The backlight on my CMU200 was dim, dim enough that I need to lower the ambient lights to see it during the day so I've been using an external monitor which is workable but awkward as the softkey functions align with the screen, obviously.
So, I figure the CCFLs for the backlight are worn out, it's an old piece of kit after all and has seen lots of hours use.
I've been keeping an eye open for likely CCFL tubes (found an unused new HP slide scanner adapter which has two lovely CCFLs about the size I'd expect to need in it) and also weighing up the pros and cons of LED replacements.
Today I finally got the time and courage to strip it down and remove the FMR5 module to see what could be done.
After *lots* of non magnetic countersunk screws were removed I managed to prise the module out and strip it down to access the LCD, whereupon I realised all chances of using the CCFLs I have were zero, see the attached pic of the original CCFL removed from its plastic carrier.
I could have ordered a flexible LED strip or reused one of the ones I've salvaged from smashed laptop displays, I realised that the main problem was the reflectors in the CCFL module had curled with age and were wrapped round the tube blocking almost all the light.
Removing them and replacing with the reflectors from the slide scanner was a doddle and the Result was an LCD screen that's absolutely tons better and useable in bright lighting.
I'll probably need to replace the tube at some future point but for now, it's all back together and working nicely.
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