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:mc6821 LIBS:atmega328_mcu LIBS:rca_plug LIBS:link_power LIBS:ps2_connector LIBS:RC6502 Terminal-cache EELAYER 25 0 EELAYER END $Descr A3 16535 11693 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L RC6502_Backplane J1 U 1 1 5E248C66 P 14975 6400 F 0 "J1" H 14975 8400 50 0000 C CNN F 1 "RC6502_Backplane" V 15425 6350 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x39_Pitch2.54mm" H 14975 6400 50 0001 C CNN F 3 "" H 14975 6400 50 0001 C CNN 1 14975 6400 1 0 0 1 $EndComp Text Label 14475 6400 0 60 ~ 0 ~RESET Text Label 14475 6500 0 60 ~ 0 PHI2 Text Label 14475 6000 0 60 ~ 0 R/~W $Comp L VCC #PWR01 U 1 1 5E248EA0 P 14175 6525 F 0 "#PWR01" H 14175 6375 50 0001 C CNN F 1 "VCC" H 14175 6675 50 0000 C CNN F 2 "" H 14175 6525 50 0001 C CNN F 3 "" H 14175 6525 50 0001 C CNN 1 14175 6525 1 0 0 -1 $EndComp $Comp L GND #PWR02 U 1 1 5E248ECA P 14175 6775 F 0 "#PWR02" H 14175 6525 50 0001 C CNN F 1 "GND" H 14175 6625 50 0000 C CNN F 2 "" H 14175 6775 50 0001 C CNN F 3 "" H 14175 6775 50 0001 C CNN 1 14175 6775 1 0 0 -1 $EndComp Entry Wire Line 14350 5900 14450 6000 Entry Wire Line 14350 6400 14450 6500 Entry Wire Line 14350 6300 14450 6400 Text Label 14475 5700 0 60 ~ 0 D0 Text Label 14475 5600 0 60 ~ 0 D1 Text Label 14475 5500 0 60 ~ 0 D2 Text Label 14475 5400 0 60 ~ 0 D3 Text Label 14475 5300 0 60 ~ 0 D4 Text Label 14475 5200 0 60 ~ 0 D5 Text Label 14475 5100 0 60 ~ 0 D6 Text Label 14475 5000 0 60 ~ 0 D7 $Comp L MC6821 U1 U 1 1 5E249286 P 12200 6675 F 0 "U1" H 12200 6775 50 0000 C CNN F 1 "MC6821" H 12200 6575 50 0000 C CNN F 2 "Housings_DIP:DIP-40_W15.24mm_Socket_LongPads" H 12200 6675 50 0001 C CNN F 3 "" H 12200 6675 50 0001 C CNN 1 12200 6675 -1 0 0 -1 $EndComp Entry Wire Line 14350 4900 14450 5000 Entry Wire Line 14350 5000 14450 5100 Entry Wire Line 14350 5100 14450 5200 Entry Wire Line 14350 5200 14450 5300 Entry Wire Line 14350 5300 14450 5400 Entry Wire Line 14350 5400 14450 5500 Entry Wire Line 14350 5500 14450 5600 Entry Wire Line 14350 5600 14450 5700 Text Label 13150 6825 2 60 ~ 0 D0 Text Label 13150 6925 2 60 ~ 0 D1 Text Label 13150 7025 2 60 ~ 0 D2 Text Label 13150 7125 2 60 ~ 0 D3 Text Label 13150 7225 2 60 ~ 0 D4 Text Label 13150 7325 2 60 ~ 0 D5 Text Label 13150 7425 2 60 ~ 0 D6 Text Label 13150 7525 2 60 ~ 0 D7 Entry Wire Line 13275 7625 13175 7525 Entry Wire Line 13275 7525 13175 7425 Entry Wire Line 13275 7425 13175 7325 Entry Wire Line 13275 7325 13175 7225 Entry Wire Line 13275 7225 13175 7125 Entry Wire Line 13275 7125 13175 7025 Entry Wire Line 13275 7025 13175 6925 Entry Wire Line 13275 6925 13175 6825 Entry Wire Line 13275 6325 13175 6225 Entry Wire Line 13275 6225 13175 6125 Entry Wire Line 13275 6125 13175 6025 Entry Wire Line 13275 6025 13175 5925 Entry Wire Line 13275 5925 13175 5825 Text Label 13150 6125 2 60 ~ 0 R/~W Text Label 13150 6025 2 60 ~ 0 PHI2 Text Label 13150 6225 2 60 ~ 0 ~RESET $Comp L VCC #PWR03 U 1 1 5E249690 P 12200 5325 F 0 "#PWR03" H 12200 5175 50 0001 C CNN F 1 "VCC" H 12200 5475 50 0000 C CNN F 2 "" H 12200 5325 50 0001 C CNN F 3 "" H 12200 5325 50 0001 C CNN 1 12200 5325 1 0 0 -1 $EndComp Text Label 14475 6800 0 60 ~ 0 A0 Text Label 14475 6900 0 60 ~ 0 A1 Text Label 14475 7200 0 60 ~ 0 A4 Text Label 14475 8000 0 60 ~ 0 A12 Text Label 14475 8100 0 60 ~ 0 A13 Text Label 14475 8200 0 60 ~ 0 A14 Text Label 14475 8300 0 60 ~ 0 A15 Entry Wire Line 14350 6900 14450 6800 Entry Wire Line 14350 7000 14450 6900 Entry Wire Line 14350 8100 14450 8000 Entry Wire Line 14350 8200 14450 8100 Entry Wire Line 14350 8300 14450 8200 Entry Wire Line 14350 8400 14450 8300 Entry Wire Line 14350 7300 14450 7200 Text Label 13150 5825 2 60 ~ 0 A0 Text Label 13150 5925 2 60 ~ 0 A1 $Comp L GND #PWR04 U 1 1 5E249CED P 12200 8200 F 0 "#PWR04" H 12200 7950 50 0001 C CNN F 1 "GND" H 12200 8050 50 0000 C CNN F 2 "" H 12200 8200 50 0001 C CNN F 3 "" H 12200 8200 50 0001 C CNN 1 12200 8200 1 0 0 -1 $EndComp NoConn ~ 12850 6425 NoConn ~ 12850 6525 $Comp L 74LS138 U2 U 1 1 5E249EB5 P 12200 4500 F 0 "U2" H 12300 5000 50 0000 C CNN F 1 "74LS138" H 12200 4000 50 0000 C CNN F 2 "Housings_DIP:DIP-16_W7.62mm_Socket_LongPads" H 12200 4500 50 0001 C CNN F 3 "" H 12200 4500 50 0001 C CNN 1 12200 4500 1 0 0 -1 $EndComp Text Label 11300 4150 0 60 ~ 0 A12 Text Label 11300 4250 0 60 ~ 0 A13 Text Label 11300 4350 0 60 ~ 0 A14 Text Label 11300 4650 0 60 ~ 0 A15 Entry Wire Line 11175 4250 11275 4150 Entry Wire Line 11175 4350 11275 4250 