Hoping there are some old Pearl owners out there, or some people with ideas on how to source a polarizer/mirror....
My VW50 has about 3700 hours on it, and over the last few hundred has really developed a bad blue wash. I adjusted it all I could, but yesterday just looked at the dark blue where all the black should be, and said enough. Downloaded the service manual, pulled it all the way apart, and believe I have the problem in sight. As you'd guess, it is some kind of blue channel polarizer which has obviously expired. It looks to me like it's either a piece of polarizing glass over a mirror, or a polarized mirror. It definitely doesn't look like the classic transmissive polarizer to me. There is another similar mirror(?) on the other side that feeds both red and green. That one looks a little off colored but I'd need to pull it out to be sure. It could be a reflection, I'm not sure.
I am open to suggestion on how to proceed. The piece of glass looks to be held in with two tiny phillips head screws top and bottom. The ones at the bottom look difficult to get to. I thought I'd stop here before I wreck anything, as I'm at the edge of my knowledge on these things.
In this picture I've shown my idea of roughly how the light is routed. The obviously bad mirror is the yellow line. The questionable mirror is the pale blue line. Clear mirrors are white lines. The colored blocks at the base of the ribbon cables are the LCDs. It appears there are semi transmissive mirrors at 45 degrees, in front of each of them, I am guessing. (Click for bigger)
This is the unedited version.
Here are two shots of the blue side polarizer. The centre assembly (looks like a plastic X) screws in at the bottom, so I guess it lifts out. It looks to have two pins in slots indicating that it may be a pain to get back in correctly.
Here is the other polarizer, which is questionableEdited by Miles B - 7/25/13 at 6:37am