The Steel Guitar Forum

The reverb on my 400 does not work correctly. Sometimes if I hit the amp, it will start working again. Any guesses as to what the problem may be? Is it something I could fix myself?

Any help would be appreciated.

Mason Eubank

Check the input/output connector for the reverb cables. That molex connector is the main cause of reverb problems in the Nashville 400. Sometimes just unplugging it and plugging it back in will work. Other times it will need to be sprayed with contact clear (both the male pins and the female in the plug) and even sometimes one of the female pins may need - carefully - tightened (made a little smaller).

I've had so many problems with the connector on mine that I've done away with the molex connector and now have RCA phono jacks/plugs.

There could be other problems but the molex connector is the most logical place to start.

I had the same problem with one of my Nashville 400s. I removed the reverb pan and found one of the tiny wires broken loose from the transformer inside the pan. I carefully resoldered the wire using a low wattage soldering iron. It's been working fine for about a year now.

Gotta go along with Jack on this one. Those dang "molex" connectors are the pitts.

I would be willing to bet that is your problem.

Carl

Hello Mason,
If the above suggestions do not solve the problem, give me a toll free call at 1-877-732-8391 and we'll look at other possibilities. I can be reached at 1-877-732-8391.

Thanks for using Peavey products.
Mike Brown
Peavey Electronics Corporation

Mason,

FWIW, I travel a lot over rough Michigan two-lanes and back roads with my Peavey amps in my vehicle. I can't begin to tell you how many times I've had to resolder one of the tiny connector leads inside the reverb pans. If you travel much with your amp, you can expect this problem to occur from time to time.

Check the molex connector first. If it's OK you can bet the trouble is in the reverb pan. When resoldering those tiny wires, use as little solder as possible and make sure you don't get a cold joint. On some occasion, you may have to perform microsurgery on one of the tiny transformers to reconnect a broken lead. The best product to re-seal the transformer is speaker cone cement (if you have a reconing service in your area you can get a little cement from them).

If it turns out that your reverb springs are trashed, you can get an identical new Accutronics reverb pan for between $30 and $45 anyway. When ordering a replacement pan, it's important to have all the numbers off the old one so that they send the correct unit. Hope this helps.

Tim R.

Our Parts Department is always willing to assist in sending you a new Peavey amplifier part such as a reverb pan. If you will have the serial number of the amp and the exact model name when you phone them, this will help. I'll be glad to assist as well. I can be reached toll free at 1-877-732-8391.

Since the reverb pan is mechanical device, the springs will eventually get weak over the years of use and abuse when moving the amp around. But it takes quite awhile as I have owned a Nashville 400 for 15 years and have replaced the pan once.

Thanks for using Peavey products.

Thanks to all who replied. I cleaned the molex connector, and that seems to have worked. Thanks!

Mason Eubank