Aoyue Int 738h User manual

INSTRUCTION MANUAL

Thank you for purchasing Aoyue Int738H Multi-Function

Re-Working System.

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

Please keep manual in accessible place for future reference.

INT 738H

(Centigrade / Fahrenheit switchable)

Multi-Function

Re-Working System

AOYUE

TABLE OF CONTENTS

Product Description ………………………………………… 3

Specifications ………………………………………………… 3

Package Inclusion …………………………………………… 4

Functions and Features …………………………………. 5

Safety Precautions ………………………………………… 6

Assembly and Preparation ……………………………… 7

Control Panel Guide ……………………………………….. 8

Operating Guidelines ………………………………...…… 9—11

Auto-Sleep Functions …………………………………..… 12—13

Digital Calibration ……………………………………..…… 14—15

Centigrade/Fahrenheit switching…………………………. 16

Care and Maintenance …………………………………… 17

Basic Troubleshooting Guide …………………..……… 18—19

Air Nozzles ……………………………………………….…… 20

This manual is designed to familiarize and instruct the

operator with the proper usage 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 .

Manufacturer:

AOYUE INTERNATIONAL LIMITED

Jishui Industrial Zone, Nantou, Zhongshan City,

Guangdong Province, P.R.China

http://www.aoyue.co

The Aoyue INT738H Lead-Free Repairing System is a reworking

equipment that combines the functionality of Hot Air Gun, 70 watts

Soldering Iron and Smoke Absorber in one package.

It has several safety features such as the auto-cooling process of

the Hot Air Gun. This functionality protects the device (and its

components) from excessive heat upon reaching any of the following

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. It has several

advanced features such as solder iron digital calibration, configurable

auto sleep for hot-air and soldering iron and switchable centigrade or

Fahrenheit readout.

PRODUCT DESCRIPTION

MAIN STATION

Power Input : available in 110V / 220V

Station Dimensions: 188(w) x 126(h) x 250(d) mm

Weight: 5.6Kg

SOLDERING IRON

Power Consumption: 70W

Temperature Range: 200°C - 480°C

Heating Element: Ceramic Heater

Output Voltage: 24V

HOT AIR GUN

Power Consumption: 500W

Temperature Range: 100°C - 480°C

Heating Element Metal Heating Core

Pump/Motor Type: Diaphragm Pump

Air Capacity: 23 l /min (max)

SPECIFICATION

Specifications are subject to change without prior notice.

PACCKAGE INCLUSIONS

* Type of soldering tip included might change depending on availability.

** Kindly refer to soldering iron stand installation on page 7 for parts and

instructions.

1 unit Int 738H Main Station with Hot Air Gun and Holder

1 pack AT-7 Hot Air Nozzle Set(1124,1130.1197,1010,1313,1919 ,936

Sponge, Suction nozzle cover)

1 pc 20094 Spare Hot Air Gun Heating Element

1 pc T005 Soldering Tweezers

1 pc Tip Alignment Tool

1 pc B018 Solder Iron with Smoke Absorbing function

1 pack Soldering Iron Tips(9pcs) includes (T-B, T-LB, T-0.8D, T-1.2D,

T-1.6D, T-2.4D, T-1C, T-0.8C, T-0.5C)

1 pc C031 Heating Element

1 pc 2680 Soldering Iron Stand

1 pc Large Copper Ball

1 pc 932-3 Handle Vacuum Pick-up

1 pc G001 IC Popper

1 pc H036 Soldering Paste

1 pc Tool Box

1 pc M4 Nut

1 pc Instruction Manual

1 pc Power Cord

FUNCTION and FEATURES

●Microprocessor-controlled 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 with touch type panel controls for

precision and ease of use.

●Switchable temperature readout between Fahrenheit and

Centigrade.

●Integrated smoke absorber functionality with filter pad to

efficiently absorb and filter harmful fumes.

●User configurable 1 to 30 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, prolonging usage life.

●Built-in auto-sleep mode for soldering iron and desoldering gun.

●Compatibility with air nozzles of various types.

●Compatibility with different kind of soldering tips.

SAFETY PRECAUTIONS

CAUTION: Improper usage can cause serious injury to personnel

and/or damage to equipment. For your own safety, please observe

the ff. precautions.

