Sony CDX-R450 Car Stereo Manual

The Sony CDX-R450 is an in-dash CD receiver designed for car audio systems, featuring AM/FM tuner, CD playback, CD-R/RW compatibility, 45W x 4 high power output, detachable faceplate security, preset station memory, bass boost, loudness, and audio input for external devices. 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: CD receiver unit, Remote Control (optional), Wiring harness, Antenna connector, Audio input jack, Detachable faceplate.

Feature	Description
AM/FM Tuner	30 preset stations (18 FM, 12 AM)
CD Player	Plays audio CDs, CD-R, CD-RW
Power Output	45W x 4 (max)
Detachable Faceplate	Security feature to prevent theft
Audio Input	Front AUX input for portable devices
Bass Boost	Enhances low-frequency sound
Loudness	Compensates for low volume listening
Clock	Digital clock display
Fader/Balance	Adjusts front/rear and left/right audio
Power Antenna Control	Activates power antenna when unit is on

Installation

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

Disconnect negative battery terminal for safety.
Remove existing stereo (if applicable) using removal tools.
Connect wiring harness: Match colors to vehicle wiring (red=ignition, yellow=battery, black=ground).
Connect antenna plug to antenna input on rear of unit.
Slide unit into dashboard opening and secure with mounting sleeve.
Reconnect battery terminal.

WARNING! Incorrect wiring may cause damage or fire. Consult vehicle manual or professional installer.

First-Time Setup

Power on unit; follow initial settings.

Set clock: Press and hold CLOCK button, use tuning knob to adjust time.
Program radio presets: Tune to desired station, press and hold preset button (1-6).
Adjust audio settings: Use BASS, TREBLE, FADER, BALANCE controls.
Set loudness: Press LOUD for enhanced low-volume sound.

CAUTION! Do not operate while driving. Make adjustments only when vehicle is parked.

Specifications

Power Output: 45W x 4 (max), 17W x 4 (RMS).
Tuner: FM/AM with 30 presets.
CD Compatibility: Audio CD, CD-R, CD-RW.
Frequency Response: 20Hz - 20kHz.
Signal-to-Noise Ratio: >90dB (CD).
Audio Input: Front 3.5mm AUX jack.
Power Supply: 12V DC, negative ground.
Dimensions: DIN size (178mm x 50mm x 160mm).
Operating Temp: 0°C to 40°C (32°F to 104°F).

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BAND button, tuning knob, CD slot, AUX input.

Remote (optional): POWER, VOLUME, SOURCE, PRESET, SEEK, PLAY/PAUSE.

Audio: BASS, TREBLE, FADER, BALANCE, LOUDNESS. Radio: Manual tuning, seek tuning, preset memory. CD: PLAY, PAUSE, STOP, SKIP (TRACK UP/DOWN), REPEAT, RANDOM. Setup: Clock setting, display dimmer, beep on/off.

Connecting Devices

AUX Input: Front 3.5mm jack for MP3 players, smartphones. Power Antenna: Blue wire from harness.

Turn off unit and ignition before connecting.
Plug 3.5mm cable from device into front AUX jack.
Select AUX source by pressing SOURCE button.
For power antenna, connect blue wire to antenna control wire.

Tip: Use high-quality cables for best audio performance.

Playing CD Media

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

Insert disc: Label side up into CD slot.
Play: Press SOURCE to select CD mode; playback starts automatically.
Stop: Press and hold SOURCE or remove disc.
Skip: Press TRACK UP/DOWN for next/previous track.
Repeat: Press RPT to repeat track or disc.
Random: Press RDM for random track playback.
Fast forward/rewind: Press and hold TRACK UP/DOWN during playback.
Pause: Press PLAY/PAUSE to pause; press again to resume.

WARNING! Do not insert damaged or irregular-shaped discs. Avoid extreme temperatures.

Security Features

Detachable Faceplate: Remove by pressing release button; store separately. Code Security: Optional security code can be set (see manual for details).

Care & Cleaning

Disconnect power before cleaning. Use soft, dry cloth for faceplate and unit. For CD lens, use cleaning disc only.

CAUTION! Do not use solvents or abrasive cleaners. Keep liquids away from unit.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/ignition	Check battery and ignition connections; verify fuse.
No sound	Volume/mute	Increase volume; check mute function; verify speaker connections.
CD not playing	Disc/loading	Ensure disc is clean and inserted correctly; try different CD.
Poor radio reception	Antenna	Check antenna connection; extend antenna fully.
Faceplate not attaching	Alignment	Align faceplate properly with unit; ensure no obstructions.

Reset: Disconnect battery for 5 minutes to reset unit.

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