Adjustment - LG Flatron LCD 575LE Service Manual

All adjustment are thoroughly checked and corrected
when the monitor leaves the factory, but sometimes
several minor adjustment may be required.
Adjustment should be following procedure and after
warming up for a minimum of 10 minutes.
Alignment appliances and tools.
- IBM Compatible PC
- Programmable Signal Generator.
(eg. VG-819 made by Astrodesign Co.)
- E(E)PROM with each mode data saved.
- Alignment Adapter and Software.
1. Adjustment for Factory Preset Mode
1) Run alignment program for LB565C, LB565D, LM565D
on the IBM PC.
2) Select EEPROM ALL Init command and Enter.
3) Display cross hatch pattern at Mode 1.
4) Select FOS DEFAULT command and Enter.
5) Press "Y" key, it will automatically save all FOS data
to EEPROM.
IBM
Compatible PC
C
A
Power LED
E ST Switch
B
F V-Sync On/Off Switch
(Switch must be ON.)
Figure 1. Cable Connection

ADJUSTMENT

2. Adjustment for White Balance
1) Display color 0,0 pattern at Mode 12.
2) Set External Bright to MAX position and Contrast to
MAX Position.
3) PRESET START command and Enter.
4) BIAS CAL command and Enter.
5) No attempt to manually adjust, BIAS data is auto-
matically adjusted and saved to the EEPROM.
6) Display color 15,0 pattern at Mode 12.
7) Select DRIVE CAL command and Enter.
8) Color 1 (9300K) and Color 2 (6500K) are
automatically adjusted and saved to the EEPROM.
9) Select PRESET EXIT command and Enter.
3. DDC Data Write Procedure
1) Use this procedure only when there is some
probelm on EDID data.
2) Select EEPROM → EDID Write command and
Enter.
3) This will write the EDID data to EEPROM.
15
PARALLEL PORT
OFF
5V
F
Power inlet (required)
Power Select Switch
(110V/220V)
A
9 6
5 1
11
10
6
5 1
13
25
ON
ON
E
OFF
B
C
1
14
5V
4.7K
4.7K
5V
74LS06
4.7K
74LS06