We've had the tv for approx 6-7 years. No, no work has ever been done othre than replacing the bulb twice.
Thank you for the reply.
The three lights blinking on the front of the set are directly telling you that the Lamp has failed and needs to be replaced per the Samsung Manual.
If you replaced the Lamp 2 years or more ago, this is about the average lifespan of a lamp (although they can last much longer in some cases).
If you replaced it more recently than that and used a lesser priced substitute lamp- as opposed to an OEM lamp, then this is actually common as the lesser priced lamps do not hold the gas charge for as long as the OEM's and can cause this problem.
The solution based on the 3 blinking lights is to replace the Lamp with an OEM lamp (which can be purchased at the link below for your set):
it isn't three lights blinking. it is two lights blinking - one red and one green.
If you are looking at the tv, the order of the lights is: left red light blinnking, then one that isn't on, then green light blinking (on the right). They are not labeled.
Where is the lamp? Is it by the bulb?
OK -- I will go try it now ...
Thank you -- that worked!