire Line
4.1234 + 1550 4000 1550 4100
4.1235 $EndSCHEMATC
5.1 --- a/UHF.sch Mon Jan 23 00:37:25 2023 +0100
5.2 +++ b/UHF.sch Tue Jan 24 21:56:51 2023 +0100
5.3 @@ -4,7 +4,7 @@
5.4 EELAYER END
5.5 $Descr A4 11693 8268
5.6 encoding utf-8
5.7 -Sheet 9 9
5.8 +Sheet 9 10
5.9 Title ""
5.10 Date ""
5.11 Rev ""
5.12 @@ -52,19 +52,6 @@
5.13 $EndComp
5.14 $Comp
5.15 L 74xx:74LS74 IC12
5.16 -U 3 1 61DD1F0E
5.17 -P 1200 6700
5.18 -AR Path="/61DB955D/61DF7FF4/61DD1F0E" Ref="IC12" Part="3"
5.19 -AR Path="/62411C42/61DD1F0E" Ref="IC11" Part="3"
5.20 -F 0 "IC11" H 1430 6746 50 0000 L CNN
5.21 -F 1 "74LS74" H 1430 6655 50 0000 L CNN
5.22 -F 2 "" H 1200 6700 50 0001 C CNN
5.23 -F 3 "74xx/74hc_hct74.pdf" H 1200 6700 50 0001 C CNN
5.24 - 3 1200 6700
5.25 - 1 0 0 -1
5.26 -$EndComp
5.27 -$Comp
5.28 -L 74xx:74LS74 IC12
5.29 U 1 1 61DD898C
5.30 P 3100 6500
5.31 AR Path="/61DB955D/61DF7FF4/61DD898C" Ref="IC12" Part="1"
5.32 @@ -89,19 +76,6 @@
5.33 2 4500 6200
5.34 1 0 0 -1
5.35 $EndComp
5.36 -$Comp
5.37 -L 74xx:74LS74 IC11
5.38 -U 3 1 61DD8ABE
5.39 -P 800 5800
5.40 -AR Path="/61DB955D/61DF7FF4/61DD8ABE" Ref="IC11" Part="3"
5.41 -AR Path="/62411C42/61DD8ABE" Ref="IC12" Part="3"
5.42 -F 0 "IC12" H 1030 5846 50 0000 L CNN
5.43 -F 1 "74LS74" H 1030 5755 50 0000 L CNN
5.44 -F 2 "" H 800 5800 50 0001 C CNN
5.45 -F 3 "74xx/74hc_hct74.pdf" H 800 5800 50 0001 C CNN
5.46 - 3 800 5800
5.47 - 1 0 0 -1
5.48 -$EndComp
5.49 Wire Wire Line
5.50 1700 5000 1900 5000
5.51 Wire Wire Line
5.52 @@ -209,22 +183,6 @@
5.53 3400 6400 3600 6400
5.54 Wire Wire Line
5.55 3850 5300 4000 5300
5.56 -Text GLabel 1200 6200 1 50 Input ~ 0
5.57 -5V
5.58 -Text GLabel 800 5300 1 50 Input ~ 0
5.59 -5V
5.60 -Text GLabel 1200 7200 3 50 Input ~ 0
5.61 -0V
5.62 -Text GLabel 800 6300 3 50 Input ~ 0
5.63 -0V
5.64 -Wire Wire Line
5.65 - 800 6300 800 6200
5.66 -Wire Wire Line
5.67 - 800 5400 800 5300
5.68 -Wire Wire Line
5.69 - 1200 7200 1200 7100
5.70 -Wire Wire Line
5.71 - 1200 6300 1200 6200
5.72 $Comp
5.73 L 74xx:74LS86 IC14
5.74 U 2 1 61E8C5C6
5.75 @@ -347,48 +305,6 @@
5.76 Wire Wire Line
5.77 4800 4300 5100 4300
5.78 $Comp
5.79 -L 74xx:74LS86 IC15
5.80 -U 5 1 6205A86B
5.81 -P 800 4350
5.82 -AR Path="/61DB955D/61DF7FF4/6205A86B" Ref="IC15" Part="5"
5.83 -AR Path="/62411C42/6205A86B" Ref="IC14" Part="5"
5.84 -F 0 "IC14" H 1030 4396 50 0000 L CNN
5.85 -F 1 "74LS86" H 1030 4305 50 0000 L CNN
5.86 -F 2 "" H 800 4350 50 0001 C CNN
5.87 -F 3 "74xx/74ls86.pdf" H 800 4350 50 0001 C CNN
5.88 - 5 800 4350
5.89 - 1 0 0 -1
5.90 -$EndComp
5.91 -$Comp
5.92 -L 74xx:74LS86 IC14
5.93 -U 5 1 6205ABE4
5.94 -P 1200 3300
5.95 -AR Path="/61DB955D/61DF7FF4/6205ABE4" Ref="IC14" Part="5"
5.96 -AR Path="/62411C42/6205ABE4" Ref="IC15" Part="5"
5.97 -F 0 "IC15" H 1430 3346 50 0000 L CNN
5.98 -F 1 "74LS86" H 1430 3255 50 0000 L CNN
5.99 -F 2 "" H 1200 3300 50 0001 C CNN
5.100 -F 3 "74xx/74ls86.pdf" H 1200 3300 50 0001 C CNN
5.101 - 5 1200 3300
5.102 - 1 0 0 -1
5.103 -$EndComp
5.104 -Text GLabel 1200 2700 1 50 Input ~ 0
5.105 -5V
