SGH-E316CSAAWS_SM_EN_20040817113438093_GH68-05425A-TSHOO-9.pdf

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5. SGH-E316 Flow Chart of Troubleshooting
1.Baseband
1. Power ON
Power On does not work
Check the current consumption
Current consumption
>=100mA
No
Download again
Yes
Check the V bat. Voltage
Voltage >= 3.3V
No
Charge the Battery
Yes
Check the pin of U102
pin#J12 >= 2.8V
No
Check U102 and C126
Yes
pin#A13 and pin#A14
=2.8V
No
pin#G11 = 1.8V
No
Check U102 and C127
Yes
Yes
Check the clock signal at pin#28 of U403
Freq = 13MHz ,
Vrms ≥ 300mV and
Vpp 뵃 900mVpp
No
Check the clock generation circuit
(related to OSC402)
Yes
Check the initial operation
END
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SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
2. Initial
Initialization Failure
Yes
The pin #G11 of U102 = 1.8V
and
the pin #J12 of U102 뵃
2.825V ?
No
Check the U102
(If it has some problem, it has to be replaced.)
Yes
Is the pin #K9 of U102
"Low -> High"?
No
Check the U102
(If it has some problem, it has to be replaced.)
Yes
There is 32.768kHz wave
forms at the C319 and C320
No
Check the U302
Yes
Thepin#A4ofU102is"High"
No
Check the U403
Yes
The Voltage is "High" at the
C123,C124,C125
No
Check the U102
Yes
No
LCD display is O.K
Check the LCD Part
Yes
Sound is O.K
No
Check the Audio Part
Yes
END
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SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
3. Sim Part
"Insert SIM" is displayed on the LCD
Yes
Check the SIM
connector's(CN100)
connection to SIM card
No
Resolder or change CN101
Yes
Check the Voltage at
pin#1 of CN100 ≥ 2.8V
No
Check the U102
Yes
Is there any Signals
pin#2, #3, #4 of CN100?
No
Check the U302
Yes
Check the SIM Card
END
VRF
C400
47PF
GSM_PAM_IN
C401
33PF
PCS_PAM_IN
32
31
30
29
28
27
26
25
24
23
22
33
34
GND
35
36
GND
21
GND
RFIGN
GSM_LNA_IN_N
37
38 NC
GND
NC
RFIGP
20
GSM_LNA_IN_P
19
RFIDN
RTX_QP
RTX_QN
RTX_IP
RTX_IN
1 BQP
18
U403
2
BQN
RFIDP
17
PCS_LNA_IN_N
RFIPN
RFIPP
3 BIP
16
PCS_LNA_IN_P
4 BIN
15
5 XTAL1
GND
6
XTAL2
VRF
R428
AFC
7 XAFC
10K,1%
4
GND2
3
8
9
10
11
12
13
14
C454
10NF
HOT
C407
22NF
HOT
GND1
2
1
OSC402
C412
100PF
C413
100PF
100PF
SI-LAB
(Picture 1)
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C414
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SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
D9
AFC
NC6 2
E7
TXP
NC5
1
C137
GNDS17 K10
B5
RAREF2
GNDS16 J10
100NF
B6
RAREF1
GNDS15 J9
R153
0
D7
RXTXIP
GNDS14 J8
R154
0
D6
RXTXIN
GNDS13 J7
R155
0
C7
RXTXQP
H9
GNDS12
R156
0
C6
RXTXQN
GNDS11 H8
GNDS10 H7
AOUTAP
P11 AOUTAP
GNDS9
H6
AOUTAN
N12
AOUTAN
GNDS8 G10
AOUTBP
R12
AOUTBP
GNDS7 G9
P12
AOUTBN
GNDS6 G8
AOUTBN
MICINP
N14
MICINP
GNDS5 G7
M14
MICINN
F10
MICINN
GNDS4
MICOUTP
N15
MICOUTP
GNDS3 F9
MICOUTN
P15
MICOUTN
GNDS2 F8
AUXINP
M15
AUXINP
GNDS1
F7
AUXINN
L14
AUXINN
AUX_ADC3
D13
AUXOUTP
K13
AUXOUTP
AUXOUTN
L13
AUXOUTN
GND_OCTL B4
R13
VXVCM
VDD_OCTL C4
VREGP
M13
VREGP
GNDV P13
R14
VDDV L11
VREGN
R142
NC
R4
DAICK
GNDB F6
GNDD M10
DEBUG_RI
R143
NC
P4
DAIRN
VDDB A6
VDDD N11
DEBUG_DSR
R144
NC
L6
DAIDI
DEBUG_RXD
R145
DEBUG_DCD
NC
M6
DAIDO
VSS4 P6
N4
RTC_CLK
VSS3 R2
CLK32K
D1
XOENAQ
VSS2 K4
R6 MC
VSS1
G5
CLK13M_MC
P5
NC7
VDD_IO2
J4
DSP_INT
P3
DINTR
VDD_IO1 N5
VDD3 N6
JIG_ON
C14
PWR_SW2
VDD2 M3
C15
PWR_SW1N
VDD1 J3
PWR_ON
L7
PSW1_BUF
GND_HCUR F11
K9
RESET_O
GND_PSC2 K15
N10
MODE
GND_PSC1 B15
M9
PWR_KEEP
GNDQ E8
L10
INTRQ
VDD67 B13
L9
VIB_RNG_EN
VDD5 C10
NEG
POS
2
1
(Picture 2)
5-4
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SGH-E316 Flow Chart of Troubleshooting and Circuit Diagrams
4. Charging Part
Abnormal charging operation
No
The pin #17, #18 of CN200 is
TA_VEXT 뵃 5V?
Replace TA or Check CN200
Yes
The pin #2 of U104 is "low"?
No
Check the U104
Yes
No
The pin #3 of U105 is "low"?
Check the U105
Yes
No
The pin #5 of U104 is 3.2~4.2V"?
Check the U104
Yes
The ICHRG = 1V(during charging)
and 뵃 180mV(full charging)?
No
Solder again or change R168
Yes
END
VBAT
CHG_DET
3
1
Q102
2
U106
JIG_ON_IF
Q101
6
5
JIG_ON
2
TA_VEXT
R175
4
VBAT
10K,1%
R170
10K,1%
U104
DRIVE
1 ISENSE
6
3
2
GND
5
VSENSE
TA_VEXT
3 VCC
PROG 4
C150
6.3V
C149
10UF
10V
U105
1
6
R168
10K,1%
ICHRG
2
CHG_ON
R167
CHARGING
47K
TA_VEXT
5
3
4
R169
3K,1%
(Picture 1)
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10UF
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