Panasonic TX-26LX500F, Руководство по обслуживанию, Страница: 28 / 225

9. Adjustment method
9.1. Sub-Contrast/White Balance Adjustment
Instrument Name Connect to Remarks
1. Remote controller
2. LCD WB meter (Minolta CS-1000A equivalent)
3. Communication jig
4. Computer for external control
Correlation can be also taken
CA-210 or equivalent
Procedure Remarks
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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/ Warm/ Cool as follows. / (UK/Euro 500 series
model)
* The address of EEPROM to write is as follows.
Add. C80-C91
Let the panel stand for more
hours at more than 20 °C.
Basically perform adjustments
the ambient environment of
temperature more than 20
The aging time is more than
at above room temperature
-
Applied signal
100% full colour bar
0.7Vp-p white peak
87.5% modulation
-
OSD/TEXT Clamp adjustment
1. Press F button and YELLOW button, and enter “TEXT RGB” adj. mode.
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 or CYAN key to find the suitable value and store the value by OK button.
10. Block Diagram
10.1. Block Diagram (1 of 7)
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