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Suoer Digital Meter That Does Not Easily Power On

By on September 23, 2021
multimeter repair

It is my digital meter that was purchased about a year ago, that refused to power on, I guess the power switch is faulty. So I decided to repair it. Open it up and this is the PCB board.

digital multimeter pcb board

I couldn’t get exact size of switch, but I got a slightly bigger one which couldn’t fix into six holes for it on PCB board because of its size.

So I modified it. I soldered thin copper wire on relevant pins (4pins) on switch and other ends of wires on switch pads of PCB,use glue also on it.

modify switch in multimeter

how to repair a digital multimeter

But then switch couldn’t fix into right place on metre power space, so I made a hole through by LCD screen left side and pass switch through it and hold with glue also, making sure switch does not rest on LCD screen.

This is the picture of finished work. Meter now working perfectly with good reading.

how to fix a digital multimeter

imoudou onwumah

This article was prepared for you by Imoudu Onwumah from Nigeria. He is 62 years old and has just 3 years experience in electronics repairs. I started career in hotel industry as a chef, but then I was doing repairs only in electrical repairs as a  hobbyist. In 2018, I decided to learn about electronics which through Jestine’s electronics e-books and holding my hand, am an electronics  techie today.

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  1. Babu M.S

    September 23, 2021 at 9:51 pm

    Very good job done with in three years experience. This act shows you will be
    a great tech in electronics in future.Thank you very much for sharing.

  2. William Shaw

    September 23, 2021 at 10:46 pm

    I it's great when something that otherwise would have been discarded is saved through clever work.

  3. Albert van Bemmelen

    September 24, 2021 at 1:24 am

    Finding the right fitting tiny parts can always be a big problem! But luckily you fixed it and have your still almost as new DMM back!

  4. Imoudu Onwumah

    September 24, 2021 at 6:23 am

    Babu M.S
    Thanks for your comment,all appreciation to my mentor/instructor,Jestine Yong.

  5. Imoudu Onwumah

    September 24, 2021 at 6:41 am

    It's my pleasure hearing from you.In my country,there is nothing like e-waste recycling process,so this is techies little contributions saving our oceans from being polluted by these e-wastes,while making money too!!

  6. Parasuraman S

    September 24, 2021 at 11:49 am

    Well done, as saving an accustomed tool would be great!

  7. coker yusuf

    September 24, 2021 at 8:12 pm

    Good day sir
    Even though we both started the same year but I want to know about electronics from you because u are in Nigeria

  8. Imoudu Onwumah

    September 25, 2021 at 6:28 am

    Mr Albert B, Mr Parasuraman.S

    Many thanks to you two,I have learnt a lot from your articles.I'm still looking forward to gain more from you.

  9. Imoudu Onwumah

    September 25, 2021 at 6:48 am


    Thanks my brother, what you have to do is, keep on practicing more on repairs on daily basis,even the smallest appliances like phone charger, torch light,energy saver bulbs etc. keep yourself busy repairing one thing or the other.Also acquire knowledge from Jestine e-books if you have the budget.All these I did and within one year I was able to repair a 32" led tv.

  10. Yogesh Panchal

    September 27, 2021 at 6:37 pm

    Imoudu Onwumah
    Welcome! to the blog,Good fix keep sharing your experience.

  11. Imoudu Onwumah

    September 28, 2021 at 4:59 am


    Thanks! I hope to have more opportunities to write.


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