Read Sharp LC-37X20E (serv.man4) Service Manual online
LC-32X20E/S/RU, LC-37X20E/S/RU
3 – 15
7. DVI-I adjustment (ANALOG D-sub15PIN)
8. RGB adjustment (SCART)
10. White Balance Adjustment
Adjustment gradation values (IN) appear on page 12/33 of process adjustment, and adjustment initial values (offset value) appear on pages 13/33
and 14/33.
and 14/33.
For white balance adjustment, adjust the offset values on pages 13/33 and 14/33.
[Condition of the unit for inspection]: Modulated light: MAX (+8)
[Adjustment reference device] : Minolta CA-210
[Adjustment]
Check that the values on page 12/33 of process adjustment are set as below. If not, change them accordingly.
1) Display the current adjustment status at point 6. (Page 12/33 of process adjustment)
The display for checking the adjustment status is toggled by pressing the “6” button on the remote control.
(Normal OSD display
→ “6” → display for check (OSD disappears) → “6” → normal OSD display → . . . )
2) Read the value of the luminance meter. x=0.272, y =0.277
3) Change MG6R/MG6B (Adjustment offset value) on page 14/33 of process adjustment so that the values of the luminance meter approach x=0.272
and y =0.277.
(Basically, G is not changed. If adjustment fails with R and B, change G. When G is lowered, the weaker of R and B must be fixed.)
4) Display the adjustment status of the current point 5. (Each time the “5” button on the remote control is pressed, the adjustment status check dis-
play is toggled.)
(Normal OSD display
→ “5” → Check display (OSD disappears) → “5” → Normal OSD display → . . . )
Change MG5R/MG5B (adjustment offset value) on page 14/33 of process adjustment so that the values of the luminance meter approach x =
0.272 and y = 0.277.
0.272 and y = 0.277.
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
XGA 60Hz
100% Full Field Colour Bar sig-
nal
XGA 60Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT7 PC IN
EXT7 PC IN
• Feed the XGA 60Hz 100% full field colour bar signal (100% colour satura-
tion) to EXT7 PC IN.
2
Auto adjustment
performance
performance
Page 8/33
Bring the cursor on [ANALOG PC ADJ] and press [OK] [ANALOG PC ADJ OK]
appears when finished.
appears when finished.
Adjustment point
Adjustment Conditions
Adjustment procedure
1
Setting
[Signal]
RGB15K, 50Hz
100% Full Field Colour Bar sig-
nal
RGB15K, 50Hz
100% Full Field Colour Bar sig-
nal
[Terminal]
EXT1 SCART IN
EXT1 SCART IN
• Feed the RGB15k 50Hz 100% full field colour bar signal (100% colour satu-
ration) to EXT1 SCART IN.
2
Auto adjustment
performance
performance
Page 9/33
Bring the cursor on [SCART RGB ADJ] and press [OK] [SCART RGB ADJ OK]
appears when finished.
appears when finished.
Point 1 (LEV1)
176
Point 2 (LEV2)
352
Point 3 (LEV3)
528
Point 4 (LEV4)
656
Point 5 (LEV5)
800
Point 6 (LEV6)
928
100% white
Black
100% white
Black
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