samsung sgh-x105 service manual -...
TRANSCRIPT
SGH-X105
SERVICE Manual
GSM TELEPHONE CONTENTS
1. Specification
2. Exploded Views and Parts List
3. Electrical Parts List
4. Flow Chart of Troubleshooting
5. Block Diagrams
6. PCB Diagrams
GSM TELEPHONE
ELECTRONICS
Samsung Electronics Co.,Ltd. AUG. 2003Printed in Korea.
Code No.: GH68-04199A
BASIC.
ⓒ
This Service Manual is a property of Samsung Electronics Co.,Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or domestic law.
SAMSUNG Proprietary-Contents may change without notice
1. SGH-X105 Specification
1-1
This Document can not be used without Samsung's authorization
GSM900Phase 1
EGSM 900Pha se 2
DCS1800Pha se 1
PCS1900
Fre q. Band[MHz]Uplink /Downlink
890~915935~960
880~ 915925~ 960
1710~17851805~1880
1850~ 19101930~ 1990
ARFCN ra nge 1~ 1240~124 &975~ 1023
512~885 512~ 810
Tx/Rx spa cing 45MHz 45MHz 95MHz 80MHz
Mod. Bi t rate/Bi t Period
270.833kbps3.692us
270 .833kbps3 .692us
270 .833kbps3 .692us
270. 833kbps3. 692us
Time SlotPe riod /Fra me Pe riod
576.9us4. 615ms
576 .9us4 .615ms
576 .9us4.615ms
576. 9us4 .615m s
Modulat ion 0 .3GMSK 0. 3GMSK 0. 3GMSK 0.3GMSK
MS Powe r 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm ~0dBm
Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensi t ivi ty -102dBm -102dBm -100dBm -100dBm
TD MA Mux 8 8 8 8
Ce l l Rad ius 35Km 35Km 2Km -
1. GSM General Specification
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SGH-X105 Specification
1-2
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TX Power
control levelGSM900
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
10 23±2 dBm
11 21±2 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3dBm
18 7±3 dBm
19 5±3 dBm
TX Power
control levelPCS1900
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
2. GSM TX power class
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2. SGH-X105 Exploded View and its Parts list
2-1
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1. Cellular phone Exploded View
1
5
2
7
8
9
4
3-1
3-6
3-3
3-4
3-2
3-5 3
6
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SGH-X105 Exploded view and its Part list
2-2
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Location
No.Description SEC CODE Remark
1 FRONT COVER GH75-03140A
2 KEYPAD GH75-03142A
3 MAIN PBA GH92-01510A
3-1 MIC GH30-00041A
3-2 DOME SHEET GH59-00942A
3-3 SCREW 6001-001479
3-4 INTENNA GH42-00314A
3-5 LCD GH07-00385A
3-6 SPEAKER 3001-001442
4 CONNECTOR COVER GH73-02097A
5 VOLUME KEY GH75-03143A
6 MOTOR GH31-00062A
7 REAR COVER GH75-03141A
8 SCREW 6001-001479
9 BATTERY GH43-00980A
2. Cellular phone Parts list
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SGH-X105 Exploded view and its Part list
2-3
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3. Test Jig (GH80-00865A)
3-1. RF Test Cable
(GH39-00090A)
3-2. Test Cable
(GH00-00127A)
3-3. Serial Cable
3-4. Power Supply Cable 3-5. DATA CABLE
(GH39-00159A)
3-6. TA
(GH44-00184A)
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3. SGH-X105 MAIN Electrical Parts List
This Document can not be used without Samsung's authorization
3-1
SEC Code Design LOC
2203-000812 C101,C103,C104,C216
2203-005061 C102,C106,C107,C113
2203-001598 C105
2203-006053 C108,C109,C110,C111
2203-006053 C112,C115,C117,C118
2203-006201 C114
2203-000233 C116,C125,C126,C127
2404-001268 C119,C120,C122
2203-000995 C121,C405
2203-005061 C123,C130,C207,C214
2203-000233 C128,C129,C205,C213
2203-006307 C131
2404-001164 C132
2203-005682 C133,C134,C135,C136
2203-005682 C137,C138,C139,C140
2203-005682 C141,C142,C143,C144
2203-005682 C145,C146,C147,C148
2203-005682 C149,C150,C151,C152
2203-001153 C153,C154,C155,C156
2203-001153 C157,C158,C159,C160
2203-001153 C161,C162,C241
2203-000679 C202,C203,C255,C311
2203-000654 C206,C426
2203-001405 C208,C310,C401,C403
2404-001086 C209,C218
2203-000812 C217,C226,C406,C427
2203-000438 C219,C430,C432,C434
2203-005061 C220,C224,C262,C309
2203-000233 C221,C236,C319,C321
2203-005065 C222,C225,C252
2203-005496 C223,C301,C302
2203-000359 C228
2203-000278 C229,C246,C257,C258
2203-000254 C230,C231,C232,C233
2203-000854 C235,C253,C261
2203-000254 C237,C238,C239,C240
