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Yamaha keyboards not geting any power yet tried the leads and there fine any other suggestions of what might be wrong with it many thanks

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Tyr to short the cmos battery.....

Posted on Apr 08, 2008


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Pss680 keyboard ,we turn the button on and no power.we have tried it with batteries and the adaptor and still no power,wondering if you are able to offer some advice.

If it was just no working on power adaptor I would have suggested the socket was faulty. However as not working on batteries I would suggest it is the on/off switch.

From what I can remember the PSS680 used a slide on/off switch which when you look inside has a metal piece that makes the circuit on the PCB track. Over a period of time this can wear or get clogged up with dust etc.

The other thing you could check is, do you think a wrong adaptor might have been used. Check the polarity against the picture shown on the back of the keyboard. If it is wrong you may have blown some of the power diodes.

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Yamaha DSR2000: It plays fine for a while, and then the display fades and there is an enormous squeal until turned off and plugged in again.

I would normally suggest a power supply issue. Does the display flicker if you move the power plug, if so this is a common fault, replace socket.
If it is not power related then as it works, charges up, squeal then suggests possibly a capacitor charging up and discharging.

Aug 14, 2015 | Yamaha Portable Keyboard

1 Answer

My yamaha PSR-275 keyboard wont turn on

If the keyboard came with a setup disc try to install it using a friend's keyboard. Keyboard are very inexpensive I suggest for you to get another one.

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Try turning the I Mac of and on when you do refresh the list try that it should work

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I am not geting a spark on my yamaha cygnus, there

check to see if the magnito has come loose, although you would hear it if it was, maybe the points need replacing

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Try getting into the configuration menu of the MP3 player and adjust the output controls for external sounds to me like it might be too high and/or the wrong output decoding.

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1 Answer

Yamaha PSR-280 : AC power instead of DC power

An answer, but likely not a solution. I believe all Yamaha PSR series keyboards use the same 12 VDC adaptor, so I looked at the electrical schematic for another model I have. There seems to be no fuse on the power input. There are two components shown on the positive and negative wires off the power socket, but the symbols do not look like anything I have seen for fuses - they may be resistors. Power goes directly to a 5 VDC voltage regulator, which powers all of the solid state componenents. Too much voltage of the wrong type could have easily ruined many of the sensitive components.

Your only hope is to check the power socket area for the possibility of having fuses. My drawing shows the power socket, voltage regulator, and audio power amplifier being on one circuit board. That may not actually be the way it is in your model.

Good luck!
(your English is fine)

Feb 23, 2009 | Yamaha Portable Keyboard with 61...

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Yamaha v50 keyboard won't boot up

The 2013 button battery must be replaced to boot up. You should find or make a battery holder with two leads to replace the soldered in battery.

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Yamaha Keyboard Microphone Not Working

Hi Simon. Has the cable to your Mike been trapped under the stand, trodden on etc. Could be a faulty plug or even Mike/switch. Did the Mike ever crackle under use?

Have you another Mike and lead to try?

Sorry for the obvious questions but I have seen this happen before and it was a faulty lead...

Dec 18, 2008 | Yamaha Full-Size Keyboard

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