ADJUSTMENT
GENERAL INFORMATION
All adjustment are thoroughly checked and corrected12) DIST. ADJ. ? FOS. ADJ command.
when the monitor leaves the factory, but sometimes
13) Adjust V-SIZE as arrow keys to 230?2mm.
several adjustments may be required. 14) Adjust V-POSITION as arrow keys to center of the
Adjustment should be following procedure and after
warming up for a minimum of 30 minutes. screen.
15) Adjust H-SIZE as arrow keys to 310?2mm.
16) Adjust H-POSITION as arrow keys to center of the
Y Alignment appliances and tools.
- IBM compatible PC.screen.
- Programmable Signal Generator. 17) Adjust S-PCC (Side-Pincushion) as arrow keys to be
the best condition.
(eg. VG-819 made by Astrodesign Co.)
- EPROM or EEPROM with saved each mode data.18) Adjust TRAPEZOID as arrow keys to be the best
- Alignment Adaptor and Software.condition.
- Digital Voltmeter.19) Display from Mode 1 to Mode 10 and repeat above
- White Balance Meter.from number 13)to 18).
- Luminance Meter.20) PRESET EXIT ? Y (Yes) command.
- High-voltage Meter.
4. Adjustment for White Balance and Luminance.
AUTOMATIC AND MANUAL DEGAUSSING1) Set the White Balance Meter.
The degaussing coil is mounted around the CDT so that
2) Press the DEGAUSS on the OSD menu for
automatic degaussing when turn on the monitor. But ademagnetization of the CDT.
monitor is moved or faced in a different direction, become
poor color purity cause of CDT magnetized, then press 3) COLOR ADJ. ? LUMINANCE command of the
alignment program.
DEGAUSS on the OSD menu.4) Set Brightness and Contrast to Max and ABL to
ADJUSTMENT PROCEDURE & METHOD200(C8) (decimal) position.
5) Display color 0,0 pattern at Mode 9.
-Install the cable for adjustment such as Figure 1and run
the alignment program on the DOS for IBM compatible PC. 6) COLOR ADJ. ? BIAS ADJ. command of the
-Set external Brightness and Contrast volume to max position.alignment program.
7) Check whether green color or not at R-BIAS and B-
1. Adjustment for High-Voltage. BIAS to min position and G-BIAS to 127(7F) to
1) Run alignment program for CN772C on the IBM position. Adjust G2(Screen) command to 0.4?
compatible PC.0.05FL of the raster luminance. Check it's not green
2) Display cross hatch pattern at Mode 9.color.
3) DIST.ADJ? CTRL PWM ? High Voltage Command.8) Adjust R-BIAS and B-BIAS command to x=0.281?
4) Adjust High Voltage to 25.5kV?0.1 kVdc.
0.005 and y=0.311?0.005 on the White Balance
5) Press Enter Key.Meter with PC arrow keys.
9) Adjust SUB-Brightness command to 0.4?0.1FL of the
2. Adjustment for Factory Mode (Preset Mode).
1) Display cross hatch pattern at Mode 1~10.raster luminance.
10) Display color 15,0 box pattern (70x70mm) at Mode 9.
2) Run alignment program for CN772C on the IBM
compatible PC.11) DRIVE ADJ command.
3) Power button of the monitor turn off ? turn on.12) Set SUB-Contrast 70(46) (decimal) position.
4) EEPROM? ALL CLEAR ? Y(Yes) command 13) Set B-DRIVE to 150(96) (decimal) at DRIVE of the
5) COMMAND ? START ? Y(Yes) command.alignment program.
6) DIST. ADJ. ? CTRL PWM ? TILT command. 14) Adjust R-DRIVE and G-DRIVE command to white
7) Adjust tilt as arrow keys to be the best condition.balance x=0.281?0.003 and y=0.311?0.003 on the
8) DIST. ADJ. ? BALANCE command.White Balance Meter with PC arrow keys.
9) Adjust balance of side-pincushion as arrow keys to 15) Adjust SUB-CONTRAST command to 50?2FL of the
be the best condition.
10) DIST. ADJ. ? BALANCE command. color 15,0 box pattern (50x50mm) luminance at
mode 9 and save in color 1.
11) Adjust parallelogram as arrow keys to be the best
condition.
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ACEC
