Where, exactly, is the headphone jack on the dgx 640? I cannot find it anytwhere.

ask yamaha this, direct to them or read the manual firsts. 2010 made.
lost the manual ? did you?????
any app you run most be from maker yamaha for w10.
Yamaha DGX-640 88-Key Portable Digital Grand Piano with Weight-Graded Hammer Action.all there is , is here
yam

https://usa.yamaha.com/support/updates/index.html?c=digital_pianos&k=640

https://usa.yamaha.com/files/download/other_assets/2/314552/dgx640_en_om_a0.pdf

i guess you talking about what page 15 states.
then page 97 how to do it>?

what it can do is all there song file wise.

it shows w7 max.
but some apps w7 sure can be loaded to w10 or drivers
using windows 10
w7 compatibility mode as MS tells you.
seen here.
windows 10 32bit or 64 I see this too


https://usa.yamaha.com/support/updates/index.html?c=digital_pianos&k=DGX

try these?

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

Hopefully the attached will let you remove the base correctly.

Message me if you need more information.

Check that the local control is ON

It is set via the function switch

you need a midi cable

I had the exact problem, mine was a YPG 535 brand new in box I put everything together with stand and FC4 pedal. When i got ready to play just a blue screen and none of the red lights came on and no sound, I notice when i was messing with the on and standby button hopeing it would work the speakers would make a popping noise I personly thought it was a manufacturing defect.....i'm sending it back to have it replace. I never had problems with yamaha products but seems like more and more defects are happing with newer portable grand series!

There is a small turning button on the back of the keyboard to change the screen tone and brightness,happend to me and this fixed it,i thought mine was broken too,till i spotted it

The function setting is for the PANEL sustain (Page 68 of your manual)

The other method of sustain is by footswitch or pedal option. See page 13.

If you use a footswitch, it needs to be a normally open contact type. If you plug a Roland type in, it is opposite polarity and will sustain UNLESS the pedal is pressed. Make sure nothing else is plugged in the sustain jack... headphones that are inadvertently plugged in there would sustain.

From Yamaha DGX 200 Manual

• Q-There is no sound even when the keyboard is played or when a song is being played back.
• A-Check that nothing is connected to the PHONES/OUTPUT jack on the rear panel. When a set of headphones is plugged into this jack, no sound is output. Check the Local Control on/off. (See page 69.)