LG 60PY3D Service Manual page 9

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7. Adjustment of White Balance
7-1. Required Test Equipment
(1) Color Analyzer : CA-210 (CH 9)
=> To adjust color temperature of LCD, CS-1000 is the
Color Analyzer(CA-210) and should be set to use CH 9
in which white, red, green, and blue color are corrected.
Conduct the adjustment according to the coordinates for
White Balance adjustment in the table below.
(2) Computer for adjusting (necessary for the automatic
adjustment, possible to communicate with the RS-232C,
Baud Rate : 115200)
(3) Video Signal Generator MSPG-925F 720p, 216Gray
(Model :217, Pattern 78)
7-2. Connection Diagram of Equipment
for Measuring
Use the internal pattern to adjust White Balance. The pattern
is automatically given when the automatic adjustment device
is connected or when a user presses ADJ on the remote
controller to start Ez Adjust and then selects 6.White-Balance.
(internal pattern)
Connection Diagram for Internal Pattern
Connection Diagram for HDMI Input
ADJUSTMENT INSTRUCTIONS
6 7 8 9 A B C D E
(Automatic Adjustment)
F 7-3. White Balance Adjustment Method
Basically it uses the internal pattern but when internal pattern
is not possible, you can select HDMI input for adjustment.
Through the option at the most bottom part of the Ez Adjust
Menu 7.White Balance menu, you can select NONE, INNER
and HDMI, and the default is set to INNER. When the
adjustment cannot be done with the internal pattern, you can
select HDMI input for adjustment.
For manual adjustment, press the ADJ KEY of the adjustment
R/C to enter Ez Adjust 7.White-Balance, and the pattern is
automatically displayed. (When you set the Option to INNER,
the default is always set to INNER)
(1) Connect the set according to the internal pattern or HDMI
input in accordance with measuring device connection
diagram.
(2) Set the Baud Rate of RS-232C to 115200. It is set to
115200 as default.
(3) Connect the RS-232C Cable to the set.
(4) Connect the HDMI Cable to the set. (Limited to the set with
HDMI option)
(5) Select and adjust the model applicable to PA73A chassis
from the adjuster.
7-4. Automatic Adjustment
(1) Execute POWER ON(
automatic adjustment or set the Baud Rate to 115200.
(2) Always start adjustment with "wb 00 00" and end
adjustment with "wb 00 ff" (Adjust the offset if necessary)
(3) RS-232C command used for the automatic adjustment
RS-232C COMMAND
[CMD ID
wb 00
wb 00
wb 00
wb 00
wb 00
wb 00
Ex) Wb 00 00-----white balance Automatic Adjustment Start
Wb 00 10-----Gain Adjustment start (Internal pattern)
Ja 00 ff------Adjustment Data
Jb 00 c0
...
...
Wb 00 1f-----Gain Adjustment End
*(wb 00 20(Start), wb 00 2f(End))----- When adjust Off-set
Wb 00 ff------White Balance Automatic Adjustment End
(Disappear Inside pattern)
- 9 -
Â
) of the adjustment R/C to execute
Meaning
DATA]
White Balance Adjustment Start
00
Gain Adjustment Start(Internal white pattern)
10
Gain Adjustment End
1f
Offset Adjustment Start(Internal white pattern)
20
Offset Adjustment End
2f
White Balance Adjustment End
ff
(Disappear Internal pattern)