Samsung SP403JHPX, Руководство по обслуживанию

Страница: 25 / 74

Alignment and Adjustments
5-6 Samsung Electronics
5-5-3 LCD Interface IC (CXA1853_B) Adjustment
No. Item Range Initial value Description
00
01
02
03
04
05
06
07
08
09
10
11
Gamma ctrl 1 off
Black Stretch On
R gamma ctrl 1
B gamma ctrl 1
Sub bright
R sub bright
B sub bright
Common ctrl
Signal center
Sub contrast
R sub contrast
B sub contrast
63
36
63
63
20
63
63
63
63
63
63
63
41
36
33
33
00
36
41
30
15
41
40
37
Adjusts the change point of the black side on the gamma curve
(R,G,B). The greater the value, the more it moves towards black
Adjusts the change point of the back side on the (R,G,B) gamma
curve. Moves the change point to the white side. The value is always
less than the one of the gamma ctrl 1 off.
Adjusts the change point of the back side on the gamma curve for R.
The greater the value, the more it moves towards black.
Adjusts the change point of the black side on the gamma curve for B.
The greater the value, the more it moves towards black.
Adjusts the brightness of R, G, B after doing the gamma adjustment.
No change of the gamma curve. The greater the value, the darker it
gets.
Adjusts the brightness of R after doing the gamma adjustment. No
change on the gamma curve. The greater the value, the darker it
gets.
Adjusts the brightness of B after doing the gamma adjustment. No
change on the gamma curve. The greater the value, the darker it
gets.
Adjusts the common voltage (applied to LCD)
Adjusts the DC level of composite video signals (applied to LCD). Set
the signal center to 7V.
Adjusts the gain of R, G, B (applied to LCD).
Adjusts the gain of R (applied to LCD).
Adjusts the gain of B (applied to LCD).
No. Item Range Initial value Description
00
01
02
LCD h pos
LCD v pos
SH position
255
15
15
120
4
6
Determines the start location of horizontal indication by picture
element.
Determines the start location of vertical indication (within 1H)
Determines the phase of the sample/hold pulse.
5-5-4 LCD CONTROLLER (CXD2443Q) Adjustment