<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="100" y2="0" width="0" layer="20"/>
<wire x1="100" y1="0" x2="100" y2="80" width="0" layer="20"/>
<wire x1="100" y1="80" x2="0" y2="80" width="0" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="0" width="0" layer="20"/>
<text>5
4</text>
<text>5
4</text>
<text>SSK_FA V5, by florian anwander, © 07-08/2023 - 12/2024;
adopted from SSK_2014_V11 by Scott Rider.
http://www.cs80.com/SSK/</text>
<text>Top</text>
<text>Bottom</text>
</plain>
<libraries>
<library name="resistor">
<packages>
<package name="C025-025X050">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 2.5 x 5 mm</description>
</package>
<package name="E5-8,5">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5.08 mm, diameter 8.5 mm</description>
</package>
<package name="E2,5-5">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.54 mm, diameter 5 mm</description>
</package>
<package name="0207/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 7.5 mm</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
</packages>
</library>
<library name="linear">
<packages>
<package name="TO220H">
<description>&lt;b&gt;TO-220&lt;/b&gt;</description>
</package>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="TO92">
<description>&lt;b&gt;TO-92&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="s2m">
<packages>
<package name="DIL06">
</package>
<package name="DIL14N">
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="DO35-7">
<description>&lt;B&gt;DIODE&lt;/B&gt;&lt;p&gt;
diameter 2 mm, horizontal, grid 7.62 mm</description>
</package>
<package name="D-5">
<description>&lt;b&gt;DIODE&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="pinhead">
<packages>
<package name="1X02">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X06">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X07">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X10">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X04">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="1X01">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="resistor-sil">
<packages>
<package name="SIL8">
<description>&lt;b&gt;Single In Line&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="optocoupler">
<packages>
<package name="DIL04">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="led">
<packages>
<package name="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
</packages>
</library>
<library name="ArduinoNanoV30_lgdDrills_noHoles">
<packages>
<package name="ARDUINO_NANO">
<description>&lt;b&gt;Arduino Nano V3.0&lt;/b&gt;&lt;br&gt;
&lt;p&gt;The Nano was designed and is being produced by Gravitech.&lt;br&gt;

&lt;a href="http://www.gravitech.us/arna30wiatp.html"&gt;Gravitech Arduino Nano V3.0&lt;/a&gt;&lt;/p&gt;</description>
</package>
</packages>
</library>
<library name="holes">
<description>&lt;b&gt;Mounting Holes and Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="3,2">
<description>&lt;b&gt;MOUNTING HOLE&lt;/b&gt; 3.2 mm with drill center</description>
</package>
</packages>
</library>
<library name="transistor-npn">
<description>&lt;b&gt;NPN Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92-EBC">
<description>&lt;b&gt;TO-92&lt;/b&gt;&lt;p&gt;
 grid 5.08 mm</description>
</package>
</packages>
</library>
<library name="switch-omron">
<description>&lt;b&gt;Omron Switches&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="B3F-40XX">
<description>&lt;b&gt;OMRON SWITCH&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C6" library="resistor" package="C025-025X050" value="104"/>
<element name="C12" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C11" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R16" library="rcl" package="0207/10" value="1K"/>
<element name="VR1" library="linear" package="TO220H" value="7805T">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="resistor" package="E5-8,5" value="100u"/>
<element name="C10" library="resistor" package="E2,5-5" value="10u"/>
<element name="R1" library="rcl" package="0207/10" value="4K7"/>
