Samsung GT B7510 Service Manual. Www.s Manuals.com. Manual

User Manual: Smartphone Samsung GT-B7510 - Service manuals and Schematics, Disassembly / Assembly. Free.

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GSM TELEPHONE
GT-B7510

GSM TELEPHONE

CONTENTS
1.

Safety Precautions

Specification

Product Function

Exploded View and Parts list

MAIN Electrical Parts List

Level 1 Repair

Level 2 Repair

Level 3 Repair

9. Reference data
Notice :
All functionality, features, specifications and other
product information provided in this document inclu
ding, but not limited to, the benefits, design, pricing,
components, performance, availability, and capabiliti
-es of the product are subject to change without
notice or obligation. Samsung reserves the right to
make changes to this document and the product
described herein, at anytime, without obligation on
Samsung to provide notification of such change.

This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.

ⓒ Samsung Electronics Co.,Ltd.
2011. 02. Rev.1.0

2. Specification
2-1. GSM General Specification
GSM850
Phase 1

EG SM 900
Phase 2

DCS1800
Phase 1

PCS1 900

WCDMA
2100

WCDMA900

Fr eq.
Band[MHz]
Uplink/Downlin
k

824~ 849
869~ 894

880~ 915
925~ 960

1710~ 1785
1805~ 1880

1850~ 1910
1930~ 1990

1922~ 1977
2112~ 2167

880~ 915
925~ 960

ARF CN r ange

128~ 251

0~1 24 &
975~1 023

512~ 885

512~ 810

T x/Rx spacing

45MHz

95MHz

80MHz

Mo d. Bit r ate/
Bit Period

270. 833kbp 270. 833kbp 270. 833kbp 270. 833kbp
s
s
s
s
3.6 92us
3.6 92us
3.6 92us
3.6 92us

UL:9 612~98 UL:2 712~28
88DL:10 562 63, DL :2937
~10 838
~ 30 88
190 MHz

45MHz

3.84Mcps

Ti m e Sl ot
Pe rio d/Fr am e
Per iod

576. 9us
4.615 ms

Fr ameLeng t Fr ameLeng t
h:
h:
1 0m s
1 0m s
Slotlengt h: Slotlengt h:
0.667 ms
0.667 ms

Modula tion

0.3 GMSK

Q PS KH Q PS Q PS KH Q PS
K
K

MS Po wer

3 3dBm~5 dB 3 3dBm~5 dB 3 0dBm~0 dB 3 0dBm~0 dB
m
m
m
m

24d Bm~50d Bm

Powe r Class

5pcl ~
19p cl

5pcl ~ 19pcl

0pcl ~ 15pcl

3(max+24dB
m)

Sensitivity

- 102dBm

- 100dB m

- 100dBm

-106 .7dBm

TDMA Mu x

Ce ll Radius

35Km

2Km

2-1

Specification

2-2. GSM Tx Power Class
TX Power
control

TX Power
GSM850

level

control

TX Power
EGSM900

control

level

TX Power
DCS1800

level

control

PCS1900

level

33±2 dBm

30±3 dBm

31±2 dBm

28±3 dBm

29±2 dBm

26±3 dBm

27±2 dBm

24±3 dBm

25±2 dBm

22±3 dBm

23±2 dBm

20±3 dBm

21±2 dBm

18±3 dBm

19±2 dBm

16±3 dBm

17±2 dBm

14±3 dBm

15±2 dBm

12±4 dBm

13±2 dBm

10±4 dBm

11±3 dBm

8±4 dBm

9±3dBm

6±4 dBm

7±3 dBm

4±4 dBm

5±3 dBm

2±5 dBm

0±5 dBm

2-2

3. Operation Instruction and Installation
Main Function
-

GoogleAndroid OS 2.2 Froyo
Size: 108.6x66.7x10.65
Band : GSM QUAD BAND GSM850/900/1800/1900 (Release : R99)
BAND : HSDPA 7.2M B1/B8
3 Mega pixel AF Camera, 1/5" CMOS
LCD: 2.8" LQVGA TFT
1350mA standard Battery
3.5pi Earjack/ Earphone
Micro USB/ Power, Data
Wi-Fi 802.11b/g/n
Bluetooth v3.0
USB v2.0 High Speed,
A-GPS
FM w/RDS
input : QWERTY Key, C-Type single TSP
Audio : mp3, ogg, aac, mid, xmf, rtttl, imy, rtx, ota, amr, wav, mxmf
Image : bmp, gif, jpg, png, wbmp, agif
Video : MPEG4, H.263, H.264, 3gp, mp4
B/B: MSM7227 turbo 800M
PMIC: MAX8899
Tranceiver: RTR6285
PAM: SKY77554(2G)
RF7201(3G Dual)
Intenna : Carrier type
LCD: 2.8" LQVGA TFT
MEMORY: 4G+3G

