Samsung SM-N950D service manual PSPEC
2. Specification
2.1 LTE General Specification
Tx Freq. range - 1920~1980 MHz 1710~1785 MHz 830~845 MHz
Rx Freq. range 1575.42MHz 2110~2170 MHz 1805~1880 MHz 875~890 MHz
Channel Bandwidth 2MHz 5, 10,15, 20 MHz 5, 10,15, 20 MHz 5, 10, 15 MHz
Channel Spacing Not Used 100KHz 100KHz 100KHz
Number of Channel 1 25, 50, 75, 100 25, 50, 75, 100 25, 50, 75
Duplex Separation - 90MHz 95MHz 45 MHz
Modulation -
GPS LTE FDD B1 LTE FDD B3 LTE FDD B19
Uplink
DCM : QPSK/16QAM
KDDI :
QPSK/16QAM/64QAM
Downlink
DCM :
QPSK/16QAM/64QAM/25
6QAM
KDDI :
QPSK/16QAM/64QAM/25
6QAM
DCM : QPSK/16QAM
QPSK/16QAM/64QAM
QPSK/16QAM/64QAM/25
QPSK/16QAM/64QAM/25
Uplink
KDDI :
Downlink
DCM :
6QAM
KDDI :
6QAM
Uplink
DCM : QPSK/16QAM
KDDI :
QPSK/16QAM/64QAM
Downlink
DCM :
QPSK/16QAM/64QAM/25
6QAM
KDDI :
QPSK/16QAM/64QAM/25
6QAM
Rx Local Frequency FRx * 2 - - -
Operating Temperature
-30℃ ~ +60℃ -30℃ ~ +60℃ -30℃ ~ +60℃ -30℃ ~ +60℃
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
LTE FDD B21 LTE FDD B26 LTE FDD B28 LTE TDD B41
Tx Freq. range 1447.9~1462.9 MHz 814 ~ 849 MHz 703~748 MHz 2496 ~ 2690 MHz
Rx Freq. range 1495.9~1510.9 MHz 859 ~ 894 MHz 758~803 MHz 2496 ~ 2690 MHz
Channel Bandwidth 5, 10, 15 MHz 1.4, 3, 5, 10 MHz 5, 10, 15, 20 MHz 5, 10, 15, 20 MHz
Channel Spacing 100KHz 100Khz 100KHz 100KHz
Number of Channel 25, 50, 75 6, 15, 25, 50, 75 25, 50, 75,100 25, 50, 75,100
Duplex Separation 48 MHz 45 MHz 55 MHz N/A
Type of Emission
Uplink
DCM : QPSK/16QAM
KDDI : QPSK/16QAM/64QAM
Downlink
DCM :
QPSK/16QAM/64QAM/256QAM
KDDI :
QPSK/16QAM/64QAM/256QAM
KDDI : QPSK/16QAM/64QAM
QPSK/16QAM/64QAM/256QAM
QPSK/16QAM/64QAM/256QAM
Uplink
DCM : QPSK/16QAM
Downlink
DCM :
KDDI :
Uplink
DCM : QPSK/16QAM
KDDI : QPSK/16QAM/64QAM
Downlink
DCM :
QPSK/16QAM/64QAM/256QAM
KDDI :
QPSK/16QAM/64QAM/256QAM
Uplink
DCM : QPSK/16QAM
KDDI : QPSK/16QAM/64QAM
Downlink
DCM :
QPSK/16QAM/64QAM/256QAM
KDDI :
QPSK/16QAM/64QAM/256QAM
Operating Temperature
-30℃ ~ +60℃ -30℃ ~ +60℃ -30℃ ~ +60℃ -30℃ ~ +60℃
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
2. Specification
Tx Freq. range 3400 ~ 3600 MHz
Rx Freq. range 3400 ~ 3600 MHz
Channel Bandwidth 5, 10, 15, 20 MHz
Channel Spacing 100KHz
Number of Channel 25, 50, 75,100
Duplex Separation N/A
Type of Emission
DCM : QPSK/16QAM/64QAM/256QAM
KDDI : QPSK/16QAM/64QAM/256QAM
LTE TDD B42
Uplink
DCM : QPSK/16QAM
KDDI : QPSK/16QAM/64QAM
Downlink
Operating Temperature
-30℃ ~ +60℃
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2. Specification
2-2. GSM/WCDMA General Specification
Freq.
