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Troubleshooting Symptom Charts/Internal Modem - 35
Modem has no sound
output
1 Verify that Control Panel volume setting is 1 or above.
2 Replace modem card.
3 Replace logic board.
Note:
When replacing the logic board, check that 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.”)