Read LG 42PC5D-UL (CHASSIS:PA75C) Service Manual online
6. Adjustment of White Balance
6-1. Required Test Equipment
(1) Color Analyzer : CA-210 (CH 9)
=> To adjust color temperature of PDP, 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.
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)
Baud Rate : 115200)
(3) Video Signal Generator MSPG-925F 720p, 216Gray
(Model :217, Pattern 78)
6-2. Connection Diagram of Equipment
for Measuring
(Automatic Adjustment)
6-3. 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.
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)
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.
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
(4) Connect the HDMI Cable to the set. (Limited to the set with
HDMI option)
(5) Select and adjust the model applicable to PA75C chassis
from the adjuster.
[RS-232C command used for the automatic adjustment]
Ô
Wb 00 00-----white balance Automatic Adjustment Start
Ô
Ô
Ja 00 ff------Adjustment Data
Ô
Jb 00 c0
Ô
...
Ô
Wb 00 1f-----Gain Adjustment End
Ô
*(wb 00 20(Start), wb 00 2f(End))----- When adjust Off-set
Ô
Wb 00 ff------White Balance Automatic Adjustment End
(Disappear Inside pattern)
(Disappear Inside pattern)
[Adjustment Map]
ADJUSTMENT INSTRUCTIONS
(internal pattern)
Connection Diagram for HDMI Input
wb
wb
wb
wb
wb
wb
00
00
00
00
00
00
00
10
1f
20
2f
ff
White Balance Adjustment Start
Gain Adjustment End
Offset Adjustment End
White Balance Adjustment End
RS-232C COMMAND
[CMD ID DATA]
Meaning
R Gain
G Gain
B Gain
R Cut
G Cut
B Cut
Jg
Jh
Ji
Cool
Ja
Jb
Jc
Mid
RS-232C COMMAND
[CMD ID DATA]
CENTER
(DEFAULT)
Jd
Je
Jf
00
00
00
192
192
192
127
127
127
Warm
Min
Max
184
187
192
64
64
64
Cool
192
183
161
64
64
64
Mid
192
159
95
64
64
64
Warm
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