●Check each component after opening the package to make sure

everything is in good condition. If there are any suspected damage,

do not use the item and report the issue to your vendor.

●Turn OFF the

Main Power Switch

and unplug the device when

moving the device from one location to another.

●Do not strike or subject the main unit to physical shock. Use

carefully to avoid injury and damage to any part.

●Handle with care.

- Never drop or sharply jolt the unit.

- Contains delicate parts that may break if the unit is dropped.

●Make sure the equipment is always grounded. Always connect

power to a grounded receptacle.

●Temperature may reach as high as 480°C when switched ON.

- Do not use the device near flammable gases, paper and other

flammable materials.

- Do not touch heated parts, which can cause severe burns.

- Do not touch metallic parts near the tip.

●Disconnect the plug from the power source if the unit will not be

used for a long period.

- Turn OFF power during breaks, if possible.

●Use only genuine replacement parts.

- Turn OFF power and let the unit cool before replacing parts.

●The unit may produce a small amount of smoke and unusual odor

during initial usage. This is normal and should not yield any

negative result when reworking.

●Soldering process produces smoke — use on well ventilated place.

●Do not alter the unit, specifically the internal circuitry, in any

manner.

ASSEMBLY and PREPARATIONS

A. Main Station

As soon as the equipment has been removed from the package,

REMOVE THE SCREW located at the center of the bottom of the

main unit. This screw holds the pump in place during transportation.

B. Soldering Iron Stand

C. Soldering Iron

1. Connect the soldering iron cord assembly to the soldering iron

output terminal found at the lower middle portion of the main unit.

2. Place the soldering iron to the soldering iron stand.

D. Smoke Absorber

1. Attach the smoke absorbing tube to the suction vacuum cap. Make

sure the cord connections are free from tangles.

F. 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 side up.

3. Re-fasten the two screws.

4. Place the hot air gun onto the holder in preparation for usage.

WARNING: Failure to remove the screw before using the

equipment can cause damage to the system.

CONTROL PANEL GUIDE

LEGEND:

1 — Air Pressure Gauge

2 — Hot Air Gun Temperature Adjustment Buttons

3 — Air Pressure Adjustment Buttons

4 — Soldering Iron Temperature Adjustment Buttons

5 — Hot Air Gun Output Terminal

6 — Smoke Absorber Terminal or Vacuum Cap

7 — Soldering Iron Receptacle

8 — Main Power Switch

9 — Soldering Iron Function Switch

10 — Soldering Iron Temperature Display

11 — Smoke Absorber Function Switch

12 — Air Pressure Display

13 — Hot Air Gun Temperature Display

14 — Hot Air Gun Function Switch

Prefixes

and

meanings:

“H” - actual temperature

“” - temperature being set

“C” - cooling down

“---” - sleep mode display

“OFF” - function deactivated display

Prefixes and

meanings:

“H” - actual temperature

“” - temperature being set

5 6 7

IMPORTANT REMINDERS:

1. Make sure the equipment is placed on a flat stable surface

and all the heat-generating components are placed on their

respective holders or stands.

2. Ensure all function switches are OFF prior to reworking.

3. Ensure all terminal connections are properly secured.

IMPORTANT: Please refer to the CONTROL PANEL GUIDE

page for buttons and display panel directory.

OPERATING GUIDELINES

A. INITIAL PROCEDURES

1. Plug the device to the main power source using the power cord

provided in the package.

2. With all function switches deactivated and all terminal connections

properly secured, switch ON the device using the

Main Power Switch

(“8” from the control panel).

3. The display panels, “10” and “12” will temporarily show the product

name in a scrolling manner and then display “OFF”on all rows once

the scroll is finished. The system will remain in this state until the user

activates a function.

B. HOT AIR GUN

1. Follow the initial procedures above, “A. INITIAL PROCEDURES”.

2. Activate

Hot Air Gun Function Switch

(“14” from the control panel).

3. The system will immediately start to blow air at an airflow rate of 50

while rapidly and safely increasing the air temperature to 100°C

(default system operating parameters). These values will be reflected

on the Hot Air Gun Air Temperature and Air Pressure display panels,

“13” and “12” from the control panel, respectively. The metal ball

inside the air pressure gauge (“1” from the control panel) will also

settle somewhere in the middle of the visible area indicating that the

system is blowing air at an average or normal rate.