<element name="OC1" library="s2m" package="DIL06" value="H11L1"/>
<element name="R6" library="rcl" package="0207/10" value="270R"/>
<element name="R8" library="rcl" package="0207/10" value="220R"/>
<element name="D3" library="diode" package="DO35-7" value="1N4148">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP1" library="pinhead" package="1X02" value="MIDI IN">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="rcl" package="0207/10" value="220R"/>
<element name="R12" library="rcl" package="0207/10" value="220R"/>
<element name="JP2" library="pinhead" package="1X02" value="MIDI OUT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="RN1" library="resistor-sil" package="SIL8" value="10K">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="CN5" library="pinhead" package="1X06" value="1/2 Octave Data"/>
<element name="CN4" library="pinhead" package="1X07" value="Note Data"/>
<element name="IC4" library="linear" package="DIL08" value="LM358N"/>
<element name="CN3" library="pinhead" package="1X07" value="Pitchbend"/>
<element name="IC5" library="linear" package="DIL08" value="LM358N"/>
<element name="CN2" library="pinhead" package="1X10" value="Supply"/>
<element name="CN1" library="pinhead" package="1X04" value="Portamento"/>
<element name="R7" library="rcl" package="0207/10" value="470R"/>
<element name="C17" library="resistor" package="C025-025X050" value="224">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="OK2" library="optocoupler" package="DIL04" value="PC817">
<attribute name="OC_NEWARK" value="97K7059"/>
<attribute name="MPN" value="PC817X4J000F"/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="9707727"/>
</element>
<element name="R5" library="rcl" package="0207/10" value="220R"/>
<element name="IC3" library="linear" package="DIL08" value="LM358N"/>
<element name="LED1" library="led" package="LED3MM" value=""/>
<element name="R18" library="rcl" package="0207/10" value="1K"/>
<element name="IC2" library="s2m" package="DIL14N" value="MCP4922"/>
<element name="C22" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R14" library="rcl" package="0207/10" value="1K"/>
<element name="R15" library="rcl" package="0207/10" value="1K"/>
<element name="C26" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP4" library="pinhead" package="1X01" value=""/>
<element name="D1" library="diode" package="D-5" value="1N4148">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D2" library="diode" package="D-5" value="1N4148">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D4" library="diode" package="D-5" value="1N4148">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D5" library="diode" package="D-5" value="1N4148">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C29" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="ARDUINO_NANO1" library="ArduinoNanoV30_lgdDrills_noHoles" package="ARDUINO_NANO" value=""/>
<element name="C1" library="resistor" package="E5-8,5" value="100u"/>
<element name="C2" library="resistor" package="C025-025X050" value="104">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="holes" package="3,2" value=""/>
<element name="U$2" library="holes" package="3,2" value=""/>
<element name="U$3" library="holes" package="3,2" value=""/>
<element name="U$4" library="holes" package="3,2" value=""/>
<element name="JP3" library="pinhead" package="1X02" value="SWITCH MIDI/PROGRAM">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="T3" library="transistor-npn" package="TO92-EBC" value="BC549C"/>
<element name="R4" library="resistor" package="0207/7" value="47k"/>
<element name="R17" library="resistor" package="0207/7" value="470k"/>
<element name="R26" library="resistor" package="0207/7" value="1k"/>
<element name="JP5" library="pinhead" package="1X02" value=""/>
<element name="JP6" library="pinhead" package="1X06" value="Mode Switches (optional)">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="JP7" library="pinhead" package="1X06" value=""/>
<element name="S1" library="switch-omron" package="B3F-40XX" value="Start">
