relay for dvd lcd auto off ? which? how?

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=34572
Printed Date: July 06, 2025 at 11:26 PM

Topic: relay for dvd lcd auto off ? which? how?

Posted By: bbmon
Subject: relay for dvd lcd auto off ? which? how?
Date Posted: June 25, 2004 at 3:24 PM

Hi.. I need a setup like below...

I just got an indash dvd and indash lcd screen and another headrest screen for my van.

I want two screens shut off automatically when I turn off the dvd.

what type of relay Do I need. and what is the best place to get them for a reasonable price. any specific power/current ratings for this type of relay?

another question

If I decide not to use a relay then, to what wire should I connect the dvd and lcds power wires 12v constant or 12v acc. and what is the best way to connect them. at the fuse or tap in to cigarrete lighter or something..

sorry I'm new to this and car electronics so pardon If something doesn't make sense in my post.

Replies:

Posted By: auex
Date Posted: June 25, 2004 at 4:50 PM

Does the dvd player have a remote turn on lead coming from the wiring harness?

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: bbmon
Date Posted: June 25, 2004 at 9:09 PM

yes it does.

Posted By: bbmon
Date Posted: June 27, 2004 at 12:00 PM

any suggestions..?? posted_image

Posted By: auex
Date Posted: June 28, 2004 at 3:46 PM

Wire a relay like the diagram below.
posted_image

-------------
Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Posted By: bbmon
Date Posted: June 28, 2004 at 9:12 PM

Thanks. But I'm still not sure about the following questions from original post

what type of relay Do I need. and what is the best place to get them for a reasonable price. any specific power/current ratings for this type of relay?

Is 12vdc 30amp spdt relay will work... That's the only one I see on radioshack.. If other than that where can I get it and what amps etc...

another question

If I decide not to use a relay then, to what wire should I connect the dvd and lcds power wires 12v constant or 12v acc.

also from your picture... how will my set up be... ? I'm guessing remote turn on led wire from dvd will be connected to terminal 86 and lcd screens power wire will be connected to terminal 30? I'm novice and learning so want to make sure before I blow up anything..