Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your NKF RMT-D197A replacement remote control. This remote is designed to be compatible with various Sony DVD Player models, offering a direct replacement without the need for programming.
Setup Instructions
Battery Installation
To begin using your remote control, you must first install the batteries. This remote requires two (2) 1.5V AA alkaline batteries (not included).
- Locate the battery compartment cover on the back of the remote control.
- Press down on the tab and slide the cover off in the direction indicated by the arrow.
- Insert two (2) AA batteries, ensuring that the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery compartment cover back into place until it clicks securely.

Figure 1: Battery compartment with batteries. This image illustrates the correct orientation for inserting two AA batteries into the remote control.
Note: No programming or pairing is required for this replacement remote control. Once batteries are installed, it is ready for use with compatible Sony DVD Players.
Operating Your Remote Control
The NKF RMT-D197A remote control provides full functionality for your compatible Sony DVD Player. Point the remote directly at the DVD player's infrared sensor for optimal performance.

Figure 2: Front view of the RMT-D197A remote control. This image displays the layout of all control buttons.
Key Functions Overview
- OPEN/CLOSE: Opens and closes the disc tray.
- TV INPUT: Switches the input source on your television (if supported by your TV and DVD player setup).
- TV I/O (Power): Turns the connected television on or off (if supported).
- I/O (Power): Turns the DVD player on or off.
- VOL (+/-): Adjusts the volume level.
- Number Buttons (0-9): Used for direct track selection or inputting numbers.
- CLEAR: Clears numerical entries or selections.
- PICTURE NAVI: Accesses picture navigation features.
- AUDIO: Selects audio tracks or languages.
- SUBTITLE: Toggles or selects subtitle options.
- TIME/TEXT: Displays time information or text features.
- MENU: Accesses the DVD disc menu.
- Directional Pad (Up, Down, Left, Right, Enter): Navigates through menus and confirms selections.
- RETURN: Returns to the previous menu or screen.
- DISPLAY: Shows on-screen display information.
- PREV (|<): Skips to the previous track or chapter.
- REPLAY: Repeats a short segment of playback.
- ADVANCE: Skips forward a short segment of playback.
- NEXT (>|): Skips to the next track or chapter.
- FAST/SLOW PLAY: Adjusts playback speed.
- PLAY (>): Starts or resumes playback.
- PAUSE (||): Pauses playback.
- STOP (■): Stops playback.
Maintenance and Care
- Cleaning: Wipe the remote control with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the surface or internal components.
- Battery Replacement: Replace batteries when the remote's response becomes sluggish or stops working. Always replace both batteries at the same time with new ones of the same type (AA alkaline).
- Storage: If the remote control will not be used for an extended period, remove the batteries to prevent leakage and potential damage. Store the remote in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Drops: Protect the remote from physical impact, as drops can damage internal circuitry.
Troubleshooting
- Remote not responding:
- Ensure batteries are installed correctly with the correct polarity (+/-).
- Replace old batteries with new AA alkaline batteries.
- Check for any obstructions between the remote control and the DVD player's infrared sensor.
- Ensure you are within the effective range and pointing the remote directly at the DVD player.
- Some buttons not working:
- This remote is a replacement for specific Sony DVD players. Ensure your DVD player model is listed as compatible.
- Clean the remote control surface, especially around the unresponsive buttons, to ensure no debris is interfering.
- Intermittent operation:
- This often indicates low battery power. Replace the batteries.
- Ensure there are no strong light sources (like direct sunlight or fluorescent lights) interfering with the infrared signal.
Product Specifications
| Model Number | RMT-D197A |
| Brand | NKF |
| Compatible Devices | Sony DVD Players (e.g., DVP-SR210, DVP-SR210P, DVP-SR510, DVP-SR510H, DVP-NS57P, DVP-NS41, DVP-NS50P, DVP-NS710H, DVP-PR50P, DVP-SR200P, DVP-SR400P, DVP-SR500H) |
| Power Source | 2 x 1.5V AA Alkaline Batteries (not included) |
| Dimensions (L x W x H) | 5.9 x 2.54 x 0.98 inches (approximately) |
| Item Weight | 2.08 ounces (approximately) |
| Color | Black |
| Special Feature | Ergonomic design |
Support Information
For any questions or concerns regarding your NKF RMT-D197A remote control, please contact the seller directly. We are committed to resolving any issues you may encounter to ensure your satisfaction.
Please have your purchase details ready when contacting support to facilitate a quicker resolution.