LG DU-42PY10X Service Manual page 16

[ [ . RS-232C Command
(Automatic Adjustment)
RS-232C Command
[CMD ID DATA]
R Gain ja oo XX
G Gain jb oo XX
B Gain jc oo XX
R Cut lj oo XX
G Cut lk oo XX
B Cut ll oo XX
12-3. Adjustment of White Balance
O Operate the Zero-calibration of the CA-100, then attach
sensor to PDP module surface when you adjust.
O Manual adjustment is also possible by the following sequence.
(1) Enter 'Ez - Adjust' by pressing ADJ KEY on the Service
Remote Control.
(2) Select "7. WHITE PATTERN" using CH +/- Key and HEAT
RUN at least 30 minutes by pressing the ENTER Key.
(3) Receive the Window pattern signal from Digital Pattern
Generator. (AV Input: connect the 'HDMI')
(4) After attaching sensor to center of screen, select '3. White-
Balance' of 'Ez - Adjust' by pressing the ADJ KEY on the
Service R/C. Then enter adjustment mode by pressing the
Right KEY (G) .
(5) Adjust the Hight Light using R Gain/B Gain and adjust the
Low Light using G Cut/B Cut.
(6) Adjust using Volume +/- KEY.
(R-Gain: 127 R-Cut: 63 Fix.)
High Level: 150gray
Low Level: 60gray
X; 0.285±0.003
Y; 0.285±0.003
Color temperature: 9,800°K±500°K
(7) After adjustment is complete, move to Ez - Adjust screen
by pressing the ENTER(Y) KEY. Then exit the adjustment
mode by press ADJ KEY.
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ADJUSTMENT INSTRUCTIONS
CENTER
MIN MAX
(DEFAULT)
00 7f ff
00 7f(Fix.) ff
00 7f ff
00 3f(Fix.) 7f
00 3f 7f
00 3f 7f
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13. Main/Sub Contrast Adjustment
Main/Sub contrast adjustment reduces the contrast difference
of Main/Sub screen in PIP/POP/SPLIT Screen.
(1) After receiving signal for at least 1 second, press the ADJ
KEY on the Service R/C and enter the 'Ez - Adjust' then
select '2. VPX3226'.
Enter adjustment mode by pressing the Right KEY(G).
(2) When entering adjustment mode, the TV image becomes
6CH SPLIT Screen with automatic movement as in below
window.
(3) After adjusting the 1.Contrast (Main) first to see the most
clear outline of "US 6CH" letter on left Main screen,
2.Contrast (Sub) adjust to be same the contrast of right
Sub screen and contrast of left Main screen.
This time adjust using the volume +/- Key.
(4) After adjustment is complete, exit the adjustment mode by
press ADJ KEY.
14. DVCO Adjustment
(1) After adjusting Main/Sub Contrast, receive a Digital
Pattern.
(2) Select '4. DVCO-Set' by pressing the ADJ KEY on the
Service R/C and adjust by pressing the Right KEY (G) .
(3) When adjustment is complete, "DVCO-Set" will appear.
Exit the adjustment mode menu by pressing ADJ key.