Tell me if this is right

Gunner Recall · Post by **Gunner Recall** » Mon Apr 16, 2012 8:36 pm

Seems steep.
Repairs probably cost as much as the amp is worth :idk:

Officer Bukowski · Post by **Officer Bukowski** » Mon Apr 16, 2012 8:38 pm

Fuzz_Pi wrote:^yeh i agree with all said here.

The whole microproccessor thing is sketchy, unless the amps reverb is digital.. Even still that terminology is slightly

The ICs will cost max like 20 dollars to replace

Something is strange here

They're much cheaper than that and if they're socketed then definitely just replace them yourself. If the tech has to desolder them, that would be a massive pain in the ass and worth a decent amount of money.

I'd take it to another tech if you can just to see what they say is wrong with it and if it lines up with what the other guy said then I guess it's legit.

McSpunckle · Post by **McSpunckle** » Mon Apr 16, 2012 11:44 pm

wsas3 wrote:A Peavey classic 30 from the mid-90's. sorry, should have mentioned that.

http://www.bustedgear.com/repair_Peavey_classic_2.html

Does that look right? Like... the same amp? I don't know the history of Peavey amps and if there's lots of versions of the classic 30, but it looks like there's only 1 IC in the whole thing and no microprocessors.

Ask the tech to show you the components that are being changed. ICs are chips. Like my avatar, but the ones in your amp will be half as long.

Microprocessors are ICs too. They look the same, usually. At least in this sort of thing.

wsas3 · Post by **wsas3** » Mon Apr 16, 2012 11:50 pm

Thanks, McSpunkle!
I think the microprocessor has to do with the reverb tank, which was totally busted up. When I turned it up, it was just immense feedback. The guy at the music store called for the tech, and he may have made a mistake by calling it that, but if the reverb is digital it would make sense.

McSpunckle · Post by **McSpunckle** » Tue Apr 17, 2012 12:20 am

Google seems to say that the reverb isn't digital, and the fact that it has a tank at all means it uses real springs, so it's totally analog. In which case, if there was a problem with the tank, you just replace the tank.

I dunno. I don't want to call the dude a liar, but it seems a bit weird to say "microprocessor" if there's not one in there. The only things that resemble them in that amp are the ICs, and he seemed to know those were something different.

Alas, maybe Google is failing me right now. But there's a lot of talk about replacing the reverb tanks in Classic 30s. Just ask the guy to show you the parts to be safe.

Chankgeez · Post by **Chankgeez** » Tue Apr 17, 2012 12:23 am

Yeah, I was gonna say that I thought those amps had "real" reverb.

wsas3 · Post by **wsas3** » Tue Apr 17, 2012 12:26 am

There are a lot of different models, but yeah i don't see much of microprocessors for the reverb. I'll talk to the guy, thanks y'all! Aside from that everything seems to make some sort of sense, but I'll check just to be sure.

dubkitty · Post by **dubkitty** » Tue Apr 17, 2012 1:39 am

whether it has a tank or not, unless the reverb is driven by one of the tubes it's going to have a chip or microprocessor amplifying the signal.

D.o.S. · Post by **D.o.S.** » Tue Apr 17, 2012 2:09 am

Silly dubkitty, chips drive motorcycles, not tanks.

McSpunckle · Post by **McSpunckle** » Tue Apr 17, 2012 3:00 am

dubkitty wrote:whether it has a tank or not, unless the reverb is driven by one of the tubes it's going to have a chip or microprocessor amplifying the signal.

That's what the one chip shown in the schematics does. It's a dual op-amp.

Here's the schematic. I looks to be an official one from 1994.

http://www.blueguitar.org/new/schem/peavey/c30schem.gif

Sometimes diode bridges are in a DIP package too, but I think that's for much lower powered things. And the schematic shows discrete diodes.

Other than the possibility of the dude lying, it could just be that he's calling things by the wrong name (calling discrete transistors ICs, for instance), since those things would probably be the first to go if something went wrong in the power supply and caused them to get too high of voltage. Granted, that would require a pretty awful even happening in that amp. Something would have had to cause the high voltage to short with the lower voltage. :idk:

In any case, I'd just recommend that you ask the tech to show you the parts, like MLC said. Then you should be good.

ilovefuzz.com

Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right

Re: Tell me if this is right