EESchema Schematic File Version 2  date 28/05/2011 21:38:53
LIBS:device
LIBS:power
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:74xx
LIBS:special
LIBS:interface
LIBS:contrib
LIBS:valves
LIBS:dips-s
LIBS:flashmemory
LIBS:ramcard-cache
EELAYER 25  0
EELAYER END
$Descr User 10000 6000
encoding utf-8
Sheet 1 1
Title "Ramcard"
Date "28 may 2011"
Rev ""
Comp "Ram7"
Comment1 "Retro analyzed from PCB"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	3050 4750 3050 4350
Wire Wire Line
	4300 4750 4750 4750
Wire Wire Line
	3650 3150 3900 3150
Wire Wire Line
	4250 4750 4250 4650
Wire Wire Line
	4550 4650 4750 4650
Connection ~ 3650 2500
Wire Wire Line
	3300 2500 4300 2500
Wire Wire Line
	1550 2050 1550 2000
Wire Wire Line
	1550 2000 1350 2000
Connection ~ 1650 2550
Wire Wire Line
	1650 2750 1650 2550
Wire Wire Line
	7450 3050 7250 3050
Wire Notes Line
	450  2900 3250 2900
Wire Wire Line
	550  2350 750  2350
Connection ~ 3050 4550
Wire Notes Line
	6550 3450 6550 500 
Connection ~ 6800 4000
Connection ~ 4000 2100
Wire Wire Line
	4000 2050 4000 2100
Wire Wire Line
	5950 2700 6100 2700
Wire Wire Line
	5950 2600 6100 2600
Wire Wire Line
	5950 2500 6100 2500
Wire Wire Line
	5950 2400 6100 2400
Wire Wire Line
	5950 2300 6100 2300
Wire Wire Line
	5950 2200 6100 2200
Wire Bus Line
	900  5050 900  4350
Wire Wire Line
	7450 2650 7250 2650
Wire Wire Line
	7450 2550 7250 2550
Wire Wire Line
	7450 2450 7250 2450
Wire Wire Line
	7450 2350 7250 2350
Wire Wire Line
	7450 2250 7250 2250
Wire Wire Line
	7450 2150 7250 2150
Wire Wire Line
	7450 2050 7250 2050
Wire Wire Line
	7450 1950 7250 1950
Wire Wire Line
	7450 1850 7250 1850
Wire Wire Line
	7450 1750 7250 1750
Wire Wire Line
	7450 1650 7250 1650
Wire Wire Line
	7450 1550 7250 1550
Wire Wire Line
	7450 1450 7250 1450
Wire Wire Line
	7450 1350 7250 1350
Wire Wire Line
	7450 1250 7250 1250
Wire Wire Line
	7450 1150 7250 1150
Wire Wire Line
	7450 1050 7250 1050
Wire Wire Line
	7450 950  7250 950 
Wire Wire Line
	7450 850  7250 850 
Wire Bus Line
	6300 1600 6300 900 
Wire Wire Line
	5950 1600 6100 1600
Wire Wire Line
	5950 1400 6100 1400
Wire Wire Line
	5950 1200 6100 1200
Wire Wire Line
	5950 1000 6100 1000
Wire Wire Line
	5950 1900 6250 1900
Wire Wire Line
	5950 1700 6250 1700
Wire Wire Line
	5150 2000 4850 2000
Wire Wire Line
	4850 1900 5150 1900
Wire Wire Line
	5150 1800 4850 1800
Wire Bus Line
	4850 2000 4850 1700
Wire Wire Line
	8150 600  8150 700 
Wire Wire Line
	8850 1550 9150 1550
Wire Wire Line
	8850 1450 9150 1450
Wire Wire Line
	8850 1350 9150 1350
Wire Wire Line
	8850 1250 9150 1250
Wire Wire Line
	8850 1150 9150 1150
Wire Wire Line
	8850 1050 9150 1050
Wire Wire Line
	8850 950  9150 950 
Wire Wire Line
	8850 850  9150 850 
Connection ~ 2650 5050
Connection ~ 2650 4950
Connection ~ 2650 4850
Connection ~ 2650 4750
Connection ~ 2650 4650
