EESchema Schematic File Version 2 LIBS:power LIBS:device LIBS:switches LIBS:relays LIBS:motors LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:rc6502_backplane LIBS:mounting LIBS:oscillator LIBS:mc6847 LIBS:rca_plug LIBS:vdu_port LIBS:RC6502 VDU-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text GLabel 900 725 0 60 Input ~ 0 A12 Text Notes 8300 7500 2 60 ~ 0 RC6502 Apple 1 SBC Text Notes 10650 7650 2 60 ~ 0 A $Comp L 74LS138 U7 U 1 1 5C045924 P 1500 1075 F 0 "U7" H 1500 1575 50 0000 C CNN F 1 "74HCT138" V 1500 1075 50 0000 C CNN F 2 "Housings_DIP:DIP-16_W7.62mm_Socket" H 1500 1075 50 0001 C CNN F 3 "" H 1500 1075 50 0001 C CNN 1 1500 1075 1 0 0 -1 $EndComp Text GLabel 900 825 0 60 Input ~ 0 A13 Text GLabel 900 925 0 60 Input ~ 0 A14 Text GLabel 900 1225 0 60 Input ~ 0 A15 Wire Wire Line 900 1325 600 1325 Wire Wire Line 600 1325 600 1575 Wire Wire Line 900 1425 600 1425 Connection ~ 600 1425 $Comp L HM62256BLP-7 U2 U 1 1 5C045929 P 1575 6800 F 0 "U2" H 1275 7700 50 0000 C CNN F 1 "HM62256BLP-7" V 1575 6825 50 0000 C CNN F 2 "Housings_DIP:DIP-28_W15.24mm_Socket" H 1575 6800 50 0001 C CIN F 3 "" H 1575 6800 50 0001 C CNN 1 1575 6800 1 0 0 -1 $EndComp $Comp L Oscillator X1 U 1 1 5C04593A P 2700 2475 F 0 "X1" H 2500 2725 50 0000 L CNN F 1 "3.579545 MHz" H 2750 2225 50 0000 L CNN F 2 "Oscillator:Oscillator_DIP-14" H 3150 2125 50 0001 C CNN F 3 "" H 2600 2475 50 0001 C CNN 1 2700 2475 1 0 0 -1 $EndComp $Comp L C C7 U 1 1 5C045947 P 5475 7175 F 0 "C7" H 5500 7275 50 0000 L CNN F 1 "100nF" H 5500 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5513 7025 50 0001 C CNN F 3 "" H 5475 7175 50 0001 C CNN 1 5475 7175 1 0 0 -1 $EndComp Wire Wire Line 5775 6975 5775 7025 Wire Wire Line 5775 7375 5775 7325 $Comp L C C6 U 1 1 5C045948 P 5175 7175 F 0 "C6" H 5200 7275 50 0000 L CNN F 1 "100nF" H 5200 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5213 7025 50 0001 C CNN F 3 "" H 5175 7175 50 0001 C CNN 1 5175 7175 1 0 0 -1 $EndComp $Comp L C C5 U 1 1 5C045949 P 4875 7175 F 0 "C5" H 4900 7275 50 0000 L CNN F 1 "100nF" H 4900 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4913 7025 50 0001 C CNN F 3 "" H 4875 7175 50 0001 C CNN 1 4875 7175 1 0 0 -1 $EndComp $Comp L C C4 U 1 1 5C04594A P 4575 7175 F 0 "C4" H 4600 7275 50 0000 L CNN F 1 "100nF" H 4600 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4613 7025 50 0001 C CNN F 3 "" H 4575 7175 50 0001 C CNN 1 4575 7175 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 5C04594B P 4275 7175 F 0 "C3" H 4300 7275 50 0000 L CNN F 1 "100nF" H 4300 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4313 7025 50 0001 C CNN F 3 "" H 4275 7175 50 0001 C CNN 1 4275 7175 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 5C04594C P 3975 7175 F 0 "C2" H 4000 7275 50 0000 L CNN F 1 "100nF" H 4000 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4013 7025 50 0001 C CNN F 3 "" H 3975 7175 50 0001 C CNN 1 3975 7175 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 5C04594D P 3675 7175 F 0 "C1" H 3700 7275 50 0000 L CNN F 1 "100nF" H 3700 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 3713 7025 50 0001 C CNN F 3 "" H 3675 7175 50 0001 C CNN 1 3675 7175 1 0 0 -1 $EndComp Wire Wire Line 3675 6975 6625 6975 Wire Wire Line 3975 6975 3975 7025 Connection ~ 5775 6975 Wire Wire Line 4275 7025 4275 6975 Connection ~ 4275 6975 Wire Wire Line 4575 7025 4575 6975 Connection ~ 4575 6975 Wire Wire Line 4875 7025 4875 6975 Connection ~ 4875 6975 Wire Wire Line 5175 7025 5175 6975 Connection ~ 5175 6975 Wire Wire Line 5475 7025 5475 6975 Connection ~ 5475 6975 Wire Wire Line 3975 7325 3975 7375 Wire Wire Line 3675 7375 6625 7375 Connection ~ 5775 7375 Wire Wire Line 5475 7325 5475 7375 Connection ~ 5475 7375 Wire Wire Line 5175 7325 5175 7375 Connection ~ 5175 7375 Wire Wire Line 4875 7325 4875 7375 Connection ~ 4875 7375 Wire Wire Line 4575 7325 4575 7375 Connection ~ 4575 7375 Wire Wire Line 4275 7325 4275 7375 Connection ~ 4275 