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: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 B $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 3200 6000 F 0 "X1" H 3000 6250 50 0000 L CNN F 1 "3.579545 MHz" H 3250 5750 50 0000 L CNN F 2 "Oscillators:Oscillator_DIP-14" H 3650 5650 50 0001 C CNN F 3 "" H 3100 6000 50 0001 C CNN 1 3200 6000 1 0 0 -1 $EndComp $Comp L 74LS04 U8 U 6 1 5C045943 P 1575 4650 F 0 "U8" H 1770 4765 50 0000 C CNN F 1 "74HCT04" H 1765 4525 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 1575 4650 50 0001 C CNN F 3 "" H 1575 4650 50 0001 C CNN 6 1575 4650 1 0 0 -1 $EndComp $Comp L 74LS04 U8 U 5 1 5C045944 P 1275 4175 F 0 "U8" H 1470 4290 50 0000 C CNN F 1 "74HCT04" H 1465 4050 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 1275 4175 50 0001 C CNN F 3 "" H 1275 4175 50 0001 C CNN 5 1275 4175 1 0 0 -1 $EndComp $Comp L 74LS04 U8 U 3 1 5C045945 P 2625 3050 F 0 "U8" H 2820 3165 50 0000 C CNN F 1 "74HCT04" H 2815 2925 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 2625 3050 50 0001 C CNN F 3 "" H 2625 3050 50 0001 C CNN 3 2625 3050 1 0 0 -1 $EndComp $Comp L 74LS04 U8 U 1 1 5C045946 P 1425 2375 F 0 "U8" H 1620 2490 50 0000 C CNN F 1 "74HCT04" H 1615 2250 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 1425 2375 50 0001 C CNN F 3 "" H 1425 2375 50 0001 C CNN 1 1425 2375 1 0 0 -1 $EndComp Wire Wire Line 10775 675 10775 975 NoConn ~ 10450 1575 $Comp L C C7 U 1 1 5C045947 P 5725 7100 F 0 "C7" H 5750 7200 50 0000 L CNN F 1 "100nF" H 5750 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5763 6950 50 0001 C CNN F 3 "" H 5725 7100 50 0001 C CNN 1 5725 7100 1 0 0 -1 $EndComp Wire Wire Line 6025 6900 6025 6950 Wire Wire Line 6025 7300 6025 7250 $Comp L C C6 U 1 1 5C045948 P 5425 7100 F 0 "C6" H 5450 7200 50 0000 L CNN F 1 "100nF" H 5450 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5463 6950 50 0001 C CNN F 3 "" H 5425 7100 50 0001 C CNN 1 5425 7100 1 0 0 -1 $EndComp $Comp L C C5 U 1 1 5C045949 P 5125 7100 F 0 "C5" H 5150 7200 50 0000 L CNN F 1 "100nF" H 5150 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 5163 6950 50 0001 C CNN F 3 "" H 5125 7100 50 0001 C CNN 1 5125 7100 1 0 0 -1 $EndComp $Comp L C C4 U 1 1 5C04594A P 4825 7100 F 0 "C4" H 4850 7200 50 0000 L CNN F 1 "100nF" H 4850 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4863 6950 50 0001 C CNN F 3 "" H 4825 7100 50 0001 C CNN 1 4825 7100 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 5C04594B P 4525 7100 F 0 "C3" H 4550 7200 50 0000 L CNN F 1 "100nF" H 4550 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4563 6950 50 0001 C CNN F 3 "" H 4525 7100 50 0001 C CNN 1 4525 7100 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 5C04594C P 4225 7100 F 0 "C2" H 4250 7200 50 0000 L CNN F 1 "100nF" H 4250 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 4263 6950 50 0001 C CNN F 3 "" H 4225 