2203-005052 C242
SEC Code Design LOC
2404-001105 C245,C250
2404-001282 C247
2203-001072 C248,C251
2203-000386 C254
2203-005056 C259
2203-005503 C260
2203-000254 C303,C304,C305,C306
2203-000254 C307,C308,C312,C329
2203-005061 C315,C316,C324,C330
2203-000628 C320,C322
2203-002525 C326
2203-000233 C327,C328,C333,C402
2203-005061 C331
2203-005480 C332
2203-001405 C404,C407,C411,C424
2203-002677 C408,C410
2203-000233 C414,C419,C440
2203-005234 C415,C416
2203-000278 C417,C425,C433
2404-001134 C420,C421
2203-000254 C423,C435,C437,C438
2203-002668 C429
2203-001405 C431
2203-000438 C436
2203-000254 C439
3709-001250 CN100
3710-001105 CN101,CN205
3710-001611 CN201
3710-001853 CN202
3705-001287 CN400
3722-001880 CN401
0407-000115 D100
2901-001260 F105,F106,F107,F108
2901-001260 F109
2909-001191 F400
2904-001410 F401
2703-002112 L100
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SGH-X105 Electrical Parts List
This Document can not be used without Samsung's authorization
3-2
SEC Code Design LOC
2703-002313 L301
2703-001907 L402
2703-001207 L404
2703-001751 L405
2703-001543 L406
2703-001737 L407
0601-001647 LED100,LED101,LED102
0601-001647 LED103,LED106,LED107
0601-001647 LED108,LED109,LED110
0601-001647 LED111,LED112,LED113
0601-001402 LED200
4302-001130 M1
2801-003856 OSC300
2809-001260 OSC400
0504-001113 Q100
0502-001201 Q101
0504-000168 Q102,Q400
0504-000167 Q200,Q201
0504-001042 Q203,Q204,Q205
2007-000174 R101,R102,R103,R104
2007-000174 R105,R106,R107,R108
2007-000174 R109,R111
2007-000171 R112,R115,R209,R217
2007-000758 R113,R242
2007-007137 R114
2007-003010 R117,R118,R119,R120
2007-003010 R121,R122,R123,R124
2007-003010 R125,R126,R127,R128
2007-007142 R129,R130,R306
2007-007139 R131
2007-001323 R132
2007-002965 R133,R135
2007-000151 R134,R204,R205,R208
2007-000162 R202,R212,R218,R234
2007-007014 R203
2007-000775 R206
2007-001325 R210,R211
SEC Code Design LOC
2007-000148 R213,R230,R415
2007-000636 R214
2007-007200 R215,R216
2007-000141 R219,R225
2007-001119 R220
2007-000171 R221,R222,R224,R236
2007-000140 R223,R231,R232,R233
2007-000157 R228,R229,R301,R304
2007-000140 R235,R239,R246,R247
2007-000171 R237,R238,R243,R248
2007-007590 R240
2007-000165 R241
2007-000139 R244
2007-000138 R245,R416
2007-000172 R249,R251,R313,R314
2007-000171 R250,R312,R317,R320
2007-000170 R302
2007-007107 R305
2007-007573 R308,R310
2007-000172 R315
2007-000157 R316
2007-000171 R401,R406
2007-000029 R402
2007-003010 R403
2007-001311 R404,R405
2007-001291 R407
2007-001307 R408,R409
2007-000162 R410
2007-001306 R412,R417
2007-000242 R413
2007-002797 R414
3404-001152 SW201,SW202
1203-002902 U100
1203-002127 U101
0506-001052 U102
1203-001518 U103
1203-002633 U105
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SGH-X105 Electrical Parts List
This Document can not be used without Samsung's authorization
3-3
SEC Code Design LOC
1204-001984 U200
1204-001261 U201
GH09-00024A U301
1209-001219 U302
1109-001278 U304
1205-002185 U400
1205-002268 U401
1201-001954 U402
1209-001434 U403
0801-002345 U404
1405-001112 ZD101,ZD113
0404-001172 ZD111
0406-001167 ZD112
0403-001446 ZD114
0403-001427 ZD205
1405-001082 ZD206,ZD207,ZD208
1405-001018 ZD209,ZD219
1405-001082 ZD218,ZD404,ZD409
1405-001082 ZD410,ZD411
0406-001083 ZD412,ZD413,ZD414
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4. SGH-X105 Flow Chart of Troubleshooting
4-1
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1. Power On
Current consumption>=100mA
' Power On ' does not work
Voltage >= 3.3V
Download again
Charge the Battery
pin#11 >= 2.8V Check U100 and C116
pin#39 and pin#33 =2.8V
Check U100 and C115
Check the clocksignal at pin4 of
OSC400Freq = 13MHz ,
Vrms ≥ 300mVand
Vpp = 900mVpp
Check the clock generation circuit(related to OSC400, U401 pin 19)
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#9 = 1.8VNoYes
Check the V bat. Voltage
Check the pin of U100
Check the initial operation
Check the current consumption
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SGH-X105 Flow Chart of Troubleshooting
4-2
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2. Initial
The pin #9 of U100 = 1.8Vand
the pin #10 of U100 =2.825V ?
