Read Sharp XG-C465X (serv.man4) Service Manual online
XG-C435X/C465X
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[2] ELECTRICAL ADJUSTMENT
1. ELECTRICAL ADJUSTMENT (1)
No.
Adjustment Item
Adjustment Conditions
Adjustment Procedures
1
EEPROM initialization
1) Turn on the power (the lamp turns on)
and perform aging for 15 minutes.
1) Perform the following setting.
Press S6501 to enter the process mode, and execute SS2 of the
SS menu.
SS menu.
2
R-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item: R-Bright
R-Contrast
Adjustment item: R-Bright
R-Contrast
(Process gamma linkage)
1) Check the fixed value.
R-Bright: 63
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the R-Contrast
value. Adjust to the point where black to bright red bit dropouts
occur and the x value changes by 30/1000 or more.
occur and the x value changes by 30/1000 or more.
3
G-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item: G-Bright
G-Contrast
Adjustment item: G-Bright
G-Contrast
(Process gamma linkage)
1) Check the fixed value.
G-Bright: 63
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the G-Contrast
value. Adjust to the point where black to bright green bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
4
B-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item: B-Bright
B-Contrast
Adjustment item: B-Bright
B-Contrast
(Process gamma linkage)
1) Check the fixed value.
B-Bright: 63
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the B-Contrast
value. Adjust to the point where black to bright blue bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
5
DTV
R-bright check
Contrast adjustment
(manual or automatic)
R-bright check
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 100% (0.7 Vpp)/
0% of 480P to COMPUTER1.
0% of 480P to COMPUTER1.
2) Select the following.
Group: AD2
Adjustment item: R-Bright2
R-Contrast2
Adjustment item: R-Bright2
R-Contrast2
(Process gamma linkage)
1) Check the fixed value.
R-Bright2: 63
2) Observe the chromaticity of 100% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the R-Contrast2
value. Adjust to the point where black to bright red bit dropouts
occur and the x value changes by 30/1000 or more.
occur and the x value changes by 30/1000 or more.
6
DTV
G-bright check
Contrast adjustment
(manual or automatic)
G-bright check
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 100% (0.7 Vpp)/
0% of 480P to COMPUTER1.
0% of 480P to COMPUTER1.
2) Select the following.
Group: AD2
Adjustment item: G-Bright2
G-Contrast2
Adjustment item: G-Bright2
G-Contrast2
(Process gamma linkage)
1) Check the fixed value.
G-Bright2: 63
2) Observe the chromaticity of 100% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the G-Contrast2
value. Adjust to the point where black to bright green bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
7
DTV
B-bright check
Contrast adjustment
(manual or automatic)
B-bright check
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 100% (0.7 Vpp)/
0% of 480P to COMPUTER1.
0% of 480P to COMPUTER1.
2) Select the following.
Group: AD2
Adjustment item: B-Bright2
B-Contrast2
Adjustment item: B-Bright2
B-Contrast2
(Process gamma linkage)
1) Check the fixed value.
B-Bright2: 63
2) Observe the chromaticity of 100% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the B-Contrast2
value. Adjust to the point where black to bright blue bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
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