aoyue Int720 User manual

Brand: aoyue

Model: Int720

Category: Soldering irons

Type: User manual

Aoyue Int720 is a focused infrared welding system that combines soldering/desoldering features and infrared (IR) technology in one sophisticated package. Designed for reworking on double-sided and diverse technology printed circuit boards (PCB), the system utilizes infrared heat wave technology, eliminating the need for conventional hot air. It features an integrated hands-free IR solder light gun for ease of use and a unique mechanical design for precise soldering, preventing the displacement of surrounding components.

24

Manufacturer:

AOYUETONGYIELECTRONICEQUIPMENTFACTORY

JishuiIndustrialZone,Nantou,ZhongshanCity,

GuangdongProvince,P.R.China

http://www.aoyue.com

FocusedInfraredWeldingSyste m

Int720

INSTRUCTIONMANUAL

ThankyouforpurchasingAoyue720FocusedInfraredWeldingSystem.

Itisimportanttoreadthemanualbeforeusingtheequipment.

Pleasekeepmanualinaccessibleplaceforfuturereference.

This manual is designed to familiarize the technician with

the proper operation and maintenance of the equipment.

The “Care and Safety Precautions” section explains the

hazards of using any type of soldering or reworking device.

Please read carefully and observe the guidelines in order to

maximize usage and minimize the risk of injury or accidents .

2 23

1.)WhatIRsolderlightguntempera tureshouldIuse?

Between 180380°C. Only increasetheIRsolderlightgun tempera

ture after you have increased the preheater to the required tem

perature.AlwayspreheatthePCB(betwee n30and90seconds)to

allowheattoconductthroughthecomponentbeforeapplyingtheIR

solderlightgun.

2.) Wh at is the working distance of the IR solderlight gun

andhowdoImoveitforrework?

Approximately 510mm when reworking and move  up to 30mm

when removing component. Use the gears attached to the device,

particularlytotheIRsolderlightlightgun,toadjustthedistance.

3.)Whatbackheatse ttingshouldIuse?

Generally180°200°Csetonthepreheaterisagoodstartingpoint.

Thesystemisalreadyconfiguredtopre heatat200°C.Withthecor

rectpreheatersetting,thetopofthePCBwillreachapprox imately

120140°Cinabout60120seconds.

4.)WhydoIneedtheweldinggoggles?

Thegoggleshastwoimportantfunctions:oneistoletyouviewthe

focusedinfraredlightforprecisionsoldering.Theotheristop rotect

youreyesfromharmfuleffectsbroughtbyIRexposure. 

FREQUENTLYASKEDQUESTIONS(FAQ)

22

BASICTROUBLESHOOTINGGUIDE

PROBLEM6:SOLDERINGTEMPERATUREPANELDISPLAYS

UNKNOWNCHARACTERS

DESCRIPTION:Afterswitchingthesolderingironbutton,C10,the

solderingtemperaturedisplaypanelshows“350C”shortlythenpro

ducesthreeshortbeepsorthreeconsecutivehighpitchsounds.

Thepanelwillthendisplayunknowncharactersasillustratedbelow.

SOLUTIONS:

1. Checktheconnectionofthesolderingtip.Tightenifitisloosely

connected.OR,

2. T hesolderingtipmayhavebeendamagedandneedstobere

placed.

PROBLEM7:DISPLAYANDOTHERDEVICEOPERATION

ISSUES

SOLUTION: Trytopressthe“RESET”buttononthedevice.Note

thatresettingthedevicewillalsoreset all previouslydefinedcon

figurations.

OTHERPROBLEMSNOTMENTIONED:

Contactthevendor.

3

TABLEOFCONTENTS

PRODUCT ILLUSTRATION …………………………………… 4

PRODUCT DESCRIPTION …………………………………… 5

FUNCTIONS & FEATURES …………………………………… 6

PACKAGE INCLUSION …………………………………….. 7

SPECIFICATIONS ……………………………………………. 8

OPERATING PROCEDURES ……………………………. 915

TECHNICAL DESCRIPTIONS ………………………………. 16

CARE & SAFETY PRECAUTIONS ………………………….. 17

MAINTENANCE ………………………………………… 1819

REWORKING TIPS ………………………………………….. 20

BASIC TROUBLESHOOTING GUIDE …………………. 2122

FREQUENTLY ASKED QUESTIONS ………………………... 23

4

PRODUCTILLUSTRATION

21

BASICTROUBLESHOOTINGGUIDE

PROBLEM1:THEUNITHASNOPOWER

1. CheckiftheunitisswitchedON.

2. Checkthe fuse. Replacewith the sametype if fuse is blown

(seeMAINTENANCEsection).