Initialization Failure
Check the U100(If it has some problem, it has to be
replaced.)
END
No
Yes
Is the pin #19 ofU100
"Low -> High"?
Yes
Check the U301There is 32.768kHz
wave forms at the C320and C322
Check the LCD Part
Yes
No
No
Yes
Yes
Yes
The Voltage is "High"at the C111,C118
Check the Audio Part
No
Check the U100(If it has some problem, it has to be
replaced.)
Check the U200The pin #25 of U100 is"High"
Check the U100
LCD display is O.KNo
No
Yes
Yes
Sound is O.KNo
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SGH-X105 Flow Chart of Troubleshooting
4-3
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3. Sim Part
Is there any Signalspin#52, #53, #54 of U100?
"Insert SIM" is displayed on the LCD
Check the U301
Check the SIM Card
END
No
Yes
Yes
Yes
NoCheck the U100Is there any Signals
pin#1, #2, #3, #4 of CN100?
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SGH-X105 Flow Chart of Troubleshooting
4-4
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VBAT
1UF
C13
1
C11
81U
F
1.2K
,1%
R11
4
Q10
0
13 2
R11
2 0
33P
FC
101
33P
FC
134
33P
F33
PF
C13
3
33P
FC
104
C15
2
VBAT
VC
C_1
.8A
VC
CD
330K
R11
3
16V
C11
11U
F
C13
210
UF
C10
610
0NF
C14
733
PF
C14
633
PF
ZD11
1
C13
633
PF
33P
FC
135
VBA
T
33P
FC
103
100N
FC
123
VC
CD
33P
FC
144
15uH
L100
33P
FC
151
33P
FC
150
C14
933
PF
33P
FC
148
_SH
DN
4
C13
933
PF
U10
5
3F
B
GN
D21
SW
5V
IN
VR
F
33P
FC
145
15R13
515R
133
1UF
C11
2
M1
NEG2
POS1
1UF
C11
0
100N
FC
113
C13
010
0NF
C10
81U
F
VSIM48
9
VLD
O_
21139
VLD
O_
3
VLD
O_
437
VLD
O_
53342
VLD
O_
6
40V
LDO
_7
VREF30
VR
TC12
VD
D67
41
1V
EX
T
VIB_DRV4
36V
L4S
_AV
L4S
_B3532
VL5
S_A
VL5
S_B
31
VLD
O_
1
SIM_RST
53U
P_C
LKU
P_I
O52
UP
_RS
T54
VA
CC3
VB
AT
2
10V
DD
12
VD
D34
38
VD
D5
34
RING_DRV
RIN
G_P
WM
5513R
TC_A
LMN
SC
LK17
SD
I15
SD
O16
SIM_CLK5051 SIM_IO
49
INTR
Q
7LED1_DRV
LED2_DRV8
PS
W1_
BU
F2021
PW
R_K
EE
P
PW
R_S
W1
N46 47
PW
R_S
W2
RE
SE
TN19
5
63GNDGND
64
GND6566
GND
60G
ND
D
GNDD1
628 GNDQ
14
EN
_5A
EN
_5B
27
GN
D57
GND6768
GND
58G
ND
GN
D59
61GNDGND62
AD
C_T
RIG
BT
EM
P43
29 CREF
18C
SN
22E
N_3
EN
_4[0
]23 24
EN
_4[1
]E
N_5
25 26
U10
0
AD
C_A
UX
144 45
AD
C_A
UX
256
C10
710
0NF
C13
833
PF
33P
FC
137
2.2U
FC
105
C11
610
0PF
C10
210
0NF
R11
50
G 910G
11 22
33
44 5
5 66
G 78G
CN
100
VOSC
VPAC
VC
CA
RD
B118
RE
SE
TB
RS
9
VC
C29 30
VC
C
10W
RD
2D
UM
MY
31D
UM
MY
DU
MM
Y32
DU
MM
Y5 6
DU
MM
Y
GN
D28 3
LED
+
LED
-4
D3
15 16D
4D
517 18
D6
D7
19 20D
8D
921
DU
MM
Y1
D1
13 22D
10D
1123 24
D12
D13
25 26D
14D
152714
D2
U10
4
7C
S1B
12D
0
2.2U
FC
114
1UF
C10
9
VR
TC
C11
7 1UF
R13
415
K
1UF
C11
5
VC
CB
ZD11
4
C14
333
PF
C14
233
PF
33P
FC
141
33P
FC
140
BLI
GH
T_P
BLI
GH
T_N
LCD
_CS
L
A(2)
L
CP
_WE
NL
CP
_OE
NL
UP
_CS
RS
T
BLI
GH
T_N
BLI
GH
T_P
VR
EF
SIM
DA
TA
SIM
RS
TS
IMC
LK
PW
R_O
NJI
G_O
NR
TCA
LAR
M
EN
_VR
FE
N_V
PAC
XO
EN
A
UP
_SD
I
UP
_SC
LK
LED
_EN
KE
Y_R
OW
(0)
KE
Y_C
OL(
2)
TA
_VE
XT
PW
R_K
EE
P
BA
CK
LIG
HT
RS
T
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SGH-X105 Flow Chart of Troubleshooting
4-5
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4. Charging Part
The pin #17, #18 ofCN201 is TA_VEXT =
5V?