<attribute name="OC_NEWARK" value="36K3105"/>
<attribute name="MPN" value="B3F-4000"/>
<attribute name="MF" value="OMRON COMPONENTS USA"/>
<attribute name="OC_FARNELL" value="176434"/>
</element>
<element name="S2" library="switch-omron" package="B3F-40XX" value="Stop">
<attribute name="OC_NEWARK" value="36K3105"/>
<attribute name="MPN" value="B3F-4000"/>
<attribute name="MF" value="OMRON COMPONENTS USA"/>
<attribute name="OC_FARNELL" value="176434"/>
</element>
<element name="S3" library="switch-omron" package="B3F-40XX" value="Write">
<attribute name="OC_NEWARK" value="36K3105"/>
<attribute name="MPN" value="B3F-4000"/>
<attribute name="MF" value="OMRON COMPONENTS USA"/>
<attribute name="OC_FARNELL" value="176434"/>
</element>
<element name="S4" library="switch-omron" package="B3F-40XX" value="F1">
<attribute name="OC_NEWARK" value="36K3105"/>
<attribute name="MPN" value="B3F-4000"/>
<attribute name="MF" value="OMRON COMPONENTS USA"/>
<attribute name="OC_FARNELL" value="176434"/>
</element>
<element name="S5" library="switch-omron" package="B3F-40XX" value="F2">
<attribute name="OC_NEWARK" value="36K3105"/>
<attribute name="MPN" value="B3F-4000"/>
<attribute name="MF" value="OMRON COMPONENTS USA"/>
<attribute name="OC_FARNELL" value="176434"/>
</element>
<element name="D6" library="diode" package="DO35-7" value="1N4148DO35-7"/>
<element name="D7" library="diode" package="DO35-7" value="1N4148DO35-7"/>
<element name="D8" library="diode" package="DO35-7" value="1N4148DO35-7"/>
<element name="D9" library="diode" package="DO35-7" value="1N4148DO35-7"/>
<element name="D10" library="diode" package="DO35-7" value="1N4148DO35-7"/>
<element name="IC1" library="linear" package="TO92" value="LM7910"/>
</elements>
<signals>
<signal name="GND">
<contactref element="ARDUINO_NANO1" pad="19"/>
<contactref element="ARDUINO_NANO1" pad="14"/>
<contactref element="C6" pad="2"/>
<contactref element="C12" pad="2"/>
<contactref element="C11" pad="2"/>
<contactref element="VR1" pad="2"/>
<contactref element="C8" pad="2"/>
<contactref element="C9" pad="2"/>
<contactref element="C7" pad="-"/>
<contactref element="C10" pad="-"/>
<contactref element="OC1" pad="5"/>
<contactref element="RN1" pad="1"/>
<contactref element="CN2" pad="7"/>
<contactref element="CN2" pad="6"/>
<contactref element="CN2" pad="5"/>
<contactref element="CN2" pad="4"/>
<contactref element="C17" pad="2"/>
<contactref element="OK2" pad="2"/>
<contactref element="IC2" pad="12"/>
<contactref element="C22" pad="2"/>
<contactref element="C26" pad="2"/>
<contactref element="JP4" pad="1"/>
<contactref element="D2" pad="A"/>
<contactref element="D5" pad="A"/>
<contactref element="C29" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="C1" pad="+"/>
<contactref element="R17" pad="1"/>
<contactref element="T3" pad="E"/>
<contactref element="JP5" pad="1"/>
<contactref element="IC1" pad="1"/>
</signal>
<signal name="VIN">
<contactref element="ARDUINO_NANO1" pad="15"/>
</signal>
<signal name="SCK">
<contactref element="IC2" pad="4"/>
<contactref element="ARDUINO_NANO1" pad="1"/>
</signal>
<signal name="TX">
<contactref element="R9" pad="1"/>
<contactref element="ARDUINO_NANO1" pad="16"/>
</signal>
<signal name="RX">
<contactref element="OC1" pad="4"/>
<contactref element="R6" pad="2"/>
<contactref element="JP3" pad="2"/>
</signal>
<signal name="OCTAVE">
<contactref element="IC2" pad="14"/>
<contactref element="IC2" pad="11"/>
<contactref element="C11" pad="1"/>
</signal>
<signal name="+5V">
<contactref element="C6" pad="1"/>
<contactref element="IC2" pad="1"/>
<contactref element="VR1" pad="3"/>
<contactref element="C9" pad="1"/>
<contactref element="C10" pad="+"/>
<contactref element="R1" pad="1"/>
<contactref element="OC1" pad="6"/>
<contactref element="R6" pad="1"/>
<contactref element="R12" pad="1"/>
<contactref element="IC2" pad="9"/>
<contactref element="D1" pad="C"/>
<contactref element="D4" pad="C"/>
<contactref element="ARDUINO_NANO1" pad="12"/>
<contactref element="R26" pad="2"/>
</signal>
<signal name="+15V">
