Sharp LC-32WD1RU Service Manual page 19

LC-32WD1E/S/RU and LC-32WT1E
Item # Item
[7.1.1] Using White Point Calibration Items
Item # Item
276 Gam-20IRE-R
277 Gam-80IRE-R
278 Gam-20IRE-G
279 Gam-80IRE-G
280 Gam-20IRE-B
281 Gam-80IRE-B
Adjustment Conditions
Adjustment Conditions
• White point adjustment can only
be done after a preheating
(burn-in) of the TV set or LCD
panel for at least 15 minutes.
• The White point adjustment can
only be done with an I2c tool
and the SW to control the W/B
settings.
Adjustment Reference Device:
• Minolta CA-210
Adjustment Procedure
The following settings have been reset to the factory settings:
• User settings.
• Channel data (e.g., broadcast frequencies)
• Password data
Adjustment Procedure
Target Values:
80% WHITE WINDOW
x: 0.2764 ± 0.0050
y: 0.2814 ± 0.0050
Lv: 243.1 ± 50.0
20% WHITE WINDOW
x: 0.2764 ±0.0075
y: 0.2814 ±0.0075
Lv: 11.5 ±10.0
1. Position the colorimeter Minolta CA-210 against the panel
exactly in front-mid of the panel (in a dark room)
2. Send the I2c command to generate the internal 80%
white test-picture from PNX.
3. Measure the Lv with the CA-210 and adjust the 80%
green value via I2c commands.
* Lv = G
4. Measure the y parameter with the CA-210 and adjust the
80% Blue value via I2c commands.
* y = -B
5. Measure the x parameter with the CA-210 and adjust the
80% Red value via I2c commands.
* x = R
Repeat the Blue and Red adjustment twice to get a better
end result.
6. Send the I2c command to generate the internal 20%
white test-picture from PNX.
7. Measure the Lv with the CA-210 and adjust the 20%
Green value via I2c commands.
* Lv = G
8. Measure the y parameter with the CA-210 and adjust the
20% Blue value via I2c commands.
* y = -B
9. Measure the x parameter with the CA-210 and adjust the
20% Red value via I2c commands.
* x = R
10. Repeat the Blue and Red adjustment twice to get a better
end result.
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