test transformer that has modular connectors with small holes - Page 1
Forum section: electronics / repair

author: smk279
author_rank: Contributor
timestamp: July 04, 2024, 07:47:26 pm
content: the holes are smaller than my test leads and on the other side where wire enters the modular connector I can't see metal I have no idea if my leads are making any contact To find if the transformers not working can I just use a clamp meter to see if there's any dc voltage coming out of it

author: Roehrenonkel
author_rank: Frequent Contributor
timestamp: July 04, 2024, 08:05:00 pm
content: Hi,...if it's a tranformer than i'm sure it's not outputting any DC.Even without PICTURE. ;-)

author: smk279
author_rank: Contributor
timestamp: July 04, 2024, 08:47:55 pm
content: Here's a pic So you're saying there's only ac coming from the transformer

author: Roehrenonkel
author_rank: Frequent Contributor
timestamp: July 05, 2024, 08:38:18 am
content: Hi,still can't see the connector in question.You could try stick a resistor or other small wire into it.Checked the main-fuse, voltage-selector and power-switch?Good luck

author: CaptDon
author_rank: Super Contributor
timestamp: July 06, 2024, 02:12:45 pm
content: Those are not connectors on the transformer. You have made two wrong assumptions so far, maybe let a qualified person have a look at the unit.

author: tooki
author_rank: Super Contributor
timestamp: July 06, 2024, 02:36:11 pm
content: Quote from: smk279 on July 04, 2024, 08:47:55 pmIf you don’t know this, you simply aren’t yet knowledgeable enough to be doing anything inside a mains-powered device safely. Please stop before you injure yourself.Also, a “modular connector” is a specific type of connector (used as phone and Ethernet jacks and plugs, primarily). There is nothing of the sort here, and they don’t have anything to do with power, so we don’t really have any idea what your question is even really talking about.Edit: Your posting history makes it evident that you are trying to do repairs FAR beyond your current skill level. But it also shows a history of asking for help, then not doing what is suggested, and of giving no responses at all to questions asked by people who try to help. This, combined with lousy photos and your refusal (even after being told to) to use punctuation, mean that your questions are unnecessarily difficult, and then pointless to answer anyway…

author: smk279
author_rank: Contributor
timestamp: July 06, 2024, 05:10:42 pm
content: There's no voltage at the main secondary black and blue plug

author: tooki
author_rank: Super Contributor
timestamp: July 06, 2024, 06:33:27 pm
content: Quote from: smk279 on July 06, 2024, 05:10:42 pmThis is word salad. Totally meaningless. Please use the correct words for things, in the correct way.

author: BILLPOD
author_rank: Frequent Contributor
timestamp: July 07, 2024, 01:42:19 pm
content: Good Morning Smk279,Get a pair of needle-like probe extensions like these:https://www.amazon.com/Litoexpe-Pieces-Needle-Non-Destructive-Multimeter/dp/B0C3GN5L9Q?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A1GK56K5UMTC3C

author: Stray Electron
author_rank: Super Contributor
timestamp: July 07, 2024, 02:13:43 pm
content: Quote from: BILLPOD on July 07, 2024, 01:42:19 pmThose "holes" are not designed to be test points and there many not be any accessible electrical connection in them regardless of the probe size. The OP is clearly out of his depth here and no one should be encouraging him by recommending different types of probes or probe substitutes.OP, you can, and should be, testing the transformer by taking resistance readings of the windings with the POWER OFF and disconnected. Otherwise there is a good chance that you're going to electrocute yourself!