Question about Yamaha DGX 640 Keyboard Arranger
The brightness of the LCD display seems to have dimmed making it impossible for me to read the screen.
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Posted on Jan 02, 2017
I have the same Problem since yesterday my granddoughter hit the keyboard too heavy. I have opened it (many screws...) but could not find any obvious reason. Nothing like a loose connector.
Posted on Jul 23, 2010
SOURCE: A bought an Yamaha DGX
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.
Posted on Mar 07, 2011
It doesn't use a USB to MIDI adapter (such as the UX-16.) It has an onboard MIDI controller and uses a standard USB A-B cable. You just need to install the driver from the CD-ROM or here, and plug it in. You can get the manual from the same page or here. Setup is on page 99.
Posted on Oct 22, 2012
SOURCE: yamaha dgx-640 display
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
Posted on Feb 13, 2013
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