Apple PowerBook Duo Specifications download pdf (Page 65)

Troubleshooting Symptom Charts/Miscellaneous - 40

Unit unable to enter

sleep mode

1 Verify using system 7.5.2 or later.

2 Make sure display actuator is installed

3 on CPU stiffener.

4 Replace sleep switch.

5 Replace logic board.

Note: When replacing the logic board, check that the serial port

EMI clip is attached to the bottom of the CPU stiffener. If it is

missing, replace the stiffener. On international units, also

replace the stiffener if the modem EMI clip is missing. The “CPU

Stiffener” topic in Take Apart helps you locate and identify the

two EMI clips.

Note: Perform the battery contact alignment procedure when

you replace a logic board. (See Additional Procedures, “Align

Battery Contacts.”)

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Apple PowerBook Duo Specifications Page 65