Entry Wire Line 11175 4450 11275 4350 Entry Wire Line 11175 4750 11275 4650 $Comp L GND #PWR05 U 1 1 5E24A03F P 11525 4925 F 0 "#PWR05" H 11525 4675 50 0001 C CNN F 1 "GND" H 11525 4775 50 0000 C CNN F 2 "" H 11525 4925 50 0001 C CNN F 3 "" H 11525 4925 50 0001 C CNN 1 11525 4925 1 0 0 -1 $EndComp $Comp L VCC #PWR06 U 1 1 5E25A167 P 13050 5525 F 0 "#PWR06" H 13050 5375 50 0001 C CNN F 1 "VCC" H 13050 5675 50 0000 C CNN F 2 "" H 13050 5525 50 0001 C CNN F 3 "" H 13050 5525 50 0001 C CNN 1 13050 5525 1 0 0 -1 $EndComp NoConn ~ 12800 4850 NoConn ~ 12800 4750 NoConn ~ 12800 4550 NoConn ~ 12800 4450 NoConn ~ 12800 4350 NoConn ~ 12800 4250 NoConn ~ 12800 4150 NoConn ~ 14775 7900 NoConn ~ 14775 7800 NoConn ~ 14775 7700 NoConn ~ 14775 7600 NoConn ~ 14775 7500 NoConn ~ 14775 7400 NoConn ~ 14775 7300 NoConn ~ 14775 7100 NoConn ~ 14775 7000 NoConn ~ 14775 6100 NoConn ~ 14775 6200 NoConn ~ 14775 5900 NoConn ~ 14775 5800 NoConn ~ 14775 4900 NoConn ~ 14775 4800 NoConn ~ 14775 4700 $Comp L Link_Power JP1 U 1 1 5E25AF74 P 2575 1400 F 0 "JP1" H 2575 1480 50 0000 C CNN F 1 "KBD_PWR" H 2585 1340 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 2575 1400 50 0001 C CNN F 3 "" H 2575 1400 50 0001 C CNN 1 2575 1400 0 -1 -1 0 $EndComp $Comp L Conn_01x06 J2 U 1 1 5E25B19C P 1200 2300 F 0 "J2" H 1200 2600 50 0000 C CNN F 1 "KBD_SER" V 1300 2300 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm" H 1200 2300 50 0001 C CNN F 3 "" H 1200 2300 50 0001 C CNN 1 1200 2300 -1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 5E25B34C P 2575 5075 F 0 "#PWR07" H 2575 4825 50 0001 C CNN F 1 "GND" H 2575 4925 50 0000 C CNN F 2 "" H 2575 5075 50 0001 C CNN F 3 "" H 2575 5075 50 0001 C CNN 1 2575 5075 1 0 0 -1 $EndComp $Comp L Crystal_Small Y1 U 1 1 5E25BD20 P 2575 3375 F 0 "Y1" H 2575 3500 50 0000 C CNN F 1 "16Mhz" H 2575 3275 50 0000 C CNN F 2 "Crystals:Crystal_HC49-4H_Vertical" H 2575 3375 50 0001 C CNN F 3 "" H 2575 3375 50 0001 C CNN 1 2575 3375 0 1 1 0 $EndComp $Comp L C_Small C6 U 1 1 5E25C0EA P 2225 3225 F 0 "C6" V 2275 3275 50 0000 L CNN F 1 "22pF" V 2100 3125 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2225 3225 50 0001 C CNN F 3 "" H 2225 3225 50 0001 C CNN 1 2225 3225 0 1 1 0 $EndComp $Comp L C_Small C10 U 1 1 5E25C2E6 P 2225 3525 F 0 "C10" V 2275 3575 50 0000 L CNN F 1 "22pF" V 2100 3450 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2225 3525 50 0001 C CNN F 3 "" H 2225 3525 50 0001 C CNN 1 2225 3525 0 1 1 0 $EndComp $Comp L GND #PWR08 U 1 1 5E25C401 P 2050 3600 F 0 "#PWR08" H 2050 3350 50 0001 C CNN F 1 "GND" H 2050 3450 50 0000 C CNN F 2 "" H 2050 3600 50 0001 C CNN F 3 "" H 2050 3600 50 0001 C CNN 1 2050 3600 1 0 0 -1 $EndComp $Comp L GND #PWR09 U 1 1 5E25CE66 P 1475 2675 F 0 "#PWR09" H 1475 2425 50 0001 C CNN F 1 "GND" H 1475 2525 50 0000 C CNN F 2 "" H 1475 2675 50 0001 C CNN F 3 "" H 1475 2675 50 0001 C CNN 1 1475 2675 1 0 0 -1 $EndComp NoConn ~ 1400 2500 $Comp L VCC #PWR010 U 1 1 5E25D24B P 2575 1225 F 0 "#PWR010" H 2575 1075 50 0001 C CNN F 1 "VCC" H 2575 1375 50 0000 C CNN F 2 "" H 2575 1225 50 0001 C CNN F 3 "" H 2575 1225 50 0001 C CNN 1 2575 1225 1 0 0 -1 $EndComp $Comp L R R1 U 1 1 5E25D3E9 P 2475 1875 F 0 "R1" V 2555 1875 50 0000 C CNN F 1 "10k" V 2475 1875 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2405 1875 50 0001 C CNN F 3 "" H 2475 1875 50 0001 C CNN 1 2475 1875 -1 0 0 1 $EndComp $Comp L C_Small C4 U 1 1 5E25D964 P 2075 2100 F 0 "C4" V 2175 2075 50 0000 L CNN F 1 "100nF" V 1950 2000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2075 2100 50 0001 C CNN F 3 "" H 2075 2100 50 0001 C CNN 1 2075 2100 0 -1 -1 0 $EndComp $Comp L C_Small C7 U 1 1 5E25F695 P 2850 1800 F 0 "C7" V 2950 1775 50 0000 L CNN F 1 "100nF" V 2725 1700 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2850 1800 50 0001 C CNN F 3 "" H 2850 1800 50 0001 C CNN 1 2850 1800 0 -1 -1 0 $EndComp $Comp L GND #PWR011 U 1 1 5E25F92F P 3025 1875 F 0 "#PWR011" H 3025 1625 50 0001 C CNN F 1 "GND" H 3025 1725 50 0000 C CNN F 2 "" H 3025 1875 50 0001 C CNN F 3 "" H 3025 1875 50 0001 C CNN 1 3025 1875 1 0 0 -1 $EndComp $Comp L SW_Push SW1 U 1 1 5E260A4C P 2025 1650 F 0 "SW1" H 2075 1750 50 0000 L CNN F 1 "KBD_RES" H 2025 1590 50 0000 C CNN F 2 "Buttons_Switches_THT:SW_PUSH_6mm" H 2025 1850 50 0001 C CNN F 3 "" H 2025 1850 50 0001 C CNN 1 2025 1650 1 0 0 -1 $EndComp $Comp L GND #PWR012 U 1 1 5E260B4B P 1750 1725 F 0 "#PWR012" H 1750 1475 50 0001 C CNN F 1 "GND" H 1750 1575 50 0000 C CNN F 2 "" H 1750 