Comments on: Easy Ways To Troubleshoot and Repair Power Supplies https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Fri, 03 Aug 2018 18:02:47 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Christian Robert Adzic https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338745 Fri, 03 Aug 2018 18:02:47 +0000 https://jestineyong.com/?p=17407#comment-338745 In reply to Peter.

Hi Peter!
Between GND and VDD pins should be no readings in continuity testing.
That two pins are the ic power pin.
Imagine what would happen if you put a resistor of 30ohm between
GND and +5v or GND and +12v?
Can you figure out?

My best regards.

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]]> By: Peter https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338727 Fri, 03 Aug 2018 14:06:05 +0000 https://jestineyong.com/?p=17407#comment-338727 Good job done, question, what's the normal reading between these 2 pins of the pwm controller. Is it common we got an higher value than 30 ohms and how can one check it or find somewhere the right value of other pwm controllers.

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]]> By: Christian Robert Adzic https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338558 Mon, 30 Jul 2018 21:09:40 +0000 https://jestineyong.com/?p=17407#comment-338558 In reply to HAKAN.

Hi!
Thank you for supporting my article.
To answer short as possible to your question, pls read this link:
https://antiqueradio.org/dimbulb.htm

I hope you will get the point why to use the bulb in series test kit...

My best regards.

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]]> By: Ganthan https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338524 Mon, 30 Jul 2018 03:41:42 +0000 https://jestineyong.com/?p=17407#comment-338524 Really good and informative. Thanks for sharing.

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]]> By: marco tapia https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338494 Sat, 28 Jul 2018 23:59:57 +0000 https://jestineyong.com/?p=17407#comment-338494 Thank you Christian for this technique that you use and the process of elimination which showed the defective part,I love this article very informative and outstanding outcome, well done.

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]]> By: HAKAN https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338484 Sat, 28 Jul 2018 17:40:18 +0000 https://jestineyong.com/?p=17407#comment-338484 Why did you use bulb in series with the power supply line input?is it for the power supply to draw less current?If you connect that powersuply directly to AC line, what would happen?

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]]> By: Beau Michna https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338440 Fri, 27 Jul 2018 04:59:12 +0000 https://jestineyong.com/?p=17407#comment-338440 Very informative, thank you.

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]]> By: Parasuraman https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338433 Fri, 27 Jul 2018 00:20:31 +0000 https://jestineyong.com/?p=17407#comment-338433 That was a wonderful tip to do a cold test on this type of IC. Many thanks for your support!

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]]> By: Tito https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338403 Thu, 26 Jul 2018 13:55:46 +0000 https://jestineyong.com/?p=17407#comment-338403 Good job Chris and very smart

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]]> By: Robert Calk Jr. https://jestineyong.com/easy-ways-to-troubleshoot-and-repair-power-supplies/comment-page-1/#comment-338386 Thu, 26 Jul 2018 09:00:17 +0000 https://jestineyong.com/?p=17407#comment-338386 Thanks Chris. Good job.

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