If you repair the computer power supply, CRT/LCD Monitor you may have come across the TL494CN IC. This IC is a pulse width modulation control circuit ic. You may access the technical information by clicking on the...

As for me i don’t teach printer repair. The printer repair course was conducted by my long time good partner Mr William. He has over 10 years of experience in Printer repair which include the inkjet, dot...

  A buyer of mine emailed me this: Jestine, I recently bought your book and am working on two Dell 1504FP LCD monitors. After working through the problems and solutions outlined I have found that one of...

I have a member who sent me photos of plasma TV power supply and the complaint was power problem. The first thing i saw from the photo was there were lots of decayed glue all over the...

This fantastic website by Sam Goldwasser has helped me in many ways especially dealing with the picture tube (CRT). If you are in the CRT TV and Monitor repair field  and haven’t read this article then you...

One of the best moment in my life was starting a repair shop 12 years ago. Although this is a partnership company, me and my partner had went through lots of obstacles and hardship in order to...

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Yesterday i received an email from a guy who asked me this question: “Justin, I am an electrical engineer who lives in the USA. I am currently designing a set of instruments for electronic repairs. Do you...