How do I replace a missing Roland piano pedal and power plug?
Answer
Identify the exact pedal type and power-supply rating for the Roland KR-33 from Roland’s parts documentation or an authorized dealer, then order matching replacements. Do not force a generic AC adapter with the wrong voltage.
Before you start: stop right away if…
- Using the wrong AC adapter voltage or polarity can damage the piano.
Follow these steps
Confirm model details
Locate the KR-33 model label and serial number on the piano. Photograph the power jack area and any remaining plug markings.
You should see: You have the identifiers a parts desk needs.
Identify the pedal type
Ask a Roland dealer or search Roland’s support parts list for the KR-33 damper or pedal unit. Prefer the pedal style specified for that model rather than a random switch pedal.
You should see: You know the correct pedal part or compatible equivalent.
Match the power supply
Order a Roland-approved adapter with the same voltage, current, and polarity as the KR-33 requires. If unsure, provide the dealer your serial number and jack photo.
You should see: You receive a compatible power supply specification or part.
Test after installation
Connect only the approved adapter, power on, then plug in the pedal and test sustain. If the piano will not power with the correct adapter, stop and seek service.
You should see: The piano powers normally and the pedal sustains notes.
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Extra tips
What to look for: A Roland KR-33 that powers on or plays but is missing the sustain pedal, AC adapter, or both.
Before you change anything: Write down model KR-33 and the serial number from the cabinet. Note the voltage and polarity printed near the power jack if still visible. Unplug the piano before inspecting the jack.