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Flow Chart of Troubleshooting
9-2
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C321
C
3
2
5
C
3
2
9
C
3
3
4
C
3
5
2
C
3
5
8
C
3
6
5
C
3
6
6
C367
C372
C
4
0
0
C
4
0
1
C
4
0
2
C403
C404
C405
C
4
0
6
C407
C
4
0
8
C409
C410
C
4
1
1
C413
C
4
2
0
C
4
2
1
C422
C
4
2
3
C
4
2
5
C
4
2
6
C
4
2
7
C
4
2
8
C
4
2
9
C
4
3
0
C431
C432
C433
C
4
3
4
C435
C
4
3
6
C
4
3
7
C438
C
4
3
9
C
4
4
0
C
4
4
1
C
4
4
2
D
4
0
0
L
4
0
0
L401
L402
O
S
C
4
0
0
P
M
_
I
N
T
R317
R
3
1
8
R319
R320
R321
R323
R324
R411
R
4
1
4
R415
R
4
1
7
R419
R421
R
4
3
2
R
4
3
3
S
C
1
0
4
S
C
1
0
5
TP_AMUX_OUT
TP_MODE300
T
P
_
M
O
D
E
3
0
1
TP_RF_TCXO
T
P
_
T
C
X
O
_
E
N
U
4
0
0
* Close to Pin C1
VREG_MMC_2.8V
D400
3
1
2
C431
VBATT_4.2V
R432
C423
V_RF_S3_2.7V
C421
V_MSMP_2.6V
V_MSMA_2.6V
PM_INT
V_MSME_1.8V V_MSMC_1.2V
R433
L401
C440
V_TCXO_2.85V
VEXT_5V
C441
C426
OSC400
2
1
PO
S
1
C433
C432
C422
V_RF_S2_2.1V
KPD_PWR_N
L4
VREG_S3
L6
V
D
D
_
S
2
3
VREG_S2
L8
VREG_MMC
L9
VSW_S3
K6
VSW_S2
K7
VREG_MSME
K8
SLEEP_CLK
K9
VREG_RUIM
L10
XTAL_IN
L11
HSET_BIAS
K1
XTAL_OUT
K11
VREG_MSMC
K4
VSW_MSMC
K5
VCOIN
J10
VREG_MSMP
J11
G
N
D
SBDT|SSBI
G8
SBCK
F8
V
R
E
G
_
5
V
G
1
PON_RESET_N
G10
VREG_MSMA
G11
VREG_USB
G2
SBST
E8
V
S
W
_
5
V
F
1
PS_HOLD
F10
BAT_FET_N
E2
ISNS_M
D1
D
N
C
D
1
1
ISNS_P
D2
VREG_RFUBM
B8
VCHG
C1
MSM_INT_N
C10
CHG_CTL_N
C2
VREG_RFRX1
A9
VREG_GP3
B1
VREG_WLAN
B11
V
D
D
_
W
L
A
N
A
1
1
VREG_GP2
A2
VREG_GP1
A3
V
D
D
_
S
P
K
R
A
4
VREG_RFTX
A8
N
C
1
N
C
2
VREG_TCXO
A1
VREG_RFRX2
A10
L400
R417
C436
R421
_
2.1V
L402
C429
C435
C434
R420
V_MSME_1.8V
VREG_USIM_3V
C425
C430
R414
C427
C428
PS_HOLD
RTC_BACKUP
SSBI2_DATA
RESET_N
PS_HOLD
BOOT_SW
ON_SW
PM_INT_N
SLEEP_XTAL_IN
se
p
arate to RF line
R415
C439
TCXO_OUT_1
H10
TCXO_OUT_RF
F11
TCXO_EN_1
D8
TCXO_IN
E11
TCXO_EN_2
E4
SPKR_IN_P
B6
TCXO_OUT_2
B10
SPKR_OUT_M
A5
SPKR_OUT_P
A6
TP_RF_TCXO
TP_TCXO_EN
TCXO
TCXO_EN
TCXO_OUT