Power On Trouble - LG GM360i Service Manual

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4.2 Power on Trouble

Check Points
-Battery Voltage( Need to over 3.35V)
-Power-On Key detection (PWRON signal)
-Outputs of LDOs from PMIC
Power On
END_KEY
Close to PAD(Varistor)
TP2
LG Electronics
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3
R219
Q200
2
10Kohms
1
External Reset JIG Connector
VIO_2V62
R218
100Kohms
7
6
SPOWER_INT
5
_RESET
4
TP2
66/147
END_KEY_IN
KP_IN[6]
END_KEY_IN
KP_OUT[2]
RTC_2V11
U200
8
A1
VCC
1
B1
Y1
2
Y2
B2
3
GND
A2
C235
0.1u
R203
DNI
R202
DNI
- 6 -
4. TROUBLE SHOOTING
RTC_2V11
TP1
TP1
PWRON
3
Q201
2
1
PM_INT
PMRSTN
LGE Property
LGE Internal Use Only

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