Key facts
- Brand
- Sampo
- Model
- MK-F21D
- Category
- MP3 Player
- Industry
- Electronics
- Documents
- 3
- Languages
- JA · ZH
- Last added
- 2012-03-27
Start here
Sampo MK-F21D User Manual
This manual explains how to operate the Sampo MK-F21D, including power‑on procedures, volume adjustment, playback modes for MP3 and FM, and navigation through the menu using the five‑direction control keys. It also covers SD card and USB functions, battery installation, and LCD display settings.
The guide includes safety precautions, troubleshooting steps for common issues such as overheating, and service contact information for authorized repair. Package contents and specifications such as power consumption and audio bitrate are listed for reference. This manual is written in Japanese.
Sampo MK-F21D specifications
| Weight | ≈50 g |
|---|---|
| Dimensions (W × D × H) | 93 mm × 38 mm × 21 mm |
| Power Supply | DC 1.2 V rechargeable battery or DC 1.5 V (AA) |
| FM Reception Range | 88‑108 MHz |
| Frequency Response | 40 Hz – 20 kHz (+0 dB, –6 dB) |
| Output Power | 4.45 mW + 4.45 mV into 32 Ω (3.5 mm jack) |
| Playback Time (alkaline battery) | ≈10 hours |
| Supported Sample Rates | 32 kHz, 44.1 kHz, 48 kHz |
| Supported Bitrates | 8 kbps – 320 kbps (recommended 128 kbps) |
All Sampo MK-F21D documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I adjust the volume?
Press the left or right key to increase or decrease the volume.
How can I navigate the main menu?
Use the up or down key to move through the menu options.
How do I turn the MK-F21D on and off?
Press the power button for about three seconds; the screen will appear when turning on and the device powers down after three seconds when turning off.
How can I charge the device?
The player can use a rechargeable battery, and it will charge automatically when connected to a computer’s USB port.
How do I adjust the playback volume?
Press the up or down button to increase or decrease the volume.
How can I store FM radio channels for quick access?
Use the preset function to save channels; press the preset button after selecting a desired frequency.