Samsung M300 Service Manual

GSM TELEPHONE

SGH-M300

GSM TELEPHONE				CONTENTS
		1.		Specification
		2.		Exploded View and Parts list
		3.		Chart of Troubleshooting
		4.		Array course control
		5.		Block Diagrams
		6.		PCB Diagrams
		7.		MAIN Electrical Parts List
		8.		Reference data
		9.		Safety Precautions
			10. Product Function

Contents

1. Specification

1-1. GSM/CDMA General Specification		...........................................................................1-1
1-2. GSM TX power class ...............................................................................................		1-2
2. Exploded View and Parts list
2-1. Cellular	phone Exploded View ..................................................................................	2-1
2-2. Cellular	phone Parts list ............................................................................................	2-2
2-3. Disassembly ...............................................................................................................		2-4
2-4. Assembly ....................................................................................................................		2-8
2-5. LCD KIT Assembly ..................................................................................................		2-10
3. Chart of Troubleshooting
3-1. Baseband ............................................................................................................		3-1
3-1-1.	Power ON .....................................................................................................	3-1
3-1-2.	System Initial ................................................................................................	3-6
3-1-3.	SIM Part .......................................................................................................	3-8
3-1-4.	Charging Part .............................................................................................	3-10
3-1-5.	Microphone Part .........................................................................................	3-13
3-1-6.	Speaker Part ..............................................................................................	3-16
3-1-7.	Receiver Part .............................................................................................	3-20
3-1-8.	Camera Part ..............................................................................................	3-22
	1) 2Mega Camera .....................................................................................	3-22
	2) VGA Camera .........................................................................................	3-23
3-1-9.	LCD .............................................................................................................	3-26
3-2. RF	......................................................................................................................	3-13
3-2-1.	EGSM Receiver .........................................................................................	3-30
3-2-2.	EGSM Transmitter .....................................................................................	3-31
3-2-3.	DCS Receiver ............................................................................................	3-32
3-2-4.	DCS Transmitter ........................................................................................	3-33
3-2-5.	PCS Receiver .............................................................................................	3-34
3-2-6.	PCS Transmitter .........................................................................................	3-35
3-2-7.	UMTS Receiver ..........................................................................................	3-40
3-2-8.	UMTS Transmitter ......................................................................................	3-41
3-2-9.	BLUETOOTH ..............................................................................................	3-45

		Contents
4. Array course control
4-1.	Downloading Binary Files ......................................................................................	4-2
4-2.	Pre-requsite for Downloading ................................................................................	4-2
4-3.	S/W Downloader Program .....................................................................................	4-3

5.Block Diagrams

6.PCB Diagrams

7.MAIN Electrical Parts List

8.Reference data

8-1. Reference Abbreviate ..............................................................................................	8-1
9. Safety Precautions
9-1. Repair Precaution ......................................................................................................	9-1
9-2. ESD(Electrostaically Sensitive Devices) Precaution ................................................	9-2

10. Product Function

1. Specification

1-1. GSM General Specification

		GSM 900		EGSM 900		DCS1800
		Phase 1		Phase 2		Phase 1
	Freq. Band[MHz]	890~915		880~915		1710~1785
	Uplink/Downlink	935~960		925~960		1805~1880
	ARFCN range	1~124		0~124	&	512~885
				975~1023
	Tx/Rx spacing	45 MHz		45 MHz		95 MHz
	Mod. Bit rate/	270.833 Kbps		270.833 Kbps		270.833 Kbps
	Bit Period	3.692	us	3.692	us	3.692	us
	Time Slot Period/Frame	576.9	us	576.9	us	576.9	us
	Period	4.615 ms		4.615 ms		4.615 ms
	Modulation	0.3 GMSK		0.3 GMSK		0.3 GMSK
	MS Power	33 dBm~13 dBm		33 dBm~5 dBm		30 dBm~0 dBm
	Power Class	5 pcl ~ 15 pcl		5 pcl ~ 19 pcl		0 pcl ~ 15 pcl
	Sensitivity	-102 dBm		-102 dBm		-100 dBm
	TDMA Mux	8		8		8
	Cell Radius	35 Km		35 Km		2 Km

