7-10 
3. Push the clamps aside to remove the Wi-Fi module. 
   
 
4. For Laird 2.4/5GHz Module, unscrew the three M2×4 screws and disassembly the Laird 2.4/5GHz Module and 
Carrier Board of Wireless Module: 
 
 
 
7.4.3 Removing SD Card 
Unscrew the M3×6 screw, and push the SD card as indicated below to take out the SD card. 
 
 
 
7.4.4 Removing the Main Control Board 
Disconnect the alarm lamp cable, cable for display backlight, display cable, and the cable between the main board 
and keypad board respectively. Unscrew the four M3×8 screws and take out the main board, as shown below: 
Clamps 
Clamps 
Clamps 
Clamps 
Cyber link  Laird