1.1 --- a/UHF.sch Sat Feb 12 19:35:41 2022 +0100
1.2 +++ b/UHF.sch Thu Feb 24 18:52:07 2022 +0100
1.3 @@ -20,7 +20,7 @@
1.4 GREEN
1.5 Text GLabel 2200 2900 0 50 Input ~ 0
1.6 RED
1.7 -Text GLabel 2700 6100 0 50 Input ~ 0
1.8 +Text GLabel 2400 6500 0 50 Input ~ 0
1.9 ~HS
1.10 Text GLabel 1700 5000 0 50 Input ~ 0
1.11 CLOCK_VIDEO
1.12 @@ -66,14 +66,14 @@
1.13 $Comp
1.14 L 74xx:74LS74 IC12
1.15 U 1 1 61DD898C
1.16 -P 3400 6100
1.17 +P 3100 6500
1.18 AR Path="/61DB955D/61DF7FF4/61DD898C" Ref="IC12" Part="1"
1.19 AR Path="/62411C42/61DD898C" Ref="IC12" Part="1"
1.20 -F 0 "IC12" H 3600 6500 50 0000 C CNN
1.21 -F 1 "74LS74" H 3600 6400 50 0000 C CNN
1.22 -F 2 "" H 3400 6100 50 0001 C CNN
1.23 -F 3 "74xx/74hc_hct74.pdf" H 3400 6100 50 0001 C CNN
1.24 - 1 3400 6100
1.25 +F 0 "IC12" H 3300 6900 50 0000 C CNN
1.26 +F 1 "74LS74" H 3300 6800 50 0000 C CNN
1.27 +F 2 "" H 3100 6500 50 0001 C CNN
1.28 +F 3 "74xx/74hc_hct74.pdf" H 3100 6500 50 0001 C CNN
1.29 + 1 3100 6500
1.30 1 0 0 -1
1.31 $EndComp
1.32 $Comp
1.33 @@ -148,13 +148,13 @@
1.34 Wire Wire Line
1.35 3400 5400 3400 5300
1.36 Wire Wire Line
1.37 - 2700 6100 2900 6100
1.38 -Text GLabel 3400 5700 1 50 Input ~ 0
1.39 + 2400 6500 2600 6500
1.40 +Text GLabel 3100 6100 1 50 Input ~ 0
1.41 5V
1.42 -Text GLabel 3300 6500 0 50 Input ~ 0
1.43 +Text GLabel 3000 6900 0 50 Input ~ 0
1.44 5V
1.45 Wire Wire Line
1.46 - 3400 5800 3400 5700
1.47 + 3100 6200 3100 6100
1.48 Text GLabel 4500 5800 1 50 Input ~ 0
1.49 5V
1.50 Wire Wire Line
1.51 @@ -166,14 +166,14 @@
1.52 Wire Wire Line
1.53 4100 6100 4200 6100
1.54 Wire Wire Line
1.55 - 2900 6100 2900 6700
1.56 + 2600 6500 2600 7100
1.57 Wire Wire Line
1.58 - 2900 6700 4100 6700
1.59 + 2600 7100 4100 7100
1.60 Wire Wire Line
1.61 4100 6200 4200 6200
1.62 -Connection ~ 2900 6100
1.63 +Connection ~ 2600 6500
1.64 Wire Wire Line
1.65 - 2900 6100 3100 6100
1.66 + 2600 6500 2800 6500
1.67 $Comp
1.68 L 74xx:74LS86 IC14
1.69 U 1 1 61E1F285
1.70 @@ -188,29 +188,27 @@
1.71 1 0 0 -1
1.72 $EndComp
1.73 Wire Wire Line
1.74 - 4100 6700 4100 6200
1.75 + 4100 7100 4100 6200
1.76 Wire Wire Line
1.77 - 3300 6500 3400 6500
1.78 + 3000 6900 3100 6900
1.79 Wire Wire Line
1.80 - 3400 6500 3400 6400
1.81 + 3100 6900 3100 6800
1.82 Wire Wire Line
1.83 3700 5100 4000 5100
1.84 Wire Wire Line
1.85 - 3700 6200 3800 6200
1.86 -Wire Wire Line
1.87 - 3800 6200 3800 6600
1.88 + 3400 6600 3500 6600
