Apple mac g4 Uživatelský manuál stáhnout pdf (Strana 115)

PowerBook G4 (1GHz/867MHz) Troubleshooting - 1

Startup Symptom Charts

Symptom Charts

How to Use the Symptom Charts

The Symptom Charts included in this chapter will help you diagnose specific

symptoms related to the product.

The steps to solve a symptom are listed sequentially. You might not need to

perform every step before the symptom is solved. Start with the first step, and

then test for the symptom. If the symptom persists, replace any modules you

removed, go to the next step, and test again. Continue down the list until the

symptom is solved.

Note: Software install and restore procedures are new for the PowerBook G4

(1GHz/867MHz). For new procedures, refer to the read me files that came with

the software install and restore DVD disc for the PowerBook G4 (1GHz/867MHz).

Related articles can be found in the Knowledge Base at:

http://kbase.info.apple.com/

Startup

The computer will not power on (no fan movement, hard drive spin up and

display is not lit)

1. Remove any connected peripherals.

2. Check that the battery has enough charge to start the computer by pressing the button

next to the LEDs on the battery. At least one LED must light solid (not ﬂashing).

3. Connect known-good PowerBook (1GHz/867MHz) power adapter (661-1798) and

power cord or plug to a known-good power outlet; make sure the DC plug is ﬁrmly

inserted. The DC plug should light up, if not, replace DC-in board.

Important: The PowerBook (1GHz/867MHz) power adapter must be used with the

PowerBook (1GHz/867MHz) computers. The adapters can be identified by 65W in

the name and markings, and the metal securing-stud on the plug connector.

4. Try powering up without the battery installed.

5. Press Caps Lock key to see if light on key comes on. If it does, hold power button

down for six seconds to shut down the computer and restart.

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Apple mac g4 Uživatelský manuál Strana 115