Sony DSR 70A Car Stereo Manual

The Sony DSR 70A is a high-performance in-dash car stereo receiver featuring AM/FM radio, CD playback, MP3/WMA compatibility, USB and auxiliary inputs, Bluetooth connectivity for hands-free calling and audio streaming, customizable illumination, and a detachable faceplate for security. 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. Bluetooth & Phone Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with detachable faceplate, Remote Control, Wiring harness, Antenna connector, USB port, AUX IN jack, Microphone for hands-free.

Feature	Description
AM/FM Tuner	Presets for 18 FM and 6 AM stations
CD Player	Plays audio CDs, CD-R/RW
MP3/WMA Playback	Compatible with MP3 and WMA files on CD/USB
USB Port	For connecting USB flash drives or iPod/iPhone
AUX IN Jack	3.5mm input for external audio devices
Bluetooth	Wireless audio streaming and hands-free calling
Detachable Faceplate	Security feature to prevent theft
Illumination	Adjustable display color (Green/Amber/White)
Power Output	50W x 4 channels (max)
Remote Control	Included for convenient operation

Installation

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

Disconnect negative battery terminal for safety.
Remove existing stereo (if any) using proper removal tools.
Connect wiring harness: Match colors (Red to ignition, Yellow to constant power, Black to ground).
Connect antenna plug and speaker wires.
Secure unit in dashboard and reattach negative battery terminal.

WARNING! Incorrect wiring can cause electrical damage or fire. Consult a professional if unsure.

First-Time Setup

Turn on ignition; unit powers on.

Set clock: Press and hold CLOCK button, use tuning knob to adjust.
Program radio stations: Tune to desired station, press and hold a preset button (1-6).
Pair Bluetooth phone: Enter Bluetooth menu, select "Pairing", follow on-screen prompts.
Adjust audio settings: Use SOUND menu for bass, treble, fader, balance.

CAUTION! Do not operate settings while driving. Park vehicle first.

Specifications

Power Supply: 12V DC, negative ground.
Tuner: FM/AM with 18 FM and 6 AM presets.
CD Compatibility: CD-DA, CD-R, CD-RW, MP3 CD, WMA CD.
USB: Supports USB mass storage class devices.
Bluetooth: Version 2.1+EDR, profiles A2DP, HFP.
Output Power: 50W x 4 (max), 17W x 4 (RMS).
Audio Inputs: AUX IN (3.5mm), USB Type-A.
Display: Multi-color LCD with adjustable dimmer.
Dimensions: DIN size (178mm x 50mm).

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, MENU, BAND, OPEN/CLOSE (CD), AUX/USB port.

Remote: POWER, Numeric buttons, VOLUME UP/DOWN, MUTE, SOURCE, PLAY/PAUSE, TRACK UP/DOWN.

Sound Settings: BASS, TREBLE, FADER, BALANCE, LOUDNESS (On/Off). Radio: Manual/Auto tuning, Preset memory. Clock: 12/24 hour format. Display: Illumination color (Green/Amber/White), Dimmer level. Bluetooth: Pairing list, Auto-connection.

Connecting Devices

USB: Connect flash drive or iPod to front USB port. AUX: Use 3.5mm cable from device to AUX IN jack.

Ensure unit is on and in SOURCE mode (USB or AUX).
For USB, wait for device recognition (may take a few seconds).
For AUX, start playback on external device.

Tip: Use high-quality USB drives formatted FAT32 for best compatibility.

Playing Media

Supports Audio CD, MP3/WMA CD, USB media.

Insert CD: Press OPEN/CLOSE, load disc label-side up.
Play: Press PLAY; skip tracks with TRACK UP/DOWN.
USB Playback: Navigate folders using tuning knob, press to select.
Repeat/Random: Press RPT or RDM during playback.
Fast Forward/Rewind: Press and hold TRACK buttons.
Eject CD: Press OPEN/CLOSE.

WARNING! Do not use damaged or irregularly shaped CDs. Avoid extreme temperatures.

Bluetooth & Phone Features

Pairing: Enter Bluetooth menu, select "Pairing", search for "DSR-70A" on phone, enter PIN (0000 default).

Audio Streaming: Select BT AUDIO as source. Hands-free Calling: Answer/end calls with PHONE button on remote or unit. Phonebook: Sync contacts via Bluetooth (if supported).

Care & Maintenance

Detach faceplate when leaving vehicle. Clean with soft, dry cloth; do not use chemicals.

CAUTION! Do not expose unit to direct sunlight or moisture for extended periods.

Regulatory Information

FCC ID: AK8DSR70A. This device complies with Part 15 of FCC Rules. Operation subject to conditions: (1) device may not cause harmful interference, (2) device must accept any interference received. Bluetooth is a trademark of Bluetooth SIG, Inc. Sony and the Sony logo are trademarks of Sony Corporation. For support, visit www.sony.com/audio or contact 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/ignition	Check fuse (10A), ensure ignition wire (Red) connected to switched power.
Bluetooth not pairing	Phone settings/distance	Ensure Bluetooth on phone is on; delete old pairing; stay within 3 feet.
USB not recognized	Format/capacity	Reformat USB to FAT32; use drive under 32GB; try different USB port.
Poor radio reception	Antenna connection	Ensure antenna plug fully inserted; check antenna for damage.
CD skips or ejects	Disc/dirty lens	Clean disc; use CD lens cleaner; avoid burned CDs with poor quality.

Reset: Press and hold POWER button for 10 seconds to reset unit.

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