Figure 33: PCB shield removed
6 On the left side of the board at J501, gently slide the keypad ribbon cable retainer away from the center of the board
Gently remove the keypad ribbon cable from the main board
Figure 34: PCB sheild removed
7 Pull the main board away from the front panel There is a connector with long pins that connects the main board to the
display board, so you will feel some friction but it should not require a lot of effort Do NOT remove the display board as
doing so will damage the display
To install the main board:
1 While holding the main board, insert the keypad ribbon cable into the keypad ribbon cable connector at J501 You may
need to use tweezers for electronics to insert the ribbon cable Slide the cable retainer toward the center of the board to
secure the keypad ribbon cable
2 Align the pins on the display board to the holes on the main board and slide on the main board
3 Re-install the shield and the four screws
4 Reconnect the wiring to the terminal blocks
5 Close the enclosure and tighten the four screws
Replacement Instructions
Page 37
May 2021
TTM-UM-02537-EN-06