1-1

Specification

1-2. GSM TX power class

	TX Power	GSM900
	control level
	5	33±2 dBm
	6	31±2 dBm
	7	29±2 dBm
	8	27±2 dBm
	9	25±2 dBm
	10	23±2 dBm
	11	21±2 dBm
	12	19±2 dBm
	13	17±2 dBm
	14	15±2 dBm
	15	13±2 dBm
	16	11±3 dBm
	17	9±3 dBm
	18	7±3 dBm
	19	5±3 dBm

	TX Power	DCS1800
	control level
	0	30±3 dBm
	1	28±3 dBm
	2	26±3 dBm
	3	24±3 dBm
	4	22±3 dBm
	5	20±3 dBm
	6	18±3 dBm
	7	16±3 dBm
	8	14±3 dBm
	9	12±4 dBm
	10	10±4 dBm
	11	8±4 dBm
	12	6±4 dBm
	13	4±4 dBm
	14	2±5 dBm
	15	0±5 dBm

1-2

2. Exploded View and Parts List

2-1. Cellular phone Exploded View

QFR01

QKP01	QFU01
	QLC01
QCR12	QSP01
QMP01	QMO01
	QMW01
QME01
	QCA01
QAN10
	QHI01
QMI01
QSH01
QAN02
QRF01	QFL01
QRE01	QCR12
	QSC01
QVO01
QCR12
	QRF03
QBA01

2-1

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Exploded View and Parts List

2-2. Cellular phone Parts list

Design LOC		Discription	SEC CODE
QAN02		INTENNA-SGH-M300	GH42-01219A
QAN10		ASSY-CUSHION-ANT CONTACT RUBBE	GH98-01218A
QBA01		BATTERY-700MAH.MAIN,ENG,OCEAN	GH43-02873A
QCA01		UNIT-CAMERA MODULE	GH59-04349A
QCR12		SCREW-MACHINE	6001-001530
QCR12		SCREW-MACHINE	6001-001530
QCR12		SCREW-MACHINE	6001-001530
QFR01		ASSY CASE-FRONT	GH98-04187B
QFU01		ASSY CASE-FOLDER UPPER	GH98-04189B
QKP01		ASSY KEYPAD-(XET/EB)	GH98-04194B
QME01		UNIT-DOME SHEET 22 KEY	GH59-04499A
QMI01		MICROPHONE-ASSY-SGH_B600	GH30-00369A
QMO01		MOTOR DC-SGHS342I	GH31-00119A
QMP01		PBA MAIN-SGH_M300	GH92-03849A
QRF01		PMO-COVER RF	GH72-38610A
QSC01		MPR-SHEET SCREW CAP	GH74-30953A
QSH01		ASSY CASE-SHIELD CAN	GH98-04632A
QSP01		SPEAKER	3001-002153
QVO01		ASSY KEY-VOLUME	GH98-05305A
QLC01		ELA UNIT-SGH-M300 LCD MODULE	GH96-02546A
	QMW01	ASSY COVER-MAIN WINDOW	GH98-04255A
QRE01		ASSY CASE-REAR	GH98-04191A
	QRF03	PMO-COVER EAR IF	GH72-38609A
QFL01		ASSY CASE-FOLDER LOWER	GH98-04190A
	QHI01	ASSY HINGE	GH98-03590A

2-

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Exploded View and Parts List

