Hitachi CP-X430W? It has a faint double image, apparently in the red
channel,

I've seen something like you describe in NEC LCD projectors. AIRC, the
problem was warpage of the affected LCD panel; repairable (replace the
panel), but not economically.

jak,
Thanks for the feedback. We've had quite a few projectors including NEC
fail with bad panels or filters, but the symptoms were quite different, mostly
consisting of blue blobs sneaking through what should be a dark background or
yellow spots on a white screen. They always seem to under-rate the cooling in
LCD projectors.
The fault with this Hitachi is that the "ghost" image is exactly 12 pixels
wide and shows up ahead of normal vertical lines. A warped panel or dichroic
filter wouldn't do that. If a red-only screen is displayed and the RGB input is
fed color bars at 50% level (you will not see it at 100%), the right side of the
red vertical bar is dark, the width of 12 pixels. The green and blue channels
are OK.
As I mentioned before, we had quite a few Sanyo based projectors with the
same kind of problem. The "cure" for those was to change the data in one memory
location in the service menu. We needed the ear of a knowledgeable tech at
Sanyo, and I got it several years ago... that problem was solved for Sanyos.

Ray
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