Connection ~ 2650 4550
Connection ~ 2650 4450
Connection ~ 2650 4350
Wire Wire Line
	1050 5050 900  5050
Wire Wire Line
	1050 4950 900  4950
Wire Wire Line
	1050 4850 900  4850
Wire Wire Line
	1050 4750 900  4750
Wire Wire Line
	1050 4650 900  4650
Wire Wire Line
	1050 4550 900  4550
Wire Wire Line
	1050 4450 900  4450
Wire Wire Line
	1050 4350 900  4350
Wire Wire Line
	800  1100 1050 1100
Wire Wire Line
	1050 1000 800  1000
Wire Wire Line
	800  900  1050 900 
Wire Wire Line
	3050 4550 2900 4550
Wire Notes Line
	9400 4300 4550 4300
Wire Notes Line
	9400 4300 9400 3450
Wire Notes Line
	9400 3450 4550 3450
Wire Wire Line
	8600 3900 8750 3900
Wire Wire Line
	7150 2850 7450 2850
Wire Wire Line
	5200 3900 5300 3900
Wire Wire Line
	950  1500 1050 1500
Wire Wire Line
	2550 3900 2650 3900
Wire Wire Line
	5950 3100 6100 3100
Wire Wire Line
	5950 2900 6100 2900
Wire Wire Line
	5150 800  4950 800 
Wire Wire Line
	5150 2500 4950 2500
Wire Wire Line
	5150 2700 4950 2700
Wire Wire Line
	5150 3000 4950 3000
Wire Wire Line
	800  3350 1000 3350
Wire Wire Line
	4900 3300 4900 3200
Wire Wire Line
	4900 3200 5150 3200
Wire Wire Line
	800  3150 1000 3150
Wire Wire Line
	900  5250 1050 5250
Wire Wire Line
	2450 4650 2650 4650
Wire Wire Line
	2450 4550 2650 4550
Wire Wire Line
	2450 4450 2650 4450
Wire Wire Line
	2450 4350 2650 4350
Wire Wire Line
	2450 4950 2650 4950
Wire Wire Line
	2450 4750 2650 4750
Wire Wire Line
	3800 1000 3800 850 
Wire Wire Line
	3950 1600 3550 1600
Wire Wire Line
	2250 1500 2400 1500
Wire Wire Line
	2250 1300 2400 1300
Wire Wire Line
	2250 1100 2400 1100
Wire Wire Line
	2250 900  2400 900 
Connection ~ 3550 1400
Connection ~ 3550 1200
Connection ~ 3550 1000
Wire Wire Line
	2800 1600 3150 1600
Wire Wire Line
	2800 1400 3150 1400
Wire Wire Line
	2800 1200 3150 1200
Wire Wire Line
	2800 1000 3150 1000
Wire Wire Line
	2800 900  3150 900 
Wire Wire Line
	2800 1100 3150 1100
Wire Wire Line
	2800 1300 3150 1300
Wire Wire Line
	2800 1500 3150 1500
Connection ~ 3550 1100
Connection ~ 3550 1300
Wire Wire Line
	3550 1600 3550 900 
Connection ~ 3550 1500
Wire Wire Line
	2250 1000 2400 1000
Wire Wire Line
	2250 1200 2400 1200
Wire Wire Line
	2250 1400 2400 1400
Wire Wire Line
	2250 1600 2400 1600
Wire Wire Line
	950  1400 1050 1400
Wire Wire Line
	3800 1500 3800 1600
Connection ~ 3800 1600
Wire Wire Line
	7150 2950 7450 2950
Wire Wire Line
	2450 4850 2650 4850
Wire Wire Line
	2450 5050 2650 5050
Wire Wire Line
	1050 5350 900  5350
Wire Wire Line
	900  5350 900  5400
Wire Notes Line
	4450 4050 350  4050
Wire Wire Line
	4900 2300 5150 2300
Wire Wire Line
	4900 2400 5150 2400
Wire Wire Line
	5150 3100 4950 3100
Wire Wire Line
	5150 2800 4950 2800
Wire Wire Line
	5150 2600 4950 2600
Wire Wire Line
	5150 2200 4950 2200
Wire Wire Line
	5950 800  6100 800 
Wire Wire Line
	5950 3000 6100 3000
Wire Wire Line
