AOpen A70PF, Service Manual

Page: 9 / 35

A70PF(RX-777NS) 9 / 33
ITEM
Program Menu.
﹟
Test Meter
﹡
Test Point
﹫
Pattern
Operation
Adjusting
Value
H
Dynamic
Focus
Adjust
﹟
Oscilloscope
﹡
FBT Pin14
﹫
Full White
(31.5KHz,640x480)
1. Set the contrast to MAX.,and adjustment
Brightness to the raster just appear.
2. Make the adjustment to the value shown at right
by adjust the VF on the OSD menu.
3. Make the check to the value shown at right by
adjust the HF on the OSD menu.
VF :
150(17”)
±
10V
P-P
HF :
350(17”)
±
10V
P-P
I
Purity
Adjust
﹫
Magenta color
(31.5KHz,640x480)
1. Adjust the purity magnet is in magneta color.
2. Turning two overlapping pawels in opposite
directions.
3. Move them until they are at the same angle,
9 o’clock and 3 o’clock respectively.
J
Static
Convergence
Adjust
﹫
Magenta color
(31.5KHz,640x480)
1. Open the two pawels of the 4 pole magnets to
allow the red and blue vertical lines to unite.
2. Open and rotate the two pawels at a contrast
angle so that the red and blue horizontal lines
can unite.
3. If the vertical lines deviates,open the two powals
at the deviation position and make a monitor
adjustment by changing its angle.
4. Display white crosshatch pattern.
5. Make the red and blue vertical lines at the
center unite with the green by opening the two
6 pole pawels.
6. Rotate the two pawels at contrast angle so that
the red and blue horizontal lines can unite with
the green.
7. If the vertical lines deviate,change the angle of
Pawels from the deviation position.