Abnormal charging operation
The pin #3 of U101 is"low"?
Replace TA or Check CN201
Check the U101
Check the Q101
END
No
Yes
Yes
Yes
No
NoThe pin #3 of Q101 is
"low"?
NoSolder again or change R130
Yes
The ICHRG = 1V(during
charging) and = 180mV(full
charging)?
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SGH-X105 Flow Chart of Troubleshooting
4-6
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U102
2
5
6
3
1
4
4
Q101
3
1256
U101
6DRIVE
2 GND
ISENSE1
4PROGVCC3
VSENSE5
VBAT
47K,1%R131
10UFC120
10V13
2
Q102
10K,1%R129 10V
10UFC119
10K,1%R130
3KR132
CHG_DET
TA_VEXT
CHG_ON
TA_VEXT
ICHRG
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SGH-X105 Flow Chart of Troubleshooting
4-7
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5. Microphone Part
Is the assembled statusof microphone O.K?
Microphone does not work
C247 = 2.5V
Reassemble the microphone
Solder the microphone again or
Replace C225, R220, C247, R219 R214
END
No
Yes
Yes
Yes
Yes
No
Is microphone ok?No
Check U200
Check the reference voltage on mic path
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SGH-X105 Flow Chart of Troubleshooting
4-8
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EA
R_M
IC_P
EA
R_S
PK
_P
JAC
K_I
N
NC
R22
6
6.3V
C25
010
UF
R22
4 0
R23
60
C26
139
PF
0R
237
C25
156
PF
R24
120
0K10
PF
C25
7
C22
8
VC
CA
150P
F
R21
3
R21
92.
2K
10K
ZD411
C24
5
680
R22
06.
3V10
UF
NC
C24
3
C24
856
PF
39P
FC
235
10P
FC
229
C24
610
PF
R23
0
10K
0R21
7
NC
C24
9
MA
IN_M
ICIC
EB
ER
G-F
PC
B
C25
527
PF
15P
FC
254
1KR22
3
180P
FC
260
VC
CA
R24
082
K,1
%C22
51U
FC
226
33P
F
ZD404
NC
C25
6
VC
CD
C25
2
1UF
C25
810
PF
330K
ZD410
6.8P
F
R24
2
C25
9
0R
222
R22
52.
2K
R21
4
270K
3 2
ZD409
Q40
0
1
33U
FC
247
39P
FC
253
3 1
100K
R23
4
CN
401
2 6 5 4JA
CK
_IN
AU
XIN
AU
XO
UT
MIC
OU
T
MIC
IN
EA
R_S
WIT
CH
AO
UT
BP
AO
UT
BN
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SGH-X105 Flow Chart of Troubleshooting
4-9
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6. Speaker Part
Receiver
Probe power of C262O.K?
Can not voice from receiver
Cheak power supplyfor U200
VCCD,VCCAO.K?
Check U100
YES
No
Yes
NoReceiver U200O.K?
Replace Receiver
Receiver U301
Yes
END
No
RECNRECEIVE R
ZD20
7
ZD20
6
RECP
11
2210R251
10R249
0R250
AOUTAN
AOUTAP
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SGH-X105 Flow Chart of Troubleshooting
4-10
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7. Speaker Part
Loud speaker
Check signals of CN205O.K
No Melody from Loud Speaker
Check Power of U201PIN #15,32,6,7
O.K?
