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aoyue INT 738 User manual

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PartNo. Description
10094 Hotairgunheatingelement
30105S Plastichandleofhotairgun
S012 Hotairguncompletehandle
20962 Hotairgunmetalpipe
P005 DiaphragmPump
C001 SolderingIronheatingelement
3098S Plastichandleofsolderingiron
B004 SolderingIroncompletehandle
201701 SolderingIronTipenclosure
SPAREPARTSLIST
Manufacturer:
AOYUETONGYIINTERNATIONALLIMITED
JishuiIndustrialZone,Nantou,ZhongshanCity,
GuangdongProvince,P.R.China
http://www.aoyue.com
Professional Repairing System
INSTRUCTION MANUAL
ThankyouforpurchasingAoyueInt738ProfessionalRepairingSystem.
Itisimportanttoreadthemanualbeforeusingth eequipment.
Pleasekeepmanualinaccessibleplaceforfuturereference.
I
I
NT
NT
738 
738
2
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 .
23
AIRNOZZLES
Note:Theaboveitemsaresoldseparately.
22
Note:Theaboveitemsaresoldseparately.
REPLACEMENTTIPS
3
TABLE OF CONTENTS
Product Description ……………………………………… 4
Package Inclusion ………………………………..…..… 5
Spare Parts List .…..……………………..…….………… 5
Specifications ……………………………..……………. 6
Functions & Features ……………………….………….. 7
Safety Precautions ……….……………………….……... 7
Operating Guidelines
Control Panel ………………………………………. 8
Assembly and Preparation ……………………….. 9
Startup procedures ………………………………. 10
Hot Air Gun …………….………………...………… 11
Soldering Iron ………………………………..……. 15
DC Power Supply …..………………………..……. 16
Maintenance ……………….………………………..…. 16
Basic troubleshooting guide ……………………………. 20
Replacement Solder Iron Tips ……………………….… 22
Replacement Air Nozzles ...………………………..….… 23
4
PRODUCTDESCRIPTION
The Aoyue INT738 Professional Repairing System is a reworking
equipment that combines the functionality of a Hot Air Gun, Soldering
Iron,andSmokeabsorberinonesophisticatedpackage.
Oneofthenotablefeaturesofthisdeviceistheautocoolingprocess
of the Hot Air Gun. This functionality protects the device (and its
components) from excessive heat by blowing air (at room temperature)
uponachievinganyofthefollowingtwoconditions:(1)whenthesoldering
gunremainedidleonitsrestinghandleafteracertainperiodand(2)when
thetemperatureofthedeviceisaboveasafethresholduponturningoff.
Thiswillbediscussedinfurtherdetailtogetherwiththecompletefeatures
inthesucceedingsectionsofthismanual.
Finally, the unique, innovative design with digital control panel and
displayprovidesprecision,safety,andeaseofusetomatchallreworking
requirements.
21
PROBLEM6: AIR PRESSURELEVELIS SIGNIFICANTLYLOWNO
MATTERHOWHIGHTHEAIRFLOWLEVELISCALIBRATED
Case1:Checkthemainsvoltage(ACpowersource).Ifthevoltagelevel
fallssignificantlylow,about1520%lowerthanthest andard,th erewill
alsobeanoticeabledropintheairpressurelevel.
SOLUTION:Pleaserefertoyourlocalpowerserviceprovider.
Case 2: The microcontroller might have detected the operating
frequency incorrectly. The user will notice that airflow level is weaker
withreferencetotheairflowgaugecomparedwiththedisplayedvalue.
SOLUTION: Try to press the RESET button on the panel to let the
deviceredetecttheproperoperatingfrequency.
PROBLEM 7:SOLDERING IRON TEMPERATURE DISPLAY PANEL
SHOWS“PLUG”CHARACTERS
Case1:Thesystemshows“ ”fromthesolderingirontemperature
displaypanel.
SOLUTION1: Check if the soldering iron connection assembly is
properlyconnectedandsecuredtothereceptacleonthecontrolpanel.
