Sony XR-4740RDS Car Stereo Manual

The Sony XR-4740RDS is a high-performance car stereo system featuring RDS (Radio Data System) technology, CD playback, AM/FM tuner, 4x50W max power output, detachable faceplate for security, preset station memory, bass/treble controls, and auxiliary input capability. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Playing CD Media 8. Security Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, Remote Control (if applicable), Wiring harness, Antenna connector, AUX input, Speaker outputs.

Feature	Description
RDS (Radio Data System)	Displays station information like song title and artist
CD Playback	Plays standard audio CDs and CD-R/RW
AM/FM Tuner	30 preset stations (18 FM, 12 AM)
Power Output	4 x 50W max (4 x 20W RMS)
Detachable Faceplate	Security feature to prevent theft
AUX Input	3.5mm jack for connecting external audio devices
Bass/Treble Controls	Adjustable sound settings
Loudness Function	Enhances sound at low volumes
Fader/Balance	Adjusts front/rear and left/right speaker balance
Illumination	Adjustable display color to match car interior

Installation

Unpack and inspect contents. Ensure vehicle is parked safely with ignition off.

Disconnect negative battery terminal: For safety during installation.
Remove existing stereo: Use appropriate removal tools for your vehicle.
Connect wiring harness: Match colors to vehicle wiring (red=ignition, yellow=battery, black=ground).
Connect antenna: Plug antenna cable into rear of unit.
Connect speakers: Ensure proper polarity (positive/negative).
Secure unit: Slide into dashboard and secure with mounting sleeve.
Reconnect battery: Reattach negative terminal.

WARNING! Professional installation recommended. Incorrect wiring can damage vehicle electrical system.

First-Time Setup

Power on unit; follow initial setup prompts.

Set clock: Press and hold CLOCK button, adjust with tuning knob.
Program radio stations: Tune to desired station, press and hold preset button (1-6).
Adjust sound settings: Use BASS/TREBLE controls for preferred sound.
Set display illumination: Choose color that matches dashboard lighting.
Test all functions: Verify CD playback, radio reception, and AUX input.

CAUTION! Do not operate while driving. Park vehicle for initial setup.

Specifications

Power Requirements: 12V DC, negative ground.
Tuner Section: FM 87.5-108 MHz, AM 530-1710 kHz.
CD Compatibility: Audio CD, CD-R, CD-RW.
Output Power: 50W x 4 max (20W x 4 RMS).
Signal-to-Noise Ratio: >90dB (CD).
Frequency Response: 20Hz-20kHz.
Dimensions: DIN size (178mm x 50mm x 160mm).
Operating Temperature: -20°C to +60°C.
Security: Detachable faceplate with carrying case.

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BASS/TREBLE buttons, FADER/BALANCE controls, EJECT button.

Remote (if included): POWER, VOLUME, TRACK UP/DOWN, PRESET, MUTE, DISPLAY.

Radio: Manual tuning knob, SEEK function, PRESET stations (1-6), RDS ON/OFF. CD: PLAY/PAUSE, STOP, TRACK UP/DOWN, RANDOM/REPEAT. Audio: BASS (-10 to +10), TREBLE (-10 to +10), LOUDNESS ON/OFF, FADER (front/rear), BALANCE (left/right). Display: DIMMER control, CLOCK setting.

Connecting Devices

AUX Input: 3.5mm jack on front panel. External Amplifier: RCA pre-outs (if available).

Turn off unit before connecting devices.
AUX connection: Plug 3.5mm cable from MP3 player/phone into AUX jack.
Select source: Press SOURCE button until "AUX" appears on display.
Adjust volume: Start with low volume on external device.

Tip: Use quality cables for best audio performance. Route cables safely away from moving parts.

Playing CD Media

Supports audio CDs, CD-R, CD-RW.

Insert disc: Press EJECT, load CD with label side up.
Play: Press PLAY or close tray; unit starts playback automatically.
Track selection: Use TRACK UP/DOWN buttons or numeric keys.
Fast forward/reverse: Press and hold TRACK buttons.
Repeat/Random: Press RPT for repeat track; RDM for random play.
Eject: Press EJECT button; remove disc when tray opens.
Program play: Use P.MODE to program up to 20 tracks in desired order.
Scan: Press SCAN to sample first 10 seconds of each track.

WARNING! Do not use damaged or irregularly shaped CDs. Do not insert foreign objects into CD slot.

Security Features

Detachable Faceplate: Remove when leaving vehicle to deter theft. Security Code: Optional code can be set (default 0000).

Care & Cleaning

Turn off and remove faceplate before cleaning. Use soft, dry cloth for display and buttons. For CD lens cleaning, use approved CD lens cleaner only.

CAUTION! Do not use solvents, alcohol, or abrasive cleaners. Keep faceplate in protective case when not installed.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE marked for European compliance. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact Sony customer service at 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/connections	Check fuse (10A), verify wiring connections, ensure ignition is on.
Poor radio reception	Antenna connection	Ensure antenna cable fully inserted; check antenna for damage.
CD won't play	Disc/player issue	Check disc for scratches/dirt; ensure correct side up; try different CD.
No sound from speakers	Speaker connections	Verify speaker wires connected properly; check speaker impedance (4-8 ohms).
Display shows "CODE"	Security lock	Enter security code (default 0000); contact dealer if code lost.
Remote not working	Batteries/obstruction	Replace batteries; ensure clear line of sight to IR sensor.

Reset: Disconnect battery for 5 minutes to reset unit (note: may lose presets).

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