Maintaining and repairing the device 
  7.4 Installing and removing hardware 
SIMATIC IPC277G 
Operating Instructions, 08/2021, A5E50059956-AA 
65 
Procedure - To replace the memory module on 12" to 24" multi-touch devices  
 
 
Unscrew the marked five screws with a T10 screwdriver on 
the bottom of the device. 
 
Unscrew the marked six screws with a T10 screwdriver on 
the interface plate of the device. 
 
Unplug the marked COM cables on the motherboard and 
remove the interface plate of the device. 
Unscrew the marked two spring screws with a T8 screwdriver 
on the motherboard. 
Unscrew the marked other eight screws with a T10 
screwdriver on the motherboard.