Discription	SEC CODE
BAG PE	6902-000297
ADAPTOR-SGHE690,SIL,EU,A_TYPE	GH44-01361B
UNIT-20P,EARPHONE,SIL,B-TYPE	GH59-04029B
LABEL(R)-WATER SOAK	GH68-09361A
MANUAL USERS-EU GERMAN	GH68-14617A
LABEL(R)-MAIN EU	GH68-14836A
BOX(P)-UNIT MAIN EU	GH69-05422A
MPR-SUB LCD CONN GAS	GH74-10794A
MPR-REMOVE TAPE LCD	GH74-13804A
MPR-LCD PCB MASK TAPE B	GH74-15067A
MPR-TAPE LED	GH74-17926A
MPR-INSU TAPE	GH74-19264A
MPR-GASKET TAPE	GH74-27014A
MPR-INSU TAPE SUB LCD	GH74-27510A
MPR-INSU TAPE	GH74-27512A
MPR-INSU TAPE	GH74-29298A
MPR-TAPE MAIN FPCB	GH74-30585A
MPR-INSU TAPE	GH74-30759A
MPR-TAPE MAIN FPCB	GH74-30860A
MPR-VINYL BOHO MAIN WINDOW	GH74-31871A
MPR-VINYL BOHO MAIN WINDOW	GH74-31987A
VINYL-BOHO MAIN	GH74-32579A
TAPE GASK-LCD SIDE A	GH74-32812A
TAPE-BACKLIGHT	GH74-32834A
TAPE-MAIN WINDOW	GH74-32837A
TAPE	GH74-33042A
TAPE-PCB GASKET	GH74-33071A
SPONGE	GH74-33094A
TAPE INSU	GH74-33095A

2-3

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Exploded View and Parts List

2-3. Disassembly

1

1)Unscrew 4points from the rear case

2)Open the IF COVER

caution

1)Be care of Shooting out damage and scratch not to occur.

3

2

(1)
				(3)
	(2)

1) Disjoint from left low side to up side of rear case as below picture.

caution

1) When you disjoint a rear case, be care of

Shooting out damage and scratch not to occur.

4

1)Remove the Volume key.

2)Disjoint B'd from front case.

caution

1)During disconnecting the B'd from FRONT, pay

attention not to tear the LCD FPCB.

1)Remove the shield can screw

2)Disjoint shield can from B'd

caution

1) Pay attention not to damage for LCD FPCB during disconnecting the Shield can screw.

2-

4

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Exploded View and Parts List

5

6

Press the

hinge

	1)	Disconnect the LCD connecter and Disjoint the
		B'd
	2)	Remove the dust protection tape
	caution			1) Pressing the hinge using the rounded tweezers
	1)	Be care of Shooting out damage and scratch		or sort of thing, disjoint FRONT.
				caution
		not to occur.
				1) Be care of Shooting out damage and scratch
	2)	Pay attention not to damage for LCD FPCB.
				not to occur.
	7			8

(2)

(1)

				(3)
			1)	After disjoint the hooker of the lower side,
				disassemble the LOWER case as below the
	1)	Remove screw cover using tweezers.
	2)	Unscrew at the folder upper using a screwdriver		picture.
	caution		caution
	1)	Be care of Shooting out damage and scratch	1)	Be care of Shooting out damage and scratch
		not to occur.		not to occur.
		2-5
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Exploded View and Parts List

9

10

1)Remove the Speaker/Motor in the LOWER.

2)Remove the LCD in the LOWER.

caution	1)	Check	the separated plastics.
1) Be care of Speaker/Motor wire cracking or	caution
damage.	1)	Check	all of the material is taped.

2-

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Exploded View and Parts List

2-4. Assembly

1

Arrange the wire

1)Put the LOWER hinge hall to the LCD FPCB, and then put the camera to the PCB.

2)Put the Speaker to the LOWER case, and then arrange the Wire. Put the

speaker to the LOWER case, right side slightly.

caution

1)Be care of SPEAKER/MOTOR wire cracking or damage.

3

2

1)Joint folder hinge side of UPPER case.

2)Joint folder UPPER case side and edge.

caution

1) Be care of Shooting out damage and scratch

not to occur.

4

1)Screw two point of FOLDER Ass'y.

2)Assemble the SCREW COVER

caution

1)Be care of Shooting out damage and scratch not to occur.

1)Put the FPCB to the FRONT hole.

2)Pressing the red colored hinge, assembly the folder and FRONT case

caution

1) Pay attention not to damage for LCD FPCB.