Check data linesof U200
O.K
END
Yes
Replace Speaker
YES
No
Check U100
No
No
Check LCD and Memory
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SGH-X105 Flow Chart of Troubleshooting
4-11
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SPEAKE R
6.3V4.7UFC209
/IRQ
3
31 /RD
4
/RS
T
/WR28
SP
OU
T1
1718
SP
OU
T2
SPVD D 15
16
SP
VS
S
VD
D
7
VR
EF
98
VS
S
29 /CS
14EQ3
10HPOUT-L/MONO
HPOUT-R 11
32 IOVDD
2
LED
MT
R19
NC
56
PLL
C25 24
D3
D4
23 22
D5
21
D6
20D
7
12EQ1
EQ213U201
A030
1
CLK
I
27 D0
D126
D2
VCCD
R21
1
R21
03.
3K
C214100NF3.
3K
C213100PF
NCC201
R207NC
CN205-1
1
270PFC206
C20227PF
6.3V4.7UFC218
R20515K
27PFC203
22NF
C208
VBAT
100NFC220
2
NCC21033K
1NFC219
R206
R203 51K
VCCD
100NFC207
0R209
DL(0)
A(0)
VIB
_EN
DL(
7)
DL(
6)
DL(
5)
DL(
4)
DL(
3)
DL(
2)
DL(1)
CP_WENL
RST
CP_OENL
YMU_IRQ
YMU_EN
YMU_LED
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Flow Chart of Troubleshooting
4-12
This Document can not be used without Samsung's authorization
F400 CHECKpin13 ≥ -65dBm ?
8. EGSM Reciever
CONTINUOUS RX ONRF INPUT : 62CHAMP : -50dBm
NORMAL CONDITIONcatch the channel?
U401pin 12,13≥-20dBm ?
F400 CHECKpin1, 2 ≥ -65dBm ?
U401 CHECKpin21,22 ≥ -65dBm ?
U403 CHECKpin 25,28 : 3V ?
Check soldered status ofR402
CN400resolder or change
F400resolder or change
C408,C410,L402resolder or change
U100pin33 , C118check or resolder
U403 CHECKpin 7 : 13MHz ?Vp-p : 860mV?
OSC400 CHECKpin 4 : clean 3V ?
U403 change orresolder
U401 CHECKpin 14,23,26,32:
clean 2.8V?
C438,R416resolder
OSC400 change orresolder
U100pin33, C111check or resolder
U401 pin3,4Vp-p : 240mV?
U400 CHECKpin6, 20 : 2.8V ?
U400resolder or change
U401 pin1, 2Vp-p : 250mV ?
U401resolder or change
U400 pin 2,3,4,5Vp-p : 100mV ?
CHECKU200
NO
YESNO
NO
NO
NO NO
NO
NO NO
NO
NO
NO
NO
NO
YES
YES
YES
YESYES
YES YES YES
YES
YES
YES
YES
YES
OSC400 CHECKpin 3 : 13MHz ?Vp-p : 950mV?
U100pin33 , C118check or resolder
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Flow Chart of Troubleshooting
4-13
This Document can not be used without Samsung's authorization
9. EGSM transmitter
F400 pin 13 :about 2~3 dBm?
CN400, C406check&change
F400pin11 : 2.8 V?
U200,Q203check & change
BetweenC429&R406≒ 4~5dBm?
F400check & change
C420 : 3.7 V?
NO NO
YES
YES
YES
NO
NOBATTERY, U100check & change
BetweenR410& U402 :
1.2V?
YES
NOR410
check & change
R407:≒ -5dBm ?
YES
C427 : 3V?
YES
YES
U402change
NO
U200check
U200check & change
YES
NO
U401pin14,23,26,32 :
2.8V ?
U100pin39,C111change or resolder
YES
U401pin9,10,12,13
:-20dBm ?
U401pin5,6,7,8 :1.7V ?
YES
U200change
NO
NO
U402change or resolder
YES
U403pin5,25,28: 3V ?
NOU100 pin33,C118
change or resolder
NO
U403pin 7 : 13MHz?Vp-p: 950mV
YES
U403pin9,10,11,1213
: 3V?
YES
YES
U401change or resolder
OSC400pin 3 : 13MHz?Vp-p : 950mV
OSC400change or resolder
U200check or change
0SC801pin 4 : 3V ?
U100 pin33,C118change or resolder
U403change or resolder
NONO
YES
NO
YES
NO
CONTINUS TX ON CONDITIONTX POWER DAC:500 CODE APPLIED
CH:62RBW : 100KHzVBW : 100KHzSPAN : 10MHz
REF LEV. : 10dBmATT. : 20dB
NO
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Flow Chart of Troubleshooting
4-14
This Document can not be used without Samsung's authorization
F400 CHECKpin13 ≥ -65dBm ?
10. PCS Reciever
CONTINUOUS RX ONRF INPUT : 660CH
AMP : -50dBm
NORMAL CONDITIONcatch the channel?
Check soldered status ofR402,L401
U401pin 12,13≥-20dBm ?
