1. Introduction
This manual provides instructions for the Dtirszxy replacement remote control, designed for use with various Yamaha RX-V series Audio Video Receivers. This remote control is compatible with models including RX-V540, RX-V550, RX-V557, RX-V559, RX-V430, RX-V440, RX-V450, RX-V457, RX-V459, and RX-V530. No programming or setup is required; simply insert batteries to begin operation.
2. Setup
2.1 Battery Installation
The remote control requires two AAA batteries (not included). Follow these steps to install them:
- Locate the battery compartment on the back of the remote control.
- Press down on the tab and slide the battery cover downwards to open it.
- Insert two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Slide the battery cover back into place until it clicks securely.

Figure 1: Battery compartment with cover removed.

Figure 2: Back of the remote control with battery cover closed.
Important Battery Information:
- Do not mix old and new batteries.
- Do not mix different types of batteries (e.g., alkaline and rechargeable).
- Remove batteries if the remote control will not be used for an extended period.
3. Operating Instructions
This remote control is designed for immediate use with compatible Yamaha RX-V series receivers once batteries are installed. No additional setup or pairing is required.
3.1 Basic Operation
To operate your receiver, point the remote control directly towards the signal receiving window of your Yamaha Audio Video Receiver. Ensure there are no obstructions between the remote and the receiver.

Figure 3: Front view of the remote control.
3.2 Button Functions
The remote control features standard buttons for common audio/video receiver functions:
- POWER (Red Button): Turns the receiver on or off.
- DVD/DTV/CBL/VCR/CD/MD/CD-R/TUNER/AUX/MULTI CH IN: Selects the corresponding input source.
- VOLUME +/-: Adjusts the master volume level.
- MUTE: Mutes or unmutes the audio output.
- PROG +/-: Navigates through radio presets or program selections.
- PRESET +/-: Selects radio presets.
- MENU SET: Accesses the receiver's on-screen menu for settings adjustments.
- ENTER: Confirms selections within menus.
- Arrow Buttons (Up, Down, Left, Right): Navigates through menu options.
- LEVEL: Adjusts individual speaker levels.
- STEREO/MUSIC/STANDARD/NIGHT/SLEEP: Selects various sound modes or functions.
- STRAIGHT: Activates direct sound mode.
- RETURN/MEMORY: Returns to the previous menu or saves settings.
- DIRECT ST: Activates direct stereo mode.
- A SPEAKERS/B SPEAKERS: Toggles speaker outputs A and B.
- SYSTEM POWER/STANDBY: Controls system power or standby mode.
4. Maintenance
4.1 Cleaning
To clean the remote control, use a soft, dry cloth. Do not use liquid cleaners, solvents, or abrasive materials, as these can damage the remote's surface or internal components.
4.2 Storage
When storing the remote control for an extended period, remove the batteries to prevent leakage, which can damage the device. Store in a cool, dry place away from direct sunlight and extreme temperatures.
5. Troubleshooting
- Remote not responding:
- Check if the batteries are inserted correctly with the correct polarity.
- Replace old batteries with new ones.
- Ensure there are no obstructions between the remote control and the receiver's sensor.
- Confirm that the remote is pointed directly at the receiver.
- Intermittent response:
- Batteries may be low; replace them.
- Ensure a clear line of sight to the receiver.
6. Specifications
- Brand: Dtirszxy
- Compatible Devices: Yamaha RX-V540, RX-V550, RX-V557, RX-V559, RX-V430, RX-V440, RX-V450, RX-V457, RX-V459, RX-V530 Audio Video Receivers
- Color: Black
- Max Number of Supported Devices: 1 (specific to the listed Yamaha models)
- Special Feature: No setup required
7. Warranty and Support
This remote control comes with a 90-day warranty from the date of purchase. The warranty covers manufacturing defects but does not cover damage caused by misuse, accidents, or normal wear and tear. Batteries and a physical manual are not included with the product.
For support or warranty claims, please contact your retailer or the manufacturer directly.