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Topic: NV-112 - an accident! |
Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 5:24 am |
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Last night just before the show our guitar-player was messing around on stage when he accidentally (I hope!) knocked my amp over. It was powered up at the time and the jolt did something bad inside! The power-light went out and the amp won't work!
I had a reserve there and all is well, but what is likely to have happened to my amp? There's no fuse that's visible and I'm afraid it's going to have to go for repair.
I'm posting here in case anyone has any idea what might be involved.
Thanks!
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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LaVern Skarzenski
From:
North East,Pennsylvania, USA
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Posted 14 Oct 2011 6:00 am
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Hi Roger,
Maybe something as simple as a dis-lodged power cord? I've had mine pull out before. If it's something other than that you'll need somebody else to chime in.
LaVern |
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Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 6:03 am
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That's the extent of my knowledge, too, LaVern! I've had that happen before and had an anxious moment, but this is a bit more serious.
Thanks anyway.
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 6:06 am
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I had a similar thing happen some years ago. It seems that these amps are extremely rugged and dependable, but perhaps a bit vulnerable when they're actually powered up?
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Frank James Pracher
From:
Michigan, USA
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Posted 14 Oct 2011 6:28 am
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Have you opened it up? Could be as simple as a glass fuse that's mounted inside has fallen out of it's holder.
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"Don't be mad honey, but I bought another one" |
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Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 6:43 am
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Hi, Frank...
No I haven't, because the guitar-player (who was feeling very guilty!) took it home with him last night promising to have a quick look inside.
This really was just an accident so I'm certainly not holding him responsible but he's one of those 'hands on' kind of guys who never goes anywhere without a soldering-iron in his pocket; he also refrets guitars and is an inveterate tinkerer. He's far better qualified than I am to actually take a screwdriver to my amp so I await his verdict (later today) with interest.
I posed the question here because so many of you guys are familiar with these amps. I like the fuse idea - I just wish they'd made it accessible to the likes of me.
I do hope I don't have to pack this amp up and ship it to Meridian, MS!
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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David Collins
From:
Madison, North Carolina, USA
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Posted 14 Oct 2011 8:34 am
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Roger,
FWIW, after a particularly hard jolt in the vehicle one time, I had a couple of the op amp chips become dislodged. Simply grounded myself (amp powered off of course) and re seated the chips with hand pressure. Been working fine ever since.
Good Luck,
David
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David Collins
www.chjoyce.com |
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Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 8:51 am
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Thanks, David.
If it is something along those lines perhaps the guitar-player will see it when he opens it up.
Now my spare 112 is in service at the show, and I'll be taking one of my old Nashville 400s along tonight as a spare. I just pulled it out of the closet - man, those things are heavy after the 112!!!
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Jim Cooley
From:
The 'Ville, Texas, USA
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Posted 14 Oct 2011 9:29 am
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Roger,
There should be a couple of Molex type connectors in the pre-amp. One of them might be dislodged. |
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Jack Stoner
From:
Kansas City, MO
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Posted 14 Oct 2011 10:16 am
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I would suspect the AC power cord or something jarred loose inside. I've had mine tip over, I held my breath, powered it on and all was well.
However, Murphy's Law can also apply and something is fried. |
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Mike Schwartzman
From:
Maryland, USA
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Posted 14 Oct 2011 12:56 pm
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I'll keep a good thought for something simple coming loose.
I always thought that a warm amp is a little more prone to jarring something loose as verses a cold amp, simply because heat expands and cold contracts.
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Emmons Push Pull, BMI, Session 400, Home of the Slimcaster Tele. |
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Roger Rettig
From:
Naples, FL
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Posted 14 Oct 2011 6:37 pm
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Thanks for all the suggestions, guys, but it seems to be fixed!
The guitar-player opened the amp up as soon as he got home last night and found that the spade-connectors on the power-supply weren't all that firmly attached. In addition, the fuse-holder was a bit wobbly.
He can't be absolutely certain which of these caused the failure as there wasn't a glaring fault inside, but a general tightening up solved the problem. I tested it tonight and the show went without a hitch (apart from me breaking a 5th string on my E9th!)
BOTH NV-112s are now sitting side-by-side on stage - just in case!
What a relief that I'm not going to have to ship this amp somewhere for a repair!
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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David Collins
From:
Madison, North Carolina, USA
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Posted 15 Oct 2011 4:56 am
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YeeHaa!