5.106 -Text GLabel 800 3750 1 50 Input ~ 0
5.107 -5V
5.108 -Text GLabel 800 4950 3 50 Input ~ 0
5.109 -0V
5.110 -Text GLabel 1200 3900 3 50 Input ~ 0
5.111 -0V
5.112 -Wire Wire Line
5.113 - 1200 2700 1200 2800
5.114 -Wire Wire Line
5.115 - 1200 3800 1200 3900
5.116 -Wire Wire Line
5.117 - 800 3750 800 3850
5.118 -Wire Wire Line
5.119 - 800 4850 800 4950
5.120 -$Comp
5.121 L 74xx:74LS00 IC16
5.122 U 1 1 620777FB
5.123 P 7100 3500
5.124 @@ -724,48 +640,6 @@
5.125 Wire Wire Line
5.126 6400 3600 6800 3600
5.127 $Comp
5.128 -L 74xx:74LS00 IC16
5.129 -U 5 1 61E3EA72
5.130 -P 1200 1300
5.131 -AR Path="/61DB955D/61DF7FF4/61E3EA72" Ref="IC16" Part="5"
5.132 -AR Path="/62411C42/61E3EA72" Ref="IC16" Part="5"
5.133 -F 0 "IC16" H 1430 1346 50 0000 L CNN
5.134 -F 1 "74LS00" H 1430 1255 50 0000 L CNN
5.135 -F 2 "" H 1200 1300 50 0001 C CNN
5.136 -F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 1200 1300 50 0001 C CNN
5.137 - 5 1200 1300
5.138 - 1 0 0 -1
5.139 -$EndComp
5.140 -Text GLabel 1200 1900 3 50 Input ~ 0
5.141 -0V
5.142 -Text GLabel 1200 700 1 50 Input ~ 0
5.143 -5V
5.144 -Wire Wire Line
5.145 - 1200 800 1200 700
5.146 -Wire Wire Line
5.147 - 1200 1900 1200 1800
5.148 -$Comp
5.149 -L 74xx:74LS00 IC10
5.150 -U 5 1 61E9B602
5.151 -P 800 2300
5.152 -AR Path="/61DB955D/61DF7FF4/61E9B602" Ref="IC10" Part="5"
5.153 -AR Path="/62411C42/61E9B602" Ref="IC10" Part="5"
5.154 -F 0 "IC10" H 1030 2346 50 0000 L CNN
5.155 -F 1 "74LS00" H 1030 2255 50 0000 L CNN
5.156 -F 2 "" H 800 2300 50 0001 C CNN
5.157 -F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 800 2300 50 0001 C CNN
5.158 - 5 800 2300
5.159 - 1 0 0 -1
5.160 -$EndComp
5.161 -Text GLabel 800 2900 3 50 Input ~ 0
5.162 -0V
5.163 -Text GLabel 800 1700 1 50 Input ~ 0
5.164 -5V
5.165 -Wire Wire Line
5.166 - 800 1800 800 1700
5.167 -Wire Wire Line
5.168 - 800 2900 800 2800
5.169 -$Comp
5.170 L 74xx:74LS00 IC10
5.171 U 1 1 61EB617E
5.172 P 6300 6800
6.1 --- a/cassette.sch Mon Jan 23 00:37:25 2023 +0100
6.2 +++ b/cassette.sch Tue Jan 24 21:56:51 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 9
6.8 +Sheet 4 10
6.9 Title ""
6.10 Date ""
6.11 Rev ""
6.12 @@ -602,25 +602,6 @@
6.13 10200 1900 10000 1900
6.14 $Comp
6.15 L Amplifier_Operational:LM324 IC13
6.16 -U 5 1 626384A4
6.17 -P 3700 6700
6.18 -F 0 "IC13" H 3658 6746 50 0000 L CNN
6.19 -F 1 "LM324" H 3658 6655 50 0000 L CNN
6.20 -F 2 "" H 3650 6800 50 0001 C CNN
6.21 -F 3 "http://www.ti.com/lit/ds/symlink/lm2902-n.pdf" H 3750 6900 50 0001 C CNN
6.22 - 5 3700 6700
6.23 - 1 0 0 -1
6.24 -$EndComp
6.25 -Text GLabel 3600 7100 3 50 Input ~ 0
6.26 --5V
6.27 -Text GLabel 3600 6300 1 50 Input ~ 0
6.28 -5V
6.29 -Wire Wire Line
6.30 - 3600 6400 3600 6300
6.31 -Wire Wire Line
6.32 - 3600 7100 3600 7000
6.33 -$Comp
6.34 -L Amplifier_Operational:LM324 IC13
6.35 U 1 1 6263C24D
6.36 P 7800 1800
6.37 F 0 "IC13" H 7800 2167 50 0000 C CNN
7.1 --- a/clocks.sch Mon Jan 23 00:37:25 2023 +0100
7.2 +++ b/clocks.sch Tue Jan 24 21:56:51 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 9
