View Single Post
Old 03-29-2008, 07:23 PM   #3
pancit175
Maximum Bitrate
pancit175's CarPC Specs
 
Join Date: Jun 2005
Location: chicago, Illinois
Vehicle: 96 Talon
Posts: 633
My Photos: ()
NotYou is almost completely correct.
It also depends on the screen. Weather the screen automatically detects the camera when the signal is on, or if it uses a dedicated input wire to the reverse wire. If the screen does not have a reverse wire input, then NotYou is absolutely correct.
Also it may depend on the camera. Some cameras take a 1-3 sec to fully engage itself after power is given to it. Usually I like to give the camera acc power. That way there isnt as much of a delay after switching to it. But there may be a few things left to do if you don't have a reverse wire input.
When powering the camera to acc, the [releatively] easiest way to wire up the camera to a screen that uses signal sense is to interrupt the signal line with a relay, using a switch and the reverse wire, diode isolated from each other, to activate the signal.
__________________
" In the beginners mind there are many possibilities, but in the experts mind there are few. "- Shunryu Suzuki
"Do it right or don't do it at all"

PROGRESS:
[DONE&DONE] (Considering a redesign)
pancit175 is offline   Reply With Quote