The Yamaha Rubber Contact VU32840 2M is a specific part number for a conductive rubber contact strip used in various Yamaha keyboards. This component sits beneath the keys and is responsible for triggering sounds when a key is pressed, acting as the key sensor.
Product description
Function: Each contact strip has carbon contacts inside small “bubbles.” When a key is pressed, it pushes a bubble down, causing the carbon to complete a circuit on the key contact circuit board, which then triggers the sound.
Part number details: The part number is VU32840. The variations such as VU328400, VU328401, and VU328402 are common and typically interchangeable, as they all refer to a 12-key strip with two contact points per key.
Configuration: The “2M” in the name indicates it is a strip with two contact points for each key, which is common for velocity-sensitive keyboards.
Quantity: You would need multiple strips to replace the contacts for an entire keyboard, with the exact number depending on the total number of keys. For example, a 61-key keyboard would use a combination of 12-key and 13-key strips.
Compatibility
The VU32840 contact strip is compatible with a wide range of older Yamaha keyboards, primarily from the PSR and PSR-S series. It is not compatible with all Yamaha keyboards, so it is essential to confirm the specific model before purchase. Known compatible models include:
