NEC NEFAX 671 Service Manual page 94

4980D051AB
11. Turn off this machine.
12. Change the settings for jumper switches CJ3 on the Controller/Mechanical Control
Board from "2-3" to "1-2". (Return them to their default settings.)
13. Install the NIC Board. (only when the optional NIC Board is mounted)
14. Install the Rear Cover.
15. Turn on this machine.
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