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NEC MultiSync FE700 Serviceanleitung Seite 86

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(5) Receive signal 20 ,all green "ョ" pattern.
(6) Make sure that the horizontal line of "ョ" can be seen separately at whole area of screen.
(7) Repeat above inspection for white "ョ" patterns.
(8) If this focus condition is bud, return to (1).
(9) Receive Signal 20, all green cross hatch pattern.
(10) The width of the vertical and horizontal lines should be meet to the following standard:
Vertical line :
Horizontal line :
Horizontal
(11) Repeat above inspection for Red and Blue cross hatch patterns.
(12) If this Halo condition is bud, return to (1).
7. CRT Convergence
Signal : No. 33 (512*768@85Hz) Cross Hatch Pattern
(1) The CRT face should be facing east and degauss the entire unit with an external degaussing coil.
(2) Receive the cross hatch pattern of signal 33 and make sure that the screen size is following
values :
H : 315 ± 8 mm V : 236 ± 8 mm
(3) Measuring the misconvergence. If not with the following specification, adjust the static convergence
by using the 4-pole / 6-pole magnets and some VRs on the CPM assembly.
|x| ≦ 0.32 mm
Less than 6 grills
Core : Halo = 1 : less than 1.5
Core
Halo
Fig 6-3 Halo
|y| ≦ 0.32 mm
236±8mm
Fig 7-1 Convergence
Vertical
6 grills
y
x
315±8mm
5-21

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