1725 50 0001 C CNN F 3 "" H 1750 1725 50 0001 C CNN 1 1750 1725 1 0 0 -1 $EndComp Entry Wire Line 11125 6825 11225 6925 Entry Wire Line 11125 6925 11225 7025 Entry Wire Line 11125 7025 11225 7125 Entry Wire Line 11125 7125 11225 7225 Entry Wire Line 11125 7225 11225 7325 Entry Wire Line 11125 7325 11225 7425 Entry Wire Line 11125 6725 11225 6825 Text Label 11250 6825 0 60 ~ 0 VID0 Text Label 11250 6925 0 60 ~ 0 VID1 Text Label 11250 7025 0 60 ~ 0 VID2 Text Label 11250 7125 0 60 ~ 0 VID3 Text Label 11250 7225 0 60 ~ 0 VID4 Text Label 11250 7325 0 60 ~ 0 VID5 Text Label 11250 7425 0 60 ~ 0 VID6 Entry Wire Line 11125 5525 11225 5625 Entry Wire Line 11125 5625 11225 5725 Entry Wire Line 11125 5725 11225 5825 Entry Wire Line 11125 5825 11225 5925 Entry Wire Line 11125 5925 11225 6025 Entry Wire Line 11125 6025 11225 6125 Entry Wire Line 11125 5425 11225 5525 Text Label 11250 5525 0 60 ~ 0 KBD0 Text Label 11250 5625 0 60 ~ 0 KBD1 Text Label 11250 5725 0 60 ~ 0 KBD2 Text Label 11250 5825 0 60 ~ 0 KBD3 Text Label 11250 5925 0 60 ~ 0 KBD4 Text Label 11250 6025 0 60 ~ 0 KBD5 Text Label 11250 6125 0 60 ~ 0 KBD6 $Comp L VCC #PWR013 U 1 1 5E26719B P 11000 6150 F 0 "#PWR013" H 11000 6000 50 0001 C CNN F 1 "VCC" H 11000 6300 50 0000 C CNN F 2 "" H 11000 6150 50 0001 C CNN F 3 "" H 11000 6150 50 0001 C CNN 1 11000 6150 1 0 0 -1 $EndComp NoConn ~ 11550 6525 Text GLabel 11475 7725 0 60 Input ~ 0 RDA $Comp L 74LS00 U3 U 1 1 5E268866 P 10425 7825 F 0 "U3" H 10425 7875 50 0000 C CNN F 1 "74LS00" H 10425 7725 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket_LongPads" H 10425 7825 50 0001 C CNN F 3 "" H 10425 7825 50 0001 C CNN 1 10425 7825 -1 0 0 1 $EndComp Text GLabel 9400 7525 0 60 Output ~ 0 DA $Comp L C_Small C9 U 1 1 5E26983F P 9650 7825 F 0 "C9" V 9750 7800 50 0000 L CNN F 1 "10nF" V 9525 7725 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 9650 7825 50 0001 C CNN F 3 "" H 9650 7825 50 0001 C CNN 1 9650 7825 0 -1 -1 0 $EndComp Text GLabel 11475 6425 0 60 Input ~ 0 STROBE $Comp L Conn_02x03_Odd_Even J4 U 1 1 5E26FA0A P 4975 2000 F 0 "J4" H 5025 2200 50 0000 C CNN F 1 "KBD_ICSP" H 5025 1800 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm" H 4975 2000 50 0001 C CNN F 3 "" H 4975 2000 50 0001 C CNN 1 4975 2000 1 0 0 -1 $EndComp $Comp L GND #PWR014 U 1 1 5E27010B P 5350 2175 F 0 "#PWR014" H 5350 1925 50 0001 C CNN F 1 "GND" H 5350 2025 50 0000 C CNN F 2 "" H 5350 2175 50 0001 C CNN F 3 "" H 5350 2175 50 0001 C CNN 1 5350 2175 1 0 0 -1 $EndComp NoConn ~ 4550 2675 NoConn ~ 4550 4675 $Comp L Link_Power JP2 U 1 1 5E27D879 P 2575 6350 F 0 "JP2" H 2575 6430 50 0000 C CNN F 1 "VID_PWR" H 2585 6290 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm" H 2575 6350 50 0001 C CNN F 3 "" H 2575 6350 50 0001 C CNN 1 2575 6350 0 -1 -1 0 $EndComp $Comp L Conn_01x06 J3 U 1 1 5E27D87F P 1250 7250 F 0 "J3" H 1250 7550 50 0000 C CNN F 1 "VID_SER" V 1350 7250 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm" H 1250 7250 50 0001 C CNN F 3 "" H 1250 7250 50 0001 C CNN 1 1250 7250 -1 0 0 -1 $EndComp $Comp L GND #PWR015 U 1 1 5E27D889 P 2575 10025 F 0 "#PWR015" H 2575 9775 50 0001 C CNN F 1 "GND" H 2575 9875 50 0000 C CNN F 2 "" H 2575 10025 50 0001 C CNN F 3 "" H 2575 10025 50 0001 C CNN 1 2575 10025 1 0 0 -1 $EndComp $Comp L ATMEGA328_MCU U5 U 1 1 5E27D88F P 3550 8725 F 0 "U5" H 2800 9975 50 0000 L BNN F 1 "ATMEGA328_MCU" H 3950 7325 50 0000 L BNN F 2 "Housings_DIP:DIP-28_W7.62mm_Socket" H 3550 8725 50 0001 C CIN F 3 "" H 3550 8725 50 0001 C CNN 1 3550 8725 1 0 0 -1 $EndComp $Comp L Crystal_Small Y2 U 1 1 5E27D895 P 2575 8325 F 0 "Y2" H 2575 8450 50 0000 C CNN F 1 "16Mhz" H 2575 8225 50 0000 C CNN F 2 "Crystals:Crystal_HC49-4H_Vertical" H 2575 8325 50 0001 C CNN F 3 "" H 2575 8325 50 0001 C CNN 1 2575 8325 0 1 1 0 $EndComp $Comp L C_Small C11 U 1 1 5E27D89B P 2225 8175 F 0 "C11" V 2275 8225 50 0000 L CNN F 1 "22pF" V 2100 8075 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2225 8175 50 0001 C CNN F 3 "" H 2225 8175 50 0001 C CNN 1 2225 8175 0 1 1 0 $EndComp $Comp L C_Small C12 U 1 1 5E27D8A5 P 2225 8475 F 0 "C12" V 2275 8525 50 0000 L CNN F 1 "22pF" V 2100 8400 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2225 8475 50 0001 C CNN F 3 "" H 2225 8475 50 0001 C CNN 1 2225 8475 0 1 1 0 $EndComp $Comp L GND #PWR016 U 1 1 5E27D8AD P 2050 8550 F 0 "#PWR016" H 2050 8300 50 0001 C CNN F 1 "GND" H 2050 8400 50 0000 C CNN F 2 "" H 2050 8550 50 0001 C CNN F 3 "" H 2050 8550 50 0001 C CNN 1 2050 8550 1 0 0 -1 $EndComp $Comp L GND #PWR017 U 1 1 5E27D8B7 P 1525 7625 F 0 "#PWR017" H 1525 7375 50 0001 C CNN F 1 "GND" H 1525 7475 50 0000 C CNN F 2 "" H 1525 7625 50 0001 C CNN F 3 "" H 1525 7625 50 0001 C CNN 1 1525 7625 1 0 0 -1 $EndComp NoConn ~ 1450 7450 $Comp L VCC #PWR018 U 1 1 5E27D8BE P 2575 6175 F 0 "#PWR018" H 2575 6025 50 0001 C CNN F 1 "VCC" H 2575 6325 50 0000 C CNN F 2 "" H 2575 6175 50 0001 C CNN F 3 "" H 2575 6175 50 0001 C CNN 1 2575 6175 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 5E27D8C7 P 2475 6825 F 0 "R2" V 2555 6825 50 0000 C CNN F 1 "10k" V 2475 6825 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2405 6825 50 0001 C CNN F 3 "" H 2475 6825 50 0001 C CNN 1 2475 6825 -1 0 0 1 $EndComp $Comp L C_Small C5 U 1 1 5E27D8D2 P 2075 7050 F 0 "C5" V 2175 7025 50 0000 L CNN F 1 "100nF" V 1950 6950 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2075 7050 50 0001 C CNN F 3 "" H 2075 7050 50 0001 C CNN 1 2075 7050 0 -1 -1 0 $EndComp $Comp L C_Small C8 U 1 1 5E27D8E5 P 2850 6750 F 0 "C8" V 2950 6725 50 0000 L CNN F 1 "100nF" V 2725 6650 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 2850 6750 50 0001 C CNN F 3 "" H 2850 6750 50 0001 C CNN 1 2850 6750 0 -1 -1 0 $EndComp $Comp L GND #PWR019 U 1 1 5E27D8EB P 3025 6825 F 0 "#PWR019" H 3025 6575 50 0001 C CNN F 1 "GND" H 3025 6675 50 0000 C CNN F 2 "" H 3025 6825 50 0001 C CNN F 3 "" H 3025 6825 50 0001 C CNN 1 3025 6825 1 0 0 -1 $EndComp $Comp L SW_Push SW2 U 1 1 5E27D8FC P 2025 6600 F 0 "SW2" H 2075 6700 50 0000 L CNN F 1 "VID_RES" H 2025 6540 50 0000 C CNN F 2 "Buttons_Switches_THT:SW_PUSH_6mm" H 2025 6800 50 0001 C CNN F 3 "" H 2025 6800 50 0001 C CNN 1 2025 6600 1 0 0 -1 $EndComp $Comp L GND #PWR020 U 1 1 5E27D902 P 1750 6675 F 0 "#PWR020" H 1750 6425 50 0001 C CNN F 1 "GND" H 1750 6525 50 0000 C CNN F 2 "" H 1750 6675 50 0001 C CNN F 3 "" H 1750 6675 50 0001 C CNN 1 1750 6675 1 0 0 -1 $EndComp $Comp L RCA_PLUG J6 U 1 1 5E27D90D P 5675 8200 F 0 "J6" H 5685 8320 50 0000 C CNN F 1 "AUDIO" V 5790 8200 50 0000 C CNN F 2 "rca:rca_yellow" H 5675 8200 50 0001 C CNN F 3 "" H 5675 8200 50 0001 C CNN 1 5675 8200 1 0 0 -1 $EndComp $Comp L GND #PWR021 U 1 1 5E27D914 P 5675 8550 F 0 "#PWR021" H 5675 8300 50 0001 C CNN F 1 "GND" H 5675 8400 50 0000 C CNN F 2 "" H 5675 8550 50 0001 C CNN F 3 "" H 5675 8550 50 0001 C CNN 1 5675 8550 1 0 0 -1 $EndComp $Comp L D_Small D2 U 1 1 5E27D91B P 5825 9925 F 0 "D2" H 5775 10025 50 0000 L CNN F 1 "1n4148" H 5675 9845 50 0000 L CNN F 2 "Diodes_THT:D_DO-35_SOD27_P7.62mm_Horizontal" V 5825 9925 50 0001 C CNN F 3 "" V 5825 9925 50 0001 C CNN 1 5825 9925 -1 0 0 -1 $EndComp $Comp L D_Small D1 U 1 1 5E27D921 P 5825 7725 F 0 "D1" H 5775 7825 50 0000 L CNN F 1 "1n4148" H 5675 7645 50 0000 L CNN F 2 "Diodes_THT:D_DO-35_SOD27_P7.62mm_Horizontal" V 5825 7725 50 0001 C CNN F 3 "" V 5825 7725 50 0001 C CNN 1 5825 7725 -1 0 0 -1 $EndComp $Comp L R R3 U 1 1 5E27D928 P 6150 7725 F 0 "R3" V 6230 7725 50 0000 C CNN F 1 "1k" V 6150 7725 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6080 7725 50 0001 C CNN F 3 "" H 6150 7725 50 0001 C CNN 1 6150 7725 0 1 1 0 $EndComp $Comp L R R4 U 1 1 5E27D92F P 6150 9925 F 0 "R4" V 6230 9925 50 0000 C CNN F 1 "330" V 6150 9925 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6080 9925 50 0001 C CNN F 3 "" H 6150 9925 50 0001 C CNN 1 6150 9925 0 1 1 0 $EndComp $Comp L RCA_PLUG J7 U 1 1 5E27D936 P 6825 7725 F 0 "J7" H 6835 7845 50 0000 C CNN F 1 "VIDEO" V 6940 7725 50 0000 C CNN F 2 "rca:rca_yellow" H 6825 7725 50 0001 C CNN F 3 "" H 6825 7725 50 0001 C CNN 1 6825 7725 1 0 0 -1 $EndComp $Comp L GND #PWR022 U 1 1 5E27D93F P 6825 8075 F 0 "#PWR022" H 6825 7825 50 0001 C CNN F 1 "GND" H 6825 7925 50 0000 C CNN F 2 "" H 6825 8075 50 0001 C CNN F 3 "" H 6825 8075 50 0001 C CNN 1 6825 8075 1 0 0 -1 $EndComp $Comp L R R5 U 1 1 5E27D945 P 6600 8000 F 0 "R5" V 6680 8000 50 0000 C CNN F 1 "75" V 6600 8000 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6530 8000 50 0001 C CNN F 3 "" H 6600 8000 50 0001 C CNN 1 6600 8000 0 -1 -1 0 $EndComp Text GLabel 4625 9425 2 60 Input ~ 0 DA Text GLabel 4625 9525 2 60 Output ~ 0 RDA Entry Wire Line 4975 8475 4875 8575 Entry Wire Line 4975 8575 4875 8675 Entry Wire Line 4975 8675 4875 8775 Entry Wire Line 4975 8775 4875 8875 Entry Wire Line 4975 8875 4875 8975 Entry Wire Line 4975 9625 4875 9725 Entry Wire Line 4975 8375 4875 8475 Text Label 4850 8475 2 60 ~ 0 VID0 Text Label 4850 8575 2 60 ~ 0 VID1 Text Label 4850 8675 2 60 ~ 0 VID2 Text Label 4850 8775 2 60 ~ 0 VID3 Text Label 4850 8875 2 60 ~ 0 VID4 Text Label 4850 8975 2 60 ~ 0 VID5 Text Label 4850 9725 2 60 ~ 0 VID6 $Comp L Conn_02x03_Odd_Even J5 U 1 1 5E27D96B P 4975 6950 F 0 "J5" H 5025 7150 50 0000 C CNN F 1 "VID_ICSP" H 5025 6750 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm" H 4975 6950 50 0001 C CNN F 3 "" H 4975 6950 50 0001 C CNN 1 4975 6950 1 0 0 -1 $EndComp $Comp L GND #PWR023 U 1 1 5E27D973 P 5350 7125 F 0 "#PWR023" H 5350 6875 50 0001 C CNN F 1 "GND" H 5350 6975 50 0000 C CNN F 2 "" H 5350 7125 50 0001 C CNN F 3 "" H 5350 7125 50 0001 C CNN 1 5350 7125 1 0 0 -1 $EndComp NoConn ~ 4550 7625 NoConn ~ 4550 9625 NoConn ~ 4550 9825 Entry Wire Line 4975 4025 4875 3925 Entry Wire Line 4975 3925 4875 3825 Entry Wire Line 4975 3825 4875 3725 Entry Wire Line 4975 3725 4875 3625 Entry Wire Line 4975 3625 4875 3525 Entry Wire Line 4975 4675 4875 4775 Entry Wire Line 4975 4125 4875 4025 Text Label 4850 3525 2 60 ~ 0 KBD0 Text Label 4850 3625 2 60 ~ 0 KBD1 Text Label 4850 3725 2 60 ~ 0 KBD2 Text Label 4850 3825 2 60 ~ 0 KBD3 Text Label 4850 3925 2 60 ~ 0 KBD4 Text Label 4850 4025 2 60 ~ 0 KBD5 Text Label 4850 4775 2 60 ~ 0 KBD6 Text GLabel 4550 4875 2 60 Output ~ 0 STROBE $Comp L 74LS00 U3 U 2 1 5E292967 P 12200 3200 F 0 "U3" H 12200 3250 50 0000 C CNN F 1 "74LS00" H 12200 3100 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket_LongPads" H 12200 3200 50 0001 C CNN F 3 "" H 12200 3200 50 0001 C CNN 2 12200 3200 1 0 0 1 $EndComp $Comp L 74LS00 U3 U 3 1 5E2929EC P 9750 10225 F 0 "U3" H 9750 10275 50 0000 C CNN F 1 "74LS00" H 9750 10125 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket_LongPads" H 9750 10225 50 0001 C CNN F 3 "" H 9750 10225 50 0001 C CNN 3 9750 10225 0 -1 -1 0 $EndComp $Comp L 74LS00 U3 U 4 1 5E292B70 P 10200 10225 F 0 "U3" H 10200 10275 50 0000 C CNN F 1 "74LS00" H 10200 10125 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm_Socket_LongPads" H 10200 10225 50 0001 C CNN F 3 "" H 10200 10225 50 0001 C CNN 4 10200 10225 0 -1 -1 0 $EndComp $Comp L GND #PWR024 U 1 1 5E294B29 P 9975 10975 F 0 "#PWR024" H 9975 10725 50 0001 C CNN F 1 "GND" H 9975 10825 50 0000 C CNN F 2 "" H 9975 10975 50 0001 C CNN F 3 "" H 9975 10975 50 0001 C CNN 1 9975 10975 1 0 0 -1 $EndComp NoConn ~ 9750 9625 NoConn ~ 10200 9625 $Comp L C_Small C1 U 1 1 5E295578 P 10850 10750 F 0 "C1" V 10950 10725 50 0000 L CNN F 1 "100nF" V 10725 10650 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 10850 10750 50 0001 C CNN F 3 "" H 10850 10750 50 0001 C CNN 1 10850 10750 1 0 0 -1 $EndComp $Comp L C_Small C2 U 1 1 5E295920 P 11150 10750 F 0 "C2" V 11250 10725 50 0000 L CNN F 1 "100nF" V 11025 10650 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 11150 10750 50 0001 C CNN F 3 "" H 11150 10750 50 0001 C CNN 1 11150 10750 1 0 0 -1 $EndComp $Comp L C_Small C3 U 1 1 5E296960 P 11450 10750 F 0 "C3" V 11550 10725 50 0000 L CNN F 1 "100nF" V 11325 10650 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 11450 10750 50 0001 C CNN F 3 "" H 11450 10750 50 0001 C CNN 1 11450 10750 1 0 0 -1 $EndComp $Comp L VCC #PWR025 U 1 1 5E29942C P 10850 10500 F 0 "#PWR025" H 10850 10350 50 0001 C CNN F 1 "VCC" H 10850 10650 50 0000 C CNN F 2 "" H 10850 10500 50 0001 C CNN F 3 "" H 10850 10500 50 0001 C CNN 1 10850 10500 1 0 0 -1 $EndComp $Comp L GND #PWR026 U 1 1 5E299849 P 11450 11000 F 0 "#PWR026" H 11450 10750 50 0001 C CNN F 1 "GND" H 11450 10850 50 0000 C CNN F 2 "" H 11450 11000 50 0001 C CNN F 3 "" H 11450 11000 50 0001 C CNN 1 11450 11000 1 0 0 -1 $EndComp NoConn ~ 4550 4975 $Comp L PS/2_Connector J8 U 1 1 5E29DBB0 P 6325 4975 F 0 "J8" H 6325 5225 50 0000 C CNN F 1 "Keyboard" H 6325 4725 50 0000 C CNN F 2 "ps2:MINI-DIN-6-FULL-SHIELD" H 6325 4975 50 0001 C CNN F 3 "" H 6325 4975 50 0001 C CNN 1 6325 4975 1 0 0 -1 $EndComp Text Label 6525 4475 2 60 ~ 0 PS2_CLK $Comp L GND #PWR027 U 1 1 5E29FEFC P 6800 5150 F 0 "#PWR027" H 6800 4900 50 0001 C CNN F 1 "GND" H 6800 5000 50 0000 C CNN F 2 "" H 6800 5150 50 0001 C CNN F 3 "" H 6800 5150 50 0001 C CNN 1 6800 5150 1 0 0 -1 $EndComp Wire Wire Line 14450 6000 14775 6000 Wire Wire Line 14450 6400 14775 6400 Wire Wire Line 14450 6500 14775 6500 Wire Wire Line 14175 6525 14175 6600 Wire Wire Line 14175 6600 14775 6600 Wire Wire Line 14175 6700 14775 6700 Wire Wire Line 14175 6700 14175 6775 Wire Wire Line 14450 5000 14775 5000 Wire Wire Line 14450 5100 14775 5100 Wire Wire Line 14450 5200 14775 5200 Wire Wire Line 14450 5300 