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Flow Chart of Troubleshooting
7-2
Power On
10pF
C434
VDD_A
C442
100PF
VREG_RFTX
22K
R407
6.3V
1U F
C43
2
15pF
C450
VREG_SYNT
R405
100K
NC
R411
VREG_TCXO
10K
R406
ZD401
SDB310
Q
100nF
C419
C433
2.2UF
6.3V
C445
100nF
6.3V
2.2UF
C420
C431
10pF
C441
10pF
VBATT
6.3V
2.2UF
C446
510
R410
NC
C444
100nF
C407
10pF
C436
10pF
C423
ML-414RM/F9HE
BAT400
2
NE
G
1
PO
S
VDD_C
100nF
C429
C404
22UF
6.3V
6.3V
C439
4.7UF
C447
10pF
15pF
C451
22UF
6.3V
C437
JIG_ON
VREG_BT
C438
100nF
C425
10pF
C427
1UF
C430
100nF
6.3V
4.7UF
C421
R408
33 K
C498
C499
27pF
27pF
VREG_RFRX
C448
1NF
C449
NC
C440
10pF
1UF
C428
R409
0
FC-135 (0.032768MHz
)
OSC400
2
1
VBATT_PMI
C
VBATT
14
XTAL_OUT
13
C435
1UF
6.3V
VREG_BLUET
VREG_MSMA
35
VREG_MSM
C 37
VREG_MSM
P
38
20
VREG_RFRX
22
VREG_RFTX
VREG_SYNT
9
VREG_TCXO
7
XTAL_I
N
1
VDD_BT
19
VDD_DRV
51
VDD_MAI
N
8
VDD_MSM
36
VDD_RF
21
VDEF
47
VIBRATOR_DRV
39
18
48
SPKR_OUTB
52
SPKR_OUT/RINGER_OUT
50
TCXO_EN
6
TCXO_I
N
4
TCXO_OUT
5
VBACKUP
10
2
VBAT
VCHARGER
25
REF_GND
46
SBCK
30
SBDT
31
SBST
29
SLEEP_CLK
11
53
SPKR_BYP
SPKR_INB
49
SPKR_IN/RINGER_TONE
KEYBD_DRV
24
LCD_DRV
28
MSM_INTERUPTB
61
NC
62
NC
26
PON_RESETB
40 PON_RESET/HKADC9
PS_HOL
D
27
REF_BYP
23
HKADC5
45 HKADC6
44
HKADC7
42
HKADC8
41
ICHARGE
55
ICHARGEOUT
54
KBDPWR_ON
32
17
CHARGER_SEL
56
CHG_CNTB
COIN_CELL
12
GND
57
58
GND
59
GND
60
GND
16
GP1_DRV
GP2_DRV
ADC_BYP
43
BAT_FETB
3
CBLPWRON0
34
CBLPWRON1
33
15
PM6050-56BCCP-2C
U400
VDD_P
10NF
C426
C422
4.7UF
6.3V
6.3V
22UF
C418
C424
10pF
DAN222TL
ZD402
3
1
2
JIG_ON1
JIG_ON
ON_SW_SENSE_N
ON_SW
TCXO
PM_INT_N
RESET_N
RESET_F
PS_HOLD
PMIC2_REF
SBCK
SBDT
SBST
SLEEP_XTAL_I
N
TCXO_EN
TCXO_OUT