SOLUTION2: Make  sure the soldering iron tip is properly inserted
andsecuredinsidethehandle.Losecontactsbetweenthetip andhandle
canalsocausethiserrormessage.
PROBLEM8:DISPLAYANDOTHERDEVICEOPERATIONISSUES
SOLUTION: TrytoswitchOFFthedeviceandswitchONagain.Unplug
the system from the main power source and plug in again when
necessary
OTHERPROBLEMSNOTMENTIONED:
Contactthevendor.
BASICTROUBLESHOOTINGGUIDE
20
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.
3. Checkthepowercordandmakesuretherearenodisconnections.
4. Verifythattheunitisproperlyconnectedtothepowersource.
PROBLEM2:TEMPERATUREDISPLAYISALWAYSABOVE500
o
C
Description: Constant display of above  500
o
C temperature from the
panelthendisplaysablinking“OFF”onthepanelafterafewminutes.
SOLUTION:
Thethermalsensormaybebrokenandneedstobereplaced.
PROBLEM3:ACTUALAIRTEMPERATUREISNOTINCREASING
Description:Actualtemperaturereadingisnotincreasingordecreasing
based on desired level.Thepanel willthen display ablinking“OFF” on
panel.
SOLUTION:
Theheatingelementmaybebrokenandneedstobereplaced.
PROBLEM4:THEUNITISVIBRATINGTOOMUCH
Checkifthe4screwsthatholdthepumpinplaceareproperlyandtightly
connected. Unplug the system from the main power source before
openingthecasetochecktheinternalsettings.
PROBLEM5:THEUNITISVERYNOISY
SOLUTION: Makesurethescrewatthecenterofthebaseofthemain
unit has been removed. This holds the pump in place during
transportationandneedstoberemovedbeforeusingtheequipment.
BASICTROUBLESHOOTINGGUIDE
5
PACKAGEINCLUSION
SolderingIronwith
SmokeAbsorber
30181XFilterPads
（6pcs.）
PowerCord
939Vacuum
SuctionPen
2630BSolderingIronHolder
withSolderWireStand
HotAirGunand
HotAirGunHolder
AirNozzles
(1124,1130,
1197,1010, 1313,
738MainStation
SolderingIron
SpareHeatingElement
G001ICPopper
6
SPECIFICATIONS
MAINSTATION
PowerInput: availablein110V/220V
StationDimensions: 188(w)x126(h)x250(d)mm
Weight: 6.3Kg
SOLDERINGIRON
PowerConsumption: 45W
TemperatureRange: 200°C480°C
HeatingElement: CeramicHeater
OutputVoltage: 24V
HOTAIRGUN
PowerConsumption: 550W
TemperatureRange: 100°C480°C
HeatingElement MetalHeatingCore
Pump/MotorType: DiaphragmPump
AirCapacity: 23l/min(max)
19
● SoldertheotherREDwireofheatingelementwithYELLOWwireon
PCB.
● SolderBLUEwireofheatingelementwithBLUEwireonPCB.
● SolderWHITEwireofheatingelementtowithBLACKwireonPCB
The5pinSolderIronsocketcanbetestedtodetectfaultsinthe
handpiece:
Beforeplugginginthehandpiececonductthefollowingtest:
If any of the above mentionedcombination registers a short review the
stepsinreplacingtheheatingelementtoensureproperconnections.
CAREandMAINTENANCE
Pins4&2 ∞
Pins4&1 ∞
Pins5&1 ∞
Pins5&2 ∞
Warning:Ensurenoneoftheabovementionedconditionsare
presentbeforeplugginginthehandpiece.Failuretodosocan
damagetheinternalcircuitryoftheunit.
Testtheresistancesofthefollowingconfigurations:
If resistance test conforms to the above tables then the soldering iron
hand piece is deemed working and can be plugged in to the Soldering
Iron receptacle for usage, if problems after installation of new heating
elementoccursreviewthepreviousstepstodoublecheckconnections.
