Bimmerfest - BMW Forums - View Single Post - DIY - DVB-T Upgrade Cheap Option!
View Single Post
Old 01-11-2012, 06:47 AM
stuartjohn24 stuartjohn24 is offline
Officially Welcomed to the 'Fest
Location: Chippenham, Wiltshire, UK
Join Date: May 2011
Posts: 828
Mein Auto: BMW F01
This is the schematic for the circuit that switches the tuner on and off.

It is connected to terminal 30 via a fuse, and the switch input is connected to the power module. The ACC is switched to 12V when the key is in the ignition.

Q2 is a P-Channel MOSFET, it can be anything with a capacity of 10 or so amps, a low on resistance is ideal. Q1 can be any small signal N-Channel MOSFET few hundred mA at most.
Reply With Quote