KieselGuitars.com     FAQ    Search    Memberlist    Register   Profile   Log in to check your private messages   Log in  
 
 
 Pro Bass 500 Bridge Mode View next topic
View previous topic
Post new topicReply to topic
Author Message
stoneattic
Newbie


Offline
Joined: 23 Dec 2015
Posts: 1
Location: Honey Brook, PA

PostPosted: Thu Dec 24, 2015 9:50 am   Reply with quoteBack to top

I have a Carvin Pro Bass 500 that works in every way except in bridge mode. Each individual channel works fine, but when I put it in bridge mode I get no sound at all. It does not trip the Protect light and I hear the relay click, but no sound. I have the bridge switch set to "mono/bridge", the biamp switch to "off" and I have a banana plug speaker cable in the bridge binding posts. The speaker cab is 8ohm, which is the minimum for bridged mode. I know the speaker cab is good as it works fine with the individual channels and I know the cable is good as it works with other amps (and I check for continuity and proper polarity).

I got the amp fairly recently and when I first got it I THINK I tested it in bridge mode and it did work, but I might be mis-remembering.

The only attempt at "repair/troubleshooting" was pulling the chassis and measuring the poles in the bridge switch. It is a DPDT and when in "normal(bi-amp)" mode it tests as it should (center pins to end pins on one side, open on the other). When is "mono/bridge" mode the all the pins on each side have continuity. I don't know if that's related to the rest of the circuit (my guess) or an indication of a bad switch.

Any ideas on what I might be missing or what might be wrong?
View user's profileSend private message
Display posts from previous:      
Post new topicReply to topic


 Jump to:   



View next topic
View previous topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


The views and opinions expressed on the Carvin Museum Forums are solely the responsibility of the authors, and do not necessarily reflect those of the
Carvin Museum Webmaster, or of Kiesel Guitars/Carvin Guitars.