7.8 +Sheet 2 10
7.9 Title ""
7.10 Date ""
7.11 Rev ""
7.12 @@ -307,108 +307,108 @@
7.13 $Comp
7.14 L 74xx:74LS163 IC?
7.15 U 1 1 61F9FB39
7.16 -P 6500 2700
7.17 +P 7900 2700
7.18 AR Path="/61F9FB39" Ref="IC?" Part="1"
7.19 AR Path="/61DF4BC2/61F9FB39" Ref="IC9" Part="1"
7.20 -F 0 "IC9" H 6200 3600 50 0000 C CNN
7.21 -F 1 "74LS163" H 6200 3500 50 0000 C CNN
7.22 -F 2 "" H 6500 2700 50 0001 C CNN
7.23 -F 3 "http://www.ti.com/lit/gpn/sn74LS169" H 6500 2700 50 0001 C CNN
7.24 - 1 6500 2700
7.25 +F 0 "IC9" H 7600 3600 50 0000 C CNN
7.26 +F 1 "74LS163" H 7600 3500 50 0000 C CNN
7.27 +F 2 "" H 7900 2700 50 0001 C CNN
7.28 +F 3 "http://www.ti.com/lit/gpn/sn74LS169" H 7900 2700 50 0001 C CNN
7.29 + 1 7900 2700
7.30 1 0 0 -1
7.31 $EndComp
7.32 Wire Wire Line
7.33 - 5900 2500 5900 2400
7.34 + 7300 2500 7300 2400
7.35 Wire Wire Line
7.36 - 5900 2400 6000 2400
7.37 + 7300 2400 7400 2400
7.38 Wire Wire Line
7.39 - 5900 2500 6000 2500
7.40 + 7300 2500 7400 2500
7.41 Wire Wire Line
7.42 - 7000 2500 7200 2500
7.43 -Text GLabel 6500 3650 3 50 Input ~ 0
7.44 + 8400 2500 8600 2500
7.45 +Text GLabel 7900 3650 3 50 Input ~ 0
7.46 0V
7.47 Wire Wire Line
7.48 - 6500 3650 6500 3500
7.49 -Text GLabel 6500 1800 1 50 Input ~ 0
7.50 + 7900 3650 7900 3500
7.51 +Text GLabel 7900 1600 1 50 Input ~ 0
7.52 5V
7.53 Wire Wire Line
7.54 - 6500 1900 6500 1800
7.55 + 7900 1900 7900 1700
7.56 Wire Wire Line
7.57 - 4100 3000 6000 3000
7.58 -Text GLabel 5800 3200 0 50 Input ~ 0
7.59 + 4100 3000 7400 3000
7.60 +Text GLabel 7200 3200 0 50 Input ~ 0
7.61 0V
7.62 -NoConn ~ 7000 2300
7.63 -NoConn ~ 7000 2200
7.64 -NoConn ~ 7000 2700
7.65 +NoConn ~ 8400 2300
7.66 +NoConn ~ 8400 2200
7.67 +NoConn ~ 8400 2700
7.68 Wire Wire Line
7.69 - 5800 3200 5900 3200
7.70 + 7200 3200 7300 3200
7.71 Wire Wire Line
7.72 - 5900 2400 5900 2300
7.73 + 7300 2400 7300 2300
7.74 Wire Wire Line
7.75 - 5900 2300 6000 2300
7.76 -Connection ~ 5900 2400
7.77 + 7300 2300 7400 2300
7.78 +Connection ~ 7300 2400
7.79 Wire Wire Line
7.80 - 5900 2300 5900 2200
7.81 + 7300 2300 7300 2200
7.82 Wire Wire Line
7.83 - 5900 2200 6000 2200
7.84 -Connection ~ 5900 2300
7.85 + 7300 2200 7400 2200
7.86 +Connection ~ 7300 2300
7.87 $Comp
7.88 L 74xx:74LS00 U?
7.89 U 1 1 61F9FB55
7.90 -P 7600 2500
7.91 +P 9000 2500
7.92 AR Path="/61F9FB55" Ref="U?" Part="1"
7.93 AR Path="/61DF4BC2/61F9FB55" Ref="IC17" Part="1"
7.94 -F 0 "IC17" H 7600 2825 50 0000 C CNN
7.95 -F 1 "74LS00" H 7600 2734 50 0000 C CNN
7.96 -F 2 "" H 7600 2500 50 0001 C CNN
7.97 -F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 7600 2500 50 0001 C CNN
7.98 - 1 7600 2500
7.99 +F 0 "IC17" H 9000 2825 50 0000 C CNN
7.100 +F 1 "74LS00" H 9000 2734 50 0000 C CNN
7.101 +F 2 "" H 9000 2500 50 0001 C CNN
7.102 +F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 9000 2500 50 0001 C CNN
