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