AV-21PM
No. 56055
22
Measuring
Item
Test point
Adjustment part
instrument
Adjustment
8. EW-PIN
of
EW-PIN
Adjustment
10. TRAPEZ
of
TRAPEZ
Adjustment
4. VER. LINEARITY
of
5. VER. SCURVE
V-LINEARITY
&
V-SCURVE
Adjustment
9. EW-CORNER
of
EW-CORNER
Description
18. Select 8. EW-PIN with the MENU
a
key.
19. Set the initial setting value of 8. EW-PIN with the MENU
−
/
+
key.
20. Adjust EW-PIN so that the first vertical lines at the left and
right edges on the screen are straight.
21. Select 10. TRAPEZ with the MENU
a
key.
22. Set the initial setting value of 10. TRAPEZ with the MENU
−
/
+
key.
23. Adjust TRAPEZ so that the vertical lines at the left and right
edges on the screen are in parallel.
●
When the vertical linearity has been deteriorated remark-
ably, perform the following steps.
24. Receive a cross-hatch signal.
25. Select 4. VER. LINEARITY with the MENU
a
key.
26. Set the initial setting value of 4. VER. LINEARITY with the
MENU
−
/
+
key.
27. Select 5. VER. SCURVE with the MENU
a
key.
28. Set the initial setting value of 5. VER. SCURVE with the MENU
−
/
+
key.
29. Adjust VER. LINEARITY and VER. SCURVE so that the spaces
of each line on TOP, CENTER and BOTTOM become uniform.
●
Observe the vertical lines at the four corners on the screen.
If they are not straight, correct them by performing the
following steps.
30. Select 9. EW-CORNER with the MENU
a
key.
31. Set the initial setting value of 9. EW-CORNER with the MENU
−
/
+
key.
32. Adjust EW-CORNER so that the vertical lines at the four cor-
ners on the screen are straight.
(to be continued)
TOP
CENTER
BOTTOM
Straight
Parallel
