Samsung SM-A320F User manual

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This material is a property of Samsung Electronics Co., Ltd. Any unauthorized use of this material can be punished under
applicable International and/or domestic law.
Confidential
New Product SVC Guide
[ SM-A320F ]
Instructor : Hweechul Shin

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Notice
This guide is intended solely for the Samsung Electronics internal training and may contain
trade secret, industrial technology or privileged and confidential information otherwise
protected under applicable law including the Unfair Competition Prevention and Trade Secret
Protection Act. Any unauthorized dissemination, distribution, copying of use of the information
contained in this guide is strictly prohibited and subject to legal action.
All functionality, features, specifications and other product information provided in this
document including, but not limited to, the benefits, design, pricing, components, performance,
availability, and capabilities of the product are subject to change without notice or obligation.
Samsung reserves the right to make changes to this guide and the product described herein,
at anytime, without obligation on Samsung Electronics to provide notification of such change.

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Contents
1. Specification of SM-A320F (Galaxy A3 2017)
2. H/W
2-1. Disassembly & Assembly
2-2. Parts Diagram (Module & ICs)
2-3. Troubleshooting
2-4. R/F Calibration
3. S/W
3-1. S/W Download
3-2. Key Features
4. SVC Technical Information

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Specification
Item Spec.
AP Chipset Vendor Cores Speed
LSI Octa-core 1.6 Ghz
Memory RAM Flash
2GB 16GB
Display Size Resolution Type
4.7 inch 720 X 1280, HD Super AMOLED
CAMERA Resolution (Main/Front) Auto Focus Video (Main)
13MP / 8MP Contrast AF 1080p @ 60fps
Network 2G/3G LTE
Support 800/850/900/1800/1900/2100/2600 Cat6 (50Mbps UL / 300Mbps
DL)
Sensors Accelerometer, Barometer, Fingerprint, Gyro, Geomagnetic, Hall, RGB Light, Proximity
New :
Connectivity Bluetooth 4.2, WIFI a/b/g/n/ac, NFC, USB2.0, USB C-type, MST
Battery & GPS 2,350mAh A-GPS & GLONASS
Micro SD & OS Up to 256GB Android V6.0 (MM)
Remark Back glass Type Water Resistance : IP68

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Disassembly & Reassembly

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Disassembly & Reassembly
Important management points
Disassembly Reassembly
O-ring(GH81-14271A)
Heating condition of back glass disassembly
- SOC 68%↓: 70℃, 10~20min
- SOC 68%↑: 60℃, 10~20min

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Parts Layout
Rear Case

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Parts Layout
PBA (Top side)
LED5000
Flash IC
U3004 (in Shieldcan)
BT/WIFI IC
U6009
Compass Sensor
HDC7002
OCTA Connector
U1005 (in Shieldcan)
FEMid
U6008
Sensor HUB
F1004 (in Shieldcan)
B28 Duplex
HDC5000
Volume key Connector
U7008
WIFI 5G IC
HDC7000
Battery Connector
U5004 (in Shieldcan)
PMIC
U3003
MST Driver IC
OSC50000 (in Shieldcan)
32kHz
U1007 (in Shieldcan)
APT module
U1009 (in Shieldcan)
GSM Quad MMMB PA
HDC7001
SUB Touch Connector
HDC903
Finger Sensor Connector
HDC6000
Proxy/RGB Connector
MIC6000
Sub MIC
U3001
GPS AMP
U6006
Pressure Sensor
ANT6002/6003
Speaker Contact
ANT3000/3001
MST ANT Contact
U7006
VT Camera Connector
ANT3002/3003
NFC ANT Contact
U7007
6 Axis Sensor(Gyro & ACC)
U3008
MST Driver IC
ANT2002
LB Sub ANT contact
ANT5000/5003
PowerKey Contact
U5000
Flash Driver IC
U3008
MST Driver IC
HDC6002
Earjack Connector
MIC6001
Main MIC

