Specifications

17" CDT Color Monitor AOC FT720
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(c) Adjust G-Gain , B-Gain , R-Gain , to make color temperature x=281 ±10, y=311
± 10, Y= 45±1Fl.
C. Recheck item A&B to make sure both of them in spec. Finally select OSD function to the 9300°K
function, then press the MENU Key. To make the setting data saved in the memory.
D. The adjustment of 6500°K white Balance, May follow step A ~ C , with the x=313 ± 10, y=329 ± 10,
Y=45±1Fl.
E. The adjustment of RGB white balance, May follow step A ~ C , with the x=313 ± 10, y=329 ± 10, Y=
45±1Fl.
F. Full white luminance:
(a) Set mode6 1024×768 @ 85Hz full white pattern.
(b) Image Size : H:310±4mm V:220±4mm.
(c) Brightness set to raster just cut off and set the contrast to max.
(d) Adjust VR701 to the luminance at 30± 1Fl.
G. About the HB model, please follow step B~F to adjustment the gain and full white luminance. And the
value of ‘Y’ as below(There are not 6500°K color of INTERNET and VIDEO model):
Y=60±1Fl( gain of INTERNET model), Y=130±1Fl(gain of VIDEO model)
Y=34±1Fl( full white luminance of INTERNET model), Y=37±1Fl(full white luminance of VIDEO model)
4. Focus Adjustment:
A. Set mode6 1024×768@85Hz with character full page.
B. Adjust brightness to center and contrast to max.
C. Then adjust focus VR1 to a fine vertical line.
D. Adjust focus VR2 to a fine horizontal line.
E. Repeat step C & D.
5. Purity Adjustment
A. Be sure that the display is not being exposed to any external magnetic fields.
B. Ensure that the spacing between the Purity, Convergence, Magnet, (PCM), assembly and the CRT
stem is 29mm. (See below diagram)
C. Produce a complete, red pattern on the display. Adjust the purity magnet rings on the PCM assembly to
obtain a complete field of the color red. This is done by moving the two tabs in such a manner that they
advance in an opposite direction but at the same time to obtain the same angle between the two tabs,
which should be approximately 180'.
D. Check the complete blue and complete green patterns to observe their respective color purity. Make
minor adjustments if needed.
RELATIVE PLACEMENT OF TYPICAL COMPONENTS
Purity Magnets
Deflection Yoke
4-pole Convergence Magnets
6-pole Convergence Magnets
6. Convergence adjustment
A. Produce a magenta crosshatch on the display.
B. Adjust the focus for the best overall focus on the display.
Also adjust the brightness to the desired condition.
C. Vertical red and blue lines are converged by varying the angle between the two tabs of the 4 pole
magnets on the PCM assembly. (See above diagrams)
D. Horizontal red and blue lines are converged by varying the two tabs together, keeping the angle
between them constant.
E. Produce a white crosshatch pattern on the display.
F. Vertical green and magenta lines are converged by varying the angle between the two tabs of the 6-
pole magnets.
G. Horizontal green and magenta lines are converged by varying the two tabs together, keeping the angle
between them constant.
英华家电维修资料专用 QQ:505966338