| Author |
Topic: problem with Nashville Vegas and 400 |
Garry Pugh
From:
Nashville Indiana
|
Posted 24 Apr 2010 4:12 pm |
|
I have a question I am hoping somebody can help me with. I have a Vegas and a NV 400. I bought them both in the early 1980's and they are both stock, no mods.
My problem is both "cut out" in the middle of a song. if I tap on the side of the cabinet(s) they will start working again.
A while back I sent the 400 head back to Peavey for repair. When it came back it seemed to work but after a period of time started doing the same thing.
I have both of these amps stored away as I have other amps I can use, however, it seems to me I should have these repaired and sell them. I have (1) 112 NV and it would be nice to get another and play through 2 of them.
Anyway, does anybody have any idea as to what could be wrong with the Vegas and NV 400?
Thanks for your help. |
|
|
 |
Ken Fox
From:
Nashville GA USA
|
Posted 24 Apr 2010 4:47 pm
|
|
Get 4 of the short effects pedal patch cords and patch the preamp out to the power amp in. On the front of the amp patch the pre EQ out to the Pre EQ in.
Bet that will take care of it! |
|
|
|
Pat Comeau
From:
New Brunswick, Canada
|
|
|
|
Paul Sutherland
From:
Placerville, California
|
Posted 25 Apr 2010 12:21 am
|
|
Ken: I think your patch cords system works!! My NV400 has been sitting in the garage because I couldn't afford to send it off to be fixed, and it cuts out after playing about 5 minutes.
(It works just fine when I bypass the preamp of the NV400 and send a preamp signal from my Session 400 to the power amp input of the NV400; a nifty trick you previously shared. But I don't have a lot of need for 400 watts and two 15s.)
I just brought the amp up from the garage and plugged in the patch cords as you described, and the amp seems to work just fine. I would have never thought to try this on my own. I have rehearsal on Thursday so that will be the real test. Thanks! |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 25 Apr 2010 2:02 am
|
|
| That is a quick cure for many amp brands. Effects loops are a pain! I see more problems there than any other on amps coming into the shop. |
|
|
|
Garry Pugh
From:
Nashville Indiana
|
Posted 25 Apr 2010 9:57 pm
|
|
| Thanks Ken, your suggestion seems to have done the trick! |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 26 Apr 2010 4:16 am
|
|
Sounds like I need to sell the "Nashville 400 emergency roadside kit" on my website!!!
Every home needs one. I could do them in standard black or multi colors!!!
Glad that helped out. |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 26 Apr 2010 4:41 am
|
|
The same idea can help a Session 500. The Session 500 was plagued with a lot of Molex connections inside the chassis that are prone to poor connections. This requires chassis removal, removing the plugs and cleaning the male pins and re-tensioning the female pins.
Due to the sheer weight of these amps and a 2 week back-ache from the last one I worked on I have sworn off working on any more Session 500 amps of the two piece (large cabinet) variety! |
|
|
|
LARRY COLE
From:
LANCASTER, OHIO, USA
|
Posted 26 Apr 2010 7:38 am
|
|
I replaced the power amp in jack(which is a switching jack) with a Switchcraft jack a few years ago and haven't had anymore problems. It seems Peavey uses a cheaper jack that will get dirty or tarnish and not get good connection.
I have never seen a Switchcraft plug or jack tarnish. Any other brands no mater how good they are supposed to be have never performed like the Switchcraft ones FOR ME. |
|
|
|
Ken Fox
From:
Nashville GA USA
|
Posted 26 Apr 2010 11:03 am
|
|
| Every power amp jack I have serviced on a Peavey was a Switchcraft. I get brand new ones out of stock that show resistance with the contacts closed all the time! |
|
|
|