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6. Level 1 Repair
6-1. S/W Download
6-1-1. Pre-requsite for S/W Downloading

• GT-B7510 Mobile Phone
• Battery
• USB cable
• JIG BOX (GH99-36900A)
• RF Test Cable (GH39-00985A)
• JIG Cable (GH39-01339A)
• Adapter (GH99-38251A)
• Downloader Program(Odin Multi Downloader v4.38)
• Binary files
• PC (Windows XP, 7)
★ The settings for download.

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Level 1 Repair

6-1-2. S/W Downloader Program

1. Execute the binary download program, which is "Odin Multi Downloader v4.38".
2. Load the files of OPS, BOOT, PHONE, PDS, CSC from the folder that you saved
binary files. (CLICK the each Naming Button and select the file)
-OPS : OPS file
-BOOT : APBOOT_...
-phone : MODEM_...
-PDA : CODE_...
-CSC : CSC_...
3. Turn On the Mobile with push 'Q' Button to enter the Download mode and check
the Download Logo on LCD

< QWERTY Key Pad >

4. Click the Start button when a port is ready

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Level 1 Repair

5. After downloading finished successfully, there is a "PASS" message.
6. Check the binary version using key streaming, "*#1234#".

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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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1. Safety Precautions
1-1. Repair Precaution
― Repair in Shield Box, during detailed tuning. Take specially care of tuning or test, because
specipicty of cellular phone is sensitive for surrounding interference(RF noise).
― Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by
the influence of magnetic force.
― Surely use a standard screwdriver when you disassemble this product, otherwise screw will be
worn away.
― Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore error of measurement is few.
― Repair after separate Test Pack and Set because for short danger (for example an overcurrent
and furious flames of parts etc) when you repair board in condition of connecting Test Pack and
tuning on.
― Take specially care of soldering, because Land of PCB is small and weak in heat.
― Surely tune on/off while using AC power plug, because a repair of battery charger is dangerous
when tuning ON/OFF PBA and Connector after disassembling charger.
― Don't use as you pleases after change other material than replacement registered on SEC System.
Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

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Safety Precautions

1-2. ESD(Electrostatically Sensitive Devices) Precaution
Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD
(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.
You can prevent from ESD damage by static electricity.
― Remove static electricity remained your body before you touch semiconductor or parts with
semiconductor. There are ways that you touch an earthed place or wear static electricity prevention
string on wrist.
― Use earthed soldering steel when you connect or disconnect ESD.
― Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by static
electricity.
― Don't unpack until you set up ESD on product. Because most of ESD are packed by box and
aluminum plate to have conductive power,they are prevented from static electricity.
― You must maintain electric contact between ESD and place due to be set up until ESD is
connected completely to the proper place or a circuit board.

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4. Exploded View and Parts List
4-1. Cellular phone Exploded View

QME03

QFR01

QKP01

QLC01

QME01

QLB01
QAR01

QCA01

QMP01
QMI01

QSP01
QCK01

QAN02

QVO01
QRF06

QRE01

QCR67

QBA01

QBC00

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Exploded View and Parts List

4-2. Cellular phone Parts list
Design LOC

Description

SEC CODE

QCR67

SCREW-MACHINE

6001-002083

QMI01

MICROPHONE-ASSY-GT-B7510

GH30-00722A

QBA01

INNER BATTERY PACK-EB494358VU,GT-S5830,L

GH43-03504A

QSP01

MODULE-SPK+SIM S/C

GH59-10724A

QME03

TOUCH/PANEL-GT-B7510

GH59-10728A

QMP01

A/S ASSY-PBAMAIN(COMM)GT-B7510

GH82-05631A

QLC01

ELA MODULE-LCD MODULE(GT-B7510)