7375 Text GLabel 10250 4250 0 60 Output ~ 0 PHI2 Text GLabel 10250 4750 0 60 Output ~ 0 R/~W Text GLabel 10250 2450 0 60 Output ~ 0 A15 Text GLabel 10250 2550 0 60 Output ~ 0 A14 Text GLabel 10250 2650 0 60 Output ~ 0 A13 Text GLabel 10250 2750 0 60 Output ~ 0 A12 Text GLabel 10250 2850 0 60 Output ~ 0 A11 Text GLabel 10250 2950 0 60 Output ~ 0 A10 Text GLabel 10250 3050 0 60 Output ~ 0 A9 Text GLabel 10250 3150 0 60 Output ~ 0 A8 Text GLabel 10250 3250 0 60 Output ~ 0 A7 Text GLabel 10250 3350 0 60 Output ~ 0 A6 Text GLabel 10250 3450 0 60 Output ~ 0 A5 Text GLabel 10250 3550 0 60 Output ~ 0 A4 Text GLabel 10250 3650 0 60 Output ~ 0 A3 Text GLabel 10250 3750 0 60 Output ~ 0 A2 Text GLabel 10250 3850 0 60 Output ~ 0 A1 Text GLabel 10250 3950 0 60 Output ~ 0 A0 Text GLabel 9475 4150 1 60 Input ~ 0 ~FS NoConn ~ 10400 5850 NoConn ~ 10400 5950 $Comp L C C8 U 1 1 5C045950 P 5775 7175 F 0 "C8" H 5800 7275 50 0000 L CNN F 1 "100nF" H 5800 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5813 7025 50 0001 C CNN F 3 "" H 5775 7175 50 0001 C CNN 1 5775 7175 1 0 0 -1 $EndComp Wire Wire Line 3675 6975 3675 7025 Connection ~ 3975 6975 Wire Wire Line 3675 7325 3675 7375 Connection ~ 3975 7375 $Comp L Mounting J4 U 1 1 5C045951 P 10725 800 F 0 "J4" V 10825 800 50 0000 C CNN F 1 "Hole" V 10825 800 50 0001 C CNN F 2 "mounting:Mounting" H 10725 800 50 0001 C CNN F 3 "" H 10725 800 50 0001 C CNN 1 10725 800 0 1 1 0 $EndComp $Comp L Mounting J6 U 1 1 5C045952 P 10975 800 F 0 "J6" V 11075 800 50 0000 C CNN F 1 "Hole" V 11075 800 50 0001 C CNN F 2 "mounting:Mounting" H 10975 800 50 0001 C CNN F 3 "" H 10975 800 50 0001 C CNN 1 10975 800 0 1 1 0 $EndComp $Comp L Mounting J5 U 1 1 5C045953 P 10850 800 F 0 "J5" V 10950 800 50 0000 C CNN F 1 "Hole" V 10950 800 50 0001 C CNN F 2 "mounting:Mounting" H 10850 800 50 0001 C CNN F 3 "" H 10850 800 50 0001 C CNN 1 10850 800 0 1 1 0 $EndComp $Comp L Mounting J7 U 1 1 5C045954 P 11100 800 F 0 "J7" V 11200 800 50 0000 C CNN F 1 "Hole" V 11200 800 50 0001 C CNN F 2 "mounting:Mounting" H 11100 800 50 0001 C CNN F 3 "" H 11100 800 50 0001 C CNN 1 11100 800 0 1 1 0 $EndComp $Comp L RC6502_Backplane J1 U 1 1 5C0478BD P 10600 4350 F 0 "J1" H 10600 6350 50 0000 C CNN F 1 "RC6502_Backplane" V 11050 4300 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x39_Pitch2.54mm" H 10600 4350 50 0001 C CNN F 3 "" H 10600 4350 50 0001 C CNN 1 10600 4350 1 0 0 -1 $EndComp $Comp L VCC #PWR01 U 1 1 5C04B53B P 9650 4050 F 0 "#PWR01" H 9650 3900 50 0001 C CNN F 1 "VCC" H 9650 4200 50 0000 C CNN F 2 "" H 9650 4050 50 0001 C CNN F 3 "" H 9650 4050 50 0001 C CNN 1 9650 4050 1 0 0 -1 $EndComp NoConn ~ 10400 6050 NoConn ~ 10400 4850 NoConn ~ 10400 4950 Wire Wire Line 10250 2450 10400 2450 Wire Wire Line 10250 2550 10400 2550 Wire Wire Line 10250 2650 10400 2650 Wire Wire Line 10400 2750 10250 2750 Wire Wire Line 10250 2850 10400 2850 Wire Wire Line 10400 2950 10250 2950 Wire Wire Line 10250 3050 10400 3050 Wire Wire Line 10400 3150 10250 3150 Wire Wire Line 10250 3250 10400 3250 Wire Wire Line 10400 3350 10250 3350 Wire Wire Line 10250 3450 10400 3450 Wire Wire Line 10250 3550 10400 3550 Wire Wire Line 10400 3650 10250 3650 Wire Wire Line 10250 3750 10400 3750 Wire Wire Line 10400 3850 10250 3850 Wire Wire Line 10250 3950 10400 3950 Wire Wire Line 10250 4250 10400 4250 Wire Wire Line 9675 4550 10400 4550 Wire Wire Line 10250 4750 10400 4750 Wire Wire Line 10250 5050 10400 5050 Wire Wire Line 10400 5150 10250 5150 Wire Wire Line 10250 5250 10400 5250 Wire Wire Line 10400 5350 10250 5350 Wire Wire Line 10250 5450 10400 5450 Wire Wire Line 10400 5550 10250 5550 Wire Wire Line 10250 5650 10400 5650 Wire Wire Line 10400 5750 10250 5750 $Comp L 74LS244 U4 U 1 1 5C055918 P 8350 3525 F 0 "U4" H 8350 3325 50 0000 C CNN F 1 "74LS244" H 8350 3725 50 0000 C CNN F 2 "Housings_DIP:DIP-20_W7.62mm_Socket" H 8350 3525 50 0001 C CNN F 3 "" H 8350 3525 50 0001 C CNN 1 8350 3525 -1 0 0 1 $EndComp Wire Wire