Hi, my name is Greg.
I know bugger all about audio or electronics. I have a surround sound system.
Amp is Yamaha RX-V650 and all the speakers are Fleetwood.
This system has lain dormant in hibernation in a sea-container for the last 10-12 years. The two large 'front' speakers I had never used at all. The smaller surrounds, backs, center and the sub-woofer I had caned with hard rock for about a year prior to the system being packed up and put in the sea container.
Yesterday I finally finished installing it in my house in the mountains. I live a long way from civilisation and a long way from the nearest pub. So I have to try and fix everything myself.
I have all seven speakers connected,
2 x front
2 x surround
2 x rear
1 sub woofer.
As I ramped the Amp up (+10db) one of the rear speakers went into total distortion and died ... this was followed by all the others, except the two fronts and the sub.
There was a tiny-tweety sound, recognisable as rock music, but just, coming from the dead speakers. That is, surrounds, rears and center. (5)
Inside each speaker is a 'mid' speaker and a tiny little 'tweeter' speaker and a confusing little circuit board.
I traced the little board out and drew a schematic of the circuit. I tested the speakers with just a multi-meter and they are not open-circuit.
There are two circuits on the little board, one seems to feed the 'tweeter' and it appears to be working on every speaker.
The other feeds the 'mid' speaker. It only appears to consist of a resistor and a capacitor? My guess is I have blown the capacitor. I googled the capacitor, 85uF 100volt, NP85C ... it appears to be called a crossover-capacitor.
I rung my nearest jaycar, (50kms) and he only has a 100uF 100volt NP85C
Would this capacitor work?
If anyone can help I appreciate.
Greg
Ooops ... forgot to say, the amp is switched to 7-channel-stereo. Which means (I think) it outputs to all speakers.