User Manual for Grundig Mini GM400 Super Compact AM/FM Shortwave Radio

Introduction

This manual provides comprehensive instructions for the operation and maintenance of your Grundig Mini GM400 Super Compact AM/FM Shortwave Radio. Please read this manual thoroughly before using the device to ensure proper function and longevity.

Important Safety Information

• Do not expose the radio to extreme temperatures, direct sunlight, or high humidity.
• Avoid dropping or subjecting the radio to strong impacts.
• Do not attempt to disassemble or modify the radio. This will void the warranty and may cause damage.
• Use only the specified battery type (2 AAA batteries) and ensure correct polarity.
• Remove batteries if the radio will not be used for an extended period.
• Keep out of reach of small children.

Product Overview

Familiarize yourself with the components of your Grundig Mini GM400 radio.

Figure 1: Front view of the Grundig Mini GM400 radio. The radio is black with a rectangular shape. A telescopic antenna is extended from the top left. The digital display is prominent at the top center, showing '523'. Below the display is a circular speaker grille. On the right side, there are several circular buttons labeled 'POWER', 'ALARM', 'TIME', 'MIN', and 'HOUR'. The brand 'GRUNDIG' is printed at the bottom left, and 'M400' is at the bottom right.

Controls and Features

• Telescopic Antenna: For FM and Shortwave reception.
• Digital Display: Shows frequency, time, and alarm activation.
• Speaker: Integrated speaker for audio output.
• Power Button: Turns the radio on/off.
• Alarm Button: Activates and sets the alarm.
• Time Button: Sets the current time.
• Min/Hour Buttons: Adjusts minutes and hours for time and alarm settings.
• Tuning Dial: (Analog tuner) Located on the side, used to select radio frequencies.
• Band Selector Switch: (FM/AM/SW1/SW2) Located on the side, selects the desired frequency band.
• 3.5 mm Headphone Output: For private listening.
• DC Input (5V): For external power supply (adapter not included).

Setup

Battery Installation

1. Locate the battery compartment cover on the back of the radio.
2. Slide or lift the cover to open the compartment.
3. Insert two (2) AAA batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
4. Close the battery compartment cover securely.

Initial Power On

Press the POWER button to turn on the radio. The digital display will illuminate.

Operating Instructions

Tuning to a Station

1. Extend the telescopic antenna for optimal FM and Shortwave reception.
2. Use the Band Selector Switch on the side to choose between FM, AM, SW1, or SW2 bands.
3. Rotate the Tuning Dial (analog tuner) on the side to scan for stations. The digital display will show the approximate frequency.
4. Adjust the tuning dial finely until the desired station is clear.

Setting the Clock

1. With the radio off, press and hold the TIME button.
2. While holding TIME, press the HOUR button to adjust the hour.
3. While holding TIME, press the MIN button to adjust the minute.
4. Release the TIME button to save the setting.

Setting the Alarm

1. With the radio off, press and hold the ALARM button.
2. While holding ALARM, press the HOUR button to adjust the alarm hour.
3. While holding ALARM, press the MIN button to adjust the alarm minute.
4. Release the ALARM button to save the setting. The alarm icon will appear on the display.
5. To disable the alarm, press the ALARM button once when the radio is off. The alarm icon will disappear.

Using Headphones

Plug 3.5 mm headphones into the headphone jack located on the side of the radio for private listening. The internal speaker will automatically mute.

Maintenance

Cleaning

Wipe the radio with a soft, dry cloth. Do not use abrasive cleaners or solvents.

Battery Replacement

Replace batteries when the display dims or audio quality deteriorates. Refer to the 'Battery Installation' section for instructions.

Troubleshooting

Specifications

• Model: NGM400B
• Dimensions: 0.47 x 2.75 x 4.33 inches
• Weight: 3.2 ounces (0.2 pounds)
• Bands: AM/FM-stereo, Shortwave (SW1, SW2)
• Tuner: Analog with Digital Display
• Power Source: 2 x AAA batteries (not included) or DC input (5V)
• Connectivity: 3.5 mm Headphone Output
• Included Accessories: Owner's manual, warranty card, carrying case, earphones

Warranty and Support

Your Grundig Mini GM400 radio comes with a manufacturer's warranty. Please refer to the included warranty card for specific terms and conditions.

For technical support or service inquiries, please visit the official Eton website or contact their customer service department. Contact information can typically be found on the warranty card or product packaging.

Online resources may be available at: www.etoncorp.com