The 9 flashes are the trouble sequence for Lamp or Ballast failure. Disconnect display power. let everything cool.
Remove lamp- without touching any of the glass-it'll have a plastic handle for handling the mount.
if you look at the tube in the center,check for a blackend ring around the base of it. Lamps should last 2-3 years.
If there are sounds of arcing from the area of the lamp when you try to power it up, your ballast is needing love or replacing.
discountmerchant.com has a good stock of lamps and PSUs.
Check the lamp. First thing to go.
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