Symptom Charts

2 Plug monitor directly into wall socket, and verify that monitor has power. 5 Replace logic board. Retain customer's SIMMs. 2 Replace logic board. Retain customer's SIMMs. Does not power on screen is black, fan is not running, and LED is not lit 1 Make sure air vents on sides and top of case are unobstructed. Thermal protection circuitry may shut down system. After 30-40 minutes, system should be OK. 3 Check batteries. Refer to Battery Verification in Additional Procedures. 5 Replace logic...

Speaker Bracket and Speaker

Caution Review the ESD precautions in Bulletins Safety. Note The speaker and speaker bracket are two separate, replaceable units. To remove the speaker, you must first remove the speaker bracket. 1 Disconnect the speaker connector from the logic board. 2 Gently lift the release latch and pull back on the bracket until it comes free from the case. 3 Caution Do not push on the heavy paper part of the speaker. Gently push the speaker from the bracket.

Macintosh IIci Upgrade

Diagram Logic Board Hard Disk

Before you begin,remove the following Note The Macintosh IIci Upgrade Kit for the Macintosh IIcx includes a IIci logic board, 1 MB of 80 ns fast page mode DRAM SIMMs, a new bottom case, and a new hard drive power cable. Caution Review the ESD precautions in Bulletins Safety. 1 Using the SIMM removal tool, remove the DRAM SIMMs from the old logic board and, if they are 1 20 ns SIMMS, give them to the customer. 2 Discard the bottom case. You need not return it to Apple. 3 Insert the new Macintosh...

Power Supply

Caution Review the ESD precautions in Bulletins Safety. Note Use some force in lifting the power supply. If the power supply does not move, verify that the latch is released. Release the latch and lift the power supply from the computer. Replacement Note Make sure the lips of the power supply align with the slots in the case. Slide the power supply down until you hear a click.

Floppy Drive and Mount

Quadra Drive

Before you begin, remove the following Caution Review the ESD precautions in Bulletins Safety. Note To remove the floppy drive, you must remove the drive mount. Lift the LED holder on the front of the case and pull out the LED. 2 Remove the screw from the drive mount. 3 Pull up on the paper tab and disconnect the hard drive data cable from the logic board. Disconnect the floppy drive cable and hard drive power cable from the logic board. 5 Release the latch and pull the mount toward the rear of...