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Related Electronic Musical Instruments Questions
Yamaha DGX-640 Portable Grand Piano - no sound from right
Yamaha DGX-640 Portable Grand Piano - no sound from right speaker, tried with headphones and also no sound from the right (right channel seems to be out). Is this something that a reset might help? … read more
Expert
Expert
I have a Yamaha DGX-640 piano. I took it out of storage and
I have a Yamaha DGX-640 piano. I took it out of storage and moved it from LA to Oregon. I plugged it in and can't get any sound out of it. I called Yamaha technical and they walked through some questi… read more
Ron Winston
Ron Winston
3,116 satisfied customers
I have a Yamaha portable grand DGX 640, the power comes on,
I have a Yamaha portable grand DGX 640, the power comes on , but I have no sound! Can you help me? … read more
Mian-Wisal Ahmad
Mian-Wisal Ahmad
Field Engineer
MS Electrical Engineering
326 satisfied customers
My girlfriend is very emotionally attatched to her yamaha
hi, my girlfriend is very emotionally attatched to her yamaha dgx-640 keyboard. today she was playing a song and it just stopped making all sound. we tried factory resetting it and messing with the he… read more
Brian Atkins
Brian Atkins
Associate of Applied Science, Sound Technology
63 satisfied customers
Yamaha dgx-640. when i turn in on the keys play no sound.
yamaha dgx-640. when i turn in on the keys play no sound. I've taken the troubleshooting steps in the manual but still no sound either in headphone or keys … read more
Expert
Expert
I have a DGX-640 that turns on but has no sound. About a
Hi, I have a DGX-640 that turns on but has no sound … read more
Expert
Expert
I have a yamaha portable grand dgx-640 - about 8 yrs old.
I have a yamaha portable grand dgx-640 - about 8 yrs old. sat down to play it today and the keys are playing multiple notes - not playing right at all. … read more
Ron Winston
Ron Winston
3,116 satisfied customers
It turns on but there is no sound. Yesterday. I hadn't used
yesterday. I hadn't used it in about a year but the sound was fine then. … read more
Joseph Newman
Joseph Newman
Computer Science
289 satisfied customers
Mysterios. natural ... Example: Key of F major IV-V-I
Mysterios. B natural ... Example: Key of F major IV-V-I progression. On the resolving tonic chord a blatant B natural appears … read more
Ron Winston
Ron Winston
3,116 satisfied customers
Would like to know if there is a setting on the Yamaha
Would like to know if there is a setting on the Yamaha dgx-640 to change the key (from the key of d to x for example). … read more
Ron Winston
Ron Winston
3,116 satisfied customers
My Yamaha DGX 630, no sound while play the keyboard, When I
My Yamaha DGX 630, no sound while play the keyboard … read more
Louie
Louie
Shop Owner
12,416 satisfied customers
Trying to get my yamaha glx 640 to record on pc. 1 day. It
it works on the keyboard. it connects with the pc. but it does not recognize. I have downloaded um314x64 … read more
Mian-Wisal Ahmad
Mian-Wisal Ahmad
Field Engineer
MS Electrical Engineering
326 satisfied customers
Can you transpose on the Yamaha dgx 640? How? Yamaha dgx
Can you transpose on the Yamaha dgx 640? How? JA: What Yamaha model do you have? Customer: Yamaha dgx 640 JA: How long has this been going on with your Yamaha instrument? What have you tried so far? C… read more
Russell H.
Russell H.
Computer/Electronics Consultant
Vocational, Technical or Trade Scho
12,147 satisfied customers
My Yamaha DGX-640 has not been used in about 2 years while I
Hi, my Yamaha DGX-640 has not been used in about 2 years while I have been out of the country. Now there is no sound when I turn it on. Is this something that can be fixed? … read more
Ron Winston
Ron Winston
3,116 satisfied customers
Our nearby nursing home owns a Yamaha Portable Grand,
Our nearby nursing home owns a Yamaha Portable Grand, DGX-640. It works perfectly, except the sustain pedal does not work. I tried another pedal that I know does work, and still no sustain. I have the… read more
Ron Winston
Ron Winston
3,116 satisfied customers
ON MY DGX 640 THE FLAT AND E KEYS ABOVE MIDDLE C ARE SILENT.
ON MY DGX 640 THE B FLAT AND E KEYS ABOVE MIDDLE C ARE SILENT. … read more
Russell H.
Russell H.
Computer/Electronics Consultant
Vocational, Technical or Trade Scho
12,147 satisfied customers
Display is fine but there is no sound. Few minutes ago. No
Display is fine but there is no sound JA: When did this audio problem start with your instrument? Customer: Few minutes ago JA: Is the audio working with headphones or external speakers? Customer: No … read more
Aric
Aric
Electronic Musical Instrument Technician
Run A/V and repair business for over
199 satisfied customers
I have a Yamaha DGX-640 Digital Grand. The latest time I plugged
I have a Yamaha DGX-640 Digital Grand. The latest time I plugged it in and turned it on, the screen is blue and the display (words, settings, etc) is very faint...the blue is very bright. Everything s… read more
MusicTech14
MusicTech14
Bachelor's Degree
393 satisfied customers
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Meet the Experts:

Steve G.

Steve G.

Engineer

87 satisfied customers

I have played electronic keyboards for 40 years.

Ron Winston

Ron Winston

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Rusty

Rusty

Music Professional

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Sound Engineer, Electrical Issues, Tone Consulting

Aric

Aric

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15+ years in the field. Owner of AV Installation, OEM and Repair company

Carl L

Carl L

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momentouswater

momentouswater

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ParkerA107

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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