7100 50 0001 C CNN 1 4225 7100 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 5C04594D P 3925 7100 F 0 "C1" H 3950 7200 50 0000 L CNN F 1 "100nF" H 3950 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 3963 6950 50 0001 C CNN F 3 "" H 3925 7100 50 0001 C CNN 1 3925 7100 1 0 0 -1 $EndComp Wire Wire Line 3925 6900 6600 6900 Wire Wire Line 4225 6900 4225 6950 Connection ~ 6025 6900 Wire Wire Line 4525 6950 4525 6900 Connection ~ 4525 6900 Wire Wire Line 4825 6950 4825 6900 Connection ~ 4825 6900 Wire Wire Line 5125 6950 5125 6900 Connection ~ 5125 6900 Wire Wire Line 5425 6950 5425 6900 Connection ~ 5425 6900 Wire Wire Line 5725 6950 5725 6900 Connection ~ 5725 6900 Wire Wire Line 4225 7250 4225 7300 Wire Wire Line 3925 7300 6600 7300 Connection ~ 6025 7300 Wire Wire Line 5725 7250 5725 7300 Connection ~ 5725 7300 Wire Wire Line 5425 7250 5425 7300 Connection ~ 5425 7300 Wire Wire Line 5125 7250 5125 7300 Connection ~ 5125 7300 Wire Wire Line 4825 7250 4825 7300 Connection ~ 4825 7300 Wire Wire Line 4525 7250 4525 7300 Connection ~ 4525 7300 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 9200 4425 0 60 Input ~ 0 ~FS NoConn ~ 10400 5850 NoConn ~ 10400 5950 $Comp L C C8 U 1 1 5C045950 P 6025 7100 F 0 "C8" H 6050 7200 50 0000 L CNN F 1 "100nF" H 6050 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6063 6950 50 0001 C CNN F 3 "" H 6025 7100 50 0001 C CNN 1 6025 7100 1 0 0 -1 $EndComp Wire Wire Line 3925 6900 3925 6950 Connection ~ 4225 6900 Wire Wire Line 3925 7250 3925 7300 Connection ~ 4225 7300 $Comp L Mounting J4 U 1 1 5C045951 P 10250 1975 F 0 "J4" V 10350 1975 50 0000 C CNN F 1 "Hole" V 10350 1975 50 0001 C CNN F 2 "rc6502:Mounting" H 10250 1975 50 0001 C CNN F 3 "" H 10250 1975 50 0001 C CNN 1 10250 1975 0 1 1 0 $EndComp $Comp L Mounting J6 U 1 1 5C045952 P 10500 1975 F 0 "J6" V 10600 1975 50 0000 C CNN F 1 "Hole" V 10600 1975 50 0001 C CNN F 2 "rc6502:Mounting" H 10500 1975 50 0001 C CNN F 3 "" H 10500 1975 50 0001 C CNN 1 10500 1975 0 1 1 0 $EndComp $Comp L Mounting J5 U 1 1 5C045953 P 10375 1975 F 0 "J5" V 10475 1975 50 0000 C CNN F 1 "Hole" V 10475 1975 50 0001 C CNN F 2 "rc6502:Mounting" H 10375 1975 50 0001 C CNN F 3 "" H 10375 1975 50 0001 C CNN 1 10375 1975 0 1 1 0 $EndComp $Comp L Mounting J7 U 1 1 5C045954 P 10625 1975 F 0 "J7" V 10725 1975 50 0000 C CNN F 1 "Hole" V 10725 1975 50 0001 C CNN F 2 "rc6502:Mounting" H 10625 1975 50 0001 C CNN F 3 "" H 10625 1975 50 0001 C CNN 1 10625 1975 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 "" 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 $Comp L GND #PWR02 U 1 1 5C04B599 P 9800 4300 F 0 "#PWR02" H 9800 4050 50 0001 C CNN F 1 "GND" H 9800 4150 50 0000 C CNN F 2 "" H 9800 4300 50 0001 C CNN F 3 "" H 9800 4300 50 0001 C CNN 1 9800 4300 1 0 0 -1 $EndComp NoConn ~ 10400 6050 NoConn ~ 10400 4850 NoConn ~ 10400 4950 Wire Wire Line 9800 4300 9800 4050 