ZOLL X Series Monitor Defibrillator Rev D - Manual (Page 17)

Maintenance Tests
9650-001356-01 Rev. D ZOLL X Series Service Manual 11
2.3 LCD Test
This test checks the colors of the Liquid Crystal Display on the unit.
Follow the instructions and use the navigation keys to move around the display and make
selections.
2.4 RFU Indicator Test
This test checks the Ready For Use Indicator on the unit to make sure it is working correctly.
Follow the instructions shown on the display.