Power Supply Check Point - Pantech GB210 Service Manual

GB210 Service Manual
6.6.2 Power Supply Check Point _ TEST CONDITION 1
Test
Step
point
U907
2-1 3.8V
Pin#1
U907
2-2 2.8V
Pin#5
Typical Value
2, 3, 4, 5,6
2, 3, 4, 5,6
Fig.6-1 U907 Regulator Power Supply PCB Layout
PANTECH
Condition
Check route connection : VBAT
YES : Pass
NO : Power Supply Check
Check route connection : VCC_2.8V
YES : Pass
NO 1: Step2-1 Check
NO 2: U907 Pin3 Check
4 3
2
5 1
44
Checking Point
Logic High : LDO Repair
Logic Low : Clock Check
(Test Condition 6)
R&D CONFIDENTIAL