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PRODUCT DESCRIPTION 

The  Aoyue  I

NT

738  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 auto­cooling 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. 

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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 15­20% lower than the standard, there 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 re­detect the proper operating frequency.

 

PROBLEM  7:  SOLDERING  IRON  TEMPERATURE  DISPLAY  PANEL 

SHOWS “PLUG” CHARACTERS 

Case 1: 

The system shows “

PLUG

” from the 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

Summary of Contents for INT 738

Page 1: ...n 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 w...

Page 2: ...he 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...

Page 3: ...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...

Page 4: ...r source If the voltage level falls significantly low about 15 20 lower than the standard there will also be a noticeable drop in the air pressure level SOLUTION Please refer to your local power servi...

Page 5: ...splay 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 properl...

Page 6: ...g 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 MAINT...

Page 7: ...oard 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...

Page 8: ...ture 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...

Page 9: ...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 so...

Page 10: ...n 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...

Page 11: ...ed at the handle cradle which activates the countdown before the system goes to sleep Once the hot air gun is released from the handle during sleep mode the unit will automatically switch back to prev...

Page 12: ...ld 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...

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