EESchema Schematic File Version 2
LIBS:power
LIBS:device
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:myOpAmps
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 2
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Sheet
S 3600 2375 1200 1125
U 5946A580
F0 "fourStages1" 60
F1 "fourStages1.sch" 60
F2 "LED_NEG_3" I L 3600 3000 60 
F3 "LED_NEG_1" I L 3600 2600 60 
F4 "LED_NEG_4" I L 3600 3200 60 
F5 "LED_NEG_2" I L 3600 2800 60 
$EndSheet
$Comp
L BARREL_JACK CON?
U 1 1 59468F94
P 1900 1400
F 0 "CON?" H 1900 1650 50  0000 C CNN
F 1 "BARREL_JACK" H 1900 1200 50  0000 C CNN
F 2 "" H 1900 1400 50  0000 C CNN
F 3 "" H 1900 1400 50  0000 C CNN
	1    1900 1400
	1    0    0    -1  
$EndComp
Text GLabel 2725 1300 2    60   Output ~ 0
Vcc
Wire Wire Line
	2200 1300 2725 1300
$Comp
L PWR_FLAG #FLG?
U 1 1 5946963E
P 2350 1175
F 0 "#FLG?" H 2350 1270 50  0001 C CNN
F 1 "PWR_FLAG" H 2350 1355 50  0000 C CNN
F 2 "" H 2350 1175 50  0000 C CNN
F 3 "" H 2350 1175 50  0000 C CNN
	1    2350 1175
	1    0    0    -1  
$EndComp
Wire Wire Line
	2350 1175 2350 1300
Connection ~ 2350 1300
$Comp
L GND #PWR?
U 1 1 594697AB
P 2700 1625
F 0 "#PWR?" H 2700 1375 50  0001 C CNN
F 1 "GND" H 2700 1475 50  0000 C CNN
F 2 "" H 2700 1625 50  0000 C CNN
F 3 "" H 2700 1625 50  0000 C CNN
	1    2700 1625
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 1500 2700 1500
Wire Wire Line
	2700 1500 2700 1625
Wire Wire Line
	2200 1400 2350 1400
Wire Wire Line
	2350 1400 2350 1600
Connection ~ 2350 1500
$Comp
L PWR_FLAG #FLG?
U 1 1 59469875
P 2350 1600
F 0 "#FLG?" H 2350 1695 50  0001 C CNN
F 1 "PWR_FLAG" H 2350 1780 50  0000 C CNN
F 2 "" H 2350 1600 50  0000 C CNN
F 3 "" H 2350 1600 50  0000 C CNN
	1    2350 1600
	-1   0    0    1   
$EndComp
$Comp
L R R?
U 1 1 5946A551
P 6425 1150
F 0 "R?" V 6505 1150 50  0000 C CNN
F 1 "160k" V 6425 1150 50  0000 C CNN
F 2 "" V 6355 1150 50  0000 C CNN
F 3 "" H 6425 1150 50  0000 C CNN
	1    6425 1150
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X03 P?
U 1 1 5946AAD6
P 7900 1250
F 0 "P?" H 7900 1450 50  0000 C CNN
F 1 "CONN_01X03" V 8000 1250 50  0000 C CNN
F 2 "" H 7900 1250 50  0000 C CNN
F 3 "" H 7900 1250 50  0000 C CNN
	1    7900 1250
	1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 5946AB9F
P 6425 1575
F 0 "R?" V 6505 1575 50  0000 C CNN
F 1 "1.8k" V 6425 1575 50  0000 C CNN
F 2 "" V 6355 1575 50  0000 C CNN
F 3 "" H 6425 1575 50  0000 C CNN
	1    6425 1575
	1    0    0    -1  
$EndComp
$Comp
L CONN_01X03 P?
U 1 1 5946AC97
P 8250 1250
F 0 "P?" H 8250 1450 50  0000 C CNN
F 1 "CONN_01X03" V 8350 1250 50  0000 C CNN
F 2 "" H 8250 1250 50  0000 C CNN
F 3 "" H 8250 1250 50  0000 C CNN
	1    8250 1250
	-1   0    0    -1  
$EndComp
Text GLabel 8725 1250 2    60   Output ~ 0
VSIG
Wire Wire Line
	8725 1250 8450 1250
Wire Wire Line
	8450 1150 8575 1150
Wire Wire Line
	8575 1150 8575 1350
Connection ~ 8575 1250
Wire Wire Line
	8575 1350 8450 1350
$EndSCHEMATC