B.853AA/853AAA
2).Move bracket card board,select the appropriate orientation will need to preheat
components placed above the preheat plate.Note bracket above two pallets mouth.
Note that bracket above two card board ports,usually with the following,if use above
bayonet,you need to preheat the components from the hot plate farther,preheat
temperature is a little lower.
3).Open the master switch on the back of the chassis
the open the preheating stage switch,the
set the appropriate temperature can be preheated
4). Preheat station, hot air reworks, soldering station can flexibility combination to use . Preheat
station,
hot air reworks, soldering station three functions are independent, you do not need to use
2
、
Hot air reworks part
1). The hot air gun rework station is laid out
→
handle frame is installed on the side of the chassis,
air gun bracket rack installed in the back of the chassis
→
fixed to the handle in the air guns handle
frame.
2).Open the back of the chassis whole switch
→
open air gun switch, air gun switch heating
→
press
air gun temperature plus button "
▲
or
↑
" and minus buttons "
↓
or
▼
" to set temperature
→
adjust
the airflow knob to set the appropriate airflow
→
Gun to be wind indicator regularly means the
flashing temperature stability will be able to normal operation.
3). After work, turn off the air gun switch, the machine automatically cut off the air gun heating body
the power to enter the cooling heating element mode. When the temperature is below 100 ° C, the air
gun display window goes off and stop the wind.
3.
Soldering station part
1).The soldering iron handle
→
handle on the iron holder.
2).Open the soldering iron power switch, heating elements begin to heating
→
press soldering iron
temperature plus button
“▲
or
↑
" and minus buttons"
↓
or
▼
"to set the appropriate temperature ,
when the soldering iron work indicator regular flash at high speed into the thermostat state can
work properly!
3).After work, you can use the residue under high temperature cleaning sponge cleaning up the
soldering iron lips and re-coated with a new layer of solder, the soldering iron into the iron hp;der
can turn off the power!
4.Attached:technical article-Rework the process(for refeerence only)
Air gun with preheating station,to facilitate the large flat IC,dual-panel large components
de-soldering.
Remove the components
The successful rework first component removal location of the fault on mother board,
and the solder is heated to the melting point,and then carefully scored the components
from the board.
Heating control is key factor in the rework,the solder must be fully melted,so as to avoid
injury in the removed component plate and copper.While the temperature is not too high,
to prevent the circuit board is heated excessively caused Motherboard distorted.
PCB and component heating
Advanced rework system uses a microcomputer to control the heating processs,with
solder paste manufacturer specifications given parameters as possible, and using a
combination of the top and bottom of heating.
Bottom heating to complement the board due to pass of heat, while elevated board
temperature;the top heating is used heating components,in addition the use of coders
bottom heater can be eliminated due to local over-heating the circuit board caused by
distortions.
1).Preheating station laid out plugged
preheat plate heating
Motherboard heating can be used three methods, namely conduction, convection, and thermaleffe
-rma effects. Conduction heating when the heat source with the motherboard contacts(for example,
using a hot plate),which on the rear components of the circuit board not applicable(NA);The thermal
effect of using an infrared(IR)energy,it is to be practical, but due to the board heating was proved is
reword and assembled in the most effective and the most practical
technology.
Components heating(or top heating)generally use a convection hot air nozzles,careful control
of top heating components uniformly heated isextremely important,especially for small quality
components is particularly critical(Figure 1).
Figure 1
To pay attention to avoid rework station nearby components reflow or blow away small chip
components,the hot gas stream discharged by the nozzle must be isolated with these elements,
the thin layer of shielding plate or the mask can be put in the surroungding components of the
reword station.Mask technology is quite effective,but more trouble consuming,but can be used
dedicated BGA rework nozzles,it can reduce the damage to the components in the vicinity of the
demolition components and circuit boards in the process of unsoldering.
Description for Function Setting
1.The temperature correction function setting(Figure 2)
In the case of the boot,to press the air gun and preheat the cool button for 3 seconds,then preheat
window will show the factory default the correction temperature“00”,If need to correct the working
temperature of the preheating stage or electric iron, you can press button heating and cooling to
make compensation of the respective temperature (compensation range:+50
℃
to
-
50
℃).
After4
seconds
,
the
program
and
exit
the
automatic
memory, display windows shows working
temperature, the setting is completed.
Air gun temperature down button
Preheating station teperature down button
Air gun temperature down button
Preheating station teperature down button
Figure 2
2.Celsius/Fahrenheit display the conversion feature setting(Figure 3)
In the case of the boot, pressing the air gun and the preheating station heating button for 3
seconds, then(853AA) the temperature display window shows“C or F”, (853AAA) “C or F” are
flashing in display window, then pressing air gun and preheat station warming button to set the
status of Celsius or Fahrenheit, after set 4 seconds and the program is automatically memory
setting and exit, the setting is completed.
3).Turn on thee heating switch,the preheat plate heating set the appropriate temperature can be preheated
