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Crossover replacement part Deux

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Jason L Holland:
Wonder if you folks can help. I got a donated Portable PA system (Behringer Eurolive EPA900) that I want to re-donate to my kids elementary school. Problem is one of the speakers has a tweeter out. Looks like it's in the crossover. Here's what I've done.

Tried known good tweeter in the speaker - no joy - Test voltage coming to HF leads - zero voltage) - Reflowed all the solder joints on the crossover and inspected for obvious damage - no joy -

The LF speaker works fine so it seems like it's something in the HF part of the crossover.

Behringer doesn't sell a replacement crossover and only recommend replacing the entire speaker.

Thoughts on what I should do next? I was thinking maybe getting a 2 way crossover from amazon or ebay and just trying it to see. I guess I could test each componet and replace but not sure if it's the pcb board so...

How do I choose a comparable crossover to what I have? The speaker is a 10" LF woofer and 1.35'' aluminum-diaphragm compression drivers. The amp is 450watts per side.

so Would I be good to try something like:

https://www.amazon.com/Durability-Crossover-Frequency-12-18inch-Professional/dp/B08D3SVVXM/ref=sr_1_4?crid=20S1O6P8AF36K&keywords=2+way+crossover+500+watt&qid=1647116375&sprefix=2+way+crossover+500+watt%2Caps%2C42&sr=8-4

It just needs to be 500 watts or so? Should I worry where the crossover point is? It's just gonna be used for music and speaking mostly.

Thanks for any help!

Paul G. OBrien:
Post up some pics of the crossover, it's probably an open capacitor or resistor.

Jason L Holland:

--- Quote from: Paul G. OBrien on March 14, 2022, 07:59:15 PM ---Post up some pics of the crossover, it's probably an open capacitor or resistor.

--- End quote ---

Thanks for the reply. Here are some pics...

https://imgur.com/a/GsheQFV

Brian Jojade:
You've got 2 speakers, one working and one not.

First step, swap crossovers to confirm that's the issue.

Second step, start measuring values between the crossovers to see what components don't match.  There aren't a lot, so you could even go as far as swapping components on the crossovers to see where the problem is.

Jason L Holland:

--- Quote from: Brian Jojade on March 15, 2022, 09:39:02 PM ---You've got 2 speakers, one working and one not.

First step, swap crossovers to confirm that's the issue.

Second step, start measuring values between the crossovers to see what components don't match.  There aren't a lot, so you could even go as far as swapping components on the crossovers to see where the problem is.

--- End quote ---

Great advice. Anyone know of a guide to testing components? I have a good multimeter but not great knowledge. :)

I assume if I find the bad component then I could get it at digikey or somewhere like that?

Thanks again for your replies

J

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