Hisense MTK8222, Service Manual

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LCD TV Service Manual
Hisense Confidential
2. Factory/Service OSD Menu and Adjustment
2.1 To enter the Factory OSD Menu
a.
、
With factory RC (remote control)
1. Press “M” button and enter factory mode.
2. Press “Menu” button and enter factory OSD menu.
3. Press “CH+”/“CH-” button select the function menu, press “VOL+”/“VOL-” enter the selected
function menu. Press “VOL+”/“VOL-” button adjust values in the menu.
b.
、
With user’s RC
1. Power TV On
2. Press Menu button and call up User OSD Menu
3. Select Audio-> Balance
4. Enter 0->5->3 ->2 in sequence. If re-do number keys not appear the OSD, then renew enter
1->9->6 ->9 in sequence.
5. Factory OSD appears.
6. Press Menu again and leave factory OSD.
2.2 Factory OSD Menu
2.2.1 White Balance
Note: Different source has different WB values. Before adjusting, please change to desired source.
1. Auto Color
For VGA and Component Video sources, WB values must be adjusted. And at others signal sources, the
“auto colour “does not work.
Before adjusting, prepare the signal instruments such as DVD or K-8256 first, and find the video picture
with gray and color bars. Then please change to desired source.
source Timing Pattern Notes
1 ADC VGA 1024*768 gray-3color For VGA source
2 ADC HDTV 720P gray-3color For Component Video
Notes:
a、Press “M” button and enter factory mode.
b、Press “Menu” button and enter factory OSD menu.
c、Select the item “Auto Color”.
d、Press VOL+ button to auto color.
e、Close the OSD menu after 5 seconds.