Comments on: Should You Test Resistors OnBoard Or OffBoard?

By: Humberto

Humberto — Fri, 14 Jan 2022 18:51:45 +0000

A didactical article. I´m used to test them in-circuit, if any doubt I only de-solder one leg and that´s my way of testing resistors.

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By: Robert Calk Jr.

Robert Calk Jr. — Sun, 28 Nov 2021 03:16:41 +0000

In reply to Jestine Yong.

Yes sir.

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By: Jestine Yong

Jestine Yong — Sat, 27 Nov 2021 23:00:17 +0000

In reply to Robert Calk Jr..

Hi Robert,
Thanks for sharing your experience. This is why sometimes when a circuit board have problem especially intermittent faults, soldering all the points would be able to solve it. Looking at the solder joints seems to be good and even using continuity mode may not the meter's beep and one thought there was a connection in which is actually a dry contact.

Jestine

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By: Robert Calk Jr.

Robert Calk Jr. — Sat, 27 Nov 2021 20:48:11 +0000

Nice article, Mr. Yong. Since I bought a Hakko De-soldering gun, I don't waste time with components. I pull them and test them off-board and then solder them back.
Another reason that I do that is because of the solder joint in my DC bench power supply repair article where a solder joint looked nice and shiny and seemed to be a good solder joint. But it was fooling me because there was no solder underneath the thin layer of solder that appeared to be a good solder joint. As soon as I touched it with my soldering iron, the solder disappeared and there was nothing underneath on the component's pin.
So, I learned that just because a solder joint looks good to the eye does not mean that it is good solder joint electrically.

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By: JP Singh

JP Singh — Mon, 22 Nov 2021 04:22:41 +0000

In reply to Paris Azis.

Excellent description

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By: Jestine Yong

Jestine Yong — Sun, 21 Nov 2021 23:30:49 +0000

In reply to Imoudu Onwumah.

Hi Imoudou,

You are welcome

Jestine

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By: Imoudu Onwumah

Imoudu Onwumah — Sun, 21 Nov 2021 15:34:25 +0000

Great!!.I have leant a new knowledge from this article.Thanks.

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By: Jestine Yong

Jestine Yong — Sun, 21 Nov 2021 13:42:51 +0000

In reply to Yogesh Panchal.

Hi Yogesh,

Agreed.

Jestine

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By: Yogesh Panchal

Yogesh Panchal — Sun, 21 Nov 2021 13:37:35 +0000

Sir,
Understanding working of the circuit is most important and rest process should be as mark said in above comment.

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By: Jestine Yong

Jestine Yong — Sun, 21 Nov 2021 06:02:29 +0000

In reply to Mark.

Hi Mark,

Thanks for sharing your way to test resistors.

Jestine

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