Question about Mossberg Optics
Circuit board burned after a new power transformer was installed. need to repair the board.
Posted by Anonymous on
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Posted on Jan 02, 2017
You should be able to get a diagram from the company itself and the circuit board can either be purchased from the manufacturer itself or they can tell you who to call.
Here is the manufacturer's number
BEHRINGER USA BEHRINGER USA Inc.
18912 North Creek Parkway, Suite 200
Bothell, WA 98011
Tel.: +1 425 672 0816
you can also try their online support at
but I would just call them, it would be much easier
Let me know if you need any further help or if they couldn't help you and I will let you know who else might have what you need.
Posted on May 23, 2008
Try- http://innovatcorp.com/ they're one of the few companies that actually responded to my emails about my board.
Posted on Aug 20, 2009
If you connected both speaker outputs of the two heads together you likely destroyed the output transistors of one or both heads. assuming they are solid state. It is unlikely a tube amp would have much damage.
The sequence would be that when you started driving the second unit, the feedback paths within it would fight the attempt to drive backwards and the output transistors would first overheat and then short, This would put a shoirt on the power supply and blow the fuse. The damage would be permanent and would LIKELY NOT include the transformer.
Expect the power transistors, driver transistors, associated resistors to go up in smoke. The unit will have to go to a shop to repair. Probably $30 of parts wholesale, but labor is going to cost you for sure. Expensive mistake.
Refurbing this has to be done carefully to insure all bad parts are replaced as a single bad one left in can blow the whole lot again.
The new Speakon connections avoid some of these mistakes... but not all.
Operate ALL you equipment from a single point source of power to avoid ground loop and faults from causing "common mode" destruction of circuitry.
Posted on Mar 18, 2010
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