Apple Mac 5260/100 - Manual (Page 72)

Troubleshooting Symptom Charts/Miscellaneous - 27
“Sad Macintosh” icon 1 Verify that no disc is in CD-ROM drive.
2 Disconnect all external SCSI devices and attempt to restart
computer.
3 Disconnect internal SCSI device and attempt to start
computer with known-good floppy disk.
4 Replace bad SCSI drive with known-good SCSI drive.
5 Replace RAM SIMMs on logic board.
6 Replace logic board. Retain customer’s SIMMs.
No sound from
known-good external
speakers
1 Check that volume is turned on (manually or through Control
Panel).
2 Verify that headphones are unplugged.
3 Verify that speaker connectors are properly connected.
4 Replace logic board. Retain customer’s SIMMs.