sony STR-DE705 Car Stereo Manual

The Sony STR-DE705 is a high-performance car stereo receiver featuring AM/FM tuner, CD player, auxiliary input, preamp outputs, detachable faceplate security, and customizable audio settings. It delivers powerful sound with adjustable 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 & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, Remote Control, Wiring harness, Antenna connector, AUX input, Preamp outputs.

Feature	Description
AM/FM Tuner	With 30 station presets (18 FM, 12 AM)
CD Player	Plays standard audio CDs and CD-R/RW
AUX Input	For connecting external audio devices
Preamp Outputs	Front, rear, and subwoofer outputs for external amplifiers
Detachable Faceplate	Security feature to prevent theft
Audio Controls	Bass, treble, fader, balance, loudness
Power Output	50W x 4 channels maximum power
Illumination	Adjustable display brightness
Clock & Timer	Built-in clock with sleep timer function
Remote Control	Infrared remote for basic functions

Installation

Unpack and inspect contents. Ensure vehicle is turned off during installation.

Disconnect negative battery terminal for safety.
Connect wiring harness: Match colors to vehicle wiring (red to ignition, yellow to battery, black to ground).
Connect antenna plug to antenna input on rear of unit.
Connect speakers to appropriate outputs (front left/right, rear left/right).
Secure unit in dashboard using mounting sleeve and brackets.
Reconnect battery and test functions.

WARNING! Ensure all connections are secure and insulated to prevent short circuits. Professional installation recommended.

First-Time Setup

Power on unit; follow initial setup prompts.

Set clock: Press and hold CLOCK button, use tuning knob to set time.
Program radio stations: Tune to desired station, press and hold preset button (1-6) for 2 seconds.
Adjust audio settings: Use BASS, TREBLE, FADER, BALANCE controls to preference.
Set security code: In menu, set 4-digit code for theft deterrence.

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

Specifications

Power Output: 50W x 4 (max), 22W x 4 (RMS).
Tuner: AM/FM with 30 presets.
CD Player: Plays CD, CD-R, CD-RW.
Frequency Response: 20Hz - 20kHz.
Signal-to-Noise Ratio: >80dB.
Preamp Outputs: 2V front/rear, subwoofer.
Power Supply: 12V DC, negative ground.
Dimensions: DIN size (178mm x 50mm).
Operating Temp: -20°C to 60°C.

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BAND button, tuning knob, preset buttons (1-6), OPEN/CLOSE, PLAY/PAUSE.

Remote: POWER, VOLUME, SOURCE, PRESET, MUTE, PLAY/PAUSE, SKIP.

Audio: BASS (-10 to +10), TREBLE (-10 to +10), FADER (front/rear), BALANCE (left/right), LOUDNESS (on/off). Radio: Manual/seek tuning, auto memory, local/distance reception. CD: Repeat (one/all), random play, scan. Display: Dimmer control, clock display.

Connecting Devices

AUX: Use 3.5mm cable to AUX input. Preamp outputs: RCA cables to external amplifiers.

Turn off unit before connecting devices.
Connect AUX cable from device headphone jack to AUX input on rear.
Connect preamp outputs to amplifier inputs matching channels.
Select source via SOURCE button (FM, AM, CD, AUX).

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

Playing Media

Supports audio CDs, CD-R/RW.

Insert disc: Press OPEN/CLOSE, load CD label side up.
Play: Press PLAY; disc starts automatically.
Skip tracks: Press SKIP forward/backward.
Pause: Press PLAY/PAUSE to pause/resume.
Repeat: Press REPEAT for track/disc repeat.
Random: Press RANDOM for shuffle play.
Scan: Press and hold SKIP to scan through tracks.
Eject: Press OPEN/CLOSE to eject disc.

WARNING! Do not use damaged or irregular shaped discs. Keep discs clean.

Security Features

Detachable Faceplate: Remove for theft prevention. Security Code: 4-digit code required if faceplate is reattached after power loss (default 0000).

Care & Cleaning

Disconnect power before cleaning. Use soft, dry cloth for faceplate and display. For stubborn dirt, dampen cloth slightly with water.

CAUTION! Do not use solvents or abrasive cleaners. Avoid liquid contact with internal components.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/fuse	Check connections; replace fuse (10A).
No sound from speakers	Speaker wiring/settings	Verify speaker connections; check fader/balance settings.
CD won't play	Disc/dirty lens	Use compatible disc; clean lens with cleaning disc.
Poor radio reception	Antenna connection	Ensure antenna plugged in fully; check antenna condition.
Remote not working	Batteries/obstruction	Replace batteries; ensure clear line of sight to sensor.
Unit locked (code)	Security code required	Enter 4-digit security code (default 0000).

Reset: Disconnect power for 1 minute to reset unit.

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