How to Fix Unresponsive Keys for an Optimus Concertmate 980

Introduction

Over time, in older pianos like the Digital Piano Optimus Concertmate 980, dust and dirt get under the keys, removing the function of the key.

The issue comes when you can't clean the dust off without disassembling the piano. Although very frustrating, this is very common with older devices and comes with a very simple fix.

What you need

Step 1 How to Fix Unresponsive Keys for an Optimus Concertmate 980

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Test all keys to identify the ones that are not functional.

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Step 2

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Flip the piano to its backside.
Remove all the screws on the back of the piano using a Phillips #0 screwdriver.

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Step 3

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Remove the back metal plate.
Flip the piano to its front before the next step.

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Step 4

Lift up the top panel from the back.
The panel won't come off completely due to the cables connected.

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Step 5

Reattach any loose cables.
Clean any dust from the top of the keys with a vacuum or cotton swab.

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Step 6

Using a Phillips #00 screwdriver, remove all the screws attached to the top of the keys.

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Step 7

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Remove the white keys by pulling them from the top and sliding them down.
To remove the black keys, pull on the keys first to pull off, then remove the keys entirely.

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