Page 95 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

• Depending on the size of the IC, Choose the appropriate wire for the IC.

• Select the Nozzle that matches the size of the IC.
• Attach the nozzle when both the Pipe and the Nozzle are cool.
• Loosen the screw on the nozzle
• Attach the Nozzle as shown in the drawing.

• Fasten the screw properly.
The display and temperature setting
The digital display
1 shows the actual temperature of the nozzle of the hot air gun.
2 shows the setting temperature. Pressing the “UP” or “DOWN” button can switch the digital display to the set
point display. The set-point can be changed for ±1°C by tapping the “UP” or “DOWN” button. Pressing the
button will change the set-point quickly. The digital display will return automatically to the actual value and the
iron will reach to the setting temperature quickly.
3 °C°F/ display: Switching the temperature display from to by pressing the “ / ”button °C°F°C°F and then the
electronic system will display the actual temperature and setting temperature in 1 2 °F and vice versa.

4 When the actual temperature of the nozzle is less than the set-point, “HEAT ON” will display and make the
nozzle heat up.
5 When the difference is more than ±10°C between the actual temperature and the set-point of the nozzle,
“WAIT” will display. It means that the temperature electronic control system is not in the stable situation, Wait
a moment to let the “WAIT” disappear.

6 When “ERROR” display, there may be a trouble on the system, or the soldering iron is not connected to the
control system correctly. 2-3 QFP Desoldering
• Plug the power cord into the power supply. After connection, the automatic blowing function may start
sending air through the pipe, but the If the width of the IC does not match the size of the FP Pick-up, adjust
the width of the wire by bendng the wire.
• Melt the solder hold the iron so that the Nozzle is located directly over, but not touching the IC, and allow
the hot air to melt the solder. Be careful not to touch the leads of the IC with the nozzle.
• Remove the IC. Once the solder has melted, remove the IC by lifting the FP Pick-up.
• Turn the Power Switch off. After the Power Switch is turned off, an automatic blowing function begins
sending cool air through the pipe in order to cool both heating element and the handle. In case you don’t
use the unit for a long time, disconnect the plug.
• Remove any remaining solder. After removing the IC, remove remaining solder with a wick or desoldering
tool.

NOTE: in case of SOP, PLCC desolder it by using tweezers, etc.

Tabulation:
Specification
Rated power 320w

Input voltage AC 110-130V,60Hz
Air Pump Diaphragm pump
Capacity 24L/min (max)
Hot Air Temperature 150-5000 C
Sensor Type K thermocouple

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CITS : E & H - Electronics Mechanic - Exercise 139