Question about Peavey ValveKing VK112 50W Combo Amplifier

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Will not power up. I turn on the power and stand-by switches and get nothing. I don't think it's the transformer since the was no "burn" smell when it went out and I tried replacing the external fuse to no avail. There are 3 internal fuses so I was wondering if that could be it. Recently did a tube swap for JJ teslas. Switched back to original tubes when the amp went out and still nothing. Please help. I love this amp....

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 5603 Answers

SOURCE: Amp will not turn on.Fuse and tubes are in good

Likely a bad power switch, or possibly a broken power cord.

Rarely a fuse holder or transformer go bad.

Posted on Sep 02, 2009

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SOURCE: No sound coming out of speakers when turned on

If you get absolutely no sound, not even a pop when changing the standby switch, this probably means the rectifier OR the switch has failed. The red light just means power is getting to the power transformer... probably fuse is OK.

Posted on Sep 28, 2009

  • 1 Answer

SOURCE: Hi, My Peavey Classic 50/50 has power (leds are

Hi,

I had checked the fuse for the heater circuit and found that while it was testing on a low ohm check meter - it was not sufficiently handling the
full demand of the circuit - I put a bypass on the fuse and found the problem. The fuse appears to have been previously replaced with
a type not original - the original was a ceramic case fuse 10A.

I appear to be operational

MB

Posted on Dec 28, 2009

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SOURCE: I have a peavey classic 20 guitar amp that works

What do you mean they "switch off"??? If the heaters in all the tubes go out, check the fuse for the heaters, F2 and its fuse clips/holder.

There really is nothing in the circuit to make them "switch off"

If the heaters in the EL34's "switch off", the other tubes should go out as well.

Posted on Jan 25, 2010

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SOURCE: My amp stopped working after 2 days from the day

Take it back for warranty replacement or repair since you only had it for 2 days. Since there is burnt smell this could be very serious problem. Probably a fuse blew due to any of several problems.

The pilot light runs off a rectified output of the power transformer but it is fused. There are three sopplies from the transformer and any of those could have a short and blow the main fuse or their individual fuses.

Take it in as I stated as this is NOT DIY repair. There are high voltages in this unit and if one is not adept at electronics you probably would not be able to repair it anyway.

Posted on Nov 29, 2010

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