Carver m500t buzzing

Thu Dec 22, 2011 10:39 am by fschris

So there is a local m500t for sale. Owner says selling for a friend who passed away. Advises it makes a buzzing noise and goes into protect. Seller also adivses may see some resistors blown inside and or kids hooked it up wrong.

Can anyone here help me trouble shoot if I bought this? Cost is 100 bucks.

Any schematics around I can use ?
I have a soldering iron and some electronics exp building crossovers etc... I am not a totally noob but Im no genius either

edit: I found the schematic online
edit: is should put this topic in repair!

Chris

Thu Dec 22, 2011 11:25 am by kingman

BillD is the undisputed "KING" of the 500t, however he is currently unavailable to help you. If you are technically inclined I'm sure someone on here can assist. Start by getting the service manual....http://www.carveraudio.com/index.php/ma ... 0&start=20 P.S...WELCOME!!! =D>

Thu Dec 22, 2011 1:34 pm by frankieD

fschris wrote:So there is a local m500t for sale. Owner says selling for a friend who passed away. Advises it makes a buzzing noise and goes into protect. Seller also adivses may see some resistors blown inside and or kids hooked it up wrong.

Can anyone here help me trouble shoot if I bought this? Cost is 100 bucks.Any schematics around I can use ?
I have a soldering iron and some electronics exp building crossovers etc... I am not a totally noob but Im no genius either

edit: I found the schematic online
edit: is should put this topic in repair!

Chris

I can't help with the problem except to suggest that you grab it & send it to Bob or Rolland. They will refurb it for approx $300.00.

You will then have a "new" M500t for a little over $400.00

A Deal !!

Thu Dec 22, 2011 2:35 pm by fschris

kingman wrote:BillD is the undisputed "KING" of the 500t, however he is currently unavailable to help you. If you are technically inclined I'm sure someone on here can assist. Start by getting the service manual....http://www.carveraudio.com/index.php/ma ... 0&start=20 P.S...WELCOME!!!

thanks... i took a look over this and does not look to bad.

do you or anyone have a couple steps to start to troubleshoot... the main things to isolate the issue ...etc.

also... what would make it unrepairable at the DIY level?

i'd love to send it to carver but I'm on a budget

PS got the seller to 75... more interesting price

Fri Dec 23, 2011 2:18 am by F1nut

Never, ever buy a broke dick piece of audio gear. Never!

Fri Dec 23, 2011 3:09 pm by frankieD

F1nut wrote:Never, ever buy a broke dick piece of audio gear. Never!

Why do you say that Jesse?

If he can get an M500t with a hum/buzz or someother failure but at $75.00.

A trip to Rolland and $300.00 or so will result in a completly refurbed (and possibly upgraded) M500t.

Normally I would never disagree with you but I have to ask this time.

Fri Dec 23, 2011 7:10 pm by jjptkd

If the cosmetics are good you could flip it on eBay "as is" and make a quick $75-$100, possibly more. Even refurbished the m500t seems to top out in the $450-$500 range so from a purely profit motivated stand point the "quick" sale, let someone else deal with it would be the route to take. If you want the amp around for a long time, send it in for a complete go through, you'll still end up around the average "used" price for a fresh model. My .02

Fri Dec 23, 2011 7:30 pm by F1nut

frankieD wrote: Why do you say that Jesse?

If he can get an M500t with a hum/buzz or someother failure but at $75.00.

A trip to Rolland and $300.00 or so will result in a completly refurbed (and possibly upgraded) M500t.

Normally I would never disagree with you but I have to ask this time.

Frankie, you can disagree with me anytime you want.

I say it because unless you know exactly what is wrong the risk is too great. In this case he doesn't know exactly what is wrong, does not have to skills to repair it if he did nor does he have the money to send it off for repair.

Merry Christmas,
Jesse