Instruction Manual

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3.2.3 Main Controller Unit
The Main Unit is composed of an FCBUS mother board, a 5 VDC 10A power supply, and the
FC386, MULTI, and UPC printed circuit boards (PCB). The UPC PCB contains the floppy
disk drive (FDD) and the hard disk drive (HDD).
FIG. 3-2-3 Main Controller Unit
The following table describes the components and features of the Main Controller Unit, shown
above.
Chapter 3: System Description User Console Version A3.53
Page 3-6