Apple 150 manual Symptom Charts

Models: 150

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Troubleshooting

 

Symptom Charts/Startup - 3

 

 

 

Symptom Charts

 

 

 

 

 

 

 

Startup

RAM failure occurs

1

Replace RAM expansion card.

(eight-tone error

2

Replace logic board.

chord sequence

 

 

 

sounds after startup

 

 

 

chord)

 

 

 

Hardware failure

1

Disconnect hard drive data cable and reboot system. If

occurs (four-tone

2

startup sequence is normal, replace hard drive.

error chord sequence

Disconnect floppy drive cable and reboot system. If startup

sounds after startup

3

sequence is normal, replace floppy drive.

chord)

Replace logic board.

Page 19
Image 19
Apple 150 manual Symptom Charts