Wire Wire Line 9800 4050 10400 4050 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 10400 4350 10250 4350 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 2425 F 0 "U4" H 8350 2225 50 0000 C CNN F 1 "74LS244" H 8350 2625 50 0000 C CNN F 2 "" H 8350 2425 50 0001 C CNN F 3 "" H 8350 2425 50 0001 C CNN 1 8350 2425 -1 0 0 1 $EndComp Wire Wire Line 9650 4150 9650 4050 $Comp L 74LS244 U3 U 1 1 5C056659 P 8350 1225 F 0 "U3" H 8350 1025 50 0000 C CNN F 1 "74LS244" H 8350 1425 50 0000 C CNN F 2 "" H 8350 1225 50 0001 C CNN F 3 "" H 8350 1225 50 0001 C CNN 1 8350 1225 -1 0 0 1 $EndComp Text GLabel 9050 2225 2 60 Input ~ 0 A7 Text GLabel 9050 2325 2 60 Input ~ 0 A6 Text GLabel 9050 2425 2 60 Input ~ 0 A5 Text GLabel 9050 2525 2 60 Input ~ 0 A4 Text GLabel 9050 2625 2 60 Input ~ 0 A3 Text GLabel 9050 2725 2 60 Input ~ 0 A2 Text GLabel 9050 2825 2 60 Input ~ 0 A1 Text GLabel 9050 2925 2 60 Input ~ 0 A0 Text GLabel 9050 1025 2 60 Input ~ 0 A15 Text GLabel 9050 1125 2 60 Input ~ 0 A14 Text GLabel 9050 1225 2 60 Input ~ 0 A13 Text GLabel 9050 1325 2 60 Input ~ 0 A12 Text GLabel 9050 1425 2 60 Input ~ 0 A11 Text GLabel 9050 1525 2 60 Input ~ 0 A10 Text GLabel 9050 1625 2 60 Input ~ 0 A9 Text GLabel 9050 1725 2 60 Input ~ 0 A8 $Comp L 74LS245 U5 U 1 1 5C057ABB P 8350 3925 F 0 "U5" H 8350 4125 50 0000 C BNN F 1 "74LS245" H 8350 3725 50 0000 C CNN F 2 "" H 8350 3925 50 0001 C CNN F 3 "" H 8350 3925 50 0001 C CNN 1 8350 3925 1 0 0 -1 $EndComp Wire Wire Line 9650 4150 10400 4150 Text GLabel 9050 3425 2 60 BiDi ~ 0 D7 Text GLabel 9050 3525 2 60 BiDi ~ 0 D6 Text GLabel 9050 3625 2 60 BiDi ~ 0 D5 Text GLabel 9050 3725 2 60 BiDi ~ 0 D4 Text GLabel 9050 3825 2 60 BiDi ~ 0 D3 Text GLabel 9050 3925 2 60 BiDi ~ 0 D2 Text GLabel 9050 4025 2 60 BiDi ~ 0 D1 Text GLabel 9050 4125 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 NoConn ~ 2100 1225 $Comp L Conn_02x05_Odd_Even J2 U 1 1 5C0413AA P 2600 925 F 0 "J2" H 2650 1225 50 0000 C CNN F 1 "VDU_BASE" H 2650 625 50 0000 C CNN F 2 "" H 2600 925 50 0001 C CNN F 3 "" H 2600 925 50 0001 C CNN 1 2600 925 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 1325 NoConn ~ 2100 1425 Wire Wire Line 2900 725 3300 725 Wire Wire Line 2975 725 2975 1125 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 1325 0 60 ~ 0 ROM Text Notes 2125 1425 0 60 ~ 0 ROM Text Notes 2125 1225 0 60 ~ 0 PIA 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 3650 6000 2 60 Output ~ 0 VDU_CLK Wire Wire Line 3500 6000 3650 6000 $Comp L GND #PWR03 U 1 1 5C0463DB P 3200 6300 F 0 "#PWR03" H 3200 6050 50 0001 C CNN F 1 "GND" H 3200 6150 50 0000 C CNN F 2 "" H 3200 6300 50 0001 C CNN F 3 "" H 3200 6300 50 0001 C CNN 1 3200 6300 1 0 0 -1 $EndComp $Comp L VCC #PWR04 U 1 1 5C0465FA P 3200 5700 F 0 "#PWR04" H 3200 5550 50 0001 C CNN F 1 "VCC" H 3200 5850 50 0000 C CNN F 2 "" H 3200 5700 50 0001 C CNN F 3 "" H 3200 5700 50 0001 C CNN 1 3200 