PG-1210 Service Manual
6.5.2 Power Supply Check Point
Step
Test point
Typical Value
Condition
Checking Point
2-1
U504
Pin#1
3.8V
2,3,4,5,6,7
Check route connection : VBAT
2-2
U504
Pin#5
2.8V
2,3,4,5,6,7
Check route connection : VCC_RFCHIP
2-3
U505
Pin#3,8,20
3.8V
2,3,4,5,6,7
Check route connection : VBAT
Step 2-1
Step 2-2
Fig.6-1
U504 Regulator
Power Supply Schematic
Step 2-2
Step 2-1
Fig.6-2 U504 Regulator Power Supply PCB Layout
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PANTECH