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Troubleshooting Symptom Charts/Internal Modem (Continued) - 42
Internal Modem (Continued)
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 the EMI clips
are securely attached to the CPU stiffener. The “CPU Stiffener”
topic in Take Apart helps you locate and identify the two EMI clips.
If both clips are not secure, replace the CPU stiffener.
Modem connects but
does not communicate
with remote modem
1 Verify that remote modem needs error correction (error
correction is internal modem default).
2 Type AT &Q0 to disable error correction.