Samsung B7722 Disassembly and Assembly Instructions

Level

8.

Block Diagram

8-1.

ONKEY

ONKEY

ONKEY

ONKEY

CHARGER

CHARGER

CHARGER

CHARGER

LCD

LCD

LCD

LCD

3.2”WQVGA

3.2”WQVGA

3.2”WQVGA

3.2”WQVGA
WTSP

WTSP

WTSP

WTSP

HapticMotor

HapticMotor

Repair

3

Master Memory

Master Memory

Master Memory

Master Memory

4G x 1G

4G x 1G

4G x 1G

4G x 1G

NAND / SDRAM

NAND / SDRAM

NAND / SDRAM

NAND / SDRAM

Keypad

Keypad

Keypad

Keypad

SIM

SIM

SIM

SIM

T-Flash

T-Flash

T-Flash

T-Flash

Master PMU

Master PMU

Master PMU

Master PMU

(PCF50623)

(PCF50617)

(PCF50623)

(PCF50617)

Mot/Touch IC

Mot/Touch IC

Mot/Touch IC

Mot/Touch IC

(ISA2000)

(ISA2000)

Acc Sensor

Acc Sensor

KR3DF

KR3DM

Camera

Camera

5M AF

5M AF

CIF CAM

CIF CAM

SWITCH

SWITCH

SWITCH

SWITCH

common I2C

common I2C

common I2C

common I2C

common I2C

common I2C

Master RF

Master RF

Master RF

Master RF

(HSDPA)

(HSDPA)

(HSDPA)

(HSDPA)

AERO4229

AERO4229

AERO4229

AERO4229

Master B/B

Master B/B

Master B/B

Master B/B

(PNX6709)

(PNX6709)

(PNX6709)

(PNX6709)

UART2

UART2
UART2

UART2

GPIO

GPIO
GPIO

GPIO

EXTINT

EXTINT
EXTINT

EXTINT

GPIO

GPIO
GPIO

GPIO

EXTINT

EXTINT
EXTINT

EXTINT

EAR

EAR

Ana In

RCV

RCV
SPK
EAR

USB

MIC1 MIC2 UART1

MIC1 MIC2 UART1

USB

SPI2

SPI2

SPI2

SPI2

SPI1

SPI1

SPI1

SPI1

Data Communication

Data Communication

Interrupt for data

Interrupt for data

Interrupt for debugging

Interrupt for debugging

FM

FM

TEA5991

TEA5991

WIFI(SWL-10)

WIFI(SWL-10)

WIFI(SWL-10)

WIFI(SWL-10)

BT(BC6)

BT(BC6)

BT(BC6)

BT(BC6)

PCM

PCM

PCM

PCM

SWITCH

SWITCH

SWITCH

SWITCH

Audio

Audio

Amp

Amp

SWITC

SWITCH

SWITCH

Slave RF

Slave RF

Slave RF

Slave RF

QS520

QS520

QS520

QS520

Slave B/B

Slave B/B

Slave B/B

Slave B/B

(PNX6608)

(PNX6608)

(PNX6608)

(PNX6608)

UART2

UART2
UART2

UART2

EXTINT

EXTINT
EXTINT

EXTINT

GPIO

GPIO
GPIO

GPIO

EXTINT

EXTINT
EXTINT

EXTINT

GPIO

GPIO
GPIO

GPIO

EAR

HFR_S

USB

USB
UART1 MIC2 MIC1

UART1 MIC2 MIC1

SWITCH

SWITCH

SWITCH

SWITCH

Slave Memory

Slave Memory

Slave Memory

Slave Memory

128Mx64M

128Mx64M

128Mx64M

128Mx64M

NOR/

NOR/

NOR/

NOR/

UtRAM

UtRAM

UtRAM

UtRAM

SIM

SIM

SIM

SIM

SLAVEON (mater)

SLAVEON (mater)

SLAVEON (mater)

SLAVEON (mater)

Master

Master

Slave

Slave

SWITCH

SWITCH

SWITCH

SWITCH

SWITCH

SWITCH

USB UART EARSPK

USB UART EARSPK
EARMIC

EARMIC

Micro usbswitch

Micro usbswitch

Micro usb con

Micro usb con

8-1

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Common

Common

Level3Repair

PCB Diagrams

8-2.

