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My Yamaha portable Grand DGX 230 (76 keys) needs a circuit board. Its the circuit where the keys make the contact to give the sound. I understand the diodes on the circuit went bad. Is that circuit board available, and what is the cost?

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Posted on Jan 02, 2017

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SOURCE: No sound when piano keys are pushed on my Yamaha dgx-620

I'm sorry but it sounds like you will have to have it repaired professionally.

Posted on Apr 28, 2009

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SOURCE: My new Yamaha DGX-230 keyboard

One of the key scanning matrix wires is defective someplace between the key contaact and the receiving circuit. Since this is brand new, the costs should be handled under warranty since you say the keyboard is new. I have downloaded the service manual:

http://elektrotanya.com/yamaha_dgx-230_ypg-235.pdf/download.html

Scroll down to "Get Manual" and click on it to download. On page 61 is the keyboard contact diagram. I woudl appear that if a matrix line is bad, the the D# notes should ALSO be bad.
Since this is new, I would not attempt to repair it. Call the distributor regarding the return oor repair... they MAY have an authorized repair facility. If the D# notes are OK, then the problem is deep in the unit... This is ALL based on the symptoms you have given..

Posted on Apr 30, 2011

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SOURCE: as i play notes on

Check if you MIGHT be in a "guide" or learning mode. Some Yamaha synths have a mode that will play and then wait for you to hit the right key before moving on. If this is not the problem, a fix is not DIY and will require repair. I assume you are NOT using MIDI as in that case it is called "dreaded MIDI drone" and is due to data looping back into the unit which is an external fault.

Posted on Aug 18, 2011

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1 Answer

Where can I get a manual for portable grand D6X640 Yamaha piano


Do you mean the DGX-640? To my knowledge, Yamaha doesn't have a D6X line of keyboards. Most of Yamaha's manuals are available from their support page: http://download.yamaha.com/top/?site=usa.yamaha.com&language=en . The DGX-640 support page is http://download.yamaha.com/search/product/?language=en&site=usa.yamaha.com&category_id=16084&product_id=1056822 . Scroll down to find the owner's manual in various languages and other documents. Yamaha provides javascript links to the manuals on the site; these do not resolve to specific direct links in my browser history.

I hope this helps.

Cindy Wells

Apr 25, 2017 | Yamaha Music

1 Answer

3 key notes not working and can't write my savings to the banks..


Hi, You can reset your whole keyboard by holding down the top C ( highest key ) whilst turning on.

This is unlikely to clear 3 non working keys. My guess is that the contacts under the rubber switches have worn or dust is under the contacts. You could try cleaning first under the rubber contacts if this fails replace the contacts ( 1 per octave ) Part WF212202 contact me if you need more information

Pictures attached may help 0482dd26-e9cb-4b61-b47e-f97d90aa782c.jpg 42e5c956-fedc-40b9-ae04-8bf3e98b22a2.jpg

Mar 28, 2014 | Yamaha DGX-640 Portable Grand Piano...

1 Answer

I dont have a players' manual and i don't know how to operate the yamaha portable grand DGX-200


Here is a link to the manual. http://www2.yamaha.co.jp/manual/pdf/emi/english/port/DGX200E.pdf

Mar 12, 2014 | Yamaha Music

1 Answer

I have a new DGX. My problem is when I want to add a dual voice to the piano. I press the portable grand button then hold the dual button till the violin voice appears then select the voice I want and...


HI, Let me answer the question.

1) Select the DUAL VOICE (not portable grand ) button and hold for longer than 1 second.

The choose voices required.

If you press the Portable Grand button this resets the keyboard top a piano.

I hope this helps

Dan
640-wz3v4rllbsiyd0mxwjouzysu-5-0.jpg

May 19, 2017 | Yamaha DGX 640 Keyboard Arranger

1 Answer

Dgx 230 dc in connector bad


This type of keyboard is well know for the power socket breaking away from the main PCB. You will need to unscrew lots of screws to reveal the circuit board with the power socket on. If you look closely at the solder side you will probably see that the track that the socket is soldered to has broken. Simply link the solder joint to the circuit further along the track by bridging between socket and next point along the track. You may need to replace the socket if it has become damaged. If you can use a soldering iron it is fairly easy but if in doubt contact a repairer.


If you need a socket Google :

Yamaha PSR power socket ( KPA3 / PA130UK / EPA3 ) (LB30226R)


Yamaha PSR power socket ( KPA3 / PA130UK / EPA3 ) (LB30226R)

Jan 25, 2013 | Yamaha Keyboard w/ 76 Graded Action Piano...

1 Answer

DGX620


If the backlight is on and just half of the display data is there, it is probable the conductive strip has come away from the display or the contact portion of the board where the conductor strip lays on the circuit board.

If it is under warranty, contact Yamaha. If it not under warranty, you can try to fix it, but once adhesive lets go, it is diffeicult to get them to premanently readhere. A repair shop that is Yamaha authorized is able to get the New parts from Yamaha that fit.

Apr 10, 2012 | Yamaha 88 Key Portable Grand w/stand

1 Answer

The display screen for my DGX 500 is blinking on and off and is unresponsive.


Do you mean,"The HOUSE power went out" or, "The keyboard power went out"?

Mar 20, 2012 | Yamaha Music

1 Answer

Where can i find windows 7 x 64 drivers please help mee !!!


Your Yamaha DGX 203 Portable Keyboard - USB-MIDI Driver Version 1.2.2 ie. for OS Win9x/ME.

Yahama site does not have the Win7(x64) Drivers ie. USB-MIDI for your Keyboard Model DGX-203

But you can try the USB-MIDI Driver Version 3.1.0 for Windows(R) 7/Vista/XP 64bit for Model DGX-520 @ http://usa.yamaha.com/products/musical-instruments/keyboards/digitalkeyboards/dgx_series/dgx-520/?mode=model

I can't assured you that it will works on your system. Since your Keyboard is no longer in production, I doubt Yahama will provide you with the official USB-MIDI drivers for your Keyboard even you requested for it.

I guess this is an option you can try and hope it works & good luck.

Regards.

Apr 13, 2011 | Yamaha Dgx203 76Key Portable Keyboard

2 Answers

Certain keys do not make a sound..


The wire from pin 1 or 7 of CN1 on the GHL88L (left end) circuit board is open where it goes to the middle circuit board. This could be a bad cable, improperly seated cable connector, or a crack in the circuit board(s) connecting to these wires. These are the common matrix wires associated with only the C# and G keys for the left 1/3 of the keys. If more than 1/3 is dead, then the problem is likely on the middle board GHL88M that connects to the mating cable to the CN1 connector.

There are two wires dedicated to the keys for the two contacts that are used to measure velocity of the key strokes. There is a mechanical position between closing the contacts and the time is measured by the processor as velocity.

If you are the least bit worried about working on electronics you best have a service person do the repair. The keyboard has to be lifted out after removing the top and disconnecting other cables.

May 03, 2010 | Yamaha Full-Size Keyboard

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