Line 9650 4150 9650 4050 $Comp L 74LS244 U3 U 1 1 5C056659 P 8350 2350 F 0 "U3" H 8350 2150 50 0000 C CNN F 1 "74LS244" H 8350 2550 50 0000 C CNN F 2 "Housings_DIP:DIP-20_W7.62mm_Socket" H 8350 2350 50 0001 C CNN F 3 "" H 8350 2350 50 0001 C CNN 1 8350 2350 -1 0 0 1 $EndComp Text GLabel 9050 3325 2 60 Input ~ 0 A7 Text GLabel 9050 3425 2 60 Input ~ 0 A6 Text GLabel 9050 3525 2 60 Input ~ 0 A5 Text GLabel 9050 3625 2 60 Input ~ 0 A4 Text GLabel 9050 3725 2 60 Input ~ 0 A3 Text GLabel 9050 3825 2 60 Input ~ 0 A2 Text GLabel 9050 3925 2 60 Input ~ 0 A1 Text GLabel 9050 4025 2 60 Input ~ 0 A0 Text GLabel 9050 1575 2 60 Input ~ 0 A12 Text GLabel 9050 1675 2 60 Input ~ 0 A11 Text GLabel 9050 2650 2 60 Input ~ 0 A10 Text GLabel 9050 2750 2 60 Input ~ 0 A9 Text GLabel 9050 2850 2 60 Input ~ 0 A8 $Comp L 74LS245 U5 U 1 1 5C057ABB P 8350 4750 F 0 "U5" H 8350 4950 50 0000 C BNN F 1 "74LS245" H 8350 4550 50 0000 C CNN F 2 "Housings_DIP:DIP-20_W7.62mm_Socket" H 8350 4750 50 0001 C CNN F 3 "" H 8350 4750 50 0001 C CNN 1 8350 4750 1 0 0 -1 $EndComp Wire Wire Line 9650 4150 10400 4150 Text GLabel 9050 4250 2 60 BiDi ~ 0 D7 Text GLabel 9050 4350 2 60 BiDi ~ 0 D6 Text GLabel 9050 4450 2 60 BiDi ~ 0 D5 Text GLabel 9050 4550 2 60 BiDi ~ 0 D4 Text GLabel 9050 4650 2 60 BiDi ~ 0 D3 Text GLabel 9050 4750 2 60 BiDi ~ 0 D2 Text GLabel 9050 4850 2 60 BiDi ~ 0 D1 Text GLabel 9050 4950 2 60 BiDi ~ 0 D0 Text GLabel 10250 5750 0 60 BiDi ~ 0 D7 Text GLabel 10250 5650 0 60 BiDi ~ 0 D6 Text GLabel 10250 5550 0 60 BiDi ~ 0 D5 Text GLabel 10250 5450 0 60 BiDi ~ 0 D4 Text GLabel 10250 5350 0 60 BiDi ~ 0 D3 Text GLabel 10250 5250 0 60 BiDi ~ 0 D2 Text GLabel 10250 5150 0 60 BiDi ~ 0 D1 Text GLabel 10250 5050 0 60 BiDi ~ 0 D0 $Comp L Conn_02x07_Odd_Even J2 U 1 1 5C0413AA P 2600 1025 F 0 "J2" H 2650 1325 50 0000 C CNN F 1 "VDU_BASE" H 2650 625 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x07_Pitch2.54mm" H 2600 1025 50 0001 C CNN F 3 "" H 2600 1025 50 0001 C CNN 1 2600 1025 1 0 0 -1 $EndComp Wire Wire Line 2100 725 2400 725 Wire Wire Line 2100 825 2400 825 Wire Wire Line 2100 925 2400 925 Wire Wire Line 2100 1025 2400 1025 Wire Wire Line 2100 1125 2400 1125 NoConn ~ 2100 1425 Wire Wire Line 2900 725 3300 725 Wire Wire Line 2975 725 2975 1325 Wire Wire Line 2975 1125 2900 1125 Wire Wire Line 2900 1025 2975 1025 Connection ~ 2975 1025 Wire Wire Line 2900 925 2975 925 Connection ~ 2975 925 Wire Wire Line 2900 825 2975 825 Connection ~ 2975 825 Text Notes 2125 1425 0 60 ~ 0 ROM Text Notes 2125 1125 0 60 ~ 0 $C000 Text Notes 2125 1025 0 60 ~ 0 $B000 Text Notes 2125 925 0 60 ~ 0 $A000 Text Notes 2125 825 0 60 ~ 0 $9000 Text Notes 2125 725 0 60 ~ 0 $8000 Connection ~ 2975 725 Text GLabel 3300 725 2 60 Output ~ 0 VDU_BASE Text GLabel 3150 2475 2 60 Output ~ 0 VDU_CLK $Comp L GND #PWR02 U 1 1 5C0463DB P 2700 2775 F 0 "#PWR02" H 2700 2525 50 0001 C CNN F 1 "GND" H 2700 2625 50 0000 C CNN F 2 "" H 2700 2775 50 0001 C CNN F 3 "" H 2700 2775 50 0001 C CNN 1 2700 2775 1 0 0 -1 $EndComp $Comp L VCC #PWR03 U 1 1 5C0465FA P 2700 2175 F 0 "#PWR03" H 2700 2025 50 0001 C CNN F 1 "VCC" H 2700 2325 50 0000 C CNN F 2 "" H 2700 2175 50 0001 C CNN F 3 "" H 2700 2175 50 0001 C CNN 1 2700 2175 1 0 0 -1 $EndComp $Comp L VCC #PWR04 U 1 1 5C046B61 P 6625 6900 F 0 "#PWR04" H 6625 6750 50 0001 C CNN F 1 "VCC" H 6625 7050 50 0000 C CNN F 2 "" H 6625 6900 50 0001 C CNN F 3 "" H 6625 6900 50 0001 C CNN 1 6625 6900 1 0 0 -1 $EndComp $Comp L GND #PWR05 U 1 1 5C046BC0 P 6625 7450 F 0 "#PWR05" H 6625 7200 50 0001 C CNN F 1 "GND" H 6625 7300 50 0000 C CNN F 2 "" H 6625 7450 50 0001 C CNN F 3 "" H 6625 7450 50 0001 C CNN 1 6625 7450 1 0 0 -1 $EndComp Text GLabel 7650 3325 0 60 Output ~ 0 VA7 Text GLabel 7650 3425 0 60 Output ~ 0 VA6 Text GLabel 7650 3525 0 60 Output ~ 0 VA5 Text GLabel 7650 3625 0 60 Output ~ 0 VA4 Text GLabel 7650 3725 0 60 Output ~ 0 VA3 Text GLabel 7650 3825 0 60 Output ~ 0 VA2 Text GLabel 7650 3925 0 60 Output ~ 0 VA1 Text GLabel 