8-2-1.

Top

8-2

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8-2-1.

Bottom

8-3

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Flow Chart of Troubleshooting

8-3.

presetting methods for checking TP

※

GND&TP(exp. Vbatt=C108, C109, C212,C308)using Oscilloscope

-

look over the coming out signal.

-

Oscilloscope

←

8-4

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Multi-meter

←

Level3Repair

EX) to look up the TP, shunt Cap.

-

SAMSUNG Proprietary-Contents may change without notice

Checking the TP(test point) using Multi-meter

←

if checking the GND, you can listen"beep"

-

if checking the Signal, you can't listen it.

8-5

Level3Repair

8-3-1.

Power On

Power On'does not work

'

Check the Battery Voltage

is more than
C300, C311,C501)

(

VDD_IO_LOW_1.8V

C213,

(

Check the Clock at

OSC300(CLK32K)

C332, C333)

(

Yes

Yes

=1.8V ?

214)

Yes

3.3V

=32

KHZ

No

No

No

Change the Battery

Because of batt. power low)

(

Check the Main Chip related to

VDD_IO_LOW_1.8V

to look over the Chip damage)

(

Check the Main Chip

to lookover the Chip damage)

(

C332, C333/look over the waverform

(TP:

using the oscilloscope)

Yes

VDD_CORE_2

L301, C328, C330)

(

Yes

END

=1.2

V?

No

Resolder L301, C328, C330

to confirm coming out power V_core)

(

8-6

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8-7

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8-8

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8-3-2.

Initial

Initial Failure

Yes

UCP200 pin E7(RSTON)

="H(>2.4V)"?

C227)

(

Yes

Slaveon signal is changed

-> L→H

in boot sequence

R723&R719

(

)

No

H

No

Replace UCP200, must be"H"

Replace Q700 and check once again

Yes

Check the16bit data signal

memory CE(TP214,TP215)

&

Yes

END

8-9

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8-10

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8-11

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8-3-3.

Charging Part

Check VBUS voltage

(

Abnormal charging part

Yes

TP:C438,1pin of IFC400)

U404 pin

15 (

>4.9V

TP:C435)

(

>4.9V

Yes

OUT)

Yes

No

(

No

be possible that it's not soldering well)

(

Resolder IFC400, C438

be possible that it's not soldering well)

Resolder U404

U300 pin

>4.9V

TP:C325)

(

38(

END

VCHG)

Yes

No

Resolder C325, C435

and

Replace U300 usingaHeatgun

8-12

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8-13

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8-14

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8-3-4.

Sim Part

Phone can't access SIM Card

Yes

SIM

or R307 and R308

Check SIMClk Signal on

pin3 of SIM

method:wiring pin3and

(

checking its waveform using an

SIM301 pin

300,

"H=3.0V" ?

Yes

After Power ON,

SIM301 inafew

300,

second

oscilloscope)

1

No

No

Resolder R300, U305

insert SIM card&access it,

then must be"H=3.0V"

Resolder or Replace SIM

connector.(Because of not soldering well)

300,

SIM301

Yes

After SIM card insert,

SIM

method:wiring pin3and check

(

SIM301 pin2(SIM_RST)

300,

= "H=3.0V"?

its waveform using an

oscilloscope) oscilloscope)

Yes

Check the SIM Card

look over if it get damaged.)

(

Yes

END

No

Confirm an another PBA

8-15

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8-16

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8-17

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8-3-5.

Microphone Part

Microphone does not work

U300 pin U28

Mic_bias="2.15V"?

TP:C313)

(

Check the MIC Connection
look over schematics about

(

schemetics.)

