LG RT-44SZ80LB Service Manual page 18

(4) Adjustment Sequence
1) Adjust the screen coordinates as shown below.
0 1 2 3 ............xx..........15 16
1
.
yy
.
11
12
2) Output the VDP TEST PATTERN signal correspond to the
Max value.
Read the white coordinates and communicate 3 line with
ET7050 IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color
uniformity of max point.
At this time, make sure that deviation is +5~-5% and
standard is color coordinate of center.
3) Output the VDP TEST PATTERN signal correspond to the
MID value.
Read the white coordinates and communicate 3 line with
ET7050 IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color
uniformity of mid point.
At this time, make sure that deviation is +5~-5% and
standard is color coordinate of center.4) Output the VDP
TEST PATTERN signal correspond to the MIN value.
Read the white coordinate and communicate with ET7050
IC through measurement equipment of optics.
Adjust screen coordinates data to adjust the color
uniformity of miner point.
At this time, make sure that deviation is +5~-5% and
standard is color coordinate of center.
5) White the miner, middle, maximum data for each point to
confront to each MICOM address.
9. EDID Data Input
(1) Required Test Equipment
1) A jig for adjusting PC, DDC (PC serial to D-sub Connection
equipment).
2) S/W for writing DDC (EDID Data Write & Read).
3) D-sub Connection.
(2) Setting of Device
PC PC
(3) Preparation for Adjustment
1) Set devices as above and turn the PC, jig on.
2) Put S/W for writing DDC (EDID data Write & Read) into
operation. (operated in DOS mode.)
(4) Sequence of Adjustment
1). Put the set on the table and turn the power on.
SET SET
JIG JIG
2). Input the code(Product Code), production week/year,
Serial number(If it is not input write Ò01Ó) to the S/W for
writing DDC.
3. Operate EDID Write command.
10. Check and adjustment RGB Alignment
(1) Required Test Equipments
A remote control of adjustment
(2) Preparation for Adjustment.
1) Connect power source with TV Set and turn TV Set on.
2) Before adjusting, Heat Run more than 15 minutes.
(3). Check and adjustment RGB Alignment
1) After pressing EVE key, enter the <Fig4.> pattern..
2) Check the RGB Align.
3) When fitting RGB Align, adjustment is completed.
4) When devising RGB align, select the 7. H-Positing by
<Fig 4> Pattern for screen adjustment
<Fig5.After adjusting RGB Align(normal screen)
pressing ÒADJÓ key on the Remote Control for Adjustment.
Change the Channel key to select H POS R, H POS G,H
POS B and lit color.
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