7650 4025 0 60 Output ~ 0 VA0 Text GLabel 7650 2650 0 60 Output ~ 0 VA10 Text GLabel 7650 2750 0 60 Output ~ 0 VA9 Text GLabel 7650 2850 0 60 Output ~ 0 VA8 $Comp L 74LS374 U6 U 1 1 5C049977 P 8350 5950 F 0 "U6" H 8350 5850 50 0000 C CNN F 1 "74LS374" H 8350 6050 50 0000 C CNN F 2 "Housings_DIP:DIP-20_W7.62mm_Socket" H 8350 5950 50 0001 C CNN F 3 "" H 8350 5950 50 0001 C CNN 1 8350 5950 -1 0 0 1 $EndComp Text GLabel 9050 5750 2 60 Input ~ 0 D7 Text GLabel 9050 5850 2 60 Input ~ 0 D6 Text GLabel 9050 5950 2 60 Input ~ 0 D5 Text GLabel 9050 6050 2 60 Input ~ 0 D4 Text GLabel 9050 6150 2 60 Input ~ 0 D3 Text GLabel 9050 6250 2 60 Input ~ 0 D2 Text GLabel 9050 6350 2 60 Input ~ 0 D1 Text GLabel 9050 6450 2 60 Input ~ 0 D0 $Comp L GND #PWR06 U 1 1 5C04D9C7 P 600 1575 F 0 "#PWR06" H 600 1325 50 0001 C CNN F 1 "GND" H 600 1425 50 0000 C CNN F 2 "" H 600 1575 50 0001 C CNN F 3 "" H 600 1575 50 0001 C CNN 1 600 1575 1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 5C04E709 P 9800 5525 F 0 "#PWR07" H 9800 5275 50 0001 C CNN F 1 "GND" H 9800 5375 50 0000 C CNN F 2 "" H 9800 5525 50 0001 C CNN F 3 "" H 9800 5525 50 0001 C CNN 1 9800 5525 1 0 0 -1 $EndComp Wire Wire Line 9050 5450 9800 5450 Text GLabel 7650 4250 0 60 BiDi ~ 0 VD7 Text GLabel 7650 4350 0 60 BiDi ~ 0 VD6 Text GLabel 7650 4450 0 60 BiDi ~ 0 VD5 Text GLabel 7650 4550 0 60 BiDi ~ 0 VD4 Text GLabel 7650 4650 0 60 BiDi ~ 0 VD3 Text GLabel 7650 4750 0 60 BiDi ~ 0 VD2 Text GLabel 7650 4850 0 60 BiDi ~ 0 VD1 Text GLabel 7650 4950 0 60 BiDi ~ 0 VD0 $Comp L MC6847 U1 U 1 1 5C053F7E P 5600 2050 F 0 "U1" H 5600 2300 60 0000 C CNN F 1 "MC6847" V 5600 1950 60 0000 C CNN F 2 "Housings_DIP:DIP-40_W15.24mm_Socket" H 5100 2250 60 0001 C CNN F 3 "" H 5100 2250 60 0000 C CNN 1 5600 2050 1 0 0 -1 $EndComp Text GLabel 4800 1150 0 60 Output ~ 0 VA0 Text GLabel 4800 1250 0 60 Output ~ 0 VA1 Text GLabel 4800 1350 0 60 Output ~ 0 VA2 Text GLabel 4800 1450 0 60 Output ~ 0 VA3 Text GLabel 4800 1550 0 60 Output ~ 0 VA4 Text GLabel 4800 1650 0 60 Output ~ 0 VA5 Text GLabel 4800 1750 0 60 Output ~ 0 VA6 Text GLabel 4800 1850 0 60 Output ~ 0 VA7 Text GLabel 4800 2350 0 60 Output ~ 0 VA12 Text GLabel 4800 2250 0 60 Output ~ 0 VA11 Text GLabel 4800 2150 0 60 Output ~ 0 VA10 Text GLabel 4800 2050 0 60 Output ~ 0 VA9 Text GLabel 4800 1950 0 60 Output ~ 0 VA8 Text GLabel 925 6050 0 60 Input ~ 0 VA0 Text GLabel 925 6150 0 60 Input ~ 0 VA1 Text GLabel 925 6250 0 60 Input ~ 0 VA2 Text GLabel 925 6350 0 60 Input ~ 0 VA3 Text GLabel 925 6450 0 60 Input ~ 0 VA4 Text GLabel 925 6550 0 60 Input ~ 0 VA5 Text GLabel 925 6650 0 60 Input ~ 0 VA6 Text GLabel 925 6750 0 60 Input ~ 0 VA7 Text GLabel 925 7250 0 60 Input ~ 0 VA12 Text GLabel 925 7150 0 60 Input ~ 0 VA11 Text GLabel 925 7050 0 60 Input ~ 0 VA10 Text GLabel 925 6950 0 60 Input ~ 0 VA9 Text GLabel 925 6850 0 60 Input ~ 0 VA8 Text GLabel 7500 6350 0 60 Output ~ 0 VA14 Text GLabel 7500 6450 0 60 Output ~ 0 VA13 Text GLabel 925 7450 0 60 Input ~ 0 VA14 Text GLabel 925 7350 0 60 Input ~ 0 VA13 Wire Wire Line 925 7450 1075 7450 Wire Wire Line 925 7350 1075 7350 Wire Wire Line 925 7250 1075 7250 Wire Wire Line 925 7150 1075 7150 Wire Wire Line 925 7050 1075 7050 Wire Wire Line 925 6950 1075 6950 Wire Wire Line 925 6850 1075 6850 Wire Wire Line 925 6750 1075 6750 Wire Wire Line 925 6650 1075 6650 Wire Wire Line 925 6550 1075 6550 Wire Wire Line 925 6450 1075 6450 Wire Wire Line 925 6350 1075 6350 Wire Wire Line 925 6250 1075 6250 Wire Wire Line 925 6150 1075 6150 Wire Wire Line 925 6050 1075 6050 Text GLabel 2225 6750 2 60 BiDi ~ 0 VD7 Text GLabel 2225 6650 2 60 BiDi ~ 0 VD6 Text GLabel 2225 6550 2 60 BiDi ~ 0 VD5 Text GLabel 2225 6450 2 60 BiDi ~ 0 VD4 Text GLabel 2225 6350 2 60 BiDi ~ 0 VD3 Text GLabel 2225 6250 2 60 BiDi ~ 0 VD2 Text GLabel 2225 6150 2 60 BiDi ~ 0 VD1 Text GLabel 2225 6050 2 60 BiDi ~ 0 VD0 Wire Wire Line 2075 6650 2225 6650 Wire Wire Line 2075 6750 2225 6750 Wire Wire Line 2075 6550 2225 6550 