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, May 8, 2026

ASTER

The name may not ring a bell to many people in Singapore. And no, it's got nothing to do with the leading provider of chemical and energy solutions in Singapore and Southeast Asia by the same name.

Right after my last post, I was informed by my former manager that someone from ST Engineering, a deputy president of International & PSS/SG BizDigital Systems, asking for my contact. Soon after, someone by the name Leo contacted me. He introduced himself as a deputy general manager of ASTER, a subsidiary of ST Engineering specializing in Maintenance, Repair, and Overhaul (MRO) services for the Singapore Armed Forces.

Leo claimed that he and his team had read my books on PCB Reverse Engineering, and would like to invite me to tour their remanufacturing facility. That piqued my curiosity and I readily accepted the invitation.

We fixed a date in early April. I was given a VIP reception upon arrival and the heads of each section in turn introduced their workplace and process flow, accompanied by the DGM himself and a few support staff. It was quite an eye-opening experience to be given free access to their electronics lab, mechanical workshop, engine bay, and the various test setups. There were similarity in some of their work practices that I could identify with my former work centre, but the majority of what I observed were new to me.

I was deeply impressed by what I saw.

At the end of the tour, we adjorned to a cozy meeting room where refreshments awaited. The DGM asked for my opinion on their setup, and whether there are room for improvements in terms of the processes and practices. In all honesty, I was humbled by the thought that someone of my status, a secluded self-published author, was given such recognition and honor at an institutional-scaled setting.

We had a good time of discussion and the engineers present eagerly asked questions to tap on my experience in reverse engineering and obsolescence solution. I reckoned this first meeting would not be the last, as the DGM generously offered his team and facilities at my service for a possible future collaboration.

I took note of his kind offer and promised to get back to him and his lead engineer, once I am able to provide a viable solution to their black box issue in PCB reverse engineering. In the meantime, there will be a lot of catching up on my part to get up to speed on the subject of remanufacturing.


Ps: As I made my way out, one of the security guards, a retired civil servant, came and shook my hand. He recognized me as the author of an eschatological book he read, and expressed his appreciation for the insights gained from my theological work. Now, that really surprised me and make my day!