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Flow Chart of Troubleshooting
9-2
R335
50
01
OSC300
C353
C338
M10
IN9
M2
IN1
M4
HPL
6
M
D
N
G
A
8
M
2
D
N
G
P
C328
K6
IN6
K8
C1N
L1
LX
L11
OUTP
L3
HPR
L5
IN8
7
L
S
S
V
L9
C1P
J3
FB
J5
INA1
J7
INB1
J9
TEST2
K10
RXINP
K12
IN7
2
K
1
D
N
G
P
K4
VBIAS
H10
RXINN
H12
OUTN
H2
XIN
H4
CLK32K
H6
INA2
H8
INB2
J1
XOUT
11
J
3
D
N
G
P
F6
ONKEYB
F8
REFBP
G1
VISA
1
1
G
D
N
G
G3
REC1B
G5
RESETB
G7
REC2B
TEST1
G9
E3
VSAVE
E5
PWREN2
E7
SCL
9
E
B
T
T
A
B
F10
CHGINB
F12
CHGIN
F2
MICBIAS
SIMOFFB
F4
D10
VL
2
1
D
S
U
B
V
2
D
D
D
V
3
D
D4
IRQB
D6
SDA
8
D
S
T
T
A
B
1
E
D
D
V
OI
T
T
A
B
11
E
6
B
2
D
D
V
F
R
B8
IN5
1
C
D
D
V
1
D
1
1
C
D
D
V
4
D
C3
IN2
5
C
D
D
V
C
L
C7
SIMVCC
PWREN1
C9
3
A
D
D
V
C
H
5
A
D
D
V
P
L
7
A
D
D
V
1
F
R
9
A
D
D
V
6
D
B10
IN4
B12
USBLDO
2
B
D
D
V
2
D
IN3
B4
U313
1
C
N
2
C
N
D
D
V
5
D
1
1
A
R339
C308
C334
C304
C335
C324
C303
3
06
0
C300
R301
C307
R319
L300
C301
C309
C354
30
60
C343
C310
C364
1005
C332
5
00
1
C325
C326
R305
6.3V
C330
50
0
1
V_EXT_CHARGE
BAT300
2
1
C329
3
06
0
C321
50
01
R315
C313
C331
C333
C351
C337
C311
C322
5
00
1
R306
C352
VBAT
C336
C323
C312
R304
C372
C371
MES_BATT
VDD_GSM_CORE_1.2V
+VBUS
JACK_IN
AUX_ON
EARSPK_L
EARSPK_R
3PI_L
3PI_R
VDD_IO_HIGH_2.9V
VDD_SD_3.3V
VDD_CAM_IO_2.8V
SPK_N
SPK_P
VDD_USB_3.3V
ONKEY_N
REF_ON_TR
VCORE_CTRL
INT_PMU
SIMOFFn
CLK32K
RSTON
EAR_N
EAR_P
AVDD_HFA_2.6V
AVDD_2.6V
VCC_SYN_2.8V
TSP_3.0V
+VBUS_DETECT
VDD_RX_TX_2.8V
VDD_KEY_3.3V
VDD_PLL_1.2V
VDD_SIM_3.0V
SDA
VDD_IO_LOW_1.8V
SCL