Yes

Yes

Yes

No

No

Replace U300 usingaHeatgun

Because of not soldering well

(

Resolder C535, ZD502, U402, C417, C451

C448, C416, R410, U401, R402, L401, L402

not work if those is not connected.)

(

)

Check the MIC sample.

it be possible the problem

(

things)

Yes

END

No

Replace an another MIC

because of being possible the problem)

(

8-18

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8-19

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8-20

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8-3-6.

Speaker Part

produces signal(voltage)

(

checking an waveform using

Speaker does not work

Yes

Check L404 and L405

Wiring the SPK N/P and

oscilloscope)

Yes

Is Speaker working?

Listening through the

(

speaker)

Yes

No

Resolder L404 AND L405, ZD402, ZD403

be possible because of soldering not well)

(

No

Change Speaker ASS'Y

be possible of SPK Problems

(

or not inserting it right.)

Does not work spkaer

mode and receiver mode?

(*#0*#

select the Call ringtone)

check receiver

→

and speaker)

Yes

END

No

Resolder or Replace UCP200, U400

be possible of soldering not well or being

(

UCP

bad sample)

a

8-21

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8-22

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8-3-7.

Key Data Input

Check Initial Operation

When you pushed all of the

Key, does the key have

Yes

tension?

Yes

No

(#1 :

#3

whether be sunken

look over the Dome location

#2 :

whether be out of line

look over TACT switch was broken

or be short)

Change Domesheet

look over the Dome situation

All of the key doesn't work

except POWER ON KEY

Yes

END

No

?

because of be possible for FPCB to get damaged)

Replace the FPCB and diode

over the insturctions again

(

8-23

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8-24

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8-3-8.

Bluetooth

8-25

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Bluetooth does not work

Yes

U101 pin

4dBm

Check U101 pin

≥1.8V

pin

44

pin4 ≥ 3.3V

Check U101 pin6

MHz

26

15

≥

Yes

13,24,42,51

≥2.6V

Yes

?

Yes

No

No

No

Resolder or Replace U101

Resolder U101 and U300

Resolder or replace C122, U100

Check

& Resolder U102

Yes

END

8-26

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8-27

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8-28

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8-3-9.

WiFi

WiFi does not work

U101 pin

10dBm

Check U101 pin

≥1.8V

pin

44

pin 32,33 ≥ 3.3V

pin 40 ≥ 1.2V

Yes

15

≥

Yes

13,24,42,51

≥2.6V

Yes

No

No

Resolder or Replace U101

Resolder U101 and U300

Check OSC100 pin1 or

MHz

40

?

Yes

Check

& Resolder U103

Yes

END

3

No

Resolder or Replace OSC100

8-29

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8-30

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8-31

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presetting

※

Rx setting)

(

Tx setting)

(

8960

Active Cell

1.

select GSM or GPRS

:

Connetion Type

2.

select Auto

:

BCH Parameter

3.

select measuring band(DCS or EGSM)

:

Cell power

4.

dBm

:-60

After setting

※

8960 (

EGSM/DCS

)

After setting, prepare the call setup Display

1.

Using an Originate Call, makeacall.

2.

Confirm the display"connected"

3.

start the measuring

4.

8-32

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※

8960 &

spectrum analyzer

down&up at picture)

(

spectrum analyzer:testing method=the way using an Osciliscope

-

-8960:

connect using RF Cable between

8960 &

RF Connector in board.

Master RF Connector

Slave RF Connector

8-33

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Level3Repair

8-3-10.

Master GSM900 Receiver

RX ON

Cell Power

Check C159

Soldering

Check FEM100

Soldering

Check

L116,L117,C172

Soldering

:-60

Yes

Yes

Yes

dBm

No

No

No

Resolder C159

Resolder FEM100

Resolder L116,L117,C172

Yes

Check&Resolder

U100

Yes

END

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-34

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Level3Repair

8-3-11.

