What is the name of the first Demo Song on the Technics SX-PR250 Digital Piano?

https://www.synth-parts.com/en/Keyboards/Technics/Technics-E-Pianos/Technics-PX-Series-E-Pianos/

Try these first:

https://www.justanswer.com/electronic-musical-instruments/axjnq-technics-sx-pr53-piano-sustain-pedal-will-sporadically-stop.html

http://www.mikebarden.com/technics-electronic-digital-kn-pr-px-piano-keyboard-ensemble-repairs/technics-spares-spare-parts/

https://ourpastimes.com/how-to-repair-a-technics-piano-12377949.html

technics-keyboards-forum

Technics, digital piano, keyboard repairs, repair, service ...

www.mikebarden.com/technics-electronic-digital-kn-pr-px-piano-keybo...

technics, technic, tecnic, digital piano repair, service, servicing, digital, electronic, ... pr200, pr250, pr270, pr3, pr300, pr303, pr305, pr307, pr350, pr370, pr40, pr5, pr50, ... It needs extremely specialised repair work which must only be carried out by .... nodisplay, LEDS don't light up (except for the one on the front of the piano ...

The manual should be here-
Technics Keyboards Manuals

Also, in addition to more info I need; look on p 91 of the online owner's manual linked below. Pay attention to Sounds and Effects, the first section therein. Follow the directions closely, esp., read pp. 26, 83, and 86 which are referenced for detailed help w/ sound issues. TECHNICS SX PR305 Manual Page 91

You don't tell us the model, but most have a "demo" button which is first pressed and then there sometimes is a start and stop button tto control it.

Usually you just select which demo BEFORE starting the demo.

If you are meaning to try to DOWNLOAD via MIDI or other those demo pieces that is USUALLY not possible as the pieces are stored in a ROM which is inaccessible via MIDI or USB.

They OFTEN don''t even send them out on the MIDI port when playing them.

I was struggling with the same problem with my friend piano. You need to replace check module which is plugged near power transistors. I found two bad transistors g109 and q119 (2SA1015). Changing those transistors and remaking soldering joints solved this problem.

http://www2.panasonic.com/consumer-electronics/support/Musical-Instruments/Technics-Musical-Instruments/Digital-Ensembles/model.SX-PR900B

Just put in your ZIP and it'll find the closest service center.

You posted in the wrong section, you will need to repost.