The Sony WM-FX481 Walkman is a portable radio‑cassette player with FM/AM reception. This manual provides safety precautions, battery installation steps, and basic handling guidelines to keep the device operating reliably.
Detailed sections explain how to operate the tape playback functions, tune and preset radio stations, use auxiliary features such as Mega Bass and the Automatic Volume Limiter System, and perform routine cleaning and troubleshooting.
| Frequency range (FM) | 87.5 – 108 MHz |
|---|---|
| Frequency range (AM) | 530‑1710 kHz (North, Central and South America) / 531‑1602 kHz (Other countries) |
| Power requirements | 3 V DC, 2 AA (R6) batteries |
| Dimensions (W × H × D) | ≈ 91.2 × 114.8 × 35.5 mm |
| Mass | ≈ 150 g (main unit only) |
| Battery life (tape playback) | ≈ 32 hours |
| Battery life (radio reception) | ≈ 40 hours |
Open the battery compartment lid, insert two R6 (AA) dry batteries with the correct polarity, and replace them when the “=” symbol flashes on the display.
Use the cleaning cassette CHK‑1W/C‑1KW (not supplied) every 10 hours of use, following the instructions in the maintenance section.
Set the HOLD switch in the direction of the “>” mark; this locks the radio operation, MENU, and SET buttons.