Question about JVC RX-D302 7.1 Channels Receiver
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Posted on Jan 02, 2017
The problem is actually the wiring. Check the installation manual, I guarantee the "pro" installer took a shortcut.
There are two power wires (yellow & red +) and a ground wire (black -).
Now, black goes to chassis grounding point. Easy.
Yellow goes to a live terminal in the fuse block for constant 12V.
This retains the settings and clock etc.
Red goes to an ACCESSORY terminal in the fuse block (so key must be turned to at least ACC to allow it to be switched on).
But in the case of my car, the idiot who installed it ran the red wire directly to the + battery terminal. That's wrong, and will drain the battery.
Google for an installation manual, I'm certain your JVC head units will be the same procedure.
Posted on Mar 03, 2013
Corrupted firmware. A firmware update is necessary. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Firmware update procedure to many popular brand electronic devices are given.
Posted on Jun 09, 2015
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