ADJUSTMENT
GENERAL INFORMATION
All adjustment are thoroughly checked and corrected3) EEPROM ? ALL CLEAR ? Y(Yes) command.
when the monitor leaves the factory, but sometimes<Caution>Do not run this procedure unless the
several adjustments may be required. EEPROM is changed. All data in EEPROM (mode
Adjustment should be following procedure and after
data and color data) will be erased.
warming up for a minimum of 30 minutes.
4) COMMAND ? PRESET START ? Y(Yes)
command.
Y Alignment appliances and tools.
5) DIST. ADJ.? FOS. ADJ command.
- IBM compatible PC.
6) Adjust H-POSITION as arrow keys to center of the
- Programmable Signal Generator.
screen.
(eg. VG-819 made by Astrodesign Co.)
7) Adjust H-SIZE as arrow keys to 310 ? 2mm.
- EPROM or EEPROM with saved each mode data.
8) Adjust V-POSITION as arrow keys to center of the
- Alignment Adaptor and Software.
screen.
- Digital Voltmeter.
9) Adjust V-SIZE as arrow keys to 230 ? 2mm.
- White Balance Meter.
10) Adjust TRAPEZOID as arrow keys to be the best
- Luminance Meter.
condition.
- High-voltage Meter.
11) Adjust TILT as arrow keys to be the best condition.
12) Display cross hatch pattern at Mode 4.
AUTOMATIC AND MANUAL DEGAUSSING
13) DIST. ADJ.? BALANCE DATA command.
The degaussing coil is mounted around the CDT so that
14) Adjust balance of Pin-Balance as arrow keys to be
automatic degaussing when turn on the monitor. But a
the best condition.
monitor is moved or faced in a different direction, become
15) Adjust parallelogram as arrow keys to be the best
poor color purity cause of CDT magnetized, then press
condition.
DEGAUSSING on the OSD menu.
16) Save of the Mode.
17) Save of the System.
18) Display from Mode 4 and repeat above from
ADJUSTMENT PROCEDURE & METHOD
number 6) to 15).
19) COMMAND ? PRESET EXIT? Y (Yes) command.
-Install the cable for adjustment such as Figure 1and run
the alignment program on the DOS for IBM compatible PC.
5. Adjustment for White Balance and Luminance.
-Set external Brightness and Contrast volume to max position.
1) Set the White Balance Meter.
+ 2) Press the DEGAUSSING on the OSD menu for
1. Adjustment for BVoltage.
demagnetization of the CDT.
1) Display cross hatch pattern at Mode 4.
3) Display color 0,0 pattern at Mode 4.
2) Adjust C921 (+) voltage to 192V ?VR9010.2V with .4) COMMAND ? PRESET START ? Y(Yes)
command.
2. Adjustment for High-Voltage. 5) Set Bightness and Contrast to max position.
6) COLOR ADJ.? LUMINANCE command of the
1) Display cross hatch pattern at Mode 4.
alignment program.
2) Adjust CDT Anode voltage to 26kV ? 0.2kV with
7) COLOR ADJ.? BIAS ADJ. command of the
VR801.
alignment program.
8) Check whether blue color or not at R-BIAS and G-
3. Adjustment for Horizontal Raster Center.
BIAS to min position, Sub-Brightness to 90 position,
1) Display cross hatch pattern at Mode 4.B-BIAS to 75 position. If it's not blue color, the
2) Adjust the Back Raster should be center of themonitor must repair.
screen with SW801.9) Adjust Screen control on the FBT to 0.15 ? 0.02FL
of the raster luminance.
4. Adjustment for Factory Mode (Preset Mode).10) Adjust R-BIAS and G-BIAS command to x=0.283 ?
0.006 and y=0.298 ? 0.006 on the White Balance
1) Display cross hatch pattern at Mode 1~4.
Meter with PC arrow keys.
2) Run alignment program for FB790G on the IBM
compatible PC.
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