5700 1 0 0 -1 $EndComp $Comp L VCC #PWR05 U 1 1 5C046B61 P 6600 6825 F 0 "#PWR05" H 6600 6675 50 0001 C CNN F 1 "VCC" H 6600 6975 50 0000 C CNN F 2 "" H 6600 6825 50 0001 C CNN F 3 "" H 6600 6825 50 0001 C CNN 1 6600 6825 1 0 0 -1 $EndComp $Comp L GND #PWR06 U 1 1 5C046BC0 P 6600 7375 F 0 "#PWR06" H 6600 7125 50 0001 C CNN F 1 "GND" H 6600 7225 50 0000 C CNN F 2 "" H 6600 7375 50 0001 C CNN F 3 "" H 6600 7375 50 0001 C CNN 1 6600 7375 1 0 0 -1 $EndComp Text GLabel 7650 4325 0 60 Input ~ 0 RAM_RW Text GLabel 7650 2225 0 60 Output ~ 0 VA7 Text GLabel 7650 2325 0 60 Output ~ 0 VA6 Text GLabel 7650 2425 0 60 Output ~ 0 VA5 Text GLabel 7650 2525 0 60 Output ~ 0 VA4 Text GLabel 7650 2625 0 60 Output ~ 0 VA3 Text GLabel 7650 2725 0 60 Output ~ 0 VA2 Text GLabel 7650 2825 0 60 Output ~ 0 VA1 Text GLabel 7650 2925 0 60 Output ~ 0 VA0 Text GLabel 7650 1125 0 60 Output ~ 0 VA14 Text GLabel 7650 1225 0 60 Output ~ 0 VA13 Text GLabel 7650 1325 0 60 Output ~ 0 VA12 Text GLabel 7650 1425 0 60 Output ~ 0 VA11 Text GLabel 7650 1525 0 60 Output ~ 0 VA10 Text GLabel 7650 1625 0 60 Output ~ 0 VA9 Text GLabel 7650 1725 0 60 Output ~ 0 VA8 $Comp L 74LS374 U6 U 1 1 5C049977 P 8350 5125 F 0 "U6" H 8350 5025 50 0000 C CNN F 1 "74LS374" H 8350 5225 50 0000 C CNN F 2 "" H 8350 5125 50 0001 C CNN F 3 "" H 8350 5125 50 0001 C CNN 1 8350 5125 -1 0 0 1 $EndComp Text GLabel 9050 4925 2 60 Input ~ 0 D7 Text GLabel 9050 5025 2 60 Input ~ 0 D6 Text GLabel 9050 5125 2 60 Input ~ 0 D5 Text GLabel 9050 5225 2 60 Input ~ 0 D4 Text GLabel 9050 5325 2 60 Input ~ 0 D3 Text GLabel 9050 5425 2 60 Input ~ 0 D2 Text GLabel 9050 5525 2 60 Input ~ 0 D1 Text GLabel 9050 5625 2 60 Input ~ 0 D0 $Comp L GND #PWR07 U 1 1 5C04D9C7 P 600 1575 F 0 "#PWR07" 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 #PWR08 U 1 1 5C04E709 P 9800 4700 F 0 "#PWR08" H 9800 4450 50 0001 C CNN F 1 "GND" H 9800 4550 50 0000 C CNN F 2 "" H 9800 4700 50 0001 C CNN F 3 "" H 9800 4700 50 0001 C CNN 1 9800 4700 1 0 0 -1 $EndComp Wire Wire Line 9050 4625 9800 4625 Text GLabel 7650 3425 0 60 BiDi ~ 0 VD7 Text GLabel 7650 3525 0 60 BiDi ~ 0 VD6 Text GLabel 7650 3625 0 60 BiDi ~ 0 VD5 Text GLabel 7650 3725 0 60 BiDi ~ 0 VD4 Text GLabel 7650 3825 0 60 BiDi ~ 0 VD3 Text GLabel 7650 3925 0 60 BiDi ~ 0 VD2 Text GLabel 7650 4025 0 60 BiDi ~ 0 VD1 Text GLabel 7650 4125 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 "" H 5100 2250 60 0000 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 5525 0 60 Output ~ 0 VA14 Text GLabel 7500 5625 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 5525 7650 5525 Wire Wire Line 7500 5625 7650 5625 Text GLabel 10400 4450 0 60 Input ~ 0 PHI0 $Comp L Jumper_NO_Small JP2 U 1 1 5C05E5BB P 3775 5775 F 0 "JP2" H 3775 5855 50 0000 C CNN F 1 "PHI0_OUT" H 3785 5715 50 0000 C CNN F 2 "" H 3775 5775 50 0001 C CNN F 3 "" H 3775 5775 50 0001 C CNN 1 3775 5775 1 0 0 -1 $EndComp Wire