	5950 3200 6100 3200
Wire Wire Line
	2550 3700 2650 3700
Wire Wire Line
	3850 3800 4050 3800
Wire Wire Line
	950  1600 1050 1600
Wire Wire Line
	6500 3800 6800 3800
Wire Wire Line
	8000 3900 8200 3900
Wire Wire Line
	5200 3700 5300 3700
Wire Notes Line
	450  1900 4550 1900
Wire Bus Line
	800  1100 800  900 
Wire Bus Line
	9150 1700 9150 600 
Wire Wire Line
	4950 2900 5150 2900
Wire Wire Line
	8150 3200 8150 3300
Wire Wire Line
	5150 1700 4850 1700
Wire Bus Line
	6250 2000 6250 1700
Wire Wire Line
	5950 1800 6250 1800
Wire Wire Line
	5950 2000 6250 2000
Wire Wire Line
	5950 900  6100 900 
Wire Wire Line
	5950 1100 6100 1100
Wire Wire Line
	5950 1300 6100 1300
Wire Wire Line
	5950 1500 6100 1500
Wire Wire Line
	5150 900  5000 900 
Wire Wire Line
	5150 1000 5000 1000
Wire Wire Line
	5150 1100 5000 1100
Wire Wire Line
	5150 1200 5000 1200
Wire Wire Line
	5150 1300 5000 1300
Wire Wire Line
	5150 1400 5000 1400
Wire Wire Line
	5150 1500 5000 1500
Wire Wire Line
	5150 1600 5000 1600
Wire Bus Line
	4850 1600 4850 900 
Wire Wire Line
	4950 2100 5150 2100
Wire Wire Line
	5950 2800 6150 2800
Wire Wire Line
	5950 2100 6100 2100
Wire Wire Line
	4000 2650 4000 2500
Connection ~ 4000 2500
Wire Wire Line
	550  2550 750  2550
Wire Wire Line
	1150 2150 1150 2550
Wire Wire Line
	1150 2550 1650 2550
Wire Wire Line
	6800 3800 6800 4000
Connection ~ 1150 2350
Connection ~ 1350 2550
Connection ~ 3050 3600
Wire Wire Line
	1350 2000 1350 2050
Wire Wire Line
	3300 2100 4300 2100
Connection ~ 3650 2100
Wire Notes Line
	4550 4300 4550 500 
Wire Wire Line
	4750 4550 4750 4350
Wire Wire Line
	2200 3250 2450 3250
Wire Wire Line
	2300 3050 2450 3050
Wire Wire Line
	4750 4350 3050 4350
Text Label 2300 3050 0    60   ~ 0
A13
$Comp
L 74LS00 U1
U 4 1 4CA8A6F2
P 3650 4650
F 0 "U1" H 3650 4700 60  0000 C CNN
F 1 "74LS00" H 3650 4550 60  0000 C CNN
	4    3650 4650
	1    0    0    -1  
$EndComp
Text GLabel 4550 4650 0    60   Output ~ 0
_A3
$Comp
L CONN_3 K1
U 1 1 4DE12670
P 5100 4650
F 0 "K1" V 5050 4650 50  0000 C CNN
F 1 "CONN_3" V 5150 4650 40  0000 C CNN
	1    5100 4650
	1    0    0    -1  
$EndComp
Text Label 7250 3050 0    60   ~ 0
CE
Text Label 6650 3800 0    60   ~ 0
CE
$Comp
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U 1 1 4DDEB8E8
P 8150 600
F 0 "#PWR01" H 8150 700 30  0001 C CNN
F 1 "VCC" H 8150 700 30  0000 C CNN
	1    8150 600 
	1    0    0    -1  
$EndComp
Text Label 7150 2850 0    60   ~ 0
RD
Text Label 6100 2300 0    60   ~ 0
RD
$Comp
L GND #PWR02
U 1 1 4DC04C38
P 1550 2050
F 0 "#PWR02" H 1550 2050 30  0001 C CNN
F 1 "GND" H 1550 1980 30  0001 C CNN
	1    1550 2050
	1    0    0    -1  
$EndComp
Text Label 2650 4750 0    60   ~ 0
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$Comp
L DIODE D11
U 1 1 4DBD84F1
P 950 2550
F 0 "D11" H 950 2650 40  0000 C CNN
F 1 "DIODE" H 950 2450 40  0000 C CNN
	1    950  2550
