1998 Honda Oddysey - The light is out on the radio/tape deck display; how do oyu fix it?

If they went out all at one time, you may have lost the back lighting power. If they went out little by little, the bulbs may have burnt out.

check the fuses.

sounds to me like if the stereo's still workin' fine, but the display is out, gonna need this one serviced, if it's dead you could look at the main power feed for the stereo, often a pigtail fuse on that one...but why is it blown...warrants further investigation~

...is your dimmer turned all of the way dim??...wooof~