Contrast Calibration Adjustment - Fluke 190-104 Service Manual

Fluke 190-104/190-204
Service Information
F3
F4

5.4 Contrast Calibration Adjustment

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