3. Checkthepowercordandensuretherearenodisconnections.

4. Verifythattheunitisproperlyconnectedtothepowersource.

PROBLEM2:BULBERROR

T his may be caused by either a blown fuse,ol d or burnt lamp,

corrodedlamppinsoradefectivelampsocket.Checkthedefec

tivecomponentandreplacewhennecessary.

PROBLEM3:INFRAREDLAMPISNOTWORKING

T heIRlampha s alife expectancyof30,000cycles or50 hours

atfullpow er.Replacewithanewlampifitalreadylooksburnt.

PROBLEM4:POORINFRAREDLIGHTOUTPUT

Check the lamp pins and socket for cor rosion. Residue on the

lamp pins may prevent  proper contact betwee n the lamp pins

andthelampsocket.Removethelampa ndcleanthepi nslightly

wit habrasivepaper.

PROBLEM5:PREHEATERMALFUNCTI ONS

T hismay becaus ed by eithera blown mainsoraproblemwith

thec onnections.Checkifthepre heaterisproperlyconnectedto

the(m ainunit) controller.

20

● U sefluxgel.Th egelwillturnintofluid/liquidtoindicatethat

the PCB is already preheated. The heat from  the IR solder

light gun may the n be applied. Using f lux gel also helps in

protectingandsecuringproperplacementofcomponents.

● T helongerth ecomponentorthePCBispreheated,theless

topheatisrequiredtodotherework.

● When the solde r is fully molten, tap the PCB  and watch the

surfac etensionofthesolderdrawthecomponentintoperfect

alignment.

REMOVINGORREP LACINGACOM PONENT

● Applyfluxtosolderjoints.

● Preheat:Wait 30to90secondsforthefluxtoturnintoliquid.

● Reflow:UsetheIRsolderlightgun(therewillbetwoburstsof

smoke(fluxflumes),andonthesecondone,youshouldhave

reachedreflow).

● Remove component with the IR solderlight gun raised about

30mmabovethecomponent.Usetweezersorvacuumpento

pickupthecomponent.

REWORKINGTIPS

REMINDER:AlwayswearweldinggogglesORsecuretheprotective

lenswhenreworking.

5

TheAoyue720FocusedInfraredWeldingSystemisareworking

equipmentthatcombinessoldering/desolderingfeatureandinfrared

(IR)technologyinonesophisticatedpackage. Iti s designed forre

workin g on doublesided and diverse technology printed circuit

boards(PCB).

T hesystemadaptedtheconceptofheatenergyreflowfro m

topandbottomheatsources.Thetopheat isderivedfroma200

WattshortwaveIRl ampwhilethebottomheatsourcedeliversa

maximumof650Watts mediumwaveIR.Undernormaloperating

condition , approximately 25% of the energy is provided by the

topheaterand75%oftheenergyisprovidedbythepreheater.

Finally,theunique,innovativedesignwithdigitalcontrolpanel

offersprecision,safety,andeaseofusetomeetallreworking

requirements.

PRODUCTDESCRIPTION

6

● MicroprocessorcontrolledESDsafeunit.

● Utilizesinfraredheatwavetechnology.Noconventionalhotair

required.

● IntegratedhandsfreeIRsolderlightgun,providingeaseofuse.

● Unique, innovativemechanicaldesign formore precisesolder

ing; eliminates the displacement of surrounding components

brought by unnecessary or accidental movements during re

working.

● Widely used for reworking BGAs, micro BGAs, QFPs, PLCCs,

SOICs,smallSMD,andothercircuitboardcomponents.

● Embeddedpreheatingstationforwarmingbothsurfaceofthe

PCBandeliminatethepossibilityofshortcircuit.

● EasytoadjustIRandpreheattemperatureswithdigitaldisplay.

● Builtintemperaturesensorforstable(temperature)measurements.

● Timer functionality for automating reworking tasks under pre

definedtemperaturevalues.

FUNCTIONSandFEATURES

19

CHANGINGTHEFUSE

● Make sure the equi pmentisalready cooled down and isolated

fromthemainpower sourcebeforechangingthefuse.

● T he f use ofthemainunitis locatedat the backof theequip

ment, righ t below the power plug connector. Change the fuse

bywithdrawingthefuseholderthenreplacethefuseitse lf.

● Replaceonlywiththesametype,sizeandrating.Pleaserefer

tothetable belowforfuseratings.

