Re: Repairing my cable tester. Bad resister?

I received my resistors today from digikey. Tonight I soldered in the replacement and the unit now works. My first board level repair.

I learned that I need something to hold a magnifying glass and a better soldering iron. Eventually I'll probably get a Weller or a Hakko. I want to be just like Louis!

Thanks for the help.

Roveer

Re: Repairing my cable tester. Bad resister?



I think there are 8 of these resisters around the RJ45 so it's possible the stray voltage came in from the external connection. I will look to see if I can follow the traces and check components on either side. This device isn't critical, I long ago replaced it. I'm using it more as a project to teach myself a little about diagnosis/testing and component level soldering. Fortunatly this particular component is just big enough to not require microscope or heat gun.

How can I determine the wattage of that resister?...

Re: Repairing my cable tester. Bad resister?



All the other similar resistors are measuring .325-330 but that one is open. Thanks for the digikey info. I'm going to try and get a replacement and see what happens.

Roveer...

I've got a cable tester that has a thing called a super injector. You put it at the other end of the cable you are testing and it communicates with the test set.

It's been giving an error saying that pin 3 is not connected. The test set works just fine (I got another injector to verify). I opened it up and found what looks like a cooked resister (or is it a diode?). It's a board mounted device marked 2430



I googled around and couldn't seem to find this component. Can someone give me some advice on where I could find it or what I could substitute. This pcb...

Re: New Members - please post your introductions here

Hi!

My name is Roveer. I've been tinkering with electronics for more than 25 years but never really did much board level stuff. I don't have any formal electronics background, but I read a lot and have taught myself lots over the years.

I'm just smart enough to stay away from the stuff than can hurt me. I prefer low voltage stuff and I'm very leery of caps.

Fortunately for me my current dilemma is a resister so hopefully I'll be successful.

Thanks for listening....