Band[MHz]
Uplink/
Downlink
ARFCN range 128~251
Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz 190MHz 45MHz
Mod. Bit rate/
Bit Period
Time Slot
Period/
Frame Period
GSM850 EGSM 900 DCS1800 PCS1900
824~849
869~894
270.833kbps
3.692us
576.9us
4.615ms
880~915
925~960
0~124
& 975~1023
270.833kbps
3.692us
576.9us
4.615ms
1710~1785
1805~1880
512~885 512~810
270.833kbps
3.692us
576.9us
4.615ms
1850~1910
1930~1990
270.833kbps
3.692us
576.9us
4.615ms
WCDMA
2100
1922~1977
2112~2167
UL:
9612~9888
DL:
10562~10838
3.84Mcps 3.84Mcps
FrameLength:
10ms
Slotlength:
0.667ms
WCMDA
850
824~849
869~894
UL:
4132~4233
DL:
4357~4458
FrameLength:
10ms
Slotlength:
0.667ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK QPSKHQPSK QPSKHQPSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pc l 0pcl ~ 15pcl 0pcl ~ 15pcl 3(max+24dBm) 3(max+24dBm)
Sensitivity -102dBm -102dBm -100dBm -100dBm -106.7dBm -106.7dBm
TDMA Mux 8 8 8 8
Cell Radius 35Km 35Km 2Km 2Km 2Km 2Km
24dBm~
-50dBm
8
24dBm~
-50dBm
8
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2. Specification
2-3. GSM Tx Power Class
TX Power
control level
5 33±2 dBm 5 33±2 dBm 0 30±3 dBm 0 30±3 dBm
6 31±2 dBm 6 31±2 dBm 1 28±3 dBm 1 28±3 dBm
7 29±2 dBm 7 29±2 dBm 2 26±3 dBm 2 26±3 dBm
8 27±2 dBm 8 27±2 dBm 3 24±3 dBm 3 24±3 dBm
9 25±2 dBm 9 25±2 dBm 4 22±3 dBm 4 22±3 dBm
10 23±2 dBm 10 23±2 dBm 5 20±3 dBm 5 20±3 dBm
11 21±2 dBm 11 21±2 dBm 6 18±3 dBm 6 18±3 dBm
12 19±2 dBm 12 19±2 dBm 7 16±3 dBm 7 16±3 dBm
GSM850
TX Power
control level
EGSM900
TX Power
control level
DCS1800
TX Power
control level
PCS1900
13 17±2 dBm 13 17±2 dBm 8 14±3 dBm 8 14±3 dBm
14 15±2 dBm 14 15±2 dBm 9 12±4 dBm 9 12±4 dBm
15 13±2 dBm 15 13±2 dBm 10 10±4 dBm 10 10±4 dBm
16 11±3 dBm 16 11±3 dBm 11 8±4 dBm 11 8±4 dBm
17 9±3dBm 17 9±3dBm 12 6±4 dBm 12 6±4 dBm
18 7±3 dBm 18 7±3 dBm 13 4±4 dBm 13 4±4 dBm
19 5±3 dBm 19 5±3 dBm 14 2±5 dBm 14 2±5 dBm
- - - - 15 0±5 dBm 15 0±5 dBm
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
3. Operation Instruction and Installation
Main Function
Item Description
OS Android V7.1.1
2G GSM 850(B5) / 900(B8) / 1800(B3) / 1900(B2)
3G WCDMA : B1 / B5 / B6 / B19
RF
4G(LTE)
- FDD : B1 / B3 / B4 / B5 / B7 / B/12/ B13 /B17 / B19 / B21 / B26 / B28
- TDD : B38 / B39 / B40 / B41 / 42
Battery
Base Band
Other RF GPS, Glonass, BT 4.2, USB 3.1, WIFI 802.11 a/b/g/n/ac (2.4G+5GHz), NFC, MST
Camera
LCD 6.32” Quad HD, 2960 x 1440, dual edge Super AMOLED
RAM 6GB LPDDR4X + 64GB UFS
Sensor
Accessory
3,300mAh
MSM8998 / 2.35GHz, 1.9GHz
12 MP Rear(wide+tele), Dual Pixel, AF
8.0 MP Front
Accelerometer, Barometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Hall Sensor,
HR Sensor, Iris Sensor, Proximity Sensor, RGB Light Sensor,
Charger : 5V/2A or 9 V/1.67 A
Data cable : USB Type-C
Earjack : 3.5pi, 4Pin
Pressure Sensor
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9. Reference Abbreviate
Reference Abbreviate
― AAC: Advanced Audio Coding.
― AVC : Advanced Video Coding.
― BER : Bit Error Rate
― BPSK: Binary Phase Shift Keying
― CA : Conditional Access
― CDM : Code Division Multiplexing
― C/I : Carrier to Interference
― DMB : Digital Multimedia Broadcasting
― EN : European Standard
― ES : Elementary Stream
― ETSI: European Telecommunications Standards Institute
― MPEG: Moving Picture Experts Group
― PN : Pseudo-random Noise
― PS : Pilot Symbol
― QPSK: Quadrature Phase Shift Keying
― RS : Reed-Solomon
― SI : Service Information
― TDM : Time Division Multiplexing
― TS : Transport Stream
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
1. Safety Precautions
1-1. Repair Precaution
Before attempting any repair or detailed tuning, shield the device from RF noise or static
electricity discharges.
Use only demagnetized tools that are specifically designed for small electronic repairs,
as most electronic parts are sensitive to electromagnetic forces.
Use only high quality screwdrivers when servicing products. Low quality screwdrivers can
easily damage the heads of screws.
Use only conductor wire of the properly gauge and insulation for low resistance, because of the low margin
of error of most testing equipment.
We recommend 22-gauge twisted copper wire.
Hand-soldering is not recommended, because printed circuit boards (PCBs) can be easily
damaged, even with relatively low heat. Never use a soldering iron with a power rating of
more than 100 watts and use only lead-free solder with a melting point below 250°C (482°F).
Prior to disassembling the battery charger for repair, ensure that the AC power is disconnected.
Always use the replacement parts that are registered in the SEC system. Third-party replacement parts
may not function properly.
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Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
1. Safety Precautions
1-2. ESD(Electrostatically Sensitive Devices) Precaution
Many semiconductors and ESDs in electronic devices are particularly sensitive to static discharge and can
be easily damaged by it. We recommend protecting these components with conductive anti-static bags
when you store or transport them.
Always use an anti-static strap or wristband and remove electrostatic buildup or dissipate
static electricity from your body before repairing ESDs.
Ensure that soldering irons have AC adapter with ground wires and that the ground wires are properly
connected.
Use only desoldering tools with plastic tips to prevent static discharge.
Properly shield the work environment from accidental electrostatic discharge before opening
packages containing ESDs.
The potential for static electricity discharge may be increased in low humidity environments,
such as air-conditioned rooms. Increase the airflow to the working area to decrease the
chance of accidental static electricity discharges.
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