Adjustment - ViewSonic N2750w-1 Service Manual

11. Adjustment

11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS
1. Approximately 30 minutes should be allowed for warm up before proceeding.
2. Adjustments should be undertaken only on those necessary elements since most of them
have been carefully preset at the factory.
3. ESD protection is needed before adjustment.
11.2. MAIN ADJUSTMENTS
NO. FUNCTION
1. Eeprom Initial
2. White Balance
11.3. ALIGNMENT PROCEDURES
Adjustment Conditions and Precautions:
(A). Power supply voltage:
(B). Warm up time:
(C). Signals: reference the front detail specifications and timing table.
1. Eeprom Initial:
A. Timing : 1024x768@60Hz.
B. Pattern : Cross hatch.
C. Switch off the power and press the " ▲ " and " ▼ " key simultaneously, and switch on
D. Select the "INITIAL" item and press "enter"key to reset the Eeprom.
2. White Balance Adjustment :
A. Timing : 1024x768@60Hz.
B. Pattern : 16 gray.
C. Set CA110 color analizer at the center of screen and along a perpendicular to the
D. Press menu key select the OSD page on INPUT SELECT and select MAIN:VGA.
E.
F.
G. Color temperature verification :
(1) Color temperature medium verify : press " ▼ " ," ▲ " key to move cursor to COLOR
TEMPERATURE at factory mode and press " left " ," right " key set in mediun, and
then check the color temperature is
WARM
ViewSonic Corporation
AC 110/120V ± 10% 60 Hz ± 5%, AC 220/240V ± 10% 50 Hz ± 5%.
The display must be power ON for at least 30 minutes at full white pattern before
starting alignments.
This is especially critical in color temperature and white balance adjustments.
Video : reference the front detail specifications.
the power. At this time we can enter into the factory mode.
screen at 20cm from the display.
Press menu key change the OSD page to adjust page.
Press " ▼ " key to select the " AD BALANCE" item in the factory mode and press
"enter "key, then the white balance will be auto dadjusted .
x=0.313 ± 0.03
DESIGNATION
Function Key
Function Key
y=0.329 ± 0.03
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