OPERATING GUIDELINES

4. Adjust the air pressure level using the

Air Pressure Adjustment Buttons

(“3” from the control panel).

5. Adjust the hot air gun air temperature using the

Hot Air Gun

Temperature Adjustment Buttons

(“2” from the control panel). The

prefix of the display for Hot Air Gun Temperature will change from

“H” to “” indicating that temperature is being adjusted. It will return

to “H” (indicating actual temperature) while the temperature is

gradually increasing or decreasing until the set temperature is

reached.

6. Reworking task can be started 1 minute after the desired hot air

temperature and airflow level are reached, indicated on display

panels “10” and “12”, respectively.

7. When reworking is complete, return the Hot Air Gun to its holder

and DO NOT immediately turn OFF the

Main Power Switch

8. Turn OFF the

Hot Air Gun Function Switch

first in order to activate

the auto-cooling process. The system will start to blow air (at room

temperature) at a fast rate to reduce heat from the hot air gun and

bring down the temperature to a reasonable safe level of 90°C.

During this time, the prefix of the display for hot air gun

temperature will also change from “H” to “C” while temperature is

gradually decreasing. Likewise, the air pressure level is at its highest

reading as indicated from the display panel. Once the temperature

drops to approximately 90°C the system will halt and display “OFF”

on the panel. It is now safe to switch OFF the

Main Power Switch

9. Turn OFF the

Main Power Switch

10. Unplug the device from the main power source.

IMPORTANT: When adjusting the hot air gun temperature, it is

strongly advised to initially increase the airflow level in order to

manage the system temperature. This is to protect the heating

element inside the handle from excessive heat and avoid the pos-

sibility of subjecting adjacent components to thermal shock.

OPERATING GUIDELINES

NOTES:

1. Hot Air Gun Temperature is adjustable between 100°

and 480°C with an increment of 2° on each step.

2. Hot Air Gun Airflow Rate is adjustable between 10

and 100 with an increment of 2 on each step.

C. SOLDERING IRON

1. Connect the Soldering Iron connection assembly to the 6-pin

Soldering Iron Receptacle

located at the front of the control panel

(“7” from the control panel).

2. Follow the initial procedures (“A. INITIAL PROCEDURES”).

3. Connect the vacuum tube to the

Smoke Absorber Terminal

Vacuum Cap

(“6” from the control panel). If smoke absorber

function is to be used.

4. Activate the

Soldering Iron Function Switch

(“9” from control panel).

This will automatically start to increase the temperature of the

soldering iron to 350°C (default).

5. Adjust the soldering iron temperature using the

Soldering Iron

Temperature Adjustment Buttons

(“4” from the control panel).

6. If smoke absorber function is to be used. Activate the

Smoke

Absorber Function Switch

(“11” from the control panel).

7. Start using the soldering iron as soon as desired temperature is

reached.

8. When the task is finished, deactivate the

Smoke Absorber Function

Switch

9. Deactivate the

Soldering Iron Function Switch

10. Allow sufficient time for the soldering iron to cool down before

keeping in a safe storage.

AUTO SLEEP FUNCTIONS

A. Auto-Sleep Mode (Hot Air Gun)

The device has a built-in auto-sleep mode feature such that if the

Hot Air Gun sits on its handle and remained idle after a certain period

(the prefix of the display for Hot Air Gun air temperature will also

change from “H” to “L”) , the device will switch to sleep mode. This

mechanism is triggered by a countdown timer so when the time has

elapsed, the system will blow air (at room temperature) at maximum

rate in order to bring down the temperature. During this time, the prefix

of the display for Hot Air Gun air temperature will also change from “L”

to “C”. Once the temperature drops to approximately 90°C, the Hot Air

Gun will automatically stop and show an all-dash “- - - -”display

indicating that the system is now on sleep mode.

B. Changing SLEEP Mode Timer (HOT AIR GUN)

By default, the system has 5-minute countdown time before the

hot air gun goes to sleep mode. This can be altered by the following

procedure.

1. While the hot air gun is on stand-by mode (“OFF” is displayed

on the panels “13” and “12”), hold both UP and DOWN

buttons of the

Hot Air Gun Temperature Adjustment Buttons

2. Wait until “t005” is displayed on the Hot Air Gun Temperature

display panel, “13”.