7.103 + 1 9000 2500
7.104 1 0 0 -1
7.105 $EndComp
7.106 Wire Wire Line
7.107 - 7000 2400 7300 2400
7.108 + 8400 2400 8700 2400
7.109 Wire Wire Line
7.110 - 7200 2500 7200 2600
7.111 + 8600 2500 8600 2600
7.112 Wire Wire Line
7.113 - 7200 2600 7300 2600
7.114 + 8600 2600 8700 2600
7.115 Wire Wire Line
7.116 - 7900 2500 7900 1600
7.117 + 9300 2500 9300 1400
7.118 Wire Wire Line
7.119 - 7900 1600 5600 1600
7.120 + 9300 1400 7000 1400
7.121 Wire Wire Line
7.122 - 5600 1600 5600 2700
7.123 + 7000 1400 7000 2700
7.124 Wire Wire Line
7.125 - 5600 2700 6000 2700
7.126 + 7000 2700 7400 2700
7.127 Wire Wire Line
7.128 - 5900 2500 5900 2800
7.129 -Connection ~ 5900 2500
7.130 -Connection ~ 5900 3200
7.131 + 7300 2500 7300 2800
7.132 +Connection ~ 7300 2500
7.133 +Connection ~ 7300 3200
7.134 Wire Wire Line
7.135 - 5900 3200 6000 3200
7.136 + 7300 3200 7400 3200
7.137 Wire Wire Line
7.138 - 6000 2800 5900 2800
7.139 -Connection ~ 5900 2800
7.140 + 7400 2800 7300 2800
7.141 +Connection ~ 7300 2800
7.142 Wire Wire Line
7.143 - 5900 2800 5900 2900
7.144 + 7300 2800 7300 2900
7.145 Wire Wire Line
7.146 - 6000 2900 5900 2900
7.147 -Connection ~ 5900 2900
7.148 + 7400 2900 7300 2900
7.149 +Connection ~ 7300 2900
7.150 Wire Wire Line
7.151 - 5900 2900 5900 3200
7.152 -Text Notes 6900 3300 0 50 ~ 0
7.153 + 7300 2900 7300 3200
7.154 +Text Notes 8300 3300 0 50 ~ 0
7.155 Service Manual and issue 4\nuse 74LS169 for IC9.
7.156 Wire Wire Line
7.157 4100 3000 4100 1800
7.158 Connection ~ 4100 1800
7.159 Wire Wire Line
7.160 4100 1800 4100 1200
7.161 -Text GLabel 8100 2800 2 50 Output ~ 0
7.162 +Text GLabel 9500 2800 2 50 Output ~ 0
7.163 CLOCK_16MHz_DIV_13
7.164 Wire Wire Line
7.165 - 8100 2800 7200 2800
7.166 + 9500 2800 8600 2800
7.167 Wire Wire Line
7.168 - 7200 2800 7200 2600
7.169 -Connection ~ 7200 2600
7.170 + 8600 2800 8600 2600
7.171 +Connection ~ 8600 2600
7.172 Text Notes 4200 2950 0 50 ~ 0
7.173 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.\n\nAccording to "Acorn Information\n- Volume 1", LK10 would be\nmade for boards using the\nFerranti ULA.
7.174 $Comp
7.175 @@ -450,26 +450,7 @@
7.176 Connection ~ 5500 1100
7.177 Wire Wire Line
7.178 5500 1100 5400 1100
7.179 -$Comp
7.180 -L 74xx:74LS00 IC17
7.181 -U 5 1 61F8B195
7.182 -P 9700 2700
