1. Make sure the image tone control is set to manual. If not, press it until the manual light is on.
2. Turn the contrast knob up all the way. You may not see a difference on the monitor.
3. Adjust the brightness knob to raise the line on the right monitor until it is the brightest. After you find the peak, turn the knob down slightly so the filament does not burn out. Click the brightness knob above to view animation.

PROCEED TO SATURATE THE FILAMENT

© 2003 Wartburg College Biology Department