This document is about safety warnings. It mainly introduces the precautions that need to be taken when using the product to avoid dangers such as fire, electric shock, and accidents. The warnings include precautions related to the use of components, installation location, power cord, obstructed operation, ventilation, etc.
This guide explains how to safely install Sony CDX‑M770X and MDX‑M870X car CD/MD players. It lists the required mounting hardware, safety precautions, and the need to use only the supplied screws and brackets.
The document provides detailed wiring diagrams, connection examples for front and rear speakers, power and antenna cables, and instructions for removing and re‑installing the front panel. It also covers fuse selection, reset procedures, and troubleshooting tips such as checking connections and fuse status. This manual is written in Japanese.
| Operating voltage | DC12V (negative‑earth) |
|---|---|
| Maximum allowed current (power antenna) | 0.3 A |
| Maximum allowed current (accessory power) | 0.1 A |
The unit must be powered with DC 12 V negative‑earth; using a higher voltage such as 24 V can cause fire.
Check that the black (ground) wire is connected first, verify the fuse is correct, and ensure the ignition key is OFF before reconnecting power.