Note:resistancevalueofsensor(Pins4&5)mayvaryaccordingtoambient
temperature
Pins1&2
19to23 Ω
Pins4&5
1.2to3Ω
Pin3&soldertip
Below2 Ω
18
To test if the heating element of the soldering iron is in working
condition:
Let whole assembly cool down to room temperature and unplug from
electricalsourcesbeforecontinuingthetestsbelow:
1. Followdisassemblingthehandpieceguide.
2. DothefollowingtestsonthehandpiecePCBboard:
Resistancevalueofheatingelement(RED)1923Ω
Resistancevalueofsensor(blue)1.2—3Ω
Note:resistancevalueofsensormayvaryaccordingtoambient
temperature
Aftertestingcheckresultswiththefollowing:
● If the resistance value is not as stated above replace the heating
element.
● Ifa0Ωorinfiniteresistancesaremeasuredcheckforshortsoropen
circuits.
● Itermittent readings can also be caused by cold solder double check
solderpointsiftheheatingelementhasrecentlybeenreplaced.
Theheatingelementcanbereplacedasfollows:
1. Followthestepsin“disassemblingthesolderingiron”.
2. Unsoldertheheatingelementwires(RED)andthesensorwires(blue).
3. The old heating element can now be detached from the hand piece
board.
4. Detach themetal protectorlocated atthe bottompart ofthe heating
element.
5. Reattach the metal protector to the bottom part of the new heating
element.
6. PasstheNewheatingelementswires(RED)thrutheholeslocatedon
topoftheboard.
7. Soldertheheatingelement’swiresandthesensorwirestotheboard
8. SolderoneREDwireofheatingelementwithREDwireonPCB.
CAREandMAINTENANCE
7
CAUTION:Improperusagecancauseseriousinjurytopersonnel
and/orextensivedamagetoequipmentandworkingarea.Foryour
ownsafety,pleaseobservethefollowingprecautions.
● MicroprocessordrivenESDsafeequipment.
● 3in1 repairingsystemcombiningHotAirGun,SolderingIron,
andSmokeabsorberinonesophisticatedpackage.
● Digital control and display of hot air temperature, soldering
irontemperatureandairpressure,.
● Programmabletimer functionality from 6to 9999 seconds for
automatingreworkingtasks.
● Userconfigurable 1 to 20minute idletoautostandbymode
(with5 minutesasdefault)foradditional deviceprotectionand
powersaving.
● Builtin autocooling process that protects the system and its
components from excessive heat, thereby, prolonging usage
life.
● Compatibilitywithvarioustypeofairnozzlesandsolderingiron
tips.(PleaserefertoMISCELLANEOUSsectionofthismanual.)
FUNCTIONSandFEATURES
● Check each component after opening the package to make
sureeverythingisingoodcondition.Ifthereareanysuspected
damage, don’t use the item and report the issue to your
dealer.
● Turn off power switch and unplug the unit from the mains
power sourcewhen moving the equipment fromonelocation
toanother.
● Donotstrikeorsubjecttheequipment(oritscomponents)to
physicalshock.Usecarefullytopreventdamageonanyparts.
● Makesuretheunitisalwaysgrounded.Alwaysconnectpower
toagroundedreceptacle.
SAFETYPRECAUTIONS
8
CONTROLPANELGUIDE
LEGEND:
1—AirGauge
2—HotAirGunTemperatureControlButtons
3—AirPressureControlButtons
4—AutoReworkTimeAdjustmentButtons
5—SolderingIronTemperatureControlButtons
6—HotAirOutputTerminal
7—Smokeabsorberconnector
8—SolderingIron5PinConnectingTerminal
9—Mainpowerswitch
10—Functionselector
11—HotAirGunTemperatureDisplay
12—HotAirGunPressureDisplay
13—AutoReworkTimeDisplay
14—SolderingIronTemperatureDisplay
15—HotAirGunActivationSwitch
16—AutoReworkingActivationSwitch
17—Reset
18—SolderingIronActivationSwitch
19—Vacuumindicator
738
Power
Vacuum
Smoke
absorber
SMD
REWORK
15
16
17
18
19
17
STEPSinChecking,CleaningandTinningtheTip
1. Settemperatureto250°C(482°F)
2. After real temperature reaches the set temperature, use a damp
spongetocleanthetipandcheckfordamages.
