CHOYONG LC90 Multi-Band Smart Internet Radio Instruction Manual

1. Introduction

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your CHOYONG LC90 Multi-Band Smart Internet Radio. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize your listening experience. The LC90 is a versatile radio capable of receiving over 40,000 internet radio stations via Wi-Fi or 4G SIM card, as well as traditional FM, LW, MW, and Shortwave (SSB) broadcasts. It also features Bluetooth connectivity and TF card support for local media playback.

2. Safety Information

To ensure safe operation and prevent damage, please observe the following precautions:

• Do not expose the radio to extreme temperatures, direct sunlight, or high humidity.
• Avoid dropping or subjecting the device 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 charging cable and power adapter.
• Keep the device away from water or other liquids.
• Ensure proper ventilation when operating the radio.

3. Product Overview and Setup

3.1 Package Contents

The CHOYONG LC90 package includes:

• CHOYONG LC90 Multi-Band Smart Internet Radio
• Owner's Manual

3.2 Physical Features

Figure 3.2.1: Front view of the CHOYONG LC90 radio with its telescopic antenna extended, showing the display, keypad, and control knobs.

The LC90 features a compact design with a black finish. It includes a clear IPS LCD display, a numeric keypad, and various function buttons for easy navigation. On the side, you will find tuning, fine-tuning, and volume control knobs. The radio is equipped with a telescopic antenna for traditional radio reception.

Figure 3.2.2: Diagram showing the dimensions of the CHOYONG LC90 radio: 7.87 inches (length), 1.57 inches (width), and 4.8 inches (height).

The radio measures approximately 7.87 inches in length, 1.57 inches in width, and 4.8 inches in height, making it portable and easy to handle. It weighs about 1.41 pounds.

3.3 Initial Setup and Charging

Before first use, ensure the radio is fully charged. The LC90 is powered by a 5000mAh Lithium Polymer battery. Connect the provided Type-C charging cable to the radio and a suitable power source. A full charge typically takes several hours.

To insert a TF (Micro-SD) card (maximum 32GB supported), locate the TF card slot on the side of the radio and gently push the card in until it clicks into place. This allows for local music playback.

3.4 Connecting to Wi-Fi

The LC90 supports 2.4GHz Wi-Fi for internet radio access. To connect:

1. Power on the radio.
2. Navigate to the settings menu.
3. Select "Wi-Fi" and choose your desired network from the list.
4. Enter the Wi-Fi password using the keypad.
5. Confirm the connection.

3.5 Using a 4G SIM Card

For internet access on the go, the LC90 supports 4G SIM cards (FDD Band2/3/4/5; TDD Band38/39/40/41). To insert a SIM card:

1. Locate the SIM card slot on the radio.
2. Carefully insert the 4G SIM card into the slot until it is securely in place.
3. The radio should automatically detect the network.

Figure 3.5.1: An illustration detailing the various networking methods supported by the CHOYONG LC90, including 4G SIM card, 2.4G Wi-Fi, and E-SIM card options.

4. Operating Instructions

4.1 Internet Radio and Podcasts

The LC90 provides access to over 40,000 internet radio stations and approximately 10 million podcast episodes, including content from Spotify and Apple Podcasts. Stations are categorized by continent, country, province, city, type, and popularity.

Figure 4.1.1: Overview of the CHOYONG LC90's key features, emphasizing its extensive internet radio capabilities, multi-band support, voice search, and high-quality audio output.

Figure 4.1.2: A comprehensive list of features for the CHOYONG LC90, detailing its various radio bands, connectivity options, display, and audio capabilities.

You can bookmark your favorite stations for quick access. The radio also supports direct searching for stations and podcasts on the Choyong website, which can then be pushed to your device.

4.2 Voice Search Stations via GPT

The LC90 features fast and accurate voice search functionality powered by GPT, allowing you to find radio stations and podcasts by speaking commands. This feature is available with firmware version 4.7 and above.

Figure 4.2.1: A visual representation of the voice search feature, demonstrating how users can quickly find radio stations using spoken commands powered by GPT technology.

4.3 Multi-Band Radio (FM, LW, MW, SW, SSB)

In addition to internet radio, the LC90 can receive traditional radio broadcasts across multiple bands:

• FM: Frequency Modulation band.
• LW: Longwave band.
• MW: Mediumwave band (AM).
• SW: Shortwave band, including Single Side Band (SSB) reception (USB/LSB).