Wire Line 3575 6000 3575 5775 Connection ~ 3575 6000 Wire Wire Line 3575 5775 3675 5775 Text GLabel 3975 5775 2 60 Output ~ 0 PHI0 Wire Wire Line 3875 5775 3975 5775 $Comp L GND #PWR09 U 1 1 5C0636E6 P 5600 3400 F 0 "#PWR09" 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 5425 0 60 Output ~ 0 G/~A Text GLabel 6250 2150 2 60 Input ~ 0 S/~A Text GLabel 7500 5325 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 4925 0 60 Output ~ 0 CSS Text GLabel 7500 5025 0 60 Output ~ 0 GM0 Text GLabel 7500 5125 0 60 Output ~ 0 GM1 Text GLabel 7500 5225 0 60 Output ~ 0 GM2 Wire Wire Line 7500 4925 7650 4925 Wire Wire Line 7650 5025 7500 5025 Wire Wire Line 7500 5125 7650 5125 Wire Wire Line 7650 5225 7500 5225 Wire Wire Line 7500 5325 7650 5325 Wire Wire Line 7650 5425 7500 5425 $Comp L GND #PWR010 U 1 1 5C06A7C5 P 6625 2325 F 0 "#PWR010" 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 #PWR011 U 1 1 5C06AFB8 P 5600 750 F 0 "#PWR011" 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 "" 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 9050 4725 2 60 Input ~ 0 ~CS_CTRL_EXT Text GLabel 9200 725 2 60 Input ~ 0 ~CS_RAM_EXT Wire Wire Line 9050 725 9200 725 Wire Wire Line 9125 725 9125 825 Wire Wire Line 9125 825 9050 825 Connection ~ 9125 725 Text GLabel 9200 1925 2 60 Input ~ 0 ~CS_RAM_EXT Wire Wire Line 9050 1925 9200 1925 Wire Wire Line 9125 1925 9125 2025 Wire Wire Line 9125 2025 9050 2025 Connection ~ 9125 1925 Text GLabel 7650 4425 0 60 Input ~ 0 ~CS_RAM_EXT Text GLabel 2375 7000 2 60 Input ~ 0 RAM_RW Wire Wire Line 2075 6900 2375 6900 Wire Wire Line 2375 7000 2075 7000 $Comp L 74LS04 U8 U 2 1 5C0AA6EC P 1575 5050 F 0 "U8" H 1770 5165 50 0000 C CNN F 1 "74HCT04" H 1765 4925 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 1575 5050 50 0001 C CNN F 3 "" H 1575 5050 50 0001 C CNN 2 1575 5050 1 0 0 -1 $EndComp $Comp L 74LS04 U8 U 4 1 5C0AA829 P 10450 1125 F 0 "U8" H 10645 1240 50 0000 C CNN F 1 "74HCT04" H 10640 1000 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 10450 1125 50 0001 C CNN F 3 "" H 10450 1125 50 0001 C CNN 4 10450 1125 0 1 1 0 $EndComp $Comp L GND #PWR012 U 1 1 5C0ADFE0 P 10775 975 F 0 "#PWR012" H 10775 725 50 0001 C CNN F 1 "GND" H 10775 825 50 0000 C CNN F 2 "" H 10775 975 50 0001 C CNN F 3 "" H 10775 975 50 0001 C CNN 1 10775 975 1 0 0 -1 $EndComp Wire Wire Line 2075 7150 2225 7150 Wire Wire Line 2225 7150 2225 6900 Connection ~ 2225 6900 Text GLabel 2375 6900 2 60 Input ~ 0 CS_RAM Text GLabel 625 1975 2 60 Output ~ 0 CS_RAM $Comp L GND #PWR013 U 1 1 5C0AFC48 P 550 2050 F 0 "#PWR013" H 550 1800 50 0001 C CNN F 1 "GND" H 550 1900 50 0000 C CNN F 2 "" H 550 2050 50 0001 C CNN F 3 "" H 550 2050 50 0001 C CNN 1 550 2050 1 0 0 -1 $EndComp Wire Wire Line 550 2050 550 1975 Wire Wire Line 550 1975 625 1975 NoConn ~ 10250 4350 $Comp L 74HCT00 U9 U 1 1 5C0B0DF2 P 1425 3050 F 0 "U9" H 1425 3100 50 0000 C CNN F 