3. If the tip has oxidation, apply solder and wipe using  the damp
sponge,repeatthesestepsuntiloxidationisremoved.
4. Aftercleaning,coat tip with a thinlayer of solderand setit aside
readyforthenextusage.
5. Ifthetipshowsdisfigurationorhasrustonit.Changethetip.
The hand piece may be disassembled for trouble shooting and
repair:
1. Turnofmainstationandunplugfrompowersource.
2. Detach the soldering ironplug(”15”asshown in thefigure below)
fromthemainunit.
3. Turnthenut,(“1”asshowninthefigurebelow)counterclockwise.
4. Pulloutthetipenclosure(“2”asshowninthefigurebelow),thetip
(“3”asshowninthefigurebelow),andthetipstand(“4”asshown
inthefigurebelow).
5. Turnthefrontmodule(“5” asshowninthefigurebelow)counter
clockwisetoreleaseitfromthemainbody.
6. PushouttheHeatingelement(“6”asshowninthefigurebelow)via
thecord(“14”asshowninthefigurebelow).
CAREandMAINTENANCE
16
A. ReplacingtheHotAirGunheatingelement
1. Removethe screwswhichsecurethehandle andslidethecord
tube.
2. Open thehandle. Disconnect the ground wire and remove the
pipe.
3. Removetheheatingelementbydisconnectingtheterminal.
4. Insertanewheatingelementandreconnecttheterminal.Handle
theheatingelementwithcare.Neverrubitswire.Reconnect
thegroundwireafterreplacingtheelement.
5. Assemblethehandleinthereverseorderofdisassembly.
B. CarefortheSolderingIrontip.
Alwayskeep thesolderplatedsectionof thetipcoatedwith asmall
amountofsolder.Ifthetipiscoatedwithoxide,thetip’sheatconductivity
will be lowered. Coating the tip with a small amount of fresh solder
ensuresmaximumheatconductivity.
OPERATINGPROCEDURE
E..SMOKEABSORBER
1. Wait until the soldering iron reaches the set temperature and
stabilizes.
2. SetVacuumControlto
smokeabsorber
.
3. CheckiftheVacuumIndicatorlightsup.
4. Fumesabsorbedwillpassthroughafilterandbeblownoutthruthe
hot air gun. So thesmoke thatis blownout from thehotair gun
duringsolderingisalreadyfiltered.
IMPORTANT: Filters should be cleaned and replaced
regularlysothatitwouldnotclogup theair pathand will
effectivelycleanthetoxicfumesproducedduringsoldering
process.
CAREandMAINTENANCE
9
A. SolderingIron
1.InstallthesolderwiretothesolderingironholderasinFigure2.
2. Connect the soldering iron cord assembly to the 5pin output
terminalfoundatthelowerportionofthemainunit.Pleasereferto
item8fromtheControlPanelGuide.
3.Placesolderingirontothesolderingironstandasshownabove.
B.HotAirGun
TheHotAirGunholderwasinstalledonthestationupsidedown
forpackagingpurpose.TosetuptheHotAirGunholder:
1. Loosenthetwoscrewsthatsecuretheholdertothestation.
2. Turntheholderrightupside.
3. Fastenthetwoscrewsback.
4. Placethehotairgunontheholderinpreparationforusage.
Note:Makesurethescrewatthecenterofthebaseofthemainunit
hasbeenremoved.Thisholdsthepumpinplaceduringtransportation
andneedstoberemovedbeforeusingtheequipment.
C.SmokeAbsorber
Attachthesmokeabsorbingtubetothevacuumcap.Makesurethat
thecordconnectionsarefreefromanytangles.
