Question about Yamaha PSR-S700 ARRANGER WORKSTATION Keyboards/Midi

2 Answers

I'VE A YAMAHA PSR S700. The problem is with it's screen. Whenever i start playing, the screen fades and then it comes and it goes and vice versa. This occurs almost two - three days a week. There is no sound problem. What should i do?

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  • stevedon781 Jun 21, 2011

    Is it necessary to repair the backlight problem?

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Likely a connection to the backlight is being broken. Tap on the unoit and see if it pops back on. Illuminate screen with a flashlight and see if the characters can be seen when screen is faded. If they can, then the backlight is the problem... IF NOT then the display may be bad... This has been a problem and if you are under warranty, excersise it immediately... else replacement of the display is relatively expensive.

Posted on May 28, 2011

Testimonial: "THANK U VERY MUCH.......!"

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  • stevedon781 May 29, 2011

    YES.... THANK U VERY MUCH. IT IS A BACKLIGHT PROBLEM. THE CHARACTERS CAN BE SEEN WHEN A TORCH IS ILLUMINATED ON THE SCREEN.

  • Fred Yearian May 30, 2011

    It may be that the cable powering the backlight has come partially loose and the vibration makes it come and go. When opening the unit, be careful of the ribbon cables connecting between the two halves of the case.

  • stevedon781 Jun 21, 2011

    Is it necessary to repair the backlight problem?

  • Fred Yearian Jun 21, 2011

    There is no danger of damage with the backlight like this, but it would sure be annoying. Try tapping the unit when it has faded and see if it re-connects... gentle tapping, not with a hammer or fist... do it with a knuckle for instance.

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Am Kwofie from Accra Ghana:

I recently bought a Yamaha PSR S700 keyboard and it stated developing problem. Anytime time i switch it on the power comes and go off and on leaven the screen light on in the fade mode without seeing anything on the screen nor hearing sound unless you switch it off and on it again, and when it comes immediately you start playing it will do the same thing, the power adapter too is good so what may be the cause thanks?.

Posted on Jul 07, 2012

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The backlight is not shown as a replaceable item only as part of the LCD unit. There is a complication in replacing the screen as the original screen is no longer available and a replacement screen also now involves other modifications beyond the average user I would suggest.

Speak to your local Yamaha dealer for a price on the screen kit

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

some possibles
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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:
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I have a Yamaha PSR S700 keyboard. Whenever I play it, the OTS settings automatically gets changed and disabling all my other buttons on panel. Only if I select 'No' for the question displayed in...


It sounds like one of the OTS buttons is getting triggered accidentally. There may be a build up of residue behind the button. With the unit off, try rapidly pressing the OTS buttons, one at a time. This should help to move any debris which may be creating a false contact.

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http://elektrotanya.com/yamaha_psr-s500.pdf/download.html

Scroll down to "Get Manual" and click on it to download the manual (about 12Mb)

Yamaha support/parts contact
http://usa.yamaha.com/support/

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4. Try it with batteries. If that works, you need a new adapter.

http://www.ioffer.com/i/adaptor-cord-yamaha-psr-or700-s500-s700-s900-arranger-113553507

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