Certain semiconductors like diodes, IC’s and Transistors can be tested good but it will fail when under load. Upon careful inspection, sometimes you could see very tiny pinhole at the outer layer of the component. In the...

My friend John Preher has just put up a new forum on electronic repair. This forum can be a good place for you to discuss on electronic repair and related subjects. Feel free to post in your...

This is a five in one Multifunction Oscilloscope and the product description is as below: 50M samples / 10MHz digital Oscilloscope Analog bandwidth: DC~25MHz  3dB; 20mV/div~5V/div; Max 30MHz; Three measuring Method in Oscilloscope Mode: Normal/Video/Single 40 Groups...

The other day i got a call from a Tv repair friend to help him to program EEprom ICs. This EEPROM IC is belong to a Car Tyre Alignment machine. I went to his shop and saw...

I suggest that you print out this images of CRT TV/Monitor display problems for reference. To some beginners, they do not know how a pincushion or a keystone distortion problem look like. It is important to know...

Hi Jestine Yong, I want to let you know that I have retired from the industry and that I have enjoyed your newsletters. I’ve learn a great deal from them and I was able to reduce the...

Likes(1)Dislikes(0)

If you are from USA and wish to learn Laser Printer Repair then you can visit David’s website by clicking on the photo above. Here is the excerpt from his website: “ProTech Printer Solutions offers a variety of options...