Airport Systems
MCU’s socket has a notch along the outside edge on one of the short sides this is the top side of the socket.
CAUTION!
Do not use excessive force when you remove or install the chip from/into its socket. Excessive force can bend or damage the MCU Pins or the socket.
Step 1
Gently remove the old MCU using a small flat head screwdriver to pry it free of its socket. Set aside the old MCU.
Step 2
Carefully place the new MCU in the empty socket with top of the MCU and pin 1 in the same locations as noted earlier. Inspect all of MCU’s pins checking that each pin is inserted into its respective contact and that none of the pins of have "roll under" or "bend out" of the socket.
Step 3
Carefully press the new MCU into the empty socket until it is firmly seated on the socket.
Step 4
Place the old MCU into the new MCUs empty shipping container.
A detailed drawing showing the location of the MCU in the Master Controller is shown in Figure
PLC Health Monitoring & Reporting Sys | Manual |
