Extech EX330 Teardown

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Keith2
 
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Joined: Wed Sep 15, 2021 9:52 pm

Extech EX330 Teardown

Post by Keith2 »

I thought I'd ask here, since this is recent for me. Does anyone know the locations for the copper switch contacts inside the Extech EX330?

I emailed Extech Service and asked for the switch contact locations inside because I dropped my EX330 and it knocked some of the little copper contacts out of place. There are some extra tabs where they could go. I'm pretty sure I have them in the right locations but the meter still won't function properly. I couldn't believe it, only a 30 inch drop off of my computer desk in the orange holster. I cleaned off some corrosion on some board traces for the buttons, and a couple pins on the main IC. Still bricked.

They answered me the next day, so response was good. But they suggested I open an RMA for $250 so I'll just use it for parts if I can't fix it. Not sure now which new meter to get. Thanks.

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Keith2
 
Posts: 2
Joined: Wed Sep 15, 2021 9:52 pm

Re: Extech EX330 Teardown

Post by Keith2 »

Update in case anyone wondered about these contacts.

I located a post with a picture where someone had a different problem. It confirmed my contacts placement, which are in the correct locations.

https://www.eevblog.com/forum/repair/fi ... msg3086221

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