Datex-Ohmeda D-VNC15, Technical Reference Manual, Page: 25 / 72

Displays and Controller Boards
Document No. 8001004-1
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23. Degaussing:
Select DEGAUSSING with the keys SELECT then push the key ADJUST (+) or (>). Check that
the picture on the screen sways briefly with a subdued sound
NOTE: Degaussing (demagnetisation) takes place automatically when the monitor is turned
on. The efficiency of a single degaussing phase decreases if repeated at intervals shorter
than 15 minutes.
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24. Color temperature adjustments:
Select COLOR or COLOR TEMPERATURE with the keys SELECT and ADJUST.
Check that the colors on the screen are changing with the keys ADJUST. Leave the
adjustment to a suitable level.
Perform the same steps also for RED, BLUE and GREEN (the last adjustment only in Rev.
00-02 displays).
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25. Contrast mode selection:
Select CONTRAST MODE.
Check that the contrast mode is turning on and off with the keys ADJUST. Leave the
selection into a suitable mode.
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26. Perform electrical safety check and leakage current test.
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27. Check that the display functions normally after the performed electrical safety check.
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28. Clean the picture tube with a clean, soft cloth dampened with suitable cleaning solution.
NOTE: Do not use any abrasives or hard objects to remove stains. Do not polish the screen.
Clean the display cover with a cloth dampened with a mild detergent solvent.
NOTE: Do not use strong solvents (e.g. acetone) or aerosol cleaners for cleaning the cover.
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29. Fill in all necessary documents.