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How to repair keys on roland rd 250

Broken keys need to be replaced

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Posted on Jan 02, 2017

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SOURCE: My Roland Rd-500 has no sound....the factory demo

You either did not get the ribbon cable seated OR got it upside down.

If this cable is the flat ribbon with exposed solder plated points of contact, OFTEN those connectors have a latch to release by GENTLY moving tabs on eaither side in the direction of pulling the cable out. This lock MUST be moved out slightly to allow the cable to seat properly. The solder plated contacts will be FULLY into the connector when seated properly.

These cables ALSO can be inserted backwards and NO connection will be made.

Posted on Feb 14, 2010

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SOURCE: how to repair broken keys on roland rd 300s

This depends on "how" they are "broken".

Many of the keyboards with semi-weighted keys get the keys knocked out of the pivot points and one has to open the unit and reseat the key and/or the key spring retainer.

If the keys have broken parts, replacement is the only option.

Posted on Apr 20, 2010

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1 Answer

How to replace roland xp 50 keys And also repair outputs


Disassembly the unit.
Your question is less detailed. If the keys is broken,replace with new.
If you mean "How to",then you need the service manual.
Outputs problem,usually causes by output IC (or input IC) is defects.
It also can cause by AD/DA IC is error.

Mar 15, 2015 | Roland Music

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Replace broken hammer key on roland kr 575


I've actually repaired two broken hammer keys on my Roland KR-575, after paying $250 (TWICE) for a repairman to come to my house and fix two other keys.
The repair I completed was about four of five years ago. I searched the internet and found great instructions to print out. Unfortunately, I can't find them again. HOWEVER, I did find this video: Roland Keyboard Repair. It shows you the hardest thing about the repair - how to take the cover(s) off to get to the keys! The video is not as detailed as the instructions I used before - but pretty good. The parts cost me about $25.

Unfortunately (for me) I have yet another key to fix now. This time I will take pictures and notes and update here with my results. It might take several weeks though (I'm trying to finish a big school project). In the mean time, try the video. I don't recommend trying super-glue like the video says, but sometimes finding parts is difficult, so I guess that might be an option if you couldn't get the parts easily. I just don't think a weight repaired with super glue will last very long.

Here are a few suggestions to find the parts you will need:
My other advice is to keep careful track of all the different screws you take out - and away from kids, grandkids, and pets - so you can put them back in the right place after your key repair is finished. (The screws that is ;)

Apr 22, 2012 | Roland Music

1 Answer

Roland f-50 First 7 right hand whites keys appear to have lost volume and sound off / flat.


One of the lines in the keyboard scanner has opened up. I have an idea what it might be and it is a nasty problem involving circuit traces that are silver conductive paint on a plastic insulating base that separate from a jumper at each end of the strip that the key contacts are made by conductive rubber pills pressed down by the keys. The contact of the flexible circuit under the keys to the jumper cable can be broken by vibration. I have an EPS7 with the problem and other than replacing the whole contact strip under the keys it really has no easy solution.You should probably have a Roland shop look at this problem. If your unit has this same arrangement it is repairable only by replacing the whole key contact strip.

Jun 08, 2011 | Roland Digital Piano FP4 Black With Stand...

1 Answer

How to repair broken keys on roland rd 300s digital keyboard


This depends on "how" they are "broken".

Many of the keyboards with semi-weighted keys get the keys knocked out of the pivot points and one has to open the unit and reseat the key and/or the key spring retainer.

If the keys have broken parts, replacement is the only option.

Apr 20, 2010 | Music

1 Answer

My Roland Rd-500 has no sound....the factory demo


You either did not get the ribbon cable seated OR got it upside down.

If this cable is the flat ribbon with exposed solder plated points of contact, OFTEN those connectors have a latch to release by GENTLY moving tabs on eaither side in the direction of pulling the cable out. This lock MUST be moved out slightly to allow the cable to seat properly. The solder plated contacts will be FULLY into the connector when seated properly.

These cables ALSO can be inserted backwards and NO connection will be made.

Feb 14, 2010 | Roland Juno-D

2 Answers

Where do I get spare parts for my Roland rd 300s. Thanks


It depends what parts. Mechanical things and special chiops you need to contact Roland support parts dept. Go to Roland site and go to support.

For common electronic parts, go to DigiKey.com or Mouser,com.

Feb 11, 2010 | Music

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