Apple Macintosh Performa 577 - Manual (Page 33)

Troubleshooting Symptom Charts/Miscellaneous - 16
Miscellaneous
Clicking, chirping,
or thumping sound
1 Replace analog board.
2 Replace logic board. Retain customer’s SIMMs.
Smoke/odor Replace analog board.
No video, no audio, and
no drive operation
1 Connect power cord.
2 Switch power on.
3 Replace power cord.
4 Replace analog board.
5 Replace logic board. Retain customer’s SIMMs.
“Sad Macintosh” icon 1 Replace bad disk with known-good disk.
2 Replace RAM SIMMs on logic board.
3 Replace logic board. Retain customer’s SIMMs.