20 Most Recent Peavey PR15 400w PA Speakers - Page 4 Questions & Answers

1 3k amp powers up but no sound Peavey Forum Tube Amp Troubleshooting 101 Amp turns on no sound tubes wont light up Peavey 6505 Amp turns on no sound power tubes don light

You could try Googleing it, if you havn't already. Another method I've used on other guitars was to carfully remove the neck from the rest of the guitar. Manufacturers often put the production year on a tag or even printed directly on the wood body under the interfacing part of the neck. Some risk= "what if I damage my guitar?"

Probably 1997

you could have blown a resistor or transistor since it's not a tube amp.

go to: www.shematicsunlimited.com/p/peavey/ download service manual.

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Not sure about the KB-1, but many newer Peavey amps ( A Vyper for example) have the fuse soldered to the circuit board. If you're going to go through the effort of soldering, I'd suggest buying, and soldering in, a rear panel accessible fuse holder, so you only need to do it once.

Turn your guitar away from the amp's speakers. The pickups on the guitar are feeding the amp's signal back into the amp creating a feedback loop, especially with the gain button on. Loud volumes cause this looping path between the amp speakers and guitar pickups. You may need to reduce amp volume also.

What kind of casters are you installing? There are two types, ones that have a shaft sticking up from the base and ones that only have the flat base with four screw holes - I recommend using the flat base ones. There is no real easy way to open up the bottom of the cabinet as it is glued and then covered with the tolex or similar material. If you have the ones with a shaft I recommend getting the other type. The shaft has a socket you have to install in the bottom which makes them removable. There is no reason to remove the casters so get the ones that are screw mounted.

Yes..these amps due have fuses. Check to make sure the fuse is good, it should be close to the power cord in the back under a small, black, screw on type knob. You should also check the power on/of switch and power cord for issues.

First - Check the connections on the speaker itself - when speakers don't work. it's usually the wires from the power amp section to the speaker. If those are OK, try replacing or bypassing the headphone jack - you may have a short in the output jack. Good Luck

Sounds like your speakers may be out of phase. Reverse the connection on ONE speaker (swap the wires connected to one speaker.

Check the wiring from your input jack. A short in the connection to the pc board in the amp could cause this . However, are you sure both the supersat and post volume are turned down to reasonable settings? If your distortion channel is too loud, it will feed back and squeal through the speaker.

Your amp has two inputs - Passive and Active. Do you get the same results plugging into either one? If only one works, then the other needs reconnection or replacement.

Have to tried swapping the speaker cables?

Peavey Mark III and Mark IV were popular in the early 1980's.

1993

https://assets.peavey.com/literature/manuals/80361051.pdf

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https://r.search.yahoo.com/_ylt=Awr9DtVGSN5bJo8AUtZXNyoA;_ylu=X3oDMTByNDZ0aWFxBGNvbG8DZ3ExBHBvcwM2BHZ0aWQDBHNlYwNzcg--/RV=2/RE=1541322950/RO=10/RU=https%3a%2f%2felektrotanya.com%2fpeavey_kb2.zip%2fdownload.html/RK=2/RS=v0cqyXdd15jxSmLgvz06.J9xeZ8- This is the link to the service manual. Sounds like the power transistor is failing.