2. Parts Express
  3. 320-291
320-291

Parts Express 320-291 User manual

  • Hello! I've reviewed the user manual for the Parts Express LED Christmas Tree Kit. This document provides detailed instructions on how to assemble the three circuit boards and solder the components to create a 3D color-changing LED Christmas Tree. It includes information on resistor color codes, transistor and capacitor placement, and LED installation. I am ready to answer any questions you have about the assembly process or the functionality of this kit.
  • How many LEDs are in the kit?
    What are the two possible power sources for the kit?
    How many circuit boards are included in the kit?
TheashingChristmastreekitismadeupofthreecircuitboards.Assembleandsoldersothat36clearLEDsash
multiplecolorsalternately,presentingthethree-dimensionaloutlineoftheChristmastree(betterviewingatnight).
PleasebesuretoreadallofthestepsinthemanualthoroughlybeforestartingtheassemblyoftheChristmasTreeKit.
Assembly process:
1.) SolderingChristmasTreecircuitboard(abbreviatedasBoardA).IdentifyAbyndingthe“2PH88566A”orthe
 Treewiththeslotstartingfromthetop.Matchthecolorcodeonthepictureswiththecorrectresistors.
a.) SolderBrown,black,orange10Kresistors(R1R3R5R7)
b.)
SolderaRed,Black,RedresistortoR2,aBrown,BlackRedtoR4,andanOrange,Orange,Brownresistor
 toR6.
3D Color Changing LED Christmas Tree Kit
Assembly Instructions
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c.) Solder3transistors,bendingthecomponentsbeforesoldering(otherwisetheywon’tbeabletolayush
 ifsolderedrst).Makesuretomatchtheshapeofthetransistorstotheshapeprintedontheboard.
d.) Solder3+47uFelectrolyticcapacitors(bendingthecomponentsbeforesoldering,otherwise,theywon’t
 beabletolayushifsolderedrst).Makesuretomatchtheshapetotheprintedshapeontheboard.
 Thelongterminalispositive,theshortterminalisnegative.
i.) Firstestimatethecapacitorpinfromwhichpositiontodo90°bend
ii.) Afterfoldingthepin,insertitintothecorrespondinghole(payattentiontotheinstallationdirection,
 matchingtheshapeoftheboard).
iii.)Bendthecapacitorpin90°inthecorrectdirectionandthensolderit
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e.) SolderingLEDlights(matchingtheshapeoftheboard),numberedD1~D18.(Thesquarepadofcircuit
 boardispositive,andthelongpinofLEDispositive
i.) FirstestimatetheLEDpinfromwhichpositiontodo90°bending
ii.) Afterfoldingthepin,insertitintothecorrespondinghole(payattentiontotheinstallationdirection)
iii.)BendtheLEDpin90°inthecorrectdirectionandthensolderit
ThesolderingofBoardAiscompleted.
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2.) Next,usethesamedirectiontosoldertheBcircuitboard,referredtoasBoardB.Therearetwodierent
 installationpositionsofcomponentsfortheBoardAandB(justinstallaccordingtothelocationonthe
 componentlist)
a.) R2isorange,orange,brown,R4isred,black,redandR6isbrown,black,red.Theremainingresistors’
 locationsarebrown,black,orange(R1,R3,R5).
b.) Soldertransistors,capacitorsandLEDslikeboardA.
c.) AfterBoardAandBoardBaresoldered,youcanpowerontotestwhetherthetwoboardscanglowand
 ickernormally.AfterbothAandBashnormally,continuewiththefollowingsteps.
(AfterboardsAandBaresoldered,connecttoavoltageofabout4.5Vrespectively,conrmthatalltheLEDlights
canashnormally,andthencontinuethefollowingsteps)
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Board A Board B
3.) SolderingCTR-30Ccircuitboard,referredtoasBoardC
a.) Soldering1DCsocket(matchingtheshapeoftheboard)
b.) AftertheDCsocketissoldered,thepinsneedtobecutasshortaspossibletopreventaectingthe
 installationofthebatteryboxbehind.(ReinforcetheDCsocketwiththecutcomponentpins)ina“U”
 shapeifyouplanonusingitinsteadofbatteries.
c.) Soldering1keyswitchwiththenotchfacingout.Ifyoucannotndthenotch,clickthepushbuttonto
 maketheswitchpopup.
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Switch notch outward
d.) CombinationofboardAandBoardB(withdirection,positioningthearrowsofthetwoboardsareas
 shownbelow)afterthetwopositioningarrowsarealigned,solderthetwoboardstogetherwitha
 solderingiron
i.) Alignthetwopositioningarrowsrst
ii.) Solderthetwoboardswithtinwire
iii.)ThepositioningarrowsofboardAandboardBareshownintheenlargedpictureontheupperleft
e.) CombinationofthebatteryboxandBoardC
i.) PassthebatteryboxwireoutofthebottomofboardCaccordingtothecorrespondingpolarity
ii.) Reserveacertainlengthofwire,cutotheexcesswire
iii.)Solderthebatteryboxwire--matching+red,-black
iv.) Combinethebatteryboxwithscrewsandnuts
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5.) Combinationofthepre-assembledBoardAandBtoBoardCpositioningthepowerpolaritycorrectlywith
 positiveoverpositivelikeshownbelow
6.) SolderthetoponeLEDlonglead+withsquaresolderjoint
NowyourChristmasTreeiscomplete,thenishedpictureisasfollows:
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Finished product and diagram of each interface and key:
© Parts Express®Last Revised: 11/1/2021
Specications:
Workingvoltage:DC4.5-5V
Powersupply:3AAbatteriesor5VDCUSBpower
Dimension:2.36”x2.36”x5.35”(60mm*60mm*136mm)
Two power supply methods:
1.) 3 AA batteries (sold separately)
2.) External 5 VDC USB-A power supply/port
(sold separately)
3 AA batteries
Power indicator
Power switch
External 5V
power supply
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