Skyworth 6M61S, Service Manual

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VGA source ADC:
Switch to PC source, input tessellated white and black signal,
enter factory, select “ AUTO ADC ” item in the “ ADC CALIBRATION ”
menu, press → button to begin auto adjust. When it is finish, it will
show “OK” or “FAILE”. If “FAILE” is showed, you need to try again.
White balance:
Enter factory mode, enter “ W/B ADJUST ” item, you can adjust white
balance in this menu.