Lost sound wen moving pv 1500's

Question edited for clarity, full 'make model (what it is)'.
Question moved to make / model category.

It sounds like a power board or overheating issue. Find your local Peavey agent and take it in for repair. If you want to try something, open it up and look for a cooling fan and fluffed up vents.

Peavey PV 10 USB Mixer PCBs Main Logic Board Repair and ...

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Whether is completely off, not turning on, even after hours on charge, we can fix the most problems which can occur from the intelligent battery or internal ...

PV10 mixer does not turn on. - Peavey Forum

https://forums.peavey.com > Pro Audio > Mixers
Nov 24, 2015 - Hi! Last night I was using my PV10 and suddently it turns off. This morning I opened the mixer and I took a look at the power supply board.

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It sounds to me like the woofer is blown. use an ohm meter to check for continuity. If it reads open, replace/recone the speaker.

The pot needs to be cleaned. Get a spraty can of DeOxit 5. Spray it into the track and move the slider up and down a number of times. If that doesn't fix it, replace the slide pot.

Suspect that the pot is broken, or start cleaning all the back switches, this pv amps suffer from a terrible switch quality.

Check the resistance across the woofer connection points. Using an ohmmeter, you should se around 6 to 8 ohms. If there is no continuity, you have a blown speaker.

I do not understand what you mean by "removing the jack assembly". If you mean you leave it connected but hanging out, the problem is LIKELY you are driving it too hard and the protector is activating. Having it outside would cool the protector. You need to evaluate how much you are sending to this cabinet and see if it is within the ratings. This is a VERY compact speaker rated at 800 Watts peak and 400 Watts PROGRAM... read that as using a 200 Watt RMS amp driving it... for safety. There is a chance that the connections to the speaker are loose and removing the jack puts a load on the connectors... they are probably some of those lousy push on connectors... This is the best plan: Use a sound level meter to make sure you are not exceeding the 118 Db sound pressure level the speaker is capable of. Realize that the kick drum puts pulse type load into the speaker. Most likely you are tripping the PTC speaker protection circuit that is probably located on the jack assembly... the PTC will typically be a disc about the size of a quarter with two leads. It heats up and opens the speaker circuit until it cools down... takes a few seconds. In free air it might not trip due to air cooling. DO NOT drive your speakers too hard... they are EXPENSIVE to replace. If you need more sound put another speaker in parallel. I know a lot of deaf musicians so get a meter and check the SPL... You want to keep it around 85 to 90 Db with peaks that can go to a little over 100. There are OSHA limits. Read up on hearing loss...

Mis-handling is the usual cause of this. This can also occur if the clamps don't hold and the transformer slides around. OFTEN you can splice in a short piece of magnet wire to repair these. Splice and insulate well.

Look for reliability foremost. Read reviews.

Look at used equipment for defective items. If you see a lot of broken brand "X" you can be sure they are failure prone.

Find these at eBay and also Musiciansfriend used department. Read descriptions looking for things like "not working", etc.

This is the type of repair that should be done by a qualified service person.

Check if you may have knocked off the speaker leads OR ones to an expression pedal.