Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 68)

LT Installation
68
6 To remove the rear module, push the yellow button to unlock it, and then pull out
the rear module:
NOTICE
EQUIPMENT DAMAGE
Be sure to remove the rear module from the display module without twisting.
Failure to follow these instructions can result in equipment damage.
Step Action