33TH-50PF30U9 Measurements andAdjustments9.1. Adjustment9.1.1. Vsus selectionCaution:When Plasma panel or A-board is replaced, Vsus should be set to LOW or HIGH.Procedure1. Access the CAT mode.Press and hold the Volume down / - button on the front panel of the unit and press the [RECALL] button on the remote con-trol 3 times quickly within 2 second, this will place the unit into the CAT mode.2. Select the IIC mode.3. Go into item [VSUS] in the IIC mode by Up / Down buttons. LOW or HIGH will be displayed.4. Press [OK] button to go to TEST stage.White pattern without On-Screen Display will be displayed during TEST and CONF stage. Press [RECALL] button to displaythe On-Screen Display.5. Press [VOL (-)] button to set to LOW.6. In LOW settinga. If no several dead pixel is visible remarkably in white pattern, press [RIGHT] button to go to CONF stage.b. If the several dead pixels are visible remarkably in white pattern, Set to HIGH by press [VOL (+)] button. Press [RIGHT]button to go to CONF stage if the symptom is improved.7. Press [OK] button in CONF stage to store LOW or HIGH.8. Exit Service Mode by pressing [Power] button.