The radio allows for adjustment of reception bandwidth, displays signal strength (SNR), and supports external antenna connections for improved reception.

Figure 4.3.1: A detailed overview of the CHOYONG LC90's multi-band radio performance features, highlighting its tuning capabilities, signal indicators, and SSB support.

Single Side Band (SSB) Operation

The LC90 supports SSB reception, allowing for clearer reception of certain shortwave broadcasts. To use SSB:

1. Switch to the SW band.
2. Activate SSB mode (refer to the on-screen menu or dedicated button).
3. Use the fine-tuning knob to precisely tune into the SSB signal for optimal clarity.

4.4 Bluetooth and TF Card Playback

The LC90 features Bluetooth 5.2 connectivity, allowing you to stream audio wirelessly from your smartphone or other Bluetooth-enabled devices. It also supports TF (Micro-SD) cards up to 32GB for playing local audio files in various formats (FLAC, WAV, APE, WMA, MP3, M4A).

Figure 4.4.1: An image illustrating the CHOYONG LC90's support for Bluetooth 5.2 and TF/Micro-SD card playback, detailing compatible audio formats and management features.

To connect via Bluetooth, enable Bluetooth on your external device and select "LC90" from the list of available devices. For TF card playback, ensure the card is inserted, then select the TF mode on the radio.

4.5 Additional Features

The LC90 includes several convenient features:

• Clock and Alarm: Set the current time and configure alarms for wake-up or reminders.
• Timer Playback: Schedule the radio to turn on or off at specific times.
• Key Backlighting: The keypad features backlighting for visibility in low-light conditions.
• Two-Way Speakers: Equipped with a mid-bass speaker, a silk dome tweeter, and a low-frequency diaphragm for clear and pleasant sound reproduction.

Figure 4.5.1: An internal view of the CHOYONG LC90's audio system, highlighting its bass driver, bass radiator, and silk dome tweeter for optimized sound quality.

Figure 4.5.2: A visual representation of the CHOYONG LC90's build quality and key components, such as its long-lasting battery, premium control knobs, and illuminated display and keyboard.

5. Maintenance

5.1 Cleaning and Care

To maintain your LC90 radio in optimal condition:

• Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Keep the device free from dust and debris, especially around the speaker grille and ports.
• Store the radio in a cool, dry place when not in use.

5.2 Firmware Updates (OTA Upgrade)

It is recommended to keep your LC90 radio's firmware updated to the latest version (e.g., 4.7 or newer) for optimal performance and new features. Over-The-Air (OTA) upgrades are supported.

To perform an OTA upgrade:

1. Insert a TF (Micro-SD) card with a capacity no larger than 32GB into the radio.
2. Ensure the radio is connected to Wi-Fi. You can confirm the connection by streaming radio stations.
3. Press the settings button. In the settings menu, select "Version Info" and follow the on-screen instructions.
4. Important: Once the upgrade begins, do not press any buttons! The radio will automatically restart after the upgrade is complete. The entire process typically takes 1-2 minutes.

6. Troubleshooting

This section addresses common issues you might encounter with your LC90 radio.

6.1 Radio Fails to Turn On (Low Voltage)

If your LC90 radio does not turn on due to low battery voltage, follow these steps:

1. Charge the radio for at least 3 hours to ensure it is fully charged.
2. Press and hold the power button for 30 seconds, then release it.
3. Afterward, press and hold the power button again for 5 seconds to restart.

6.2 Wi-Fi Connection Issues

If you are unable to connect to Wi-Fi:

• Ensure that your Wi-Fi network is 2.4GHz. The LC90 only supports 2.4GHz Wi-Fi.
• Check your router settings, particularly the encryption protocol section, to ensure it is set to WPA/WPA2, as the radio only supports WPA/WPA2.
• Verify that you have entered the correct Wi-Fi password.
• Try restarting both your radio and your Wi-Fi router.

6.3 Radio Freezes

If your LC90 radio experiences a freeze or becomes unresponsive:

Refer to the video above for a visual guide on how to resolve a frozen radio. Generally, a soft reset by holding the power button for an extended period (e.g., 30 seconds) can resolve this issue.

7. Specifications

8. Warranty and Support

The CHOYONG LC90 Multi-Band Smart Internet Radio comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or contact CHOYONG customer support directly.

If you require technical assistance or have questions not covered in this manual, please visit the official CHOYONG website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.

You can visit the CHOYONG Official Store on Amazon for more information and support resources.