Testing Equipment | Electronics Repair And Technology News

Blue Ring Tester Goes Packing Up

Jestine Yong — Sat, 13 Dec 2025 05:17:44 +0000

This my blue ring tester stop functioning, so I decided to take it for checks. I did wonder why it pack up after a few years of use, for the fact I hardly use it, we all know we don’t frequently use it as other tools. So open it, having […]

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Repair Of ESR Meter

Jestine Yong — Sat, 28 Jun 2025 08:59:22 +0000

This my esr metre’s press on/off button has being malfunctioning for some few months back, so I thought it wise to do the need full about it. Open cover case, clean little dust inside and inspect the power on button and I discovered part track and solder pad was ripping off and arm […]

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Fixing A Defect But Brand New UNI-T Tweezer Tester

Jestine Yong — Fri, 26 May 2023 22:31:02 +0000

On 12 March 2023 a brand new Uni-T UT116A SMD tweezer tester was ordered from the Uni-T meter store and received about 8 days later in that month. Although everything worked it had a bad sliding function selection switch from the start that needed a lot of sliding force to move it into position. And […]

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Intermittent Problems In METROQ MTQ4070 LCR Meter Solved

Jestine Yong — Fri, 27 Aug 2021 05:05:49 +0000

This LCR meter was bought by me a few years back and seldom used. When I took it for use recently, it was working intermittently. The on/off switch was not making proper contact. Even when the display comes, some of the ranges were not working. Sometimes the probes […]

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Leaked Capacitors Caused Dim Display And ‘Low Battery’ Indication In PEAK ATLAS DCA55

Jestine Yong — Mon, 10 May 2021 02:27:07 +0000

This is my handy tool and when it showed ‘low battery’, I opened it for replacement and found that the battery had leaked and corroded the contacts. This was a few months back. I had cleaned the board thoroughly and connected it to a 12V adapter to avoid repetition of […]

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Strange Power Supply Tester Result

Jestine Yong — Sat, 27 Feb 2021 04:02:04 +0000

Yesterday my desktop power computer user friend brought over 2 of his now defect ‘bigger’ power supply units for repair. One was 650W, and the other one was 850W. I tested both smps units with my special made 75Watt safety bulb power box placed in between the 230VAC power line input to both supplies. The […]

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Another Adapter Repaired 4.2V 0.5A And Tested Using Supertip

Jestine Yong — Fri, 22 Jan 2021 06:42:06 +0000

This small adapter repair was put aside for quite some time after I already had repaired all obvious defects and had also fixed a burned through copper track. And because the 4.2V 0.5A adapter board still refused to start working after all the destroyed parts were replaced I once and a while picked it up […]

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DY294 Supertip To Safely Test Small SMPS Adapters

Jestine Yong — Sat, 16 Jan 2021 12:41:20 +0000

I always wondered if there was a safer and easy way to test small smps power adapters without having to connect them to the dangerous deadly AC power lines anymore. And with all the analyzing tools in the electronic engineering world if such a tool maybe already existed? The best tester we know about which […]

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Made An ECL82 Output Vacuum Tube Tester

Jestine Yong — Fri, 13 Nov 2020 10:15:23 +0000

I have quite a lot of vacuum tubes in my collection. As a few of my friends were asking for ECL82 Amplifier Output Valve, I wanted to check the conditions of around 14 of them lying with me. I chose an ATX SMPS box from my junk collections for this purpose. Drilling a hole was […]

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Instant Make Vertical IC Checker

Jestine Yong — Tue, 27 Oct 2020 10:29:28 +0000

As a CRT TV under repair was causing problems in the vertical section inspite of the best trouble shooting methods employed, the doubt was naturally on the IC itself. But even when I replaced it, the problem could not be solved. Fake ICs are available in the market […]

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