Text preview for : Compaq MV540 CQ550F CO1075 adjustment.pdf part of Compaq mv540 Compaq MV540, CQ550F, CO1075
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GENERAL INFORMATION
All adjustment are thoroughly checked and corrected 8) Adjust V-POSITION as arrow keys to be the best
when the monitor leaves the factory, but sometimes condition.
several adjustments may be required. 9) Adjust H-SIZE as arrow keys to 265±1mm.
Adjustment should be following procedure and after 10) Adjust H-POSITION as arrow keys to be the best
warming up for a minimum of 30 minutes. condition.
11) Adjust S-PCC (Side-Pincushion) as arrow keys to be
· Alignment appliances and tools. the best condition.
- IBM compatible PC. 12) Adjust TRAPEZOID as arrow keys to be the best
- Programmable Signal Generator. condition.
(eg. VG-819 made by Astrodesign Co.) 13) Adjust parallelogram as arrow keys to be the best
- EPROM or EEPROM with saved each mode data. condition.
- Alignment Adaptor and Software. 14) Save of the system.
- Digital Voltmeter. 15) PRESET EXIT Y (Yes) command.
- White Balance Meter.
- Luminance Meter. 4. Adjustment for White Balance and Luminance.
- High-voltage Meter. 1) Set the White Balance Meter.
2) Press the DEGAUSS on the OSD menu for
AUTOMATIC AND MANUAL DEGAUSSING demagnetization of the CDT.
The degaussing coil is mounted around the CDT so that 3) COLOR ADJ. LUMINANCE command of the
automatic degaussing when turn on the monitor. But a alignment program.
monitor is moved or faced in a different direction, become 4) Display color 0,0 pattern at Mode 8.
poor color purity cause of CDT magnetized, then press 5) COLOR ADJ. BIAS ADJ. command of the
DEGAUSS on the OSD menu. alignment program.
6) Check whether green color or not at R-BIAS to 0 and
ADJUSTMENT PROCEDURE & METHOD B-BIAS to 20 position and G-BIAS to 150(96)
- Install the cable for adjustment such as Figure 1and run position. Set Sub-Brightness to 80(Decimal).
the alignment program on the DOS for IBM compatible PC. 7) Adjust FBT (Screen) volume to 1.0± 0.30FL of the
- Set external Brightness and Contrast volume to max position. raster luminance. If it's not green color, the monitor
must be repaired.
1. Adjustment for B+ Voltage. 8) Adjust R-BIAS and B-BIAS command to x=0.281±
1) Display cross hatch pattern at Mode 8. 0.010 and y=0.311 ±0.010 on the White Balance
2) Adjust voltage to 50V±0.2Vdc with VR901. Meter with PC arrow keys.
9) Adjust backraster luminance to 0.6±0.1FL by using
2. Adjustment for High-Voltage. Sub-Brightness command.
1) Display cross hatch pattern at Mode 8. 10) PRESET EXIT Y (Yes) command.
2) Adjust Hight Voltage to 24.5V±0.1 kVdc. 11) Display color 15,0 five Window pattern (50x50mm) at
Mode 8.
3. Adjustment for Factory Mode (Preset Mode). 12) DRIVE ADJ. command.
13) Set SUB-CONTRAST to 90 position.
1) Display cross hatch pattern at Mode 1~9.
14) Set G-DRIVE to 90 (decimal) at R-DRIVE and B-DRIVE
2) Run alignment program for CQ550F on the
command to x=0.281± 0.003 and y=0.311±0.003 on
IBM compatible PC.
the White Balance Meter with PC arrow keys.
3) EEPROM ALL CLEAR Y(Yes) command.
15) Adjust SUB-CONTRAST command to 55±1FL of the
Do not run this procedure unless the
raster luminance.(at EX-BRT:cut-off(0.06±0.01FL ))
EEPROM is changed. All data in EEPROM (mode 16) PRESET EXIT Y (Yes) command.
data and color data) will be erased. 17) Display color 15,0 full white patten at Mode 8.
4) Power button of the monitor turn off turn on. 18) COLOR ADJ. LUMINANCE ABL command.
5) COMMAND PRE START Y(Yes) command. 19) Adjust ABL to 33 ±1FL of the luminance.(at EX-
6) DIST. ADJ. FOS. ADJ. command. BRT:cut-off(0.06±0.01FL ))
7) Adjust V-SIZE as arrow keys to 199±1mm. 20) PRESET EXIT Y (Yes) command.
21) Exit from the program.
5. Adjustment for Color Management. 6. Adjustment for Focus.
1) Display color 15,0 Window pattern(70x70mm) at 1) Display color 15,0 "me" pattern in full screen at Mode
Mode 8. 8.
2) Measure color management data at backraster cut- 2) Adjust Focus control on the FBT that focus should
off, save it in EDID data. be the best condition.
Monitor to be
adjusted
Video IBM
Signal Compatible PC
Generator
Parallel Port
d
se
tu
2C
No
23
RS
EL
Control Line
LL
C
RA
PA
Power inlet (required)
220
Power Select Switch
R
VG
WE
S
(110V/220V)
PO
T
A MO Power LED
CS
NI
YN
TO
V-S
R
E ST Switch
B
F V-Sync On/Off Switch
(Switch must be ON.)
A
9 6
5 1
15 11
10 6
5 1
C
13 1
25 14
OFF ON
5V
F
5V
4.7K
ON 5V 4.7K
E 74LS06
OFF 4.7K
74LS06
B
Figure 1. Cable Connection
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