GH96-05085A

QCA01

ASSY CAMERA-3M AF MODULE(GT-B7510

GH96-05091A

QFR01

ASSY CASE-FRONT

GH98-18418A

QBC00

ASSY COVER-BATT

GH98-18420A

QKP01

ASSY KEYPAD-QWERTY

GH98-18421A

QLB01

ASSY BRACKET-LCD

GH98-18430A

QME01

KEY FPCB-QWERTY KEY(GT-B7510)

GH59-10713A

QAR01

ASSY ETC-RCV&EAR JACK ASSY

GH59-10737A

ASSY CASE-REAR

GH98-18419A

QAN02

INTENNA-GTB7510 MAIN

GH42-02892A

QRF06

PMO COVER-DC USB

GH72-61733A

QCK01

PMO KEY-POWER HOLD

GH72-61734A

QVO01

PMO KEY-VOLUME

GH72-61735A

QRE01

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7. Level 2 Repair
7-1. Disassembly and Assembly Instructions
7-1-1. Disassembly
1

Release Screw 7 Point at REAR

1) Be careful not to make scratch and molding damage!
3

1) Be careful not to make scratch and molding damage!

Disjoint hook on the both side of the REAR

1) Push out REAR to both side.

Disjoint Hook on the bottom of the REAR

Disassemble REAR

1) Detach Power Key FPCB and Cammera Key FPCB.
2) Be careful not to damage to FPCB (Use tweezer!)

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7. Level 2 Repair

1) Detach Earjack/LCD/Qwerty key FPCB.(3point)

Disassemble FPCB.

Disassemble Main PBA from the FRONT Ass'y

1) Hold up Main PBA from left.

Disassemble Module from PBA.

Complete disassembly.

1) Disassemble Cammera Module from PBA.
2) Disassemble SPK Module from PBA.

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7. Level 2 Repair

7-1-1. Assembly
1

Set a PBA and FRONT Ass'y.

Assemble SPK module.

1) Assemble left hook first.
2) Assemble right hook.
3

Assemble Camera module

Assemble PBA on FRONT Ass'y.

1) Assemble fiting to silk line

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7. Level 2 Repair

Assemble PBA on FRONT Ass'y.

Assemble FRONT Ass'y on REAR.

1) Assemble Earjack/LCD/Qwerty key FPCB.(3point).

1) Assemble matching location from earjack of rear

2) Be careful not to damage to FPCB.

upper

Assemble FRONT Ass'y on REAR.

1) Be careful not to make scratch and molding damage!

Drive Screws at 6 points

1) Drive Screws at 6 points with torque
1.1 +/- 0.1 Kgf/㎠

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8. Level 3 Repair
8-1. Block Diagram

8-1

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Level 3 Repair

8-2. PCB Diagrams
8-2-1. Top

8-2

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Level 3 Repair

8-2-2. Bottom

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Level 3 Repair

8-3-1. Power On
If you #1 try and fail,
do #2!!!

"Power On" does not work

NO
Check the VBAT Voltage
@C455 >=3.3V

1.Charge the Battery.
2.If 0V, put more lead
@C455

YES
Is the soldered status of

SW602(ON KEY) O.K?

1.Put more lead each terminal
2.Replace KEY602

YES
NO
Download binary again

Current consumption
>= 100mA?

YES

Check the power
VREG_TCXO_2.85V(C419)
VLCD_2.85V(C412)
VREG_RFRX_2.7V(C423)
VREG_MSMA_2.6V(C411)
VREG_MSMP_2.6V(C422)
VREG_MSME_1.8V(C439)
VREG_PA_2.1V(C431)
VREG_MEMC1_1.2V(C441)
VREG_MSMC2_1.2V(C440)
VUSB_OVP_5V(C442)
VREG_USIM_3.0V(C426)

power management problem.
Put more lead solder
each terminal

inner clock problem.
Put more lead solder
each terminal

YES
Check the OSC400
(C434,434)=32.768KHz?

YES
Check the TCX100
@C112=19.2MHz?

Put more lead soler
each terminal

YES
Replace Board(PBA)

Back to
previous step

Is It power turned on?
YES
END

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Level 3 Repair

C153

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Level 3 Repair

8-6

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Level 3 Repair

8-3-2. SIM part

"Insert SIM card" is displayed on the LCD

Check the connection of
HEA401 to SIM card

insert SIM card again
after check connection HEA401

YES
Check the SIM(SPK)
Module

NO
Replace the SIM(SPK) module

YES

Check the voltage
@ C461 = 3.0V ?