Wire Wire Line 2075 6450 2225 6450 Wire Wire Line 2075 6350 2225 6350 Wire Wire Line 2075 6250 2225 6250 Wire Wire Line 2075 6150 2225 6150 Wire Wire Line 2075 6050 2225 6050 Text GLabel 6775 1850 2 60 Input ~ 0 VD7 Text GLabel 6400 1750 2 60 Input ~ 0 VD6 Text GLabel 6400 1650 2 60 Input ~ 0 VD5 Text GLabel 6400 1550 2 60 Input ~ 0 VD4 Text GLabel 6400 1450 2 60 Input ~ 0 VD3 Text GLabel 6400 1350 2 60 Input ~ 0 VD2 Text GLabel 6400 1250 2 60 Input ~ 0 VD1 Text GLabel 6400 1150 2 60 Input ~ 0 VD0 Wire Wire Line 6250 1750 6400 1750 Wire Wire Line 6250 1850 6775 1850 Wire Wire Line 6250 1650 6400 1650 Wire Wire Line 6250 1550 6400 1550 Wire Wire Line 6250 1450 6400 1450 Wire Wire Line 6250 1350 6400 1350 Wire Wire Line 6250 1250 6400 1250 Wire Wire Line 6250 1150 6400 1150 Text GLabel 4400 2650 0 60 Input ~ 0 VDU_CLK Wire Wire Line 4400 2650 4950 2650 Wire Wire Line 4800 1750 4950 1750 Wire Wire Line 4800 1850 4950 1850 Wire Wire Line 4800 1650 4950 1650 Wire Wire Line 4800 1550 4950 1550 Wire Wire Line 4800 1450 4950 1450 Wire Wire Line 4800 1350 4950 1350 Wire Wire Line 4800 1250 4950 1250 Wire Wire Line 4800 1150 4950 1150 Wire Wire Line 4800 2250 4950 2250 Wire Wire Line 4800 2350 4950 2350 Wire Wire Line 4800 2150 4950 2150 Wire Wire Line 4800 2050 4950 2050 Wire Wire Line 4800 1950 4950 1950 NoConn ~ 6250 3050 NoConn ~ 6250 2950 Wire Wire Line 7500 6350 7650 6350 Wire Wire Line 7500 6450 7650 6450 $Comp L GND #PWR08 U 1 1 5C0636E6 P 5600 3400 F 0 "#PWR08" H 5600 3150 50 0001 C CNN F 1 "GND" H 5600 3250 50 0000 C CNN F 2 "" H 5600 3400 50 0001 C CNN F 3 "" H 5600 3400 50 0001 C CNN 1 5600 3400 1 0 0 -1 $EndComp Wire Wire Line 6250 2250 6625 2250 Wire Wire Line 6700 1850 6700 2750 Wire Wire Line 6700 2750 6250 2750 Connection ~ 6700 1850 Text GLabel 6250 2050 2 60 Input ~ 0 G/~A Text GLabel 7500 6250 0 60 Output ~ 0 G/~A Text GLabel 6250 2150 2 60 Input ~ 0 S/~A Text GLabel 7500 6150 0 60 Output ~ 0 S/~A Text GLabel 6250 2350 2 60 Input ~ 0 GM2 Text GLabel 6250 2450 2 60 Input ~ 0 GM1 Text GLabel 6250 2550 2 60 Input ~ 0 GM0 Text GLabel 6250 2650 2 60 Input ~ 0 CSS Text GLabel 7500 5750 0 60 Output ~ 0 CSS Text GLabel 7500 5850 0 60 Output ~ 0 GM0 Text GLabel 7500 5950 0 60 Output ~ 0 GM1 Text GLabel 7500 6050 0 60 Output ~ 0 GM2 Wire Wire Line 7500 5750 7650 5750 Wire Wire Line 7650 5850 7500 5850 Wire Wire Line 7500 5950 7650 5950 Wire Wire Line 7650 6050 7500 6050 Wire Wire Line 7500 6150 7650 6150 Wire Wire Line 7650 6250 7500 6250 $Comp L GND #PWR09 U 1 1 5C06A7C5 P 6625 2325 F 0 "#PWR09" H 6625 2075 50 0001 C CNN F 1 "GND" H 6625 2175 50 0000 C CNN F 2 "" H 6625 2325 50 0001 C CNN F 3 "" H 6625 2325 50 0001 C CNN 1 6625 2325 1 0 0 -1 $EndComp Wire Wire Line 6625 2250 6625 2325 $Comp L VCC #PWR010 U 1 1 5C06AFB8 P 5600 750 F 0 "#PWR010" H 5600 600 50 0001 C CNN F 1 "VCC" H 5600 900 50 0000 C CNN F 2 "" H 5600 750 50 0001 C CNN F 3 "" H 5600 750 50 0001 C CNN 1 5600 750 1 0 0 -1 $EndComp Text GLabel 4800 2450 0 60 Input ~ 0 ~VDU_DISABLE Wire Wire Line 4800 2450 4950 2450 Text GLabel 3575 925 2 60 Output ~ 0 ~VDU_DISABLE Text Notes 3275 1225 0 60 ~ 0 Disable VDU when\naccessed externally Wire Wire Line 3300 925 3150 925 Wire Wire Line 3150 925 3150 725 Connection ~ 3150 725 $Comp L Jumper_NC_Small JP1 U 1 1 5C086A5B P 3400 925 F 0 "JP1" H 3400 1005 50 0000 C CNN F 1 "VDU_EN" H 3410 865 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 3400 925 50 0001 C CNN F 3 "" H 3400 925 50 0001 C CNN 1 3400 925 1 0 0 -1 $EndComp Wire Wire Line 3500 925 3575 925 Text GLabel 9200 1850 2 60 Input ~ 0 ~CS_RAM_EXT Wire Wire Line 9050 1850 9200 1850 Wire Wire Line 9125 1850 9125 1950 Wire Wire Line 9125 1950 9050 1950 Connection ~ 9125 1850 Text GLabel 9200 3025 2 60 Input ~ 0 ~CS_RAM_EXT Wire Wire Line 9050 3025 9200 3025 Wire Wire Line 9125 3025 9125 3125 Wire Wire Line 9125 3125 9050 3125 Connection ~ 9125 3025 Text GLabel 7650 5250 0 60 Input ~ 0 ~CS_RAM_EXT Text GLabel 2375 7000 2 60 