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My roland xp-50 keyboard is dead.

I have 110V to the transformer but the display is blank. I don't know what the output voltage is supossed to be, and I don't see any fuses or damaged circuitry.

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  • Anonymous Apr 19, 2009

    hey mine is the same way too, I just started looking

  • Anonymous Apr 22, 2009

    Same for me---power on, but LCD is blank and all functions and sounds are gone.


    Jet

  • Anonymous Apr 24, 2009

    the same happened on mine a few days ago
    any solution, please post


  • TURMIXXX Apr 24, 2009

    happened the same on mine a few days ago
    im not sure, but i think it could be caused by a power supply failure.

    any solution, please post. i will also be pleased to discuss it.
    turmixxx@hotmail.com

  • Anonymous Apr 28, 2009

    My tech here (in Hong Kong) reports mine cannot be repaired as it's a motherboard problem and these are now out of stock. I'm heartbroken.

  • Anonymous May 05, 2009

    I can't believe we all have had the problem all at the same time!!! My screen just stopped working. It still glows orange, but there is no black writing. I have a Roland XP 50. The lights on some of the buttons work intermittently. I am wondering if there is dust on the mother board or something? I wondered if it was a screen contrast setting because my child was playing with it moments before it happened. Any solutions? merridyandrew@hotmail.com

  • Anonymous May 10, 2009

    Same problem with my XP-50.

    I'm searching for a pdf free service manual for it.

    Also searching for an used mainboard for it because the problem is there.

    best regards.

    José.

    Portugal

  • John Robinson Jun 10, 2013

    I get display on LCD no problem but sadly no sound at all

  • Balaji Sridharan Jul 22, 2013

    Call 9500013495 service engg chennnai

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Ok guys. Just got mine XP50 fixed with the "No Display" problem. The LCD screen was blank without text and only shown orange color. The problem is one of the capacitors on the main board was dead. I have replaced all 3 caps on the main board and the problem is solved and if you are a little handy on soldering, you can do it yourself. The 3 caps you should replace are:

- C901 (I used 16V 330MicroF)
- C65 (I used 5V 4.7 MicroF)
- C 902 (I used 16V 330 MicroF)


Posted on Mar 07, 2010

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  • MattLen Aug 31, 2010

    In my case just changing the CR2032 buffer battery did the job. After switching on after that the display was still hardly readable, so I went through the reset-procedure as described in the Roland XP-50 TurboStart sheet (or the manual). After that everything worked fine again.
    Here is the procedure in case you don't have it:
    1.) Press UTILITY
    2.) Press 4: SOUND on he 10-key pad
    3.) Press 5: PRESET
    4.) Press ENTER
    5.) If Memory Protect is on, press DEC, then ENTER twice

    That's it - good luck,
    Matthias

  • stagerhodes May 03, 2011

    Hi,
    those caps your refer to solve the XP-50 blank display problem, are they Electrolytic ? or any other type ? i'm about to try this solution since my XP50 is exacltly with that blank screen problem..cheers

  • stagerhodes May 03, 2011

    Hi,
    those caps your refer to solve the XP-50 blank display problem, are they Electrolytic ? or any other type ? i'm about to try this solution since my XP50 is exacltly with that blank screen problem..cheers

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Turns out this is a design fault with the XP-50 model. My techie says he sees it all the time in this model. The XP-60s and XP-80s are designed differently, he says, and never suffer from this fault. His tip: if you have a unit in working condition, have the capacitors replaced. So, unless you can find a new (i.e.unused) mother board, a second-hand replacement is perhaps just a temporary fix. I've sourced a working second-hand unit and my techie is going to do the modifications required to ensure the "lights out" fault doesn't hit me again. Grim news, but that seems to be the case, and that so many of us have listed the exact same fault, seems to confirm it.

Posted on Jun 16, 2009

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Hola,soy de republica dominicana,soy tecnico de teclados roland y korg,he tenido mucho este probleam en mi taller y me he dado cuenta de que la humedad tiene mucho que ver,los xp50 se construyeron con poca proteccion en la tarjeta madre y les puedo ayudar a solucionar el problema en definitivo,audiosou@hotmail.com,no me molesta conpartir mis experiencias en la electronica.

Posted on Nov 15, 2010

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I have the same problem but in additioni have a strong noise in the left channel which stops after 4 or 5 minutes...

Posted on Aug 11, 2010

  • Theo Ntizas Aug 12, 2010

    i found another solution for the no screen problem..!
    Just remove the wire that is on pin # 3 of CN14 and solder this wire to the ground of PCB mainboard!
    This will lock the screen contrast to a standard level and you cant change it even from the menu...
    Hope this helps..!


  • wizzibizzi Jun 28, 2011

    This is the solution for my XP50! Thank you for that hint! Unfortunately i've change all the capacitors and the CR2032 before trying this... but only your hint (removing pin #3 from CN14 and connect to pcb mainboard ground) does it... i'm happy, my XP50 is alive! :)

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Plug it in!

Posted on Apr 07, 2009

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Just encountered the blank display problem on my XP50.

Changed the CR2032 buffer battery and went through the initialization procedure as decribed on the Roland TurboStart-sheet. http://cms.rolandus.com/assets/media/pdf/XP50ts.pdf

After that everything worked fine again.

Hope this helps!

Posted on Aug 31, 2010

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Dear, you can get one here

http://servicerepairmanuals.net/others/roland/roland-xp-50-music-workstation-service-manual-notes/

Posted on May 20, 2012

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I have a roland jv50 with no diplay problem too are the capacitors in the main board still the problem too?? could u help me guys

Posted on Apr 25, 2010

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