NO
Put more lead each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone accept
the SIM card?
YES
END

8-7

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Level 3 Repair

8-8

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Level 3 Repair

8-3-3. GSM850 RX
CONTINUOUS RX ON
RF INPUT : 190CH
Amplitude : -50dBm
Phone can't catch GSM850 network

NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
PAM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES

Check the connection
GSM850 RX LINE

Put more lead solder
C119, L113,
C118,C120,L112

YES
Check the voltage
PAM100 @ C116≥3.0V ?

Put more lead solder
each terminal

YES

Replace Board(PBA)

Back to
previous step

Does Phone catch
the GSM850 network?
YES
END

8-9

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Level 3 Repair

8-3-4. GSM900 RX
CONTINUOUS RX ON
RF INPUT : 62CH
Amplitude : -50dBm

Phone can't catch GSM900 network

NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES

PAM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES
Check the connection
GSM900 RX LINE

Put more lead solder
C119,L113,L114,L115,L116

YES
Check the voltage
PAM100 @ C116≥3.0V

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone catch
the GSM900 network?
YES
END

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Level 3 Repair

8-3-5. DCS RX
CONTINUOUS RX ON
RF INPUT : 698CH
Amplitude : -50dBm

Phone can't catch DCS network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
PAM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES
NO
Check the connection
DCS RX LINE

Put more lead solder
C129,L120,C131,C135,L118

YES
Check the voltage
PAM100 @ C116≥3.0V ?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone catch
the DCS network?
YES
END

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Level 3 Repair

8-3-6. PCS RX
CONTINUOUS RX ON
RF INPUT : 644CH
Amplitude : -50dBm

Phone can't catch PCS network

NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES

AM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES
NO
Check the connection
PCS RX LINE

Put more lead solder
C129,L120,C138,C140,L121

YES
Check the voltage
PAM100 @ C116≥3.0V ?

Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone catch
the PCS network?
YES
END

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Level 3 Repair

8-3-7. WCDMA Band 8 RX
CONTINUOUS RX ON
RF INPUT : 10700CH
Amplitude : -50dBm

Phone can't catch WCDMA900 network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
PAM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES
NO
Check the connection
WCDMA900 RX LINE

Put more lead solder
C126,L117,C139,C142,L122

YES
Check the voltage
PAM100 @ C116≥3.0V ?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone catch
WCDMA900 network?
YES
END

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Level 3 Repair

8-3-8. WCDMA Band 1 RX
CONTINUOUS RX ON
RF INPUT : 10700CH
Amplitude : -50dBm

Phone can't catch WCDMA2100 network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
PAM100 CHECK
@RFS100 ≥ -65dBm ?

Put more lead solder RFS100,
L110,C113,C115,L107

YES
NO
Check the connection
WCDMA2100 RX LINE

Put more lead solder
L132,C147,L124,L133,L126
C148,C149, C179, L130,
C180,L128,L129

YES
Check the voltage
PAM100 @C116≥3.0V ?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does Phone catch
WCDMA2100 network?
YES
END

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Level 3 Repair

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Level 3 Repair

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Level 3 Repair

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Level 3 Repair

8-3-9. GSM850/900 TX

Can't make a call in GSM network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
Check the connection
R106

Put more lead solder
each terminal

YES
NO
Check the voltage
PAM100 @C116≥3.0V ?

Put more lead solder
each terminal

YES
Check TCXO CLOCK
@C112=19.2MHz?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can Phone make a call
GSM network?
YES
END

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Level 3 Repair

8-3-10. DCS/ PCS TX

Can't make a call in DCS/PCS network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
heck the connection
R105

Put more lead solder
each terminal

YES
NO
Check the voltage
PAM100 @C116≥3.0V ?

Put more lead solder
each terminal

YES
Check TCXO CLOCK
@C112=19.2MHz?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can Phone make a call
DCS/PCS network?
YES
END

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Level 3 Repair

8-3-11. WCDMA BAND 8 TX

Can't make a call in WCDMA900 network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
Check the connection
C162,C127,C128

Put more lead solder
each terminal

YES
NO
Check the connection
L131,C114,C126,L117

Put more lead solder
each terminal

YES
Check TCXO CLOCK
@C112=19.2MHz?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can Phone make a call
WCDMA900 network?
YES
END

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Level 3 Repair

8-3-12. WCDMA BAND 1 TX

Can't make a call in WCDMA2100 network

NO
NORMAL CONDITION
catch the channel?