3. Release the buttons when “t005” appears.

4. Adjust the time using the same UP and DOWN buttons of the

Hot Air Gun Temperature Adjustment Buttons

5. Confirm the change by activating the

Hot Air Gun Function

Switch

6. The system will immediately switch back to operation and use

the defined countdown parameter for the entire usage.

AUTO SLEEP FUNCTIONS

NOTES:

●The sleep mode timer is configurable between 1and 30 minutes.

●Sleep mode settings for Hot-Air Gun and Soldering Iron is saved

into the memory an shall remain effective until it is reset or new

data is entered.

C. Activating Soldering Iron Auto-Sleep Mode

The Soldering Iron’s SLEEP mode is deactivated by default. Follow

the set of procedures below to activate this feature.

CONDITION: SOLDERING IRON function is inactive.

1. While soldering iron is displaying “OFF”or in stand-by mode, push

both UP and DOWN buttons of the

Soldering Iron Temperature

Adjustment Buttons

(“4” from the CONTROL PANEL GUIDE page).

2. Wait until “t0FF” appears from soldering iron temperature display

panel. This means sleep mode is currently turned OFF.

3. Release the two buttons after the change in display.

4. Use the same two buttons to adjust the countdown time. “t001”

means solder iron will go to sleep in 1 minute. Timer is adjustable

from 1 to 60minutes.

5. Confirm the change by activating the SOLDERING IRON switch.

6. To DEACTIVATE this feature, simply follow the above procedures.

This time, select “tOFF” .

7. During sleep mode, the soldering iron temperature display panel

will show an all-dash, “- - - - ” .

8. To wake the soldering iron from sleep mode, press the soldering

iron temperature adjustment buttons.

Utilizing the Solder Iron Digital Temperature Calibration

By default, the system is properly calibrated but for cases when a

little adjustment of the soldering iron calibration is required the following

procedure can be done.

1. Turn ON the

Soldering Iron Function Switch

2. Set to appropriate temperature you want to calibrate. Place the

tip of the soldering iron on an external temperature sensor.

3. The readings on the external temperature sensor should be

more or less equal to the displayed temperature.

4. If there are large discrepancy in the temperature reading we

can re-calibrate the temperature setting.

5. While the solder iron is operating make sure the hot air gun is in

OFF mode (“0FF” is displayed on the panels “6” and “7”), hold

the air pressure UP button for a few seconds until four zeroes

are displayed “0000” .

6. Adjust the temperature compensation using the UP and DOWN

buttons of the

Soldering Iron Temperature Adjustment Buttons

7. A zero “0” on the first digit signifies addition to the current

temperature and a minus “-” on the first digit will subtract the

displayed value from the current settings.

8. Confirm the change by pressing the air pressure down button.

DIGITAL CALIBRATION

Initial display when

in calibration mode

Increase tempera-

ture by 38 degrees

Decrease tempera-

ture by 30 degrees

DIGITAL CALIBRATION

Solder Iron Digital Temperature Calibration Example

●The external temperature sensor displays 248 to 252 degrees.

●The set temperature and displayed actual temperature of the

soldering iron is 300 degrees.

●300 — 248 = 52. An additional adjustment of 52 degrees is

required.

●Enter calibration mode

●We increase from “0000” to “0052”.

●Exit calibration mode.

●The external temperature sensor would now display 298 to 302

degrees.

NOTES:

●The calibrated data is saved into the memory an shall remain

effective until it is recalibrated again or new data is entered.

●Calibration will only make the newly calibrated point the most

accurate. Other temperature points may be a little off.

●The soldering Iron has a lowest temperature limit such that when

the temperature has been set to 200 degrees with external actual

temperature also showing 200 degrees, further decreasing the

temperature offset would be only have minimal effect to the

actual temperature.

●To reset the calibration settings to factory setting, switch

OFF and ON the unit and while holding the hot-air temperature

up button until the banner finishes scrolling, the Set

temperature / Temperature calibration of the unit would revert to

its default factory setting.

CENTIGRADE /FAHRENHEIT

Part No. Description

20094 Hot air gun heating element

30106S Plastic handle of hot air gun

S009 Hot air gun complete handle

20962 Hot air gun metal pipe

B012 Soldering Iron complete handle

Spare Parts Guide

To switch between the centigrade and Fahrenheit scale

By default, the system is set to the centigrade scale, if the

Fahrenheit scale is preferred proceed with the following

procedures .

