Yamaha YPG Keyboard Screen Display Problem!

Dec 28, 2010
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I fixed this now by Replacing the LCD
by: Mike H

I have a YPG-625. I suggest calling an authorized dealer is seeing how much they will charge you to replace you malfunctioning LCD with a new one. They get a bigger discount from Yamaha and it may actually be cheaper. If you want to do it yourself follow the below understanding I am not a qualified service tech just a do-it-yourselfer. There are a total of 114 screws (you will want to power screw driver fully charged) and 2 solder connections (you will need a soldering Iron and solder).

ALSO:

- DO NOT open the case unless you are aware of and comfortable with the fact that you could destroy your piano. You will need to solder 2 small connections (if you don't know how to solder go to youtube).

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

Steps to Replace the LCD:

1. I ordered a new LCD from Yamaha. $169 + 25%discount if you call and ask + shipping.

2. Remove from the stand if you have one (4 screws).
3. Lay the keyboard upside down on it's face (put on cloth or towel so no scratches).
4. Remove ALL 102 screws from the bottom of the chassis, including the 14 inside the speaker compartments
5. Carefully lift up on the bottom part of the case just enough to remove the speaker wire connector so you can completely remove the bottom case. Take care not to damage the speaker lines
6. LCD is mounted beneath main logic board.
7. Remove ALL the ribbon cables (notice how they are oriented and where they go, you will need to replace these latter) except the main one (top right corner since flipped on face and you are looking from the Top of the piano).
8. Remove the 4 screws from the main board.
9. Carefully lay the motherboard over to the right.
10. Remove the 4 screws to the LCD.
11. Remove the Soldered power wires from the LCD. To do this, look at the connector on the board were this wire connects. The top part of this plastice white connector lifts up slightly (don't pull to hard) then you can easily pull the wire out).
12. Unsolder this wire from the old LCD. Make sure you notice which wire is + and which is connected to -.
13. Solder this wire onto the NEW LCD. Make sure you connect the correct wire to + and the other to -. (See YouTube to solder correctly if you don't know)
14. Plug the new LCD power wires back into the white power connector on the board.
15. Replace 4 LCD Screws.
16. Replace Motherboard and all ribbon cables.
17. Replace 4 motherboard screws.
18. Replace speaker wire connection
19. Replace all 102 screws
20. Replace 4 screws on stand.

Yamaha YPG Keyboard Screen Display Problem!

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Yamaha YPG Keyboard Screen Display Problem!