Samsung SM-M307F User manual

SM-M307F/FN
Common
Mobile Device CONTENTS
1. Safety Precautions
2. Specification
3. Product Function
4. Exploded View and Parts list
5. MAIN Electrical Parts List
6. Level 1 Repair
7. Level 2 Repair
8. Level 3 Repair
9. Reference Abbreviation
4.
2
Notice: All functionality, features, specifications,
and other product information provided in this
document, including but not limited to, benefits,
design, pricing, components, performance,
availability, and capabiliti-es of the product are
subject to change without notice. Samsung
reserves the right to alter this doc-ument or the
product described herein at anytime, without
obligation to provide notification of such
changes.

Confidential and proprietary-the contents in this service guide subject to change without prior notice
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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Distribution, transmission,orinfringementofanycontentordatafromthisdocumentwithoutSamsung’swritten authorizationis strictlyprohibited.
2. Specification
2-1. GSM General Specification
Item
GSM 850
EGSM 900
DCS1800
PCS1900
Freq. Band[MHz]
Uplink/Downlink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 128~251 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 GSM/
EGPRS
GMSK/
8PSK
GMSK/
8PSK
GMSK/
8PSK
GMSK/
8PSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 4(GMSK)
E2(8PSK)
4(GMSK)
E2(8PSK)
1(GMSK)
E2(8PSK)
1(GMSK)
E2(8PSK)
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 8 8 8 8

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2. Specification
2-2. GSM Tx Power Class
TX Power
control level
GSM850
TX Power
control level
EGSM900
TX Power
control level
DCS1800
TX Power
control level
PCS1900
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
1 1 21±2 dBm 1 1 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
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 1 1 8±4 dBm 1 1 8±4 dBm
17 9±3 dBm 17 9±3 dBm 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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2. Specification
2-3. WCDMA General Specification
Item
WCDMA2100(B1)
WCDMA1900(B2)
WCDMA850(B5)
WCDMA900(B8)
Freq. Band[MHz]
Uplink/Downlink
1920~1980
2110~2170
1850~1910
1930~1990
824~849
869~894
880~915
925~960
ARFCN range
UL：9612~9888
DL：10562~10838
UL：9262~9538
DL：9662~9938
UL：4132~4233
DL：4357~4458
UL：2712~2868
DL：2937~3088
Tx/Rx spacing 190MHz 80MHz 45MHz 45MHz
Mod. Bit rate/
Bit Period
42.2Mbps(DL)
5.42Mbps(UL) 42.2Mbps(DL) 5.42Mbps(UL) 42.2Mbps(DL) 5.42Mbps(UL) 42.2Mbps(DL) 5.42Mbps(UL)
Time Slot Period/
Frame Period
WCDMA
10ms/0.667ms
HSPA
2ms/0.667ms
WCDMA
10ms/0.667ms
HSPA
2ms/0.667ms
WCDMA
10ms/0.667ms
HSPA
2ms/0.667ms
WCDMA
10ms/0.667ms
HSPA
2ms/0.667ms
Modulation QPSK
16QAM
64QAM
QPSK
16QAM
64QAM
QPSK
16QAM
64QAM
QPSK
16QAM
64QAM
MS Power
(dBm) 25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓) 25.7 ~ -49(↓)
Power Class 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm)
Sensitivity -106dBm -104dBm -104dBm -103dBm

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Distribution, transmission,orinfringementofanycontentordatafromthisdocumentwithoutSamsung’swritten authorizationis strictlyprohibited.
2. Specification
2-4. L T E General Specification
Item
LTE Band1
LTE Band3
LTE Band5
LTE Band7
LTE Band8
Freq. Band[MHz]
Uplink/Downlink
1920~1980
2110~2170
1710~1785
1805~1880
824~849
869~894
2500~2570
2620~2690
880~915
925~960
ARFCN range UL:18000~18599
DL:0~599
UL:19200~19949
DL:1200~1949
UL:20400~20649
DL:2400~2649
UL:20750~21449
DL:2750~3449
UL:21450-21799
DL:3450-3799
Tx/Rx spacing
(MHz) 190 95 45 120 45
Channel Bandwidth
(MHz) 5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10 5/10/15/20 1.4/3/5/10
Modulation QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity (QPSK,
BW 10MHz) (dBm) -96.3 -93.3 -94.3 -94.3 -93.3
Item
LTE Band20
LTE Band28
LTE Band38
LTE Band40
LTE Band41
Freq. Band[MHz]
Uplink/Downlink
832~862
791~821
703~748
758~803 2570~2620 2300~2400 2496~2690
ARFCN range UL:24150~24449
DL:6150~6449
UL:27210~27659
DL:9210~9659
UL/DL:37750 ~
38249
UL/DL:38650 ~
39649
UL/DL:39650 ~
41589
Tx/Rx spacing (MHz) -41 55
0
0
0
Channel Bandwidth
(MHz) 5/10/15/20 3/5/10/15/20 5/10/15/20 5/10/15/20 5/10/15/20
Modulation QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
QPSK,16/64QAM
256QAM(DL only)
MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)
Sensitivity(QPSK,
BW 10MHz) (dBm) -93.3 -94.8 -96.3 -96.3 -94.3

Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of anycontentordatafrom thisdocument without Samsung’swritten authorization isstrictlyprohibited.
3. Product Function
Main Function
Item
Description
OS Android P OS V9.0
RF
GSM850 / GSM900 / DCS1800 / PCS1900
WCDMA: B1/ B2/ B5/ B8
LTE: B1/B3/B5/B7/B8/B20/B38/B40/B41
Battery 6000mAh
Base Band 2.3Ghz Quad + 1.7GHz Quad
Other RF GPS, Glonass, Beidou, Galileo / BT5.0 / USB 2.0 / WIFI 802.11 a/b/g/n/ac / NFC(SM-M307FN Only)
Camera Triple Camera ( 48MP(F2.0) + 5MP(F2.2) + 8MP(F2.2)) with LED Flash / Front Camera 16MP(F2.0)
LCD 6.4", FHD+, 2400x1080
RAM 4GB / 6GB
Storage 64GB / 128GB
Sensor Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Proximity Sensor, Grip
sensor
Accessory
Charger: 9V/1.67A and 5V/2.0A AFC charging
Data cable: 3.0pi, 0.8m(USB-C)
Ear phone: 3.5pi, 4pin

Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.
4. Exploded View and Parts List
4-1. Cellular phone Exploded View
QFR01
QAR01
QMO01
QME03
QCA02
QMP01
QCA01
QCR12
QAN02
QCR205
QKP01
QRE01
QSM01
QCR205
QAN01
QCB01
QME02
QME01
QIF01
QBA01
QSP01
※SVC REPAIR TAPE
QRT01

Confidential and proprietary-the contents in this service guide subject to change without prior notice
Distribution, transmission,orinfringementofanycontentordatafromthisdocumentwithoutSamsung’swritten authorizationis strictlyprohibited.
5. MAIN Electrical Parts List
Parts Code
Design LOC
Description
ZD5013 0401-001110 DIODE-SWITCHING
D5000 0404-001250 DIODE-SCHOTTKY
ZD6005,ZD6015 0406-001561 DIODE-TVS
ZD5012 0406-001592 DIODE-TVS
ZD5001 0406-001728 DIODE-TVS
ZD6013,ZD6014 0406-001781 DIODE-TVS
D5001 0406-001808 DIODE-TVS
ZD6011,ZD6012 0406-001809 DIODE-TVS
ZD1001 0406-001829 DIODE-TVS
LED5000 0601-003768 LED
U2006 1001-001911 IC
U2001 1001-001969 IC
U3004 1001-002065 IC
U3001 1001-002077 IC
U2020 1003-002802 IC
UCP400UP 1105-003012 IC
UME5000 1107-002536 IC
U3005 1201-003869 IC
U1001 1201-004029 IC
PAM1000 1201-004109 IC
PAM1001 1201-004209 IC
U1000,U1015 1201-004219 IC
U6001 1201-004240 IC
U3014 1203-008249 IC
U5006 1203-008251 IC
U7002 1203-008326 IC
U2000 1203-008693 IC
U5007 1203-008719 IC
U5003 1203-008729 IC
U3013,U7000 1203-008865 IC
U3000,U3003,U7003 1203-008867 IC
U7004 1203-008926 IC
U5001 1203-009113 IC
U7001 1203-009220 IC
U5000 1203-009224 IC
U5002 1203-009233 IC
U7038 1203-009245 IC
U6012 1205-005750 IC