1 "74HCT00" H 1425 2950 50 0000 C CNN F 2 "" H 1425 3050 50 0001 C CNN F 3 "" H 1425 3050 50 0001 C CNN 1 1425 3050 1 0 0 -1 $EndComp $Comp L 74HCT00 U9 U 2 1 5C0B0E8A P 2850 2475 F 0 "U9" H 2850 2525 50 0000 C CNN F 1 "74HCT00" H 2850 2375 50 0000 C CNN F 2 "" H 2850 2475 50 0001 C CNN F 3 "" H 2850 2475 50 0001 C CNN 2 2850 2475 1 0 0 -1 $EndComp $Comp L 74HCT00 U9 U 3 1 5C0B0F08 P 2825 3525 F 0 "U9" H 2825 3575 50 0000 C CNN F 1 "74HCT00" H 2825 3425 50 0000 C CNN F 2 "" H 2825 3525 50 0001 C CNN F 3 "" H 2825 3525 50 0001 C CNN 3 2825 3525 1 0 0 -1 $EndComp $Comp L 74HCT00 U9 U 4 1 5C0B0F8B P 2325 4075 F 0 "U9" H 2325 4125 50 0000 C CNN F 1 "74HCT00" H 2325 3975 50 0000 C CNN F 2 "" H 2325 4075 50 0001 C CNN F 3 "" H 2325 4075 50 0001 C CNN 4 2325 4075 1 0 0 -1 $EndComp $Comp L 74HCT00 U10 U 1 1 5C0B1035 P 2700 4850 F 0 "U10" H 2700 4900 50 0000 C CNN F 1 "74HCT00" H 2700 4750 50 0000 C CNN F 2 "" H 2700 4850 50 0001 C CNN F 3 "" H 2700 4850 50 0001 C CNN 1 2700 4850 1 0 0 -1 $EndComp $Comp L 74HCT00 U10 U 2 1 5C0B10C6 P 4625 4325 F 0 "U10" H 4625 4375 50 0000 C CNN F 1 "74HCT00" H 4625 4225 50 0000 C CNN F 2 "" H 4625 4325 50 0001 C CNN F 3 "" H 4625 4325 50 0001 C CNN 2 4625 4325 1 0 0 -1 $EndComp $Comp L 74HCT00 U10 U 3 1 5C0B1156 P 4625 3825 F 0 "U10" H 4625 3875 50 0000 C CNN F 1 "74HCT00" H 4625 3725 50 0000 C CNN F 2 "" H 4625 3825 50 0001 C CNN F 3 "" H 4625 3825 50 0001 C CNN 3 4625 3825 1 0 0 -1 $EndComp $Comp L 74HCT00 U10 U 4 1 5C0B11E1 P 5950 4075 F 0 "U10" H 5950 4125 50 0000 C CNN F 1 "74HCT00" H 5950 3975 50 0000 C CNN F 2 "" H 5950 4075 50 0001 C CNN F 3 "" H 5950 4075 50 0001 C CNN 4 5950 4075 1 0 0 -1 $EndComp Text GLabel 975 2375 0 60 Input ~ 0 VDU_BASE Text GLabel 825 2950 0 60 Input ~ 0 A10 Text GLabel 825 3150 0 60 Input ~ 0 A11 Text GLabel 825 3975 0 60 Input ~ 0 PHI2 Text GLabel 825 4175 0 60 Input ~ 0 R/~W Wire Wire Line 2025 3050 2175 3050 Wire Wire Line 2250 2575 2175 2575 Wire Wire Line 2175 2575 2175 2775 Wire Wire Line 2175 2775 3150 2775 Wire Wire Line 3150 2775 3150 3050 Wire Wire Line 3150 3050 3075 3050 Connection ~ 2100 3050 Wire Wire Line 2225 3425 2100 3425 Wire Wire Line 2100 3425 2100 3050 Wire Wire Line 1950 3625 2225 3625 Wire Wire Line 1950 3625 1950 2375 Wire Wire Line 1875 2375 2250 2375 Connection ~ 1950 2375 Text GLabel 3575 3525 2 60 Output ~ 0 ~CS_RAM_EXT Text GLabel 3450 2475 2 60 Output ~ 0 ~VDU_CTRL Wire Wire Line 825 3975 1725 3975 Text GLabel 3075 4075 2 60 Output ~ 0 ~VDU_WRITE Wire Wire Line 9800 4625 9800 4700 Wire Wire Line 2025 5050 2100 5050 Wire Wire Line 2100 4650 2025 4650 Wire Wire Line 2100 5050 2100 4950 Wire Wire Line 2100 4750 2100 4650 Text GLabel 3300 4850 2 60 Output ~ 0 ~CS_CTRL_EXT Text GLabel 1125 4650 0 60 Input ~ 0 ~VDU_CTRL Text GLabel 1125 5050 0 60 Input ~ 0 ~VDU_WRITE Wire Wire Line 3425 3525 3575 3525 Wire Wire Line 2925 4075 3075 4075 Wire Wire Line 