Apple 4400/200 PC Personal Computer User Manual


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Troubleshooting Symptom Charts/Miscellaneous - 16
Miscellaneous
Screen shows “Sad
Macintosh” icon and
black vertical lines;
screeching sound
1 Replace DIMMs.
2 Replace logic board. Retain customer’s DIMMs.
Headphone jack does
not operate correctly
Verify that headphone jack is seated properly.
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