Figure2.Solderingironstandwithsolderwireholder
ASSEMBLYandPREPARATION
10
OPERATINGGUIDELINES
IMPORTANTREMINDERS:
1. Makesuretheequipmentisplacedonaflatstablesurfaceand
all its heatgenerating components placed on their respective
holders/stands.
2. EnsureallswitchesareOFFpriortoreworking.
3. Ensureallterminalconnectionsareproperlysecured.
A.STARTUPPROCEDURE
1. Plugthedevicetothemainpowersource.
2. SwitchONthedeviceusingthemainpowerswitch(item9onthe
CONTROLPANELGUIDE)foundatthelowerrightportionofthe
controlpanel.
3. Thedisplaypanelwillshowtheproductnamemomentarilyandthen
“OFF”oneachlineofthepanel,providedallfunctionswitchesare
deactivated.Seebelowforillustration.
4. Theairgauge(item1)willalsoappearilluminatedbyamplelightand
themetalballinsideisatthelowestpositionofthevisiblearea.
5. Thesystemwillremaininthisstateuntilafunctionisactivated.
NOTE:PleaserefertotheCONTROLPANELGUIDEifneeded.
15
C.AUTOMATEHOTAIRREWORKING
1. Turnonthehotairgunfunctionswitch,andsettothedesired
reworkingtemperature.Turnofhotairgunfunctionswitch.
2. Turnontheautomatefunctionswitch,”16”fromthepanel,Setthe
timebyusingtheup/downreworktimebutton,”4”fromthepanel.
Itispresetat300seconds.
3. Afterpreferredautomatereworktimehasbeenset.Turnonthehot
airgunfunctionswitch.
4. Timerwouldstartcountingdownwhentheactualhotair
temperaturehasreachedthesettemperature.Onceautomate
reworktimeisfinished,itwouldcooldownautomatically,and
displaytheletters“End”indicatingautomateprocessisfinished.
5. Toresumemanualhotairreworkingdepressautomatefunction
switch.
D.SOLDERINGIRON
1. CheckiftheSolderingIronisattachedproperlytothe6pin
receptacleandthevacuumtubeissecurelyconnected.
2. TurnonthePowerSwitch.
3. PresstheSolderingIronfunctionswitchtoturnonsolderingiron.
“18”fromthepanel.
4. Whenthedisplayshowstheword“PLUG”checktheconnectionof
thesolderingirontoitsreceptacle.
5. TheSolderironissettoautomaticallyincreasetemperatureto249°
Cuponturningon.Itwillshowthesettemperaturewhenyouare
adjustingthetemperature,thenitwillautomaticallyswitchto
displaytheactualtemperaturewhenyouhavefinishedsettingthe
temperature.
5. Setthetemperatureusingtheup/downSolderironbuttons,”5”
fromthepanel
6. Startusingwhenrealtemperaturereachesthesettemperature.
OPERATINGGUIDELINES
14
OPERATINGGUIDELINES
Autosleep mode — unit is also programmed to have an autosleep
mode,thisisactivatedwhenhotairgunisturnedonbutisplacedonthe
hot air gun holder and not put to use for set amount of minutes,
temperatureautomatically decreasesandeventuallyturnsto sleep mode.
When the handle is held up again the unit will go back to its previous
setting.
SleepModeTimerSetUp
1. SwitchtheunitON(orpress“Reset”button,fromthepanel).
2. Press and hold hot air gun up button, while the Name and  model is
displayed.
3. Display panel, willinitially indicate ‘05’, whichmeans the devicewill
switchto sleep modeafter 5 minutes(default)ofidle timeandifthe
nozzleisdockedonthehandleforthedurationoftime.
4. Adjust the time before sleep by pressing air pressure up and down
buttons.
5. PressHotairgundownbuttontoconfirm.
6. Thedevicewillstartcountingdownwhenthehotairgunisdockedon
thehandle.Oncecountdownis fi nishedandthehotairgunstilldocked,
the device will automatically blow air (at room temperature) to bring
downtemperatureto90
o
C.Thepanelwillthendisplayfourdashes“
“toindicatethatthedeviceisnowinsleepmode.