Master DCS Receiver

RX ON

Cell Power

Check C159

Soldering

Check FEM100

Soldering

Check

L118,

Soldering

L

119,

:-60

Yes

Yes

Yes

L120

dBm

No

No

No

Resolder C159

Resolder FEM100

Resolder L118,L119,L120

Yes

Check&Resolder

U100

Yes

END

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-35

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Level3Repair

8-3-12.

Master

3G

Receiver

RX ON

Cell Power

:-60

dBm

Yes

FEM100 sensitivity

-105

Yes

Check&Resolder

C131,L101,L123,L103,

DUF100,C105,L109,L107

≥

No

Check&Resolder C159

END

Yes

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-36

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RFSM1
RFSM2
RFSM3

Level3Repair

RFS100

G

C

G

A

3

4

1

2

C136

C137

9

PCN|PCS_TX

11

GSM850|EGSM_TX

4

CTRL1

5

CTRL2

6

CTRL3

L113

2

FEM100

1

C159

RF2G_VDD_RF2

L102

C163

7

T

D

N

D

A

V

16

PCN_RX

17

PCN_RX

18

PCS_RX

19

PCS_RX

12

GSM850_RX

13

GSM850_RX

14

EGSM_RX

15

EGSM_RX

20

WCDMA

22

WCDMA

D

D

D

D

D

D

D

N

N

N

N

N

N

N

G

G

G

G

G

G

G

1

0

8

4

3

3

2

1

2

2

L118

L120

C179

C180

L115

L116

L119

L121

L114

C169

C172

L117

4
M
S
F
R

B8_TRX

B1_TRX

L112

DPCS_TX

GSM_TX

R114
R115
R116

8-37

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Level3Repair

8-38

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8-3-13.

Master GSM Transmitter

TX ON(5Level)

Yes

FEM100 Pin

PAM102 pin

30

30

dBm

No

dBm

16

2

≥

≥

yes

Yes

Resolder C159

Resolder L104, FEM100

No

PAM102 pin

≥

-4

dBm

6

No

Check&Resolder

U100

Yes

END

Yes

Resolder PAM102,C149

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

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Level3Repair

8-3-14.

Master DCS Transmitter

TX ON(0Level)

Yes

FEM100 Pin

PAM102 pin

28

28

dBm

No

dBm

16

19≥

≥

yes

Yes

Resolder C159

Resolder L111, FEM100

No

PAM100 pin

≥

-4

dBm

4

No

Check&Resolder

U100

Yes

END

Yes

Resolder PAM102,C110

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-40

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Level3Repair

8-3-15.

Master

Transmitter

3G

TX ON(Target Power24dBm

Yes

FEM100 Pin

20

dBm

2

≥

No

PAM100 pin

20

dBm

9

≥

)

