IBM PCjr

1. Rotate the leadscrew drive gear counter-clockwise
to move the print head approximately one inch from
the left side frame.
2. The resistance on the CNH connector should be
infinity.
3. Measure this resistance now.
Print Head
HisisuSi
to Pin 2
WERE YOU ABLE TO READ THE CORRECT
RESISTANCE?
NO The print mechanism is bad. Replace it. Repeat
the advanced test to ensure that the IBM PC
Compact printer is operating correctly.
Compact Printer 3-850-15