1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/sound.sch Wed Jan 26 22:13:42 2022 +0100
1.3 @@ -0,0 +1,183 @@
1.4 +EESchema Schematic File Version 4
1.5 +LIBS:AcornElectronMainboard-cache
1.6 +EELAYER 26 0
1.7 +EELAYER END
1.8 +$Descr A4 11693 8268
1.9 +encoding utf-8
1.10 +Sheet 5 9
1.11 +Title ""
1.12 +Date ""
1.13 +Rev ""
1.14 +Comp ""
1.15 +Comment1 ""
1.16 +Comment2 ""
1.17 +Comment3 ""
1.18 +Comment4 ""
1.19 +$EndDescr
1.20 +$Comp
1.21 +L Device:R R?
1.22 +U 1 1 61EC8808
1.23 +P 1600 2350
1.24 +AR Path="/61EC8808" Ref="R?" Part="1"
1.25 +AR Path="/61E9B87F/61EC8808" Ref="R63" Part="1"
1.26 +F 0 "R63" H 1670 2396 50 0000 L CNN
1.27 +F 1 "1000R" H 1670 2305 50 0000 L CNN
1.28 +F 2 "" V 1530 2350 50 0001 C CNN
1.29 +F 3 "~" H 1600 2350 50 0001 C CNN
1.30 + 1 1600 2350
1.31 + 1 0 0 -1
1.32 +$EndComp
1.33 +Wire Wire Line
1.34 + 1400 2600 1600 2600
1.35 +Wire Wire Line
1.36 + 1600 2600 1600 2500
1.37 +$Comp
1.38 +L bc213:BC213 Q?
1.39 +U 1 1 61EC8848
1.40 +P 3300 2900
1.41 +AR Path="/61EC8848" Ref="Q?" Part="1"
1.42 +AR Path="/61E9B87F/61EC8848" Ref="Q4" Part="1"
1.43 +F 0 "Q4" H 3491 2946 50 0000 L CNN
1.44 +F 1 "BC213" H 3491 2855 50 0000 L CNN
1.45 +F 2 "Package_TO_SOT_THT:TO-92_Inline" H 3500 2825 50 0001 L CIN
1.46 +F 3 "https://www.futurlec.com/Transistors/BC213L.shtml" H 3300 2900 50 0001 L CNN
1.47 + 1 3300 2900
1.48 + 1 0 0 1
1.49 +$EndComp
1.50 +$Comp
1.51 +L bc183:BC183 Q?
1.52 +U 1 1 61EC884F
1.53 +P 3300 2300
1.54 +AR Path="/61EC884F" Ref="Q?" Part="1"
1.55 +AR Path="/61E9B87F/61EC884F" Ref="Q3" Part="1"
1.56 +F 0 "Q3" H 3491 2346 50 0000 L CNN
1.57 +F 1 "BC183" H 3491 2255 50 0000 L CNN
1.58 +F 2 "Package_TO_SOT_THT:TO-92_Inline" H 3500 2225 50 0001 L CIN
1.59 +F 3 "https://www.futurlec.com/Transistors/BC182L.shtml" H 3300 2300 50 0001 L CNN
1.60 + 1 3300 2300
1.61 + 1 0 0 -1
1.62 +$EndComp
1.63 +$Comp
1.64 +L Device:R R?
1.65 +U 1 1 61EC8856
1.66 +P 4750 2600
1.67 +AR Path="/61EC8856" Ref="R?" Part="1"
1.68 +AR Path="/61E9B87F/61EC8856" Ref="R61" Part="1"
1.69 +F 0 "R61" V 4650 2600 50 0000 C CNN
1.70 +F 1 "47R" V 4850 2600 50 0000 C CNN
1.71 +F 2 "" V 4680 2600 50 0001 C CNN
1.72 +F 3 "~" H 4750 2600 50 0001 C CNN
1.73 + 1 4750 2600
1.74 + 0 1 1 0
1.75 +$EndComp
1.76 +Wire Wire Line
1.77 + 3400 2700 3400 2600
1.78 +Wire Wire Line
1.79 + 3400 2600 4600 2600
1.80 +Connection ~ 3400 2600
1.81 +Wire Wire Line
1.82 + 3100 2300 3000 2300
1.83 +Wire Wire Line
1.84 + 3000 2300 3000 2600
1.85 +Wire Wire Line
1.86 + 3000 2900 3100 2900
1.87 +Wire Wire Line
1.88 + 1600 2600 3000 2600
1.89 +Connection ~ 1600 2600
1.90 +Connection ~ 3000 2600
1.91 +Wire Wire Line
1.92 + 3000 2600 3000 2900
1.93 +Wire Wire Line
1.94 + 3400 2600 3400 2500
1.95 +$Comp
1.96 +L Device:CP C?
