Yamaha Portable Grand DGX - 660 Repair

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[@artjomeniko]

I'm having a problem with DGX-660 where a key sounds only 100% loud regardless of the pushing speed, in other words - no silent sound. There's some calculation of speed between two "switches" of one key from what i've read in the internet. So just watching videos for now in order to estimate if i can fix it myself or just give it away to a repairment...

[@mambrake]

Yeah I know that there are diodes on the key boards but I wouldn’t know why it’s at 100% volume. Hope you find the issue. I’m a rookie with these

[@bmmusic]

Thank you 👍 your video was very helpful.

[@mambrake]

You are welcome

[@nancyabelaye2445]

Hi , Nicole I have a Yamaha DGX-660 PORTABLE GRAND ...THE DISPLAY IS VERY BRIGHT AND YOU CAN HARDLY SEE THE SETTINGS OR WHAT IT SAYS!

[@mambrake]

Maybe you need to adjust the brightness?

[@nancyabelaye2445]

Thank You, I found that there is a Contrast Button. That my husband didn't turn the knob... right! So. When I checked it out , I noticed you have to pull the knob Straight Out towards Yourself and from there...turn the know Either L or R...Depends how much Contrast you see & makes it 🌞 Bright to see the Display! Thank You anyways for your Information.

[@mambrake]

@@nancyabelaye2445 Right…. There is a brightness button on the piano. I was playing around with it once before. That’s why I brought it up, that maybe you need to adjust your brightness

[@jollino]

I have an odd issue with the same keyboard: I get a buzzing sound from the right speaker on specific notes (A4 and G#4, and to a lesser degree A3). I think it's an issue with the grill itself, because pressing down on it with my hand prevents the buzzing from occurring. Your video is quite helpful about taking it apart, but I'm not completely sure how the speaker grills are actually held down: I can see some 'tabs' around the edges, but aren't there any screws for them?

[@mambrake]

I really didn’t look into the grill so I can’t give you accurate guidance.