14775 5300 Wire Wire Line 14450 5400 14775 5400 Wire Wire Line 14450 5500 14775 5500 Wire Wire Line 14450 5600 14775 5600 Wire Wire Line 14450 5700 14775 5700 Wire Wire Line 13175 7525 12850 7525 Wire Wire Line 13175 7425 12850 7425 Wire Wire Line 13175 7325 12850 7325 Wire Wire Line 13175 7225 12850 7225 Wire Wire Line 13175 7125 12850 7125 Wire Wire Line 13175 7025 12850 7025 Wire Wire Line 13175 6925 12850 6925 Wire Wire Line 13175 6825 12850 6825 Wire Wire Line 13175 6225 12850 6225 Wire Wire Line 13175 6125 12850 6125 Wire Wire Line 13175 6025 12850 6025 Wire Wire Line 13175 5925 12850 5925 Wire Wire Line 13175 5825 12850 5825 Wire Wire Line 14450 6800 14775 6800 Wire Wire Line 14450 6900 14775 6900 Wire Wire Line 14450 7200 14775 7200 Wire Wire Line 14450 8000 14775 8000 Wire Wire Line 14450 8100 14775 8100 Wire Wire Line 14450 8200 14775 8200 Wire Wire Line 14450 8300 14775 8300 Wire Wire Line 11275 4150 11600 4150 Wire Wire Line 11275 4250 11600 4250 Wire Wire Line 11275 4350 11600 4350 Wire Wire Line 11275 4650 11600 4650 Wire Wire Line 11525 4750 11525 4925 Wire Wire Line 11525 4750 11600 4750 Wire Wire Line 11600 4850 11525 4850 Connection ~ 11525 4850 Wire Wire Line 12850 5525 12925 5525 Wire Wire Line 12925 4650 12800 4650 Wire Wire Line 12850 5625 13050 5625 Wire Wire Line 13050 5625 13050 5525 Wire Wire Line 12925 5525 12925 4650 Wire Bus Line 13275 5925 13275 7625 Wire Bus Line 11175 3200 11175 4750 Wire Bus Line 14350 4900 14350 6400 Wire Bus Line 14350 6900 14350 8400 Wire Bus Line 14350 5600 13750 5600 Wire Bus Line 13750 3850 13750 7600 Wire Bus Line 13750 7600 14350 7600 Wire Bus Line 13750 6650 13275 6650 Wire Bus Line 11100 4500 11175 4500 Wire Bus Line 11100 2800 11100 4500 Wire Wire Line 2650 4875 2575 4875 Wire Wire Line 2575 4875 2575 5075 Wire Wire Line 2650 4975 2575 4975 Connection ~ 2575 4975 Wire Wire Line 2575 3275 2575 3225 Wire Wire Line 2325 3225 2650 3225 Wire Wire Line 2575 3475 2575 3525 Wire Wire Line 2325 3525 2650 3525 Connection ~ 2575 3525 Connection ~ 2575 3225 Wire Wire Line 2125 3525 2050 3525 Wire Wire Line 2050 3225 2050 3600 Wire Wire Line 2050 3225 2125 3225 Connection ~ 2050 3525 Wire Wire Line 2575 1225 2575 1300 Wire Wire Line 2575 2675 2650 2675 Wire Wire Line 2575 1500 2575 2775 Wire Wire Line 2475 1650 5950 1650 Wire Wire Line 2475 1650 2475 1725 Connection ~ 2575 1650 Wire Wire Line 2475 2025 2475 2975 Wire Wire Line 1400 2100 1975 2100 Wire Wire Line 2175 2100 4775 2100 Connection ~ 2475 2100 Wire Wire Line 1400 2600 1475 2600 Wire Wire Line 1475 2600 1475 2675 Wire Wire Line 1400 2400 2575 2400 Connection ~ 2575 2400 Wire Wire Line 1400 2300 1750 2300 Wire Wire Line 1400 2200 1825 2200 Wire Wire Line 1825 3825 2650 3825 Wire Wire Line 1750 3925 2650 3925 Wire Wire Line 3025 1875 3025 1800 Wire Wire Line 3025 1800 2950 1800 Wire Wire Line 2300 2100 2300 1650 Wire Wire Line 2300 1650 2225 1650 Connection ~ 2300 2100 Wire Wire Line 1750 1725 1750 1650 Wire Wire Line 1750 1650 1825 1650 Wire Wire Line 4550 2975 5450 2975 Wire Wire Line 11225 7425 11550 7425 Wire Wire Line 11225 7325 11550 7325 Wire Wire Line 11225 7225 11550 7225 Wire Wire Line 11225 7125 11550 7125 Wire Wire Line 11225 7025 11550 7025 Wire Wire Line 11225 6925 11550 6925 Wire Wire Line 11225 6825 11550 6825 Wire Wire Line 11225 6125 11550 6125 Wire Wire Line 11225 6025 11550 6025 Wire Wire Line 11225 5925 11550 5925 Wire Wire Line 11225 5825 11550 5825 Wire Wire Line 11225 5725 11550 5725 Wire Wire Line 11225 5625 11550 5625 Wire Wire Line 11225 5525 11550 5525 Wire Wire Line 11000 6225 11550 6225 Wire Wire Line 11000 6150 11000 6225 Wire Wire Line 11025 7725 11100 7725 Wire Wire Line 11100 7725 11100 7925 Wire Wire Line 11100 7825 11550 7825 Wire Wire Line 11100 7925 11025 7925 Connection ~ 11100 7825 Wire Wire Line 11475 7725 11550 7725 Wire Wire Line 9750 7825 9825 7825 Wire Wire Line 9400 7525 11550 7525 Wire Wire Line 9475 7525 9475 7825 Wire Wire Line 9475 7825 9550 7825 Connection ~ 9475 7525 Wire Wire Line 11475 6425 11550 6425 Wire Wire Line 5350 1650 5350 1900 Wire Wire Line 5350 1900 5275 1900 Wire Wire Line 5350 2175 5350 2100 Wire Wire Line 5350 2100 5275 2100 Wire Wire Line 4625 3075 4550 3075 Wire Wire Line 4625 1900 4625 3075 Wire Wire Line 4700 3175 4550 3175 Wire Wire Line 4700 2000 4700 3175 Wire Wire Line 4775 1900 4625 1900 Wire Wire Line 4775 2000 4700 2000 Wire Wire Line 5275 2000 5450 2000 Wire Wire Line 5450 2000 5450 2975 Wire Wire Line 2750 