LG F3000 - RTC Trouble

4. TROUBLESHOOTING
- 89 -
4.14 RTC Trouble
TEST POINT
CIRCUIT DIAGRAM
R108
R100
C130 27p
10M
R108
C129
NA
V6
V3
E9
C9
F9
K16
N9
V7
L18
L14
N10
P13
C131
NA
3
4
X101
32.768KHz
MC-146_7pF
12
CHG_EN
CHG_STAT
_MIDI_CS
26M_DBB
BT_EN
_SUB_CS
CLKON
_LCD_CS
D16
2V8_VMEM
BACK_BATT
(1608)
2V5_VMIC
VCORE2
VEXT1
A4
B4
VEXT2
T3
VMEM1
VMEM2
T2
VMIC
N16
T7
VRTC
VSIM
T6
E15
VUSB
VVCXO
H16
VABB
VAPP
F16
E16
VAPPGATE
T4
VBACK
VCORE1
P1
N1
VUSB
1uC121
2V8_VEXT
2V75_VABB
VBAT
2.2uC117
2V85_VSIM
1u
1V8_VRTC
C114
1V8_VCORE
1uC122
C116 1u
10KR100
1uC113
1uC123
1uC118
C115
2V75_VVCXO
0.1u
Figure 4-14
BAT01
BACK_BATT