GT-E2121B SVCM Final Anyservice

GSM TELEPHONEGT-E2121B

1. Safety Precautions

2. Specification

3. Product Function

4. Array course control

5. Exploded View and Parts list

6. MAIN Electrical Parts List

7. Block Diagrams

8. PCB Diagrams

9. Chart of Troubleshooting

10. Reference data

11. Disassembly and AssemblyInstructions

GSM TELEPHONE CONTENTS

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

Samsung Electronics Co.,Ltd.

2010. 03. Rev.1.0

ⓒ

Country Web Site

North America service.samsungportal.com

Latin America latin.samsungportal.com

CIS cis.samsungportal.com

Europe europe.samsungportal.com

China china.samsungportal.com

Asia asia.samsungportal.com

Mideast & Africa mea.samsungportal.com

GSPN (Global Service Partner Network)

SAMSUNG Proprietary-Contents may change without notice

5. Exploded View and Parts List

5-1

This Document can not be used without Samsung's authorization

5-1. Cellular phone Exploded View

QFR01

QLC01

QMP01

QSP01

QCA01

QMO01

QRE01

QCR89

QKP01

QMI01

QME01

QAN02

QBA01

QBC00

QCW01

QIF01


9. Flow Chart of Troubleshooting


9-1

9-1. Power On

No

Not OK

Not OK

Not OK

Not OK

Check VPERM_3.0V,VANA_2.85V, VRF_2.85V,VSIM_3.0V, VMEM_1.8V,VGPIO_2.8V of UCP201

Check the UCP201

END

OK

Check the pin 1 ofOSC201 produces clock

signalSolder OSC201 again

OK

Check the L118concerning about Jig

Power onSolder L118 again

OK

Is Power On working?

OK

Repeat sequence

Yes

Change batteryCheck battery voltage

is higher than 3.3V

Yes

'POWER ON' does not work

SAMSUNG Proprietary-Contents may change without noticeThis Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-2

