Samsung SP403JHPX/UMG Service Manual page 24

5-5-2 LCD Interface IC (CXA1853_A) Adjustment
No. Item
00 Gamma gain 1
01 R gamma gain 1
02 B gamma gain 1
03 Gamma gain 2
04 SID ctrl
05 B gamma gain 2
06 Gamma ctrl 2
07 Main bright
08 R main bright
09 B main bright
10 White limit
Samsung Electronics
Range Initial value
63 41 Adjusts the gain of black side on the gamma curve (R,G.B)
63 23 Adjusts the gain of black side on the gamma curve for R
63 48 Adjusts the gain of black side on the gamma curve for B
63 16 Adjusts the gain of white side on the gamma curve (R,G.B)
63 36 Adjusts the gain of SID control
63 36 Adjusts the gain of white side on the gamma curve for R
63 34 Adjusts the change point of the white side on the gamma curve (R,G,B).
The smaller the value, the more it moves towards white.
Adjust the DC level of R,G,B signal before doing the gamma adjustment.
63 61 It determines the change point of the gamma curve. The greater the
value, the darker it gets.
Adjusts the DC level of R before doing the gamma adjustment. It deter-
63 37 mines the change point of the gamma curve. The greater the value, the
darker it gets.
Adjusts the DC level of B before doing the gamma adjustment. It deter-
63 36 mines the change point of the gamma curve. The greater the value, the
darker it gets.
Adjusts the limiter voltage of white peak of R,G,B video signal (applied
63 41 to LCD). The greater the value, the lower the limiter
voltage becomes.
Alignment and Adjustments
Description
5-5