This is a manual for a tape recorder. It introduces the use of the tape recorder's safety charging, playback, stop, repeat time switching, manual playback, and automatic playback functions.
This manual explains the safety charging function of the BK-866, how to insert batteries, and precautions to avoid damage. It also describes the various operation modes, including manual playback, automatic playback, and fast forward/rewind functions.
The document lists component names, button functions, and detailed specifications such as power supply voltage, headphone impedance, and audio format. Service contact information and warranty details are provided at the end. This manual is written in Chinese.
| Power Supply Voltage | DC 6 V |
|---|---|
| Power Supply Current | 450 nA |
| Headphone Impedance | 160 Ω |
| Headphone Rated Power | 10 nW |
| Speaker Impedance | 40 Ω |
| Speaker Rated Power | 0.25 W |
| Maximum Playback Duration | 240 seconds |
| Audio Channel Format | Mono |
The BK-866 has a safety charging function that stops charging automatically when the battery is full.
It uses AA batteries (4.5 V) that must be inserted correctly before operation.
Use the switch on the left side of the device to select long‑play (up to 240 s) or short‑play mode.
Yes, you may connect an external 220 V AC source or use the built‑in battery, but do not mix power sources.