IBM PCjr

•
1. Set the printer's Power switch to Off.
2. Disconnect CNK from the logic card.
3.
Measure the resistance on the CNK connector while
pressing and releasingthe paper feed button.
4. Measure these resistances now.
Low Ohm High Ohm
Pin 3 to Pin 4 (Pressed) 0 2
Pin 3 to Pin 4 (Released)
WERE YOU ABLE TO READ THE CORRECT
RESISTANCES?
NO The IBM PC Compact Printer is bad. Replace it.
Compact Printer 3-850-11