yes

Yes

Resolder C159

Resolder DUF100,C131,C103

No

Check&Resolder

PAM100, C130, U100

Yes

END

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-41

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Level3Repair

DCS_PA

GSM_PA

PON_PA

BAND_SEL

VRAMP

DPCS_TX

GSM_TX

R114

RFSM1

R115

RFSM2

R116

RFSM3

C155

C145

RFS100

G

G

3

4

L112

L110

C

A

1

2

C137

9

PCN|PCS_TX

11

GSM850|EGSM_TX

4

CTRL1

5

CTRL2

6

CTRL3

C153

C159

L113

2

FEM100

1

VBAT

C129

C146

C154

C141

26

4

DCS|PCS_IN

6

GSM_IN GSM_OUT

23

TX_EN

22

BS

24

VRAMP

25

VLOGIC

TP100

G

G

G

G

G

G

5

3

1

9

7

8

2

VBATT

PAM102

G

G

G

G

G

G

G

G

G

G

2

0

1

3

1

1

1

1

G

4

5

7

8

0

1

1

1

1

1

2

2

7
2

G

G

8
2

DCS|PCS_OUT

G

G

G

9

1

0

2

3

3

19

16

38

G

37

G

36

G

35

G

G

G

G

2

3

4

3

3

3

L111

C147

L104

C152

DPCS_TX

C148

GSM_TX

C151

VBAT

C136

RF2G_VDD_RF2

L102

PCN_RX
PCN_RX
PCS_RX

PCS_RX
GSM850_RX
GSM850_RX

EGSM_RX
EGSM_RX

WCDMA

WCDMA

D
N
G

4
2

C163

16
17
18

19
12
13

14
15

20

22

L118

L120

C179

C180

L115

L116

L117

B8_TRX

B1_TRX

L119

L121

L114

C169

B1_PA_IN

3G_BYPASS

3G_RAMP

3G_PA_EN1

C172

C118

7

T

D

N

D

A

V

D

D

D

D

D

D

N

N

N

N

N

N

G

G

G

G

G

G

3

3

0

8

1

2

1

2

4
M
S
F
R

PAM100

1

29

3

4

5

C119

VCC1 VCC2

RFIN

RFOUT

ISO

VBP

GND

VMODE

CPL

VEN

D
N
G

1
1

10

B1_PA_OUT

8

7

6

R101

R103

C114

GSM_PA

3_TXOUTBAND1+

3_TXOUTBAND1-

3_TXOUTBAND2+

3_TXOUTBAND2-

3_TXOUTBAND5+

3_TXOUTBAND5-

D

D

N

N

G

G

8

7

L

L

3_DCDCOUT

3_DCDCTEST

3_DCDCSENSE

3_LDOINMAIN

3_LDOINPA

3_LDOINSYN

3_RXINBAND1

3_RXINBAND2

3_RXINBAND5

3_RXI+

3_RXI-

3_RXQ+

3_RXQ-

3_TXI+

3_TXI-

3_TXQ+

3_TXQ-

3_SPICLK

3_SPIDATA

3_SPIEN

3_SYSCLKEN

3_SYSCLKOUT

3_TCXOIN

3_RESETN

3_BGMONITOR

3_TESTPIN1

3_TESTPIN2

D

D

N

N

G

G

1

0

9

1

1

L

L

L

RF3G_VDD_RF4

M1

M6

M8

H3

M7

G3

G13

E13

F13

A1

TP107

3G_RX_I_P

B1

3G_RX_I_N

D1

TP108

3G_RX_Q_P

C1

3G_RX_Q_N

N7

TP109

3G_TX_I_P

N6

3G_TX_I_N

N4

TP110

3G_TX_Q_P

N5

3G_TX_Q_N

N13

N12

L13

M13

J13

K13

D10

TP111

3G_RF_SPICLK

E10

TP112

3G_RF_SPIDATA

F10

TP113

3G_RF_SPIEN

B10

A11

F1

3G_REF_CLK

G10

3G_RESETn

H10

B3

F2

D
N
G

C130

L108

C142

C143

1

L109C105

RX

B1_PA_IN

C144

2

1

2

2

2

2

2

1

1

1

1

1

E

K

J

L

B

K

M

E

D

D

D

D

OI

R

N

N

N

N

GI

O

G

G

G

G

D

C

A

A

C