Input ~ 0 RAM_RW Wire Wire Line 2075 6900 2225 6900 Wire Wire Line 2375 7000 2075 7000 Wire Wire Line 2075 7150 2225 7150 Wire Wire Line 2225 6900 2225 7225 NoConn ~ 10400 4350 Wire Wire Line 9800 5450 9800 5525 $Comp L C C9 U 1 1 5C0C5965 P 6075 7175 F 0 "C9" H 6100 7275 50 0000 L CNN F 1 "100nF" H 6100 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6113 7025 50 0001 C CNN F 3 "" H 6075 7175 50 0001 C CNN 1 6075 7175 1 0 0 -1 $EndComp $Comp L C C10 U 1 1 5C0C59F4 P 6350 7175 F 0 "C10" H 6375 7275 50 0000 L CNN F 1 "100nF" H 6375 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6388 7025 50 0001 C CNN F 3 "" H 6350 7175 50 0001 C CNN 1 6350 7175 1 0 0 -1 $EndComp Wire Wire Line 6350 7325 6350 7375 Connection ~ 6350 7375 Wire Wire Line 6350 6975 6350 7025 Connection ~ 6350 6975 Wire Wire Line 6075 6975 6075 7025 Connection ~ 6075 6975 Wire Wire Line 6075 7325 6075 7375 Connection ~ 6075 7375 NoConn ~ 7650 2150 $Comp L Jumper_NO_Small JP3 U 1 1 5C0D03FF P 9475 4325 F 0 "JP3" H 9475 4405 50 0000 C CNN F 1 "INT_ON_FS" H 9485 4265 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 9475 4325 50 0001 C CNN F 3 "" H 9475 4325 50 0001 C CNN 1 9475 4325 0 1 1 0 $EndComp Wire Wire Line 9475 4425 9675 4425 Wire Wire Line 9675 4425 9675 4550 Text GLabel 4800 2550 0 60 Output ~ 0 ~FS Wire Wire Line 4800 2550 4950 2550 $Comp L Conn_01x07 J3 U 1 1 5C0D33B4 P 4575 3325 F 0 "J3" H 4575 2925 50 0000 C CNN F 1 "VIDEO" V 4675 3325 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x07_Pitch2.54mm" H 4575 3325 50 0001 C CNN F 3 "" H 4575 3325 50 0001 C CNN 1 4575 3325 0 1 1 0 $EndComp Wire Wire Line 4950 3050 4875 3050 Wire Wire Line 4875 3050 4875 3125 Wire Wire Line 4775 3125 4775 2950 Wire Wire Line 4775 2950 4950 2950 Wire Wire Line 4675 3125 4675 2850 Wire Wire Line 4675 2850 4950 2850 Wire Wire Line 4575 3125 4575 2750 Wire Wire Line 4400 2750 4950 2750 Wire Wire Line 4475 3125 4475 2650 Connection ~ 4475 2650 Connection ~ 4575 2750 Text GLabel 4400 2750 0 60 Output ~ 0 Y Text GLabel 625 2275 0 60 Input ~ 0 Y $Comp L RCA_PLUG J8 U 1 1 5C0DE558 P 1975 2275 F 0 "J8" H 1985 2395 50 0000 C CNN F 1 "RCA_PLUG" V 2090 2275 50 0000 C CNN F 2 "rca:rca_yellow" H 1975 2275 50 0001 C CNN F 3 "" H 1975 2275 50 0001 C CNN 1 1975 2275 1 0 0 -1 $EndComp Text Notes 7025 6875 0 60 ~ 0 Display adapter based on the Motorola 6847 Video Display Generator (VDG), this maps\ninto the memory space and does not follow the designs of the Apple 1 computer,\ninstead it is only intended for use with the RC6502 computer. Wire Wire Line 9825 4050 10400 4050 $Comp L GND #PWR011 U 1 1 5C0ECDB6 P 2225 7225 F 0 "#PWR011" H 2225 6975 50 0001 C CNN F 1 "GND" H 2225 7075 50 0000 C CNN F 2 "" H 2225 7225 50 0001 C CNN F 3 "" H 2225 7225 50 0001 C CNN 1 2225 7225 1 0 0 -1 $EndComp Connection ~ 2225 7150 Wire Wire Line 9825 4050 9825 4225 $Comp L GND #PWR012 U 1 1 5C0EE352 P 9825 4225 F 0 "#PWR012" H 9825 3975 50 0001 C CNN F 1 "GND" H 9825 4075 50 0000 C CNN F 2 "" H 9825 4225 50 0001 C CNN F 3 "" H 9825 4225 50 0001 C CNN 1 9825 4225 1 0 0 -1 $EndComp $Comp L GND #PWR013 U 1 1 5C0F12D5 P 3975 3125 F 0 "#PWR013" H 3975 2875 50 0001 C CNN F 1 "GND" H 3975 2975 50 0000 C CNN F 2 "" H 3975 3125 50 0001 C CNN F 3 "" H 3975 3125 50 0001 C CNN 1 3975 3125 1 0 0 -1 $EndComp Wire Wire Line 3975 3125 3975 2975 Wire Wire Line 3975 2975 4375 2975 Wire Wire Line 4375 2975 4375 3125 $Comp L VCC #PWR014 U 1 1 5C0F1740 P 4150 2900 F 0 "#PWR014" H 4150 2750 50 0001 C CNN F 1 "VCC" H 4150 3050 50 0000 C CNN F 2 "" H 4150 2900 50 0001 C CNN F 3 "" H 4150 2900 50 0001 C CNN 1 4150 2900 1 0 0 -1 $EndComp Wire Wire Line 4150 2900 4150 3050 Wire Wire Line 4150 3050 4275 3050 Wire Wire Line 4275 3050 4275 3125 $Comp L VDU_Port U11 U 1 1 5C12C79F P 1200 2525 F 0 "U11" H 1200 2625 60 0000 C CNN F 1 "VDU_Port" H 1475 2075 60 0000 C CNN F 2 "vdu_amplifier:Amplifier" H 1200 2525 60 0001 C CNN F 3 "" H 1200 2525 60 0001 C CNN 1 1200 2525 1 0 0 -1 $EndComp Wire Wire Line 700 2275 625 2275 Wire Wire Line 1200 1825 1200 1750 Wire Wire Line 1200 3025 1200 3100 $Comp L GND #PWR015 U 1 1 5C12D4FF P 1200 3100 F 0 "#PWR015" H 1200 2850 50 0001 C CNN F 1 "GND" H 1200 2950 50 0000 C CNN F 2 "" H 1200 3100 50 0001 C CNN F 3 "" H 1200 3100 50 0001 C CNN 1 1200 3100 1 0 0 -1 $EndComp $Comp L VCC #PWR016 U 1 1 5C12D772 P 1200 1750 F 0 "#PWR016" H 1200 1600 50 0001 C CNN F 1 "VCC" H 1200 1900 50 0000 C CNN F 2 "" H 1200 1750 50 0001 C CNN F 3 "" H 1200 1750 50 0001 C CNN 1 1200 1750 1 0 0 -1 $EndComp Wire Wire Line 1825 2275 1750 2275 $Comp L GND #PWR017 U 1 1 5C12DD7B P 1975 2550 F 0 "#PWR017" H 1975 2300 50 0001 C CNN F 1 "GND" H 1975 2400 50 0000 C CNN F 2 "" H 1975 2550 50 0001 C CNN F 3 "" H 1975 2550 50 0001 C CNN 1 1975 2550 1 0 0 -1 $EndComp Wire Wire Line 1975 2475 1975 2550 NoConn ~ 700 2575 NoConn ~ 1750 2575 NoConn ~ 7650 2250 NoConn ~ 7650 2350 Text GLabel 7650 1675 0 60 Output ~ 0 VA11 Text GLabel 7650 1575 0 60 Output ~ 0 VA12 NoConn ~ 7650 2450 NoConn ~ 7650 2550 Wire Wire Line 9475 4150 9475 4225 $Comp L 74LS374 U12 U 1 1 5C1B63E4 P 8350 1175 F 0 "U12" H 8350 1075 50 0000 C CNN F 1 "74LS374" H 8350 1275 50 0000 C CNN F 2 "Housings_DIP:DIP-20_W7.62mm" H 8350 1175 50 0001 C CNN F 3 "" H 8350 1175 50 0001 C CNN 1 8350 1175 -1 0 0 1 $EndComp Text GLabel 9050 675 2 60 Input ~ 0 ~CS_RAM_EXT NoConn ~ 7650 1475 NoConn ~ 7650 1375 NoConn ~ 7650 1275 NoConn ~ 7650 1175 NoConn ~ 7650 1075 NoConn ~ 7650 975 $Comp L GND #PWR018 U 1 1 5C1BAEA6 P 9400 1525 F 0 "#PWR018" H 9400 1275 50 0001 C CNN F 1 "GND" H 9400 1375 50 0000 C CNN F 2 "" H 9400 1525 50 0001 C CNN F 3 "" H 9400 1525 50 0001 C CNN 1 9400 1525 1 0 0 -1 $EndComp Wire Wire Line 9050 975 9400 975 Wire Wire Line 9400 975 9400 1525 Wire Wire Line 9050 1475 9400 1475 Connection ~ 9400 1475 Wire Wire Line 9050 1375 9400 1375 Connection ~ 9400 1375 Wire Wire Line 9050 1275 9400 1275 Connection ~ 9400 1275 Wire Wire Line 9050 1175 9400 1175 Connection ~ 9400 1175 Wire Wire Line 9050 1075 9400 1075 Connection ~ 9400 1075 $Comp L GND #PWR019 U 1 1 5C1BBA43 P 9400 2700 F 0 "#PWR019" H 9400 2450 50 0001 C CNN F 1 "GND" H 9400 2550 50 0000 C CNN F 2 "" H 9400 2700 50 0001 C CNN F 3 "" H 9400 2700 50 0001 C CNN 1 9400 2700 1 0 0 -1 $EndComp Wire Wire Line 9050 2150 9400 2150 Wire Wire Line 9400 2150 9400 2700 Wire Wire Line 9400 2550 9050 2550 Connection ~ 9400 2550 Wire Wire Line 9050 2450 9400 2450 Connection ~ 9400 2450 Wire Wire Line 9050 2350 9400 2350 Connection ~ 9400 2350 Wire Wire Line 9050 2250 9400 2250 Connection ~ 9400 2250 Wire Wire Line 6625 6900 6625 7025 Wire Wire Line 6625 7325 6625 7450 Connection ~ 6625 7375 Connection ~ 6625 6975 $Comp L 74LS138 U9 U 1 1 5C1CA4AB P 1650 4000 F 0 "U9" H 1650 4500 50 0000 C CNN F 1 "74HCT138" V 1650 4000 50 0000 C CNN F 2 "Housings_DIP:DIP-16_W7.62mm_Socket" H 1650 4000 50 0001 C CNN F 3 "" H 1650 4000 50 0001 C CNN 1 1650 4000 1 0 0 -1 $EndComp Text GLabel 1050 4250 0 60 Input ~ 0 VDU_BASE Text GLabel 1050 4150 0 60 Input ~ 0 PHI2 Wire Wire Line 1050 4350 750 4350 $Comp L GND #PWR020 U 1 1 5C1CC87B P 750 4425 F 0 "#PWR020" H 750 4175 50 0001 C CNN F 1 "GND" H 750 4275 50 0000 C CNN F 2 "" H 750 4425 50 0001 C CNN F 3 "" H 750 4425 50 0001 C CNN 1 750 4425 1 0 0 -1 $EndComp Wire Wire Line 750 4350 750 4425 Text GLabel 1050 3850 0 60 Input ~ 0 R/~W Text GLabel 1050 3750 0 60 Input ~ 0 A11 Text GLabel 1050 3650 0 60 Input ~ 0 A10 $Comp L 74LS02 U10 U 1 1 5C276516 P 3300 3750 F 0 "U10" H 3300 3800 50 0000 C CNN F 1 "74LS02" H 3350 3700 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 3300 3750 50 0001 C CNN F 3 "" H 3300 3750 50 0001 C CNN 1 3300 3750 1 0 0 -1 $EndComp $Comp L 74LS02 U10 U 2 1 5C2767ED P 3300 4250 F 0 "U10" H 3300 4300 50 0000 C CNN F 1 "74LS02" H 3350 4200 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 3300 4250 50 0001 C CNN F 3 "" H 3300 4250 50 0001 C CNN 2 3300 4250 1 0 0 -1 $EndComp Wire Wire Line 2700 