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Parts Layout
U7001
HD OCTA DC-DC
SIM5000
SD_SIM connector
ANT6001/6002
RCV contact
U5003
IF PMIC
UCP400
AP_CP with POP Memory
OSC3000
26MHz
HDC7004
13M camera Connector
ANT5005/5006
Motor contact
U5002
OVP
U6005
Hall IC
ANT3007
WIFI 5G Antenna contact
U2002
RFIC
U1008
HighBand PA
UME5000
16GB eMMC
U7002
Sub Touch UC
ANT2000
LB Sub ANT contact
F2005
GPS SAW filter
U2001
Diversity LNA
U3006
FM IC
F2003
Diplexer
IFC5001
USB Connector
ANT2001
MB_HB Sub ANT contact)
PBA (Bottom side)

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Troubleshooting
No Power
Step Check point Result value Defect point
1 Confirm the defect symptom - -
2 * * Analyse reasons of No-Power using the
Power & Current test jig Power test mode.
PASS Battery, Battery terminal,
Physical Key
Leakage Current fail Go to the step 2.1
Power On Current fail Go to the step 3
2.1 Check the Resistance between JIG Power V_Battery / VPH_PWR/ V_BAT and Ground.
(C701,C805)
Normal (Over dozens of KΩ)Go to the step 5
Abnormal Capacitors for ESD protection
3 It’s possible to enter the download mode? Yes Go to the step 3.1
No Go to the step4
3.1 Check if it’s rooted. Rooted OOW
Normal S/W update
4 Try to do the boot recovery. Pass Go to the step 3
Fail Go to the step 5
5 Check the voltage of C5023(=IFPMIC Output) C5023 = Power supply voltage
Go to the step 6
If not the correct value Replace the U5003(=IFPMIC)
6 Check the voltage of C5006(=PMIC Output) C5006 = 1.8V Go to the step 7
If not the correct value Replace the U5004(=PMIC)
** Usage guide of the Power & Current test jig has been uploaded at GSPN. (Power & Current Tester_Rev4_150716.pdf)

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Troubleshooting
No Power (cont’)
Step Check point Result value Defect point
7 Check the frequency of TCX2000 26MHz Main chip (UCP400)
If not the correct value X-TAL (TCX2000)
Step6
U5004 C5006
=1.8V
TCX2000
=26Mhz
Step5
U5003
C5023 = 3.8V
Step7
UCP
400

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Troubleshooting
Power on but no operation (freezing)
Step Check point Result value Defect point
1 Confirm the defect symptom - -
2 * * Analyse reasons of No-Power using the
Power & Current test jig.
PASS Go to the step 1
Leakage Current fail Refer to the No-power Troubleshooting
Power On Current fail Go to the step 2.1
2.1 Try to do the boot recovery. Solved Boot area in S/W
Not solved Go to the step 7
3 It’s possible to enter the download mode? Yes Go to the step 3.1
No Go to the step 4
3.1 Check if it’s rooted. Rooted OOW
Normal Go to the step 4
4 Enter the safe mode, and check if powers up. Solved 3rd party Apps.
Not solved Go to the step 5
5 Perform full reset. Solved S/W or 3rd party Apps
Not solved Go to the step 6
6 Upgrade software to the latest version. Solved S/W
Not solved Go to the step 7
7 Check the voltage of C5029, C5026 (eMMC) C5029 = 1.8V
C5026 =2.85V PBA
If not the correct value Replace the eMCP(eMMC)
** Usage guide of the Power & Current test jig has been uploaded at GSPN. (Power & Current Tester_Rev4_150716.pdf)

