Trystan Casey
If your electric keyboard is broken, you may be able to repair it yourself and avoid having to buy a new one. This is a guide on how to diagnose and repair your electric keyboard. Firstly, you should inspect your keyboard for any signs of damage, such as cracks, dents, or burns. If there is any damage, do not test the keyboard as it could be a safety hazard. If there is no damage, you can proceed to test the keyboard by plugging it into a USB port and pressing the keys one by one to see if they respond. If the keyboard is not working, there may be debris under the keycaps, a poor electrical connection, or a broken switch. You can try to fix the keyboard by cleaning it with alcohol and canned air, or replacing the batteries if it is wireless. If you need to open up the keyboard, remember to take pictures during disassembly to aid with reassembly.
How to Recover an Electric Keyboard
| Characteristics | Values |
|---|---|
| Common issues | Keys not working, liquid damage, dirt and grime, corrosion, electrical damage |
| Tools | Phillips screwdriver, Allen/Torx driver, Ohm meter or multimeter, computer, on-screen keyboard, wire, conductive pen, canned air, contact cleaner, soft brush, damp cloth, cotton swab, rubbing alcohol |
| Steps | 1. Diagnose the issue. 2. Disassemble the keyboard. 3. Clean the keyboard with canned air, contact cleaner, or a damp cloth. 4. Replace any broken parts. 5. Reassemble the keyboard. |
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What You'll Learn
Diagnose the problem
Before attempting to repair your electric keyboard, it is important to diagnose the problem. Firstly, check for any visible signs of damage, such as cracks, dents, or burns. If there is visible damage, it may be unsafe to use the keyboard and you should consider consulting a professional repair service.
If there is no visible damage, you can proceed to test the keyboard. If it is a USB keyboard, plug it into an available USB port on your computer. If it is a wireless keyboard, ensure it is turned on and connected to your computer via Bluetooth. Bring up the on-screen keyboard on your computer to test the keys on the electric keyboard. Start from any corner and press one key at a time, noting the response on the on-screen keyboard. If a key is unresponsive, note it down and repeat for all keys. A pattern of unresponsive keys may indicate a failure in the keyboard matrix.
If you are experiencing issues with a mechanical keyboard, there are several potential causes. Firstly, check for a bad connection to the computer, a broken or stuck switch, debris under the keycap, or poor/broken electrical connections. Try unplugging and plugging the keyboard back in, or replacing the batteries if it is wireless. If the keyboard is dirty or sticky, clean it using canned air, or a mixture of denture tablets and warm water to remove stubborn grime.
If the keyboard is old, it may be dusty and corroded due to humidity. In this case, dust the keyboard thoroughly before attempting to turn it on or remove any glue. You can also use a soft brush or cotton swab dipped in rubbing alcohol to remove dust, debris, and stubborn stains. Allow the keyboard to air dry completely before reassembling and testing the keys again.
By following these steps, you can diagnose the problem with your electric keyboard and determine the appropriate repair or maintenance action to take.
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Disassemble the keyboard
Disassembling the keyboard is a delicate process that requires patience and precision. Here is a step-by-step guide to help you through the process:
Step 1: Prepare the Workspace
Before beginning, ensure you have a clean and organised workspace. Gather all the necessary tools, such as screwdrivers, and have them readily available. Place the keyboard in a stable position, with easy access to all sides.
Step 2: Initial Inspection
Perform a visual inspection of the keyboard to identify any signs of physical damage, such as cracks, dents, or burns. If there are any safety hazards, it is important to address them before proceeding. Additionally, give the keyboard a good dusting to remove any built-up dust or debris, especially if it has been in storage for a long period.
Step 3: Disconnect and Remove Batteries
Make sure the keyboard is unplugged and powered off. If it is a wireless keyboard, remove the batteries to ensure there is no power running through the device during the disassembly process. This is an important safety precaution to avoid any potential electrical hazards.
Step 4: Remove External Components
Start by removing any external components that are easily accessible. This may include items such as the wrist rest, adjustable feet, or decorative panels. Gently pry them off with a tool that will not leave marks, such as a plastic spudger. Place the removed components in a safe location, keeping them organised and separate from the main keyboard assembly.
Step 5: Unscrew the Outer Case
Locate the screws holding the outer case together and carefully unscrew them using the appropriate screwdriver. Be mindful that some screws may be longer than others, so it's important to keep track of their original positions to ensure proper reassembly. Place the screws in a container to avoid misplacing them. Gently lift off the top cover of the keyboard once all the screws are removed.