F400 CHECKpin6 ≥ -65dBm ?
F401 CHECKpin4,6 ≥ -65dBm ?
U401 CHECKpin17,18 ≥ -65dBm ?
U403 CHECKpin 25,28 : 3V ?
CN400resolder or change
F400resolder or change
F401resolder or change
C415,U415,L404resolder or change
U100pin33 , C118check or resolder
U403 CHECKpin 7 : 13MHz ?Vp-p : 860mV?
OSC400 CHECKpin 4 : clean 3V ?
U403 change orresolder
U401 CHECKpin 14,23,26,32:
clean 2.8V?
C439resolder
OSC400 change orresolder
U100pin39, C111check or resolder
U401 pin3,4Vp-p : 240mV?
U400 CHECKpin6, 20 : 2.8V ?
U400resolder or change
U401 pin1,2Vp-p : 250mV ?
U401resolder or change
U400 pin 2,3,4,5Vp-p : 100mV ?
CHECKU200
NO
YESNO
NO
NO
NO
NO NO
NO
NO NO
NO
NO
NO
NO
YES
YES
YES
YES
YES YES
YES YES YES
YES
YES
YES
YES
YES
OSC400 CHECKpin 3 : 13MHz ?Vp-p : 950mV?
NOU100pin33 , C118check or resolder
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Flow Chart of Troubleshooting
4-15
This Document can not be used without Samsung's authorization
11. PCS transmitter
F400 pin 13 :about 2~3 dBm?
CN400, R402check&change
F400pin9 : 2.8 V?
U200,Q204check & change
BetweenF400&L407:≒4~5dBm?
F400check & change
C420 : 3.7 V?
NO NO
YES
YES
YES
NO
NOBATTERY, U100check & change
BetweenR408& U402
:1.2V?
YES
NOR408
check & change
NO
R1005:≒ -5dBm ?
YES
C427 : 3V?
YES
YES
U402change or resolder
NO
U200check
YES
U200check
NO
U401pin14,23,26,32 :
2.8V ?
U100 pin39,C111change or resolder
YES
U401pin9,10,12,13
:-20dBm ?
U401pin5,6,7,8 :1.7V ?
YES
U200change
NO
NO
U402change or resolder
YES
U403pin5,25,28: 3V ?
NOU100 pin33,C118
change or resolder
NO
U403pin 7 : 13MHz?Vp-p: 950mV
YES
U403pin9,10,11,1213
: 3V?
YES
YES
U401change or resolder
OSC400pin 3 : 13MHz?Vp-p : 950mV
OSC400change or resolder
U200check or change
OSC400pin 4 : 3V ?
U100 pin33,C118change or resolder
U403change or resolder
NONO
YES
NO
YES
NO
CONTINUOUS TX ON CONDITION
CH : 698CH(DCS),660CH(PCS)
TX POWER CODE: 350 CODE Aplied
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Flow Chart of Troubleshooting
4-16
This Document can not be used without Samsung's authorization
MIC
RO
ST
RIP
LINE
RF
3140
10P
F
VO
SC
C43
3
VR
F
C42
1
6.3V
CN
400
G1
3
G2
4
IN1
OU
T2
100U
F
C43
51
0NF
C43
810
NF
OS
C40
0
2
GND
3
OUTVCC
4
VT
1
1.2P
F
270P
FC
426
C41
6
1NF
C43
2
22N
FC
401
0.75
PF
C40
8
100
R41
6
10N
FC
423
22N
FC
424
10P
FC
425
TP
717T
P71
8
VR
F
TP
715T
P71
6
560
R41
4
G1
1G
23
5G
3
IN2
OU
T1
4 6O
UT
2
R41
510
K
F4
01
VR
F
AN
T
11
22
PC
SR
X
13
VC1
VC2
11
VC3
5
R40
20
EG
SM
RX
EG
SM
RX
2
12
EG
SM
TX
7GG
14
16
GG
19
20
G
6
F4
00
ANT1
5
DC
SR
X3
DC
SR
X4
DC
S/P
CS
TX1
0
1
NC
R41
1
10
0K
R41
0
22N
FC
403
C42
2N
C
C43
01
NF
C41
122
NF
0R
406
NC
C41
8N
C C42
8
2.7n
HL4
07
NC
C40
9
L402
27nH
150
C43
91
0NF
R41
2
C42
90.
5PF
0.75
PF
C41
0
47P
FC
405
C41
51.
2PF
30R
407
C40
422
NF
C43
41
NF
R41
715
0
4O
UT
VC
C5
VR
F
U4
04
3G
ND
2INNC
1
VP
AC
VR
AM
P65
VR
EG
VB
AT
7
GS
M8
50
/90
0O
UT9
PC
SO
UT
11
TXE
N3
VB
AT
T4
VCC
10
8
VCC2VCC2
12
U40
2
BA
ND
21
DC
SIN
GN
D 13
GS
M85
0/90
0IN
1.5K
R41
3
VO
SC
C43
61N
F
33P
FC
406
VO
SC
270
R40
9
180
R40
5
R40
8270
R40
4
100P
FC
419
180
22N
FC
431
206.
