M-670V is a portable tape recorder from Sony. It can be powered by two R03 (size AAA) batteries. When the battery level is low, the REC/BATT lamp will dim and the E lamp will flash.
This manual explains how to prepare power sources for the Sony M-670V, including using two R03 (AAA) batteries or the optional AC‑E30HG power adaptor. It covers basic operation such as inserting a standard MC‑30 microcassette, selecting tape speed, recording with the built‑in or external microphone, and playback controls.
The guide also details maintenance procedures, troubleshooting tips, and the technical specifications of the unit, such as tape speed options, frequency response, power output, and dimensions. Safety precautions and proper handling of the device are included to ensure reliable performance.
| Tape speed | 2.4 cm/s, 1.2 cm/s |
|---|---|
| Frequency range | 300 – 4000 Hz (2.4 cm/s) |
| Dimensions (W×H×D) | ≈ 54.8 × 106.8 × 21.5 mm |
| Mass (main unit) | ≈ 92 g |
| Speaker diameter | ≈ 2.8 cm |
| Microphone input sensitivity | 0.2 mV for ≤ 3 kΩ microphone |