Apple 145B, 170 manual Symptom Charts, Startup

Models: 145B 170 145

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Troubleshooting

 

Symptom Charts/Startup - 2

 

 

 

Symptom Charts

 

 

 

 

 

 

 

Startup

RAM failure occurs

1

Replace RAM expansion card.

(eight-tone error

2

Replace daughterboard.

chord sequence sounds

3

Replace motherboard.

after startup chord)

 

 

 

Hardware failure

1

Disconnect hard drive data cable and reboot system. If startup

occurs (four-tone

2

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 motherboard.

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Apple 145B, 170 manual Symptom Charts, Startup