Toyota Repair: 96 Toyota Landcruiser instrument lights, toyota landcruiser, instrument cluster

Question
I am loosing the green lights that identify the switches on my dash and radio.
I've also lost the lights on the transmission console. This has been happening
over time. It started with loosing half the green lights on the radio and has
slowly progressed to most of the switches on the dash. The main instrument
cluster is fully lit with the exception of the "D" indicating the transmission
position. I can't identify a failed fuse. Ideas?

Answer
The bulbs probably burned out one after the other and should be replaced, the D bulb in the dash can be replaced by removing the instrument cluster, the bulbs are located on the back.If the bulbs are not the problem there is an electrical wiring problem.