ADJUSTMENT
- 14 -
GENERAL INFORMATION
All adjustment are thoroughly checked and corrected
when the monitor leaves the factory, but sometimes
several adjustments may be required.
Adjustment should be following procedure and after
warming up for a minimum of 30 minutes.
• Alignment appliances and tools.
- IBM compatible PC.
- Programmable Signal Generator.
(eg. VG-819 made by Astrodesign Co.)
- EPROM or EEPROM with saved each mode data.
- Alignment Adaptor and Software.
- Digital Voltmeter.
- White Balance Meter.
- Luminance Meter.
- High-voltage Meter.
AUTOMATIC AND MANUAL DEGAUSSING
The degaussing coil is mounted around the CDT so that
automatic degaussing when turn on the monitor. But a
monitor is moved or faced in a different direction, become
poor color purity cause of CDT magnetized, then
press
DEGAUSS on the OSD menu.
ADJUSTMENT PROCEDURE & METHOD
-Install the cable for adjustment such as Figure 1and run
the alignment program on the DOS for IBM compatible PC.
-Set external Brightness and Contrast volume to max position.
1. Adjustment for High-Voltage.
1) Display cross hatch pattern at Mode 8.
2) Adjust Anode voltage to 26kV
+
0.1kV.
2. Adjustment for Factory Mode (Preset Mode).
1) Display cross hatch pattern at Mode 8.
2) Run alignment program for FS772C on the
IBM compatible PC.
3) EEPROM→ALL CLEAR→Y(YES) command.
※ <Caution> Do not run this procedure unless the
EEPROM is changed.
All data in EEPROM (mode data and color data)will
be erased.
4) Power button of the monitor turn off → turn on.
5) COMMAND → START → Y(Yes) command.
6) DIST. ADJ. → TILT command.
7) Adjust tilt as arrow keys to be the best condition
8) DIST. ADJ. → BALANCE command.
9)
Adjust parallelogram as arrow keys to be the best
condition.
10)DIST. ADJ. → BALANCE command.
11) Adjust balance of side-pincushion as arrow keys to
be the best condition.
12)
DIST. ADJ. → FOS. ADJ command.
13)
Adjust V-SIZE as arrow keys to 230±2mm.
14)
Adjust V-POSITION as arrow keys to center of the
screen.
15)
Adjust H-SIZE as arrow keys to 310±2mm.
16)
Adjust H-POSITION as arrow keys to center of the
screen.
17)
Adjust S-PCC (Side-Pincushion) as arrow keys to be
the best condition.
18)
Adjust TRAPEZOID as arrow keys to be the best
condition.
19)
PRESET EXIT → Y (Yes) command.
3. Adjustment for White Balance and Luminance.
1) Set the White Balance Meter.
2)
Press the DEGAUSS on the OSD menu for demagnetization
of the CDT.
3) Set Brightness max and SUB-Brightness to 130(82)
(Decimal) position.
4) Display color 0,0 pattern at Mode 8.
5) COLOR ADJ. → LUMINANCE command of the
alignment program.
6) COLOR ADJ. → BIAS ADJ. command of the
alignment program.
7) Check whether R-BIAS and B-BIAS to min position
and G-BIAS to 0.7±0.05FL of the raster luminance.
Check it's not green color.
8) Adjust R-BIAS and B-BIAS command to x=0.283
±
0.02 and y=0.298±0.02 on the White Balance Meter
with PC arrow keys.
9) Adjust SUB-Brightness command to 0.5
±
0.1FL of the
raster luminance.
10)
Display color 15,0 window pattern (70x70mm) at Mode 8.
11)
Set Contrast max and SUB-Contrast to 127(7F)
(decimal) position.
12)
DRIVE ADJ command.
13)
Set G-DRIVE to 170(AA) (decimal) at DRIVE of the
alignment program.
14)
Adjust R-DRIVE and B-DRIVE command to white
balance x=0.283
±
0.02 and y=0.298±0.02 on the
White Balance Meter with PC arrow keys.
15)
Adjust SUB-CONTRAST command to 52±1FL of the
raster luminance at the save in color 1.