LG L3200A Service Manual - Page 11

Adjustment - l3200tc

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ADJUSTMENT 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. (CA-110) 1. DDC Data Write Procedure-Analog 1) Use this procedure only when there is some problem on Analog EDID data. 2) Run alignment program for L3200TC on the IBM compatible PC. 3) Select EEPROM → Analog EDID write command and Enter. 4) This will write the Analog EDID data to EEPROM. 2. DDC Data Write Procedure-Digital 1) Use this procedure only when there is some problem on Digital EDID data. 2) Run alignment program for L3200TC on the IBM compatible PC. 3) Select EEPROM → Digital EDID write command and Enter. 4) This will write the Digital EDID data to EEPROM. RS-232C EXT. Control Line IBM Compatible PC 15 10 5 Parallel Port Not used RS232C PARALLEL C VGS A MONITOR B V-SYNC ST POWER OFF ON 5V F Power inlet (required) 220 Power Select Switch (110V/220V) Power LED E ST Switch F V-Sync On/Off Switch (Switch must be ON.) A 9 11 5 6 1 6 1 13 25 C 1 14 ON E OFF 5V 4.7K 5V 4.7K 4.7K 74LS06 74LS06 B Figure 1. Cable Connection - 11 -

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- 11 -
ADJUSTMENT
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. (CA-110)
1.
DDC Data Write Procedure-Analog
1) Use this procedure only when there is some
problem on Analog EDID data.
2) Run alignment program for L3200TC
on the IBM
compatible PC.
3) Select EEPROM
→
Analog EDID write command
and Enter.
4)
This will write the Analog EDID data to EEPROM.
2.
DDC Data Write Procedure-Digital
1) Use this procedure only when there is some
problem on Digital EDID data.
2) Run alignment program for L3200TC on the IBM
compatible PC.
3) Select EEPROM
→
Digital EDID write command
and Enter.
4)
This will write the Digital EDID data to EEPROM.
EXT.
220
IBM
Compatible PC
Parallel Port
Power inlet (required)
Power LED
ST Switch
Power Select Switch
(110V/220V)
Control Line
Not used
RS232C
PARALLEL
V-SYNC
POWER
ST
VGS
MONITOR
E
V-Sync On/Off Switch
(Switch must be ON.)
F
A
B
C
5V
E
F
A
B
C
15
10
5
5
6
9
1
1
1
14
13
25
6
5V
5V
4.7K
4.7K
4.7K
74LS06
74LS06
OFF
ON
OFF
ON
11
Figure 1. Cable Connection