	1    0    0    1   
$EndComp
$Comp
L DIODE D2
U 1 1 4DBD84E4
P 950 2350
F 0 "D2" H 950 2450 40  0000 C CNN
F 1 "DIODE" H 950 2250 40  0000 C CNN
	1    950  2350
	1    0    0    1   
$EndComp
$Comp
L DIODE D1
U 1 1 4DBD84DD
P 950 2150
F 0 "D1" H 950 2250 40  0000 C CNN
F 1 "DIODE" H 950 2050 40  0000 C CNN
	1    950  2150
	1    0    0    1   
$EndComp
Text Label 7250 1750 0    60   ~ 0
IS2
Text Label 7250 2150 0    60   ~ 0
IS0
Text Label 7250 1650 0    60   ~ 0
IS1
$Comp
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U 3 1 4DBD59C0
P 2250 2650
F 0 "U1" H 2250 2700 60  0000 C CNN
F 1 "74LS00" H 2250 2550 60  0000 C CNN
	3    2250 2650
	1    0    0    1   
$EndComp
Text Label 550  2550 0    60   ~ 0
AC1
Text Label 2900 4550 0    60   ~ 0
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$Comp
L GND #PWR03
U 1 1 4DBD3AB8
P 4000 2650
F 0 "#PWR03" H 4000 2650 30  0001 C CNN
F 1 "GND" H 4000 2580 30  0001 C CNN
	1    4000 2650
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR04
U 1 1 4DBD3AB1
P 4000 2050
F 0 "#PWR04" H 4000 2150 30  0001 C CNN
F 1 "VCC" H 4000 2150 30  0000 C CNN
	1    4000 2050
	1    0    0    -1  
$EndComp
Text GLabel 6100 2100 2    60   Output ~ 0
MREQ
NoConn ~ 6100 2700
NoConn ~ 6100 2600
NoConn ~ 6100 2500
NoConn ~ 6100 2400
NoConn ~ 6100 2200
Text GLabel 6150 2800 2    60   Output ~ 0
ROMEN
Text Label 550  2350 0    60   ~ 0
AC0
Text Label 7250 1850 0    60   ~ 0
AX17
Text Label 7250 1950 0    60   ~ 0
AX18
Text Label 900  1100 0    60   ~ 0
IS2
Text Label 900  1000 0    60   ~ 0
IS1
Text Label 900  900  0    60   ~ 0
IS0
Text Label 2650 5050 0    60   ~ 0
AC1
Text Label 2650 4350 0    60   ~ 0
AC0
Text Label 2650 4950 0    60   ~ 0
AX17
Text Label 2650 4450 0    60   ~ 0
AX18
Text Label 2650 4550 0    60   ~ 0
ACFG
Text Label 2650 4850 0    60   ~ 0
IS2
Text Label 2650 4650 0    60   ~ 0
IS0
Text Label 2550 3700 0    60   ~ 0
A15
Text Label 2550 3900 0    60   ~ 0
A14
$Comp
L VCC #PWR05
U 1 1 4DBBEA82
P 4950 2100
F 0 "#PWR05" H 4950 2200 30  0001 C CNN
F 1 "VCC" H 4950 2200 30  0000 C CNN
	1    4950 2100
	0    -1   -1   0   
$EndComp
Text Label 7250 2650 0    60   ~ 0
A13
Text Label 7250 2350 0    60   ~ 0
A12
Text Label 7250 2450 0    60   ~ 0
A11
Text Label 7250 2550 0    60   ~ 0
A10
Text Label 7250 2250 0    60   ~ 0
A9
Text Label 7250 2050 0    60   ~ 0
A8
Text Label 7250 1550 0    60   ~ 0
A7
Text Label 7250 1450 0    60   ~ 0
A6
Text Label 7250 1350 0    60   ~ 0
A5
Text Label 7250 1250 0    60   ~ 0
A4
Text Label 7250 1150 0    60   ~ 0
A3
Text Label 7250 1050 0    60   ~ 0
A2
Text Label 7250 850  0    60   ~ 0
A1
Text Label 7250 950  0    60   ~ 0
A0
Text Label 5000 900  0    60   ~ 0
A15
Text Label 6100 900  0    60   ~ 0
A14
Text Label 5000 1000 0    60   ~ 0
A13
Text Label 6100 1000 0    60   ~ 0
A12
Text Label 5000 1100 0    60   ~ 0
A11
