Need instruction manual for Concertmate 990 piano keyboard

For sale online: http://www.manualswarehouse.com/mant008.htm

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

You cn get some kind of manual from here:


http://support.radioshack.com/support_games/40944.htm

Download it here:
http://www.manualowl.com/p/Yamaha/PSR-E303/Manual/87376

Read about initialization on page 61 of your user manual. This is a factory reset. There are two procedures there. If you don't have the manual download it here:

www.yamaha.com/yamahavgn/.../ypg_525_eng_manual.pdf

Yamaha prefers to MAKE the instruments rather than conducting repair schools... they may have some very specialized schools for individual types when first introduced. With the situation in Japan right now such classes would be cancelled I am sure. Instrument repair is so specialized other than basic piano repair/tuning that you will find few if any courses. For piano repair you might want to search YouTube for videos. For organs and keyboards, detailed electronic knowledge and the service manuals are what we have to work with. You need both experience in digital and analog plus test equipment including oscilloscopes and signal generators as a start.

Here is a link:http://www.williamspianos.com/products/encore.cfm If you don't have one, download the manual. If it still doesn't play correctly with the pedal connected according to the manual you will have to contact them to see about servicing. The information is also at that link.

Did you ever get hold of an FP-8 service manual? The weight replacement is relatively simple: The case opens by removal of eight screws, four at each end on the underside. The top then hinges up. Keyboard assembly is removed by first unplugging the two white ribbon connectors at the center, then removing the screws at the front edge (underneath) and the screws (gold) at the back of the assembly (accessible from the top). Keys pop out by spreading the two "wings" at the pivot point, and then the weights (Roland calls them "hammers") lift out. Roland will sell you new ones, but I have no idea whether the replacements are any better than the originals. I've done two of these pianos so far, and have a third waiting to be worked on. I do have a service manual, but I think I downloaded it freebee somewhere.
The other failure mode on this piano is the electolytic coupling caps on the output board - I've replaced all of them on both pianos - don't remember the value offhand.
Paul Prestopino [email protected]

There is no need for a manual. It is so easy to operate because it is designed for easy opeating. If you need a manual to operate the PSR-510 then you really won't be able to operate it even after studying the manual. But here it is just in case you can by some miracle!
http://www2.yamaha.co.jp/manual/pdf/emi/english/port/PSR510E.pdf