To My Readers



If this is the first time you're visiting my blog, thank you. Whether you're interested or just curious to find out about PCB reverse engineering (PCB-RE), I hope you'll find something useful here.

This blog contains many snippets of the content in my books to provide a more detailed overall sampling for my would-be readers to be better informed before making the purchase. Of course, the book contains more photos and nice illustrations, as evidence from its cover page. Hopefully, this online trailer version will whet your appetite enough to want to get a copy for yourself.

Top Review

I started doing component level repair of electronics with (and without) schematics more than 40 years ago, which activity often involves reverse-engineering of printed circuit boards. Although over the years my technical interests have shifted into particle beam instrumentation, electron microscopy, and focused ion beam technology fields, till this day——and more often than not——PCB repairs have returned multiple multi-million-dollar accelerators, FIB, and SEM instruments back to operation, delivering great satisfaction and some profit.

Many of the methods described by Keng Tiong in great details are similar to the approaches I've developed, but some of the techniques are different, and as effective and useful as efficient and practical. Systematic approach and collection of useful information presented in his books are not only invaluable for a novice approaching PCB-level reverse engineering, but also very interesting reading and hands-on reference for professionals.

Focus on reverse engineering instead of original design provides unique perspective into workings of electronics, and in my opinion books by Keng Tiong (I've got all three of them) are must-read for anybody trying to develop good understanding of electronics——together with writings by Paul Horowitz and Winfield Hill, Phil Hobbs, Jim Williams, Bob Pease, Howard Johnson and Martin Graham, Sam Goldwasser, and other world's top electronics experts.

Valery Ray
Particle Beam Systems Technologist

Friday, March 11, 2022

Out of the Woods, Finally...

Since contracted the Omicron variant two weeks ago, we were basically out of action for one week due to symptoms of fever, cough, and muscle aches for myself. One week into recovery, we did another ART as instructed in the protocol. My wife came up negative but I was still positive, albeit the T line was much fainter:

Today, after 14 days and feeling much better without any more symptom, I did an ART after breakfast. This time I am finally cleared and good to go:

While the Omicron symptoms are considered 'mild' compared to the Delta variant, it still feels terrible once you are down with it. Having to struggle with body fatigue while working on my book is certainly no small feat. The physical discomfort does affect the mental capacity.

Thankfully with this episode behind me, I hope to catch up on lost time.

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