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Posted 7:21 PM (#4156 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics Posted 5:54 PM (#4155 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics Posted 10:58 PM (#4154 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics January 2003 Posts: 1498 Location: San Bernardino, California Posted 10:47 PM (#4153 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics If you have someone that works on guitars, these are pretty straight forward and they should be able to test up to figuring out which component is failing. If you have a scope and a signal gen that makes life a lot easier. If you are getting hiss, and it changes with volume and you are getting scratches when you move the sliders. Next, you hook them back up, insure they are connected to properly. You can use a meter, but actually hearing them, even just using alligator clips is enough to know they work. Disconnect them from the switch and get them to an amp. Check to insure each of the pickups works. Posted 6:52 PM (#4152 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics One strage thing is that when I strum the E string, the hiss gets louder and decays with the string decay. I figured they were grounds and soldered them to the ground trace on the PCB with no avail. I found that a pair of black wires, one from the neck pickup and one from the bridge pickup are soldered together but are not connected to the PCB. There are noises when I move the silder pots as well. Ok, when I peg the volume control I can hear an increase in hiss. Posted 5:05 PM (#4151 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics If there isn't power on the board, then the input jack may be the culprit. If there is, the next place to look is the actual pickup selector.
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If there IS power at the board there should be some audible hiss or some scratching when you move the pot or sliders. Most of the failures I have seen with Ovation electronics (for the solid bodies ) have been mechanical rather than actually a component failure. The first thing I would check is that with a jack plugged in that there is indeed 9v at the circuit board where the power leads hit the board.
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As example, no hiss, no scratching when moving the pots, nothing (as you say totally dead ) is most often a broken battery lead, or the switch on the input jack not turning the circuit on. Could you define "totally dead" as that is an indicator of what may be wrong. Posted 7:22 AM (#4150 - in reply to #4147) Subject: Re: Ovation Magnum 2 ElectronicsÄecember 2001 Posts: 7132 Location: The Great Pacific Northwest There was a NOS set of electronics on the bay back a week or so $75 June 2007 Posts: 3084 Location: Brisbane Australia Posted 6:35 AM (#4149 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics There are a couple of Magnum fans here, but be patient about a wiring diagram - may take a bit of digging to get that. July 2004 Posts: 766 Location: New Hampsha Posted 2:36 PM (#4148 - in reply to #4147) Subject: Re: Ovation Magnum 2 Electronics I am trying to fix one that is totally dead. I was wondering if anybody had a schematic for this system. Greetings All!! I have a bass guitar with Magnum 2 electronics (graphic eq ). Posted 2:08 PM (#4147) Subject: Ovation Magnum 2 Electronics
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isn't that just a series of mistakes disguised as musical composition?ā€¯ - David St.