LG RT-42PX10, Service Manual

Page: 17 / 47

1) Select white pattern of heat-run mode by pressing power
on key on remote control for adjustment then operate
heat run more than 15 minute.
2) Supply 2 Gray Pattern (216 Level Full Size Pattern)
signal to VIDEO input.
(RZ-42PX10 : AV4 INPUT 50Hz
,RT-42PX10 : AV2 INPUT 50Hz)
(refer to Fig6)
3) To adjust, stick sensor to 216 Gray Level Pattern, press
ADJ key twice(White Balance) on remote control.
For adjustment and
D
,
E
on reomte control for
adjustment mode to select Red Gain and Blue Gain,
press VOL +, - Key and adjust it until color coordination
becomes as below.
X ; 0.283 ± 0.003, Y; 0.297 ± 0.003,
Color Temperature; 9,300°K ± 500°K
4) Exit adjustment mode using A Key.
4-3. Auto RGB Color Balance
(1) Pattern Equipment :
PC Pattern Generator (VG828, VG854, 801GF, MSP3240A)
(16 Gray Scale Pattern output(RGB output Level: 0.7Vp-p)
(2) Method of Auto RGB Color Balance
1) Input RGB Source : 16 Gray Scale Pattern output
(RGB output Level : 0.7Vp-p)
2) Press ADJ KEY on R/C for adjustment.
3) Press Vol. + KEY and operate To set.
4) Auto-RGB OK means completed adjustment.
4-4. Auto Component Color Balance
(1) Pattern Equipment :
MSP3240A or same product
(16 Gray Scale Pattern output(Component outputLevel: 0.7Vp-p)
(2) Method of Auto RGB Color Balance
1) Input RGB Source : Componet 480p/576p 16 Gray
Scale Pattern output
At this time, except Pb and Pr signal, only Y signal insert.
2) Press ADJ KEY on R/C for adjustment.
3) Press Vol. + KEY and operate To set.
4) Auto-RGB OK means completed adjustment
4-5. Auto Adjustment Map(RS-232C)
4-6. DDC 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 15P Cable, D-Sub to DVI Connector (Connect to DVI Jack)
(2) Setting of Device
(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) DDC Data Input for Analog-RGB
1. Put the set on the table and turn the power on.
2. Connect PC Serial to D-sub 15P Cable of jig for DDC
adjustment to RGB terminal (D-Sub 15Pin).
3. Operate S/W for DDC record and select DDC data for
Analog RGB in Model Menu.
4. Operate EDID Write command.
5. Operate EDID Read command and check whether
Check Sum is 53.
6. If Check Sum is not 53, repeat 3 ~ 4.
7. If Check Sum is 53, DDC data for Analog-RGB input
is completed.
2) DDC Data input for Digital-RGB(DVI)
1. Connect PC Serial to DVI Cable of jig for DDC
adjustment to DVI terminal (DVI Jack).
2. Operate S/W for DDC record and select DDC Data
for digital RGB in Model Menu.
3. Operate EDID Write command.
4. Operate EDID Read command and check whether
Check Sum is D2(1page), BF(2page).
5. If Check Sum is not D2(1page), BF(2page), repeat 3 ~ 4.
6. If Check Sum is D2(1page), BF(2page), DDC data for
Analog-RGB input is completed.
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fig7 Auto RGB/Component Color Balance Test Pattern
Type
Baud Rate
115200
Index
R Gain
G Gain
B Gain
R Offset
G Offset
B Offset
Data bit
8
Cmd1 Cmd2
j a
j b
j c
j d
j e
j f
Stop bit
1
Parity
NONE
Protocol
Setting
Data Min Value
00(00)
00(00)
00(00)
00(00)
00(00)
00(00)
Max Value
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
255(FF)
RF-043B_PDP42
PC PC
JIG JIG
PDP PDP
SET SET