Just replaced LCD screen in Nav monitor!

[zboost]

Originally Posted by toadhall1248

It is unlikely that you have received two displays that are faulty, simply that the bordmonitor needs to be adjusted to bias the electronics correctly to provide a bright clear display with the correct viewing angle. These screens are not individual to each model. They are produced for a variety of LHD and RHD and must be adjusted to suit the vehicle. (normally done on the bordmonitor assembly line)
I have searched high and low without any real success on the internet to find a correct procedure for adjusting the bordmonitor but it seems the manufacturers consider it a state secret.
The only way I have been able to adjust my screen is trial and error. Use a dim environment and adjust the pots one at a time to see the effect while viewing the screen in a mirror.
There is a partial description of how to do this by TEXASPAUL on Bimmerboard.com Adjusting 16x9 BoardMonitor (Very Long)
Good luck, and if you do come up with a decent method, please post it back here.

Thank you for the tip and the link. I've been wondering for months what's the "culprit" with the dim replacement screens. Now I get it, you need to adjust the potentiometers when you put new screen.
Anyway I've managed to just restore the blue to mine original screen. It had yellow haze, all I did is take the monitor out and clean and reseat the ribbon cables. Hopefully it will last and will not replace for now.