Build Your Own Clone Relay Bypass Board...

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Build Your Own Clone Relay Bypass Board Instructions

Transcript of Build Your Own Clone Relay Bypass Board...

  • BuildYourOwnCloneRelayBypassBoard

    Instructions

  • PartslistfortheRelayBypassBoard

    Resistors:1-2k2/222 (Red/Red/Black/Brown/Brown)1-10k/103 (Brown/Black/Black/Red/Brown)Capacitors:2-100n/.1uF/104FilmCapacitors(Maysay‘104’onthebody)Diodes:1-3vZenerDiode(use4.1vzenerifusing5vrelay)ICs:1-12F609ProgrammedMCU1-DIP8ICSocketTransistors:2-2N3904(OrSimilarNPNTransistors)2-BS1701-78L333.3VVoltageRegulator(or78L05ifusing5vrelay)Relays:1-DualLatchingRelay3vor5vrelayFootSwitch(optional):IfyouareinstallinginaBOSSorIbanezpedal,youdonotneedafootswitch.Youwillusetheexistingtactileswitch.

  • Step1:Addtheresistors.Thesearenotpolarizedandcangoineither

    direction.

  • Step2:AddtheZenerDiode.BesuretomatchthestrippedendofthediodewiththestripeonthePCBscreenprint.

  • Step3:AddICsocket.BesuretomatchthenotchontheboardscreenprintwiththenotchontheICsocket

  • Step4:AddtheRelay.Therewillbeastripeononeendoftherelaytoindicatepins1and10.Installitsothatthestripeisabovethenotchon

    thescreenprint.

  • Step5:Addthefilmcapacitors.Thesearenotpolarized,meaning

    theycangoinanydirection.

  • Step6:Addthetransistors.Thetransistorsinredarethe2N3904s,thetransistorsinyellowaretheBS170s,andthetransistoringreen

    isthevoltageregulator.

  • GeneralWiringDiagram

  • BosswiringNote:thewiringdiagramsshowaSPDTsoft-touchfootswitch.Youwillbeusingtheexistingtactileswitchthatcamewithyourpedal.Functionally,theyareidentical.Ifyouareinstallingthisonapedalthatwedonotalreadyprovidespecificinstructionsfor,youwillalsoneedtoremovearesistorfromtheexistingflip-flopbypasssystem.See“ModifyingtheFlip-Flop”onpage14.Otherwise,downloadourinstallationguidethatisspecifictoyourpedal.

  • IbanezWiringNote:thewiringdiagramsshowaSPDTsoft-touchfootswitch.Youwillbeusingtheexistingtactileswitchthatcamewithyourpedal.Functionally,theyareidentical.Youwillneedtoremovearesistorfromtheexistingflip-flopcircuit.WeprovideinstallationinstructionsthatarespecifictotheTS808,TS9,andOD9.Youshoulddownloadthoseinstructions.

  • BYOCWiring1

    YouwillneedtouseaDPDTmomentaryswitchifyouwanttousetheRelayBypassSwitchwithaBYOCkitthathasaPCBthatencompassesthefootswtich.Thestandard“Carling”SPSTmomentaryfootswitchwillnotfit.

  • BYOCwiring2

  • ModifyingtheFlip-FlopinaBOSScompactpedal

    AlmostallBOSScompactpedalsusethesameflip-flopcircuittoswitchthebypassonandoff.BeforeyoucanusetheRelayBypassSwitch,youneedtomodifytheflip-flopcircuitsothatitalwaysgoesintoengagedmodeor“on”uponpowerup(normally,itgoesintobypassmodeuponpowerup).Notethatyouwillstillbeabletoturnthepedalonandoffwithitsoriginalswitchafterthismod,butonceyoudisconnectthetactileswitchfromthemainPCBandconnectittoyourRelayBypassSwitch,thepedalwillessentiallybepermanentlystuckin“on”modeandreadyforusewiththeRelay

    BypassSwitch.

    Themodificationisverysimply.Youonlyneedtoremoveoneresistor.

    Locatingtheresistor:InBOSScompactpedals,theresistor’s

    locationanddesignatornumberwillvaryfrompedaltopedal.Forexample,it’sR30intheDS-1andR22intheDS-1.Butitisalmostalwaysa56kresistor..IfyouareinstallingtheRelayBypassSwitchinapedalthatwedonotofferspecificinstallationinstructionsfor,itisuptoyoutoacquireafactoryschematicandlocatethisresistor.Onthenextpageisagenericschematicoftheflip-flopcircuit.You

    shouldbeabletofindthissamecircuitinanyBOSSfactoryschematic.

  • TheredarrowpointstotheresistoryouneedtoremovetopreparetheBOSSflip-flopcircuit.ThisisanexcerpttakenfromaBOSSCS-1factoryschematic.Here,theresistordesignatorisR23.Inyourpedal,theresistordesignatormaybesomethingelse.Butitwill

    mostlikelybea56kresistorandcircuitwillbeidentical.


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