CHANGINGTHEIRLAMP

● SwitchOFFtheunitandu nplugthedevicefromthemainpower

source.

● Withdrawthelampfromthehousing.

● Fitreplacement.

● Becarefultohandleonlytheoutsideedgesofthegla ssreflector.

CAUTION:Avoid touchingthebulbinsidethelamp.Thelampmay

failpremat urelyifthebulbinsidethela mpistouched. 

MAINTENANCE

Location Rating Size

RearPanel

5A,220V

5x20mm

8A,110V

18

MAINTENANCE

CLEANING

● Attheendofeachwor kingday,wipeanyexcessfluxand/or

solderpastefromtheequipme ntwithacleancloth.

● Cleantheexposedsurfacesoftheequipment

usi ngsoftclothandantistaticfoamcleaner,periodically.

● CleanthelensassemblyusingIsopropylalcohol.

● Make sure that lens cloth is clean. Any solid object on the

clo th couldscratc htheglass surface andaffect functionality

ofthede vice.

CAUTION:Donotuse solventsforcleaninganypartofthe

equipmentastheymaydamagethefinish.

WARNING: All cleaning and/or maintenance

should be performed when the equipment is

sw itched off and disconnected from the main

powersource.Allowthesyste mtoc ooldownat

roomtemperaturetoavoidburnsorotherdam

agesfromhot partsofthemachine..

7

PACKAGEINCLUSION

QUANTITY PARTDESCRIPTION

1unit Aoyue720MainStation

1unit Metalpole

1unit Coolingstand

1unit Footswitch

1unit PCBholder

1unit Infrareddevice

1pc Infraredlamp

1pc Protectivelens/shield

1pc Weldinggoggles

1pc Aoyue2900solderingpen

1pc LF2Bsolderingtip

1pc LFKsolderingtip

1pc Heatresistantpad

1pc 939suctionpen

1pc ICextractor

1pc Fluxgel

1pc Powercord

1pc Aoyue720Manual

8

SPECIFICATIONS

MAINCONTROL

PowerInput: Availablein110V/220V

Frequency: 50Hz

TotalCurrent: 4.6A

MainControl: 390(l)x270(w)x92(h)mm

INFRAREDSOLDERLIGHTGUN

PowerConsumption: 200W

TemperatureRange: 100°C450°C

HeatingElement: HalogenLightSource

PREHEATER

PowerConsumption: 650W

TemperatureRange: 100°C500°C

HeatingElement: QuartzInfrared

SOLDERINGIRON

PowerConsumption: 70W

TemperatureRange: 200°C480°C

HeatingElement: CeramicHeater

OutputVoltage: 24V

17

CAREandSAFETYPRECAUTIONS

CAUTION:Improperusagecancauseinjuryandphysicaldamage.

Foryourownsafety,pleaseobservethefollowingprecautions.

● Temperaturemayreachashighas500°CwhenturnedON.

Donottouchthewhiteceramicheatingelementi nsidethe

preheater.

Donotexposenakedeyetotheinfraredlight.This

cancauseseriousdam ageoftheeye.

Donotexposeskintoinfraredli ghtf oralongperiod.

Exposureforalongdurationmaydamagetheskintissue.

● Securefootswitchandensurethatnothingcanrestorfallonit.

● Handlewithcare

Neverdroporsharplyjolttheunit.

 Contains delicateparts such as IR lamps that may break if

theunitisdropped

Donotspillanyliquidtothesystem.

● Donottampertheelectricalcontrolunitoranywiringinside

● thedevice.Thismaycausesevereelectricshock.

● Disconnectplugfrommainpowersourceifthedevicewillnotbe

usedforalongperiod.

 Turnoffpowerduringbreaks,ifpossible.

● Allowampletimefortheequipmenttocooldownbeforecom

mencingmaintenance.

● Useonlygenuinereplacementparts.Turnoffpowerandletthe

unitcooldownbeforereplacinganycomponent.

16

TECHNICALDESCRIPTION

SYSTEMHEATINGPROCESS

Theheating processoftheFocused InfraredWeldingsystem isa

combination oftheIRsolderlightgunandthepreheater.Thepre

heatercan deliver200°upto480°CtothePCB,pads,andleadsof

thecomponent.TheIRsolderlightgunfurtherincreasesthetem

peratureuntilreflowisreached.

INFRAREDLAMP

The200WattInfrared(IR)lampislocatedinsidethelamphousing

andclampedonametalrod,whichissecuredontopofthemain

unit.ThelampemitsshortwaveIRradiationatapproximately1.0

microninwavelength.

