Apple 540C, 520C manual PowerBook 500 Series Startup Problems Flowchart

Troubleshooting PowerBook 500 Series Startup Problems Flowchart/PowerBook

PowerBook 500 Series Startup Problems Flowchart (continued)

1
		Does
Does	No		No
		the disk icon with
the desktop		the flashing question
appear?		mark remain on the
		screen?

1.Replace the daughterboard.

2.Replace the motherboard.

Go to Start

YesYes

1.Reset parameter RAM.

2.Use HD SC Setup to update the SCSI driver.

3.Reinstall System Software.

4.Replace the internal hard drive cable.

5.Replace the hard drive.

6.Replace the motherboard.

7.Replace the daughterboard.

Do the			1.	Reset the power manager.
		No	2.	Check the cables.
trackball and			3. Replace the trackball (or track-
keyboard			4.	pad).
function?				Replace the keyboard.
			5.	Replace the interconnect board.
	Yes		6.	Replace the daughterboard.
			7.	Replace the motherboard.

Insert a known-good disk into the floppy disk drive and try to initialize it.

Does the No disk

initialize?

Yes

END

1.Replace the floppy drive cable. 2. Replace the floppy drive.