I recently acquired a 7″ headrest LCD monitor which I believe to be from, or the same as, those fitted in some Ford Mondeo Mk3 models and some Renault vehicles. I will be converting this to fit my Peugeot 406.
This is usually connected via a control box under the centre console to a DVD player in the boot along with the stereo and possibly other devices in the vehicle.
The monitor I’ve got was cut out of the previous vehicle so there’s no connector on the end of it, only bare wires. After taking the unit apart it appears someone else has tried to figure out the wiring and failed which has burnt up some of the tracks on the circuit board. I have repaired this damage. Now, for many many hours on the internet I have identified the correct screen (all except the part number) and with some investigation with a multimeter, and from matching up with a control box from a Renault system which I believe is identical. I have found the pinout. When taking the unit apart, the connection is CN1 and with pins numbered from left to right as follows:
||XSDA I2C data bus
||XSCL Sync Clock I2C
||5V IR Power In
||12V LCD Power
||Video In (presumably CVBS)
The information was adapted from this service guide for a “Renault Multimedia Control Module4” which is believed to be the same unit used in the Ford system and is made by Visteon, although the pins I have worked out myself match up, I cannot guarantee that all the others are correct so cannot accept responsibility if you damage your screen with this information.
At present, I have not got the screen to turn on as apparently this is only possibly using the original remote control which I do not have. It is also believed that the ‘power on’ signal is received by the IR sensor on the screen, sent to the control module (which I do not have) and then back to the screens over the I2C bus telling it to turn on so it may not be easily possible to use this screen without it’s intended controller.
I hope this information will nevertheless be of use to anyone else trying to reuse one of these screens for something other than it’s intended use.
Also if it is of any use to anyone, the DVD player that would have originally been used with this system is believed to be a “Visteon MB-8000”