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Troubleshooting Symptom Charts/Peripherals - 25
Known-good direct
connect printer does
not print
1 Check that power adapter is plugged in.
2 Verify that System is 7.5.2 or later.
3 Verify that Chooser and Control Panel settings are correct.
4 Check serial cable.
5 Replace printer cable.
6 Try known-good printer.
7 Replace logic board.
Note:
When replacing the logic board, check that the serial port
EMI clip is attached to the bottom of the CPU stiffener. If it is
missing, replace the stiffener. On international units, also
replace the stiffener if the modem EMI clip is missing. The “CPU
Stiffener” topic in Take Apart helps you locate and identify the
two EMI clips.
Note:
Perform the battery contact alignment procedure when
you replace a logic board. (See Additional Procedures, “Align
Battery Contacts.”)