EAR_MIC

C150

VBAT

L115

C148

R125

C135

L116

R124

D L118

D3

G1

S2

3

R120

L113

C137

U313

C133

C134

R126

C147 C149

C136

R119

R117

R122

R138

R139

R137

VCHG_5V

R123

VDD_AIT_3.3V

C132

U314

27NC

88

99

21NC

NC 22

NC 23

24NC

NC 25

26NC

1919

22

2020

33

44

55

66

77

1111

1212

1313

1414

1515

1616

1717

1818

HY20-AB0310IFC100

11

1010

6

R128

ZD105

1

2

3453456

ZD104

1

2

L111

L117D

UART0_TD

UART0_RD

VCM_OUT

JIG_ON_IF

AUX_DET

JIG_ON

USB_EN

R_ANT

USB_DP

EAR_P

EAR_SW

EAR_MIC_N

EAR_MIC_P

EAR_SW_REF

USB_DM

EAR_N

L201

W9

UART1_RDW5

W6UART1_RTS

W8ICHGN

ICHGP

W12PMU_VPERM

W13PMU_VRF

W14PMU_VANA

W15PMU_VIO

V5UART1_TD

V7UART1_CTS

V8POK_OUT

PMU_VSIM

V15PMU_VMEM

V14

T5PWM_OUT1

T6PWM_OUT2

T7PWM_OUT0

T8POK_IN

L15FE_CTRL3

L18UART0_RD

L19XTAL_32K_1

UART0_TD

K19XTAL_32K_2

FE_CTRL2K15

K18

J18PCM_SYNC

J19PCM_CLK

PCM_DI

H16PCM_DO

H18

H19SIM_CLK

H15

G1RFIE_N

F1RFIE_P

E1RFID_N

D1RFID_P

B5XTAL_SHLD

B6XTAL_SHLD

B7XTAL_SHLD

B8XTAL_SHLD

C1RFIP_N

A8XTAL_SHLD

B1RFIP_P

A2RFOL

A5XTAL_SHLD

A6XTAL_26M_2

A7XTAL_26M_1UCP201

PNX4852

A1RFOH

2

43

1

OSC200

3

21

OSC201

UART1_TD

ONKEY_1

VPERM_3.0V

VRF_2.85V

VANA_2.85V

VGPIO_2.8V

UART1_RD

ICHGN

ICHGP

ONKEY_2

VSIM_3.0V

UART0_TD

DCSRX_N

EGSMRX_P

EGSMRX_N

DU

DD

SIM_CLK

PON_PA

FSC

DCL

UART0_RD

MOD_STANDBY

DCS_TX

EGSM_TX

DCSRX_P

VMEM_1.8V




9-3



9-4

9-2. SIM Part

"Insert SIM" is displayed on the LCD

VSIM_3.0V at the pin#1

SIM200 = "H"?

NoCheck the SIM Power

Yes

Is there any signal pin#2,3,4 of SIM201?

Check UCP201No

Yes

Check the SIM Card

END




9-5

C234 G

1314

GG

1516

GC232

2

3 4

5

6

77

8 8

99

SIM201

1

1010

11 11

1212

VSIM_3.0V

R213

C233

SIM_CLK

SIM_DATA

SIM_RST



9-6

9-3. Microphone Part - Phone MIC

Phone MIC does not work

Yes

Not OKCheck the connection

of MIC Solder MIC again

Yes

Replace MIC

OK

Is Phone MIC working?

OK

Solder R118, R132, C141, C145 andC142 again

Check the componentswhich are connected to

MIC_BIAS

Solder L108, R131, ZD100 and ZD103again.

Check the circuitof MIC PART

END

Not OK

Not OK

No

OK




9-7

MAIN_MIC

R118

R132

C142

C146

R130

MIC_BIAS

ZD

10

3Z

D1

00

0ohm

R131

L108

MIC100

C140

C141

C145

MIC_P

MIC_N



9-8

9-4. Microphone Part - Earphone MIC

Earphone MIC does not work

Yes

Not OKCheck the connection

of IFC100 Solder pin 3 of IFC100 again

Solder L111, L113 and R120 againCheck the circuitof EAR MIC

OK

Solder R118, R132, C141, C145 andC142 again

Check MIC_BIAS.( When UCP201 operates

and call is connected )

OK

END

Not OK

Is Earphone MIC working? Repeat the sequence

Yes

No

OK

Not OK




9-9

1

S2

Q1

00

D3

G

L111

C137

R128

R119

R125

C133

1

2

3456

ZD105

L115

R117

1

2

3456

ZD104

R123

C134

C138

L117

VCHG_5V

C150

L113

VBAT

1005

R126

R122

R120

C136

C147

C139

L116

C135

NC 22

NC 23

24NC

NC 25

26NC27NC

2020

33

44

55

66

77

88

99

21NC

1414

1515

1616

1717

1818

1919

22

HY20-AB0310IFC100

11

1010

1111

1212

1313

VDD_3.3V

C149 C148

R129

C132

R124

L118

VCM_OUT

JIG_ON_IF

AUX_DET

UART0_RD

JIG_ON

TA_DETECT

USB_EN

UART0_TD

EAR_MIC_N

EAR_MIC_P

EAR_SW_REF

USB_DM

EAR_N

R_ANT

USB_DP

EAR_P

EAR_SW

MAIN_MIC

R118

R132

C142

C146

R130

MIC_BIAS

ZD

10

3Z

D1

00

0ohm

R131

L108

MIC100

C140

C141

C145

MIC_P

MIC_N



9-10




9-11

9-5. Earphone Part

Earphone does not work

Yes

Not OKSolder pin 5,6,7 of IFC100

, L115, L116 and L117 again

Check the circuitof IFC100

OK

Check the UCP201Pin R19, T19, P19

Solder UCP201 or replace UCP201Not OK

END

Yes



9-12

R209

C228

EAR_OUT_N|RW16

EAR_OUT_P|LW17

HSET_OUT_NW18

HSET_OUT_PW19

INTMIC_IN_PV19

EXTMIC_BIASU18

INTMIC_IN_NU19

INTMIC_BIAST18

EXTMIC_IN_PT19

AUXAUD_IN_RR18

EXTMIC_IN_NR19

HKSW_DET1P19

HKSW_DET2N19

R210

FM_L

FM_R

KEYIN(0)

