Samsung SM-A920F Manual de usuario

SM-A920F 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 data

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.

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

1-2. 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.

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.

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 32.8dBm~5dBm 33dBm~5dBm 29.5dBm~0dBm 29.8dBm~0dBm

Power Class 4(GMSK)

E2(8PSK)

4(GMSK)

E2(8PSK)

1(GMSK)

E2(8PSK)

1(GMSK)

E2(8PSK)

Sensitivity -109.5dBm -109.5dBm -108.5dBm -108dBm

TDMA Mux 8 8 8 8

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.

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

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

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±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

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.

2. Specification

2-3. WCDMA General Specification

Item WCDMA2100(B1) WCDMA1900(B2) WCDMA1700(B4) WCDMA850(B5) WCDMA900(B8)

Freq. Band[MHz]

Uplink/Downlink

1920~1980

2110~2170

1850~1910

1930~1990

1710~1755

2110~2155

824~849

869~894

880~915

925~960

ARFCN range UL：9612~9888

DL：10562~10838

UL：9262~9538

DL：9662~9938

UL：1312~1513

DL：1537~1738

UL：4132~4233

DL：4357~4458

UL：2712~2868

DL：2937~3088

Tx/Rx spacing 190MHz 80MHz 400MHz 45MHz 45MHz

Mod. Bit rate/

Bit Period

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

WCDMA

10ms/0.667ms

HSPA

2ms/0.667ms

Modulation QPSK

16QAM

64QAM

QPSK

16QAM

64QAM

QPSK

16QAM

64QAM

QPSK

16QAM

64QAM

QPSK

16QAM

64QAM

MS Power

(dBm) 23.5 ~ -49(↓) 22.5 ~ -49(↓) 22.5 ~ -49(↓) 23 ~ -49(↓) 22.5 ~ -49(↓)

Power Class 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm) 3(max+24dBm)

Sensitivity -111.0dBm -110dBm -110dBm -111.5dBm -111.5dBm

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.

2. Specification

2-4. LTE General Specification

Item LTE Band1 LTE Band2 LTE Band3 LTE Band4 LTE Band5

Freq. Band[MHz]

Uplink/Downlink

1920~1980

2110~2170

1850~1910

1930~1990

1710~1785

1805~1880

1710~1755

2110~2155

824~849

869~894

ARFCN range UL:18000~18599

DL:0~599

UL:18600~19199

DL:600~1199

UL:19200~19949

DL:1200~1949

UL:19950~20399

DL:1950~2399

UL:20400~20649

DL:2400~2649

Tx/Rx spacing

(MHz) 190 80 95 400 45

Channel Bandwidth

(MHz) 5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10/15/20 1.4/3/5/10/15/20 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)

-100 -98.5 -99 -99 -100

Item LTE Band7 LTE Band8 LTE Band12 LTE Band13

Freq. Band[MHz]

Uplink/Downlink

2500~2570

2620~2690

880~915

925~960

699~716

729~746

777~787

746~756

ARFCN range UL:20750~21449

DL:2750~3449

UL:21450-21799

DL:3450-3799

UL:23010~23179

DL:5010~5179

UL:23180~23179

DL:5180~5279

Tx/Rx spacing

(MHz) 120 45 30 -31

Channel Bandwidth

(MHz) 5/10/15/20 1.4/3/5/10 1.4/3/5/10 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)

MS Power (dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)

Sensitivity

(QPSK, BW 10MHz)

(dBm)

-99 -100 -99 -99

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.

2. Specification

Item LTE Band17 LTE Band20 LTE Band26 LTE Band28

Freq. Band[MHz]

Uplink/Downlink

704~716

734~746

832~862

791~821

814~849

859~894

703~748

758~803

ARFCN range UL:23730~23849

DL:5730~5849

UL:24150~24449

DL:6150~6449

UL:26690~27039

DL:8690~9039

UL:27210~27659

DL:9210~9659

Tx/Rx spacing

(MHz) 30 -41 45 55

Channel Bandwidth

(MHz) 5/10 5/10/15/20 1.4/3/5/10/15 3/5/10/15/20

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)

MS Power

(dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)

Sensitivity

(QPSK, BW 10MHz)

(dBm))

-99 -100 -99 -98.5

Item LTE Band38 LTE Band40 LTE Band41 LTE Band66

Freq. Band[MHz]

Uplink/Downlink 2570~2620 2300~2400 2496~2690 1710~1780

2111~2200

ARFCN range UL/DL:37750 ~ 38249 UL/DL:38650 ~ 39649 UL/DL:39650 ~ 41589 UL: 131972~132671

DL: 66436~67335

Tx/Rx spacing

(MHz) 0 0 0 400

Channel Bandwidth

(MHz) 5/10/15/20 5/10/15/20 5/10/15/20 1.4/3/5/10/15/20

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)

MS Power

(dBm) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓) 25.7~-39(↓)

Sensitivity

(QPSK, BW 10MHz)

(dBm)

-98 -98 -98 -98

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.

3. Product Function

Main Function

Item Description

OS Android V8.0

GSM850 / GSM900 / DCS1800 / PCS1900

WCDMA: B1/ B2/ B4/ B5/ B8

LTE: B1/ B2/ B3/ B4/ B5/ B7/ B8/ B12/ B13/ B17/ B20/ B26/ B28/ B38/ B40/ B41/ B66

Battery 3720mAh

Base Band 2.2Ghz Quad + 1.8GHz Quad

Other RF A-GPS, Glonass, BEIDOU, Galileo, BT5.0, USB 2.0 Type-C, WIFI 802.11 a/b/g/n/ac MIMO,NFC,

Camera QUAD Camera

(24MP F1.7+5M F2.2+10M F2.4+8MP F2.4) with LED Flash, 24MP F2.0 (Front)

LCD 6.3", Super AMOLED FHD+, 2220x1080

RAM 6GB

Sensor Accelerometer, Fingerprint Sensor, Gyro Sensor, Geomagnetic Sensor, Proximity Sensor, RGB Light

Sensor

Accessory

Charger: 5V/2A (AFC: 9V/1.67A)

Data cable: 3.2pi, 0.8m(Type C/ USB-A)

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

QRE01

QKP01

QCR205

QFR01

QMO01

QME04

QAR01

QCA01

QMP01

QCR12

QCA02

QCB02

QCK02

QSM01

QVO02

QBC01

QSP01

QVO01

QCK01

QCR12

QME05

QCR12

QME01

QCB01

QME02

QBA01

QME03

※SVC REPAIR TAPE

QRT01, QRT02

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