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Troubleshooting
No Charging
Step Check point Result value Defect point
1 Confirm the defect symptom - -
2 Replace a battery. Solved Go to the step 2.1
Not solved Go to the step 3
2.1 Charge the customer battery during
5min at least. Solved Totally discharged battery
Not solved Battery
3
** Analyse reasons of No-Charging using the
Power & Current test jig Charging test mode
with no defect charger.
(Test battery voltage should be below 85%)
PASS Go to the step 4
FAIL Go to the step 5
4 ** Test a customer’s charger using the Power &
Current test jig TA test mode. PASS Go to the step 1
FAIL Customer’s Charger
5 Disassemble and check I/F connector visually
Dust Clean I/F connector
Damage Replace I/F connector
Normal Go to the step 6
6 Check the voltage of C5085 C5085 = 5V Go to the step 7
If not the correct value may not connected charger
7 Check the voltage of C5052 C5052= 5V Replace the U5002
If not the correct value Replace the U5003
** Usage guide of the Power & Current test jig has been uploaded at GSPN. (Power & Current Tester_Rev4_150716.pdf)

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Troubleshooting
Step 5 Step 6
C5085=5V
C5052 = 5V
U5002 U5003

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Troubleshooting
Call Problem (with RF equipment)
Step Check point Result value Defect point
1 Confirm the defect symptom - -
2 RF radiation test Pass Network or Settings
Fail Go to the next step
3 RF calibration Pass Go to the step 4
Fail Go to the step 5
4 RF radiation test
Pass Repaired
Fail Except PBA (Coaxial cable,Antenna,
Shielding condition)
5 A type of failure
TX
2G MMMB, Main Femid
TRANCEIVER
3G MMMB, Main Femid
TRANCEIVER
LTE MMMB or,B7/B40 PA
Main FEM, TRANCEIVER
RX
2G Main Femid , TRANCEIVER
3G Main Femid , TRANCEIVER
LTE Main Femid , TRANCEIVER

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Troubleshooting
Call Problem
Step5
U1005
Main FEMID
U2002
Transceiver
U1009
MMMB
U1008
High Band PA

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Troubleshooting
Call Problem (without RF equipment)
Step Check point Result value Defect point
1 Confirm the defect symptom - -
2 Check the settings
(airplane mode, Mobile networks) Abnormal Settings
Normal Go to the next step
3 Check the debug screen *#0011#
(Compare to normal device) Abnormal Go to the next step
Normal Network
4 Check the RF parts except PBA.
(Coaxial cable, Antenna, Shielding condition, etc..)
Broken, dust, corrosion RF parts
Loose fitting Connection
Normal Go to the next step
5
Check the status visually(crack, missing,
Corrosion..etc) of RF components.
(compare to normal PBA)
U2002 Transceiver
U1005 Main FEMID
U1009 MMMB PA
U1008 High Band PA
Abnormal RF components.
Normal CP(Call Processor) (UCP400)
CP PMIC(U5004)

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Troubleshooting
Call Problem
Step2,3 Step4
Step4
Main
ANTENNA contact
Step5
CHECK SETTINGS
DEBUG SCREEN STATUS
Same value compare to
normal device.
Diversity
ANTENNA contact
U1005
Main
FEMID
U2002
Transceiver
U1009
MMMB
U1008
High Band
PA

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Troubleshooting
Sound Problem
Step. Check point Result value Defect point
1 Confirm the defect symptom. - -
2 *#0*# → speaker No sound Go to the next step
Normal S/W or Settings
3 Replace the speaker Solved speaker
Not solved Go to the next step
4 Activate the speaker path.
(*#0*# → Speaker) - -
5
Check the signal at two of speaker contacts.
(Using oscilloscope)
Notice : It should be measured when the
speaker path is activated on.
Same signal compared with a
good PBA Go to step 6
No signal Replace U6001
(Audio amp)
6 Check if the SPK is contacted toANT6002,
ANT6003 well, and assemble the phone again.
Solved Assembly error
Not solved Go to step 3

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Troubleshooting
Sound Problem
Step3
Assy case-rear
Step6
Speaker contacts
U6001
Audio AMP
Step7
ANT6002/6003
Speaker contacts