Question about Yamaha PSR-E333 - 61 Key Portable Keyboard

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Fix the keys, some of them sometimes don't play or play to loud.

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Key B2 playing to loud, not touch responsive


What is your piano brand and type?
Damage to the contact rubber can cause note plays loudly or,
note does not plays at all.
It is caused by:
1. Carbon rubber contacts dirty / dusty (yellow arrow). Clean with a pencil eraser (or cloth). Gently rub it.

key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-0.jpg

2.
Contact rubber is torn (your case). If this happen,it can not be repaired or glue. So, you have to replace one octave.
The yellow arrow indicates the side that is often torn.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-1.jpg

Rubber side that is torn, usually not seen, unless we move / pressing gently on top (In the rubber contact position is not installed on the board.)
Examples of this picture was yamaha psr.
key-b2-playing-loud-not-touch-wy0wtjmd43l3of51yru11dct-4-3.jpg
.

Oct 14, 2015 | Music

1 Answer

YAMAHA PSR 9000 D NOTE VERY LOUD INTERMITANT


If you have any key note problems with your yamaha psr 9000 and need It repaired contact a qualified engineer at stephenhns5@gmail.com

Jan 28, 2013 | Yamaha Music

1 Answer

Disfunctioning f note. It plays extremely loudly.


If it is under warranty, may as well make use of it. In the long run it will be less headache for you.

It is something that should be repairable, although time consuming. as it is likely a stray bit of solder lodged where it should not be.

Feb 06, 2012 | Casio CS43 Stand for CDP 100

1 Answer

I have a hot spot VC, and the speaker still play, but they are very faint, and not loud at all. I checked all connections, and don't see any which are broken. Is it worth trying to repair, or should I...


Test the speaker itself. If the speaker is blown replace the speaker(s). If your has a volume control, I suspect the control may have blown. Test it with an ohmmeter. Inexpensive fix if it has blown.

Aug 26, 2011 | Galaxy Audio Standard HotSpot Monitor

2 Answers

Hi i got the korg pa50sd when i swith it on it shows me korg pa50sd boot loading files then this goes off, still the light on display is on but blank display with nothing on it ,. i was trying to find any...


NOT a fuse... thaat person knows nothing. There is something wrong for sure. Check if one of the buttons or keys MIGHT be stuck down (depressed). Sometimes the units check that all the control buttons are up and they don't really tell you why they fail to start. Beyond this a repair shop is in order.

Jul 11, 2011 | Korg PA50SD Pro 61 Key Keyboard Bundle

1 Answer

I'm using the Yamaha P-85 Digital piano. Unfortunately it has lately had some problems. When I'm playing to notes next to each other (especially e and f (mi & fa) or b flat and b (si & si...


In playing fast you have to make sure to release the note fully and let the key come up. These keys have TWO contacts that are used in the scheme to measure note velocity. If BOTH contacts don't open, the note will NOT re-fire. The second symptom you have written would be a characteristic if one of the disconnect diodes has shorted. These diodes direct the strobe signals that scan the matrix of key contacts to avoid other octaves responding when multiple keys are depressed including those in other octaves. Servicing of the unit is required. It is unlikely you have the tools to DIY this problem. ONE THING to try is to tip the unit and gently tap it to see if some debris MIGHT have fallen in that may be shorting some of the matrix connections.

Apr 25, 2011 | Yamaha P85 88Key Portable Digital Piano

1 Answer

I have static in my 8/10 mesa cabinet. Its only in the second bank of speakers. The speakers seem to work and sound as good as the others in the cabinet but there is a weird light static sound that comes...


Sometimes there is a resonance with materials that are a part of the case or inside the cabinet that cause this. If the level is very low, don''t worry about it. I have even seen the logo on a speaker grill causing the noise... also debris inside or behind the grille...

Mar 25, 2011 | Mesa Boogie Mesa/Boogie 2x10 Vintage...

1 Answer

What can I do? the E & E flat keys work sometimes. Also when the E flat does play, this key is louder than the rest. Thanks! in advance


The key contacts are dirty. There are two per key which is to measure the velocity. That is why the loudness varies because that key is firing quicker.

Disassemble and clean the contacts. They are conductive rubber.

Use ONLY 99% isoprophyl alcohol and Q tips to clean each rubber "pill" and the circuit board traces they contact.

Be careful of the ribbon cables when disassembling.

Jul 25, 2010 | Casio Ctk 496 Electronic Keyboard with 61...

1 Answer

A few of the flat key get stuck on the right hand. On the lower left a few the sound are loud no matter how soft you try a play. Can this be fixed?


I am sure it can be fixed. Who knows what brand or type of instrument this is...

The stuck keys are probably mechanical sticking. The loud keys are probably dirty key contacts that sense velocity.

Take unit in for servicing.

Jan 25, 2010 | Music

1 Answer

Psr e303 yamaha double sounds


Do you cover the keyboard when not in use as small particles of dust can make their way in between the keys?

You can try blowing any obstruction out with a can of compressed air, may solve your problem.

As I'm not familiar with this Model, does the keyboard have 'touch response' on board? If so there will probably be a 'Contact' strip made out of tubular rubber under the keys and this can sometimes 'burst' especially on a certain key that is played most of the time. For example if you play mostly in the key of 'G' or keys that use that note....

Hope you find this helpful......

Dec 28, 2008 | Yamaha Full-Size Keyboard

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