1. Turn OFF power to the main unit.

2. Make sure all function switches are in the OFF position.

3. Press and hold the down button of the soldering iron

temperature adjustment button while switching the main POWER

switch to ON.

4. The initial display would show a scrolling “AOYUE” name and

“768F” the “F” at the end of the model number indicates that

current settings are in the Fahrenheit mode.

5. To switch back to using the Centigrade mode, Press and hold the

up button of the soldering iron temperature adjustment button

while switch the main switch ON.

6. The initial display would show a scrolling “AOYUE” name and

“768C” the “C” at the end of the model number indicates that

current system settings are in the Centigrade scale.

CARE and MAINTENANCE

Blower/Vacuum Air Terminal Filters

Filters should be cleaned and replaced regularly to avoid dirt which can

clog the air passage. More importantly, this will also effectively clean

the toxic fumes produced during soldering process.

Soldering Iron Tip

Always keep the solder-plated section of the tip/nozzle coated with a

small amount of solder. Oxide coating on the tip of the nozzle reduces

its heat conductivity. Coating the tip with a small amount of fresh solder

ensures maximum heat conductivity is obtained.

Replacing the heating element of the Hot Air Gun

The heating element is found in the middle part of the hot air gun.

The normal life of a heating element is 1 year under normal operating

conditions.

Steps:

1. Loosen the 3 screws that secure the handle.

2. Slide off the plastic tube.

3. Disconnect the ground wire sleeve.

4. Inside the pipe, the quartz glass and heat insulation are

installed. Loosen the cable and take out the heating element.

5. Insert new heating element and reconnect the terminal.

careful not to rub Heating Element wire.

6. Reconnect the ground wire after replacing the element.

7. Assemble the handle again.

Soldering Iron Error Messages

1. Soldering Iron connection assembly is not connected

or not properly connected to the receptacle on the

control panel.

2. Soldering iron tip is damaged and needs to be

replaced. The device will display “PLUG”.

3. Indicating a problem with the contacts of the

soldering iron or the tip.

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.

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: HOT-AIR GUN TEMPERATURE DISPLAY IS ALWAYS

ABOVE 500oC

Description: Constant display of above 500oC temperature from the panel

then displays an “Err1” on the panel after a few minutes.

SOLUTION: The thermal sensor may be broken and needs to be replaced.

PROBLEM 3: HOT-AIR GUN ACTUAL AIR TEMPERATURE IS NOT

INCREASING

Description: Actual temperature reading is not increasing or decreasing based

on desired level.

SOLUTION: The heating element may be broken or is at the end of its life and

needs to be replaced.

PROBLEM 4: THE UNIT IS VIBRATING TOO MUCH

SOLUTION: 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 inside the station.

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.

PROBLEM 6: 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. Loose contacts between the tip and handle can also cause

this error message.

SOLUTION 3: See “Soldering Iron Error Messages” on page 21 for further

details.

BASIC TROUBLESHOOTING GUIDE

PROBLEM 7: 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 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: Turn off the unit and on again to let the device re-detect the

proper operating frequency.

Case 3: The Suction Vacuum cap is connected to the Smoke Absorber

Terminal or Vacuum cap instead of the Wire mesh cap.

SOLUTION: Change the cap to the Wire mesh cap. This allows more air to

pass through the system. Make sure as well that the vacuum tube of the

soldering iron or desoldering gun is not connected.

Case 4: The Wire mesh cap is connected but airflow level is still low.

SOLUTION: Check the filter pad inside for dirt that can block the air passage.

Clean or replace if necessary.

ADDITIONAL SOLUTION: Check for any tangles in the tube of the hot air

gun that can cause the air blockage.

PROBLEM 8: UNIT SHOWS UNCONVENTIONAL BEHAVIOR

Description: Unit operates erratically.

SOLUTION1: Try to switch OFF the device and switch ON again. Unplug the

system from the main power source and plug in again when necessary

SOLUTION2: Restore unit to default factory setting. switch OFF/ON the unit

while holding the hot-air temperature down button until the banner finishes

scrolling, the unit would revert to its default factory setting.

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