Installation Note N9020-90257 11
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
2. Refer to Figure 5. Pull the front frame carefully away from the chassis. Remove the ribbon 
cable W1 from the A8 Motherboard.
Figure 5  Front Panel Cable
W1 may have locking springs on each side. Depress the spring on each side of the connector to 
remove from the motherboard.