Old and New bulbs dimmer.
Posted: Thu Feb 18, 2010 1:22 pm
New to the forum. Hello!
For over two years, my HLS 5686W performed flawlessly. Then about 6 mos ago, the picture would dim about 60 seconds after power on. Brightness settings had to be changed from mid 50s to low 70s. Then, about two months ago, picture would go to black and I got the three blinkers. However, when I powered back up, everything was fine, INCLUDING picture brightness which went back to normal (mid 50s settings). I ordered a new Phillips bulb (E22 120/132W) but let it sit in the closet because all was well with old bulb. Three days ago, after about 30 seconds, bulb kept going dark with the three blinkers. Re powered, same thing after thirty seconds. OK, finally time to pull out the new (bare) bulb.
From the get go, the new bulb is dim again (like the old one became, then self corrected). Need to crank up brightness to the 70s (picture starts to get milky). Could this be a problem with the ballast? What has me stumped is why the old bulb got brighter towards the end. Any ideas would be welcomed.
For over two years, my HLS 5686W performed flawlessly. Then about 6 mos ago, the picture would dim about 60 seconds after power on. Brightness settings had to be changed from mid 50s to low 70s. Then, about two months ago, picture would go to black and I got the three blinkers. However, when I powered back up, everything was fine, INCLUDING picture brightness which went back to normal (mid 50s settings). I ordered a new Phillips bulb (E22 120/132W) but let it sit in the closet because all was well with old bulb. Three days ago, after about 30 seconds, bulb kept going dark with the three blinkers. Re powered, same thing after thirty seconds. OK, finally time to pull out the new (bare) bulb.
From the get go, the new bulb is dim again (like the old one became, then self corrected). Need to crank up brightness to the 70s (picture starts to get milky). Could this be a problem with the ballast? What has me stumped is why the old bulb got brighter towards the end. Any ideas would be welcomed.