A

D

P

P

P

D

GI

_

_

_

N

C

D

3

3

3

G

D

D

_

2_AUXCLK

2_AUXCLKEN

2_BIN

2_BIP

2_BQN

2_BQP

2_RFIAP

2_RFIAN

2_RFIDP

2_RFIDN

2_RFIEP

2_RFIEN

2_RFIPP

2_RFIPN

2_RFOH

2_RFOL

2_XTAL1

2_XTAL2

2_AFC

2_VIO

2_XDIV

2_XOUT

2_XMODE

2_XEN

2_RAMPIN

2_RAMPOUT

2_SCLK

2_SDIO

2_DIAGAD

2_SENB

2_PDNB

2_RESETB

_

N

3

3

G
_
3

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

G

G

G

G

G

G

2

1

2

9

8

7

6

9

8

7

6

5

5

2

4

4

1

1

D

B

B

B

B

C

C

C

C

C

B

C

C

B

B

C

C122

BT_CLK

L122

C149

C186

C185

REF_ON_PMU

RX_TX_I_N
RX_TX_I_P

RX_TX_Q_N
RX_TX_Q_P

GSM_850_RXP

GSM_850_RXM

DCS_RXP
DCS_RXM

GSM_900_RXP

GSM_900_RXM

PCS_RXP

PCS_RXM

DCS_PA

REF_ON

VRAMP

RF_CLK

RF_DATA

RF_EN

PDNn

RFIC_RST

TP_PDNn

TP114

M10

M4

M5

M2

M3

A4

A3

A8

A7

A6

A5

A10

A9

A13

C13

K1

J1

F3

N10

E3

N9

D3

M9

K10

J10

N1

L2

C3

L1

C10

M11

R112

3

3

1

2

2

8

1

1

2

1

B

G

N

N

D

H

2

1

T

F

B

C

C

D

_

_

T

H

B

N

N

N

V

V

A

_

Y

G

1

1

B

S

D

A

D

D

_

V

D

P

D

D

D

C

V

_

V

V

_

D

3

D

_

_

2

V

C

3

3

_

D

2

_
3

U100

D

D

D

D

D

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

G

G

G

G

2

1

2

1

1

1

1

9

2

9

9

9

9

1

1

1

1

1

1

1

F

E

H

H

D

G

F

E

H

H

D

G

G

3

2

2

3

1

2

1

1

1

E

N

H

A

G

B

A

3

3

F

E

N

N

N

OI

_

D

P

Y

R

Y

U

V

GI

D

L

S

S

O

O

1

V

X

X

A

D

O

C

D

_

T

R

L

B

D

GI

D

3

_

_

_

V

D

V

3

3

D

_

D

V

_

D

3

D

D

D

_

3

D

D

3

D

V

V

V

V

_

_

_

3

3

3

D

D

D

D

D

D

D

D

D

N

N

N

N

G

G

G

G

1

9

3

2

1

J

J

J

J

D

D

D

D

D

D

D

D

N

N

N

N

N

N

N

N

N

N

N

N

N

G

G

G

G

G

G

G

G

G

G

G

G

G

1

7

6

5

4

3

9

8

6

5

4

3

1

L

L

L

L

K

K

K

K

K

K

K

K

ANT

G

9

DUF100

C131

L101

B1_TRX

L123

6

3

L103

TX

G

G

G

G

G

4

5

2

7

8

B1_PA_OUT

C109

C108

8-42

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-43

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

8-3-16.

SLAVE GSM Receiver

RX ON

Cell Power

F6079pin

-65

F6074pin

-68

:-60

Yes

dBm

Yes

dBm

Yes

dBm

≥

≥

No

No

Resolder L601,F607

Resolder C611

F600

-70

6,7

dBm

pin

≥

Yes

Check&Resolder

U601

Yes

END

No

Resolder F600, L610, L614

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-44

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-3-17.

