Sometimes in smps repair, you just dont know where the problem lies. A small load would not turn on the smps in fact it would cause the smps to shut down or even run at a lower voltage instead of producing 12 volt, the smps now only output 7 to 9 volts. I liked jestine yong testing methods and fully recommend his smps repairing e book to all repair techs. The title of the ebooks are lcd monitor repair, testing electronic components and find.
Imagine being able to repair many different types of smps, and make enough money. Testing smps electronics repair and technology news. Testing electronic components brought to you by jestine yong electronicrepairguide you cannot give this ebook away for free. This breakthrough course will walk you through my best strategies in solving many switch mode power supplies problems. Testing smps transformer without load jestine yong. I have tested the bridge rectifier, power fet and check the big filter capacitor and components in the emi filter circuit and found all of the. Troubleshooting and repairing of switch mode power supplies.
Jestine yong ebooks collect all of these great book of jestine yong and be an expert electronics repairer like jestine. My new smps modification repair ebook by jestine yong on july 12, 2014 after many hours of hardwork, finally my latest ebook on small switched mode power supplies modification secrets is launched. Read and explore of his repair technique by his ebooks. I am jestine yong and i am a specialist electronic repairer. I heartedly recommend this smps ebook by jestine yong to all friends and members of erg members and those who visits jestine yong s website.
Whenever a power supply sent for repair whether it is a monitor switching power supply or computer atx power supply i will test the power supply first before. If you would like to test the output of the smps then place your probe after the secondary diode output pin and check the dc voltage. Yesterday i sent an email to you about the testimonials that i got for my latest smps repair ebook and today i got another 6 testimonials. To become successful in repairing smps, you must have.
Troubleshooting and repairing atx power supply by jestine yong free download as pdf file. Electronic repair guides by jestine yong are one the finest and most informative electronics troubleshooting guides on the net. Ive just finished putting together a home study course about switch mode power supplies repair. Troubleshooting and repairing atx power supply by jestine yong.
How to easily perform voltage testing on smps circuit. About testing power ic by jestine yong on january 25, 2010 if i come across any smps fault that has many bad components in it, i will not replace the components and retest the power supply. Power supply repairtroubleshooting, testing, problems and failure. You can join and subscribe his blog here and learn a lot from him. By jestine yong on july 7, 2008 if you repair smps and wish to test it, make sure the load that you are using is big eough for the smps.
My new smps modification repair ebook by jestine yong on july 12, 2014 after many hours of hardwork, finally my latest ebook on small switched mode power supplies. Electronic components that breakdown when under full load. It is a common sense that if you get the right output voltage then thats mean the smps transformer is producing good ac voltage thus it is not necessary to check all the output pin of the smps transformer. By the way you cant test an atx power supply without load. Discharging switch mode power supply smps capacitors most smps have a. How to easily repair intermittent problems in electronic circuits.
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