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Troubleshooting Symptom Charts/Internal Modem - 34
Modem does not
respond to incoming
call
1 If computer is in sleep mode, verify that “Answer calls” is
selected in PowerBook Control Panel.
2 Check phone cord connection and operation.
3 Replace modem card.
4 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.”)