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David Farber David Farber is offline
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Default Carvin B2000 bass amp won't power on, need schematic.

On 9/21/2020 8:34 AM, legg wrote:
On Mon, 21 Sep 2020 09:59:22 -0400, legg wrote:

On Sun, 20 Sep 2020 22:17:29 -0700, David Farber
wrote:

Actuslly, the second relay looks more like a line voltage
selector. It will close for line voltages below 180VAC.

It looks like this unit isn't power factor corrected.


If that's the case, then you could do a quick fix by
relocating the voltage select relay to the inrush
position, short out the old voltage select relay
contact position, then place a large sticker on
the back indicating "100-130VAC INPUT ONLY".

RL

What an ingenious workaround! I'll definitely check out that relay swap
option.

By the way, the user informed me the model was not purchased in 2000. It
was purchased in 2009. There is a schematic for that year but it looks
incomplete to me. I've uploaded it to:
https://app.box.com/s/ch670hnsrtoswqhebtrye95n2vw5ktre

Thanks for your reply.
--
David Farber
Los Osos, CA