Fluke 190-104 - Contrast Calibration Adjustment

Fluke 190-104/190-204
Service Information
5-6
F3
CALIBRATE start the calibration adjustment of the actual step
F4
EXIT leave the calibration mode
5.4 Contrast Calibration Adjustment
After entering the calibration mode the display shows:
WarmingUp (CL 0200):IDLE (valid)
Do not press
F3
now! If you did, turn the Test Tool off and on, and enter the
calibration mode again.
Proceed as follows to adjust the maximum display darkness (CL 0100), the default
contrast (CL 0110) , and the maximum display brightness (CL 0120).
1. Press
F1
three times to select maximum darkness calibration Contrast (CL
0100):
2. Press
F3
CALIBRATE . The display will show a dark test pattern, see Figure
5-2
3. Using
adjust the display to the maximum darkness at which the test
pattern is only just visible.
4. Press
F3
to return to the softkey menu.
5.
Press
F2
to select default contrast calibration Contrast (CL 0110):
6. Press
F3
CALIBRATE. The display shows the test pattern at default contrast.
7. Using
set the display to optimal (becomes default) contrast.
8. Press
F3
to return to the softkey menu.
9.
Press
F2
to select maximum brightness calibration Contrast (CL 0120):
10. Press
F3
CALIBRATE. The display shows a bright test pattern.
11. Using
adjust the display to the maximum brightness, at which the test
pattern is only just visible.
12. Press
F3
to return to the softkey menu.
13. Now you can either
• Exit, if only the Contrast had to be adjusted. Continue at Section 5.7.
or
• Do the complete calibration. Press
F2
to select the next step
(WarmingUp), and continue at Section 5.5.