IBM Aptiva 2142 Hardware Maintenance Service

Also see for Aptiva 2140: Maintenance service manual Hardware maintenance service

MonitorFirst, review the “Display Self Test” on page 3-12, then follow step 001.001– Power-off the system unit and monitor.– Remove all adapter cards.– Make sure the monitor I/O signal cable is properly connected to thesystem unit and monitor.– Make sure the power cords are properly connected to the system unit andmonitor, and that the line voltage is correct. See “Power Supply” onpage 2-34.– Make sure the monitor contrast and brightness controls are not adjustedtoo low.– Power-on the monitor, and wait 20 seconds.– Power-on the system unit.Note: Because monitor models might differ, review the Display Self Testbefore attempting to answer the following questions. The test haschanged from previous levels. If the monitor was not sold togetherwith the system unit, you might need to refer to the serviceinformation provided with the monitor.– If you are not familiar with the self-test pattern produced by the DisplaySelf Test, refer to step 4 of “Display Self Test” on page 3-12 for adescription of the self-test pattern.Note:Do not run the Display Self Test. Do not unplug the monitor I/Osignal cable from the system unit.DOES THE DISPLAY SELF-TEST PATTERN APPEAR ON THE SCREEN?Yes No002Go to Step 006 on page 2-54.003Unplug the monitor I/O signal cable from the system unit.DID THE DISPLAY SELF-TEST PATTERN REMAIN ON THE SCREENYes No004(Step 004 continues)Check Procedures 2-53All manuals and user guides at all-guides.com