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Roland kr7 piano speaker smoking on left side

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SOURCE: can't find a roland adapter

what's the keyboard model

Posted on Sep 27, 2008

Prestopick
  • 1 Answer

SOURCE: I need a service manual for Roland FP8 piano, or..

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 presto11@verizon.net

Posted on Nov 19, 2009

  • 1137 Answers

SOURCE: where do I connect the microphone to a piano

You need an input. I don't know which model of piano you have so I can't tell you whether you have the correct jack or not. If you have an auxilliary input jack for instance the signal from the microphone will not be loud enough. Let me know if I can help you more and give me some more details and I will try to give you some more advice.

Posted on Nov 28, 2009

  • 74 Answers

SOURCE: roland hp550g digital piano has a couple of dropped keys

Power off the unit. Disconnect all cables that plug into the speaker base if you have one - It may be wise to document the individual wires to make their reinstallation easier. Remove the unit from the speaker stand and lay it on the floor on something like an old towel - you may get some dark colored grease on the rug. Remove the screws only for the bottom rear, not the front - you don't need to remove them. Do this by gently turning the unit upside down. Only remove the screws from the sides/rear bottom, and note which screw types you removed from where. Once all bottom rear screws are removed gently return the unit right side up. now pivot the top rear cover - the sides of the cover are attached to the rear - pivot it toward the back. No need to remove the ribbon cables - just let the top lay there or prop it up with something if the ribbon cables don't have enough slack for the top cover to lay flat on its back. You should now be looking at all of the keys uncovered. notice the rear of each key is where it hinges. You'll notice the grease at the hinge point. The keys are thin plastic so you must take care not to damage them. The way to remove a key is to spread the ears at the hinge point of the key you want to remove. I use a screwdriver sharpened to a point, but a large pair of needle nose pliers work good too. You insert the tapered point of the tool between the ears gently to spread them far enough to just clear the pins. Once they are spread wide enough you'll feel them disengage. Each key also has two hooks located side by side towards the front of the key on the bottom side - they are not visable until the hinge is released, but you must realise they are there or you'll either snap the key back onto the hinge or not be able to pull the key out once you've got it off the hinge. Pivot the key towards you to remove it. What you now have in your hand is not the defective part. You have the top that is touched when playing the keyboard. The defective part is still setting in the mechanism. What's actually happened is the keys are made of very thin plastic where they are glued around the weight and this plastic breaks leaving the weighted end down there somewhere. Examine where the key top came from and how it works. The key top is the part you took off of the hinge. You can see how the keys on each side work and you'll also see what is missing from the mechanism for the key you're working on. To make things easier I always remove one additional key top on each side of a key that I repair to make access easier. Just place the other keys you remove right behind the key area in the order you took them off so it'll be obvious how they go back on. Now the broken weighted mechanism you can lift right out. Actually you can lift it out easier with the weighted end broken off, but once you glue it back together you can still get it in there without to much trouble. You only need to remove the damaged weighted mechanism for the key you're repairing. I remove the key tops on each side of the damaged key for visability only. Take your pair of needle nose pliers and pick out the broken end. Now fit it onto the end of the weighted mechanism in preparation for glueing - just so you can see how it's going to go on there. I use a high quality modeling super glue. Before I came across this glue I used JB Weld, but it takes a few hours to dry. The high quality super glue allows you to put everything back together immediately. Installation is reverse of removal: Snake the weighted mechanism back in once you've repaired it - you can always examine those on each side if you get confused. Hook the key top front first then smoothly snap in place the hinge ears over the pins. Make sure to check the movement of the repaired key, and check also to see if anymore keys are setting lower as they may be in process of breaking off. Once all keys are repaired, carefull lower the top rear cover onto the key assembly. While holding the cover onto the key assembly/base, gently turn the unit over onto its back and reinstall the screws. Should be all washer headed screws - do not over tighten. Check the keys again. Set the keyboard onto its base (if it came with one) and you're done. A little practice and it'll take you less than a half hour to fix the key and get it back together

Posted on Sep 23, 2010

  • 4 Answers

SOURCE: When I plug the pedal in and play, the music is

1.Make sure you are plugged in to DAMPER (not FC1 or FC2) 2. Check to see if the notes STOP sustaining when you PRESS the pedal. If that is the case, first try turning off the Roland with the pedal plugged in and restarting with the pedal pressed down. 3. Press the EDIT button and scroll to Damper Polarity. See if it's set to Standard or Reverse. 4. If problem persists after all that, try holding the pedal jack into the Roland at different angles and then try the same with where the cable connects to the pedal. At that point, you can either attempt to repair the pedal or get another one.
Hope this helps, Stewart

Posted on Feb 28, 2011

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Service manual for the roland piano kr375


Your best bet would be to contact Roland directly to obtain a service manual. Go to the Support link at the top of this page- Roland

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How do I change electolytic coupling caps for a Roland FP-8 Piano?


Replacing the electrolytic capacitors in this keyboard would require you to be somewhat experienced in electronic soldering, especially the surface mount electrolytics. You should be able to find how-to videos on YouTube if you are curious. You also probably do not need a service manual. The values of the capacitors should be printed directly on them. Replace them all. Replacements can be ordered from Mouser. BUT, I suggest at least bringing in a friend that has experience with these types of repairs. These circuit boards are not designed for inexperienced soldering!

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Hi, I am undecided about which digital piano to buy: Yamaha Arius 141 or Roland F110? help appreciated, thanks, karol.


I have two Yamaha's and I will say they are maintainable. Almost ALL the weighted piano key models use a keyboard made by one company as I understand it. I can easily get service manuals for the Yamaha, not quite as easy for the Roland... same goes for repair parts. Your decision... listen to each and decide. Hint: Use a set of headphones to do the compparision rather than internal speakers as the orientation in a music store can drastically change the sound.

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I assume you are plugging this into a ROLAND brand product as the Roland sustain uses a normally CLOSED contact while MOST other brands use NORMALLY OPEN contacts.

The Roland synths now monitor the pedal as the power is turned on and supposedly decides which contact type is used.

Remember that for MANY voices, such as piano, notes are held longer BUT they do not continue indefinitely just like the sustain on a real piano works. On a real piano the dampers are lifted, but the strings eventually stop ringing due to the losses of energy in the strings.

Some voices will be held,such as organ tones.

I don't have enough information from your post regarding what voice you are having trouble with.

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I have a Roland FP 1 digital piano, serial #AL21141N. It has gradually quit putting out sound through the speakers. At the onset of the problem, I could fit it by jiggling the 1/4" speaker plugs,...


I first would suspect the switches on the eadphone jack. Normally these cut off the speakers when headphones are plugged in. These jacks and the switches are really weak, poorly made, and easily broken, especially if headphone cord gets yanked.

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I have a Roland HP 2e digital piano - Foot pedal problem


The ROLAND pianos USUALLY require that you use a normally closed sustain pedal.

MANY pedals are the opposite and close when pressed. SOMETIMES you can open the pedal and reverse the way the switch works.

Oct 05, 2009 | Roland Music

1 Answer

What type of sustain pedal Roland EP-90 digital piano is using - open or closed at rest?


CLOSED is typical for Roland pianos when at rest. (open to sustain).

Note that the jack PROBABLY has a grounding contact so when no pedal is used/plugged in, the jack is shorted at the piano.

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