NOTES:
● Timeisconfigurablefrom1to20minutes(default5minutes).
● Thedevicehasaswitchlocatedatthehandle(cradle),whichactivates
thecountdownbeforethesystemgoestosleep.
● Oncethehotairgunisreleasedfromthehandleduringsleepmode,
the unit will automatically switch back to previous working
temperatureandairflowlevelparameters.
● Timer settings defaults back to 5 minutes every time the unit is
powereddownortheresetbuttonispushed.
11
OPERATINGGUIDELINES
B.HOTAIRGUN
1. SwitchONtheequipmentbyactivatingmainpowerswitch(9).
2. ActivateHOTAIRGUNfunctionswitch(15)fromtherightsideof the
controlpanel.
3. The system will immediately blow air from the hot air gun while
graduallyincreasingthe airtemperatureto thedefaultvalue of99°C.
Theballinsidetheairgaugewillalsosettlesomewhereinthemiddleof
the visible area, corresponding to an air pressure level of 50. The
display area for hot air temperature and air pressure level, items 11
and 12, respectively, will show the
following.
4. AdjustairpressureusingtheAIRPRESSUREcontrolbuttons(3).
5. AdjusthotairtemperatureusingtheHOTAIRGUNtemperaturecontrol
buttons(2).Note:Whenincreasingordecreasingtheairtemperature,
the  prefix of the display area  for hot air gun temperature (11) will
temporarily change from uppercase “H” to lowercase “h”, indicating
that heat is being adjusted. Once the buttons are released, it will
switch back to its original case while the temperature value also
gradually increases or decreases anduntil the desired temperature is
reached.
12
OPERATINGGUIDELINES
6. Youmaystartreworkingassoonas thedesiredairtemperatureand
airpressurelevelsarereached.
7. . When reworking is complete, place the Hot Air Gun back to its
holder.
8. DeactivatetheHOTAIRGUNfunctionswitch(15).Thesystemwill
immediatelystarttheautocoolingprocess.
Note:Duringthisprocess,thesystemwilltrytoreleaseexcessheatby
blowingair(atroomtemperature)untilitreachesasafe temperature
valueof85°CbeforecompletelyswitchingOFF.
9. Wait fortheautocoolingprocesstofinishbeforeswitchingOFFthe
main power switch(9).If the display panel shows “OFF”on each
line,thenitisnowsafetodoso.
10. Unplugthedevicefromthemainpowersource.
IMPORTANT:Remembertosetairflowlevelfirstbeforesettingthe
temperaturesothatitwouldnotdamagetheheatingelement,causingittobe
burntoutprematurely.Thiswouldhelplengthentheusagelifespanof the
mainunitandtheheatingelement.
IMPORTANT:Airflowlevelshouldbesetaccordingly,workingwithlow
airflowandhightemperatureoftencausesheatingelementtogeteasilyburnt.
13
OPERATINGGUIDELINES
Autocoolofffunction
1. Whenreworkingis complete, return the Hot Air Gun to its holder
andDO NOT immediatelyunplugthedevicefromthemainpower
source.
2. Deactivate the HOT AIR GUN activation switch first in order to
activatetheautocoolingprocess.Thesystemwillstarttoblowair
(at room temperature) at maximum rate to reduce heat from the
hotairgunandbringthetemperaturedowntoasafelevelof90°C.
Duringthis time, theprefixof hotair guntemperaturedisplay will
also change from “H” to “C” while temperature is gradually
decreasing. The air pressure level, likewise, will be at its highest
readingas indicatedfromthedisplay panel.Oncethetemperature
dropstoapproximately90°Cthehotairgunwillautomaticallystop
anddisplay“OFF”onthepanel. Itisnowsafetounplugthedevice
fromthemainpowersourceifthesystemreachedthisstage.
3. Unplugthedevicefromthemainpowersource.
4. Allow the device (and its components) to completely cool down
before keeping in a safe and dry place. (Optional but
recommended).
/