diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Car Audio (http://www.diyaudio.com/forums/car-audio/)
-   -   PowerBass XA3000D (http://www.diyaudio.com/forums/car-audio/230415-powerbass-xa3000d.html)

amp it up 20th February 2013 06:19 AM

PowerBass XA3000D
 
Well I have a PowerBass XA3000D that someone tried to fix but was not successful. the power supply was toast I fixed that and now it powers up and idles right but there is no out put. there is 108 volts on the legs of the out puts.

Perry Babin 20th February 2013 08:22 AM

Do you have rail-rail oscillation on the output transistors?

Is the master/slave switch set to master?

amp it up 20th February 2013 08:43 AM

HI perry what do you mean Do you have rail-rail oscillation on the output transistors? how do I check that?

amp it up 20th February 2013 08:51 AM

and yes its set to master.

Perry Babin 20th February 2013 09:35 AM

Set your scope to 50v/div and 10us. Touch the scope probe to the legs that didn't have 100+v. You should see a square wave that swings from the positive rail to the negative rail.

amp it up 20th February 2013 06:12 PM

Sorry Perry I don't have a scope yet I should have one in the next few days and then I still need to learn how to use it. Can I do anything with my DMM?

Perry Babin 20th February 2013 06:25 PM

If you're going to have a scope in a few days, it would be better to wait.

amp it up 20th February 2013 06:35 PM

OK thanks!!

Perry Babin 20th February 2013 07:02 PM

Find a downloadable copy of the owner's manual for your scope and read it from cover to cover.

amp it up 20th February 2013 07:17 PM

ok will do!


All times are GMT. The time now is 03:20 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2