LG KM710 Service Manual page 46

4.2.1.1 Regulator Circuit
C440
C441
VBAT
C439
1u
RT9011-MMPQW
1
VIN
2
REGEN
EN1
3
EN2
4
NC1
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Only for training and service purposes
VCC_SYN
C440
4.7u
C_VCCRF
U403
8
VOUT1
7
VOUT2
6
NC2
C441
GND
5
4.7u
9
PGND
Regulator
C440(C441) 2.8V?
NO
Check U403
- 47 -
4. Trouble Shooting
YES
Regulator is OK.
LGE Internal Use Only