JVC AV28R100EKS, Service Manual

Page: 61 / 93

No. 51754
AV-29RF6
29
Item
Measuring
instrument
Test point Adjustment part Description
Adjustment
of TRAPEZ
Signal
generator
Remote
control unit
7.TRAPEZ
21. Input the cross-hatch signal.
22. Select 7.TRAPEZ with the MENU UP/DOWN key.
23. Set the initial setting value of TRAPEZ with the MENU
LEFT/RIGHT key.
24. Adjust TRAPEZ and bring the vertical lines at the right and left
edges of the screen parallel .
25. Press the OK key and memorize the set value.
Adjustment of
EW. COR. L/H
Signal
generator
Remote
control unit
8.EW. COR. L
9.EW. COR. H
26. Select 8.EW. COR. L with the MENU UP / DOWN key.
27. Set the initial setting value of EW. COR. L with the MENU
LEFT/RIGHT key.
28. Adjust EW. COR. L, and bring the line to straight at the corner
of the screen bottom.
29. Select 9.EW. COR. H with the MENU UP / DOWN key.
30. Set the initial setting value of EW. COR. H with the MENU
LEFT/RIGHT key.
31. Adjust EW. COR. H, and bring the line to straight at the corner
of the screen top.
32. Press the OK key and memorize the set value.
Adjustment
of V-S.CR &
V.LINEARITY
Signal
generator
Remote
control unit
10. V-S.CR
11. V-LIN
● ● ● ●
In case when the vertical linearity has been deteriorated
remarkably, perform the following steps.
33. Input the cross-hatch signal.
34. Select 11.V-LIN with the MENU UP/DOWN key.
35. Set the initial setting value of 11.V-LIN with the MENU
LEFT/RIGHT key.
36. Select 10.V-S.CR with the MENU UP / DOWN key.
37. Set the initial setting value of 10.V-S.CR with the MENU
LEFT/RIGHT key.
38. Adjust 11.V-LIN and 10.V-S.CR so that the spaces of each line
on top, center and bottom become uniform.
Parallel
TOP
CENTER
BOTTOM
Straight Straight