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9. Adjustment method
9.1. Sub-Contrast/White Balance Adjustment
Instrument Name
1. Remote controller
2. LCD WB meter (Minolta CS-1000A equivalent)
3. Communication jig
4. Computer for external control
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Sub-Contrast adjustment
1. Receive PAL colour bar (100% white) RF signal.
2. Enter "Sub-Contrast" adj. in SERVICE 1 mode.
3. Start adjusting by using Blue key.
4. If the adjustment finished normally, the letter of "Sub-Contrast" will change from red to
black.
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White Balance adjustment
1. Procedure basically perform checking using the production software and make automatic
adjustment using external computer.
2. It adjusts in the mode of Colour balance Normal (standard)/ Warm/ Cool as follows. / (Asia 500
series model)
* The address of EEPROM to write is as follows.
Add. C80-C91
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OSD/TEXT Clamp adjustment
1. Enter "TEXT RGB" adj. mode of SERVICE 1.
2. In condition of default setting, check the noise on the screen of test colour pattern.
3. If there is no noise on the test pattern, the adjustment is completed.
4. If not, change the value by YELLOW (data value -) or BLUE (data value +) key to find the suitable value and store the value by OK button.
10. Block Diagram
10.1. Main Block Diagram
Procedure
28
Connect to
Remarks
Correlation can be also taken
CA-210 or equivalent
Remarks
Let the panel stand for more
3 hours at more than 20 °C.
Basically perform adjustments
the ambient environment of
temperature more than 20
The aging time is more than
min at above room temperature
-
Applied signal
100% full colour bar
0.7Vp-p white peak
87.5% modulation
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