TroubleshootingSymptom Charts/Floppy Drive (Continued) - 14

Floppy Drive (Continued)

During system

1

Replace disk with known-good system disk.

startup, disk ejects;

2

Clear parameter RAM. Hold down <Command> <Option> <P>

display shows icon

 

<R> during startup but before “Welcome to Macintosh”

with blinking “X”

3

appears.

 

Replace floppy drive cable.

 

4

Replace floppy drive.

 

5

Reseat ROM, RAM, and cache SIMMs, and reseat terminator

 

6

card.

 

Replace logic board. Retain customer’s SIMMs.

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Image 40
Apple 9150 manual Floppy Drive