Diaphragm replacement in 066? Interchangable a/ 044?

[medwardb]

Hi folks,
I have a pair of 066's of which has a bonked dome.
I have no definite method of opening the 066 and wondered
If anyone knew how to open them? The proper way of cource :-)
Also are the 044 and 066 diaphragms interchaingable?
Fit and function wise both please

Thanks much all,

-Mark>. *

[Audiobeer]

Are the tweeters working but the dome is caved in?