Digital Dash Lights out

[MeanGene]

The digital dash light is out in my 88 t-bird. This is the one that tells you the speed and milage. How do you fix this? I can barely see the speed and nothing else. All other lights are working fine, and the dim ajustment is set correctly.

 

[MeanGene]

The problem was one little bulb. But, you have to pull the gage cluster to change it. Works like a charm now, installed the extra life bulb, don't want to do that again.