3000 4075 3000 4325 Connection ~ 3000 4075 Connection ~ 3500 3525 Wire Wire Line 5225 4325 5300 4325 Wire Wire Line 5300 4325 5300 4175 Wire Wire Line 5225 3825 5300 3825 Wire Wire Line 5300 3825 5300 3975 Wire Wire Line 5300 3975 5350 3975 Wire Wire Line 5300 4175 5350 4175 Text GLabel 6625 4075 2 60 Output ~ 0 RAM_RW Wire Wire Line 10450 675 10775 675 $Comp L C C9 U 1 1 5C0C5965 P 6325 7100 F 0 "C9" H 6350 7200 50 0000 L CNN F 1 "100nF" H 6350 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6363 6950 50 0001 C CNN F 3 "" H 6325 7100 50 0001 C CNN 1 6325 7100 1 0 0 -1 $EndComp $Comp L C C10 U 1 1 5C0C59F4 P 6600 7100 F 0 "C10" H 6625 7200 50 0000 L CNN F 1 "100nF" H 6625 7000 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm" H 6638 6950 50 0001 C CNN F 3 "" H 6600 7100 50 0001 C CNN 1 6600 7100 1 0 0 -1 $EndComp Wire Wire Line 6600 7250 6600 7375 Connection ~ 6600 7300 Wire Wire Line 6600 6825 6600 6950 Connection ~ 6600 6900 Wire Wire Line 6325 6900 6325 6950 Connection ~ 6325 6900 Wire Wire Line 6325 7250 6325 7300 Connection ~ 6325 7300 Wire Wire Line 3950 3925 4025 3925 Wire Wire Line 3950 3725 3950 3925 Wire Wire Line 3950 3725 4025 3725 Wire Wire Line 3950 3825 3500 3825 Wire Wire Line 3500 3825 3500 3525 Connection ~ 3950 3825 Wire Wire Line 3950 4425 4025 4425 Wire Wire Line 3950 4225 3950 4425 Wire Wire Line 3950 4225 4025 4225 Wire Wire Line 3000 4325 3950 4325 Connection ~ 3950 4325 Wire Wire Line 6625 4075 6550 4075 NoConn ~ 7650 1025 $Comp L Jumper_NO_Small JP3 U 1 1 5C0D03FF P 9375 4425 F 0 "JP3" H 9375 4505 50 0000 C CNN F 1 "INT_ON_FS" H 9385 4365 50 0000 C CNN F 2 "" H 9375 4425 50 0001 C CNN F 3 "" H 9375 4425 50 0001 C CNN 1 9375 4425 1 0 0 -1 $EndComp Wire Wire Line 9200 4425 9275 4425 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_01x05 J3 U 1 1 5C0D33B4 P 4675 3325 F 0 "J3" H 4675 3625 50 0000 C CNN F 1 "VIDEO" H 4675 3025 50 0000 C CNN F 2 "" H 4675 3325 50 0001 C CNN F 3 "" H 4675 3325 50 0001 C CNN 1 4675 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 $Comp L PN2222A Q2 U 1 1 5C0D8044 P 6200 5600 F 0 "Q2" H 6400 5675 50 0000 L CNN F 1 "PN2222A" H 6400 5600 50 0000 L CNN F 2 "TO_SOT_Packages_THT:TO-92_Molded_Narrow" H 6400 5525 50 0001 L CIN F 3 "" H 6200 5600 50 0001 L CNN 1 6200 5600 0 1 1 0 $EndComp $Comp L PN2222A Q1 U 1 1 5C0D851A P 5400 5750 F 0 "Q1" H 5600 5825 50 0000 L CNN F 1 "PN2222A" H 5600 5750 50 0000 L CNN F 2 "TO_SOT_Packages_THT:TO-92_Molded_Narrow" H 5600 5675 50 0001 L CIN F 3 "" H 5400 5750 50 0001 L CNN 1 5400 5750 0 1 1 0 $EndComp Text GLabel 6650 5325 2 60 Input ~ 0 Y $Comp L R R5 U 1 1 5C0D8B35 P 6425 5325 F 0 "R5" V 6505 5325 50 0000 C CNN F 1 "1k" V 6425 5325 50 0000 C CNN F 2 "" V 6355 5325 50 0001 C CNN F 3 "" H 6425 5325 50 0001 C CNN 1 6425 5325 0 1 1 0 $EndComp Wire Wire Line 6575 5325 6650 5325 Wire Wire Line 6125 5325 6275 5325 Wire Wire Line 6200 5325 