Yamaha LP1B Pedal Unit Installation Guide for RP125 Keyboard Stand

Updated at: 09/05/2025

The Yamaha LP1B pedal unit is a versatile and essential accessory for many keyboard players, offering a comfortable and responsive playing experience. Pairing it with the RP125 keyboard stand elevates your setup, providing a stable and organized playing environment. This guide will walk you through the straightforward process of installing the LP1B pedal unit onto your Yamaha RP125 keyboard stand, ensuring a secure and functional connection. Understanding this connection is crucial for optimal performance and preventing accidental damage to your equipment.

This installation is remarkably simple, requiring minimal tools and effort. Before you begin, familiarize yourself with the components of both the LP1B pedal unit and the RP125 stand. We will then proceed to a step-by-step guide, complete with clear images, to help you seamlessly integrate the LP1B pedal unit with your RP125 stand. Let's get started!

Preparation and Safety Guidelines

Tools Needed
  • Yamaha LP1B Pedal Unit
  • RP125 Keyboard Stand
  • 5mm wood screws
  • Drill
  • 1/4 inch drill bit
  • Allen wrench/Hex key
Safety Guidelines
  • Always ensure the power to both the LP1B pedal unit and the RP125 keyboard stand is OFF before connecting or disconnecting any cables.
  • Carefully inspect all cables and connectors for any damage before use. Do not use damaged cables.
  • Refer to both the Yamaha LP1B and RP125 manuals for specific connection diagrams and instructions. Incorrect connections can damage equipment.

Step-by-Step Instructions

  1. Unboxing and Pedal Unit Assembly

    • Unbox the Yamaha LP1B pedal unit and its components.
    • Assemble the pedal unit legs using the provided hardware (four shorter screws).
    • Attach the pedal unit to the pre-assembled legs using four longer screws and spring washers.
    Attach the pedal unit to the pre-assembled legs using four longer screws and spring washers.
    Unboxing and Pedal Unit Assembly

  2. Mounting on RP125 Stand (or Custom Stand)

    • If using a self-made stand, drill pilot holes (approximately 10mm deep) for the 5mm screws to attach the pedal unit to the stand.
    • Securely attach the pedal unit to the stand using the 5mm screws.
    Securely attach the pedal unit to the stand using the 5mm screws.Securely attach the pedal unit to the stand using the 5mm screws.
    Mounting on RP125 Stand (or Custom Stand)

  3. Adjusting and Routing Cables

    • If necessary, adjust the rubber feet on the bottom of the pedal unit by cutting them (as demonstrated in the video).
    • Route the cable from the pedal unit to the keyboard, utilizing the cable clips provided to keep it organized.
    • Connect the cable to the keyboard.
    • Secure the cable using the remaining cable clips to minimize strain on the connection.
    Secure the cable using the remaining cable clips to minimize strain on the connection.Secure the cable using the remaining cable clips to minimize strain on the connection.Secure the cable using the remaining cable clips to minimize strain on the connection.
    Adjusting and Routing Cables

Read more: Increase Expression Pedal Sensitivity: Ultimate Guide

Tips

  • Use 5mm screws for attaching the pedal unit to the stand. If you bought the Yamaha stand, these may not be needed.
  • When drilling pilot holes, do not drill too deep to avoid the hole coming through the other side.
  • Ensure proper alignment and sufficient spring washer tightness during assembly to prevent loosening.
  • Use cable clips to neatly manage the cable and minimize strain on the connection points.

Common Mistakes to Avoid

1. Incorrect Pedal Orientation

Reason: The LP1B pedal unit might be installed upside down or sideways, leading to improper function or instability.
Solution: Carefully align the pedal unit with the markings on the RP125 stand, ensuring the sustain pedal is correctly positioned.

2. Forgetting to Secure the Pedal Unit

Reason: The LP1B might not be fully attached to the RP125, resulting in a loose and potentially unstable connection.
Solution: Tighten all screws and clamps to ensure the pedal unit is firmly secured to the stand.

3. Ignoring Cable Management

Reason: Improperly routed cables can cause the pedal to malfunction or create a tripping hazard.
Solution: Neatly route and secure the cable connecting the LP1B to the keyboard, preventing tangling and ensuring safe operation.

FAQs

My LP1B pedal unit feels loose after installation. What should I do?
Ensure all screws are tightened securely. Check that the pedal unit is properly seated in its designated slot on the RP125 stand. If the issue persists, double-check that you haven't accidentally used the wrong screws or that there's no damage to the connecting points. If the problem continues, contact Yamaha support.
While this guide focuses on the straightforward installation of your Yamaha LP1B pedal unit with the RP125 keyboard stand, it's worth noting that a well-placed pedal can significantly enhance your performance, no matter the instrument. For those interested in exploring high-quality effects pedals, you might find our previous exploration of the best delay pedals insightful. This earlier piece, our review of top delay effects for 2024, delves into the world of tone shaping and can help you further optimize your sound.