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Alignment and Adjustments
5-5 Service Mode Adjustments
5-5-1 LCD Interface IC (CXA1853) Adjustment
Values to be adjusted for each set
No.
Item
0
main bright
1
R main bright
2
B main bright
3
gamma gain1
4
R gamma gain1
5
B gamma gain1
6
gamma ctrl1
7
R gamma ctrl1
8
B gamma ctrl1
9
gamma gain2
10
reserved
11
B gamma gain2
12
gamma ctrl2
13
reserved
14
reserved
15
sub contrast
16
R sub contrast
17
B sub contrast
18
sub bright
19
R sub bright
20
B sub bright
5-4
Range
Initial value
63
34
Adjusts for DC level of R,G,B signal before doing the gamma
adjustment. The greater the value, the darker it gets
63
36
Adjusts for DC level of R signal before doing the gamma adjustment.
The greater the value, the darker it gets
63
36
Adjusts for DC level of B signal before doing the gamma adjustment.
The greater the value, the darker it gets
63
42
Adjusts the gain of black side on the gamma curve (R,G,B)
63
36
Adjusts the gain of black side on the gamma curve for R
63
36
Adjusts the gain of black side on the gamma curve for B
63
40
Adjusts the change point of the black side on the gamma curved line
of R,G,B signal. The greater the value, the more the point moves
towards black
63
36
Adjusts the change point of the black side on the gamma curve for R.
The greater the value, the more the point moves towards black
63
36
Adjusts the change point of the black side on the gamma curve for B.
The greater the value, the more the point moves towards black
63
16
Adjusts the gain of white side on the gamma curve (R,G,B)
63
36
reserved for R gamma gain2 (not used)
63
36
Adjusts the gain of white side on the gamma curve B
63
34
Adjusts the change point of the white side on the gamma curved line
of R,G,B signal. The smaller the value, the more the point moves
towards white
63
36
reserved for R gamma ctrl2 (not used)
63
36
reserver for B gamma ctrl2 (not used)
63
40
Adjusts the gain of R,G,B voltage (applied to LCD)
63
37
Adjusts the gain of R voltage (applied to LCD)
63
42
Adjusts the gain of B voltage (applied to LCD)
63
30
Adjustment for the brightness of R,G,B after doing the gamma
adjustment. No change on the gamma curve. The greater the value,
the darker it gets
63
34
Adjustment for the brightness of R after doing the gamma
adjustment. The greater the value, the darker it gets
63
37
Adjustment for the brightness of B after doing the gamma
adjustment. The greater the value, the darker it gets
Description
Samsung Electronics
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