ADJUSTMENT
GENERAL INFORMATION
All adjustment are thoroughly checked and corrected7) Adjust tilt as arrow keys to be the best condition.
when the monitor leaves the factory, but sometimes8) DIST. ADJ. ? BALANCE command.
several adjustments may be required. 9) Adjust parallelogram as arrow keys to be the best
Adjustment should be following procedure and aftercondition.
warming up for a minimum of 30 minutes. 10) Adjust balance of pin-balance as arrow keys to be
the best condition.
Y Alignment appliances and tools.11) DIST. ADJ. ? FOS. ADJ command.
- IBM compatible PC.
12) Adjust V-SIZE as arrow keys to 230?2mm.
- Programmable Signal Generator.
13) Adjust V-POSITION as arrow keys to center of the
(eg. VG-819 made by Astrodesign Co.)
screen.
- EPROM or EEPROM with saved each mode data.
14) Adjust H-SIZE as arrow keys to 310?2mm.
- Alignment Adaptor and Software.
15) Adjust H-POSITION as arrow keys to center of the
- Digital Voltmeter.
- White Balance Meter.screen.
- Luminance Meter.16) Adjust S-PCC (Side-Pincushion) as arrow keys to be
- High-voltage Meter.the best condition.
17) Adjust TRAPEZOID as arrow keys to be the best
AUTOMATIC AND MANUAL DEGAUSSINGcondition.
The degaussing coil is mounted around the CDT so that18) Save of the Mode 1.
automatic degaussing when turn on the monitor. But a19) Display from Mode 2 to 4 and repeat above from
monitor is moved or faced in a different direction, becomenumber 12) to 19)
poor color purity cause of CDT magnetized, then press
20) PRESET EXIT ? Y (Yes) command.
DEGAUSS on the OSD menu.
4. Adjustment for White Balance and Luminance.
ADJUSTMENT PROCEDURE & METHOD1) Set the White Balance Meter.
-Install the cable for adjustment such as Figure 1and run
2) Press the DEGAUSS on the OSD menu for
the alignment program on the DOS for IBM compatible PC.
demagnetization of the CDT.
-Set external Brightness and Contrast volume to max position.
3) COLOR ADJ. ? LUMINANCE command of the
alignment program.
1. Adjustment for B+ Voltage.
4) Set Brightness and Contrast to Max position.
1) Display cross hatch pattern at Mode 4.
5) Display color 0,0 pattern at Mode 4.
2) Check C961 (+) voltage to 50? 0.5Vdc.
6) COLOR ADJ.? BIAS ADJ.? COLOR No. ? 1
command of the alignment program.
2. Adjustment for High-Voltage.
7) Check whether green color or not at R-BIAS and G-
1) Display cross hatch pattern at Mode 4.
BIAS to min position and B-BIAS to 127(7F) and
2) DIST.ADJ? CTRL PWM ? High Voltage Command.
Sub-Brightness to 177(B1) position. Adjust G2
3) Adjust High Voltage to 25.5kV?0.1 kVdc.
(screen) command to 0.4? 0.05FL of the raster
4) Press Enter Key.
luminance.
8) Adjust R-BIAS and G-BIAS command to x=0.283?
3. Adjustment for Factory Mode (Preset Mode).
0.005 and y=0.298?0.005 on the White Balance
1) Display cross hatch pattern at Mode 1.
Meter with PC arrow keys.
2) Run alignment program for EB770G on the IBM
9) Adjust SUB-Brightness command to 0.4?0.1FL of the
compatible PC.
raster luminance.
3) EEPROM ? ALL CLEAR ? Y(Yes) command.
10) Adjust repeat number 8).
<Caution>Do not run this procedure unless the
11) After push the OENTER � key, and OCOMMAND ?
EEPROM is changed. All data in EEPROM (mode
PRESET EXIT ? Y(Yes)� command.
data and color data) will be erased.
12) Display color 15,0 full white pattern at Mode 4.
4) Power button of the monitor turn off ? turn on.
13) DRIVE ADJ.? No 1. command.
5) COMMAND ? PRESET START ? Y(Yes) command.
6) DIST. ADJ. ? CTRL PWM ? TILT command.
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ACEC