SLAVE DCS Receiver

RX ON

Cell Power

F6079pin

-65

F6076pin

-68

:-60

Yes

dBm

Yes

dBm

Yes

dBm

≥

≥

No

No

Resolder L601,F607

Resolder C608

F600

-70

8,9

dBm

pin

≥

Yes

Check&Resolder

U601

Yes

END

No

c609Resolder F600, L605, L609

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-45

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

RFS600

ANT601

1

1

2

2

L601

DPCS_TX_S

GSM_TX_S

VC2_S
VC1_S

ANT600

1

1

2

2

G

2AC1G34

C628

C603

C602

C601

L603

L605

C614

C615

GSM1800|1900_TX

1

GSM850|900_TX

7

VC|GSM1800|1900_TX

3

VC|GSM850|900_TX

9

ANT

GSM1800|1900_RX

GSM850|900_RX

G

G

0

5

8

1

F600

9

C608

1

C608

6

42

G

C611

C611

4

F607

IN1

IN2

OUT1

L609

8

OUT1

7

OUT2

OUT2

G

G

G

G

0

5

3

2

1

L610

6

L614

L607

L612

RX_TX_QN_S

RX_TX_QP_S

RX_TX_IN_S
RX_TX_IP_S

REF_ON_S

CLK26M_REF_S

C624

9

0

1

2

-

+

X

X

R

R

_

_

M

M

S

S

G

G

S

NC

S

U

U

21

TEST_A

22

TEST_B

23

NC

24

NC

25

VDD_BB

26

Q-

27

Q+

28

I-

29

b

I+

3
1|

30

N

6

E

2

_

_
F

K

E

L

R

C

2

1

3

3

OSC600

21

4

3

8
1

-

+

X

X

R

R

_

_

M

M

S

S

G

G

E

E

U601

O
X

T

C

U

D

O

_

_

D

F
E

D
V

R

3
3

VDD_RX_TX_S_2.8V

6

5

4

3

2

7

1

1

1

1

1

1

1

1

-

-

2

+

+

X

X

X

F

X

X

T

R

R

_

R

R

R

_

_

_

S

_

_

S

S

D

S

S

C

C

C

D

P|

C

C

P

D

V

P

D

S

US|EGSM_TX

C
D

10

PA_VCTRL

9

TX_VCTRL

8

VDD_RF

7

VDD_LO

6

VCO_SYN_REG

5

VDD_SYN

4

VDD_IO

3

DATA

G

2

E
R

G

T

CLK

_

E

U

-

+

R

O

_

N

NI

_

I

O

P

_

_

X

F

F

M

C

E

E

E

D

R

R

T

7

6

5

4

3

3

3

3

3
2
6
C

1

GI
D

_

D

D

N

D

E

V

L

G

9

1

8

0

3

4

3

4

C622

R602

VDD_RX_TX_S_2.8V

C621

RF_EN_S

VDD_IO_HIGH_S_2.9V

C620

VDD_IO_LOW_S_1.8V
RF_DATA_S
RF_CLK_S

C627

VCC_SYN_S_2.8V

C626

8-46

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-47

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

8-3-18.

SLAVE GSM Transmitter

TX ON(5Level)

Yes

F607 Pin

PAM600 pin

30

30

dBm

No

dBm

16

9

≥

≥

yes

Yes

Resolder C601

Resolder L608, F607

No

PAM600 pin

≥

-4

dBm

6

No

Check&Resolder

U601

Yes

END

Yes

Resolder PAM600, C616

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-48

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-3-19.

SLAVE DCS Transmitter

TX ON(0Level)

