Monitor (Aptiva 2170/71/72/74/87/90 - SL-A)

Monitor (Aptiva 2170/71/72/74/90 - SL-A)

First, set the system to VGA mode. To do this in Windows 98, depress the F8 function key during startup.
Safe mode (VGA) will be set for Windows 98.
Use the operating system's video setup to change the monitor resolution.

The monitors that come with the system are DDC2A/B or DDC1/2B+ (Display Data Channel) compliant.
While starting Windows 98, the DDC2 monitor passes resolution and frequency information to the system.
The system interprets the data and sets up the proper refresh rate.

If the monitor type is set to the power saving mode, the screen remains black and the LED lights or flashes in amber color.
When the monitor is turned on alone, or is turned on and connected to a powered-off system unit, the monitor LED blinks in amber color. Under the normal operating conditions, the LED lights in green color.

NOTE: Some monitors have a detachable system I/O signal cable between the monitor and the system unit.
Check the line voltage, power cord, and continuity for the system I/O signal cable before replacing the monitor.
See 'Monitor Port Signals' for pin identification.

001 - START

•  Power off the system unit and monitor.
•  Remove all adapter cards.
•  Make sure that the monitor I/O signal cable is properly connected to the system unit and monitor.
•  Make sure that the power cords are properly connected to the system unit and monitor,
   and that the line voltage is correct.
•  Make sure that the monitor contrast and brightness controls are not turned too low.
•  Make sure that the diagnostics diskette is in the diskette drive.
•  Power on the monitor, and wait 20 seconds.
•  Power on the system unit.

  NOTE: If the monitor was not sold together with the system unit, you may need
   to refer to the service information provided with the monitor.

  002 - IS THE SCREEN READABLE? (YES, READ AHEAD. NO, GO TO STEP 004)

  NOTE: If the screen shows a blinking cursor with no memory count running,
   answer this question 'No.'

•  Select Interactive Tests from the Main Menu.
•  Select and execute Video test from the menu.
•  Follow the prompts and perform the video test.
•  Go to 'Index of Symptoms, Messages, Error Codes, or Beeps'.
•  You might have to adjust the monitor controls to obtain the best image.

  003 - DOES THE MONITOR SUCCESSFULLY PASS ALL TESTS?
   (YES, READ AHEAD. NO, GO TO STEP 004)

•  You have successfully completed the video diagnostics tests.
   If the problem remains, go to 'Index of Symptoms, Messages, Error Codes, or Beeps'.
•  End.

  004 -

•  Power off the system unit.
•  Remove the hard disk drive system cable.
•  Power on the system unit.

  005 - IS THE SCREEN STILL NOT READABLE?

•  Replace the monitor. If the symptom remains, replace the system board.
•  End.

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