Apple 4400/200 PC Manuale Utente

 

 Troubleshooting

Symptom Charts/Miscellaneous - 16

 

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.