Sony TA-AX285 Car Stereo Manual

The Sony TA-AX285 is a high-performance car stereo system featuring AM/FM radio with 18 FM and 6 AM presets, cassette tape player with auto-reverse, Dolby B noise reduction, 4-channel amplifier output (4 x 15W RMS), front/rear fader control, bass/treble adjustment, loudness compensation, detachable faceplate security, and anti-theft LED indicator. Compatible with most vehicle electrical systems (12V DC negative ground). 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 Speakers 7. Playing Cassette Tapes 8. Security Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with cassette mechanism, Detachable Faceplate, Wiring Harness, Mounting Sleeve, Remote Control (optional), Antenna connector, Speaker outputs, Power/Illumination inputs.

Feature	Description
AM/FM Tuner	18 FM and 6 AM station presets
Cassette Player	Auto-reverse, Dolby B noise reduction
Amplifier Output	4 x 15W RMS (4 ohms)
Audio Controls	Bass, Treble, Loudness, Fader (Front/Rear)
Security	Detachable faceplate, anti-theft LED
Power Requirements	12V DC, negative ground
POWER Button	Turns unit on/off
EJECT Button	Ejects cassette tape
LOUDNESS Button	Enhances bass at low volumes
DOLBY NR Button	Activates Dolby noise reduction

Installation

Unpack and verify all components. Ensure vehicle is turned off.

Disconnect vehicle battery negative terminal.
Remove existing stereo (if applicable) using removal tools.
Connect wiring harness: Match colors (Red: +12V ignition, Yellow: +12V constant, Black: Ground, Blue: Power antenna, etc.).
Connect speaker wires (White/White-black: Front left, Gray/Gray-black: Front right, etc.).
Slide unit into mounting sleeve and secure with brackets.
Reconnect battery and test functions.

WARNING! Incorrect wiring may damage unit or vehicle electrical system. Verify polarity before connecting.

First-Time Setup

After installation, power on unit and configure settings.

Set clock: Press and hold CLOCK button, use TUNE/SEEK to adjust time.
Program radio presets: Tune to desired station, press and hold preset button (1-6/1-18).
Adjust audio settings: Use BASS/TREBLE knobs, set fader balance.
Enable security: Detach faceplate when leaving vehicle.

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

Specifications

Power Output: 15W RMS x 4 channels (4 ohms).
Tuner Section: FM 87.5-108 MHz, AM 530-1710 kHz.
Cassette Section: Frequency response 30-15,000 Hz (with Dolby).
Signal-to-Noise Ratio: 72 dB (Dolby ON).
Wow & Flutter: 0.15% WRMS.
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, SOURCE (TAPE/RADIO), EJECT, BASS/TREBLE knobs, FADER knob, PRESET buttons.

Remote (optional): POWER, VOLUME, PRESET, TUNE/SEEK, PLAY/PAUSE, STOP, FF/REW.

Radio: Manual tuning with TUNE/SEEK, auto-scan, preset memory. Tape: PLAY, STOP, FF/REW, auto-reverse, Dolby NR. Audio: Bass (-10 to +10 dB), Treble (-10 to +10 dB), Loudness ON/OFF, Fader (Front/Rear balance). System: Clock setting, illumination dimmer.

Connecting Speakers

Supports 4 speakers (Front left/right, Rear left/right).

Ensure speaker impedance is 4-8 ohms.
Connect positive (+) and negative (-) wires correctly to maintain phase.
Use 16-18 gauge speaker wire for runs under 20 feet.
Adjust fader control to balance front/rear output.

Tip: Test each speaker individually after connection.

Playing Cassette Tapes

Supports standard Type I (normal bias) tapes.

Insert cassette: Label side up, open edge toward right.
Play: Press PLAY; auto-reverse engages at tape end.
Stop/Eject: Press STOP then EJECT to remove tape.
Fast Forward/Rewind: Press FF or REW.
Dolby NR: Press DOLBY button for reduced hiss on encoded tapes.
Music Search: Press FF/REW during play to find next track.
Loudness: Engage for enhanced bass at low volume levels.

WARNING! Do not insert objects into cassette slot. Avoid tapes longer than C-90.

Security Features

Detachable Faceplate: Remove by pressing release button. Anti-theft LED: Blinks when faceplate detached. Code Security (if equipped): Enter 4-digit code if power disconnected.

Care & Maintenance

Clean faceplate with soft, dry cloth. Clean tape heads every 30 hours with isopropyl alcohol and cotton swab. Keep unit dry and avoid extreme temperatures.

CAUTION! Do not use solvents or abrasives. Never insert damaged tapes.

Regulatory Information

FCC Part 15: Class B digital device compliant. 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	Wiring/fuse	Check fuse (10A), verify constant and ignition power connections.
No sound from speakers	Wiring/settings	Verify speaker connections; check fader/balance settings.
Poor radio reception	Antenna	Ensure antenna connected; check antenna amplifier power (blue wire).
Tape won't play	Dirty heads/tape	Clean tape heads; try different cassette.
Faceplate won't attach	Alignment	Ensure unit is powered; align connectors properly.

Reset: Disconnect battery for 5 minutes to reset security code (if equipped).

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