Yes

F607 Pin

PAM600 pin

28

28

dBm

No

dBm

19

9

≥

≥

yes

Yes

Resolder C601

Resolder L604, F607

No

PAM600 pin

≥

-4

dBm

4

No

Check&Resolder

U601

Yes

END

Yes

Resolder PAM600, L600

FEM CONTROL

TX_GSM850/900

TX_DCS/PCS

RX_GSM850/900

RX_DCS/PCS

B1_TRX

B8_TRX

RFSM1

1

1

0

0

1

1

RFSM3RFSM2

1

0

1

0

1

0

1

0

1

1

0

1

8-49

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

ANT601

RFS600

ANT600

1

1

2

1

1

2

2

2

L601

C628

C602

G

2AC1G34

C603

L603

C601

26

VBATT

G

G

G

8

7

5

1

1

1

VDD_RX_TX_S_2.8V

C608

C611

L604

C604

L608

C612

19

DCS|PCS_OUT

16

38

G

37

G

36

G

35

G

G

G

G

G

G

G

G

0

1

2

2

G

G

G

2

1

0

9

8

7

4

3

3

3

3

2

2

2

3

3

DPCS_TX_S

C605

GSM_TX_S

C613

VDD_RX_TX_S_2.8V

9

ANT

GSM1800|1900_TX

DPCS_TX_S

GSM_TX_S

VC2_S
VC1_S

L600

C609

C610

C616

PON_PA_S

BAND_SEL_S

PA_RAMP_S

C618

C617

C619

1

GSM850|900_TX

7

VC|GSM1800|1900_TX

3

VC|GSM850|900_TX

C614

C615

VBAT

4

DCS|PCS_IN

6

GSM_IN GSM_OUT

23

TX_EN

22

BS

24

VRAMP

25

VLOGIC

G

G

G

1

2

3

6

GSM1800|1900_RX

42

GSM850|900_RX

G

G

G

8

0

5

1

F607

C606

C607

PAM600

G

G

G

G

G

G

G

G

G

4

3

2

1

0

9

5

8

7

1

1

1

1

1

C620

C621

6

4

5

2

3

8

9

7

RX_TX_QN_S

RX_TX_QP_S

RX_TX_IN_S
RX_TX_IP_S

0
2

-

+

X

X

R

R

_

_

M

M

S

S

G

G

S

NC

S

U

U

21

TEST_A

22

TEST_B

23

NC

24

NC

25

VDD_BB

26

Q-

27

Q+

28

I-

29

b

I+

3
1|

30

N

6

E

2

_

_
F

K

E

L

R

C

1
3

1

1

1

1

1

1

1

1

1

1

-

-

­2

+

+

+

X

X

X

X

F

X

X

X

T

R

R

R

_

R

R

R

R

_

_

_

_

S

_

_

_

S

S

M

D

S

S

C

M

C

C

S

P|

D

C

C

S

P

D

V

G

P

D

G

S

E

US|EGSM_TX

E

C
D

10

PA_VCTRL

9

TX_VCTRL

8

VDD_RF

U601

O
X

T

+

C

U

NI

D

O

_

_

_

F

D

F

E

E

D

R

V

R

5

4

3

2

3

3

3

3

7

VDD_LO

6

VCO_SYN_REG

5

VDD_SYN

4

VDD_IO

3

DATA

G

2

E
R

G

T

CLK

_

E

U

GI

1

­R

O

_

NI

_

D

O

_

P

_

D

X

F

D

M

N

C

E

D

E

E

D

R

V

G

T

L

7

6

9

8

0

3

3

3

3

4

C622

1
4

VDD_IO_LOW_S_1.8V

RF_DATA_S
RF_CLK_S

REF_ON_S

R602

RF_EN_S

VDD_IO_HIGH_S_2.9V

VCC_SYN_S_2.8V

CLK26M_REF_S

3
2
6

C624

OSC600

21

3

C

4

C627

C626

8-50

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-51

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

8-3-20.

FM Radio Part

FM Radio does not work

Check VDD_IO_LOW_1.8V,

VDD_IO_HIGH_2.6V

Check32khz_digit clock and

Yes

Is it working?

Yes

SCL, SDA data line

Yes

No

No

Check the PMU part

Check the U300 clock generater part

and

UCP200 I2C Part(SCL,SDA)

Check Audio signal

waveform (ANL, ANR)

using oscilloscope

Yes

END

No

Check the C442, C443

or

Resolder or Replace U403

8-52

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Level3Repair

8-53

SAMSUNG Proprietary-Contents may change without notice

Level3Repair

Service Schematics

8-4.

NC Point(Top View)

-

NC

:

UCP200

1 2 3 4 5 6 7 8 9 10111213141516171819

A

B

C

D

E

F

G

H

J

K

L

M

N

P

R

T

U

V

W

1 2 3 4 5 6 7 8 9 10111213141516171819

A

B

C

D

E

F

G

H

J

K

L

M

N

P

R

T

U

V

W

8-54

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

NC

:

UME200

12345678910

A

B

C

D

E

F

12345678910

Level3Repair

A

B

C

D

E

F

8-55

SAMSUNG Proprietary-Contents may change without notice