Quote:
Originally Posted by Shiraz
I can't think how the chip could be as much as 3mm out of alignment - that is an extraordinary offset - mine was 0.3mm and even that was pretty bad
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Hi, sorry, my memory is not what it used to be.
It was about 0.7mm off the first time I opened it, not 3mm. I then brought it down to around 0.3 or so with the shim.
I just measured and the distance from each ccd corner to the outer body surface is 8.25, 8.3, 7.9 and 8mm
I 'll try adjusting the shim again to bring it within 0.2 or less
I had a closer look, and the reason why it's off is because the chip is not seated in the socket precisely. If only they had to pay a bit more attention before adding the sealant
To avoid cooling loss, I added more thermal paste in the gap caused by the shim. I just hope the central part of the pcb holding the sensor doesn't break off as its being raised by the shim.
I'll fix this first and check my collimation, focuser and the rest again.
Thanks