3650 2250 3650 Wire Wire Line 2250 3750 2625 3750 Wire Wire Line 2625 3750 2625 3850 Wire Wire Line 2625 3850 2700 3850 Wire Wire Line 2250 4050 2625 4050 Wire Wire Line 2625 4050 2625 4150 Wire Wire Line 2625 4150 2700 4150 Wire Wire Line 2250 4150 2550 4150 Wire Wire Line 2550 4150 2550 4350 Wire Wire Line 2550 4350 2700 4350 $Comp L 74LS02 U10 U 3 1 5C277F93 P 4650 4000 F 0 "U10" H 4650 4050 50 0000 C CNN F 1 "74LS02" H 4700 3950 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 4650 4000 50 0001 C CNN F 3 "" H 4650 4000 50 0001 C CNN 3 4650 4000 1 0 0 -1 $EndComp Wire Wire Line 3900 4250 3975 4250 Wire Wire Line 3975 4250 3975 4100 Wire Wire Line 3975 4100 4050 4100 Wire Wire Line 4050 3900 3975 3900 Wire Wire Line 3975 3900 3975 3750 Wire Wire Line 3975 3750 3900 3750 NoConn ~ 2250 4250 NoConn ~ 2250 4350 Text GLabel 5400 4000 2 60 Output ~ 0 ~CS_RAM_EXT Wire Wire Line 5250 4000 5400 4000 Text GLabel 2250 3850 2 60 Output ~ 0 ~REG0 Text GLabel 2250 3950 2 60 Output ~ 0 ~REG1 Text GLabel 9050 5550 2 60 Input ~ 0 ~REG0 Text GLabel 9050 775 2 60 Input ~ 0 ~REG1 Text GLabel 7650 5150 0 60 Input ~ 0 R/~W $Comp L 74LS02 U10 U 4 1 5C2945AC P 6275 5925 F 0 "U10" H 6275 5975 50 0000 C CNN F 1 "74LS02" H 6325 5875 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 6275 5925 50 0001 C CNN F 3 "" H 6275 5925 50 0001 C CNN 4 6275 5925 0 -1 -1 0 $EndComp NoConn ~ 6275 5325 $Comp L GND #PWR021 U 1 1 5C2969D3 P 6375 6675 F 0 "#PWR021" H 6375 6425 50 0001 C CNN F 1 "GND" H 6375 6525 50 0000 C CNN F 2 "" H 6375 6675 50 0001 C CNN F 3 "" H 6375 6675 50 0001 C CNN 1 6375 6675 1 0 0 -1 $EndComp Wire Wire Line 4750 6600 6375 6600 Wire Wire Line 6175 6600 6175 6525 Wire Wire Line 6375 6525 6375 6675 Connection ~ 6375 6600 $Comp L 74LS32 U8 U 4 1 5C2998AF P 6000 4350 F 0 "U8" H 6000 4400 50 0000 C CNN F 1 "74LS32" H 6000 4300 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 6000 4350 50 0001 C CNN F 3 "" H 6000 4350 50 0001 C CNN 4 6000 4350 1 0 0 -1 $EndComp Wire Wire Line 5325 4000 5325 4250 Wire Wire Line 5325 4250 5400 4250 Connection ~ 5325 4000 Wire Wire Line 5400 4450 5325 4450 Text GLabel 5325 4450 0 60 Input ~ 0 R/~W Text GLabel 6675 4350 2 60 Output ~ 0 RAM_RW Wire Wire Line 6675 4350 6600 4350 $Comp L 74LS32 U8 U 1 1 5C29BA58 P 4850 5925 F 0 "U8" H 4850 5975 50 0000 C CNN F 1 "74LS32" H 4850 5875 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 4850 5925 50 0001 C CNN F 3 "" H 4850 5925 50 0001 C CNN 1 4850 5925 0 -1 -1 0 $EndComp $Comp L 74LS32 U8 U 2 1 5C29BAE5 P 5325 5925 F 0 "U8" H 5325 5975 50 0000 C CNN F 1 "74LS32" H 5325 5875 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 5325 5925 50 0001 C CNN F 3 "" H 5325 5925 50 0001 C CNN 2 5325 5925 0 -1 -1 0 $EndComp $Comp L 74LS32 U8 U 3 1 5C29BB71 P 5800 5925 F 0 "U8" H 5800 5975 50 0000 C CNN F 1 "74LS32" H 5800 5875 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket" H 5800 5925 50 0001 C CNN F 3 "" H 5800 5925 50 0001 C CNN 3 5800 5925 0 -1 -1 0 $EndComp Wire Wire Line 4750 6600 4750 6525 Connection ~ 6175 6600 Wire Wire Line 4950 6525 4950 6600 Connection ~ 4950 6600 Wire Wire Line 5225 6525 5225 6600 Connection ~ 5225 6600 Wire Wire Line 5425 6525 5425 6600 Connection ~ 5425 6600 Wire Wire Line 5700 6525 5700 6600 Connection ~ 5700 6600 Wire Wire Line 5900 6525 5900 6600 Connection ~ 5900 6600 NoConn ~ 5800 5325 NoConn ~ 5325 5325 NoConn ~ 4850 5325 $Comp L C C12 U 1 1 5C1BE4C6 P 6625 7175 F 0 "C12" H 6650 7275 50 0000 L CNN F 1 "100nF" H 6650 7075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6663 7025 50 0001 C CNN F 3 "" H 6625 7175 50 0001 C CNN 1 6625 7175 1 0 0 -1 $EndComp Wire Wire Line 2100 1225 2400 1225 Wire Wire Line 2100 1325 2400 1325 Text Notes 2125 1225 0 60 ~ 0 $D000 Text Notes 2125 1325 0 60 ~ 0 $E000 Wire Wire Line 2975 1225 2900 1225 Connection ~ 2975 1125 Wire Wire Line 2975 1325 2900 1325 Connection ~ 2975 1225 Wire Wire Line 3000 2475 3150 2475 NoConn ~ 10400 4450 $EndSCHEMATC