LG KG290 - RTC Trouble

LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 90 -
4.14 RTC Trouble
TEST POINT
CIRCUIT
R104
X100
_LBS
C121
NA
0R103
MC-146_12_5PFX100
32.768KHz
12
3
4
R104
10M
_WR
C123 1000p
WAIT
A12
B12
WE
RD
W4
OSCIN
OSCOUT
W3
A17
LWR_LB
A18
HWR_UB
GPIO_4
G2
G4
GPIO_2
GPIO_3
G3
F2
GPIO_0
GPIO_1
F1
BURSTCLK
A11
CLKIN
B9
B11
ADV
NA
C124
_UBS
_CHG_STAT
_CHG_EN
BT_LDO_EN
BURSTCLK
ADV
_LBS
_RD
26M_DBB
VIBRATOR
_WAIT
_WR
_UBS
Figure 24