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VBAT
V_EXT_CHARGE
IFC500
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15 15
16
16
17 17
18
18
19 19
20
20
NC 21
22
NC
23
NC
NC 24
25
NC
NC 26
NC 27
L301
C343
C322
C323
C333
C326
C335
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+VDD_MAINKEY_3.3V
C300
+AVDD_HFA_2.6V
C353
+VDD_SUBKEY_LED_3.3V
C310
+VDD_SLEEP_2.9V
C312
+VDD_IO_HIGH_2.9V
C314
+VDD_USB_3.3V
C316
VBAT
R303
MES_BATT
R304
C356
C319
V_EXT_CHARGE
C322
HFR_P
C323
HFR_N
C324
EAR1_M
C325
EAR2_M
C326
SPK_N
SPK_P
C331
REF_ON_PMU
PWREN2
OSC300
C340
C341
C342
C334
PMU + DCDC + CHARGER
C334
C331
10-13
Flow Chart of Troubleshooting
C301
C303
C311
C313
C315
C317
M2
G3
IN1
REC1B
C3
G7
IN2
REC2B
B4
IN3
B10
M4
IN4
HPL
B8
L3
IN5
HPR
K6
C321
IN6
K12
F2
IN7
MICBIAS
L5
IN8
M10
H10
IN9
RXINN
HFR_N
K10
RXINP
HFR_P
J5
INA1
H6
F4
INA2
SIMOFFB
C7
SIMVCC
J7
INB1
H8
B12
INB2
USBLDO
+VBUS_DETECT
K8
D10
C327
C1N
U300
VL
L9
K4
C328
C1P
VBIAS
G1
C329
VISA
H12
E3
OUTN
VSAVE
L11
OUTP
H4
CLK32K
F12
CHGIN
F10
D4
TP_PMU_INT_M
CHGINB
IRQB
H2
E7
XIN
SCL
J1
D6
XOUT
SDA
L1
LX
C9
J3
PWREN1
FB
E5
F8
C332
PWREN2
REFBP
F6
ONKEYB
G9
G5
TEST1
RESETB
J9
TEST2
C333
C313
C315
C300
C342
+VDD_SD_3.3V
+VDD_IO_LOW_1.8V
+VDD_PLL_1.2V
+AVDD_2.6V
+VCC_SYN_2.8V
+VDD_RX_TX_2.8V
AUX_ON
JACK_IN
R307
MIC_BIAS_2.15V
R310
EARSPK_L
R311
EARSPK_R
R312
SIMOFFn
+SIMVCC_M
C355
32KHz_DIGIT
BAT300
C330
PMU_INT_M
SCL
SDA
ONKEY_N
RSTON
L301
+VDD_GSM_CORE_1.2V
R314
C339
C343
R315
C338
C311
C317
C355
C332
C327
R303
C319
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