IBM PCjr

1. The resistances on the CNM connector should be
within the ranges listed below.
2. Measure these resistances now.
!oWo^
Low Ohm
High Ohm
Pin 1
to
Pin 3
24 36
Pin 1
to
Pin 5
24 36
Pin 2
to
Pin 4
24
36
Pin 2
to
Pin 6
24 36
WERE YOU ABLE TO READ THE CORRECT
RESISTANCES?
NO The print mechanism is bad. Replace it. Repeat
the advanced test to ensure that the IBM PC
Compact printer is operating correctly.
YES The logic card is bad. Replace it. Repeat the
advanced test to ensure that the IBM PC
Compact printer is operating correctly.
3-850-16 Compact Printer