Question about Yamaha PSR-S700 ARRANGER WORKSTATION Keyboards/Midi

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I have a Yamaha PSR-S700. Recently, the touch sensitivity in one of the keys stopped working. Very little pressure applied would cause the note to sound as if the touch sensitivity was off completely. Now the key has stopped working completely and the action feels different to the other keys. The keyboard has never taken any knocks or been damaged in any other way. The key in question is an 'A' key which is commonly used, but no more so than many other keys. Just wondering if anything can be done about this problem. Thanks in advance for your help.

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You MAY be confusing touch sensitivity with VELOCITY sensing. Touch sensitivity is PRESSURE put on AFTER the note sounds that causes modulation. VELOCITY is what is used for example to control the loudness of pianoo notes depending how fast they are struck. VELOCITY sensing is done by using TWO contacts at every key... one closes first. IF one of these gets dirty, FULL velocity will be sensed and it will be LOUD. The contacts can be cleaned using ONLY 99% isoprophyl alcohol and Qtips after MUCH disassembly of the keyboard. The contacts are conductive rubber pills in silicone rubber domes. Clean boththe contacts and the circuit traces they pres down onto.

Posted on Apr 02, 2011

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My yamaha psr s 700 changes sound sometimes hand with all d bottons Woking if I start d keyboard all botton will not come up util 20mins after switched off plz I really a solution cus im so tired


lots of issues there
will need taking apart to find the faults and repair

some possibles
power source input low
internal circuity faults
switches
dry solder
diode faults
internal dust build up


One of Yamaha's new arranger keyboards, the PSR-S700 is the more entry-level model, but still comes with a range of impressive features:
  • 61 touch responsive keys
  • 96 notes of polyphony
  • 5.7-inch QVGA LCD capable of lyrics and score display
  • AWM (Advanced Wave Memory) sample sounds
  • 813 preset voices made up from 317 voices, 16 drum kits, 480 XG voices
  • 10 MegaVoices
  • 11 Sweet! Voices
  • 18 Cool! Voices
  • 14 Live! Voices
  • 9 Organ Flutes
  • 2 layer voices
  • Large number of preset and user-definable effects including reverb, chorus, 4 x DSP (Digital Signal Processing)
  • 205 preset 8-part auto-accompaniment + user category with mixer controls
  • 16 track recording
  • 30,000 note capacity
  • Performance assistance technology









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Hi, i think you can. You can go to any of the Yamaha companies around you area and explain to them the problem of the keyboard. They will give you good and quality replacement part for your Keyboard.

Make sure you go to only Yamaha company to avoid getting a wrong part for your Keyboard.Avoid road siderepairsforissue like this,it's more complicated to handle

I guess that will do.

Thanks for using fixya...

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