Sony CDX-GT33W Car Stereo Manual

The Sony CDX-GT33W is a single-DIN car stereo featuring CD/MP3/WMA playback, AM/FM tuner with 18 FM/12 AM presets, front auxiliary input, detachable faceplate security, 52W x 4 high power output, EQ7 sound settings, CD text display, and wireless remote compatibility. Designed for easy installation in most vehicles with standard wiring harness. 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, wiring harness, mounting sleeve, wireless remote control, user manual.

Feature	Description
CD/MP3/WMA playback	Plays standard audio CDs and MP3/WMA files from CD-R/RW
AM/FM tuner	18 FM and 12 AM station presets
Front AUX input	3.5mm jack for portable audio devices
Detachable faceplate	Security feature to prevent theft
Power output	52W x 4 channels (max)
EQ7 sound settings	7-band equalizer with preset sound modes
CD Text display	Shows track information when available
Wireless remote	Included for convenient control
Clock display	12/24 hour format
Illumination	Red button illumination matches dashboard

Installation

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

Disconnect negative battery terminal for safety.
Remove existing stereo using removal tools if necessary.
Connect wiring harness: Match color-coded wires (red to ignition, yellow to battery, black to ground).
Connect antenna cable and speaker wires.
Slide unit into mounting sleeve and secure with brackets.
Reconnect battery and test functions.

WARNING! Always disconnect battery before installation to prevent electrical shorts. Ensure all connections are secure.

First-Time Setup

Power on unit; follow initial setup procedure.

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 sound settings: Use EQ button to select sound mode (ROCK, POP, JAZZ, etc.).
Set audio preferences: Adjust bass, treble, fader, and balance as needed.

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

Specifications

Audio Formats: CD-DA, CD-R/RW, MP3, WMA
Tuner: FM/AM with 18 FM and 12 AM presets
Output Power: 52W x 4 (max), 17W x 4 (RMS)
Frequency Response: 20Hz - 20kHz
Signal-to-Noise Ratio: 90dB (CD)
Inputs: Front AUX (3.5mm), antenna
Display: LCD with orange illumination
Power Supply: 12V DC, negative ground
Dimensions: 178mm (W) x 50mm (H) x 159mm (D)

Controls and Settings

Front Panel: POWER/VOLUME knob, SOURCE button, BAND button, tuning knob, AUX input, faceplate release.

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

Audio Settings: BASS, TREBLE, FADER, BALANCE, EQ7 (ROCK, POP, JAZZ, CUSTOM, etc.). Radio: Manual/auto tuning, local/distance reception, preset memory. CD: Repeat (1/ALL), random play, scan, CD text. System: Clock setting, display dimmer, beep on/off.

Connecting Devices

AUX Input: Front 3.5mm jack for portable players. Speakers: Standard 4-channel wiring.

Turn off vehicle ignition before connecting devices.
Plug 3.5mm cable from portable device into front AUX input.
Select AUX mode using SOURCE button.
Control volume from car stereo; use device for playback control.

Tip: Use quality cables for best audio performance. Keep cables organized to avoid interference.

Playing Media

Supports audio CDs, MP3/WMA CDs, and AUX input.

Insert disc: Press EJECT button, load CD label-side up.
Play: Press PLAY or close tray; unit auto-starts playback.
Skip tracks: Press SKIP forward/backward buttons.
Scan: Press and hold SKIP to scan through tracks.
Repeat: Press RPT for track or disc repeat.
Random: Press RDM for random playback.
MP3 navigation: Use folder buttons to navigate directories.
Pause: Press PLAY/PAUSE during playback.

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

Security Features

Detachable Faceplate: Press release button and slide faceplate off for security. Code Security: Optional security code can be set (see manual for setup).

Care & Cleaning

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

CAUTION! Do not use solvents, alcohol, or abrasive cleaners. Never spray liquids directly on unit.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. ICES-003: Complies with Canadian EMI regulations. 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/ignition	Check fuse (10A), verify red/yellow wire connections, ensure ignition is on.
No sound from speakers	Speaker wiring	Check speaker connections, verify speaker impedance (4-8 ohms).
CD won't play	Disc format/damage	Ensure disc is compatible format (CD-DA, MP3, WMA), clean disc surface.
Poor radio reception	Antenna connection	Check antenna cable connection, extend antenna fully, select LOCAL mode.
Faceplate won't attach	Alignment/obstruction	Ensure clean connectors, align properly, press firmly until click.
Remote not working	Batteries/obstruction	Replace batteries (CR2025), point directly at front panel, remove obstacles.

Reset: Disconnect battery for 5 minutes to reset unit memory.

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