Grundig GPR1090 GRB 3000 BT Portable Radio Boombox User Manual

1. Introduction

Thank you for choosing the Grundig GPR1090 GRB 3000 BT Portable Radio Boombox. This device combines a classic FM radio with modern connectivity options including Bluetooth, CD playback, and USB media support. This manual provides essential information for safe operation, setup, and maintenance of your new boombox. Please read these instructions carefully before use and retain them for future reference.

2. Safety Instructions

• Power Source: Ensure the power supply voltage matches the rating label on the unit.
• Ventilation: Do not block ventilation openings. Allow sufficient space around the unit for proper airflow.
• Water and Moisture: Do not expose the unit to rain, moisture, or dripping/splashing liquids. Keep away from objects filled with liquids, such as vases.
• Heat: Do not place the unit near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Cleaning: Unplug the unit from the power outlet before cleaning. Use a dry cloth only.
• Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
• Batteries: If using batteries, ensure they are inserted with correct polarity. Do not mix old and new batteries, or different types of batteries. Remove batteries if the unit is not used for a long period.

3. Package Contents

Please check that all items are present:

• Grundig GPR1090 GRB 3000 BT Portable Radio Boombox
• AC Power Cord
• User Manual (this document)

4. Product Overview

Familiarize yourself with the controls and features of your boombox.

Image 1: Close-up view of the Grundig GPR1090 GRB 3000 BT control panel, showing the volume knob, display, and various function buttons.

Control Panel Features:

• Volume Knob: Rotate to adjust the audio output level.
• ON Indicator: Illuminates when the unit is powered on.
• Display: Shows current mode, frequency, track number, and other relevant information.
• MEM (Memory) Button: Used to store and recall FM radio presets.
• DOWN / UP Buttons (Tuning/Track): Used for tuning radio frequencies or navigating tracks on CD/USB.
• Play/Pause Button: Controls playback for CD, USB, and Bluetooth audio.
• SEL (Select) Button: Confirms selections in menus or settings.
• DN / ALBUM Buttons: Used for navigating folders/albums on USB or for specific functions in other modes.
• MODE / INFO Button: Switches between different operating modes (FM, CD, Bluetooth, USB) and displays information.
• Power Button: Turns the unit on or off.

5. Setup

5.1 Power Connection

• AC Power: Connect the supplied AC power cord to the AC inlet on the back of the unit and then to a wall outlet.
• Battery Power: For portable use, open the battery compartment on the bottom of the unit and insert 6 x C-size batteries (not included), ensuring correct polarity. Close the compartment securely.

5.2 Antenna Setup

For optimal FM radio reception, fully extend the telescopic antenna. Adjust its position for the best signal.

6. Operating Instructions

6.1 Power On/Off

Press the Power Button to turn the unit on or off. The ON indicator will light up when the unit is on.

6.2 FM Radio Operation

1. Press the MODE / INFO Button repeatedly until "FM" appears on the display.
2. Automatic Tuning: Press and hold the DOWN or UP buttons to automatically scan for the next available station.
3. Manual Tuning: Briefly press the DOWN or UP buttons to fine-tune the frequency step by step.
4. Saving Presets (10 channels):
   1. Tune to the desired station.
   2. Press the MEM Button. The display will show a flashing preset number.
   3. Use the DOWN or UP buttons to select the desired preset number (1-10).
   4. Press the MEM Button again to confirm and save the station.
5. Recalling Presets: Briefly press the MEM Button, then use the DOWN or UP buttons to select a saved preset.

6.3 CD Player Operation

The integrated CD player supports CD-DA, MP3, and WMA formats on CD-RW discs.

1. Press the MODE / INFO Button repeatedly until "CD" appears on the display.
2. Open the CD compartment cover.
3. Place a CD with the label side facing up. Close the CD compartment cover securely.
4. The unit will read the disc, and playback will start automatically.
5. Use the Play/Pause Button to pause or resume playback.
6. Use the DOWN or UP buttons to skip tracks. Press and hold to fast forward/rewind.
7. For MP3/WMA CDs with folders, use the ALBUM or DN buttons to navigate between folders.

6.4 Bluetooth Streaming (V5.0)

1. Press the MODE / INFO Button repeatedly until "BT" or "Bluetooth" appears on the display. The unit will enter pairing mode, indicated by a flashing Bluetooth icon or message.
2. On your Bluetooth-enabled device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
3. Select "GRUNDIG GPR1090" (or similar) from the list of devices.
4. Once paired, the unit will confirm the connection, and you can start playing audio from your device.
5. Use the playback controls on your connected device or the Play/Pause and DOWN/UP buttons on the boombox to control playback.

6.5 USB Playback

The unit features a USB 2.0 connection for playing MP3 and WMA files from a USB flash drive.

1. Insert a USB flash drive into the USB port.
2. Press the MODE / INFO Button repeatedly until "USB" appears on the display.
3. The unit will automatically detect and start playing compatible audio files.
4. Use the Play/Pause Button to pause or resume playback.
5. Use the DOWN or UP buttons to skip tracks. Press and hold to fast forward/rewind.
6. Use the ALBUM or DN buttons to navigate between folders on the USB drive.

7. Maintenance

• Cleaning: Disconnect the power before cleaning. Use a soft, dry cloth to clean the exterior of the unit. Do not use abrasive cleaners or solvents.
• CD Lens Care: If the CD player experiences reading errors, use a commercially available CD lens cleaner disc to clean the lens.
• Storage: When not in use for extended periods, store the unit in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if storing for a long time.

8. Troubleshooting

9. Specifications

10. Warranty and Support

Grundig products are designed for reliability and performance. For warranty information, please refer to the warranty card included with your purchase or visit the official Grundig website.

For technical support, troubleshooting assistance, or service inquiries, please contact Grundig customer service through their official channels. Keep your proof of purchase for warranty claims.