TOPHEAT

ThetopheatisproducedbytheIRsolderlightgun.Thisincreases

whilefocusingtheheatonthedesire dcomponentbeingreworked.

This also brings the solder joint temperature higher in order for

heattoreflow.

PREHEATER

The preheater provides and maintains distributed  heat (or Back

Heat) across the PCB and components prior to a ctual reworking.

ThisprotectsthePCBfromdelaminatingandthecomponentsfrom

thermal shock — brought by sudden exposure to high tempera

ture.About approximately 75%of heat energyis suppliedby the

preheaterandtheremaining25%bytheinfraredsolderlightgun.

9

OPERATINGPROCEDURES

PREPARINGTHEEQUIPMENT

1. Place the equipment on a fl at stable surface of at least one

squaremeterandaheights uitabletotheuser.

2. Attachtheprotectivelenstothefront oftheIRsolderlightgun.

3. Connectthesolderingironandfootswitchasindicatedfromthe

productillustration.

4. Connect one end of the power cord to the socket found at the

backofthemainunit.

5. Therecommendedlightingconditionshouldnotbesobri ghtsuch

thattheIRspotisstill viewablebytheuser..

6. Theelectricitysupplymustbefreefrominterferenceofotherde

vices.

SMDREWORKINGPROCEDURE

1. Assoonasallthenecessarycomponents(e.g.,IRsolderlightgun,

solderingiron,footswitch,protectivelens)havebeenattachedto

themainunit,youarereadytos tartthereworking process.

2. Plugtheequipmenttothemainpowersource.

3. TurnONtheunitusingpowerswitch (‘A’fromthe controlpanel)

locatedattherighthandsideofthefrontpa nel.

10

4. WithbuttonsC1,C4,C7,andC10disabled(OFF),thedisplaypan

elswillshowthefollowing.

5. ThePCB/componenttoberepairedshouldbeplacedontopofthe

preheatingcomponent.UsethebeamstoholdthePCBandadjust

the screws to secure the placement. Make sure that the affected

component is placed at an appropriate distance, perpendicular to

theIR solderlight gun.Thiswill keeptheIR light focusedonly to

thecomponentconcerned.Move the temperaturesensor tip near

thecomponentfortemperaturereading.

OPERATINGPROCEDURES

15

USINGTHESOLDERINGIRON

1. WiththeunitswitchedONandthesolderingplugconnectedto the

equipmentviaterminalEfromthecontrolpanel,activatesoldering

bypushingbuttonC10.

2. AdjustthesolderingirontemperatureusingbuttonsC11andC12.

3. Wai tforafewsecondswhilethesystem isadjustingtheso ldering

irontemperaturetothedesiredvalue.Youwillheara“beep”ora

highpitchsoundwhenthetemperatureisreached.

4. Whenworkisfinished,deactivatesolderingswitch.

5. T urnOFFtheunit.

6. U nplugthedevicefromthemainpowersource.

NOTE: The soldering iron temperature is configurable from 200̊ to

480̊̊̊̊C,with350̊̊̊̊Casthedefault.

USINGTHEFOOTSWITCH

1. Before reworking, make sure the unit is switched ON, the foot

switchconnectedtothedeviceviafootswitch plug,Ffromthecon

trolpanel,the PCBisproperlyplacedontopoftheequipment,and

thepreheattemperatureisreached.

2. Set the temperature by temporarily activating IR welding switch,

C1, and increase or decrease the desired reworking temperature

usingbuttonsC2andC3.

3. Oncetemperaturei sset,deactivateC1.

4. Steponthefootswitchtostartreworking.

5. Whenfinished,turnoffthedevice.

6. Unplugtheunitfromthemainpowersource.

OPERATINGPROCEDURES

14

OPERATINGPROCEDURES

B.AutomatedweldingusingtheFOOTSWITCH

1. Before reworking, make sure the unit is ON, the footswitch con

nected to the device via footswitch plug, F, the PCB is properly

placedon topof the equipment, andthe preheattemperatureis

reached.

2. Set the temperature by temporarily activating IR welding switch,

C1, and increase or decrease the desired reworking temperature

usingbuttonsC2andC3.

3. Oncetemperaturei sset,deactivateC1.

4. Set thereworking timeby selectingbuttons C5andC6 fromthe

controlpanel.Notethatthetimeisinsecondsunit.

5. Activateautomateswitch,C4.

6. T he countdown willstart when you stepon the foot switch. Re

leasingthefootswitch,ontheotherhand,willholdthecount.This

willresumewhenyousteponthefootswitchagain.

