7
4. ADJUSTMENT
4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS
Adjustments should be undertaken only on following function :
Contras , Brightness, Black level,
Phase, Clock , H/V-position , Languages, Color-(C2,C1,User), Auto level, OSD-position, Languages, Reset
4-2 ADJUSTMENT
METHOD
Press MENU button to activate OSD Menu or make a confirmation on desired function, Press Left/Right button to
select the function or done the adjustment.
1.
White-Balance, Luminance Adjustment
Approximately 30 minutes should be allowed for warm up before proceeding white balance
adjustment
.
Before started adjust white balance ,please setting the Chroma-7120
MEM. Channel 1 to C2
color and
MEM. channel 2 to C1
color, ( our C2 parameter is x = 302
±
20, y = 319
±
20, Y = 200
±
20cd/m2 and C1
parameter is x = 313
±
20, y = 329
±
20, Y = 200
±
20 cd/m
2
)
How to setting MEM.channel you can reference to chroma 7120 user guide or simple use “
SC
” key and
“
NEXT
” key to modify x,yY value and use “
ID
” key to modify the TEXT description
Following is the procedure to do white-balance adjust
Press MENU button during 1 seconds along with plug in the DC-power cord will activate the factory mode,
and the OSD screen will located at
left top of panel
.
I.
Bias (Low luminance) adjustment :
1.
Press “ AUTO” button , and wait for message “ Pass”
2.
Set the contrast on OSD window to the value=45 , color (user )R,G,B set to “
50
”
3.
adjust the
brightness
on
OSD until chroma 7120 measurement reach the value Y=240 cd/m
2
±10
cd/m
2
