Wheer would I go to get a Back light for an LCD screen in a Technics PR-305 Digital Piano?

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 ...

I would suggest taking it into the nearest factory authorized repair center. Go to the Technics web site to find one in your area.

could be a power saving feature check your manual

Hi!
Most cases you can replace just the backlight itself, not the whole display. Contact http://www.telesisgear.com/index.html for the part. It's a relatively simple repair, but if you can't do it yourself, most any music repair shop or music tech can take care of it short order.

Yes. It is a fluorescent tube. It has to be from the OEM though.. It usually comes as a diver board and tube assy.

yes maybe you may fined that some of the power to the led is being blocked by causing a larger resistant to the led which will cause it not to light up as bright.

It could be the light, or it could be the inverter that powers the backlight. Try asking this guy: http://www.mikebarden.com/technics-electronic-digital-kn-pr-px-piano-keyboard-ensemble-repairs/

Only by replacing the screen.

The Speakers can be replaced with any brand. The thing you need to know is the OHM rating for the speaker. OHM is also called impedance. Unless the sticker has fallen off the back of the speaker that information will be on that sticker. OHM rating MUST match the old speaker. For instance 4 OHM, 8 OHM, 16 OHM are common ratings. All different ratings but VERY important to get this correct otherwise you could damage the electronics of your instrument.

It sounds like you are in need of a new piano. These are common issues with keyboards. The age is a big factor. It would cost just as much in repairs as it would to buy a new keyboard.