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Joined:
February 2010
Posts: 39
Location: Sweden | Hi Folks !
Ovation 1982-8 Collector (With Adamas electronic)
This time my preamplifier to my 2 knob Adamas Stereo FET Preamp is totally out, first you could hear some guitar sound in some positions with the pots, but now it´s only noise. Of course I have replaced battery and I have also cleaned the pots and contacts, without any success..... Can/will anybody help me with this problem ? Is there a electrical schematic somewhwere to download ? Or can you give me that ? Maybe this is a typical problem with this amplifiers ? Can you buy only the amplifier part as a spare part ? Can you buy it complete ? Please help me..... Thanks. |
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Joined:
March 2002
Posts: 15654
Location: SoCal | Those were always remarkably durable preamps, but yours is 30 years old. Contact the factory (or your local rep) and see about buying the redesigned reissue two knobber preamp, and replace all the electronics with a more modern design. Better quality and better sound.... |
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Joined:
February 2010
Posts: 39
Location: Sweden | Thanks........maybe I will, if I must, but first I must try to repair this, if it´s possible, initially I think it was a really good sound, so as that technician I am, I want to try, so please, will someone help me with a electrical circuit/scheme to my preamplifier ?
Have a great day ! |
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Joined:
February 2010
Posts: 39
Location: Sweden | Hi "Sleepy Bones Lee"!
Where can I find details about this reissue "2 knobber preamp" ? Do you know or someone els ? |
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Joined:
January 2009
Posts: 1249
Location: Texas | buying the redesigned reissue two knobber preamp, Where can I find details about this reissue "2 knobber preamp" ebstrid,
Having talked to Paul previously about this, I recall that he got his directly from Ovation. I believe that, at one time, a couple sets showed up on eBay...but I think your best bet is to call Ovation and hopefully you can snag one there. They are very easy to work with and will take care of you, if they can.
A lot of things have changed at Ovation..but one thing they do EXTREMELY well is customer service and taking care of us. |
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Joined:
February 2010
Posts: 39
Location: Sweden | Thanks Jay !
Can you give me some contact information to the customer service ?
When I ask, from Sweden, I get forward to "Fender Scandinavia" and they are not so willing to help me so much in this case......maybe it´s too strenuous (-:
God night from Roger |
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Joined:
January 2009
Posts: 1249
Location: Texas | Roger...
Start HERE
USA-made ONLY Ovation guitars, please call the factory at 860-379-7575, press 3 for Service |
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Joined:
August 2002
Posts: 8307
Location: Tennessee | Unfortunately, it also says this ...
The customer service and warranty information listed on this web site applies to the United States customers only.
For customers outside of the United States, please contact your Ovation distributor. |
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Joined:
January 2009
Posts: 1249
Location: Texas | Unfortunately, it also says this ... Doggone...and it's not even fine print.
My bad. |
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Joined:
February 2010
Posts: 39
Location: Sweden | OK I´ll try anyway. Thank you all. |
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Joined:
September 2005
Posts: 3618
Location: GATLINBURG TENNESSEE :) | Well Roger, I just spent about 15 minutes searching for a source for the schematics you are looking for, but it looks like the ONLY answer is the factory. |
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Joined:
December 2009
Posts: 686
Location: Route 66, just east of the Cadillac Ranch | Roger,
I had intermittent problems with my '78 Adamas and in the course of troubleshooting I pulled the electronics out. The preamp is a single board with a bit of point to point wiring. There are few active components so I think any skilled electronics tech could troubleshoot, even without a schematic. I suspect the stereo preamp is similar. Are there any techs around there that you trust? It may be cheaper than shipping to an Ovation repair station.
After pulling everything out, I discovered my problem was a cold solder joint on the battery clip. You might even check that connection on your's. The amps are probably built by one group that are really good at soldering, and the battery clips are probably attached during final assembly by another group that does very limited soldering. Lots of assumptions here, but it wouldn't hurt to check. |
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March 2002
Posts: 15654
Location: SoCal | One thing to think about is that the newer preamps are way better, tone-wise, than the ones designed and built in the 1970's. I can see, if money is an issue, repairing the existing unit, but an opportunity to upgrade the unit to something more modern is a good thing. Do you want to hold on to a 1970's tv or get a new flat screen if the opportunity presents itself?
When the opportunity presented itself to me, I upgraded my 1537, and I'm glad I did. The new redesigned two knobber preamp is light years ahead of the old one (and 30 years newer in it's design. Components are plugged into each other, not soldered (that did lead to a unique problem that once diagnosed had an easy fix).
With it's tone and power, the newer two knobber is just so much better than the old one..... |
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December 2009
Posts: 686
Location: Route 66, just east of the Cadillac Ranch | moody, p.i. wrote:
One thing to think about is that the newer preamps are way better, tone-wise, than the ones designed and built in the 1970's... With it's tone and power, the newer two knobber is just so much better than the old one.....
Good point that I hadn't factored in. I'll add that to the list of things to do. :) |
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September 2005
Posts: 3618
Location: GATLINBURG TENNESSEE :) | Yeah... I bought one of the new ones for my 1537 also, and they ARE way better. If I recall, it wasn't very expensive either. By the time you take averything out and pay for fuel to tote it around, then add the cost of having someone repair it, you will already have paid for a new one. |
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Joined:
February 2012
Posts: 0
| As mentioned before; any skilled electronics tech could troubleshoot the preamp without a schematic. If you previously could (sometimes) hear the sound, the problem maybe still related to pots, even though you cleaned them. This can be easily verified by a tech. Make a photo of the preamp an post it here so that we could see it.
Mark |
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Joined:
February 2010
Posts: 39
Location: Sweden | Thank you all, so far... Will you tell me what the name is and the part number of the new 2 knobs amplifier.....is that a stereo amp too ?
Roger |
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1982 Adamas Stereo FET preamp problem