1.89 Wire Wire Line
1.90 - 3800 6600 3000 6600
1.91 + 3500 6600 3500 7000
1.92 Wire Wire Line
1.93 - 3000 6600 3000 6000
1.94 + 3500 7000 2700 7000
1.95 Wire Wire Line
1.96 - 3000 6000 3100 6000
1.97 + 2700 7000 2700 6400
1.98 Wire Wire Line
1.99 - 3700 6000 3800 6000
1.100 + 2700 6400 2800 6400
1.101 Wire Wire Line
1.102 - 3800 6000 3800 5300
1.103 + 3400 6400 3600 6400
1.104 Wire Wire Line
1.105 - 3800 5300 4000 5300
1.106 + 3850 5300 4000 5300
1.107 Text GLabel 1200 6200 1 50 Input ~ 0
1.108 5V
1.109 Text GLabel 800 5300 1 50 Input ~ 0
1.110 @@ -530,14 +528,14 @@
1.111 $Comp
1.112 L Device:R R50
1.113 U 1 1 61E6659B
1.114 -P 7850 2500
1.115 +P 8150 2500
1.116 AR Path="/61DB955D/61DF7FF4/61E6659B" Ref="R50" Part="1"
1.117 AR Path="/62411C42/61E6659B" Ref="R50" Part="1"
1.118 -F 0 "R50" V 7750 2500 50 0000 C CNN
1.119 -F 1 "820R" V 7950 2500 50 0000 C CNN
1.120 -F 2 "" V 7780 2500 50 0001 C CNN
1.121 -F 3 "~" H 7850 2500 50 0001 C CNN
1.122 - 1 7850 2500
1.123 +F 0 "R50" V 8050 2500 50 0000 C CNN
1.124 +F 1 "820R" V 8250 2500 50 0000 C CNN
1.125 +F 2 "" V 8080 2500 50 0001 C CNN
1.126 +F 3 "~" H 8150 2500 50 0001 C CNN
1.127 + 1 8150 2500
1.128 0 1 1 0
1.129 $EndComp
1.130 $Comp
1.131 @@ -636,7 +634,7 @@
1.132 Wire Wire Line
1.133 6900 3000 6900 2500
1.134 Wire Wire Line
1.135 - 6900 2500 7700 2500
1.136 + 6900 2500 8000 2500
1.137 Connection ~ 6600 3000
1.138 Wire Wire Line
1.139 7800 3000 8000 3000
1.140 @@ -701,7 +699,7 @@
1.141 8500 3000 8500 3500
1.142 Connection ~ 8500 3500
1.143 Wire Wire Line
1.144 - 8000 2500 8500 2500
1.145 + 8300 2500 8500 2500
1.146 Wire Wire Line
1.147 8500 2500 8500 3000
1.148 Connection ~ 8500 3000
1.149 @@ -921,8 +919,8 @@
1.150 P 9500 2650
1.151 AR Path="/61DB955D/61DF7FF4/620BD8BB" Ref="C21" Part="1"
1.152 AR Path="/62411C42/620BD8BB" Ref="C21" Part="1"
1.153 -F 0 "C21" H 9400 2600 50 0000 R CNN
1.154 -F 1 "47pF" H 9400 2700 50 0000 R CNN
1.155 +F 0 "C21" H 9600 2600 50 0000 L CNN
1.156 +F 1 "47pF" H 9600 2700 50 0000 L CNN
1.157 F 2 "" H 9538 2500 50 0001 C CNN
1.158 F 3 "~" H 9500 2650 50 0001 C CNN
1.159 1 9500 2650
1.160 @@ -933,7 +931,7 @@
1.161 Wire Wire Line
1.162 9400 3600 9500 3600
1.163 Wire Wire Line
1.164 - 9500 3600 9500 3300
1.165 + 9500 3600 9500 3500
1.166 Text GLabel 8900 3500 1 50 Input ~ 0
1.167 5V
1.168 Wire Wire Line
1.169 @@ -963,71 +961,58 @@
1.170 8700 4400 9200 4400
1.171 Connection ~ 9200 4400