<contactref element="C8" pad="1"/>
<contactref element="VR1" pad="1"/>
<contactref element="C7" pad="+"/>
<contactref element="CN2" pad="1"/>
<contactref element="CN2" pad="2"/>
<contactref element="CN2" pad="3"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC4" pad="8"/>
<contactref element="IC5" pad="8"/>
</signal>
<signal name="N$19">
<contactref element="OC1" pad="2"/>
<contactref element="D3" pad="A"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="R8" pad="2"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="N$23">
<contactref element="R12" pad="2"/>
<contactref element="JP2" pad="1"/>
</signal>
<signal name="N$24">
<contactref element="R9" pad="2"/>
<contactref element="JP2" pad="2"/>
</signal>
<signal name="MOSI">
<contactref element="IC2" pad="5"/>
<contactref element="ARDUINO_NANO1" pad="29"/>
</signal>
<signal name="!CS!">
<contactref element="IC2" pad="3"/>
<contactref element="ARDUINO_NANO1" pad="28"/>
</signal>
<signal name="F#_C">
<contactref element="CN4" pad="1"/>
<contactref element="RN1" pad="8"/>
<contactref element="ARDUINO_NANO1" pad="6"/>
</signal>
<signal name="F_B">
<contactref element="RN1" pad="7"/>
<contactref element="CN4" pad="2"/>
<contactref element="ARDUINO_NANO1" pad="7"/>
</signal>
<signal name="E_A#">
<contactref element="RN1" pad="6"/>
<contactref element="CN4" pad="3"/>
<contactref element="ARDUINO_NANO1" pad="8"/>
</signal>
<signal name="D#_A">
<contactref element="RN1" pad="5"/>
<contactref element="CN4" pad="4"/>
<contactref element="ARDUINO_NANO1" pad="9"/>
</signal>
<signal name="D_G#">
<contactref element="RN1" pad="4"/>
<contactref element="CN4" pad="5"/>
<contactref element="ARDUINO_NANO1" pad="10"/>
</signal>
<signal name="C#_G">
<contactref element="RN1" pad="3"/>
<contactref element="CN4" pad="6"/>
<contactref element="ARDUINO_NANO1" pad="11"/>
</signal>
<signal name="CL">
<contactref element="RN1" pad="2"/>
<contactref element="CN4" pad="7"/>
<contactref element="ARDUINO_NANO1" pad="5"/>
<contactref element="JP6" pad="6"/>
</signal>
<signal name="K11">
<contactref element="CN5" pad="6"/>
<contactref element="ARDUINO_NANO1" pad="21"/>
</signal>
<signal name="K12">
<contactref element="CN5" pad="5"/>
<contactref element="ARDUINO_NANO1" pad="22"/>
<contactref element="JP6" pad="5"/>
</signal>
<signal name="K21">
<contactref element="CN5" pad="4"/>
<contactref element="ARDUINO_NANO1" pad="23"/>
<contactref element="JP6" pad="4"/>
</signal>
<signal name="K22">
<contactref element="CN5" pad="3"/>
<contactref element="ARDUINO_NANO1" pad="24"/>
<contactref element="JP6" pad="3"/>
</signal>
<signal name="K31">
<contactref element="CN5" pad="2"/>
<contactref element="ARDUINO_NANO1" pad="25"/>
<contactref element="JP6" pad="2"/>
</signal>
<signal name="K32">
<contactref element="CN5" pad="1"/>
<contactref element="ARDUINO_NANO1" pad="26"/>
<contactref element="JP6" pad="1"/>
</signal>
<signal name="PBI">
<contactref element="CN3" pad="1"/>
<contactref element="IC3" pad="5"/>
</signal>
<signal name="1V">
<contactref element="IC5" pad="2"/>
<contactref element="IC5" pad="1"/>
<contactref element="CN3" pad="7"/>
</signal>
<signal name="PB3">
<contactref element="IC5" pad="3"/>
<contactref element="CN3" pad="2"/>
</signal>
<signal name="2V">
<contactref element="IC4" pad="6"/>
<contactref element="IC4" pad="7"/>
<contactref element="CN3" pad="6"/>
</signal>
<signal name="PB2">
<contactref element="IC4" pad="5"/>
<contactref element="CN3" pad="3"/>
</signal>
<signal name="PB1">
<contactref element="CN3" pad="4"/>
<contactref element="IC5" pad="5"/>
</signal>
<signal name="4V">
<contactref element="IC5" pad="6"/>
<contactref element="IC5" pad="7"/>
<contactref element="CN3" pad="5"/>
</signal>
<signal name="N$12">
<contactref element="R7" pad="1"/>
<contactref element="OK2" pad="3"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="KO">
<contactref element="R7" pad="2"/>
<contactref element="CN1" pad="1"/>
</signal>
<signal name="PI">
<contactref element="IC3" pad="3"/>
<contactref element="CN1" pad="4"/>
<contactref element="C17" pad="1"/>