1.97 +U 1 1 61EC8868
1.98 +P 4050 2400
1.99 +AR Path="/61EC8868" Ref="C?" Part="1"
1.100 +AR Path="/61E9B87F/61EC8868" Ref="C25" Part="1"
1.101 +F 0 "C25" V 4300 2400 50 0000 C CNN
1.102 +F 1 "22µF" V 4200 2400 50 0000 C CNN
1.103 +F 2 "" H 4088 2250 50 0001 C CNN
1.104 +F 3 "~" H 4050 2400 50 0001 C CNN
1.105 + 1 4050 2400
1.106 + 0 -1 -1 0
1.107 +$EndComp
1.108 +$Comp
1.109 +L Device:R R?
1.110 +U 1 1 61EC886F
1.111 +P 4050 2000
1.112 +AR Path="/61EC886F" Ref="R?" Part="1"
1.113 +AR Path="/61E9B87F/61EC886F" Ref="R66" Part="1"
1.114 +F 0 "R66" V 3843 2000 50 0000 C CNN
1.115 +F 1 "10R" V 3934 2000 50 0000 C CNN
1.116 +F 2 "" V 3980 2000 50 0001 C CNN
1.117 +F 3 "~" H 4050 2000 50 0001 C CNN
1.118 + 1 4050 2000
1.119 + 0 1 1 0
1.120 +$EndComp
1.121 +Wire Wire Line
1.122 + 3900 2400 3800 2400
1.123 +Wire Wire Line
1.124 + 3800 2400 3800 2000
1.125 +Wire Wire Line
1.126 + 3800 2000 3900 2000
1.127 +Text GLabel 3400 3200 3 50 Input ~ 0
1.128 +0V
1.129 +Wire Wire Line
1.130 + 3400 2100 3400 2000
1.131 +Wire Wire Line
1.132 + 3400 2000 3800 2000
1.133 +Connection ~ 3800 2000
1.134 +Text GLabel 4300 2000 2 50 Input ~ 0
1.135 +5V
1.136 +Text GLabel 4300 2400 2 50 Input ~ 0
1.137 +0V
1.138 +Wire Wire Line
1.139 + 4200 2000 4300 2000
1.140 +Wire Wire Line
1.141 + 4200 2400 4300 2400
1.142 +$Comp
1.143 +L Device:CP C?
1.144 +U 1 1 61EC8881
1.145 +P 5250 2600
1.146 +AR Path="/61EC8881" Ref="C?" Part="1"
1.147 +AR Path="/61E9B87F/61EC8881" Ref="C11" Part="1"
1.148 +F 0 "C11" V 5500 2600 50 0000 C CNN
1.149 +F 1 "10µF" V 5400 2600 50 0000 C CNN
1.150 +F 2 "" H 5288 2450 50 0001 C CNN
1.151 +F 3 "~" H 5250 2600 50 0001 C CNN
1.152 + 1 5250 2600
1.153 + 0 -1 -1 0
1.154 +$EndComp
1.155 +Wire Wire Line
1.156 + 4900 2600 5100 2600
1.157 +$Comp
1.158 +L Device:Speaker SPKR?
1.159 +U 1 1 61EC8889
1.160 +P 5900 2600
1.161 +AR Path="/61EC8889" Ref="SPKR?" Part="1"
1.162 +AR Path="/61E9B87F/61EC8889" Ref="SPKR" Part="1"
1.163 +F 0 "SPKR" H 6069 2596 50 0000 L CNN
1.164 +F 1 "16R" H 6069 2505 50 0000 L CNN
1.165 +F 2 "" H 5900 2400 50 0001 C CNN
1.166 +F 3 "~" H 5890 2550 50 0001 C CNN
1.167 + 1 5900 2600
1.168 + 1 0 0 -1
1.169 +$EndComp
1.170 +Wire Wire Line
1.171 + 5400 2600 5700 2600
1.172 +Text GLabel 5600 2700 0 50 Input ~ 0
1.173 +0V
1.174 +Wire Wire Line
1.175 + 5600 2700 5700 2700
1.176 +Wire Wire Line
1.177 + 3400 3200 3400 3100
1.178 +Text GLabel 1700 2100 2 50 Output ~ 0
1.179 +SOUND_OUTPUT_EXPANSION
1.180 +Wire Wire Line
1.181 + 1600 2200 1600 2100
1.182 +Wire Wire Line
1.183 + 1600 2100 1700 2100
1.184 +Text GLabel 1400 2600 0 50 Input ~ 0
1.185 +SOUND_OUTPUT
1.186 +$EndSCHEMATC