1800 2575 1800 Connection ~ 2575 1800 Wire Wire Line 2650 9825 2575 9825 Wire Wire Line 2575 9825 2575 10025 Wire Wire Line 2650 9925 2575 9925 Connection ~ 2575 9925 Wire Wire Line 2575 8225 2575 8175 Wire Wire Line 2325 8175 2650 8175 Wire Wire Line 2575 8425 2575 8475 Wire Wire Line 2325 8475 2650 8475 Connection ~ 2575 8475 Connection ~ 2575 8175 Wire Wire Line 2125 8475 2050 8475 Wire Wire Line 2050 8175 2050 8550 Wire Wire Line 2050 8175 2125 8175 Connection ~ 2050 8475 Wire Wire Line 2575 6175 2575 6250 Wire Wire Line 2575 7625 2650 7625 Wire Wire Line 2575 6450 2575 7725 Wire Wire Line 2475 6600 5350 6600 Wire Wire Line 2475 6600 2475 6675 Connection ~ 2575 6600 Wire Wire Line 2475 6975 2475 7925 Wire Wire Line 1450 7050 1975 7050 Wire Wire Line 2175 7050 4775 7050 Connection ~ 2475 7050 Wire Wire Line 1450 7550 1525 7550 Wire Wire Line 1525 7550 1525 7625 Wire Wire Line 1450 7350 2575 7350 Connection ~ 2575 7350 Wire Wire Line 1450 7250 1825 7250 Wire Wire Line 1825 7250 1825 8875 Wire Wire Line 1450 7150 1900 7150 Wire Wire Line 1900 7150 1900 8775 Wire Wire Line 1900 8775 2650 8775 Wire Wire Line 1825 8875 2650 8875 Wire Wire Line 3025 6825 3025 6750 Wire Wire Line 3025 6750 2950 6750 Wire Wire Line 2300 7050 2300 6600 Wire Wire Line 2300 6600 2225 6600 Connection ~ 2300 7050 Wire Wire Line 1750 6675 1750 6600 Wire Wire Line 1750 6600 1825 6600 Wire Wire Line 4550 7925 5450 7925 Wire Wire Line 4550 9925 5725 9925 Wire Wire Line 4550 7725 5725 7725 Wire Wire Line 5925 7725 6000 7725 Wire Wire Line 5925 9925 6000 9925 Wire Wire Line 6375 9925 6300 9925 Wire Wire Line 6375 7725 6375 9925 Wire Wire Line 6300 7725 6675 7725 Connection ~ 6375 7725 Wire Wire Line 6825 7925 6825 8075 Wire Wire Line 6750 8000 6825 8000 Connection ~ 6825 8000 Wire Wire Line 6450 8000 6375 8000 Connection ~ 6375 8000 Wire Wire Line 4625 9425 4550 9425 Wire Wire Line 4550 9525 4625 9525 Wire Wire Line 4875 9725 4550 9725 Wire Wire Line 4875 8975 4550 8975 Wire Wire Line 4875 8875 4550 8875 Wire Wire Line 4875 8775 4550 8775 Wire Wire Line 4875 8675 4550 8675 Wire Wire Line 4875 8575 4550 8575 Wire Wire Line 4875 8475 4550 8475 Wire Bus Line 4975 8375 4975 9625 Wire Wire Line 5350 6600 5350 6850 Wire Wire Line 5350 6850 5275 6850 Wire Wire Line 5350 7125 5350 7050 Wire Wire Line 5350 7050 5275 7050 Wire Wire Line 4625 8025 4550 8025 Wire Wire Line 4625 6850 4625 8025 Wire Wire Line 4700 8125 4550 8125 Wire Wire Line 4700 6950 4700 8125 Wire Wire Line 4775 6850 4625 6850 Wire Wire Line 4775 6950 4700 6950 Wire Wire Line 5275 6950 5450 6950 Wire Wire Line 5450 6950 5450 8200 Connection ~ 5450 7925 Wire Wire Line 5450 8200 5525 8200 Wire Wire Line 2750 6750 2575 6750 Connection ~ 2575 6750 Wire Bus Line 11125 6725 11125 7325 Wire Bus Line 11125 5425 11125 6025 Wire Bus Line 11125 7025 8025 7025 Wire Bus Line 8025 7025 8025 9000 Wire Bus Line 8025 9000 4975 9000 Wire Wire Line 4875 4775 4550 4775 Wire Wire Line 4875 4025 4550 4025 Wire Wire Line 4875 3925 4550 3925 Wire Wire Line 4875 3825 4550 3825 Wire Wire Line 4875 3725 4550 3725 Wire Wire Line 4875 3625 4550 3625 Wire Wire Line 4875 3525 4550 3525 Wire Bus Line 4975 3625 4975 4675 Wire Bus Line 11125 5725 8025 5725 Wire Bus Line 8025 5725 8025 4150 Wire Bus Line 8025 4150 4975 4150 Wire Wire Line 9650 10900 10300 10900 Wire Wire Line 9650 10825 9650 10900 Wire Wire Line 9850 10900 9850 10825 Connection ~ 9850 10900 Wire Wire Line 10850 10500 10850 10650 Wire Wire Line 10850 10575 11450 10575 Wire Wire Line 11150 10575 11150 10650 Wire Wire Line 10850 10850 10850 10925 Wire Wire Line 10850 10925 11450 10925 Wire Wire Line 11150 10925 11150 10850 Wire Wire Line 11450 10575 11450 10650 Connection ~ 11150 10575 Wire Wire Line 11450 10850 11450 11000 Connection ~ 11150 10925 Connection ~ 11450 10925 Connection ~ 10850 10575 Wire Wire Line 4550 4475 6700 4475 Wire Wire Line 4550 4575 5850 4575 Text Label 6525 5450 2 60 ~ 0 PS2_DATA Wire Wire Line 6625 5075 6700 5075 Wire Wire Line 6700 5075 6700 5450 Wire Wire Line 5850 5450 7100 5450 Wire Wire Line 5850 4575 5850 5450 Wire Wire Line 6800 4975 6800 5150 Wire Wire Line 6800 4975 6625 4975 Wire Wire Line 6625 4875 6900 4875 Wire Wire Line 6700 4475 6700 4875 NoConn ~ 6025 4875 Wire Wire Line 5950 4975 6025 4975 Wire Wire Line 5950 1650 5950 4975 Connection ~ 5350 1650 NoConn ~ 4550 2775 NoConn ~ 14775 6300 Text Notes 12175 10925 0 60 ~ 0 RC6502 Terminal Text Notes 11825 10250 0 60 ~ 0 Implements the Apple1 video