How can I troubleshoot a tweeter issue in Polk 10as?

gary_blevins

Tweeter in the left speaker is not working. Moved it the right and it works. Right tweeter does not work in the left speaker; so I'm assuming a wiring or crossover issue. I pulled the crossover and all solder connections seem tight. I have replaced frozen drivers in various monitors before but am limited beyond the simple solder connections to accomplish that. Any suggestions for what to look for?

Gary

pitdogg2

do they have fuses? if so clean the fuse contacts and look at the fuse to see if it is good. You may need a multi meter as that wire is small and hard to tell sometimes.

michaeljhsda2

Spray the fuse holder with contact cleaner and rotate the fuse to spread the cleaner. Still no sound...remove fuse and use a piece of wire as a jumper.

pitdogg2

gary_blevins wrote: »

Thanks for the quick response. There is a fuse on the back of the crossover but not on the tweeter itself. Does this still potentially solve the problem?

michaeljhsda2 wrote: »

Spray the fuse holder with contact cleaner and rotate the fuse to spread the cleaner. Still no sound...remove fuse and use a piece of wire as a jumper.

yes that fuse is for the tweeter and yes ^^^

gary_blevins

Thanks for the quick response. There is a fuse on the back of the crossover but not on the tweeter itself. Does this still potentially solve the problem?

gary_blevins

Thanks for the help. It was the tweeter fuse. Placed a jumper wire in it and they sound great!

dkfreebird

Be sure and get the right fuse put back in it to protect the tweeter. That jumper takes away the protection. I believe it is a 1amp fast blow.

Polkaguy58

If you don't have contact cleaner the grey side of an office eraser is excellent for removing tarnish from metal.
I clean vintage guitar hardware with one quite a bit.
ScotchBrite (green pads) is great for tin contacts with oxidation (but not on finished chrome)