1.172 Wire Wire Line
1.173 - 9200 4400 9200 4100
1.174 + 9200 4400 9200 4300
1.175 $Comp
1.176 L Device:R R30
1.177 U 1 1 62144EE5
1.178 -P 9700 4350
1.179 +P 9700 4550
1.180 AR Path="/61DB955D/61DF7FF4/62144EE5" Ref="R30" Part="1"
1.181 AR Path="/62411C42/62144EE5" Ref="R30" Part="1"
1.182 -F 0 "R30" H 9770 4396 50 0000 L CNN
1.183 -F 1 "120000R" H 9770 4305 50 0000 L CNN
1.184 -F 2 "" V 9630 4350 50 0001 C CNN
1.185 -F 3 "~" H 9700 4350 50 0001 C CNN
1.186 - 1 9700 4350
1.187 +F 0 "R30" H 9770 4596 50 0000 L CNN
1.188 +F 1 "120000R" H 9770 4505 50 0000 L CNN
1.189 +F 2 "" V 9630 4550 50 0001 C CNN
1.190 +F 3 "~" H 9700 4550 50 0001 C CNN
1.191 + 1 9700 4550
1.192 1 0 0 -1
1.193 $EndComp
1.194 -Text GLabel 9700 4600 3 50 Input ~ 0
1.195 +Text GLabel 9700 4800 3 50 Input ~ 0
1.196 0V
1.197 Wire Wire Line
1.198 - 9700 4600 9700 4500
1.199 + 9700 4800 9700 4700
1.200 Wire Wire Line
1.201 - 9700 4200 9700 4100
1.202 + 9700 4400 9700 4300
1.203 Wire Wire Line
1.204 - 9700 4100 9200 4100
1.205 -Connection ~ 9200 4100
1.206 + 9700 4300 9200 4300
1.207 +Connection ~ 9200 4300
1.208 Wire Wire Line
1.209 - 9200 4100 9200 3900
1.210 + 9200 4300 9200 3900
1.211 $Comp
1.212 L Device:R R37
1.213 U 1 1 621794AB
1.214 -P 9700 3550
1.215 +P 9700 3750
1.216 AR Path="/61DB955D/61DF7FF4/621794AB" Ref="R37" Part="1"
1.217 AR Path="/62411C42/621794AB" Ref="R37" Part="1"
1.218 -F 0 "R37" H 9770 3596 50 0000 L CNN
1.219 -F 1 "1000R" H 9770 3505 50 0000 L CNN
1.220 -F 2 "" V 9630 3550 50 0001 C CNN
1.221 -F 3 "~" H 9700 3550 50 0001 C CNN
1.222 - 1 9700 3550
1.223 +F 0 "R37" H 9770 3796 50 0000 L CNN
1.224 +F 1 "1000R" H 9770 3705 50 0000 L CNN
1.225 +F 2 "" V 9630 3750 50 0001 C CNN
1.226 +F 3 "~" H 9700 3750 50 0001 C CNN
1.227 + 1 9700 3750
1.228 1 0 0 -1
1.229 $EndComp
1.230 -Text GLabel 9700 3800 3 50 Input ~ 0
1.231 +Text GLabel 9700 4000 3 50 Input ~ 0
1.232 0V
1.233 Wire Wire Line
1.234 - 9700 3800 9700 3700
1.235 + 9700 4000 9700 3900
1.236 Wire Wire Line
1.237 - 9700 3400 9700 3300
1.238 + 9700 3600 9700 3500
1.239 Wire Wire Line
1.240 - 9700 3300 9500 3300
1.241 + 9700 3500 9500 3500
1.242 Wire Wire Line
1.243 - 9500 3300 9500 3000
1.244 -Connection ~ 9500 3300
1.245 -$Comp
1.246 -L AcornElectron:UM1233-E36 SK4
1.247 -U 1 1 621B02BC
1.248 -P 10150 2150
1.249 -AR Path="/61DB955D/61DF7FF4/621B02BC" Ref="SK4" Part="1"
1.250 -AR Path="/62411C42/621B02BC" Ref="SK4" Part="1"
