Peavey VYPYR 15

[Amp Kat]

Nice call Enzo that was a pretty swift assumption. Power supply should be the same.

[tim]

All those voltages are way low. Is this amp set up for 240VAC operation or something?

This only comes from experience...you can't learn this kind of stuff from a book or school.

Good call Enzo!

[Enzo]

Thank you, thank you, I'll put the gold medal in the case with the others.

Unfortunately the waitress at the local diner doesn;t know about this, so I still will get her thumb in my soup.

[Valvehead]

This only comes from experience...you can't learn this kind of stuff from a book or school.

Good call Enzo!

This is why i call him "the Master "

[cerveza]

Schematics for Peavey products are usually easiest to find at customer service at Peavey.

NO lights means either the logic has no power supply, or the logic has failed. Customer serviec can tell you the reinitialization procedure. ther are four buttons and you hold 1 and 4 or some combination while you power up. There are only a few combinations, so if it is not 1-4 or 1-3, keep trying combinations. or ask them. it might be all you need.

Hi! Have you also schematics of midi & USB and board layout?

[Enzo]

COntact customer service at Peavey, they will send it to you.

[ivanceins]

Footswitch for peavey vypyr 15

Hello,
I bought this peavey 15W some time ago and I w'd like to make a footswitch to switch between the different presets (I know this amp doesn't have a footswitch input), does somebody know if it's possible to modify or to add a circuit and "make" an input?

[J M Fahey]

Short answer is "no".

[s1ms]

You could have the same problem like I had. Faulty 2040 chip which killed the 18-0-18 bridge rectifier diodes thus no power to the DSP board. Check the diodes D3 D4 D5 and D6. If they are faulty the DSP board won't get the power supply. Also get a new TDA2040 or TDA2050 chip. Simple fix.

[neo27ny]

You could have the same problem like I had. Faulty 2040 chip which killed the 18-0-18 bridge rectifier diodes thus no power to the DSP board. Check the diodes D3 D4 D5 and D6. If they are faulty the DSP board won't get the power supply. Also get a new TDA2040 or TDA2050 chip. Simple fix.

I had sent you a pm s1ms about this problem. I went and rechecked the diodes and they all seem to be fine.

[upicman]

I just bought a Vypyr15 at a flea market and there is no input jack or board. I looked at the schematics Enzo supplied earlier in this thread and did not see anything for the input board itself.

What circuitry is missing? An op amp as a preamp? If I had a schematic I could build a replacement. I see a signal input, +/- 15VDC, and audio input. Do I need to ground the Input_Jack signal to get it to work? It doesn't seem to make any difference. I only get a faint buzz at full volume when I touch the pin 6 of P5 with my finger. Also, the pins on the six pin ribbon cable seem to be inverted based on voltage readings.

Any help is appreciated. I could not find schematics on the Peavey site.

[Jazz P Bass]

Here is the input board schematic.
I would call Peavey & see if they have the board.

[upicman]

Dear Mr. Bass,

Thank you for your prompt and informative response.

I suppose I could order one from Peavey, but what would be the fun in that? A $5 amp that I fixed with spare parts in the basement = Priceless!

Thanks again!

Rick

[Enzo]

Peavey has a zillion models, and they will send you any schematics you ask for.