Main Base Board (Mbb) - Carrier 48FC Series Controls, Start-Up, Operation And Troubleshooting

Main Base Board (MBB)

See Fig. 29 and Table 23. The majority of the I/O is connected to
the MBB which executes the controls operation of the unit from
the software that is loaded onto it.
J2
J1
TB1
J3A J3B J3C J3D J3E J4
TB2 TB3
Fig. 29 - - Main Base Board (MBB)
J5 J6 J7
J18 J20
54
J8 J9
J17 J16 J15 TB4
TB5
J10
J11
J12
J13
J14
C150161