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Flow Chart of Troubleshooting
7-
2
Power On
4V
2V85
3V05
AVDD_TEMP
2V1
VCC_RX_TX
MIC_BIAS
data
REFERENCE
SIM_RST
INTERFACE
SIM_CLK
2V7
VDD1
BL_VDD
BATTERY
TYP
DVDD1
2V95
2V7
htmp
3V25
CLOCK
HFA
control
internal
SIM_IO
MIC BIAS
SWITCH
VCC_RF_VCO
MODULE
VDD_AMP
CONTROL
INTERFACE
voltage
SUPPLY &
RF power supply
ON-CHIP
(CHARGE
CLOCK
AVDD
VCC_RX_BURST
2V35
PMU (IC)
3V05
INTERRUPT
3V
PUMP+
TEMP HIGH
SIGNAL
12C
CHARGE
2V65
Baseband power supply
VDD_KEY
VCC_CP
&
supply
GENERATOR
ON/OFF
SIMVDD
VDD2
VDD_VIB
htmp
SIM
HIGH VOLTAGE
VOLTAGE
32K
SENSOR
V_ISUP
VCC_SYN
BACKLIGHT
clocks
2V65
TYP
PLL
2V7
status
ovdd
LINREG)
SIGNAL
DVDD2
2V85
CHARGE
CONTROL
SUPPLY
INTERNAL
reference
REAL-TIME
VBAT
SIM
DVDD3
AVDD
MONITOR
internal
5V
32KHz XTAL
OSCILLATOR
SIM
2V7
DVDD4
refgnd
GENERATOR
SIM_VCC
CONTROL
LINREG
X400
2
1
RF power supply
bias currents
SUPPLY
VIB
1V35
PUMP
VDD3
Baseband power supply
2V7
calibration
C405
C421
R400
VBAT
C412
C418
C420
*
C414
C427
VBAT
VDD1
BLVDD
SPVDD
C400
V_ISUP
TP400
C417
BAT400
C401
R402
R401
C416
VCC_CP
*
C425
VBAT
VBAT
VBAT
VDD_KEY
4
5
6
G
7
8
G
G
9
10
G
AVDD_TEMP
CN400
1
2
3
C430
C413
C407
C408
R403
C426
C403
TP401
C409
C422
C404
C402
VBAT
C419
V_ISUP
C428
R450
C431
VBAT
C406
C411
C424
C415
MIC_BIAS
C429
AVDD
F4
VSS4
G4
VSS5
J3
VSS6
G5
K5
VSS7
VSS8
F6
G6
VSS9
D7
VSS15
VSS16
C7
D6
VSS17
VSS18
E5
D5
VSS19
VSS2
F5
VSS20
D4
C4
VSS21
VSS3
VIBVDD
A3
VPROG
H7
VSS1
E4
VSS10
G7
G8
VSS11
VSS12
F7
E6
VSS13
VSS14
E7
SIMSCP
B1
SIMVBAT
B2
SLPMOD
D10
TM
H5
J5
VBACK
VBAT
K4
VCC
C2
B3
VIBVBAT
E3
SDA
F2
SEL12RB
E9
SEL3RB
H4
SIMCLK
C6
SIMGND
A2
B8
SIMIO
SIMSCN
A1
RF1VDDS
F9
RF2SNS
H9
RF2SWS
E10
RF2VDD
H10
RF2VDDS
J10
RFVBAT
G9
C1
RST
D9
RSTO
SCL
K1
REC2
J2
REC3
K2
REFC
H8
REFGND
K6
RF1SNS
F10
E8
RF1SWS
RF1VDD
G10
H6
ISUPD
J4
MICBIAS
J6
NC
1
NC
2
H3
ONKEY
K8
OSC32I
K9
OSC32O
REC1
B9
HVSOC
B10
HVSSCN
A10
HVSSCP
C9
HVSVBAT
C8
HVSVDD
D8
C10
INT
IO
D2
ISUPA
H2
DVDD4
A4
DVDD4ON
F8
DVDD4VBAT
B4
HFAVBAT
A5
B5
HFAVBAT
A6
HFAVDD
HFAVDD
B6
HVSGND
CPRES
D1
DVDD1
F1
DVDD1VBAT
F3
DVDD2
G2
G1
DVDD2
DVDD2VBAT
G3
DVDD3
H1
J1
DVDD3
DVDD3VBAT
BBMSW
C5
BLVBAT
B7
BLVDD
A7
CHRIV
E1
CHRREG
E2
CHRVBAT
D3
CLK
C3
CLK32
A9
PCF50601ET1-N5
U400
K3
AUXON
J7
AVDD
AVDD
K7
AVDDS
K10
AVDDVBAT
J8
J9
AVDDVBAT
BBMGND
A8
TP402
VCC_RX_TX
VCC_SYNTH
VCC_RFVCO
VCC_TX_BURST
BACKLIGHT
VDD1
VDD2
VDD3
VDD_VIB
VIB
JIG_REC
REF_ON
SIMIO
SIMCLK
PON_TX
PON_SYNTH
CHARGER_OK
RSTON
SCL
SDA
32K
IT_PMU
ONKEY_N
RECO1
JACK_IN