White Balance Adjustment - Sharp LC-26GA4D Service Manual

(7) DVI-I (digital) signal adjustment
Adjustment item
1 Adjustment
2 Auto adjustment Page 9/15
performance

8. White balance adjustment

Start the set and perform a white balance adjustment on the display.
» Procedure
» Bring up the adjustment screen (High side: 200 gradations, Low side: 48 gradations).
» Adjust [R GAMMAL], [G GAMMAL] and [B GAMMAL] so that 48-gradation pattern becomes normal.
* Adjust the chromaticity of the Low pattern (on the right of the display) so that it is set to x=0.284 and
y=0.292.
»
Adjust [R GAMMAH], [G GAMMAH] and [B GAMMAH] so that 200-gradation pattern becomes normal.
* Adjust the chromaticity of the High pattern (on the left of the display) so that it is set to x=0.284 and
y=0.292.
9. Initialization to factory settings
Caution: When initialization is performed, all user setting data including the channel settings are
initialized. Be cautious when making this adjustment.
(The adjustments done in the adjustment process mode are not initialized.)
Adjustment item
1 Initialization
After the adjustment, cancel the adjustment process mode.
To exit the adjustment process mode, unplug the AC cord from the outlet to make a forced
shutdown. (When the power was turned off with the remote controller, once unplug the AC cord
and plug it again. In this case, wait 10 seconds or so before plugging.)
Adjustment conditions
Feed the 100% white 1/2 window pattern signal to DVI-I (digital) input.
DVI-I (digital)
Bring the cursor on [ËDVI DIGITAL ADJ] and press [ENTER].
[ËDVI DIGITAL ADJ FINISH] appears when finished.
Adjustment conditions
Enter the adjustment process mode.
Bring the cursor on to [INDUSTRY INIT] in page 2/15.
Set to [ON] using [VOL] key, and press [ENTER] to execute the
initialization.
When the initialization is complete, the adjustment process mode screen is
automatically replaced by the TV's 1ch screen.
* Never shut off the power during the initialization process.
The following settings are initialized in this adjustment.
1. User setting
2. Channel data (e.g. broadcast frequencies)
3. Password data
4. Operation time
5. Maker's optional setting
6. Auto installation flag
7. V-CHIP block setting
Adjustment procedure
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Adjustment procedure
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LC-26GA4D
LC-26GA4U
100% White
0% Black