Infinity Alpha 100 User Manual

1. Introduction

Thank you for purchasing the Infinity Alpha 100 Digital Media Car Receiver. This unit is designed to provide high-quality audio entertainment and hands-free communication in your vehicle. It features Bluetooth connectivity for audio streaming and calls, USB and SD card playback, an AUX input, and an FM radio tuner. Please read this manual thoroughly before installation and operation to ensure proper use and to maximize your listening experience.

2. Safety Precautions

• Do not operate the unit in a manner that distracts you from driving. Always prioritize road safety.
• Ensure proper wiring and installation to prevent electrical shorts, fire, or damage to the vehicle's electrical system. Consult a professional if unsure.
• Avoid exposing the unit to extreme temperatures, direct sunlight, or excessive moisture.
• Do not attempt to disassemble or modify the unit. This may void the warranty and cause damage.
• Keep the volume at a level that allows you to hear outside sounds, such as emergency vehicles.

3. Package Contents

Verify that all items are present in the package:

• Infinity Alpha 100 Car Receiver Unit
• Wiring Harness
• Mounting Hardware (Screws, Mounting Sleeve)
• User Manual (this document)

Image: Infinity Alpha 100 receiver and its retail packaging, showing the compact size and branding.

4. Setup and Installation

4.1. Installation

The Infinity Alpha 100 is a standard single DIN receiver. Ensure your vehicle has a compatible single DIN opening. Professional installation is recommended.

1. Remove the existing car stereo from the dashboard.
2. Install the supplied mounting sleeve into the dashboard opening. Bend the tabs outward to secure it.
3. Connect the wiring harness as described in the next section.
4. Slide the Alpha 100 unit into the mounting sleeve until it locks into place.
5. Attach the detachable faceplate.

4.2. Wiring Connections

Carefully connect the wiring harness to your vehicle's electrical system. Refer to your vehicle's wiring diagram for specific wire functions. Incorrect wiring can cause damage to the unit or vehicle.

• Yellow Wire (Constant 12V): Connect to a constant 12V power source (battery).
• Red Wire (Accessory 12V): Connect to a switched 12V power source (ignition).
• Black Wire (Ground): Connect to a good chassis ground point.
• Blue Wire (Antenna/Amp Remote): Connect to power antenna or amplifier remote turn-on lead.
• Speaker Wires: Connect to your vehicle's speakers (e.g., White/White-Black for Front Left, Gray/Gray-Black for Front Right, Green/Green-Black for Rear Left, Purple/Purple-Black for Rear Right). Ensure correct polarity.
• RCA Outputs (L-CH, R-CH): For connecting external amplifiers.
• Antenna Input: Connect your vehicle's FM antenna.

Image: Rear view of the Infinity Alpha 100, illustrating the main wiring harness connector, RCA outputs for external amplifiers, and the antenna input.

5. Operating Instructions

5.1. Front Panel Controls

Image: Front panel of the Infinity Alpha 100 car receiver, highlighting the central display, rotary knob, and various control buttons for mode, track, and settings.

• Power Button (PWR): Press to turn the unit ON/OFF.
• MODE Button: Press to cycle through available audio sources (FM, Bluetooth, USB, SD, AUX).
• Volume Knob (SELECT): Rotate to adjust volume. Press to access audio settings.
• BND (Band) Button: In FM mode, press to switch between FM bands (FM1, FM2, FM3).
• AMS (Automatic Memory Store) Button: In FM mode, press and hold to automatically scan and store strong stations.
• DISP (Display) Button: Changes display information (e.g., clock, track time).
• Mute Button (MU): Mutes/unmutes audio output.
• Track Skip Buttons (◀◀ / ▶▶): Skips tracks in media playback; seeks stations in FM mode.
• Numeric Preset Buttons (1-6): In FM mode, short press to recall stored stations; long press to store current station. In media playback, may have other functions (e.g., INT for Intro Scan, RPT for Repeat, RDM for Random).
• EQ Button: Cycles through preset equalizer settings.
• LOUD Button: Toggles loudness compensation ON/OFF.
• AUX Input: 3.5mm jack for external audio devices.
• USB Port: For USB flash drives.
• SD Card Slot: For SD memory cards.

5.2. Bluetooth Operation

1. Pairing: Turn on the unit. On your mobile device, enable Bluetooth and search for available devices. Select "ALPHA100" (or similar name) from the list. If prompted for a password, enter "0000".
2. Audio Streaming: Once paired, you can stream audio from your device to the Alpha 100. Use the track skip buttons on the unit or your device to control playback.
3. Hands-Free Calling: When a call comes in, the phone number will be displayed. Press the answer button (often the Play/Pause or a dedicated call button) on the unit to answer. Use the built-in microphone for conversations.

5.3. USB/SD Playback

Insert a USB flash drive into the USB port or an SD card into the SD card slot. The unit will automatically switch to USB/SD mode and begin playing compatible audio files (e.g., MP3). Use the track skip buttons to navigate through songs.

5.4. FM Radio Operation

1. Press the MODE button until FM mode is selected.
2. Press the BND button to select FM1, FM2, or FM3 band.
3. Manual Tuning: Short press the track skip buttons (◀◀ / ▶▶) to fine-tune the frequency.
4. Automatic Seek: Long press the track skip buttons to automatically seek the next strong station.
5. Storing Presets: Tune to your desired station, then long press one of the numeric preset buttons (1-6) to store it.
6. Recalling Presets: Short press a numeric preset button to recall a stored station.

5.5. Audio Settings

Press the SELECT (volume) knob to cycle through audio settings. Rotate the knob to adjust the values.

• BASS: Adjusts low-frequency sound.
• TREBLE: Adjusts high-frequency sound.
• BALANCE: Adjusts audio output between left and right speakers.
• FADER: Adjusts audio output between front and rear speakers.
• LOUD: Toggles loudness compensation (boosts bass and treble at low volumes).
• EQ: Selects preset equalizer curves (e.g., Pop, Rock, Classic, Flat).
• DSP: Digital Signal Processing options (if available).
• STEREO/MONO: For FM radio, switches between stereo and mono reception.

6. Maintenance

• Cleaning the Unit: Use a soft, dry cloth to wipe the unit's surface. For stubborn stains, dampen the cloth lightly with water. Do not use abrasive cleaners or solvents.
• Detachable Faceplate: Handle the faceplate carefully. Store it in a protective case when detached to prevent scratches or damage.
• USB/SD Ports: Keep the ports free of dust and debris.

7. Troubleshooting

If you encounter issues with your Infinity Alpha 100, refer to the following common problems and solutions:

If the problem persists after trying these solutions, please contact customer support.

8. Specifications

• Product Dimensions: 7 x 5 x 3 inches
• Item Weight: 1.56 pounds
• Power Supply: 12V DC On-Board Network
• Fuse Rating: 10A
• Rated Output Power: 4 x 50W Peak
• Recommended Speaker Impedance: 4 Ohms
• Frequency Response: 20 Hz - 20 kHz
• Signal to Noise Ratio: 70dB
• Connectivity: Bluetooth, USB, SD, AUX (3.5mm Jack)
• Wireless Communication Technologies: Bluetooth
• Special Features: FM Tuner, Detachable Faceplate
• Compatible Devices: Smartphone, Tablet, External Audio Device
• Audio Output Mode: Stereo
• Surround Sound Channel Configuration: 2.0

9. Warranty and Support

The Infinity Alpha 100 comes with a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions, including coverage period and limitations. For technical support, service, or warranty claims, please contact Infinity customer service through their official website or the contact information provided in your product packaging.

For additional information or to register your product, visit the official Infinity website: www.infinityspeakers.com