Schematic capture draft complete.

Author: thejpster

audio.sch

@@ -3,31 +3,244 @@ EELAYER 30 0
 EELAYER END
 $Descr A4 11693 8268
 encoding utf-8
-Sheet 4 11
-Title "Neotron 32K"
-Date "2019-12-08"
-Rev "0.1"
-Comp "github.com/thejpster"
-Comment1 ""
-Comment2 ""
+Sheet 3 10
+Title "Neotron 32K Main PCB"
+Date "2019-12-15"
+Rev "0.5"
+Comp "github.com/neotron-compute/Neotron-32-Hardware"
+Comment1 "Copyright (c) Jonathan 'theJPster' Pallant"
+Comment2 "CC BY-SA 4.0"
 Comment3 ""
 Comment4 ""
 $EndDescr
 $Comp
 L Connector:AudioJack3 J?
 U 1 1 5DF41F43
-P 5900 3350
+P 7100 4150
 AR Path="/5DF41F43" Ref="J?"  Part="1" 
-AR Path="/5DF3EA3F/5DF41F43" Ref="J401"  Part="1" 
-F 0 "J401" H 5600 3150 50  0000 R CNN
-F 1 "3.5mm Audio Jack TRS" H 6350 3550 50  0000 R CNN
-F 2 "Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_Horizontal" H 5900 3350 50  0001 C CNN
-F 3 "~" H 5900 3350 50  0001 C CNN
-	1    5900 3350
+AR Path="/5DF3EA3F/5DF41F43" Ref="J7"  Part="1" 
+F 0 "J7" H 6800 3950 50  0000 R CNN
+F 1 "3.5mm Audio Jack TRS" H 7550 4350 50  0000 R CNN
+F 2 "Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_Horizontal" H 7100 4150 50  0001 C CNN
+F 3 "~" H 7100 4150 50  0001 C CNN
+	1    7100 4150
 	-1   0    0    1   
 $EndComp
-Text HLabel 1700 1400 0    50   Input ~ 0
+Text HLabel 4300 3900 0    50   Input ~ 0
 AUDIO_L_FROM_MCU
-Text HLabel 1700 1500 0    50   Input ~ 0
+Text HLabel 4300 3200 0    50   Input ~ 0
 AUDIO_R_FROM_MCU
+$Comp
+L Connector:Conn_01x03_Male J8
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+P 7250 3300
+F 0 "J8" H 7358 3581 50  0000 C CNN
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+F 2 "" H 7250 3300 50  0001 C CNN
+F 3 "~" H 7250 3300 50  0001 C CNN
+	1    7250 3300
+	-1   0    0    1   
+$EndComp
+Text Notes 7500 3700 2    50   ~ 0
+Mono/Stereo Select
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	7050 3300 6350 3300
+Wire Wire Line
+	6250 4050 6900 4050
+Text Label 6850 4050 2    50   ~ 0
+LEFT_SPKR
+Text Label 6850 4150 2    50   ~ 0
+RIGHT_SPKR
+Text Label 6450 3200 0    50   ~ 0
+RIGHT_CHAN
+Text Label 6450 3400 0    50   ~ 0
+LEFT_CHAN
+Text Notes 7300 4500 2    50   ~ 0
+Line Out
+$Comp
+L Device:C C4
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+F 1 "10u" V 6061 3200 50  0000 C CNN
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+F 3 "~" H 5900 3200 50  0001 C CNN
+	1    5900 3200
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+$EndComp
+$Comp
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+F 3 "~" H 5900 3900 50  0001 C CNN
+	1    5900 3900
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+$EndComp
+$Comp
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+F 2 "" V 5530 3400 50  0001 C CNN
+F 3 "~" H 5600 3400 50  0001 C CNN
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+$EndComp
+$Comp
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+$EndComp
+$Comp
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+	1    4700 3900
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:R R10
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L power:GND #PWR025
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+$EndComp
+$Comp
+L Device:C C2
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+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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 $EndSCHEMATC