Cutoff

Note Perform the cutoff and white balance adjustments after the monitor has been on for at least 10 minutes. 1 Use Display Service Utility to display the Gray Bars test pattern 2 Press the Contrast Up button and set screen contrast to maximum. Select the Screen Control Panel in the Control Panels folder. Drag the brightness control to midrange. Using a hex-head plastic adjustment tool, set the red RB , green GB , and blue BB background controls to the full Note To set the green and blue drive...

General

The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. Note If you have replaced a module, reinstall the original module before you proceed to the next cure. If you are not sure what the problem is, or if the Symptom Charts do...

Front Panel Control Board

Connector Logic Board Imac

1 Disconnect the front panel control cable. 2 Remove the Phillips screw and remove the board. Logic Board Connector and Cable Assembly First remove the EMI shields, speaker assembly, and front panel control board. Overview of removal procedures Detailed steps follow the overview. First disconnect all the connections from the top of the chassis. Then route the cables through to the underside of the chassis and disconnect the logic board connector. Speaker Cable Connector Right Speaker Cable...

Identifying the Chassis Harness Assembly

Speaker Assembly

There are three slightly different chassis harness assemblies and Apple service strategy varies with the type of chassis. The three chassis harness assemblies differ according to the combination of floppy and CD-ROM drives they support. Chassis 922-1824 supports the auto-insert Apple SuperDrive and CD-ROM drives earlier than the 300i . This chassis requires a floppy drive adapter, and the CD-ROM connector bridge is about 1-1 2 inches above the CD-ROM drive bay. Chassis 922-0557 supports the...