Introduction
This manual provides instructions for the proper setup, operation, and maintenance of your BOMAZ RMT-D187A Replacement Remote Control. This remote is designed to be a direct replacement for various Sony CD DVD Player models, offering immediate functionality without the need for programming.
Setup
1. Battery Installation
The RMT-D187A remote control requires two (2) AA batteries for operation. Batteries are not included with the remote control and must be purchased separately.
- Locate the battery compartment on the back of the remote control.
- Slide the battery compartment cover downwards to open it.
- Insert two AA batteries, ensuring that the positive (+) and negative (-) terminals align correctly with the markings inside the compartment. Incorrect battery orientation can prevent the remote from functioning.
- Slide the battery compartment cover back into place until it clicks securely.

Image: Back of the RMT-D187A remote control with the battery compartment open, illustrating the correct placement for two AA batteries.
2. Initial Use
This replacement remote control is designed for immediate use with compatible Sony DVD players. No programming or pairing is required. Once batteries are installed, point the remote towards your DVD player and begin operation.
Operating Instructions
The RMT-D187A remote control provides full functionality for your compatible Sony DVD player. Familiarize yourself with the button layout for optimal use.

Image: Front view of the RMT-D187A remote control, displaying the layout of all control buttons.
Key Functions:
- POWER (I/O): Turns the DVD player on or off.
- TV I/O: Controls the power of a connected TV (if compatible).
- TV INPUT: Switches the input source on a connected TV.
- PICTURE NAVI: Accesses picture navigation features.
- Number Buttons (0-9): For direct track selection or menu input.
- VOL (+/-): Adjusts the volume.
- TIME/TEXT: Displays time information or text.
- CLEAR: Clears selected entries.
- AUDIO: Selects audio tracks or modes.
- SUBTITLE: Selects subtitle tracks.
- TOP MENU: Accesses the disc's top menu.
- MENU: Accesses the disc's menu.
- Directional Pad (Up, Down, Left, Right, Enter): Navigates through menus and selections.
- RETURN: Returns to the previous menu or screen.
- DISPLAY: Shows on-screen display information.
- PREV / NEXT: Skips to the previous or next track/chapter.
- REPLAY / ADVANCE: Replays a short segment or advances a short segment.
- PLAY (►): Starts playback.
- PAUSE (∥∥): Pauses playback.
- STOP (■): Stops playback.
- FAST/SLOW PLAY: Controls playback speed.

Image: The RMT-D187A remote control displayed alongside a Sony DVD player, highlighting its compatibility with models such as DVP-SR200, DVP-SR200B, DVP-SR200P, DVP-SR400P, DVP-NS611H, DVP-NS710, DVP-NS710H, and DVP-SR500H.
Maintenance
Cleaning the Remote Control
To clean the remote control, gently wipe its surface with a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the remote's finish or internal components.
Battery Replacement
Replace the batteries when the remote control's response becomes sluggish or stops working. Always replace both AA batteries at the same time with new ones. Do not mix old and new batteries, or different types of batteries, as this can lead to leakage or malfunction. Dispose of used batteries according to local regulations.
Troubleshooting
If you experience issues with your RMT-D187A remote control, please refer to the following common solutions:
- Remote is not responding:
- Ensure the batteries are inserted correctly with the correct polarity (+/-).
- Replace the batteries with fresh AA batteries.
- Make sure there are no obstructions between the remote control and the DVD player's infrared sensor.
- Confirm you are within the effective operating range (up to 8 meters).
- Limited functionality or specific buttons not working:
- Verify that your DVD player model is listed as compatible with the RMT-D187A.
- Some older Sony DVD player models may have specific functions (e.g., 'Open/Close' tray) that were originally on the player itself or a different remote model (e.g., RMT-D197A). This replacement remote may not include every single function found on all original Sony remotes, particularly for less common or older features.
- Clean the remote's infrared emitter at the front tip to ensure a clear signal.
- Short operating range:
- Replace the batteries, as low battery power can reduce the remote's range.
- Ensure there are no strong light sources (like direct sunlight or bright fluorescent lights) interfering with the infrared signal.
Specifications
- Brand: BOMAZ
- Model Name: RMT-D187A (also known as CHY-01A)
- Connectivity Technology: Infrared
- Compatible Devices: Sony DVP-SR200, DVP-SR200B, DVP-SR200P, DVP-SR400P, DVP-NS611H, DVP-NS710, DVP-NS710H, DVP-SR500H CD DVD Players
- Special Feature: No Programming Required
- Maximum Range: 8 Meters (approximately 26 feet)
- Battery Type: 2 x AA batteries (not included)
- Material: ABS
- Color: Black
Warranty Information
This BOMAZ RMT-D187A Replacement Remote Control comes with a 30-day warranty from the date of purchase. This warranty covers manufacturing defects. Please retain your proof of purchase for any warranty claims.
Support
If you encounter any issues not covered in this manual or require further assistance, please refer to the seller's support contact information provided at the time of purchase. For general inquiries regarding your Sony DVD player, please consult its original user manual or Sony's official support resources.