7.183 -F 0 "IC17" H 9930 2746 50 0000 L CNN
7.184 -F 1 "74LS00" H 9930 2655 50 0000 L CNN
7.185 -F 2 "" H 9700 2700 50 0001 C CNN
7.186 -F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 9700 2700 50 0001 C CNN
7.187 - 5 9700 2700
7.188 - 1 0 0 -1
7.189 -$EndComp
7.190 -Text GLabel 9700 2100 1 50 Input ~ 0
7.191 -5V
7.192 -Text GLabel 9700 3300 3 50 Input ~ 0
7.193 -0V
7.194 -Wire Wire Line
7.195 - 9700 2200 9700 2100
7.196 -Wire Wire Line
7.197 - 9700 3300 9700 3200
7.198 -Text Notes 8000 2300 0 50 ~ 0
7.199 +Text Notes 9400 2300 0 50 ~ 0
7.200 IC17 label deduced from schematic.
7.201 $Comp
7.202 L Device:C_Variable VC1
7.203 @@ -486,4 +467,29 @@
7.204 2550 2600 2350 2600
7.205 Text Notes 1600 2650 2 50 ~ 0
7.206 PAL video clock circuit.
7.207 +$Comp
7.208 +L Device:C_Small A?
7.209 +U 1 1 646F71A5
7.210 +P 7100 3500
7.211 +AR Path="/61D7EEE8/646F71A5" Ref="A?" Part="1"
7.212 +AR Path="/61DF4BC2/646F71A5" Ref="A6" Part="1"
7.213 +F 0 "A6" V 7250 3500 50 0000 C CNN
7.214 +F 1 "47n/33n decoupler" V 6950 3500 50 0000 C CNN
7.215 +F 2 "" H 7100 3500 50 0001 C CNN
7.216 +F 3 "~" H 7100 3500 50 0001 C CNN
7.217 + 1 7100 3500
7.218 + 0 1 1 0
7.219 +$EndComp
7.220 +Wire Wire Line
7.221 + 7900 3500 7200 3500
7.222 +Wire Wire Line
7.223 + 7000 3500 6600 3500
7.224 +Connection ~ 7900 3500
7.225 +Wire Wire Line
7.226 + 6600 3500 6600 1700
7.227 +Wire Wire Line
7.228 + 6600 1700 7900 1700
7.229 +Connection ~ 7900 1700
7.230 +Wire Wire Line
7.231 + 7900 1700 7900 1600
7.232 $EndSCHEMATC
8.1 --- a/expansion.sch Mon Jan 23 00:37:25 2023 +0100
8.2 +++ b/expansion.sch Tue Jan 24 21:56:51 2023 +0100
8.3 @@ -4,7 +4,7 @@
8.4 EELAYER END
8.5 $Descr A4 11693 8268
8.6 encoding utf-8
8.7 -Sheet 6 9
8.8 +Sheet 6 10
8.9 Title ""
8.10 Date ""
8.11 Rev ""
9.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
9.2 +++ b/power.sch Tue Jan 24 21:56:51 2023 +0100
9.3 @@ -0,0 +1,798 @@
9.4 +EESchema Schematic File Version 4
9.5 +LIBS:AcornElectronMainboard-cache
9.6 +EELAYER 26 0
9.7 +EELAYER END
9.8 +$Descr A4 11693 8268
9.9 +encoding utf-8
9.10 +Sheet 10 10
9.11 +Title ""
9.12 +Date ""
9.13 +Rev ""
9.14 +Comp ""
9.15 +Comment1 ""
9.16 +Comment2 ""
9.17 +Comment3 ""
9.18 +Comment4 ""
9.19 +$EndDescr
9.20 +$Comp
9.21 +L Connector_Generic:Conn_01x03 PL?
