IBM 19 - Manual (Page 292)

5. Use a flat-tipped screwdriver to remove the existing 1K-ohm
DIP resistor from the RP1 socket (fig. 8.23). Gently slide the
screwdriver under the resistor and lift it up and off the
controller board.
Fig. 8.23 Remove the DIP Resistor
Chapter 8
8 - 3 6 P r i n t e r O p t i o n s
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