G310 Service ManualPANTECH R&D CONFIDENTIAL466.5.2 Power Supply Check PointStep Testpoint Typical Value Condition Checking Point2-1 U907Pin#1 3.8V 2, 3, 4, 5 Check route connection : VBAT2-2 U907Pin#5 2.8V 2, 3, 4, 5 Check route connection : VBAT2-3 Z710Pin#4 3.8V 2, 3, 4, 5 Check route connection : VBAT2-4 Z710Pin#5 2.8V 2, 3, 4, 5 Check route connection : VCC_RFCHIPTyp 3.8V Typ 2.8VFig.6-1 U907 Regulator Power Supply PCB LayoutTyp 3.8V Typ 2.8VFig.6-2 U907 Regulator Power Supply Schematic