Odometer display is blank

I have a 1994 Bravada where the odomoter digital display is blank.
The rest of the Digital displays are normal. Are their any parts that I can replace or check?

You're one lucky person, I did a search for the dash cluster and here's what I found very reasonably priced today. Looks like a good deal too. too.
http://cgi.ebay.com/ebaymotors/1989-1994-GMC-SONOMA-JIMMY-S15-DIGITAL-CLUSTER-DASH-MB_W0QQcmdZViewItemQQcategoryZ33675QQitemZ80082284 73QQrdZ1QQsspagenameZWDVW

Thanks for the info. Has anyone purchased motherboards from this service?

www.mrwhizzard.com