NOTE: Timeisconfigurablefrom20to9999secondswitha20second

increment.

USINGTHERESETBUTTON

IMPORTANT: BecarefulinusingtheRESETbuttonasthiswillremove

all previouslydefinedconfigurations.Thiswill alsorestorethesystem

defaultvaluesasfollows:

IRsolderlightguntemperature: 90̊C

Automatetime: 300sec.

Preheattemperature: 200̊C

Solderingirontemperature: 350̊C

11

6. StartthepreheaterbyenablingorturningONbuttonC7fromthe

panel. The preheater will gradually increase the temperature to

200̊C,whichisthedefaulttemperaturevalue.Youmayfurtherin

creaseordecreasethetemperaturebypushingbuttonsC8andC9.

NOTE: If the preheating temperature display panel, D3, shows

“OFFC”duringthecourseofpreheating,pushtheRESETbutton,

B,toshowagaintheactualpreheattemperaturevalue.

7. Oncethedesiredpreheattemperatureisreached,youmaystart

theIR solderlight gun.Push buttonC1from the control panel to

activate this. The infraredtemperature display, D1, should show

somethinglikethefigurebelow.

The upper halfofthedis

playindicatesthedefaultoutputvalueoftheIRsolderlightgun,

whichis90̊C.Thelowerhalfindicatestheactualtemperaturede

livered to the component. You will notice that this val ue will

change frequently and will fluctuate a little above or below the

definedtemperaturelevel.UsebuttonsC2andC3toincreaseor 

OPERATINGPROCEDURES

12

After the temperature has been set, the IR solderlight gun will

strikealightbeamonthecomponentforabout3secondsand will

fadeafterwards.Thiswillrecurperpetuallyevery15secondsuntil

any of the foll owing conditions is met: (1) the infrared welding

switch is turned OFF by the user, OR (2) once the predefined

automateweldingtimehaselapsed(see“USINGTHEAUTOMATED

WELDINGFUNCTION”),OR(3)whenthefootswitchhasbeende

activated(see“USI NGTHEFOOTSWITCH”).

8. LeavetheIRsolderlightgunworkinguntilthecomponentiscom

pletelydesolderedorwhenreworkingisdone.

9. Deactivate the infrared welding switch, C1, when rework is com

pleted.Notethatthesystemwillwaitforthetemperaturetodrop

to90̊CbeforeitcompletelyturnsOFF.Youwillalsonoticeaslight

change on the display panel like below while the temperature is

graduallydecreasing(i.e.,“Exxx”insteadof“bxxx”).

10. Deactivate the preheating button, C7, to cool down the pre

heatingelement.Thepanelwillthenshowtheinitialdisplayasin

itemnumber4onceeverythingissettled.

11. SwitchOFFtheequipmentusingbuttonAfromthecontrolpanel.

12. Unplugtheequipmentfromthemainpowersource.

OPERATINGPROCEDURES

13

REMINDERS:

● Always place the PCB on board supports or beams, with

thecomponentpositionedatthecenterofthepreheater.

● Alwaysapplyfluxtojointsbeforereflow.

● Before r eplacing a component, ch eck if there is enough solder

onthe padstosol dernewcomponent.

● When replacing a component, make sure the new component

doesnothaveanybentleads.

USINGTHEAUTOMATEDWELDINGFUNCTION

IMPORTANT: Theautomatedweldingfunctionwill ONLYworkifthe

infraredweldingswitchisONORwhenthefootswitchisactivated.

A. AutomatedweldingusingINFRAREDWELDINGswitch

1. Beforereworking,makesuretheunitisON,thePCBis properly

placedontopoftheequipment,andthepreheattemperatureis

reached.

2. SetthereworkingtimebyselectingbuttonsC5andC6fromthe

controlpanel.Notethatthetimeisinsecondsunit.

3. ActivatetheIRweldingtemperatureusingbutton,C1,andadjust

thetemperaturebyselectingbuttonsC2andC3.

4. Activateautomateswitch,C4.

5. TheIRsolderlightgunwillworkuntilthetimehaselapsed.

NOTE:

● Timeis configurablefrom 20 to9999seconds witha 20second

increment.

● ThecountdownwillpauseifC1buttonisdisabledwhileC4isON.

ItwillresumeonceC1isenabledagain.

OPERATINGPROCEDURES

aoyue Int720 User manual

Brand: aoyue

Model: Int720

Category: Soldering irons

Type: User manual

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aoyue Int720 User manual

aoyue Int720 User manual

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