Phoenix Gold Phorum

trying to help a friend look into his amp/broad..

any common causes for the fuses to trip on a xs6600 upon hooking up power to the amp??

any parts in particular to look at?
cheers

You've got an open short somewhere.

if the speakers are disconnected and it is still doing it then you have a bad amp.

Output MOSFET shorted. Check Q113,Q114,Q213,Q214,Q313,Q314,Q413,Q414,Q513,Q514,Q613 and Q614.

thats what i was guessing too.^

...i break a lot of xs amps lol

valeks1 wrote:Output MOSFET shorted. Check Q113,Q114,Q213,Q214,Q313,Q314,Q413,Q414,Q513,Q514,Q613 and Q614.

how do i go about doing this?


(i have an electrical shop at my work, so have most tools)

vwtoby wrote:

valeks1 wrote:Output MOSFET shorted. Check Q113,Q114,Q213,Q214,Q313,Q314,Q413,Q414,Q513,Q514,Q613 and Q614.

how do i go about doing this?


(i have an electrical shop at my work, so have most tools)

Check out my thread on my amp blowing fuses:

http://phoenixphorum.com/tantrum-600-4- ... wing+fuses

Different amp, but very similar inside. Towards the end I detail how to test the fets. Hope that helps!

thanks!

ok, so finally getting around to looking into this. Pulled the amp apart but not sure which caps you are referring to up there. Can anyone give me some pointers, dont see any leakages though...

the two fuses closest to the terminal block are the ones that are blown

Pic 1:

Pic 2:

Pic 3:

If you connect just the power, the (+) wire, and the (-) wire, but no RCAs, remote lead, or speakers, do the fuses blow?

If they do, then there may be a shorted power supply MOSFET. You would need to replace all of them, and you should replace the resistors which are connected to their gates as well. If the fuses don't blow, and only do blow when you add the remote wire and energize it, then you probably have a shorted output transistor (or more).

Also, for the post earlier in this thread, there really is no such thing as an "open short". The two words are opposite of each other. If you have an open, you might not have fuses blowing, if you have a short, you typically do have fuses blowing. To say "open short" is like saying it is "hot cold" outside today.

can i test mosfet/transistors out with a voltmeter? what ohm'age am I looking for across them

I would recommend doing a search on youtube. there are videos on how to test things on there. That might help.

Thanks
Justind

This is what mine is doing and what I was thinking that what I needed to do. Bringing this back from 2011. wow! I've been down for a long time.