Adjustment - LG FPD2200 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 30 minutes.
• Alignment appliances and tools.
- IBM compatible PC
- Programmable Signal Generator.
(eg. VG-819 made by Astrodesign Co.)
- Oscilloscope.
- White Balance Meter
1. Adjustment for Factory Preset Mode
No read to adjust FOS data for Factory Preset Mode.
2. Adjustment for White Balance
1) Set External Bright to MAX position and Contrast to
MAX position.
2) Display Color 0,0 pattern at Mode 8.
3) Press Menu key, 2 key, 9 key, 5 key of Remote
controller in sequence.
4) Select "WHITE BALANCE ADJUST" and Press SET
key.
5) After "INPUT WHITE PATTERN" message, Display
Color 15, 0 pattern at Mode 8.
DC15V S-Video Video Sound PC Audio Audio ANT
D IN L R IN L R

ADJUSTMENT

IBM
Compatible PC
C
A Power LED
E
ST Switch
B
F V-Sync On/Off Switch
DVI-D Connector
(Switch must be ON.)
Figure 1. Cable Connection
6) No attempt to manually adjust, BIAS and Drive data
is automatically adjustde and saved to the EEPROM.
7) After "OK" message, Press SET KEY.
8) Select "SERVICE MODE EXIT" and Press SET KEY.
3. DDC Data Write Procedure-Analog
1) Use this procedure only when there is some
problem on Analog EDID data.
2) Run alignment program for LM295B on the IBM
compatible PC.
3) Select EEPROM → Analog EDID write command
and Enter.
4) This will write the Analog EDID data to EEPROM.
4. DDC Data Write Procedure-Digital
1) Use this procedure only when there is some
problem on Digital EDID data.
2) Run alignment program for LM295B on the IBM
compatible PC.
3) Select EEPROM → Digital EDID write command
and Enter.
4) This will write the Digital EDID data to EEPROM.
A
15
10
5
Parallel Port
OFF ON
5V
F
Power inlet (required)
Power Select Switch
(110V/220V)
B
- 16 -
9 6
1
5
11
6
1
13
25
5V
ON
5V
E
4.7K
OFF
74LS06
C
1
14
4.7K
4.7K
74LS06