This manual explains how to install and configure the Sanyo TEL508 chord telephone, including battery installation, power supply connection, and LCD settings. It also covers basic operation such as dialing, answering, holding, and using the built‑in calculator function.
Safety precautions, fault‑diagnosis steps, and service information are provided to help users maintain reliable operation. The document ends with technical specifications and warranty details for the Taiwanese market. This manual is written in Chinese.
| Power supply | DC 9 V / 150 mA (inner positive, outer negative) |
|---|---|
| Display type | LCD with backlight |
In standby, press the “7” key, adjust the level, then confirm with the “免持” key.