6200 5400 Wire Wire Line 6000 5700 5925 5700 Wire Wire Line 5925 5700 5925 5775 $Comp L R R3 U 1 1 5C0D9C99 P 5925 5925 F 0 "R3" V 6005 5925 50 0000 C CNN F 1 "180" V 5925 5925 50 0000 C CNN F 2 "" V 5855 5925 50 0001 C CNN F 3 "" H 5925 5925 50 0001 C CNN 1 5925 5925 1 0 0 -1 $EndComp $Comp L GND #PWR014 U 1 1 5C0DA1BF P 5925 6150 F 0 "#PWR014" H 5925 5900 50 0001 C CNN F 1 "GND" H 5925 6000 50 0000 C CNN F 2 "" H 5925 6150 50 0001 C CNN F 3 "" H 5925 6150 50 0001 C CNN 1 5925 6150 1 0 0 -1 $EndComp Wire Wire Line 5925 6150 5925 6075 $Comp L R R4 U 1 1 5C0DAB87 P 5975 5325 F 0 "R4" V 6055 5325 50 0000 C CNN F 1 "6.2k" V 5975 5325 50 0000 C CNN F 2 "" V 5905 5325 50 0001 C CNN F 3 "" H 5975 5325 50 0001 C CNN 1 5975 5325 0 1 1 0 $EndComp $Comp L R R2 U 1 1 5C0DACBD P 5750 5100 F 0 "R2" V 5830 5100 50 0000 C CNN F 1 "1k" V 5750 5100 50 0000 C CNN F 2 "" V 5680 5100 50 0001 C CNN F 3 "" H 5750 5100 50 0001 C CNN 1 5750 5100 -1 0 0 1 $EndComp Connection ~ 6200 5325 $Comp L VCC #PWR015 U 1 1 5C0DBAFF P 5750 4875 F 0 "#PWR015" H 5750 4725 50 0001 C CNN F 1 "VCC" H 5750 5025 50 0000 C CNN F 2 "" H 5750 4875 50 0001 C CNN F 3 "" H 5750 4875 50 0001 C CNN 1 5750 4875 1 0 0 -1 $EndComp Wire Wire Line 5750 4875 5750 4950 Wire Wire Line 6400 5700 6450 5700 Wire Wire Line 6450 5700 6450 5475 Wire Wire Line 6450 5475 5400 5475 Wire Wire Line 5750 5250 5750 5475 Wire Wire Line 5750 5325 5825 5325 Connection ~ 5750 5325 Wire Wire Line 5400 5475 5400 5550 Connection ~ 5750 5475 $Comp L VCC #PWR016 U 1 1 5C0DD54D P 5675 5775 F 0 "#PWR016" H 5675 5625 50 0001 C CNN F 1 "VCC" H 5675 5925 50 0000 C CNN F 2 "" H 5675 5775 50 0001 C CNN F 3 "" H 5675 5775 50 0001 C CNN 1 5675 5775 1 0 0 -1 $EndComp Wire Wire Line 5600 5850 5675 5850 Wire Wire Line 5675 5850 5675 5775 $Comp L R R1 U 1 1 5C0DDB64 P 5125 6075 F 0 "R1" V 5205 6075 50 0000 C CNN F 1 "1k" V 5125 6075 50 0000 C CNN F 2 "" V 5055 6075 50 0001 C CNN F 3 "" H 5125 6075 50 0001 C CNN 1 5125 6075 -1 0 0 1 $EndComp Wire Wire Line 5125 5925 5125 5850 Wire Wire Line 5050 5850 5200 5850 Wire Wire Line 5125 6225 5125 6300 $Comp L GND #PWR017 U 1 1 5C0DE051 P 5125 6300 F 0 "#PWR017" H 5125 6050 50 0001 C CNN F 1 "GND" H 5125 6150 50 0000 C CNN F 2 "" H 5125 6300 50 0001 C CNN F 3 "" H 5125 6300 50 0001 C CNN 1 5125 6300 1 0 0 -1 $EndComp $Comp L RCA_PLUG J8 U 1 1 5C0DE558 P 4900 5850 F 0 "J8" H 4910 5970 50 0000 C CNN F 1 "RCA_PLUG" V 5015 5850 50 0000 C CNN F 2 "" H 4900 5850 50 0001 C CNN F 3 "" H 4900 5850 50 0001 C CNN 1 4900 5850 -1 0 0 1 $EndComp Connection ~ 5125 5850 $Comp L GND #PWR018 U 1 1 5C0DF101 P 4625 5725 F 0 "#PWR018" H 4625 5475 50 0001 C CNN F 1 "GND" H 4625 5575 50 0000 C CNN F 2 "" H 4625 5725 50 0001 C CNN F 3 "" H 4625 5725 50 0001 C CNN 1 4625 5725 1 0 0 -1 $EndComp Wire Wire Line 4625 5725 4625 5575 Wire Wire Line 4625 5575 4900 5575 Wire Wire Line 4900 5575 4900 5650 $EndSCHEMATC