NCR 7870 - Page 94

5-8 Chapter 5: Calibration
c) Connect the Field Service Calibration Display to J-4 on the LC-
Digital Board (J-5 on the old Digital Board).
LC Digital Board
J3
J1
Old Style Digital Board
Integrated Display Connector
J3
J2
DS1
J5
J4
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d) Apply power to NCR 7870.
e) Go to Section 4
: Performing the Calibration