1.251 -F 0 "SK4" H 10577 2196 50 0000 L CNN
1.252 -F 1 "UM1233-E36" H 10577 2105 50 0000 L CNN
1.253 -F 2 "" H 10150 2350 50 0001 C CNN
1.254 -F 3 "" H 10150 2350 50 0001 C CNN
1.255 - 1 10150 2150
1.256 - 1 0 0 -1
1.257 -$EndComp
1.258 + 9500 3500 9500 3300
1.259 +Connection ~ 9500 3500
1.260 Wire Wire Line
1.261 - 9500 2100 9800 2100
1.262 -NoConn ~ 9800 2200
1.263 + 9500 2100 10050 2100
1.264 +NoConn ~ 10050 2200
1.265 $Comp
1.266 L Device:R R65
1.267 U 1 1 621D44B6
1.268 @@ -1042,7 +1027,7 @@
1.269 1 0 0 -1
1.270 $EndComp
1.271 Wire Wire Line
1.272 - 10150 1300 9700 1300
1.273 + 10400 1300 9700 1300
1.274 Wire Wire Line
1.275 9700 1300 9700 1200
1.276 Text GLabel 9700 800 1 50 Input ~ 0
1.277 @@ -1056,7 +1041,7 @@
1.278 AR Path="/61DB955D/61DF7FF4/621F95D7" Ref="C23" Part="1"
1.279 AR Path="/62411C42/621F95D7" Ref="C23" Part="1"
1.280 F 0 "C23" H 9318 1596 50 0000 L CNN
1.281 -F 1 "47µF" H 9318 1505 50 0000 L CNN
1.282 +F 1 "47µF/TANT" H 9318 1505 38 0000 L CNN
1.283 F 2 "" H 9238 1400 50 0001 C CNN
1.284 F 3 "~" H 9200 1550 50 0001 C CNN
1.285 1 9200 1550
1.286 @@ -1071,12 +1056,12 @@
1.287 Wire Wire Line
1.288 9200 1300 9700 1300
1.289 Connection ~ 9700 1300
1.290 -Text GLabel 10150 2700 3 50 Input ~ 0
1.291 +Text GLabel 10500 2700 2 50 Input ~ 0
1.292 0V
1.293 Wire Wire Line
1.294 - 10150 2700 10150 2600
1.295 + 10400 2700 10400 2600
1.296 Wire Wire Line
1.297 - 10150 1700 10150 1400
1.298 + 10400 1700 10400 1400
1.299 Connection ~ 9500 2100
1.300 $Comp
1.301 L Device:R R?
1.302 @@ -1440,39 +1425,137 @@
1.303 $Comp
1.304 L Device:C C17
1.305 U 1 1 6241CD4D
1.306 -P 10550 3000
1.307 -F 0 "C17" V 10298 3000 50 0000 C CNN
1.308 -F 1 "470pF" V 10389 3000 50 0000 C CNN
1.309 -F 2 "" H 10588 2850 50 0001 C CNN
1.310 -F 3 "~" H 10550 3000 50 0001 C CNN
1.311 - 1 10550 3000
1.312 +P 10550 3300
1.313 +F 0 "C17" V 10298 3300 50 0000 C CNN
1.314 +F 1 "470pF" V 10389 3300 50 0000 C CNN
1.315 +F 2 "" H 10588 3150 50 0001 C CNN
1.316 +F 3 "~" H 10550 3300 50 0001 C CNN
1.317 + 1 10550 3300
1.318 0 1 1 0
1.319 $EndComp
1.320 -Text GLabel 10800 3000 2 50 Output ~ 0