Put more lead solder
@L105,C114,C189,L111,
L110,C113,C115,L107

YES
NO
Check the connection
C162,L123,C150,C146

Put more lead solder
each terminal

YES
NO
Check the connection
C145,L124,L132,C147

Put more lead solder
each terminal

YES
Check TCXO CLOCK
@C112=19.2MHz?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can Phone make a call
WCDMA2100 network?
YES
END

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Level 3 Repair

8-22

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Level 3 Repair

8-23

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Level 3 Repair

8-3-13. Microphone

Microphone does not work

NO
Is the connection of
MIC500 O.K ?

Put more lead solder
@MIC500

YES
NO
Check voltage
@R531≒1.8V ?

Put more lead solder
@C531,C513

YES
NO
Check the connection
C503, C508

Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does MIC work well?
(ex.voice recording)
YES
END

8-24

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Level 3 Repair

8-25

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Level 3 Repair

8-3-14. Earphone MIC

Earphone MIC does not work

NO
Is the connection of
Earphone MIC O.K ?

1. contact Earphone in Earjack
connector again
2. Replace Earjack connector

YES
NO
Check voltage
@C500≒1.8V ?

Put more lead solder
@R500

YES
NO
Put more lead solder
each terminal

Check the connection
C507,L507

YES
Replace Board(PBA)

Back to
previous step

Does MIC work well?
(ex.voice recording)
YES
END

8-26

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Level 3 Repair

VLCD_2.85V

VREG_MSMP_2.6V

R517

1
3
5
7
9
11

L504
L505
R523

L506
L507
R527
R528

ZD508

13
15

C526
L509

C523

ZD514

C527

ZD513

C529

ZD501

C528

ZD511

TP_GND

1
3
5
7
9
11
13
15

8-27

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2
4
6
8
10
12
14
16

17 NC
18 NC
19 NC
20 NC

R521
R522

ZD502

EAR_ADC_3.5
RCV_P
RCV_N

HEA500

C501

TP_FM_IN_2
TP_EAR_L
TP_EAR_R
TP_DET
TP_MIC
R524

ZD506

FM_ANT
EAR_SPK_L
EAR_SPK_R
JACK_INT_N
EAR_MIC_P

2
4
6
8
10
12
14
16

R520

PROXI_INT
I2C_SCL
I2C_SDA

Level 3 Repair

8-3-15. Receiver

There is no sound from Receiver(call)

NO
1. contact receiver again
2. Replace receiver

Is the connection of
Receiver(HEA500) O.K ?
YES
NO
Check the connection
R527,R528

Put more lead solder
@R527,R528

YES
Replace Board(PBA)

Back to
previous step

Can hear sound
from Receiver?
YES
END

8-28

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Level 3 Repair

VLCD_2.85V

VREG_MSMP_2.6V

R517

1
3
5
7
9
11

L504
L505
R523

L506
L507
R527
R528

C526
L509

C523

ZD514

C527

ZD513

C529

ZD501

C528

ZD511

TP_GND

2
4
6
8
10
12
14
16

ZD508

13
15

1
3
5
7
9
11
13
15

17 NC
18 NC
19 NC
20 NC

R521
R522

TP_EAR_L
TP_EAR_R
TP_DET
TP_MIC
R524

ZD502

EAR_ADC_3.5
RCV_P
RCV_N

HEA500

C501

TP_FM_IN_2

ZD506

FM_ANT
EAR_SPK_L
EAR_SPK_R
JACK_INT_N
EAR_MIC_P

8-29

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2
4
6
8
10
12
14
16

R520

PROXI_INT
I2C_SCL
I2C_SDA

Level 3 Repair

8-3-16. Speaker, Motor
There is no sound from Speaker(play songs)

Is the connection of
Speaker Module O.K ?

NO
1. contact Speaker Module
again

YES
Replace Speaker Module

Still no sound from
Speaker?

Replace Board(PBA)

Back to
previous step

YES

Is there problem
at Speaker Module?
NO
END

There is no vibration from vibration motor

Is the connection of
motor O.K?

1. Check motor
contact(MOT500/501)
2. Check if motor lied on the
'rear' appropriately

YES

Is the
voltage(@C505,C506) 3.3V?

