including speakers and microphone from the system unit, except for the keyboard, mouse, and monitor.

Power off the system unit (unplug the power cord) before moving it or when replacing FRUs.

Remove all adapter cards, except for the factory- installed modem adapter card and any other IB Personal Computer factory-installed adapter cards.

Disconnect all drives except:

-3.5-in. diskette drive

-Hard disk drive

-IBM Personal Computer factory-installed devices (such as a CD-ROM drive)

Ensure that all power cords and cables are connected properly.

Ensure that the monitor brightness and contrast controls are not turned down.

Power on the system unit.

NOTE: Some monitors have a detachable system I/O signal cable between the monitor and the system unit. In this case, check this signal cable before replacing the unit. See “Monitor Port Signals” on page 127 for pin identification.

Ensure correct monitor refresh rate.

Note any symptoms, messages, error codes, or beeps.

Make sure that there are no diskette or CD in the drives.

002 - DOES AN IBM LOGO SCREEN APPEAR? (YES, READ AHEAD. NO, GO TO STEP 004.)

Insert diagnostics diskette in the diskette drive.

003 - DOES SYSTEM LOAD THE DIAGNOSTICS PROGRAM FROM THE DISKETTE DRIVE? (YES, READ AHEAD. NO, GO TO STEP 004.)

Follow the instructions on the screen and select Utility from the diagnostics program menu.

Select Tech Support Form from the menu, press F5 to execute, then generate a system configuration report.

Check Procedures 35

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IBM 2274 manual Insert diagnostics diskette in the diskette drive