Community: No output from the speaker outs.

Up to Discussions in Vetta

3089 Views 8 Replies Latest reply: May 7, 2010 1:41 AM by lightningeckel

L6_user

12 posts since
Mar 26, 2009

Currently Being Moderated

Jul 23, 2009 2:18 PM

No output from the speaker outs.

Hi,

My Vetta I running 2.5 does not have any output except strange hum any 10 seconds or so. there is no change no matter that output setting is chosen /normal, speakers or direct/. The direct outs are fine and it looks like everything else is operating good. I'm wondering if there is any way to make sure this is a hardware problem, and is it the power amp ot power supply board. I'm experienced with electronics, but before taking everything appart need to make sure if there is a known issue.

Thanks in advance.

Like (0)

Crusty_Old_Rocker
3,096 posts since
Jan 24, 2007

Currently Being Moderated

Jul 23, 2009 3:56 PM (in response to L6_user)
Re: No output from the speaker outs.

No, this isn't a known issue, it definitely sounds like a hardware problem with the power amp section.

Cheers,

Crusty

Report Abuse

Like (0)
Line6Andy
4,345 posts since
Jun 5, 2006

Currently Being Moderated

Jul 23, 2009 4:15 PM (in response to L6_user)
Re: No output from the speaker outs.

Hello,
This information is helpful. You should also check to ensure the speakers are "on" by selecting "outputs", then page 2/4 (first knob from the left). You can also try reflashing the unit to ensure there is not a software issue. See the following links for more information:

Vetta Software Update/Reflash Procedure
http://line6.com/community/docs/DOC-3762

Vettta Trouble Shooting F.A.Q.s
http://line6.com/community/docs/DOC-3842

If you are still having problems, take the unit for service:

Product Repair
http://line6.com/community/docs/DOC-4285

Please be sure to award Helpful and/or Correct points to community members who respond with helpful or correct answers!

Report Abuse

Like (0)
L6_user
12 posts since
Mar 26, 2009

Currently Being Moderated

Jul 25, 2009 4:04 PM (in response to L6_user)
Re: No output from the speaker outs.

Does anybody know what occurs with the power amp section if a load with incorrect Ohms is applied. I can't beleive that never happend to someone.
Is there a protection circuit or something immediately burns if the speakers are not matched with the load selector switch?
Thanks

Report Abuse

Like (0)
- candreasffm
  78 posts since
  May 20, 2006
  
  Currently Being Moderated
  
  Jul 26, 2009 2:17 AM (in response to L6_user)
  Re: No output from the speaker outs.
  
  Hi, the power section of the Vetta is not a tubeamp, so it's absolutely no problem to use the amp without any speaker connected. But you shouldn't use the amp with less impedance connected (especially short circuit).
  
  Report Abuse
  
  Like (0)
  - L6_user
    12 posts since
    Mar 26, 2009
    
    Currently Being Moderated
    
    Jul 26, 2009 1:56 PM (in response to candreasffm)
    Re: No output from the speaker outs.
    
    Yes, but it will be like 50 pound FX processor.
    I really prefer to fix the power amp section.
    Thanks
    
    Report Abuse
    
    Like (0)
Line6Hugo
6,580 posts since
Apr 8, 2007

Currently Being Moderated

Jul 27, 2009 10:28 AM (in response to L6_user)
Re: No output from the speaker outs.

As Andy already mentioned, you will need to take the Vetta to an authorized service center to diagnose and repair the problem:

http://line6.com/support/serviceCenters/

Regards,

Line6Hugo

Report Abuse

Like (0)
L6_user
12 posts since
Mar 26, 2009

Currently Being Moderated

Jul 29, 2009 7:15 AM (in response to L6_user)
Re: No output from the speaker outs.

I have my amp fixed.
The problem was shorted diode in the power supply.
Thanks everybody for the help.

Report Abuse

Like (0)
- lightningeckel
  2 posts since
  May 5, 2010
  
  Currently Being Moderated
  
  May 7, 2010 1:41 AM (in response to L6_user)
  Re: No output from the speaker outs.
  
  How did that repair go? My Marshall MG100HDFX will burn the Power Amp Chip if you turn it on without the speakers
  unless you plug the headphones in to just use the pre amp section. Then the power amp side is swithced off. If you have no sound out of the speakers then I would look there, and you should still have good sound in the headphones, but if the Headphones sound bad or no sound then I would back up to the pre-amp section and look for the Op-Amp and replace it , be sure to put the new on in the same direction and with a heat sink as to not mess anything up. Good Luck!
  
  Report Abuse
  
  Like (0)

Go to original post

Legend

Correct Answers - 5 points
Helpful Answers - 3 points

About
- Line 6 Story
- News
- Press
- Jobs
- Support
- Contact Us
Follow

Stay in the mix and in the know.
Subscribe

Latest offers, special deals and insider updates.

Jul 23, 2009 2:18 PM

No output from the speaker outs.

Actions

More Like This

Bookmarked By (0)

Legend

About

Follow

Subscribe