Text Label 6100 1100 0    60   ~ 0
A10
Text Label 5000 1200 0    60   ~ 0
A9
Text Label 6100 1200 0    60   ~ 0
A8
Text Label 5000 1300 0    60   ~ 0
A7
Text Label 6100 1300 0    60   ~ 0
A6
Text Label 5000 1400 0    60   ~ 0
A5
Text Label 6100 1400 0    60   ~ 0
A4
Text Label 5000 1500 0    60   ~ 0
A3
Text Label 6100 1500 0    60   ~ 0
A2
Text Label 5000 1600 0    60   ~ 0
A1
Text Label 6100 1600 0    60   ~ 0
A0
Text Label 1000 5050 0    60   ~ 0
D7
Text Label 1000 4350 0    60   ~ 0
D6
Text Label 1000 4450 0    60   ~ 0
D5
Text Label 1000 4950 0    60   ~ 0
D4
Text Label 1000 4550 0    60   ~ 0
D3
Text Label 1000 4850 0    60   ~ 0
D2
Text Label 1000 4750 0    60   ~ 0
D1
Text Label 1000 4650 0    60   ~ 0
D0
Entry Wire Line
	6250 2000 6350 1900
Entry Wire Line
	6250 1900 6350 1800
Entry Wire Line
	6250 1800 6350 1700
Entry Wire Line
	6250 1700 6350 1600
Entry Wire Line
	4850 2000 4950 1900
Entry Wire Line
	4850 1900 4950 1800
Entry Wire Line
	4850 1800 4950 1700
Entry Wire Line
	4850 1700 4950 1600
Text Label 4950 1700 0    60   ~ 0
D7
Text Label 4950 1800 0    60   ~ 0
D5
Text Label 4950 1900 0    60   ~ 0
D3
Text Label 4950 2000 0    60   ~ 0
D1
Text Label 6100 1700 0    60   ~ 0
D6
Text Label 6100 1800 0    60   ~ 0
D4
Text Label 6100 1900 0    60   ~ 0
D2
Text Label 6100 2000 0    60   ~ 0
D0
$Comp
L GND #PWR06
U 1 1 4DBBE106
P 8150 3300
F 0 "#PWR06" H 8150 3300 30  0001 C CNN
F 1 "GND" H 8150 3230 30  0001 C CNN
	1    8150 3300
	1    0    0    -1  
$EndComp
Text GLabel 4950 2900 0    60   Input ~ 0
ROMDIS
Entry Wire Line
	9050 1550 9150 1450
Entry Wire Line
	9050 1450 9150 1350
Entry Wire Line
	9050 1350 9150 1250
Entry Wire Line
	9050 1250 9150 1150
Entry Wire Line
	9050 1150 9150 1050
Entry Wire Line
	9050 1050 9150 950 
Entry Wire Line
	9050 950  9150 850 
Entry Wire Line
	9050 850  9150 750 
Text Label 8900 1550 0    60   ~ 0
D7
Text Label 8900 1450 0    60   ~ 0
D6
Text Label 8900 1350 0    60   ~ 0
D5
Text Label 8900 850  0    60   ~ 0
D4
Text Label 8900 1250 0    60   ~ 0
D3
Text Label 8900 950  0    60   ~ 0
D2
Text Label 8900 1150 0    60   ~ 0
D1
Text Label 8900 1050 0    60   ~ 0
D0
Text Notes 1600 5050 0    60   ~ 0
register
Text Notes 1700 1500 1    60   ~ 0
demultiplexer
Entry Wire Line
	800  1100 900  1200
Entry Wire Line
	800  1000 900  1100
Entry Wire Line
	800  900  900  1000
Text GLabel 750  2150 0    60   Input ~ 0
_A3
Text Notes 6400 3550 0    60   ~ 0
Rom active notification
Text GLabel 5200 3700 0    60   Input ~ 0
ROM_ACTIVE
Text GLabel 7150 2950 0    60   Input ~ 0
WR
Text GLabel 8750 3900 2    60   Output ~ 0
ROMDIS
$Comp
L 74LS00 U1
U 2 1 4CA89EED
P 7400 3900
F 0 "U1" H 7400 3950 60  0000 C CNN
F 1 "74LS00" H 7400 3800 60  0000 C CNN
	2    7400 3900
	1    0    0    -1  
$EndComp
Text GLabel 5200 3900 0    60   Input ~ 0
ROMEN
Text GLabel 950  1600 0    60   Input ~ 0