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David Collins
www.chjoyce.com |
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Roger Rettig
From:
Naples, FL
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Posted 15 Oct 2011 6:57 am
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"YeeHaa!!!" is absolutely right - I couldn't have put it any better myself.
David - what did you mean earlier when you said "I simply grounded myself....."?
Is it unsafe to handle an amp even if it's unplugged? (Does it somehow store current?)
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Richard Sinkler
From:
aka: Rusty Strings -- Missoula, Montana
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Posted 15 Oct 2011 11:21 am
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Roger... great news.
I think David was referring to him wearing some type of grounding strap when he was re-seating the chips. It is always a good idea to wear one when working with I.C.'s so as to not "burn them up" with static electricity from your body. Big bummer... Been there and done that.
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Carter D10 8p/8k, Dekley S10 3p/4k C6 setup,Regal RD40 Dobro, Recording King Professional Dobro, NV400, NV112,Ibanez Gio guitar, Epiphone SG Special (open D slide guitar) . Playing for 54 years and still counting. |
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Roger Rettig
From:
Naples, FL
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Posted 15 Oct 2011 11:30 am
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Ah - thanks, Richard. Point noted.
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Jim Cohen
From:
Philadelphia, PA
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Glenn Uhler
From:
Trenton, New Jersey, USA
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Posted 15 Oct 2011 5:10 pm Self Grounding
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Jim,
Please don't try that story on the electrons in an amp cap. They will fail to get the joke even after years in storage!
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1974 Marlen S-12 1968 Tele 1969 Martin D-35H |
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Clete Ritta
From:
San Antonio, Texas
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Posted 15 Oct 2011 5:49 pm
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| Roger Rettig wrote: |
| ...Is it unsafe to handle an amp even if it's unplugged? (Does it somehow store current?) |
| Glenn Uhler wrote: |
| Jim, Please don't try that story on the electrons in an amp cap... |
Known affectionately as the death cap, they have enough stored power to electrocute. If youre poking around with both hands and dont know what youre doing, it might be the last thing you touch! I bring my tube amps to a professional locally, and sent the S.S. Peavey on a cruise to Meridian and it returned to port in tip top shape. Glad yours was an easy fix, and testament to Peavey's durability.
Clete |
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Ken Byng
From:
Southampton, England
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Posted 17 Oct 2011 4:28 am
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A good outcome Roger. I had the same thing happen to my Webb. (Not a guitar player I might add!) The person - who had been on the Scotch all evening - got my size 9 up his backside. Luckily it still worked when I switched it on, but it was on an amp stand so it took a mighty bump.
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Show Pro D10 - amber (8+6), MSA D10 Legend XL Signature - redburst (9+6), Sho-Bud Pro 111 Custom (8+6), Emmons black Push-Pull D10 (8+5), Zum D10 (8x8), Hudson pedal resonator. Telonics TCA-500, Webb 614-E, |
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Norbert Dengler
From:
germany
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Posted 17 Oct 2011 7:51 am
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good luck roger! love my 112 too and so my light blue esquire!
it`s much in use, thanks roger for selling!  |
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Roger Rettig
From:
Naples, FL
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Posted 17 Oct 2011 8:14 am
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Hey, Ken! A good tale. I've yet to try a Webb, but I fear that - if I do - I'm going to want something I can't afford!
Norbert! Nice to hear from you; I'm happy that the pretty Esquire has a good home. I'd have liked to have kept it, but other instruments beckoned at the time.
Thanks, too, for all the cautionary stories about amp components retaining their lethal capacity long after they've been unplugged from the mains. It sounds as though Stephen King could reprise that 'Christine' story of his, but instead cast an old Standel amplifier in the title role!!!
It all convinces me even further that me and amp/guitar/steel repairs are simply not compatible...
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Roger Rettig: Emmons D10, B-bender Teles, Martins, and a Gibson Super 400!
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Ken Byng
From:
Southampton, England
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Posted 17 Oct 2011 8:33 am
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Roger
Just a quick topic drift. Not sure if you have seen the thread on Jon Derek in the Gone Home section. 
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Show Pro D10 - amber (8+6), MSA D10 Legend XL Signature - redburst (9+6), Sho-Bud Pro 111 Custom (8+6), Emmons black Push-Pull D10 (8+5), Zum D10 (8x8), Hudson pedal resonator. Telonics TCA-500, Webb 614-E, |
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