YES
Replace vibration motor

NO
YES
Replace Board(PBA)

Is there problem
at vibration?
NO
END

8-30

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Level 3 Repair

8-31

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Level 3 Repair

8-3-17. Camera
CASE 1
Occur 'Camera fail' pop-up

NO
1. contact Camera again
2. Replace Camera

Is the connection of
Camera O.K ?
YES
NO
Check the connection
C602,C603,C604,C600

Put more lead solder
each terminal

YES

Replace Board(PBA)

Back to
previous step

Can enter camera
mode?
YES
END

CASE 2
unusual color when phone camera mode

NO
1. contact Camera again
2. Replace Camera

Is the connection of
Camera O.K ?
YES
NO
Check the connection
F600, F601, F609

Put more lead solder
each terminal

YES

Replace Board(PBA)

Back to
previous step

when camera mode,
normal color?
YES
END

8-32

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Level 3 Repair

8-33

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Level 3 Repair

8-3-18. FM radio

FM Radio does not work well

NO
1. contact earphone again
2. Replace earphone

Is the connection of
earphone O.K ?
YES
NO
Check the connection
fromTP_FM_IN_2 to L206

Put more lead solder
each terminal

YES
NO
Check the voltage
@C202=1.2V?

Check the connection
L509

Put more lead solder
each terminal

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can you turn on
and search channel?
YES
END

8-34

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Level 3 Repair

VLCD_2.85V

VREG_MSMP_2.6V

R517

1
3
5
7
9
11

L504
L505
R523

L506
L507
R527
R528

ZD508

13
15

C526
L509

C523

ZD514

C527

ZD513

C529

ZD501

C528

ZD511

TP_GND

1
3
5
7
9
11
13
15

8-35

SAMSUNG Proprietary-Contents may change without notice
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2
4
6
8
10
12
14
16

17 NC
18 NC
19 NC
20 NC

R521
R522

ZD502

EAR_ADC_3.5
RCV_P
RCV_N

HEA500

C501

TP_FM_IN_2
TP_EAR_L
TP_EAR_R
TP_DET
TP_MIC
R524

ZD506

FM_ANT
EAR_SPK_L
EAR_SPK_R
JACK_INT_N
EAR_MIC_P

2
4
6
8
10
12
14
16

R520

PROXI_INT
I2C_SCL
I2C_SDA

Level 3 Repair

8-36

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Level 3 Repair

8-3-19. Bluetooth

Can't activate or search any Bluetooth devices

NO
Check the connection
C239,L211,C214

1. Put more lead solder
each terminal
2. Replace BT_ANT

YES
NO
Check the connection
C225

Put more lead solder
each terminal

YES
NO
@ C218=1.2V?
@ C216=2.6V?

Put more lead solder
each terminal

YES

Replace Board(PBA)

Back to
previous step

Can it Bluetooth
activating & searching?
YES
END

8-37

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Level 3 Repair

8-38

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Level 3 Repair

8-3-20. GPS

GPS does not work

NO
1. Put more lead solder
2. Replace L205

Is the soldered status of
L205 O.K?
YES
NO
Is the soldered status of
C232,C231,L207
C230,C229,C241

Put more lead solder
each terminal

YES
NO
Check the voltage
@C224=2.7V?
@C175=2.7V

Put more lead solder
each terminal

YES

Replace Board(PBA)

Back to
previous step

Does GPS work well?
YES
END

8-39

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Level 3 Repair

8-40

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Level 3 Repair

8-3-21. Wi-Fi Rx/ Tx

Wi-Fi does not work

NO
Check the connection
C239,L211,C214

1. Put more lead solder
each terminal
2. Replace BT_ANT

YES

Check the Voltage
@C211=3.3V?
@C206=1.8V?

NO
Put more lead solder
each terminal

YES
Check TCXO CLOCK
@C208,C209=26MHz?

NO
Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Can it wifi
activation & searching?
YES
END

8-41

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Level 3 Repair

8-42

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Level 3 Repair

8-3-22. LCD

LCD does not work

NO
1. contact LCD again
2. Replace LCD

Is the connection of LCD
O.K ?
YES
NO
Check the connection
C412

Put more lead solder
each terminal

YES
Replace Board(PBA)

Back to
previous step

Does LCD work well?

YES
END

8-43

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Level 3 Repair

8-44

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Level 3 Repair

8-4. Schematic Diagram
- NC Point

U400

8-45

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Level 3 Repair

UME300

8-46

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www.s-manuals.com

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