This document is about the user manual of Portable CD Player, which introduces the controller position, playback mode selection, applicable functions, as well as the methods of connecting the CD player and using power.
This manual explains how to safely set up and use the Sony D‑EJ985 CD player. It covers safety precautions such as keeping the device away from rain and ensuring ventilation holes are not blocked, describes the controller layout, and details how to insert a CD, select playback modes (repeat, single, random) and use bookmarks.\n\nPower options are described, including the use of two Sony NH‑14WM rechargeable batteries (2.4 V) or two LR6 (AA) alkaline batteries (3 V), as well as AC adapter connections for various regional voltages. The specifications section lists the laser material, wavelength, frequency response, output levels, dimensions, weight and operating temperature, and the accessories appendix lists optional headphones, chargers and adapters. This manual is written in Chinese.
| Laser material | GaAIAs |
|---|---|
| Laser wavelength | 780 nm |
| Laser output | < 44.6 |
| Frequency response | 20 Hz – 20 kHz ±3 dB |
| Line output level | 0.7 V rms, 47 kΩ load |
| Headphone output | ≈ 5 mW, 16 Ω |
| Optical digital output level | -21 dBm to -15 dBm |
| Weight | ≈ 174 g |
| Operating temperature | 5 °C – 35 °C |
The player can be powered by two Sony NH‑14WM rechargeable batteries (2.4 V) or two LR6 (AA) alkaline batteries (3 V).