1.321 +Text GLabel 10800 3300 2 50 Output ~ 0
1.322 UHF_IN
1.323 Wire Wire Line
1.324 - 9500 3000 10400 3000
1.325 -Connection ~ 9500 3000
1.326 + 9500 3300 10400 3300
1.327 +Connection ~ 9500 3300
1.328 Wire Wire Line
1.329 - 9500 3000 9500 2800
1.330 + 9500 3300 9500 2800
1.331 Wire Wire Line
1.332 - 10700 3000 10800 3000
1.333 -Text Notes 9900 3200 0 50 ~ 0
1.334 + 10700 3300 10800 3300
1.335 +Text Notes 9900 3500 0 50 ~ 0
1.336 For optional link to SK3 circuit.
1.337 $Comp
1.338 L power:PWR_FLAG #FLG0109
1.339 U 1 1 62024BC2
1.340 -P 10150 1400
1.341 -F 0 "#FLG0109" H 10150 1475 50 0001 C CNN
1.342 -F 1 "PWR_FLAG" V 10150 1528 50 0000 L CNN
1.343 -F 2 "" H 10150 1400 50 0001 C CNN
1.344 -F 3 "~" H 10150 1400 50 0001 C CNN
1.345 - 1 10150 1400
1.346 +P 10400 1400
1.347 +F 0 "#FLG0109" H 10400 1475 50 0001 C CNN
1.348 +F 1 "PWR_FLAG" V 10400 1528 50 0000 L CNN
1.349 +F 2 "" H 10400 1400 50 0001 C CNN
1.350 +F 3 "~" H 10400 1400 50 0001 C CNN
1.351 + 1 10400 1400
1.352 0 1 1 0
1.353 $EndComp
1.354 -Connection ~ 10150 1400
1.355 +Connection ~ 10400 1400
1.356 Wire Wire Line
1.357 - 10150 1400 10150 1300
1.358 + 10400 1400 10400 1300
1.359 Text Notes 10050 1200 0 50 ~ 0
1.360 Note that KiCad gets upset\nwhen connecting passives\nto power input pins.
1.361 +Text Notes 9600 5200 0 50 ~ 0
1.362 +PAL value is 39pF,\nNTSC value is 56pF.
1.363 +$Comp
1.364 +L Jumper:Jumper_3_Bridged12 LK2
1.365 +U 1 1 621C2C53
1.366 +P 3600 5850
1.367 +F 0 "LK2" V 3646 5917 50 0000 L CNN
1.368 +F 1 "PAL/NTSC" V 3555 5917 50 0000 L CNN
1.369 +F 2 "" H 3600 5850 50 0001 C CNN
1.370 +F 3 "~" H 3600 5850 50 0001 C CNN
1.371 + 1 3600 5850
1.372 + 0 -1 -1 0
1.373 +$EndComp
1.374 +Wire Wire Line
1.375 + 3600 6400 3600 6100
1.376 +Wire Wire Line
1.377 + 3750 5850 3850 5850
1.378 +Text GLabel 3500 5500 0 50 Input ~ 0
1.379 +0V
1.380 +Wire Wire Line
1.381 + 3500 5500 3600 5500
1.382 +Wire Wire Line
1.383 + 3600 5500 3600 5600
1.384 +Text Notes 5100 5700 0 50 ~ 0
1.385 +Colour burst > 2.5µs
1.386 +Text Notes 8050 5800 0 50 ~ 0
1.387 +Not fitted for NTSC\n(presumably R50-R57, maybe also L1).
