reported earlier HUD does not power down when turning off MMC switch

[TorsteinE]

The HUD comes on with main/external power after toggling MMC power to on, but does not turn off again.

To recreate, spawn cold and dark, supply power through engine start or external power, cycle power to MMC on and off and observe HUD remaining powered.

[BIGNEWY]

Hi TorsteinE 

I already have this issue reported internally but thank you any way for the report. 

Just to add a explanation here 

If the HUD has at least DC power but MMC is not engaged it should show a test pattern, if the MCC is engage and has power the symbology should be normal.

its a small tweak for the future 

thank you