Fluke 199B Service Manual page 30

Fluke 19xB-19xC-2x5C
Service Manual
5. Press
6. Press
7. Press
8. Press
9. Press
10. Press
11. Press
12. Press
13. Turn the test tool OFF and ON to exit the calibration menu and to return to the
If the maximum, minimum, or default display contrast is not OK, then you can set these
items without performing a complete calibration adjustment; refer to Section 5 for
detailed information.
4-6
The test tool shows the calibration menu in the bottom of the display.
•
Do not press
•
Pressing will toggle the menu on-off.
PREVIOUS
The test tool shows
Contrast (CL 0100):
CALIBRATE
shown in Figure 4-2 may be not visible or hardly visible.
Observe the display closely, and verify that the display shows no abnormalities, as
for example very light pixels or lines.
Figure 4-2. Display Test Pattern
.
The test pattern is removed; the test tool shows
again to do the next step
CALIBRATE
The test tool shows the display test pattern shown in Figure 4-2, at default contrast.
Observe the display closely, and verify that the display shows no abnormalities. Also
verify that the contrast of the upper left and upper right square of the test pattern is
equal.
.
The test pattern is removed; the test tool shows
again to do the next step
CALIBRATE
The test tool shows a light display; the test pattern as shown in Figure 4-2 may not be
visible or hardly visible.
Observe the display closely, and verify that the display shows no abnormalities.
normal operating mode.
now! If you did, turn the test tool off and on, and start at 4.
three times.
.The test tool shows a dark display; the test pattern as
Contrast (CL 0110):
Contrast (CL 0120):
Contrast (CL 0100):
Contrast (CL 0110):