Step 6: Access the Internal Components
With the outer case removed, you will now have access to the internal components of the keyboard. Proceed with caution, as the internal layout may vary depending on the keyboard model. Identify the different components, such as the circuit board, ribbon cables, and key switches. Understand the purpose and function of each component to better navigate the disassembly process.
Step 7: Disconnect Ribbon Cables
Locate the ribbon cables that connect the keyboard assembly to the circuit board. Gently pull on the tabs or connectors to disconnect the ribbons, being careful not to damage them. Some cables may have latches that need to be opened before slipping the ribbon out. Take note of how the cables are positioned for proper reassembly.
Step 8: Remove the Encoder Board
Identify the encoder board, which is responsible for interpreting key presses and sending signals to the computer. It is usually located beneath the keyboard assembly. Remove any screws holding the encoder board in place and carefully lift it out of the keyboard. Again, make note of the screw positions and cable connections for easier reassembly.
Remember to take your time during the disassembly process and pay attention to the placement and orientation of each component. Taking pictures at each step can be helpful for reference when reassembling the keyboard.
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Clean the keyboard
To clean the keyboard of an electric piano, it is important to use as few products as possible to avoid damaging the instrument. Firstly, give the piano a light dusting using a feather duster to brush off larger bits of dust. Going straight in with a cloth may cause some of the biggest dust particles to become lodged in the keys.
Then, use a soft microfiber cloth – slightly dampened with water, or with a very small amount of liquid hand soap or dishwashing liquid – to wipe down each key. Wipe each key 2-3 times in one direction, from the inner keyboard out to the edge. Use a second dry cloth to dry each key, again going from the inner keyboard out to the edge.
Avoid using any cleaning products that contain alcohol, as this can remove any protective coatings or finishes on the keys and degrade the plastic.
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Replace the batteries
If your keyboard is a wireless mechanical model that connects via Bluetooth, the connection may be dropping intermittently due to battery problems. Try inserting a fresh pair of batteries to see if that helps. First, unplug your keyboard and remove the batteries. Take the keyboard to a well-ventilated area and remove the keycaps. You can then clean the keyboard with canned air or a contact cleaner.
If you choose to use a contact cleaner, insert the nozzle or straw into the stem of the key switch and apply one or two squirts. Work the switch stem up and down and side to side, then let the contact cleaner dry thoroughly before replacing the keycaps and checking if the key functions. Be sure to use a contact cleaner designed for this purpose, as some may damage your keycaps.
If you opt to clean the keyboard with canned air, blow between the keycaps. If that doesn't work, remove the keycaps and blow off the keyboard. You can also blow out the unresponsive switch by prying the keycap off and holding the keyboard upside down.
Once you have cleaned the keyboard, insert a fresh pair of batteries.
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Test the keys
Before you start testing the keys on your keyboard, it's important to do a visual inspection. Look for any signs of damage to the device, such as cracks, dents, or burns. If you see any damage, it's best not to test the device, as it could be a safety hazard. If everything looks okay, you can proceed with the following steps to test the keys:
First, you'll need to diagnose the keyboard to find out what's wrong with it. On a Mac, enable and bring up the Keyboard Viewer by opening the International preferences pane located in System Preferences under the Apple menu. Place a checkmark next to Keyboard Viewer, then close the preferences pane. Now, select the Keyboard Viewer from the Flag menu. For a Windows machine, go to the Start menu, then go to All Programs > Accessories > Accessibility and select the On-Screen Keyboard.
Next, plug the keyboard into an available USB port. It's okay to leave another keyboard attached as the computer can see both simultaneously. To prevent entering erroneous data into an important document, open a new text file in a text editor.
Starting from any corner, begin pressing one key at a time and note that the same key displays grey on the screen keyboard. Continue testing every key and make a note of those that don't respond. You may notice a pattern among the keys that aren't working, which could indicate a failure in the keyboard matrix.
If you have a mechanical keyboard, you can try cleaning it. Remove the keycaps and blow off the keyboard with canned air. You can also try using contact cleaner, but make sure it's designed for this purpose. Inspect the solder joints, as these may be broken on one of the switches. If you're still having problems, you might need to replace the key.
If your keyboard is connected via a physical cable, try swapping to a different cable and plugging into a different USB port on your computer. If you're using Bluetooth, try connecting with a cable to see if that fixes the problem. If it does, you may have a Bluetooth driver problem.
If your keyboard is wireless and runs on batteries, the connection may be dropping due to low battery. Try inserting a fresh pair of batteries and see if that helps.
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