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Buzzing problem with Technics Digital Ensemble SX-PR603/M Piano..

I have a Technics Digital Ensemble SX-PR603/M which I purchased in 2001. It's been a great instrument until this past spring when it developed a "fuzzy" or "rasping" quality. When the problem developes I locate a particular note that has this buzz and play the cord of which this note is the root tone. I then play several similar cords at different positions on the key board, while increasing the volume.Eventually there seems to be a "letting loose," with the rasping sound increasing upwards in pitch as if traveling up to the highest reaches of the keyboard itself. By this time the "rasping" may have become a "crackling" sound. This "letting loose" can occur without any warning and it can be startling to the listener.After 2 or 3 minutes of tinkering around in this fashion the istruements's normal clarity usually returns. The sound of the piano then seems to remain clear until the next day.Any idea what might be causing this to happen? And is there anything that can be done to rectify the matter?Thanks,Tom

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5 Suggested Answers

reddevil6
  • 1673 Answers

SOURCE: NO SOUND

You posted in the wrong section, you will need to repost.

Posted on May 13, 2008

  • 85 Answers

SOURCE: my grado sr 225's have developed a crackling noise

You have damaged the internal drive units,need replacing

Posted on Jan 19, 2009

ladyaudio
  • 22 Answers

SOURCE: midi keyboard sound quality bad

you are likely running it thru a soft synth. Check the help files there is a section in there on "using soft synths" that will explain it more fully. Plus a usb connection can sometimes be problematic (not always). But the tutorial in the help files will tell u how to use the sounds from the piano instead of the MIDI sounds

Posted on Mar 05, 2009

  • 1 Answer

SOURCE: I have a Roland HP2e

Just managed to fix key loudness problem on my sister's HP-2E after talking to the local Roland Service Center. Basically I had to remove all the rubbery strips under the keyboard, clean them and clean all the contacts on the keyboard PCBs with CO contact cleaner. Not a trivial procedure - 80 or so screws to remove and replace and a lot of parts.
It has completely solved the problem (apparently its not unusual on any keyboards). I have posted more details and a couple of pictures on my blog (http://web.me.com/iain_sommerville/Home/IainBlog/Entries/2009/4/20_Piano_Repair_2nd_Attempt.html not sure if that is a permalink - if it doesn't work go to http://sommerville.info and search for HP-2e).
A roland service center can fix this as well however it is pretty time consuming so they will charge you. They can also sell you replacement keyboard contact strips if cleaning them doesn't work. Hope this helps

Posted on Apr 20, 2009

  • 5603 Answers

SOURCE: Our Yamaha clavinova CLP-115 is buzzing, even with

Without power to the unit no sound should be generated. Make sure there are no other connections.

MAYBE you have a wall transformer behind it that is buzzing. MANY wall transformers develop buzz.

Another source is flourescent lights and even some of the low voltage halogens have noisy transformers in the base.

Posted on Nov 18, 2009

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NO SOUND


You posted in the wrong section, you will need to repost.

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