AT&T PC 6300 - Page 590

APPENDIX Aj switches and JUMPERS
The jumper A is physically located near the socket reserved for the
insertion of the Z8530 SCC. This jumper defines the clock to be
used with the Z8530 SCC. The jumper is not currently used.
The jumper B is physically located near the Floppy Disk
Controller. This jumper is used only for production testing and
should not have a jumper cap present.
The jumper C is physically located close to the speaker. This
jumper is not used but is present.
The jumper D is physically located close to the Keyboard
connector. This jumper is not used.
The jumper E is used to enable or disable the battery of the Clock
Calendar Chip. Jumper cap is normally present.
A-8
n
n
n
n
n
n
LJ
0
0
n
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n