bgely

Thanks for the reply. I am an Electrical Engineer so repairing electronics is typically not a problem. I found a Vetta Service Manual online and while it is similar to the Vetta II, there are some differences. I suspect the problem is on the Power Amp PCB (also speaker output on this card). The Power Amp card in my Vetta II has the same part number as the Vetta schematic for that same PCB, however comparing the schematic to the board, there are some differences. I am trying to locate an O-scope so that I compare signals between the 2 amps. Maybe I can isolate the components that are causing the problem.

I am familiar with the Pilot Manual. When you say each channel are you referring to the 2 amps and the ability to use one or both? I found that both speakers are actually working but the left is at a much lower volume than the right speaker. If I select the same channel for Amp 1 (left speaker) and Amp 2 (right speaker) and then adjust the amp volumes independently, to get the same volume levels Amp1 would be set on max volume and Amp 2 set on about 30% volume. For example: Amp 1 Identical Twins volume at 100% (left speaker) and Amp 2 identical Twins volume at 40% (right speaker). If I use 100% on both Amp 1 and Amp 2, Amp 2 is so much lower that it actually appears Amp 1 is not working. Appears I may have Amp problems on 1. Any thoughts or further test ideas?

I have a Line 6 Vetta II Combo. I found that my left internal speaker is not working. I can swap the wiring between the right / left speaker and the problem moves so it is not the speaker. I don't know of any amp setting that turns on or off just one speaker at a time. Has anyone ever had this occur or does anyone have any suggestions.