Question about Yamaha Full-Size Keyboard
I have a Portable Grand DGX-500 that turns on - selections available but no sound. Display working-Disk drive working - no volume
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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.
Posted on May 03, 2010
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
Tips for a great answer:
Apr 25, 2017 | Yamaha Music
Sep 24, 2015 | Yamaha DGX-230 Portable Grand Piano
Sep 01, 2015 | Yamaha Music
Mar 10, 2015 | Yamaha Music
Jul 20, 2014 | Yamaha DGX-230 Portable Grand Piano
Mar 12, 2014 | Yamaha Music
May 19, 2017 | Yamaha DGX 640 Keyboard Arranger
Mar 20, 2012 | Yamaha Music
Apr 13, 2011 | Yamaha Dgx203 76Key Portable Keyboard
Jun 20, 2014 | Yamaha Full-Size Keyboard
105 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: