Sony CDX-M630 Car Stereo Manual

The Sony CDX-M630 is a high-performance car stereo featuring a CD player with MP3/WMA playback, AM/FM tuner with 18 FM/6 AM presets, detachable faceplate security, front auxiliary input, 4-channel preamp outputs, and a 52W x 4 high-power amplifier. 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 Media 8. Security Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, Remote Control, Wiring harness, Mounting sleeve, Antenna adapter, User manual.

Feature	Description
CD Player	Plays CD, CD-R, CD-RW, MP3, WMA formats
AM/FM Tuner	18 FM presets, 6 AM presets with seek/scan
Power Output	52W x 4 (max), 17W x 4 (RMS)
Preamp Outputs	4-channel (front/rear) for external amplifiers
Front AUX Input	3.5mm jack for portable audio devices
Detachable Faceplate	Security feature to prevent theft
Display	Multi-color LCD with adjustable illumination
Audio Controls	Bass, Treble, Fader, Balance, Loudness
Clock	Digital clock with timer
Remote Control	Infrared remote for basic functions

Installation

Unpack and inspect contents. Ensure vehicle is turned off.

Disconnect negative battery terminal for safety.
Remove existing stereo using DIN tools or factory removal keys.
Connect wiring harness: Match colors (red=ignition, yellow=battery, black=ground).
Connect antenna adapter and preamp outputs if using external amps.
Slide unit into dash and secure with mounting sleeve.
Reconnect battery and test functions.

WARNING! Incorrect wiring may cause damage or fire. Consult professional installer if unsure.

First-Time Setup

Power on unit; follow initial setup prompts.

Set clock: Press and hold CLOCK button, use tuning knob to adjust.
Program radio presets: Tune to station, press and hold preset button (1-6/1-18).
Adjust audio settings: Use BASS/TREBLE controls for preferred sound.
Set display illumination: Match to vehicle dashboard lighting.
Test CD playback with known good disc.

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

Specifications

Power Supply: 12V DC, negative ground.
Output Power: 52W x 4 max (14.4V, 1kHz, 10% THD).
Preamp Output Voltage: 2V RMS.
Frequency Response: 20Hz-20kHz (±3dB).
Signal-to-Noise Ratio: >90dB (CD), >65dB (FM).
Separation: >55dB (1kHz).
Dimensions: 178mm(W) x 50mm(H) x 159mm(D).
Operating Temperature: -20°C to +60°C (-4°F to +140°F).
Supported Media: CD, CD-R, CD-RW, MP3, WMA.

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BAND, SEEK/TRACK, AUDIO, CLOCK, EJECT, AUX input.

Remote: POWER, VOLUME, MUTE, SOURCE, BAND, PRESET, SEEK/TRACK, AUDIO, DISPLAY.

Audio Settings: BASS (-10 to +10), TREBLE (-10 to +10), FADER (front/rear), BALANCE (left/right), LOUDNESS (on/off). Radio: Manual tuning, seek tuning, preset memory. Display: Illumination color (red/blue/green), dimmer control. Security: Detach faceplate by pressing release button.

Connecting Devices

AUX Input: Front 3.5mm jack for MP3 players/phones. Preamp Outputs: RCA jacks for external amplifiers.

Turn off vehicle before connecting devices.
For AUX: Plug 3.5mm cable from device to front jack.
For amps: Connect RCA cables from preamp outputs to amplifier inputs.
Select source via SOURCE button (FM/AM/CD/AUX).

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

Playing Media

Supports audio CDs, MP3/WMA CDs.

Insert disc: Press EJECT, load CD label-side up.
Play: Press SOURCE to select CD mode; auto-plays.
Skip tracks: Press SEEK/TRACK forward/back.
Fast forward/rewind: Press and hold SEEK/TRACK.
Repeat: Press AUDIO to access REPEAT (track/all).
Random: Press AUDIO for RANDOM play.
MP3 navigation: Use folder buttons to navigate directories.
Eject: Press EJECT to remove disc.

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

Security Features

Detachable Faceplate: Press release button, slide faceplate off. Security Code: Optional code can be set (default 0000). Anti-Theft LED: Flashing red LED when faceplate removed.

Care & Maintenance

Clean with dry, soft cloth only. Do not use solvents or chemicals.

CAUTION! Remove faceplate before cleaning. Store faceplate in protective case.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check battery and ignition connections; replace fuse (10A).
No sound	Mute/speakers	Check mute; verify speaker connections; test with headphones.
CD won't play	Disc/format	Ensure disc is clean; check format compatibility (MP3 bitrate <320kbps).
Poor radio reception	Antenna	Ensure antenna fully extended; check antenna connection.
Faceplate won't attach	Alignment/dirt	Clean connectors; align properly and press firmly.

Reset: Disconnect battery for 5 minutes to reset unit.

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