Samsung SGH-E910 service manual, GSM, Service Manual, Samsung, Seria E, Samsung SGH-E910
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GSM TELEPHONE
SGH-E910
GSM TELEPHONE
CONTENTS
1. Specification
2. Flow Chart of Troubleshooting
3. Exploded Views and Parts List
4. Electrical Parts List
5. PCB Diagrams
6. Block Diagrams
1. SGH-E910 Specification
1-1. GSM General Specification
GSM900
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1
PCS1900
Freq. Band[MHz]
Uplink/Downlink
890~915
935~960
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range
1~124
0~124 &
975~1023
512~885
512~810
Tx/Rx spacing
45MHz
45MHz
95MHz
80MHz
Mod. Bit rate/
Bit Period
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
270.833kbps
3.692us
Time Slot
Period/Frame
Period
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
576.9us
4.615ms
Modulation
0.3GMSK
0.3GMSK
0.3GMSK
0.3GMSK
MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 15pcl 5pcl ~ 19pcl
0pcl ~ 15pcl
0pcl ~ 15pcl
Sensitivity
-102dBm -102dBm -100dBm -100dBm
TDMA Mux
8
8
8
8
Cell Radius
35Km
35Km
2Km
-
1-1
SGH-E910 Speclflcation
1-2. GSM Tx Power Class
TX Power
control level
GSM900
TX Power
control level
DCS1800
TX Power
control level
PCS1900
5
33±2 dBm
0
30±3 dBm
0
30±3 dBm
6
31±2 dBm
1
28±3 dBm
1
28±3 dBm
7
29±2 dBm
2
26±3 dBm
2
26±3 dBm
8
27±2 dBm
3
24±3 dBm
3
24±3 dBm
9
25±2 dBm
4
22±3 dBm
4
22±3 dBm
10
23±2 dBm
5
20±3 dBm
5
20±3 dBm
11
21±2 dBm
6
18±3 dBm
6
18±3 dBm
12
19±2 dBm
7
16±3 dBm
7
16±3 dBm
13
17±2 dBm
8
14±3 dBm
8
14±3 dBm
14
15±2 dBm
9
12±4 dBm
9
12±4 dBm
15
13±2 dBm
10
10±4 dBm
10
10±4 dBm
16
11±3 dBm
11
8±4dBm
11
8±4dBm
17
9±3dBm
12
6±4 dBm
12
6±4 dBm
18
7±3 dBm
19
5±3 dBm
13
4±4 dBm
13
4±4 dBm
14
2±5 dBm
14
2±5 dBm
15
0±5 dBm
15
0±5 dBm
1-2
2. SGH-E910
Flow Chart of Troubleshooting
2-1 BASEBAND
2-1-1. Power ON
'Power On' does not work
Yes
Check the current
consumption more
than 100mA
No
Download again
Yes
Check the VBAT
more than 3.3V
No
Charge the Battery
Yes
①
Check the
VLDO7_1.8V
of U301 is more than
1.8V
No
Check
U301
and
C310
Yes
②
Check VCCD_1.5 of
U304=1.5V
No
Check
C315 and U301
Check
C343 and U304
Yes
③
Check VRF of
U301=2.9V
No
Check
U301
and
C314
Yes
④
Check C115
Freq = 13MHz
Vp-p > 0.8V
No
Check the clock
C115
Yes
Check the initial operation
Yes
END
2-
1
SGH-E910 Flow Chart of Troubleshooting
VDD34
C11
VSIM_2.9
VDD12
J13
UP_CLK N9
UP_IO P10
SIMCLK
UP_RST R10
U301
SIMRST
SIMDATA
SIM_IO J11
SIM_RST K11
SIM_IO
C309
VRTC_1.5
SIM_CLK
K14
SIM_RST
SIM_CLK
VSIM K12
VRTC
H11
LED2_DRV
G12
VCCD_1.8
KEY_BL
LED1_DRV G13
VCCA_2.9
RING_DRV
F13
VIB_DRV F15
VIB_DRV
VLDO_7 C12
VCCB_2.9
VLDO_6
A14
R303
VL5S_B
C9
VL5S_A D10
VLDO_5
B10
VRF_2.9
VL4S_B
B11
DCS_TX_EN
VCCD_2.9
VL4S_A A12
VLDO1_1.5V
GSM_TX_EN
VLDO_4 B12
VLDO_3 A13
VLDO_2 J12
VLDO_1
G11
VACC F14
CSN_PSC
K8
UP_CS
VBAT
VCCB_2.9
SCLK_PSC L8
SDO_PSC N7
UP_SCLK
C310
C311
C312
C313
C314
C315
C316
C317
BAT301
UP_SDO
UP_SDI
SDI_PSC
M7
VEXT E14
VBAT
E13
CH_BDRV
E11
R301
CH_ISEN F12
CH_RES D14
VCCB_2.9
ICHRG
ADC_AUX2
D15
ADC_AUX1
E10
R302
BP_VF
VREF
A10
V300
CREF
E9
RTC_ALMN
H10
RTCALARM
R304
C318
C322
R320
C319 R305
2-
2
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