LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 61 -
4.7 RTC Trouble
X102
C131
C132
TP1
C116
C117
TEST POINT
CIRCUIT DIAGRAM
(FOR FM RADIO)
(FOR FM RADIO)
(0603)
C131
18p
B6
T_OUT2
A6
T_OUT3
T_OUT4
A5
B7
T_OUT8
SWITCH_ON
N7
T_OUT0
A7
OSC32K
P6
P5
RESET_N
A3
RSTOUT_N
SAFE_RES
M7
F32K
R5
CC00IO
A4
B4
CLKOUT
X102
MC-146_12_5PF
1
2
3
4
32.768KHz
TP102
R124
0
C132
18p
_RESET
TP101
PWRON
TXON_PA
VLOGIC
FM_32K
BS
FM_RST
(1%)
W_LED_FBP
J14
W_LED_FBN
J12
G15
VREFP
VDD_LRTC
K12
H13
VBAT_1
VBAT_2
F12
H15
VBAT_3
VBAT_4
H14
IREF
G13
AGND
G14
R106
22K
220n
C119
2V0_VRTC
C117
1u
0
R105
22u
C116
TP1