-- 6 -
F. White Balance Adjustment (9300°as major temperature) Low light
adjust
9300
°
6500
°
5000
°
x
=
0.283
±
10
x = 0.313
±
15
x = 0.324
±
15
y
=
0.297
±
10
y = 0.329
±
15
y = 0.342
±
15
Y = 0.3 ~ 0.6FL
Y = 0.3 ~ 0.6FL
Y = 0.3 ~ 0.6FL
1. Select Timing 6, adjust BRI. And CONT. to max. disconnect RGB signals, adjust R/B BAIS to 100 scale (OSD
then slowly adjust G BAIS to 100 scale adjust VR803 to get light output = 0.3 ~ 0.6FL for 9300
°
, repeat above
steps for 6500
°
and 5000
°
R/B GAIN setting to get raster color temperature within specified, finally, adjust
BRI to get raster = 0.06FL.
2. High light adjust
9300
°
6500
°
5000
°
x
=
0.283
±
10
x = 0.313
±
10
x = 0.324
±
10
y
=
0.297
±
10
y = 0.329
±
10
y = 0.342
±
10
Y =30 FL
Y = 30 FL
Y =30 FL
Select Timing 4, measure 2 "square, set CONT. to Max, position and SUB-CONT to 127, R/B GAIN to 200, G
GAIN to 200, adjust SUB-CONT to get light output = 35 FL for 9300
°
, repeat above steps for 6500
°
and
5000
°
R/B GAIN setting to get color temperature within specified.
3. Select Timing 3 with full white pattern adjust OSD-ABL (SUB BRIGHTNESS) to get full white light output =
30
±
2 FL.
G. Focus Adjustment
G-1. Adjust brightness, have the brightness of raster be 0.06FL and contraset be 30FL in timming 6.
G-2. Adjust the G4a and G4b of theFBT, have focus be in the best condition on the 1/4 diagonal of
screen in timing 5.
H. Convergence Adjustment
Input R+B and R+G signals, make sure convergence within specified (if not 4 pole and 6 pole). A zone =
0.3MM., B zone 0.4MM. (X) < 0.4MM, (Y) < 0.4MM.
NOTE :
1. A area = 260mm (circle)
2. B area = 350 x 260 mm
I. Presetting Modes Adjustment
There are 12 preset modes, individual adjust is needed.
1. H-SIZE adjust : adjust control key to get H-SIZE = 350
±
4mm.
2. H-CENTRE adjust : adjust control key to get centre within
±
4mm
3. V-SIZE adjust : adjust control key to get V-SIZE = 260
±
3mm
4. V-CENTRE adjust : adjust control key to get centre within
±
2mm
5. Geometric adjust : adjust control key to get minimum distortion.
6. H-linearity check : check and make sure linearity meets spec..
(CROSS HATCH PATTERN 10X8)
2(MAX - MIN)
X100%
MAX + MIN
Any : <10%
Adjacent : <5%
7. V-linearity check : check and make sure linearity meets spec.
-0
+5
-0
+5
-0
+5
-0
+5
Summary of Contents for CM721FET
Page 10: ... 9 ...
Page 11: ... 10 2 CONTROLS AND CONNECTORS LAYOUT A Main PCB ...
Page 20: ... 19 A Monitor Check Flow Chart A 1 No raster ...
Page 21: ... 20 A 2 No Picture ...
Page 22: ... 21 A 3 No vertical deflection raster become a horizontal line ...
Page 23: ... 22 APPENDIX A SCHEMATIC DIAGRAMS PCB ASSEMBLIES ...
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Page 30: ......
Page 31: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...
Page 32: ... 50 APPENDIX C DISPLAY UNIT ASSEMBLY ...
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