<contactref element="C29" pad="1"/>
</signal>
<signal name="KV">
<contactref element="IC3" pad="2"/>
<contactref element="IC3" pad="1"/>
<contactref element="CN1" pad="3"/>
</signal>
<signal name="PO">
<contactref element="CN1" pad="2"/>
<contactref element="R16" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="R5" pad="2"/>
<contactref element="LED1" pad="K"/>
</signal>
<signal name="N$10">
<contactref element="OK2" pad="1"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="GATE">
<contactref element="LED1" pad="A"/>
<contactref element="ARDUINO_NANO1" pad="30"/>
</signal>
<signal name="N$21">
<contactref element="R16" pad="1"/>
<contactref element="IC4" pad="1"/>
<contactref element="IC4" pad="2"/>
</signal>
<signal name="NOTE">
<contactref element="C12" pad="1"/>
<contactref element="IC2" pad="10"/>
<contactref element="R18" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="R18" pad="2"/>
<contactref element="IC4" pad="3"/>
</signal>
<signal name="PB_VREF">
<contactref element="C22" pad="1"/>
<contactref element="IC2" pad="13"/>
<contactref element="R14" pad="1"/>
<contactref element="D5" pad="C"/>
<contactref element="D4" pad="A"/>
</signal>
<signal name="N$3">
<contactref element="R14" pad="2"/>
<contactref element="R15" pad="2"/>
<contactref element="IC3" pad="7"/>
<contactref element="IC3" pad="6"/>
</signal>
<signal name="!LDAC!">
<contactref element="IC2" pad="8"/>
<contactref element="ARDUINO_NANO1" pad="27"/>
</signal>
<signal name="PBV">
<contactref element="R15" pad="1"/>
<contactref element="ARDUINO_NANO1" pad="4"/>
<contactref element="D1" pad="A"/>
<contactref element="D2" pad="C"/>
<contactref element="C26" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="D3" pad="C"/>
<contactref element="OC1" pad="1"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="-15V">
<contactref element="CN2" pad="8"/>
<contactref element="CN2" pad="10"/>
<contactref element="CN2" pad="9"/>
<contactref element="C2" pad="1"/>
<contactref element="IC3" pad="4"/>
<contactref element="IC4" pad="4"/>
<contactref element="IC5" pad="4"/>
<contactref element="C1" pad="-"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="N$1">
<contactref element="ARDUINO_NANO1" pad="17"/>
<contactref element="JP3" pad="1"/>
</signal>
<signal name="N$43">
<contactref element="T3" pad="C"/>
<contactref element="R26" pad="1"/>
<contactref element="ARDUINO_NANO1" pad="20"/>
</signal>
<signal name="N$46">
<contactref element="T3" pad="B"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$28">
<contactref element="R4" pad="1"/>
<contactref element="R17" pad="2"/>
<contactref element="JP5" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="S1" pad="2"/>
<contactref element="JP7" pad="5"/>
</signal>
<signal name="N$6">
<contactref element="S2" pad="2"/>
<contactref element="JP7" pad="4"/>
</signal>
<signal name="N$8">
<contactref element="S3" pad="2"/>
<contactref element="JP7" pad="3"/>
</signal>
<signal name="N$11">
<contactref element="S4" pad="2"/>
<contactref element="JP7" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="S5" pad="2"/>
<contactref element="JP7" pad="1"/>
</signal>
<signal name="N$14">
<contactref element="JP7" pad="6"/>
<contactref element="D10" pad="C"/>
<contactref element="D9" pad="C"/>
<contactref element="D8" pad="C"/>
<contactref element="D7" pad="C"/>
<contactref element="D6" pad="C"/>
</signal>
<signal name="N$15">
<contactref element="D6" pad="A"/>
<contactref element="S1" pad="4"/>
</signal>
<signal name="N$16">
<contactref element="S2" pad="4"/>
<contactref element="D7" pad="A"/>
</signal>
<signal name="N$17">
<contactref element="S3" pad="4"/>
<contactref element="D8" pad="A"/>
</signal>
<signal name="N$18">
<contactref element="D9" pad="A"/>
<contactref element="S4" pad="4"/>
</signal>
<signal name="N$22">
<contactref element="S5" pad="4"/>
<contactref element="D10" pad="A"/>
</signal>
<signal name="N$25">
<contactref element="R1" pad="2"/>
<contactref element="OK2" pad="4"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
