Hi. If all of the bulbs on the instrument cluster went out at the same time its probably not the bulbs. If all at seperate times, then it could be bulbs. If they quit at once, they have lost power. If all of the other illumination works it may be the cluster circuit board. the wiring connector plugs into the back of the cluster, and the power for the lights goes from the connector to each board over the circuit board. If you have a test light and want to pull the cluster out of the dash and check for power, I'd be glad to tell you where to check for power.
Here are instructions to remove the cluster.
When you get it out turn the lights on and check for power on the orange wire in pin 12 of the connector. If its ok, you can try and replace a bulb or two. If they still won't work and there is power there, replace the cluster circuit board.
Thank You Very Much I'll try that and see what happen
You are welcome, good luck!