Originally Posted by Kelvin1965S
My HD350 has just started a slight flicker at 380 hours or so. I've always used normal lamp and simply changing to high lamp (it is some 2.5 metres away so I can't hear the increased fan if there is one) has solved it. I wonder how this will effect the greyscale as I'm due to redo my calibration once (if) my VideoEQ turns up? I've also noticed a slight flattening of the image, but I'm not sure if this is partly due to me changing from a Lumagen HDQ (controls set neutral) to a DVDO Edge and a new 1 in 4 out HDMI splitter, or just lamp drift.
What I did notice was that even though I've closed the iris a bit (in the service menu) to compensate for the brighter lamp setting, is that the blacks don't seem as good, so I'm looking forward to doing a fresh calibration, perhaps with two settings for the two lamp modes just incase.
Typically there is about a 2-3 dE difference between normal vs. high lamp. Also changing the iris impacts dE. The slight flatting of the image can be the result of the gamma tracking. A fresh calibration is indeed in order.
BTW, after just a few hours of running in high lamp mode, you should be able to go back to normal lamp mode without the flickering. This problem is indeed annoying. I had this with the RS20 as well as the Sharp 10K.
Also - I haven't followed the thread, but I didn't realize that VideoEQ was (or is near) shipping...?