LG MW-60SZ12 Service Manual page 12

11. Component Gain Adjustment
(1) Required Test Equipments
1) Signal(DTV Signal 31-3)
2) SET-TOP box( or an equipment which can generate YPbPr
output receiving DTV signal)
3) A Remote Control for Adjustment
(2) Sequence of Adjustment
1) Press the TV/AV key on the R/C for adjustment to select
component input.
2) Input DTV signal 31-3 into component input.
3) Press the IN-START key on the R/C for adjustment to
select '2101 color control1' in menu.
4) Raise the 2101 picture value to the maximum.
5) Use the 2101 subbright value and adjust lower 2 gradation
of Gray bar not to be distinguished.
6) Press the IN-START key on R/C for adjustment again to
select '2101 color control2' in adjustment menu.
7) Use the Driver G Gain and adjust 2101 G Gain so that all
gradation(11gradation) of upper Gray bar are distin-
guished.
Adjust 2101 G Gain
so that all lumination
are distinguished.
Adjust subbright
so that 2 lumination
are not to be
distinguished.
8) Make the Driver B value same with Driver G value and
make the Driver R value higher(2) than Driver G.
9) Press the ENTER key on R/C for adjustment to store the
adjustment value when the adjustment is finished.
12. EDID Data INput
(1) Required Test Equipments
1) A JIg for adjusting PC,DDC.(PC serial to D-sub.connection
equipment)
2) SW for writing DDC(EDID data write & read)
3) D-sub terminal
4) D-sub /DVI conversion connector
(2) Setting of Devices
PC
(3) Preparation for Adjustment
1) Set devices as above and turn the PC,jig on.
2) Put the S/W for writing DDC(EDID datawrite&read)into
operation.(Operated in DOS mode.)
JIG
(4) Sequence of Adjustment
1) Turn the set on and set the input to RGB1 and then con-
nect D-sub to RGB1 input terminal.
2) nput the product code, production week/year, serial num-
ber (if it is not input, write "01") to the S/W for writing DDC.
3) Select '60RPM_A' out of DDC file.
4) Operate the EDID write command and check the
60RPM_A is writed well through the Read command.
5) Connect the DVI conversion connector to D-sub and
RGB3(DVI) input terminal of set.
6) Set the Input selection to RGB3.
7) Select '60RPM_D' out of DDC file.
8) Operate the EDID Write command and check the
60RPM_D is writed well through the Read command.
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