Samsung SGH-D600 Service Manual page 27

Charging
5.0V
V_EXT_CHARGE
C505 C506
+VDD_IO_HIGH
R513
+VBUS
ZD501
AUX_ON
END_OF_CHG
CHG_ON
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Typical 3.7V
VBAT
R512
U501
1 BAT 10
CRDL
2 9
USB ICDL
3 _PPR GND 8
4 USBON 7
_CHG
5 6
_EN IMIN
GND
11
R517
C507
7- 7
Flow Chart of Troubleshooting
Typical 1.4V
MES_BATT
R514 C504
USB_CHG_ON
R518
BATTERY CHARGING