9.22 +U 1 1 6461644D
9.23 +P 850 1300
9.24 +AR Path="/6461644D" Ref="PL?" Part="1"
9.25 +AR Path="/6460C88B/6461644D" Ref="PL3" Part="1"
9.26 +F 0 "PL3" H 770 1617 50 0000 C CNN
9.27 +F 1 "Power" H 770 1526 50 0000 C CNN
9.28 +F 2 "" H 850 1300 50 0001 C CNN
9.29 +F 3 "~" H 850 1300 50 0001 C CNN
9.30 + 1 850 1300
9.31 + -1 0 0 -1
9.32 +$EndComp
9.33 +Text GLabel 3150 1200 2 50 Output ~ 0
9.34 +5V
9.35 +Wire Wire Line
9.36 + 1050 1200 1550 1200
9.37 +Text GLabel 3150 1700 2 50 Output ~ 0
9.38 +0V
9.39 +Text GLabel 3150 2200 2 50 Output ~ 0
9.40 +-5V
9.41 +Wire Wire Line
9.42 + 1350 1700 1450 1700
9.43 +Wire Wire Line
9.44 + 1250 2200 1450 2200
9.45 +$Comp
9.46 +L Device:C Ax?
9.47 +U 1 1 6461645A
9.48 +P 2150 1450
9.49 +AR Path="/6461645A" Ref="Ax?" Part="1"
9.50 +AR Path="/6460C88B/6461645A" Ref="Ax19" Part="1"
9.51 +F 0 "Ax19" H 2265 1496 50 0000 L CNN
9.52 +F 1 "47nF" H 2265 1405 50 0000 L CNN
9.53 +F 2 "" H 2188 1300 50 0001 C CNN
9.54 +F 3 "~" H 2150 1450 50 0001 C CNN
9.55 + 1 2150 1450
9.56 + 1 0 0 -1
9.57 +$EndComp
9.58 +$Comp
9.59 +L Device:C Ax?
9.60 +U 1 1 64616461
9.61 +P 2050 1950
9.62 +AR Path="/64616461" Ref="Ax?" Part="1"
9.63 +AR Path="/6460C88B/64616461" Ref="Ax1" Part="1"
9.64 +F 0 "Ax1" H 2165 1996 50 0000 L CNN
9.65 +F 1 "47nF" H 2165 1905 50 0000 L CNN
9.66 +F 2 "" H 2088 1800 50 0001 C CNN
9.67 +F 3 "~" H 2050 1950 50 0001 C CNN
9.68 + 1 2050 1950
9.69 + 1 0 0 -1
9.70 +$EndComp
9.71 +$Comp
9.72 +L Device:CP C?
9.73 +U 1 1 64616468
9.74 +P 1550 1450
9.75 +AR Path="/64616468" Ref="C?" Part="1"
9.76 +AR Path="/6460C88B/64616468" Ref="C1" Part="1"
9.77 +F 0 "C1" H 1668 1496 50 0000 L CNN
9.78 +F 1 "47µF/16V" H 1668 1405 38 0000 L CNN
9.79 +F 2 "" H 1588 1300 50 0001 C CNN
9.80 +F 3 "~" H 1550 1450 50 0001 C CNN
9.81 + 1 1550 1450
9.82 + 1 0 0 -1
9.83 +$EndComp
9.84 +$Comp
9.85 +L Device:CP C?
