LG 32LB4DS (CHASSIS:LA73A) Service Manual ▷ View online
- 13 -
- EDID for RGB-PC
5-3. Adjustment of White Balance
(1) Required Equipment
1) Color Analyzer : CA-210(CH 9)
2) Automatic adjustor (with automatic adjustment necessity
2) Automatic adjustor (with automatic adjustment necessity
and the RS-232C communication being possible, Baud
Rate : 115200)
Rate : 115200)
3) Video signal generator MSPG-925F 720P, 216Gray
(Model : 217, Pattern 78)
(2) Measuring device connection diagram
(for automatic adjustment)
(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.
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)
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 4.3.2 measuring device
connection diagram.
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
4) Connect the HDMI Cable to the set. (Limited to the set
with HDMI option)
5) Select and adjust the model applicable to LA73A
chassis from the adjuster.
Caution) For automatic adjustment, RS-232C Command and
Chassis are commonly applied
Caution) Adjustment map
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00 FF FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
00
11
01
03
18
73
41
96
0A
CF
74
A3
57
4C
B0
23
20
09
48 4C
AF CF
00
31
40
45
40
61
40
81
80
A9
40
30
01
01
01
01
01
01
66
21
50
B0
51
00
1B
30
40
70
40
36
00 C4
8E
21
00
00
1A
02
3A
80
18
71
38
2D
40
50
58 2C 45
00
C4
8E
21
00
00
1E
00
00
00
FD
00
30
60
58
1F
64
11
00
0A
20
20
20
20
20
20
00
00
00
FC
70
00 4C 47
20
54
56
0A
20
20
20
20
20
20
20
01
F6
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
02
03
04
00
0E
1F
00
80
51
00
1E
30
40
80
37
00
10
C4 8E
21
00
00
1C
F1
27
00
A0
51
00
25
30
50
80
20
37
00 C4
8E
21
00
00
1C
00
00
00
00
00
00
00
00
30
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
40
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
50
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
60
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
70
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
31
Color Analyzer
F u l l W h i t e P at t er n
R S-232C
(Inner Pattern)
<Fig. 8> Connection diagram for internal pattern
<Fig. 9> Connection diagram for HDMI input
Remark
RS-232C Command
[CMD ID DATA]
wb
wb
wb
wb
wb
wb
00
00
00
00
00
00
00
10
1f
20
2f
ff
Start white balance adjustment
End Gain adjustment
End Offset adjustment
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
152
95
64
64
64
Warm
* White Balance adjustment (For automatic adjustment)
- Execute Power Only Key of the adjustment R/C to execute
automatic adjustment. Set the Baud Rate to 115200.
- Always start adjustment with “wb 00 00” and end
adjustment with “wb 00 ff”
- Adjust the offset if necessary.
adjustment with “wb 00 ff”
- Adjust the offset if necessary.
(4) Adjustment of White Balance
(For manual adjustment)
- Required Equipment : When adjusting the plasma white
balance, use CS-1000 as the color analyzer (CA-210)
and channel 9 corrected of Matrix (corrected for White,
Red, Green, Blue) and the adjustment must be done in
accordance with the below White balance adjustment
coordinate.
and channel 9 corrected of Matrix (corrected for White,
Red, Green, Blue) and the adjustment must be done in
accordance with the below White balance adjustment
coordinate.
1) Press the ADJ of adjustment adjustment remote control
to enter ‘EZ-ADJUST’.
2) Select 10.TEST PATTERN using the CH + / - KEY and
press the Enter KEY to execute a heat run for more
than 30 minutes.
than 30 minutes.
3) Execute a Zero Calibration for CA-210 and put it at
distance of less than 10Cm from the LCD module
surface center during the adjustment.
surface center during the adjustment.
4) Press the ADJ of adjustment R/C, select ‘7.White-
Balance’ of ‘Ez – Adjust’ and enter the adjustment mode
using the right key (
using the right key (
G
).
(When you press the
G
button, the screen enters the full
white internal pattern..)
5) The adjustment is executed in 3 different white balance
of COOL, MEDIUM and WARM.
6) When the white balance is Cool,
Fix B Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use R
Gain / G Gain to adjust the High Light.
When the white balance is Medium,
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G
Gain / B Gain to adjust the High Light.
When the white balance is Warm
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G
Gain / B Gain to adjust High Light.
Gain / G Gain to adjust the High Light.
When the white balance is Medium,
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G
Gain / B Gain to adjust the High Light.
When the white balance is Warm
Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64, and use G
Gain / B Gain to adjust High Light.
7) Use the +, - key for adjustment.
8) When the adjustment is completed, press the OK (
8) When the adjustment is completed, press the OK (
A
KEY) button to move to the Ez –Adjust screen. Press
the ADJ KEY to exit the adjustment mode.
the ADJ KEY to exit the adjustment mode.
* Note : White Balance adjustment coordinate and white balance
- Standard white balance standard white balance
coordinate when using CS-1000 device
COOL : T=11000K, ∆uv=0.000, x=0.276, y=0.283
MEDIUM : T=9300K, ∆uv=0.000, x=0.285, y=0.293
WARM : T=6500K, ∆uv=0.000, x=0.313, y=0.329
COOL : T=11000K, ∆uv=0.000, x=0.276, y=0.283
MEDIUM : T=9300K, ∆uv=0.000, x=0.285, y=0.293
WARM : T=6500K, ∆uv=0.000, x=0.313, y=0.329
- Directed color coordinate when using CA-210 CH 9
Brightness: Full white 216gray
5-4. Check RS-232C operation
Press the Instart of adjustment R/C to enter the 4.Baud Rate
menu and set the Baud Rate to 115200 to check the 232-C
operation.
menu and set the Baud Rate to 115200 to check the 232-C
operation.
- 14 -
Color temperature
Color analyzer
Color coordinate
X
Y
COOL
CA-210
0.276±0.002
0.283±0.002
MEDIUM
CA-210
0.285±0.002
0.293±0.002
WARM
CA-210
0.313±0.002
0.329±0.002
- 15 -
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TROUBLESHOOTING
1. VIDEO
(1) NO OSD(FHD)
- 16 -
C
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