NCR PC4I, Руководство пользователя

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OPTIONS INSTALLATION
Numeric Coprocessor
The Numeric Coprocessor can be installed to the MPB to enhance the
arithmetic capabilities of your system. Follow the instructions given
in the memory expansion section of this chapter to install the chip
(refer to Figure 3-19). Refer to Figure 3-25 for chip location. You need
to change the switches for MPB SW1 switch block (see Figure 3-24).
Switch 2 Explanation
ON Coprocessor not installed
OFF Coprocessor installed
S w itc h 2
E x p la n a tio n
ON
OFF Coprocessor not installed
Coprocessor installed
SW1 SW1
) 2 3 4 5 6 7 8
Figure 3-24 MPB SW1 Switch Settings
You may need to remove boards to get to the chip socket and switches
(see Figure 3-25). Refer to the cabinet disassembly and board installa­
tion sections in the front of this chapter.
3-22 OWNER S MANUAL