MIC_BIAS

EAR_MIC_N

EAR_MIC_P

MIC_N

MIC_P

SPK_P

EAR_P

SPK_N

EAR_SW_REF

EAR_SW

EAR_N

Digital External Interface- UART

EAR_MIC

1

S2

Q1

00

D3

G

L111

C137

R128

R119

R125

C133

1

2

3456

ZD105

L115

R117

1

2

3456

ZD104

R123

C134

C138

L117

VCHG_5V

C150

L113

VBAT

1005

R126

R122

R120

C136

C147

C139

L116

C135

NC 22

NC 23

24NC

NC 25

26NC27NC

2020

33

44

55

66

77

88

99

21NC

1414

1515

1616

1717

1818

1919

22

HY20-AB0310IFC100

11

1010

1111

1212

1313

VDD_3.3V

C149 C148

R129

C132

R124

L118

VCM_OUT

JIG_ON_IF

AUX_DET

UART0_RD

JIG_ON

TA_DETECT

USB_EN

UART0_TD

EAR_MIC_N

EAR_MIC_P

EAR_SW_REF

USB_DM

EAR_N

R_ANT

USB_DP

EAR_P

EAR_SW




9-13

9-6. Charging Part

Abnormal charging operation

Yes

Not OKCheck the U200

Pin #1 = 5V? Replace U200

OK

OK

END

Check the TA connection.

Check the C225 andR214 Solder C225 and R214.

Not OK



9-14




9-15

9-7. Speaker Part

Speaker does not work

Yes

Not OKSolder R210, L109, L110, ZD101 and

ZD102 again

OK

END

Not OK

Solder UCP201 again or replaceUCP201

Not OKCheck Pin W18, W19 of

UCP201

Check R210, L109, L110,ZD101 and ZD102

OK

Replace the speaker



9-16

HSET_OUT_NW18

HSET_OUT_PW19

HKSW_DET1P19

HKSW_DET2N19

R210SPK_P

SPK_N

EAR_SW_REF

EAR_SW

SPEAKER

ZD

101

L110

L109SPEAKER_PAD

33nH

ZD

102

C143

SPK_P

SPK_N




9-17

C14

3

L109

L110

L302

R32

4

SP

EA

KE

R_

PA

D

U307

ZD101

ZD102



9-18

9-8. Key Data Input

When one of the keys ispushed,

is it displayed on LCD?

Check the Dome sheet & Key FPCB

END

No

Yes

Yes

Check Initial Operation

When one of the keys ispushed,

KEY_IO signal is OK?

Replace the PBA

No

Yes




9-19

9-9. Back Light (for Color Main LCD)

Is BACKLIGHT set AlwaysONin the Menu?

Set BACKLIGHT on Always ON

END

No

Yes

Yes

Backlight does not work

Check the outflow voltage ofU303(PIN 3) is equal to 3.7V

Replace U303Not OK

OK

Yes

Replace the LCD Module



9-20

R325

1005

D2

EN1

GND2

IN3

RSET5

U303

D16

4

C310

VBAT

LCD_BL_EN

-LED2

-LED1




9-21

9-10. Key Back Light

Key Backlight does not work

Replace LED

Yes

OK

Not OKResolder C309 and replace U302.Check KEY_EN and C309

Yes

Yes

No

END

Set BACKLIGHT on Always ONIs BACKLIGHT set AlwaysON in the Menu?



