Troubleshooting | PowerBook 140/145/170 Startup Problems Flowchart/ | |
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PowerBook 140/145/170 Startup Problems
Flowchart
START
Reset the power
manager.
Press the power button to begin the startup sequence.
Do the No startup tones
sound?
Yes
Does any | No | ||
video |
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appear? |
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| Yes |
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1.Replace the daughterboard.
2.Replace the motherboard.
1.Check the cables.
2.Replace the interconnect board.
3.Replace the daughterboard.
4.Replace the motherboard.
Is the | No | ||
startup tone | |||
normal? |
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| Yes |
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Does a | No |
gray pattern |
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appear? |
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Yes |
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1 |
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See Startup Problems in
the Symptom/Cure Chart.
1.Check the cables.
2.Replace the inverter board.
3.Replace the interconnect board.
4.Replace the display cable. PowerBook 520, 520c, 540, 540c: Replace the interconnect-
5.Replace the display. PowerBook 170, 180, 180c: Replace the display (international only) or return the computer to Apple.
6.Replace the daughterboard.
7.Replace the motherboard.
