Well, neither manual seems to have the correct LED code.
Power is solid orange and Warning is solid red.
I borrowed a friend's Panasonic PT-AX100E and Hitachi PJ-TX100 and neither of them have the lens shift that my z4 did.
My projector is pretty far to the right and I had empty screen on the left and right of my image (z4).
Both the Panasonic and Hitachi bled off the right of the right of the screen, from the same position.
I didn't have them mounted, but I just held the projectors up to the same place.
I was really surprised.
If you've had good experience with two lamps, then I would be more apt to consider it.
The only replacement that I've purchased was a "compatible" lamp and it was rubbish quality.
If you wanted to send it, for testing purposes, that would be very kind.
I really question whether it's the lamp, though.
The wires look good (not broken), I didn't hear a pop, and this other one didn't work.
I used the projector just a couple days prior.
Then I turned it on and nothing.