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Discussion Starter · #1 ·
I picked up some speakers cheap. The kid that had them blew them up. I mainly want the cabinets, but may think about replacing the damaged parts. the tweeters are done, for sure.

Right now I am wondering how to test the tweeter section of the passive cross over with a volt meter.
 

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Discussion Starter · #2 ·
Turns out that one peek is worth a thousand test.

The resistor (I have it lifted up in the picture) is badly burned. It's cracked along it's entire length. One wire was burned through. That black stuff is thoroughly cooked hot glue, or whatever they used to stick the parts to the board.

Electrical network Circuit component Resistor Wire Optoelectronics
 

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Discussion Starter · #4 ·
I think I'll try and fix it. The yellow cap next to the resistor is also toast. The rest of it seems OK.

I found out the OEM woofers and tweeters are available. I would need 1 woofer and 2 tweeters. It may make sense to use them with their crossovers rather than replace the speakers with another brand.
 

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Discussion Starter · #6 ·
Thanks for the suggestion. I'll see if I can get it locally. What is the difference between the yellow and black cap other then the location of the leads?
 

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Discussion Starter · #10 ·
So, could I use one of those larger Dayton polypropylene caps instead? I looked around and could not find a 25uf electrolytic.
 

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Discussion Starter · #12 ·
PE wants $7. It was only $5.75 for both of the other ones. I see why they used the electrolytic cap. I think I will keep looking.

I tested the old cap and it was 27.25uf. That's about 10% over the stated 25uf on the label. Maybe it will be OK for awhile.

What would happen if I used a 22uf? They are readily available for less than a dollar.
 
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