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Electro Voice SBA-760

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IFixStuff View Drop Down
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    Posted: 07 November 2017 at 5:08pm
Got a couple of these.  Drivers are excellent as are the cabinets.  Both have bad amplifier plates.  Have managed to sort out some issues with one of them, however, what is the deal with trying to get schematics for these things.  They are not terribly complex, but it would certainly make life a little nicer if I had schematics.  These are I believe obsolete, but still not available.
Any helpful suggestions.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote IFixStuff Quote  Post ReplyReply Direct Link To This Post Posted: 07 November 2017 at 5:37pm
Oh, apparently they were also sold as Dynacord SUB 800A.  But still no service manuals or schematics.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote IFixStuff Quote  Post ReplyReply Direct Link To This Post Posted: 11 December 2017 at 6:31pm
So, even without schematics, I now have one working Subwoofer plate, and the other one powers up, but no sound, and some iffy status light indications.  Now, it could get interesting.  Since I have one working unit, I can probe around with my trusty DVM and scope and look for differences.  Might yet end up with two functioning units.
If I had schematics, they would both be fixed, but EV and Dynacord are very secretive type folks.


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