Wiring Power Switch for inTOUCH MAX Screen...

We've just posted an updated version of the manual and installation guide for our ISIS Power inTOUCH MAX Touch Screen.  We are always trying to make our literature clearer and more user friendly.  Based on your feedback, we've cleaned up some of the text in the document and clarified a few things. 

You can download the new manual from our Reference Library at this link. 

The most significant change is that we added a diagram showing you how to wire in a switch to shut off power to the screen when you are not using the car.  The screen draws power when it is running so you need to shut it down to minimize the drain on the battery. 

Adding this switch is really easy.  You just need to get a Double-Pole, Single-Throw switch.  This kind of a switch is also called a DPST switch.  Here are a few links of places where you can get these types of switches. 

Here's one from Radio Shack.

Digikey has a big selection.   

You can even source these from Ebay. 

You can pick the switch that fits the layout for your car.  The only technical requirements are that it has to be rated for at least 12-volts and must be able to carry 5-amps. 

Once you have your switch, pick a convenient place in the data cable between the MASTERCELL and the inTOUCH MAX screen.  Open the looming and cut the Red and Yellow wires.  Strip them and connect them to the different poles of the switch.  It is important that you never allow the Red and Yellow wires to cross with each other.  This will severely damage your screen. 

The Yellow wire in the harness brings regulated power from the MASTERCELL to power the electronics on the screen and the back light.  The Red wire is the TX line for the data flowing to the screen.  To properly shut down the screen, both of these wires need to be disconnected. 

You can download a PDF of this application note from our Reference Library by clicking this link. 

Please give our technical support team at call at (847) 232-1991 if you have any questions with your ISIS Power install.