9-22

KEY LED

LED302

R314

LED304

C309

VBAT

LED300 LED301 LED303

R317R315 R319C308 R316

LED305

R318

EN3 2GND

GN

D5

VIN4 1VOUT

MIC5365-3.3YMTU302

KEY_EN




9-23

9-11. GSM Receiver

RX ONRF INPUT=62CH

AMP=-50dBm

Yes

Check PAM100

pin 12(EGSMRX)

≥-65dBm

No Resolder or ChangePAM100

Yes

END

Check UCP201

pin G1, F1 (EGSMRX)

≥-65dBm

No

Resolder or ChangeF100

Check UCP201MOD_STANDBY=HIGH

PON_PA=LOWBAND=LOW

Yes

NoResolder or Change

UCP201

Check C125, C127, and L106

Not ok



9-24

9-12. GSM Transmitter

Yes

PAM100 Pin16≥ 30dBm

Resolder PAM100(TX MODULE)

TX ON (5Level)

PAM100 pin4≥ 0dBm

Resolder UCP201

Yes

Yes

No

No

END

Check UCP201

Yes




9-25

9-13. DCS Receiver

Yes

Check PAM100

pin 17(DCSRX)

≥-65dBm

No Resolder or ChangePAM100

Yes

Yes

END

Check UCP200

pin E1, D1 (DCSRX)

≥-65dBm

>

No

Resolder or ChangeF100

Check UCP201MOD_STANDBY= "HIGH"

PON_PA= "LOW"BAND= "HIGH"

Yes

NoResolder or Change

UCP201

RX ONRF INPUT=698CH

AMP=-50dBm

Check C117, C122 and L102

Not ok



9-26

9-14. DCS Transmitter

PAM100 Pin16≥ 30dBm Resolder PAM100

TX ON (0Level)

PAM100 pin2≥ 0dBm

Resolder UCP201

END

Check UCP201




9-27



9-28

9-15. FM Radio Part

Not OKSolder UCP201 again

OK

Not OK

Replace the UCP201

END

FM Radio does not work

Yes

Check the voltage atPin#16, #11, #10 of U311.

Is it OK?

Not OK

Resolder of change U311

OK

Is there any singnals atthe Pin#1 and #1 of

U311?Resolder of change U311

Not OK

OK

Is there any signals at thePin#P18 and #R18 of

UCP201?

Resolder of change U311




9-29



9-30

9-16. BLUETOOTH

BT Connection disable

check BT Funtion on

Yes

Not OKEnable BT Function

Check C115 > 2.8VNot OK

Check the path form UCP201to U103

Check the path form UCP201to U103

OK

Check Testpoint 100=32khzNot OK

Enable BT Function

Not OK

OK

Check the Status ofANT102

OK

Replace U103

OK

END




9-31



7. Block Diagrams

7-1

GT-E2121B BLOCK DIAGRAM7-1. Main Block Diagram

PNX4852GSM/GPRS Class 10 signal chip

32-bit ARM926EJ-S™ control processor

SAIC/TTY/CTM

Integrated DCXO and AFC correction

I2C/UART/PCM/PWM

Bluetooth/FM support

SIM card interface

Color LCD, up to 176x220 pixels, 65K colors

Analog accessory detection

Threeclock output(32KHz,26MHz,26/nMHz)

Up to 42 GPIOs(1.8V/2,8V)

78MHz burst memory access

KEYPAD

MOTOR

SIM

OVP

BATTERY

MEMORY

IF CONNECTOR

RF SYSTEM

BLUETOOTH

FM RADIO

EAR MIC

MIC

SPEAKER

EAR SPEAKER

BACK-END IC

AIT708U

SD CARDLCD

CSTN

Camera

VGA

PMU

RF Subsystem

Audio Subsystem


8. PCB Diagrams

8-1


8-1. Top


PCB Diagrams

8-2


8-2. Bottom

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GT-E2121B SVCM Final Anyservice

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