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Why is there blank blue screen on yamaha ypg 535??

The item was new in box and still smell the new electronic smell when i turn it on there was no lights and no sound but the blue loading screen, never showed the yamaha logo when booting. I figured it was a defect by the manufacture? I mean it was a dead one! i am returning it for another one, it seems these model are having a lot of defect within past 3 years.

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: Yamaha YPG625 screen shows only vertical lines

I brought the keyboard into a local service technician. He told me that he had to remove about 50 screws but the solution was simple. He unplugged and reconnected the ribbon connector. It apparently was not making good contact.


Posted on Oct 21, 2008

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  • 5603 Answers

SOURCE: YamahaDGX-220 YPG-225

Do a factory reset. First try pressing the + and - buttons simultaneously.

Look in your user manual for a complete factory reset and do that.

Posted on Jul 30, 2009

  • 1138 Answers

SOURCE: Yamaha CVP 309-When I power it up, red power light comes on, but

You have to remember that the voltages coming out of the power transformer are A.C. and the voltages used by the devices in the keyboard are D.C. Check for voltage rectifier I.C.s between the transformer and the rtest of the circuits. They should look like squares with 3 pins coming out of the bottom of them and metal backs that protrude above the top of the black squares. Use a volt ohm meter on direct current range and clip the black lead to a circuit ground such as a ground on an output jack. Touch each pin one at a time taking note of the voltage. If you find one that has the same voltage on all 3 pins it is probably shorted. I think the voltage should be about 12volts direct current positive or negative depending on the circuit. Each one will have a code that you can cross reference on the net to find the pinouts and specs. The same thing goes for all the I.C.s If you can find the pinouts for any that you suspect look for the power supply pins and check what the voltage is. Some will have two supplies, one negative and the other positive. If you find an I.C. with power at all pins or ones that should have no power only signal then it is likely shorted. Go slowly and don't bridge two pins at once by accident and you might be able to find the problem without the schematic or a service manual. There is a memory battery (CR2032) that power the memory that might be dead but that should only affect the programmed sounds not the LED or the amp chip. Hope this helps. Do not measure A.C. with the D.C. range or you'll burn out your meter. Use safety precautions with a live device.

Posted on Aug 11, 2009

  • 1 Answer

SOURCE: What needs to be removed from my Yamaha YPG-625 to

DO NOT open the case unless you are aware of and comfortable with the fact that you could _destroy_ your piano. Easily.

Observe appropriate anti-static precautions. It should go without saying that this is an electronic repair, and dangerous voltages may exist inside the case.

1. Remove the stand if you have one
2. Lay the keyboard upside down (bottom up) on workbench
3. Remove all 90+ screws from the bottom of the chassis, including the 14 inside the speaker compartments
4. Carefully lift up on the bottom case part, taking not to damage the speaker lines
5. Unplug speaker connector and set lower case aside
6. LCD is mounted beneath main logic board
9in the center), my problem lies elsewhere, but competent and cautious service technique should lead you where you need. I would strongly recommend replacing the LCD assembly module, unless you are experienced in LCD repair.

Posted on Nov 08, 2009

  • 5603 Answers

SOURCE: I am not happy at all with sound quality of Yamaha

The small speakers LIMIT the quality... it sounds much better with an external amp.

Posted on Jun 27, 2010

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How do I download the USB driver for my Yamaha YPG-525 Portable Grand, so that it will work with Windows 10.


Windows 10 appears not to be supported on YPG525

you could try :

http://faq.yamaha.com/us/en/article/index/id/4181/?search_query=Ypg-525%20windows%207₪t_page_id=1

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There is a contrast control knob on the rear panel of the instrument.

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How do I adjust the screen contrast on this keyboard?


The contrast control knob is on the rear panel of the instrument.

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Blue LCD screen


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!

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Yamaha ypg 625 screen lights up, but no data


display screen might have very tightly screwd up bit loosen try for all of them

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YPG535 keyboard is touch sensitive though one key suddenly makes a hammering (hard) sound when touching softly (seems to have lost its touch sensitivity). Does anyone have any insights on this issue?


Yep! Each key has two contacts, These are often conductive rubber pills that are pressed by the keys onto circuit traces completing the circuit. One of the contacts makes before the other so the procesor can measure the time between the closure of the two contacts. When one of the contacts doesn't make, the velocity is sensed as MAXIMUM so it HAMMERS !!!

Your problem is a contact isn't making... Your probllem to fix it is to ACCESS the contacts to clean them. Clean the contacts with ONLY 99% isoprophyl alcohol and Q tips.

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I have a Yamaha YPG-525. Everything is working except the LCD screen. It turns on, but doesn't display anything... I had this problem once before when I didn't use the keyboard for a while, but it ended...


I have the same problem, mine is Yamaha YPG-625. This seems to be a common problem with Yamaha keyboards. I opened the 100 screws in the back, separated the main board from the display unit which is under it if you flip the keyboard upside down, to verify if there was any loose wires, nothing of the sort.
It is so frustrating, the keyboard is working fine but it is hard to navigate because the display is not functioning. Yamaha should do a recall as this is obviously something wrong with the keyboard happenning to a lot of people

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DGX620 blank blue screen and "hum" when I turn it on


Try the contrast control. My DGX505 suddenly had a blank blue screen, I found that mygrand daughter had been fiddling with knobs and switches and discovered one I hadn'y noticed. On the 505 ot is located on the rear panel right next to the USB port. A slight tweaking of the lnob and all was restored. Heart attack avoided. And I learned something from a 4-year old.
Hope that is all it takes for you too. Good luck!

Aug 14, 2009 | Yamaha Full-Size Keyboard

1 Answer

What needs to be removed from my Yamaha YPG-625 to


DO NOT open the case unless you are aware of and comfortable with the fact that you could _destroy_ your piano. Easily.

Observe appropriate anti-static precautions. It should go without saying that this is an electronic repair, and dangerous voltages may exist inside the case.

1. Remove the stand if you have one
2. Lay the keyboard upside down (bottom up) on workbench
3. Remove all 90+ screws from the bottom of the chassis, including the 14 inside the speaker compartments
4. Carefully lift up on the bottom case part, taking not to damage the speaker lines
5. Unplug speaker connector and set lower case aside
6. LCD is mounted beneath main logic board
9in the center), my problem lies elsewhere, but competent and cautious service technique should lead you where you need. I would strongly recommend replacing the LCD assembly module, unless you are experienced in LCD repair.

Jul 06, 2009 | Yamaha Full-Size Keyboard

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