Originally Posted by HGN2001
Are their any good guides on how to best clean out the set? Do I just use a vacuum within the bulb-housing? Or are you referring to removing the back and stuff?
I'd rather not disturb too much if I don't have to.
based on anecdotal evidence it is not a question of if your optical block will go bad, just a question of when. the amount of effort you want to exert to delay the inevitable is up to you.
i have read lots of cases (including mine) where the OB goes bad 9-12 months after a lamp change. My TV was getting dimmer exactly like HGN2001 describes. I changed the bulb mid Sep 2009 right before football season (i didn't want the bulb to die in the middle of a game). the bulb had about 6500 hours on it at the time, but was still working. the OB died in Jul 2010.
there is a guide describing how to remove the OB and send it off for repair. i still use my 60xs955 during football season as a second set to display the redzone channel or game mix. i read through the guide, but never went through with the process because the picture is still watchable for my purposes. anyway, the process did not seem too difficult to get access to the OB, fan etc.
if it were me, and i wanted the TV to last as long as possible, i would spend the 30 minutes to take the back off the TV and clean out the dust around the OB and fan.