Sony RMT-D123P Manual

The Sony RMT-D123P is a universal infrared remote control designed for compatibility with a wide range of Sony audio/video equipment, including TVs, DVD/Blu-ray players, home theater systems, and soundbars. It features a user-friendly layout with essential control buttons, learning capabilities for non-Sony devices, and a long operational range. Below are key sections covering overview, setup, programming, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Infrared transmitter, LCD display (on some models), power button, navigation pad, volume/channel controls, input selection, menu controls, number pad, and special function keys.

Feature	Description
Infrared (IR) Operation	Controls devices via line-of-sight IR signals
Universal Compatibility	Pre-programmed codes for most Sony AV products
Learning Function	Can learn IR commands from other remotes
Ergonomic Design	Contoured shape for comfortable grip
Dedicated Buttons	Quick access to power, volume, input, menu, and playback
Long Range	Effective up to approximately 8 meters (26 feet)
Battery Indicator	Low battery warning via LED or display
Device Selection	Buttons to switch control between TV, DVD, AUDIO, etc.
Backlight (Optional)	Illuminates keys in low-light conditions (on specific models)
Child Lock	Prevents accidental button presses

Package Contents

Unpack and verify all items are present.

• Sony RMT-D123P Remote Control (1 unit)
• AAA Batteries (2 pieces) – may vary by region
• Quick Start Guide
• Warranty Information Card

NOTE: If any item is missing or damaged, contact your retailer or Sony support.

Initial Setup & Battery Installation

Install batteries before first use.

1. Turn the remote over and locate the battery compartment cover on the back.
2. Slide the cover in the direction of the arrow to open.
3. Insert two AAA batteries, observing correct polarity (+/- markings).
4. Replace the cover by sliding it back until it clicks into place.
5. Point the remote at your Sony device and test basic functions (Power, Volume).

WARNING! Use only recommended battery types. Do not mix old and new batteries or different chemistries. Remove batteries if not using for extended periods to prevent leakage.

Specifications

• Model: RMT-D123P
• Type: Universal Infrared Remote Control
• Power Source: 2 x AAA batteries (DC 3V)
• Battery Life: Approximately 12 months with normal use
• Operating Range: Up to 8 meters (26 feet), angle approx. ±30 degrees
• Supported Devices: Sony TVs, Blu-ray/DVD players, home theater systems, soundbars, select receivers
• Learning Channels: Up to 10 commands (for non-Sony devices)
• Dimensions (approx.): 150 mm x 50 mm x 20 mm (W x H x D)
• Weight (with batteries): Approx. 100 g
• Operating Temperature: 0°C to 40°C (32°F to 104°F)

Control Layout & Functions

Primary buttons and their functions:

Top Section: POWER, DEVICE SELECT (TV, DVD, AUDIO, etc.), INPUT, MUTE.

Center Navigation: Directional Pad (Up, Down, Left, Right), OK/ENTER, RETURN/BACK.

Media Controls: PLAY, PAUSE, STOP, PREVIOUS, NEXT, REC (if supported).

Number Pad: 0-9, +100 (for triple-digit channels), VOLUME +/-, CHANNEL +/-.

Special Keys: MENU, GUIDE, OPTIONS, DISPLAY, SUBTITLE, AUDIO, EJECT (for compatible players).

Bottom: LEARNING/SETUP button (for programming).

Programming for Sony Devices

To control a Sony device using pre-set codes:

1. Turn on the device you wish to control.
2. Press and hold the corresponding DEVICE button (e.g., TV) on the remote for 3 seconds until the LED indicator lights up.
3. While the LED is lit, enter the 3-digit code for your specific Sony model (refer to the code list in the appendix or Quick Start Guide).
4. The LED will blink twice to confirm successful programming.
5. Test the remote by pressing POWER, VOLUME, or other functions.

Tip: If the first code doesn’t work, try other codes for your device type from the list.

Learning Function (For Non-Sony Devices)

The remote can learn commands from another remote control.

1. Place both remotes facing each other, 2-5 cm apart.
2. Press and hold the LEARNING button on the RMT-D123P until the LED lights steadily.
3. On the RMT-D123P, press the button you want to program (e.g., VOLUME UP).
4. Immediately press and hold the corresponding button on the original remote until the RMT-D123P’s LED blinks rapidly, then turns off.
5. Repeat for other buttons as needed (max 10 learned commands).
6. Press LEARNING again to exit programming mode.

CAUTION! Ensure stable lighting; avoid direct sunlight or strong IR interference during learning.

Care & Maintenance

Keep the remote clean and handle with care.

• Use a soft, dry cloth to clean the surface. For stubborn marks, slightly dampen the cloth with water.
• Do not use solvents, abrasives, or chemical cleaners.
• Avoid exposure to extreme temperatures, humidity, direct sunlight, or water.
• Replace batteries promptly when the low battery indicator appears or performance decreases.

WARNING! Do not disassemble the remote. There are no user-serviceable parts inside.

Regulatory & Compliance

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that it does not cause harmful interference. Contains FCC ID: [Applicable ID per model]. Sony and the Sony logo are trademarks of Sony Corporation. For detailed compliance information, warranty, and support, visit www.sony.com/electronics/support or contact Sony Customer Service at 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Remote not working	Dead batteries, obstruction, wrong device selected	Replace batteries; ensure clear line-of-sight to device; press correct DEVICE button.
Partial functions not working	Incorrect programming code	Reprogram with another code for your device model.
Learning function fails	Distance, interference, low battery on original remote	Place remotes closer (2-5 cm); reduce ambient IR light; ensure original remote has good batteries.
Short operating range	Weak batteries, obstacles, dirty IR window	Replace batteries; remove obstacles; clean IR transmitter window on remote.
Buttons unresponsive	Battery leakage, physical damage	Check for battery corrosion; if present, clean contacts carefully or replace remote.

Reset: Remove batteries for 1 minute, then reinsert to reset the remote’s memory (note: this may erase learned commands).

Support: 1-800-222-7669; www.sony.com/electronics/support