IBM PCjr

Error
Description Diagnostic Action
Power
1. Set printer Power switch to OFF. Unplug
Supply
printer power cord. Position printer Power
Check
switch to ON. Measure 2 to 12 ohms
between voltage terminals on power cord.
Does the resistance = 2 to 12 ohms?
YES: Go to step 3.
NO: Check for open fuse. See Section 5,
"Locations."
Is the fuse open?
YES:
Replace fuse. See Section 4,
"Removal/Replacement and
Adjustments." Power off. Plug
in printer power cord. Power
on for 1 minute.
Does the fuse open?
YES: Go to step 2.
NO: Problem resolved.
NO: Check for approximately 12
ohms on primary side of power
transformer. See Section 5,
"Locations."
Does the resistance = 12 ohms?
DANGER: Static voltage may be present on
the fuse-filter card. Use extreme
caution in this area.
YES: Replace fuse-filter card.
See Section 4,
"Removal/ Replacement
and Adjustments."
NO: Replace power
transformer. See
Section 4, "Removal/
Replacement and
Adjustments."
Graphics Printer 3-1400-5