9.86 +U 1 1 6461646F
9.87 +P 1450 1950
9.88 +AR Path="/6461646F" Ref="C?" Part="1"
9.89 +AR Path="/6460C88B/6461646F" Ref="C2" Part="1"
9.90 +F 0 "C2" H 1568 1996 50 0000 L CNN
9.91 +F 1 "10µF/16V" H 1568 1905 38 0000 L CNN
9.92 +F 2 "" H 1488 1800 50 0001 C CNN
9.93 +F 3 "~" H 1450 1950 50 0001 C CNN
9.94 + 1 1450 1950
9.95 + 1 0 0 -1
9.96 +$EndComp
9.97 +Wire Wire Line
9.98 + 1350 1700 1350 1300
9.99 +Wire Wire Line
9.100 + 1350 1300 1050 1300
9.101 +Wire Wire Line
9.102 + 1250 2200 1250 1400
9.103 +Wire Wire Line
9.104 + 1550 1300 1550 1200
9.105 +Connection ~ 1550 1200
9.106 +Wire Wire Line
9.107 + 1550 1200 2150 1200
9.108 +Wire Wire Line
9.109 + 1450 1800 1450 1700
9.110 +Connection ~ 1450 1700
9.111 +Wire Wire Line
9.112 + 1450 1700 1550 1700
9.113 +Wire Wire Line
9.114 + 1550 1600 1550 1700
9.115 +Connection ~ 1550 1700
9.116 +Wire Wire Line
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9.660 +Wire Wire Line
9.661 + 7000 5100 6900 5100
9.662 +$Comp
9.663 +L Device:C_Small A?
9.664 +U 1 1 646CAC33
9.665 +P 6400 5600
9.666 +AR Path="/61D7EEE8/646CAC33" Ref="A?" Part="1"
9.667 +AR Path="/646CAC33" Ref="A?" Part="1"
9.668 +AR Path="/6460C88B/646CAC33" Ref="A17" Part="1"
9.669 +F 0 "A17" V 6550 5600 50 0000 C CNN
9.670 +F 1 "47n/33n decoupler" V 6250 5600 50 0000 C CNN
9.671 +F 2 "" H 6400 5600 50 0001 C CNN
9.672 +F 3 "~" H 6400 5600 50 0001 C CNN
9.673 + 1 6400 5600
9.674 + 0 1 1 0
9.675 +$EndComp
9.676 +Wire Wire Line
9.677 + 5900 5100 5900 5600
9.678 +Wire Wire Line
9.679 + 5900 5600 6300 5600
9.680 +Connection ~ 5900 5100
9.681 +Wire Wire Line
9.682 + 6500 5600 6900 5600
9.683 +Wire Wire Line
9.684 + 6900 5600 6900 5100
9.685 +Connection ~ 6900 5100
9.686 +$Comp
9.687 +L 74xx:74LS00 IC?
9.688 +U 5 1 646D1448
9.689 +P 6400 3800
9.690 +AR Path="/61DF4BC2/646D1448" Ref="IC?" Part="5"
9.691 +AR Path="/6460C88B/646D1448" Ref="IC17" Part="5"
9.692 +F 0 "IC17" V 6800 3800 50 0000 C CNN
9.693 +F 1 "74LS00" V 6700 3800 50 0000 C CNN
9.694 +F 2 "" H 6400 3800 50 0001 C CNN
9.695 +F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 6400 3800 50 0001 C CNN
9.696 + 5 6400 3800
9.697 + 0 -1 -1 0
9.698 +$EndComp
9.699 +Text GLabel 5800 3800 0 50 Input ~ 0
9.700 +5V
9.701 +Text GLabel 7000 3800 2 50 Input ~ 0
9.702 +0V
9.703 +Wire Wire Line
9.704 + 5900 3800 5800 3800
9.705 +Wire Wire Line
9.706 + 7000 3800 6900 3800
9.707 +$Comp
9.708 +L Device:C_Small A?
9.709 +U 1 1 646D706B
9.710 +P 6400 4300
9.711 +AR Path="/61D7EEE8/646D706B" Ref="A?" Part="1"
9.712 +AR Path="/646D706B" Ref="A?" Part="1"
9.713 +AR Path="/6460C88B/646D706B" Ref="A16" Part="1"
9.714 +F 0 "A16" V 6550 4300 50 0000 C CNN
9.715 +F 1 "47n/33n decoupler" V 6250 4300 50 0000 C CNN
9.716 +F 2 "" H 6400 4300 50 0001 C CNN
9.717 +F 3 "~" H 6400 4300 50 0001 C CNN
9.718 + 1 6400 4300
9.719 + 0 1 1 0
9.720 +$EndComp
9.721 +Wire Wire Line
9.722 + 5900 3800 5900 4300
9.723 +Wire Wire Line
9.724 + 5900 4300 6300 4300
9.725 +Connection ~ 5900 3800
9.726 +Wire Wire Line
9.727 + 6500 4300 6900 4300
9.728 +Wire Wire Line
9.729 + 6900 4300 6900 3800
9.730 +Connection ~ 6900 3800
9.731 +$Comp
9.732 +L Amplifier_Operational:LM324 IC?
