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Have you measured the voltage and confirmed the polarity is correct? If yes to both of these then the problem is in the keyboard.
Can you get it to flicker / on off if you insert the adaptor plug and wiggle from side to side ( wiggle the plug - not you wiggle side to side ! )
If this makes an intermittent connection then you need to replace / refit the power socket. These have a habit of breaking the solder joint to the pcb.
Report back if this is not clear or you need further advice.
Have you measured the voltage and confirmed the polarity is correct? If yes to both of these then the problem is in the keyboard.
Can you get it to flicker / on off if you insert the adaptor plug and wiggle from side to side ( wiggle the plug - not you wiggle side to side ! )
If this makes an intermittent connection then you need to replace / refit the power socket. These have a habit of breaking the solder joint to the pcb.
Report back if this is not clear or you need further advice.
A blown fuse will not produce smoke. A component failed and probably fried a resistor, which would smoke. That in turn would blow the fuse.Just replacing the fuse will not cure the problem. Your unit needs repair.
Is it potentially fixable, but probably not worth it. By the time you have paid for spares and an engineer to fix it it would be more than the amp is worth. If it is within warranty then take it back to the shop. It may well have been a fault with the amp.
When i turn on my 212R it turns on in drive channel. if footswith is plugged in, then it turns on in the clean channel, but after switching in drive it is impossible to switch it back in clean channel. What could be wrong? Swith position doesnt change anything and it seems like switch is OK.
There is a problem in the PMP5000 that is LIKELY in the PMP3000 as well.
The problem is arcing in the rear-most power amp near the heatsink.
When this gets bad, it will short out and fry the power supply and the amp if it persists. The arcing will trip the overcurrent sense and shut down the unit including the display until it finally goes completely.
I have repaired two of the 5000's now with identical problem. There is inadequate insulation in a multi-layer board in the rear-most power amp. The arcing occurs between the output lead of the switchers and the source lead circuit trace for the 9640 switcher transistors. The output switcher lead unfortunately is an internal circuit trace and hard to fix. Once burned, the board becomes carbonized and conductive.
NEVER run the unit without a speaker load on the unit.
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