Sony M690 Car Stereo Manual

The Sony M690 is an in-dash CD receiver with AM/FM tuner, built-in amplifier, CD/MP3 playback, auxiliary input, and remote control capability. It features a detachable faceplate for security, customizable illumination, preset station memory, and audio adjustments including bass, treble, fader, and balance controls. 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: CD/MP3 player, AM/FM tuner, Detachable Faceplate, Auxiliary Input, Remote Control Sensor, Speaker Outputs, Power/Antenna Connectors.

Feature	Description
CD/MP3 Playback	Plays standard audio CDs and MP3-encoded discs
AM/FM Tuner	30 station presets (18 FM, 12 AM)
Detachable Faceplate	Security feature to prevent theft
Auxiliary Input (AUX IN)	3.5mm jack for external audio devices
Remote Control Sensor	For optional Sony remote control operation
Power/Antenna Connector	For vehicle power and antenna connection
Speaker Outputs	Front and rear channel outputs (4 channels)
Audio Controls	Bass, Treble, Fader, Balance adjustments
Illumination	Customizable button/display color
Clock	Digital clock display

Installation

Unpack and inspect contents. Ensure vehicle is off and battery disconnected.

Remove existing stereo: Use DIN tools to release old unit.
Connect wiring harness: Match colors (red=ignition, yellow=battery constant, black=ground).
Connect antenna plug to rear of unit.
Connect speaker wires to appropriate channels (front left/right, rear left/right).
Slide unit into dash and secure with mounting sleeve.
Reconnect vehicle battery and test operation.

WARNING! Disconnect vehicle battery before installation to prevent short circuits. Ensure all connections are secure and insulated.

First-Time Setup

Power on the unit; follow initial setup steps.

Set the clock: Press and hold CLOCK button, use tuning knob to set time.
Program radio presets: Tune to desired station, press and hold a preset button (1-6) for 2 seconds.
Adjust audio settings: Use BASS, TREBLE, FADER, BALANCE controls for preferred sound.
Set illumination color: Enter menu, select ILLUMINATION, choose color option.

CAUTION! Do not operate while driving. Park vehicle in a safe location for setup.

Specifications

Power Output: 50W x 4 channels (max).
Tuner: AM/FM with 30 presets.
CD Playback: CD-DA, CD-R, CD-RW, MP3 CDs.
Audio Input: 3.5mm AUX IN jack.
Illumination: Multi-color LED customization.
Security: Detachable faceplate with carrying case.
Power Supply: 12V DC, negative ground.
Dimensions: DIN size (178mm x 50mm).
Operating Temp: 14°F to 158°F (-10°C to 70°C).

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BAND button, tuning knob, CD slot, AUX IN jack, faceplate release button.

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

Audio Settings: BASS (-10 to +10), TREBLE (-10 to +10), FADER (front/rear balance), BALANCE (left/right balance). Radio: Manual/seek tuning, preset memory. CD: PLAY, PAUSE, STOP, SKIP (forward/back), REPEAT, RANDOM. Menu: CLOCK setting, ILLUMINATION color, BEEP on/off, RESET.

Connecting Devices

AUX Input: 3.5mm cable from portable player. Speakers: Up to four speakers (front and rear pairs).

Turn off vehicle and unit before connecting.
Connect AUX cable from device's headphone jack to AUX IN on front panel.
Select AUX mode by pressing SOURCE button.
Ensure speaker impedance is 4-8 ohms for proper operation.

Tip: Use a high-quality shielded AUX cable to minimize noise interference.

Playing Media

Supports audio CDs and MP3 CDs.

Insert disc: Label side up into CD slot; unit will auto-load and begin playback.
Play/Pause: Press PLAY/PAUSE button.
Skip tracks: Press SKIP forward or backward.
Repeat/Random: Press RPT for repeat track/all; press RDM for random play.
Eject: Press and hold EJECT button (or open faceplate and press manual eject if jammed).
MP3 Navigation: Use folder skip buttons (if equipped) to navigate directories.

WARNING! Do not insert damaged or irregular-shaped discs. Do not use while driving on rough roads to prevent skipping.

Security Features

Detachable Faceplate: Press release button, slide faceplate off. Store in provided case. Anti-Theft LED: Flashes when faceplate removed to deter theft.

Care & Maintenance

Clean faceplate with soft, dry cloth. Do not use solvents or abrasive cleaners. Keep discs clean and free of scratches.

CAUTION! Do not expose unit to extreme heat or moisture. Remove faceplate in high-theft areas.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. This device complies with part 15 of the FCC Rules. Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Blown fuse, wiring	Check vehicle fuse (usually 10A); verify wiring connections (red/yellow/black).
No sound from speakers	Speaker wires, fader	Check speaker connections; adjust fader/balance settings.
CD won't play	Disc format/damage	Ensure disc is CD-DA or MP3 format; clean disc; check for scratches.
Poor radio reception	Antenna connection	Ensure antenna plug is fully inserted; check antenna for damage.
Faceplate won't attach	Dirt/misalignment	Clean connectors on unit and faceplate; align properly and slide in firmly.

Reset: Use small pin to press RESET button on front panel (if available).

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