digital dash illuminates green but no digits

[mirpur]

My digital dash will illuminate with a green background when I turn on the ignition but is not showing any digits eg no speed,rev,oil press,water temp etc
Any ideas what it could be, is there a specific wire which illuminates all the functions/digits

[Dom]

Check there is +12v going to the two black wires on the white plug with the ignition on and the three brown wires on the white plug are grounded.

[mirpur]

Will have a look later,why is it still illuminating the background green,surley if I had no 12v to it the dash would not illuminate at all

[Dom]

The three black wires supply power to different parts of the dash. One does the backlights if I remember rightly. Could be one of the wires has come loose.

[mirpur]

Cheers

[ordy]

check your bulbs m8,

[mirpur]

Is that the two main large bulbs

[mirpur]

got it sorted, the white plug had come loose, when i started the car with the dash not illuminated the car would not hold revs as soon a sthe dash was back to normal so was the idle, any ideas why this would happen

[Dom]

What car is it ?

[Dom]

The white plug supplies the excitation current for the alternator to start charging via the battery warning light so it may be with the white plug removed, the alternator wasn't giving out any power.