Currently Being ModeratedJul 23, 2009 4:15 PM (in response to L6_user)Re: No output from the speaker outs.
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
Vettta Trouble Shooting F.A.Q.s
If you are still having problems, take the unit for service:
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Currently Being ModeratedJul 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?
Currently Being ModeratedJul 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).
Currently Being ModeratedJul 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:
Currently Being ModeratedMay 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!