MREQ
Text GLabel 950  1500 0    60   Input ~ 0
ROM_ACC
Text Notes 2950 3550 0    60   ~ 0
Rom access detection
Text GLabel 4050 3800 2    60   Output ~ 0
ROM_ACC
NoConn ~ 6100 2900
NoConn ~ 6100 3000
NoConn ~ 6100 3100
NoConn ~ 6100 3200
NoConn ~ 6100 800 
NoConn ~ 4950 800 
NoConn ~ 4950 2200
NoConn ~ 4950 2500
NoConn ~ 4950 2600
NoConn ~ 4950 2700
NoConn ~ 4950 2800
NoConn ~ 4950 3000
NoConn ~ 4950 3100
Text Notes 4700 550  0    60   ~ 0
\ncpc connector
Text Notes 500  3000 0    60   ~ 0
OUT Decoder
Text GLabel 800  3350 0    60   Input ~ 0
WR
Text GLabel 4900 2400 0    60   Output ~ 0
WR
$Comp
L GND #PWR07
U 1 1 4CA89326
P 4900 3300
F 0 "#PWR07" H 4900 3300 30  0001 C CNN
F 1 "GND" H 4900 3230 30  0001 C CNN
	1    4900 3300
	1    0    0    -1  
$EndComp
Text GLabel 4900 2300 0    60   Output ~ 0
IORQ
Text GLabel 800  3150 0    60   Input ~ 0
IORQ
$Comp
L 74LS32 U3
U 1 1 4CA89162
P 1600 3250
F 0 "U3" H 1600 3300 60  0000 C CNN
F 1 "74LS32" H 1600 3200 60  0000 C CNN
	1    1600 3250
	1    0    0    -1  
$EndComp
Text GLabel 3900 3150 2    60   Output ~ 0
ROMSEL
Text GLabel 900  5250 0    60   Input ~ 0
ROMSEL
$Comp
L 74LS32 U3
U 4 1 4CA89099
P 3050 3150
F 0 "U3" H 3050 3200 60  0000 C CNN
F 1 "74LS32" H 3050 3100 60  0000 C CNN
	4    3050 3150
	1    0    0    1   
$EndComp
$Comp
L GND #PWR08
U 1 1 4CA88AFC
P 900 5400
F 0 "#PWR08" H 900 5400 30  0001 C CNN
F 1 "GND" H 900 5330 30  0001 C CNN
	1    900  5400
	1    0    0    -1  
$EndComp
Text Notes 1150 4200 0    60   ~ 0
Current ROM number storage
Text Notes 600  2000 0    60   ~ 0
comparator
$Comp
L VCC #PWR09
U 1 1 4CA88282
P 3800 850
F 0 "#PWR09" H 3800 950 30  0001 C CNN
F 1 "VCC" H 3800 950 30  0000 C CNN
	1    3800 850 
	1    0    0    -1  
$EndComp
Text GLabel 3950 1600 2    60   Output ~ 0
ROM_ACTIVE
Text GLabel 2850 2650 2    60   Output ~ 0
MATCH
Text GLabel 950  1400 0    60   Input ~ 0
MATCH
$Comp
L 74LS32 U3
U 3 1 4CA87CE5
P 5900 3800
F 0 "U3" H 5900 3850 60  0000 C CNN
F 1 "74LS32" H 5900 3750 60  0000 C CNN
	3    5900 3800
	1    0    0    1   
$EndComp
Text Notes 1800 650  0    60   ~ 0
Individual ROM selection
$Comp
L SRAM_512KO U6
U 1 1 4CA871FB
P 8150 1950
F 0 "U6" H 8250 3150 70  0000 L CNN
F 1 "SRAM_512KO" H 8250 750 70  0000 L CNN
	1    8150 1950
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 4CA87152
P 4300 2300
F 0 "C4" H 4350 2400 50  0000 L CNN
F 1 "C" H 4350 2200 50  0000 L CNN
	1    4300 2300
	1    0    0    -1  
$EndComp
$Comp
L C C3
U 1 1 4CA87151
P 4000 2300
F 0 "C3" H 4050 2400 50  0000 L CNN
F 1 "C" H 4050 2200 50  0000 L CNN
	1    4000 2300
	1    0    0    -1  
$EndComp
$Comp
L CP1 C5
U 1 1 4CA87146
P 3650 2300
F 0 "C5" H 3700 2400 50  0000 L CNN
F 1 "CP1" H 3700 2200 50  0000 L CNN
	1    3650 2300
	1    0    0    -1  
$EndComp
$Comp
L CONN_25X2 P1
U 1 1 4CA8712F
P 5550 2000
