1. Introduction
The Sangean DT-250 is a compact and versatile portable AM/FM radio designed for on-the-go listening. Featuring digital tuning, 19 memory presets, and Dynamic Bass Boost (DBB), this radio delivers clear audio in a small package. This manual will guide you through the setup, operation, and maintenance of your DT-250 radio.
Image 1.1: Front view of the Sangean DT-250 radio.
2. Product Overview
Familiarize yourself with the various parts and controls of your Sangean DT-250 radio.
Image 2.1: Detailed view of the Sangean DT-250 front panel controls.
- LCD Display: Shows frequency, time, battery indicator, and preset number.
- Tuning Buttons (Up/Down): Adjust frequency or navigate presets.
- MEMO Button: Used for storing and recalling station presets.
- BAND Button: Switches between AM and FM bands.
- Power/Volume Dial: Located on the top edge, controls power and volume.
- DBB Switch: Located on the side, activates Dynamic Bass Boost.
- Headphone Jack: 3.5mm stereo jack for headphones or external FM antenna.
- Speaker: Built-in speaker for audio output.
- Battery Compartment: Located on the back, holds two AA batteries.
- Belt Clip: Removable clip for portability.
3. Setup
3.1. Battery Installation
The DT-250 requires two AA batteries for operation.
- Locate the battery compartment cover on the back of the radio.
- Slide the cover downwards and lift it off.
- Insert two AA (UM-3/R6) batteries, ensuring the correct polarity (+ and -) as indicated inside the compartment.
- Replace the battery compartment cover, sliding it upwards until it clicks into place.
Image 3.1: Back view showing battery compartment and belt clip.
3.2. Antenna Connection
- For FM reception, the connected headphones or earbuds act as the antenna. Ensure headphones are plugged into the headphone jack for optimal FM reception. An external wire antenna is also included and can be connected to the headphone jack if listening via the built-in speaker.
- For AM reception, the radio utilizes a built-in ferrite bar antenna. No external antenna is typically required. For best reception, rotate the radio for optimal signal strength.
4. Operating Instructions
4.1. Power On/Off and Volume Control
- To turn the radio ON, rotate the volume dial (located on the top) clockwise.
- To adjust the volume, continue rotating the dial.
- To turn the radio OFF, rotate the volume dial counter-clockwise until it clicks.
4.2. Band Selection (AM/FM)
Press the BAND button to switch between AM and FM frequency bands. The selected band will be displayed on the LCD screen.
4.3. Tuning to Stations
- Manual Tuning: Press the Tuning Up (▲) or Tuning Down (▼) buttons briefly to adjust the frequency step by step.
- Auto Scan Tuning: Press and hold the Tuning Up (▲) or Tuning Down (▼) buttons for a few seconds. The radio will automatically scan and stop at the next strong station.
4.4. Setting and Recalling Presets
The DT-250 allows you to store up to 19 favorite stations (a mix of AM and FM).
To Store a Station:
- Tune to the desired station using manual or auto scan tuning.
- Press and hold the MEMO button until the preset number flashes on the display.
- Use the Tuning Up (▲) or Tuning Down (▼) buttons to select the desired preset number (1-19).
- Press the MEMO button again to confirm and save the station.
To Recall a Stored Station:
- Briefly press the MEMO button. The preset number will appear.
- Use the Tuning Up (▲) or Tuning Down (▼) buttons to cycle through the stored presets.
4.5. Dynamic Bass Boost (DBB)
The DBB feature enhances the bass response for a richer audio experience. Locate the DBB switch on the side of the radio and slide it to the ON position to activate or OFF to deactivate.
4.6. Speaker and Headphone Output
The DT-250 features both a built-in speaker and a 3.5mm headphone jack. When headphones are plugged in, audio will automatically switch from the speaker to the headphones. Unplugging the headphones will revert audio to the speaker.
5. Maintenance
5.1. Cleaning
- Wipe the radio's exterior with a soft, slightly damp cloth.
- Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the finish.
- Avoid getting moisture into any openings.
5.2. Battery Care
- Replace batteries when the low battery indicator appears on the LCD or when audio quality degrades.
- Remove batteries if the radio will not be used for an extended period to prevent leakage and damage.
- Dispose of used batteries responsibly according to local regulations.
5.3. Storage
Store the radio in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Batteries are dead or incorrectly inserted. | Replace batteries with new ones, ensuring correct polarity. |
| Poor FM reception | Headphones not connected or external antenna not properly positioned. | Ensure headphones are fully plugged in or adjust the position of the external FM antenna. |
| Poor AM reception | Interference or radio not optimally positioned. | Rotate the radio for better signal. Move away from electronic devices that may cause interference. |
| No sound from speaker | Headphones are plugged in. | Unplug headphones to enable speaker output. |
7. Specifications
- Model: DT-250
- Brand: Sangean
- Tuner Type: Digital PLL Synthesized Receiver
- Radio Bands: AM, FM
- Memory Presets: 19 (Mixed AM/FM)
- Special Features: Dynamic Bass Boost (DBB), Built-in Speaker, Headphone Jack
- Power Source: 2 x AA Batteries (UM-3/R6)
- Display Type: LCD
- Product Dimensions (L x W x H): 1.18" x 2.52" x 3.94" (30mm x 64mm x 100mm)
- Item Weight: 0.11 Kilograms (approx. 3.88 oz)
- Material: Metal enclosure
- Included Components: Radio, Headphones, External FM Wire Antenna, Belt Clip
- Manufacturer Part Number: SG0033
- Global Trade Identification Number (GTIN): 04711317990910
8. Warranty Information
Sangean products are manufactured to high quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Sangean website. Keep your purchase receipt as proof of purchase for any warranty claims.
9. Support
If you encounter any issues not covered in this manual or require further assistance, please contact Sangean customer support. Contact details can typically be found on the official Sangean website or on the product packaging.