3VR
403
VDDC
7XIN19
XOUT
100U
F
C42
0
RX
IP
3R
XQ
N
RX
QP
2
17
SCLK
SDI
18
15
SD
O
SENB
16
VDDA20 6
GND
GND22
GND23
GND24
ION
12
11
IOP
PD
NB
14
5R
XIN
4
10
CKN
CKP9
1G
ND
8GND
13
GN
D
21
U4
00
R40
10
33nH
L406
VO
SC
L404
C43
710
NF
6.8n
H
VR
F
C44
010
0PF
3.9n
HL4
05
VO
SC
NC
L401
28 25
VD
DR
XIN7
VR
FC
402
100P
F
16
23
RF
LO
N
RF
LO
P24
SC
LK
12 13
SD
I
SD
O
10 11
SE
NB
5VDDD
VD
DI 2627
IFL
OP
NC
8
NC
149
PD
NB
20RFLA
RFLB 19
RFLC17
RFLD
GND
18GND
21GND
GN
D
2229
GN
D
GN
D30
3 IFLA
IFLB2
IFL
ON
U4
03
1 GND
31
GN
D
GN
D
32
GND4
GND6
15
TX
IP
TX
QN
87T
XQ
P
23
VD
D1
VDD214
VDD332
VDD4
26
RF
IGP
RF
IPN
18
17
RF
IPP
RFLON13
RFLOP12
RF
OD
24
25 RFOG
6T
XIN
52IO
P
29
L1
L2
28
31
PDNB
RF
IDN
20
19
RF
IDP
RF
IGN
22
21
GND
GND
30
33
GND
GND34
GND35
GND36
10
IFLON
IFLOP
9
ION
1
U4
01
CK
N3
CK
P4
DIAG116
15
DIAG2
11
GND
27
22N
FC
407
10P
FC
417
33P
FC
427
100P
FC
414
DP
CS
_PA
M_I
N
GS
M_P
AM
_IN
TX_B
AN
D_S
EL
TX
PO
WE
R
AF
C
CL
K1
3M
_T
R
CLK
13M
_MC
CLK
13M
_RF
CLK
13M
_YM
U
TX
_EN
PC
S_R
X_E
N
GS
M_T
X_E
ND
CS
_TX
_EN
GS
M_P
AM
_IN
DP
CS
_PA
M_I
NS
I_E
N
SE
RD
AT
SDO
SD
O
SI_
EN
TXIN
TXIP
TX
QN
TX
QP
SY
N_E
N
RX
IP
RX
IN
RX
QP
RX
QN
CLK
13M
_RF
SE
RL
E
SE
RC
LK
SE
RD
AT
SE
RC
LK
SE
RL
E
SAMSUNG Proprietary-Contents may change without notice
5. SGH-X105 Block Diagrams
This Document can not be used without Samsung's authorization
5-1
1. RF Solution Block Diagram
Antenna
ASM
RF
FILTER
RF
FILTER
SI4200
SI4133T
π/ 2
RF
PLL
PGA
SERIAL DATA
INTERFACE
GSM:890MHz~915MHz
PCS:1850MHz~1910MHz
PAM
GSM:925MHz~960MHz
PCS:1930MHz~1990MHz I,Q
CSP1093 TRIDENT
DSP16000
ARM7TDMI
UI
SERIAL
DATA,
CLK,
LE
LNA
PGA
A D C
A D C
IF
PLL
D E T
100KHz
CHANNEL
FILTER
D A C
D A C
PGA
PGA
R X
TCVCXO13 MHz
C L K
A F C
T X
I,Q
SI4201
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 Block Diagrams
This Document can not be used without Samsung's authorization
5-2
2. Base Band Solution Block Diagram
TRIDENT
B'D B'D conn.
Audio
Keypad
LCD
Memory part
X-TAL32.768KHz
RF SOLUTION
- RF IC- PAM- MAIN VCO- TX VCO- IF VCO
GPIO
POWER
(DC/DC,CHARGER,
SIM)
X-TAL
13MHz
RS232
CSP1093
Audio Part
LCD
KEYBOARD
SRAM
(16M)
FLASHROM
(128M)
TXIPTXINTXQPTXQNRXIPRXINRXQPRXQNSERCKSERLESERDARFOVLTXPOCTL
<RF DIRVER>TXI/QRX I/QTXPSERCKSERLESERDAOCTL
IORWN
AB[8:0]DB[15:0]
INT1IRQxPAxRSTB
IORWN
AB[8:0]DB[15:0]INT1IRQxPAxRSTB
ARM
JTAG/ICE
DAICKDAIRNDAIDODAIDI
DAIDSPJTAG JTAG
GPRS
ACC
PPI(ProgrammablePeripheral I/O)
RTC
JTAG/ICE
DSP16000
ARM7TDMI
EMI
CCD
CCD conn.
