Apple 7200/90 Manuale Utente

 

 Troubleshooting

Symptom Charts/Error Chords - 4

 

One-part error 

chord sounds during 

startup sequence

1 Disconnect SCSI data cable from hard drive and reboot 

system. If startup sequence is normal, initialize hard drive. 

Test unit again with SCSI data cable connected. If error chord 

still sounds, replace hard drive.

2 Disconnect floppy drive cable from floppy drive and reboot 

system. If startup sequence is normal, replace floppy drive.

3 Replace logic board. Retain customer's DIMMs.

Eight-part error 

chord (death chimes) 

sounds during 

startup sequence

1 Replace DRAM DIMMs one at a time to test DRAM. Replace 

any faulty DIMMs.

2 Replace logic board.