1.388 +Text GLabel 9700 3100 3 50 Input ~ 0
1.389 +0V
1.390 +$Comp
1.391 +L Device:C C?
1.392 +U 1 1 624BA4A0
1.393 +P 9700 2800
1.394 +AR Path="/61DB955D/61DF7FF4/624BA4A0" Ref="C?" Part="1"
1.395 +AR Path="/62411C42/624BA4A0" Ref="C24" Part="1"
1.396 +F 0 "C24" H 9600 2750 50 0000 R CNN
1.397 +F 1 "100nF" H 9600 2850 50 0000 R CNN
1.398 +F 2 "" H 9738 2650 50 0001 C CNN
1.399 +F 3 "~" H 9700 2800 50 0001 C CNN
1.400 + 1 9700 2800
1.401 + -1 0 0 1
1.402 +$EndComp
1.403 +Wire Wire Line
1.404 + 9700 3100 9700 2950
1.405 +$Comp
1.406 +L Jumper:Jumper_2_Open LK5
1.407 +U 1 1 6255E663
1.408 +P 10100 2850
1.409 +F 0 "LK5" V 10100 2948 50 0000 L CNN
1.410 +F 1 "Jumper_2_Open" V 10145 2948 50 0001 L CNN
1.411 +F 2 "" H 10100 2850 50 0001 C CNN
1.412 +F 3 "~" H 10100 2850 50 0001 C CNN
1.413 + 1 10100 2850
1.414 + 0 1 1 0
1.415 +$EndComp
1.416 +Wire Wire Line
1.417 + 10400 2700 10500 2700
1.418 +Text GLabel 10100 3100 3 50 Input ~ 0
1.419 +0V
1.420 +Wire Wire Line
1.421 + 10100 3100 10100 3050
1.422 +$Comp
1.423 +L AcornElectron:UM1233-E36 SK4
1.424 +U 1 1 621B02BC
1.425 +P 10400 2150
1.426 +AR Path="/61DB955D/61DF7FF4/621B02BC" Ref="SK4" Part="1"
1.427 +AR Path="/62411C42/621B02BC" Ref="SK4" Part="1"
1.428 +F 0 "SK4" H 10700 2200 50 0000 L CNN
1.429 +F 1 "UM1233-E36" H 10700 2100 50 0000 L CNN
1.430 +F 2 "" H 10400 2350 50 0001 C CNN
1.431 +F 3 "" H 10400 2350 50 0001 C CNN
1.432 + 1 10400 2150
1.433 + 1 0 0 -1
1.434 +$EndComp
1.435 +Text Notes 10600 1750 0 50 ~ 0
1.436 +NTSC:\nUM1622 LA2/3
1.437 +NoConn ~ 9700 2650
1.438 +NoConn ~ 10100 2650
1.439 +Text Notes 9700 2600 0 38 ~ 0
1.440 +NTSC only\n(not connected)
1.441 +$Comp
1.442 +L power:PWR_FLAG #FLG0110
1.443 +U 1 1 626E446F
1.444 +P 3850 5550
1.445 +F 0 "#FLG0110" H 3850 5625 50 0001 C CNN
1.446 +F 1 "PWR_FLAG" V 3850 5678 50 0000 L CNN
1.447 +F 2 "" H 3850 5550 50 0001 C CNN
1.448 +F 3 "~" H 3850 5550 50 0001 C CNN
1.449 + 1 3850 5550
1.450 + 0 1 1 0
1.451 +$EndComp
1.452 +Text Notes 3950 5500 0 50 ~ 0
1.453 +KiCad workaround
1.454 +Wire Wire Line
1.455 + 3850 5300 3850 5550
1.456 +Connection ~ 3850 5550
1.457 +Wire Wire Line
1.458 + 3850 5550 3850 5850
1.459 $EndSCHEMATC