IBM Aptiva 2174 Hardware Maintenance Service

Check Procedures 47JoystickGame port does not respond ordoes not work.Connect a joystick to the game port, then execute“Interactive Test/Joystick” test in PC-Doctordiagnostics program.System board.Diagnostic ProgramDiagnostics programs cannotbe executed.Reboot the system from the diagnostics diskette.Load default settings.Diagnostics diskette.Memory module.System board.Missing diagnostics file(s). Diagnostics diskette.KeyboardSome or all keys on keyboarddo not work.“Keyboard” on page 58.Power SupplyPressing power switch does notturn off system. (Only unplugpower cord from electricaloutlet can turn off system.)“Startup Options” on page 18Power switch cable assembly“Power Supply” on page 61Pressing power switch does notturn on system.Ensure the power override switch(situated at theback of the machine, just above the connector forthe power cable) is not set to off.Power switch cable assembly.Executing software shutdownfrom Windows98 Start menudoes not turn off system. (Onlypressing power switch can turnoff the system).Load default settings.Reload software from Recovery CD.No system power, or powersupply fan is not running.“Power Supply” on page 61System board.Other ProblemsAny other problems. See “Undetermined Problems” on page 66Table 2-3 Error Symptoms List (Continued)NOTE: To diagnose a problem, first find the error symptom in the left column. If directedto a check procedure, replace the FRU indicated in the check procedure. If nocheck procedure is indicated, the first Action/FRU listed in right column is themost likely cause.Error Symptoms Action/FRU