My Prokeys 88 Premium stage piano needs 'parts' to repair the middle B,C & D where can I find them?

Hi,

please restart your piano and attempt to get sound again. If not working still, then you can attempt a factory reset. Otherwise, please change the head phones or audio out device and play some test songs or keys.

Thank you.

most are, (volts, amps.watts and pin wiring)

there is no standard on wall warts. ever, for sure world wide.
no thing told Prokeys 88 what is that?
ahh my wild guess is gee you posted to computers and is not
it is a music keyboard (cheap)
Prokeys 88 SONO? what is it exactly the SONO uses standarded USB power pack like used on cell phones.


the sono runs 2 ways with USB power pack
or connected to any PC with USB cable (5vdc is USB)
the non sono 88
uses a 12vdc power pack
I say use 12vdc pack 2 amps. web cameras CCTV IP cams sold vast these.

the non sono page 4 clearly states (gee first google hit too)
12vdc, 500mA (1/2 aMP OR MORE) AND CENTER PIN PLUS.

https://www.manualslib.com/manual/293107/M-Audio-Prokeys-88.html?page=4&term=12v&selected=2

EASY peasy japaneezy./

The place to get the best help for Kurzweil gear is Sweetwater Sound.
Other than that, always use it in stereo mode with a decent sound system. Always use speakers with at least a 15" woofer and a horn to get the full range of sound it's capable of.

NO - try the

• Yamaha CP4 Digital Stage Piano which replaced it.
• A Roland Digital Piano
• NORD

e.g.

http://www.ebay.com.au/itm/Global-AC-Adapter-4-M-Audio-Prokeys-88-Stage-Piano-Charger-Power-Supply-Cord-PSU-/260991184879

First thing is to verify if the sound is there using headphones. This is important test as it isolates problems in power amps and other connected equipment that may be sensitive to the particular pitch of those keys. If it is in the headphones, then likely you will have to take it to a repair shop as the problem would be very deep in the unit's sound generator hardware.

This is a midi lockup problem with conflict somewhere in your setup. Have you switched midi local off on the keyboard?

It is NOT likely the keyboard is "killing the speakers"... OR the headphones for that matter.

I suspect the problem is bad switch contacts in the headphone jack that cut off the speaker line outputs when headphones are plugged into the pro keys. These jacks are, to put it bluntly, JUNK... they are EASILY damaged by pulling the cable plugged into them sideways. You will need to service the unit.

Reset the 88 by switching off --> hold the - and + buttons while turning on. Your device will reset and usually everything should be solved.

here's a link for places to start calling around