F 0 "P1" H 5550 3300 60  0000 C CNN
F 1 "CONN_25X2" V 5550 2000 50  0000 C CNN
	1    5550 2000
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 4CA870EF
P 3300 2300
F 0 "C2" H 3350 2400 50  0000 L CNN
F 1 "C" H 3350 2200 50  0000 L CNN
	1    3300 2300
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 4CA870D9
P 1350 2300
F 0 "R2" V 1430 2300 50  0000 C CNN
F 1 "10KR" V 1350 2300 50  0000 C CNN
	1    1350 2300
	-1   0    0    1   
$EndComp
$Comp
L R R8
U 1 1 4CA870C2
P 3800 1250
F 0 "R8" V 3880 1250 50  0000 C CNN
F 1 "R" V 3800 1250 50  0000 C CNN
	1    3800 1250
	1    0    0    -1  
$EndComp
$Comp
L DIODE D13
U 1 1 4CA870AA
P 8400 3900
F 0 "D13" H 8400 4000 40  0000 C CNN
F 1 "DIODE" H 8400 3800 40  0000 C CNN
	1    8400 3900
	1    0    0    -1  
$EndComp
$Comp
L DIODE D10
U 1 1 4CA8709A
P 3350 1600
F 0 "D10" H 3350 1700 40  0000 C CNN
F 1 "DIODE" H 3350 1500 40  0000 C CNN
	1    3350 1600
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D9
U 1 1 4CA87098
P 3350 1500
F 0 "D9" H 3350 1600 40  0000 C CNN
F 1 "DIODE" H 3350 1400 40  0000 C CNN
	1    3350 1500
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D8
U 1 1 4CA87095
P 3350 1400
F 0 "D8" H 3350 1500 40  0000 C CNN
F 1 "DIODE" H 3350 1300 40  0000 C CNN
	1    3350 1400
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D7
U 1 1 4CA87093
P 3350 1300
F 0 "D7" H 3350 1400 40  0000 C CNN
F 1 "DIODE" H 3350 1200 40  0000 C CNN
	1    3350 1300
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D6
U 1 1 4CA87092
P 3350 1200
F 0 "D6" H 3350 1300 40  0000 C CNN
F 1 "DIODE" H 3350 1100 40  0000 C CNN
	1    3350 1200
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D5
U 1 1 4CA87090
P 3350 1100
F 0 "D5" H 3350 1200 40  0000 C CNN
F 1 "DIODE" H 3350 1000 40  0000 C CNN
	1    3350 1100
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D4
U 1 1 4CA8708D
P 3350 1000
F 0 "D4" H 3350 1100 40  0000 C CNN
F 1 "DIODE" H 3350 900 40  0000 C CNN
	1    3350 1000
	-1   0    0    -1  
$EndComp
$Comp
L DIODE D3
U 1 1 4CA87086
P 3350 900
F 0 "D3" H 3350 1000 40  0000 C CNN
F 1 "DIODE" H 3350 800 40  0000 C CNN
	1    3350 900 
	-1   0    0    -1  
$EndComp
$Comp
L DIPS_08 SW_ROMEN1
U 1 1 4CA8706E
P 2600 1250
F 0 "SW_ROMEN1" V 2150 1250 60  0000 C CNN
F 1 "DIPS_08" V 3050 1250 60  0000 C CNN
	1    2600 1250
	0    1    1    0   
$EndComp
$Comp
L 74LS374 U4
U 1 1 4CA86E68
P 1750 4850
F 0 "U4" H 1750 4850 60  0000 C CNN
F 1 "74LS374" H 1800 4500 60  0000 C CNN
	1    1750 4850
	1    0    0    -1  
$EndComp
$Comp
L 74LS00 U1
U 1 1 4CA86E52
P 3250 3800
F 0 "U1" H 3250 3850 60  0000 C CNN
F 1 "74LS00" H 3250 3700 60  0000 C CNN
	1    3250 3800
	1    0    0    -1  
$EndComp
$Comp
L 74LS138 U2
U 1 1 4CA86E2A
P 1650 1250
F 0 "U2" H 1750 1750 60  0000 C CNN
F 1 "74LS138" H 1800 701 60  0000 C CNN
	1    1650 1250
	1    0    0    -1  
$EndComp
$EndSCHEMATC