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  • power supply repairing
    About Conceptronic 90W Power Supply (Part 2)

                The first part can be accessed in the below link: https://www.jestineyong.com/cracked-power-ic-in-power-supply-identified/ I replaced yesterday the defect components by all new parts from China after almost 4 weeks of waiting. And I...

    • Posted May 8, 2015
    • 12
  • toshiba led tv repair
    Toshiba LED & LCD TV Case History Volume 1

                      Damon has just launched his 8th ebook and the title is  “Toshiba LED and LCD TV Case history Volume 1”. Please click on the ebook cover or HERE...

    • Posted May 6, 2015
    • 1
  • clp-315 laser printer repairings
    Samsung CLP-315 laser color printer refuse new toners problem

                  A customer brought to me a Samsung CLP-315 color laser printer with the problem “ the printer refuse to use the new installed toners.” The problem is specific because sometimes...

    • Posted May 6, 2015
    • 7
  • eltectvrepairing
    20 inch TRC TV repaired

                    I went to my friend’s house for a visit and he asked me to take a look at his old TV which was not working properly. It was an old...

    • Posted May 6, 2015
    • 11
  • power adapter repair
    Repair of a switching power adapter without any switching controller chip!!

                  Nowadays most switching regulators are controlled by some kind of Pulse Width Modulated (…GREEN) controller IC. But here’s an example without any controller chip. The adapter is a SUNNY 12Volt...

    • Posted May 2, 2015
    • 21
  • bios eprom
    About Computers and Boot E/Proms (BIOS)

                    Many of us about 40 will remember the SF Blake 7 series (British-TV). (Otherwise the whole series probably is for sale at your local Store on DVD – I...

    • Posted May 2, 2015
    • 6
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