global Laptop and motherboard repair tutorial | Page 54

I will take a minute here to Explain Hot Air Reflowing and Debunk the Myths Surrounding the use of
Hot Air as opposed to Infrared.
Use of a ―Hot Airǁ gun, if done right, will work exactly as a rework machine. After all, it is the
same exact setup as a rework machine except for the PCB braces, temperature dials and the metal
supporting arm to hold the heat source.
YouTube has given the whole Reflow process a ―badǁ name due to the knuckleheads using
hairdryers, torches, Bunsen burners, candles and so on… Even the ones using heat guns…
All they know is that they’re waving heat at the chip; yet have no clue why or exactly how… No
wonder they’re blowing up their machines and their repairs only last a week…
There are differences between the use of infrared and hot air, though the average person will not
be able to obtain or afford an expensive infrared rework machine, which is why this book will teach
you the Professional Reflowing Hot Air Method, For Use on Any and All Video Chipsets. Infrared
will transfer heat without overheating the surrounding areas; it is more constant source of heat and
will penetrate the PCB / ICs more rapidly. Though with the right heat gun and the right instructions,
hot air can and will obtain similar results. Infrared is recommended for Reballing and replacing the
GPU, but for reflowing (what is taught here), Hot Air is not only more cost efficient, convenient and
cost effective.
I have taught Universities, Colleges, Companies, Corporations, and Storefront Businesses all over
the world this Reflow method, most of who were using and continue to use Rework Machinery, Yet
are implicating my methods into their production for Cost effectiveness and Ease of use and the
stability of the process.
MONITORING THE TEMPERATURE DURING THE VIDEO CHIP