I have a Technics PR-305 Digital Piano the speaker and the amplifier blew. I noticed that my speakers burned. Can that be repaired to work again?

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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.

Try reloading the factory presets. If that doesn't work seek out an experienced audio technician.

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

Yes it can.....but you will need the schematics and some test gear in order to do it.....and a soldering iron....what do you mean by no surround on the speaker?? Can you post a pic??

That depends on where you live and if you want to replace them yourself. If you do then you need to make sure they match what you have, (impedance, wattage etc)

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 will be wise to replace the speakers.

It sounds like the rubber around the speakers has perished. Open the cabinet to check. If so, measure the size and order replacements easily on internet. It's a simple job for someone with a little knowhow

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.