Apple Macintosh LC 575 Specifications download pdf (Page 45)

Troubleshooting Symptom Charts/Miscellaneous - 24

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.

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