Rowe R86 volume jumper

Danridge · by **Danridge** » Fri Dec 30, 2011 3:54 am

I have a question about the volume jumper on the top of the amplifier enclosure.
It is marked in black. Is there supposed to be a jumper installed there?
I noticed that when I jump it with a piece of wire that the sound starts working on my top right speaker again.
But without it it doesn't work.

Thanks,
Dan

by **Ron Rich** » Fri Dec 30, 2011 5:39 am

Dan,
It should say how to hook the jumper up for dual, or single channel operation. If the silk screen is gone, see the service manual-- (hint: if using a single pot volume control, both channels must be connected -- in other words, "jumpered"). Ron Rich

Danridge · by **Danridge** » Fri Dec 30, 2011 12:58 pm

Ron,
Thanks for the reply. It is a single pot volum control. When I jumpered the connections I got sound out of both speakers but the sound from the right speaker was a bit distorted. I installed a new preamp board from AB Jukebox. Could it be a bad driver board?

Thanks,
Dan

by **Ron Rich** » Fri Dec 30, 2011 6:43 pm

Fan,
Sure--it could be-- maybe--swap the boards around--AFTER you check the bias setting !
Ron Rich