Comments on: One Zener Diode Found Cracked And Another Shorted In CCTV SMPS https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Tue, 28 Jul 2020 22:57:06 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: ralph https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-370157 Tue, 28 Jul 2020 22:57:06 +0000 https://jestineyong.com/?p=20982#comment-370157 In reply to Parasuraman S.

TL431 feedback may be failing so there was overvoltage and output protection zeners fail short to protect from overvoltage

Likes(0)Dislikes(0)
]]> By: Parasuraman S https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365628 Sun, 26 Jan 2020 01:00:10 +0000 https://jestineyong.com/?p=20982#comment-365628 In reply to Robert Calk Jr..

Many thanks, Calk! All because of your continued support!

Likes(1)Dislikes(0)
]]> By: Parasuraman S https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365627 Sun, 26 Jan 2020 00:59:20 +0000 https://jestineyong.com/?p=20982#comment-365627 In reply to Justice (City of Durban --South Africa).

Yes very true! Even when we die, we learn how to leave this body!

Likes(0)Dislikes(0)
]]> By: Robert Calk Jr. https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365600 Fri, 24 Jan 2020 07:10:11 +0000 https://jestineyong.com/?p=20982#comment-365600 Good job, Parasuraman!

Likes(1)Dislikes(0)
]]> By: Justice (City of Durban --South Africa) https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365578 Thu, 23 Jan 2020 11:59:12 +0000 https://jestineyong.com/?p=20982#comment-365578 Yeah Parasuraman, very unique approach--I have never thought gluing together of broken part, yes we learn till we stop breathing.Thank you so much for such an experience!!

Likes(1)Dislikes(0)
]]> By: Parasuraman S https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365575 Thu, 23 Jan 2020 09:31:30 +0000 https://jestineyong.com/?p=20982#comment-365575 In reply to Mark.

Thanks, Mark!

Likes(0)Dislikes(0)
]]> By: Parasuraman S https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365574 Thu, 23 Jan 2020 09:30:51 +0000 https://jestineyong.com/?p=20982#comment-365574 Thanks, Albert! No, it is not possible to measure it, as the conductance cannot be ensured by this type of bonding.

Likes(1)Dislikes(0)
]]> By: Waleed Rishmawi https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365571 Thu, 23 Jan 2020 09:10:49 +0000 https://jestineyong.com/?p=20982#comment-365571 I love the gluing the zenner part for testing..I never done that before to know the value of the zenner. thanks for that new information. again,a job well done and keep up the good work. have a blessed day

Likes(2)Dislikes(0)
]]> By: Mark https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365558 Wed, 22 Jan 2020 21:41:19 +0000 https://jestineyong.com/?p=20982#comment-365558 Well done Parasuraman,
It was a good idea to glue the diode together to make it easier to identify!

Likes(2)Dislikes(0)
]]> By: Albert van Bemmelen https://jestineyong.com/one-zener-diode-found-cracked-and-another-shorted-in-cctv-smps/comment-page-1/#comment-365552 Wed, 22 Jan 2020 15:59:41 +0000 https://jestineyong.com/?p=20982#comment-365552 Using Fevibond and sticking the two broken diode pieces exactly together and reading the value of the 6V2 zener is brilliant especially if in this way it also was still measurable as a good zener. Similar to how most point contact diodes are manufactured and work.

Likes(6)Dislikes(0)
]]>