and keyboard input section, but uses two Atmega328s in\nplace of the original hardware while working somewhat like two separate Arduino on\nthe board. $Comp L R R8 U 1 1 5E2B081B P 6900 4650 F 0 "R8" V 6980 4650 50 0000 C CNN F 1 "10k" V 6900 4650 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6830 4650 50 0001 C CNN F 3 "" H 6900 4650 50 0001 C CNN 1 6900 4650 1 0 0 -1 $EndComp $Comp L R R9 U 1 1 5E2B0EDB P 7100 4650 F 0 "R9" V 7180 4650 50 0000 C CNN F 1 "10k" V 7100 4650 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7030 4650 50 0001 C CNN F 3 "" H 7100 4650 50 0001 C CNN 1 7100 4650 1 0 0 -1 $EndComp Wire Wire Line 6900 4875 6900 4800 Connection ~ 6700 4875 Wire Wire Line 7100 5450 7100 4800 Connection ~ 6700 5450 Wire Wire Line 6900 4500 6900 4300 Wire Wire Line 5950 4300 7100 4300 Connection ~ 5950 4300 Wire Wire Line 7100 4300 7100 4500 Connection ~ 6900 4300 NoConn ~ 6025 5075 $Comp L LED D3 U 1 1 5E2B88B6 P 5225 8125 F 0 "D3" H 5225 8225 50 0000 C CNN F 1 "VID" H 5225 8025 50 0000 C CNN F 2 "LEDs:LED_D5.0mm" H 5225 8125 50 0001 C CNN F 3 "" H 5225 8125 50 0001 C CNN 1 5225 8125 -1 0 0 -1 $EndComp $Comp L R R6 U 1 1 5E2B8CE9 P 4925 8125 F 0 "R6" V 5005 8125 50 0000 C CNN F 1 "220" V 4925 8125 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4855 8125 50 0001 C CNN F 3 "" H 4925 8125 50 0001 C CNN 1 4925 8125 0 1 1 0 $EndComp Wire Wire Line 4550 7825 4775 7825 Wire Wire Line 4775 7825 4775 8125 Wire Wire Line 5675 8400 5675 8550 Wire Wire Line 5375 8125 5375 8475 Wire Wire Line 5375 8475 5675 8475 Connection ~ 5675 8475 $Comp L LED D4 U 1 1 5E2BB703 P 5525 3175 F 0 "D4" H 5525 3275 50 0000 C CNN F 1 "KBD" H 5525 3075 50 0000 C CNN F 2 "LEDs:LED_D5.0mm" H 5525 3175 50 0001 C CNN F 3 "" H 5525 3175 50 0001 C CNN 1 5525 3175 -1 0 0 -1 $EndComp $Comp L R R7 U 1 1 5E2BB709 P 5225 3175 F 0 "R7" V 5305 3175 50 0000 C CNN F 1 "220" V 5225 3175 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5155 3175 50 0001 C CNN F 3 "" H 5225 3175 50 0001 C CNN 1 5225 3175 0 1 1 0 $EndComp Wire Wire Line 4550 2875 4775 2875 Wire Wire Line 4775 2875 4775 3175 Wire Wire Line 4775 3175 5075 3175 Wire Wire Line 5675 3175 5750 3175 Wire Wire Line 5750 3175 5750 3250 $Comp L GND #PWR028 U 1 1 5E2BC015 P 5750 3250 F 0 "#PWR028" H 5750 3000 50 0001 C CNN F 1 "GND" H 5750 3100 50 0000 C CNN F 2 "" H 5750 3250 50 0001 C CNN F 3 "" H 5750 3250 50 0001 C CNN 1 5750 3250 1 0 0 -1 $EndComp Wire Wire Line 1750 2300 1750 3925 Wire Wire Line 1825 2200 1825 3825 NoConn ~ 2650 7825 Wire Wire Line 2475 7925 2650 7925 Wire Wire Line 2575 7725 2650 7725 Connection ~ 2575 7625 Wire Wire Line 2575 2775 2650 2775 Connection ~ 2575 2675 NoConn ~ 2650 2875 Wire Wire Line 2475 2975 2650 2975 $Comp L ATMEGA328_MCU U4 U 1 1 5E25B941 P 3550 3775 F 0 "U4" H 2800 5025 50 0000 L BNN F 1 "ATMEGA328_MCU" H 3950 2375 50 0000 L BNN F 2 "Housings_DIP:DIP-28_W7.62mm_Socket" H 3550 3775 50 0001 C CIN F 3 "" H 3550 3775 50 0001 C CNN 1 3550 3775 1 0 0 -1 $EndComp $Comp L Jumper_NC_Dual JP3 U 1 1 5E2D1584 P 12875 3525 F 0 "JP3" H 12925 3425 50 0000 L CNN F 1 "SELECT" H 12875 3625 50 0000 C BNN F 2 "Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm" H 12875 3525 50 0001 C CNN F 3 "" H 12875 3525 50 0001 C CNN 1 12875 3525 0 -1 -1 0 $EndComp Wire Wire Line 12875 3275 12875 3200 Wire Wire Line 12875 3200 12800 3200 Entry Wire Line 11175 3200 11275 3100 Text Label 11300 3100 0 60 ~ 0 A4 Wire Wire Line 11275 3100 11600 3100 Wire Wire Line 12875 3775 12875 3850 Wire Wire Line 12875 3850 11525 3850 Wire Wire Line 11525 3850 11525 3100 Wire Wire Line 11525 3300 11600 3300 Connection ~ 11525 3100 Connection ~ 11525 3300 Wire Wire Line 10100 10900 10100 10825 Wire Wire Line 10300 10900 10300 10825 Connection ~ 10100 10900 Wire Wire Line 9975 10900 9975 10975 Connection ~ 9975 10900 Wire Wire Line 12850 5725 13175 5725 Wire Wire Line 13175 5725 13175 3525 Wire Wire Line 13175 3525 12975 3525 Wire Bus Line 11100 2800 13750 2800 Wire Bus Line 13750 2800 13750 3875 Wire Notes Line 10975 5125 13825 5125 Wire Notes Line 13825 5125 13825 2725 Wire Notes Line 13825 2725 10975 2725 Wire Notes Line 10975 2725 10975 5125 Text Notes 11000 2700 0 60 ~ 0 Address decoding places PIA at the expected addresses\n$D010 to $D012, these registers are mirrored across the\nentire $Dxxx range. SELECT should be on 1-2, 2-3 is used\nif this card should instead be placed on $D000 to $D002\n(for debugging). Text Notes 15400 11075 0 60 ~ 0 A $EndSCHEMATC