SAMSUNG Proprietary-Contents may change without notice
6. SGH-X105 PCB Diagrams
6-1
This Document can not be used without Samsung's authorization
1. Main PCB Top Diagram
AN
T
C101
C10
2C
103
C10
4
C105
C10
6C
107
C108 C109C110
C11
1
C11
2
C11
3
C11
4C
115
C116
C11
7
C11
8
C119
C120
C121
C122
C123
C12
5
C12
6
C12
7
C12
8
C12
9
C130
C13
1
C132
C201C202C203
C20
5
C20
6 C207
C208C209
C21
0
C211
C213
C214
C215
C21
6C
217
C218
C219
C220
C221
C22
2
C223
C224
C225
C226C228C229
C230C231
C23
2
C233
C23
5
C236
C237
C238
C239
C24
0
C241C242
C243
C24
4
C245
C246C247
C24
8
C24
9
C250
C25
1
C252
C253
C25
4 C25
5
C256
C25
7
C258C259
C260
C261
C26
2
C301
C30
2
C303
C30
4
C30
5
C30
6
C307C308
C30
9
C310
C31
1C
312
C315C316
C319
C320C321C322
C324
C32
6
C32
7C
328
C32
9
C33
0
C33
1
C33
2
C33
3
C401
C402C403
C404C40
5C
406
C40
7C408
C40
9
C410
C411
C414
C41
5C
416
C41
7
C41
8
C41
9
C42
0C
421
C42
2
C42
3C424
C42
5
C42
6C
427
C42
8C
429
C43
0
C43
1
C432
C433
C43
4
C435
C43
6
C437
C438
C439
C44
0
CN
100
CN
201
CN
202
CN205
CN400
CN401
D10
0
F10
5F1
06F1
07F
108
F109
F400
F401
G1
G2
G3
G4
L100
L301
L401
L402
L404
L405
L406
L407
M1
OSC300
OS
C40
0
Q100
Q101
Q10
2
Q20
0Q
201
Q203Q204 Q205
Q40
0
R11
2
R11
3
R114R11
5
R12
9
R130R131
R132
R133
R13
4
R135
R20
2
R20
3
R20
4
R20
5
R206R20
7
R20
8
R209
R210
R211
R212
R213
R21
4
R215R216
R217
R218
R219
R220
R221
R22
2
R223
R22
4
R225
R22
6
R228
R229
R23
0
R231R232
R233
R234
R235
R23
6
R23
7
R238
R239
R240R24
1
R242
R24
3
R246
R24
7
R24
8
R30
1
R302
R304
R305
R30
6R
308
R31
0
R31
2
R31
3
R31
4
R31
5
R31
6R
317
R31
8
R31
9R
320
R401
R40
2
R403
R40
4
R405
R406
R407R408 R409
R41
0R
411
R412
R41
3R
414
R415
R41
6 R417
SW201 SW202
U100
U101
U10
2
U103
U105
U200
U20
1
U30
1
U30
2
U304
U400
U40
1
U402
U40
3
U40
4
ZD
111
ZD
112
ZD114
ZD205
ZD208
ZD
209
ZD218ZD219
ZD404
ZD40
9ZD
410
ZD41
1
ZD41
2
ZD413
ZD41
4
SAMSUNG Proprietary-Contents may change without notice
SGH-X105 PCB Diagrams
6-2
This Document can not be used without Samsung's authorization
2. Main PCB Bottom Diagram
*
0
1
2
3
4
5
6
7
8
9
C&
I
C133
C134
C135C136
C137
C138C139
C140
C141C142
C143
C144C145
C146
C147C148
C149
C150C151
C152
C153 C154
C155 C156C157 C158
C159
C160
C161
C162
CN101
DO
WN
GN
D1
LED
100
LED101
LED102
LED
103
LED
106LE
D107
LED108
LED109
LED110
LED111
LED112
LED113
LED
200
LEFT
MA
IN_M
IC
ME
NU
PW
R
R101
R102
R103
R104
R105
R106
R107
R108
R109
R111
R117
R118
R119
R120
R121
R122
R123
R124
R125
R126
R127
R128
R244R245
R249
R250
R251
RECP
RIGHT
SE
ND
SH
AR
P ST
O
T1T
2
T3
T4
T5
T6
TP
715
TP
716
TP
717 TP
718
U104
UP
VC
CD
ZD101
ZD
113
ZD206
ZD207