Sharp LC-20SH4U Service Manual page 23

TEST PATTERN IN THE ADJUSTMENT PROCESS MODE
IC1201 (LCD controller) test pattern
1) Getting the test pattern displayed
Call the adjustment process mode, select "DVP" on page 4, and press the ENTER button. Next select "DVP
TEST PATTERN" in line 2 on page 1. (The "DVP TEST PATTERN" turns yellow.) Now use the cursor RIGHT/
LEFT keys to get the test pattern displayed.
To quit the test pattern, enter "0" in the "DVP TEST PATTERN" setting. The test pattern is kept onscreen even
by pressing the RETURN UP/DOWN buttons. The test pattern display is cancelled when the power is turned
off, and the usual display appears instead when the power is turned on again.
2) Test pattern displayed
The following test pattern appears onscreen.
» The DVP test pattern comes in 22 different types.
1 Black & white (Size:Minimum) 2 Black & white (Size:Small)
6 Crosshatch (Spacing:Small) 7 Crosshatch (Spacing:Medium)
11 Color bar (Spacing:Medium) 12 Color bar (Spacing:Large)
16 Vertical lamp (Spacing:Medium) 17 Black-background pattern
21 Green-background pattern 22 Blue-background pattern
3 Black & white (Size:Medium) 4 Black & white (Size:Large)
8 Crosshatch (Spacing:Large) 9 Color bar (Spacing:Minimum)
13 Lamp (Spacing:Small) 14 Lamp (Spacing:Medium)
18 White 100% 19 White 50%
23
LC-20SH4U
5 Crosshatch (Spacing:Minimum)
10 Color bar (Spacing:Small)
15 Vertical lamp (Spacing:Small)
20 Red-background pattern