Lexmark WinWriter 100, Руководство по обслуживанию

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4076-0WJ
Diagnostic Information
14
Parallel Port Service Check
Power Service Check
FRU OR PROCEDURE ACTION
1 Parallel Port Run a test page to be sure the printer
can print. Run the
“Parallel Port Test”
on page 19 . If the test fails, replace
the system board.
FRU OR PROCEDURE ACTION
1 Power Supply Disconnect J11 from the system
board and check the following volt-
ages on the power supply cable:
J11-1 to GND = +5V dc
J11-3 to GND = +24 V dc
If you do not have correct voltage,
replace the power supply. Be sure to
unplug the machine before you recon-
nect the power supply to the system
board.
2 Operator Panel With the machine unplugged and the
power button depressed, check for 0
ohms at J10-2 on the front of the
operator panel connector. If the read-
ing is incorrect, check the operator
panel cable for continuity. If the cable
has continuity, replace the operator
panel.
3 Print Head Cable
Parallel Cable Turn off the printer. Disconnect one of
the listed components and turn on the
printer. Look for a symptom change.
Check the failing part for shorts and
replace as necessary. Repeat this
procedure for the remaining listed
parts.
4 System Board If the symptom has not changed,
replace the system board.