9.733 +U 5 1 646E146E
9.734 +P 4500 5000
9.735 +AR Path="/624B50A6/646E146E" Ref="IC?" Part="5"
9.736 +AR Path="/6460C88B/646E146E" Ref="IC13" Part="5"
9.737 +F 0 "IC13" V 4800 5000 50 0000 C CNN
9.738 +F 1 "LM324" V 4700 5000 50 0000 C CNN
9.739 +F 2 "" H 4450 5100 50 0001 C CNN
9.740 +F 3 "http://www.ti.com/lit/ds/symlink/lm2902-n.pdf" H 4550 5200 50 0001 C CNN
9.741 + 5 4500 5000
9.742 + 0 -1 -1 0
9.743 +$EndComp
9.744 +Text GLabel 5100 5100 2 50 Input ~ 0
9.745 +-5V
9.746 +Text GLabel 3900 5100 0 50 Input ~ 0
9.747 +5V
9.748 +Wire Wire Line
9.749 + 4200 5100 3900 5100
9.750 +Wire Wire Line
9.751 + 5100 5100 4800 5100
9.752 +$Comp
9.753 +L 74xx:74LS04 IC8
9.754 +U 7 1 647088BB
9.755 +P 2600 5100
9.756 +F 0 "IC8" V 2967 5100 50 0000 C CNN
9.757 +F 1 "74LS04" V 2876 5100 50 0000 C CNN
9.758 +F 2 "" H 2600 5100 50 0001 C CNN
9.759 +F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2600 5100 50 0001 C CNN
9.760 + 7 2600 5100
9.761 + 0 -1 -1 0
9.762 +$EndComp
9.763 +Text GLabel 3200 5100 2 50 Input ~ 0
9.764 +0V
9.765 +Text GLabel 2000 5100 0 50 Input ~ 0
9.766 +5V
9.767 +$Comp
9.768 +L Device:C_Small A?
9.769 +U 1 1 6470DED4
9.770 +P 2600 5600
9.771 +AR Path="/61D7EEE8/6470DED4" Ref="A?" Part="1"
9.772 +AR Path="/6470DED4" Ref="A?" Part="1"
9.773 +AR Path="/6460C88B/6470DED4" Ref="A9" Part="1"
9.774 +F 0 "A9" V 2750 5600 50 0000 C CNN
9.775 +F 1 "47n/33n decoupler" V 2450 5600 50 0000 C CNN
9.776 +F 2 "" H 2600 5600 50 0001 C CNN
9.777 +F 3 "~" H 2600 5600 50 0001 C CNN
9.778 + 1 2600 5600
9.779 + 0 1 1 0
9.780 +$EndComp
9.781 +Wire Wire Line
9.782 + 2000 5100 2100 5100
9.783 +Wire Wire Line
9.784 + 2100 5100 2100 5600
9.785 +Wire Wire Line
9.786 + 2100 5600 2500 5600
9.787 +Connection ~ 2100 5100
9.788 +Wire Wire Line
9.789 + 2700 5600 3100 5600
9.790 +Wire Wire Line
9.791 + 3100 5600 3100 5100
9.792 +Wire Wire Line
9.793 + 3100 5100 3200 5100
9.794 +Connection ~ 3100 5100
9.795 +Text Notes 2300 6850 0 50 ~ 0
9.796 +See clocks for IC9.
9.797 +Text Notes 2300 4300 0 50 ~ 0
9.798 +See ULA for IC1.\nSee ROM for IC2.\nSee CPU for IC3.\nSee RAM for IC4, IC5, IC6, IC7.
9.799 +Text Notes 8000 3000 0 50 ~ 0
9.800 +See RAM for IC20.
9.801 +$EndSCHEMATC
10.1 --- a/sound.sch Mon Jan 23 00:37:25 2023 +0100
10.2 +++ b/sound.sch Tue Jan 24 21:56:51 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 9
10.8 +Sheet 5 10
10.9 Title ""
10.10 Date ""
10.11 Rev ""
11.1 --- a/video.sch Mon Jan 23 00:37:25 2023 +0100
11.2 +++ b/video.sch Tue Jan 24 21:56:51 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 9
11.8 +Sheet 8 10
11.9 Title ""
11.10 Date ""
11.11 Rev ""