Zenith Z-100 Series, User Manual

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Page 63
WINCHESTER SUPPLEMENT
Appendix 8
Remove the jumper from the interrupt plugs (see inset
1 of the Figure).
Place the jumper over the Format Enable plugs on the
upper left corner of the board (see inset 2 of the Figure).
Replace the board by gently pushing it straight down into
the card cage. Make sure that it slides down the guides
provided and is completely pushed down into its socket.
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Figure 11
The Winchester disk controller board