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Exploded View and Parts List

5

6

1)Attach anti-dust TAPE

2)Let a KEY PAD on front assy.

	caution
				1)	Lock a LCD CONNECTOR to PBA
	1)	Be care of Shooting out damage and scratch		caution
		not to occur.		1)	Assemble the LCD connect horizontally.
	2)	Pay attention not to damage for LCD FPCB.		2)	Pay attention not to damage for LCD FPCB.
	7			8

	oint the
joint the	hook
hook

Scwering

			1)	Joint the FRONT upper hook and B'd and
				arrange the B'd, FRONT.
			2)	Attach the Volume Key.
1)	Joint the shield can right hook and		caution
	hole of the B'd.		1)	Pay attention not to damage for LCD FPCB.
2)	Screw the left hall of the B'd.		2)	Confirm B'd is attached completely on the
caution
				FRONT.
1)	Pay attention not to damage for LCD FPCB.
		2-

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Exploded View and Parts List

9

Joint REAR case and FRONT case.

1) As below picture, joint the REAR upper

and FRONT and ASS'Y.

2) Joint the REAR case side, and then edge.

caution

1)Be care of Shooting out damage and scratch not to occur.

10

1)Screw 4 point on REAR assy'.

2)Attach the RF COVER.

caution

1)Be care of Shooting out damage and scratch not to occur.

2-9

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Exploded View and Parts List

2-5. LCD KIT ASSEMBLING
1	2

Taping silk			Taping silk
line				line

		Attach
				Attach
		conductive		isolation Tape
		Tape
1)	Attach conduction tape on the left and right
	side of LCD.
2)	Attach isolation tape on the left and right side 1) Attach the SPONGE along the line.
	of LCD.						2) Attach the isolation tape along the line.
caution							caution

1) When you attach the tape, be careful of a base 1) When you attach the tape, be careful of a base

line of a picture.		line of a picture.
3		4

camera connect sticky isolation Tape

	1)	Attach CAMERA CONNECTOR sticky isolation			1)	Attach the GASKET on the LCD CONNECTOR
					caution
		tape.
	caution				1)	When you attach the tape, be careful of a base
	1)	When you attach the tape, be careful of a base				line of a picture.
		line of a picture.				(Tape should be in the LCD connect.)

2-

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3. Flow Chart of Troubleshooting

3-1.Baseband

3-1-1. Power ON

'Power On' does not work

Check the current consumption

Yes

Current consumption >= 100mA

Yes

Check the Vbat Voltage

Voltage >=3.3V

Yes

Check the pin of UCP301

Pin#J12 >= 2.8V

Yes

Pin#A13 and pin#A14 =2.8V

Yes

Check the clock signal at pin#30 #31 of U101

Freq = 26MHz

Vrms >=300mV

Vpp 900mV

Yes

Check the clock signal at pin#8 of U101

Freq = 13Mz

Yes

Check the initial operation

END

No

Download again

No

Charge the Battery

No

Check UCP301 and C313

No	No
pin#G11 = 1.8V			Check UCP301 and C314
Yes

No

Check the clock generation circuit (related to OSC101)

No

Check U101

3-1

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Flow Chart of Troubleshooting

3-2

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Flow Chart of Troubleshooting

BV TA

V CC _D .2 V9

V CC _A .2 V9

V CC _D .2 V9

N20

10 VI4 1TA 14B B R

V

1

2

3

CT

RV

50

3R

513

C

V8.1

143 C

DCC V V 9 .2

313 C

V DCC 9 V .2

213 C

_FR V V 9.2

113 C

V ACC 9 V .2

013 C

_BC CV

903 C

403 C

KLST ATAOI TSLRCK CRMMII DMMII MMII SS SS SS

MISV

1LB YEK TOM

2LE 1LE SD SD NAB NAB

SUPC UUPPSSCDLK08C3O SDIUP

FER V

MRA LAC TR

PEE NE QRRK T B TW S I N R V IP

)2(L OC YEK

)0(W OR YEK

TAB V

713

C

PEE QR KR TNI WP

103 RT

103

31B

11C 31J 9N 01R 01P 11J K11 41K

21K 11H 21G 31G 31F 51F 21C 41A 9C 01D 01B 11B 21A B21 31A 21J 11G 41F

8K 8L 7N 7M

41E 31E 11E 21F 41D

51D 01E 01A 9E 01H

QRTNI

_PT _PT

3

2

KLC TSR OIP OMI TSR CKL P P U I M M U U S SI SI

M C V V V V 7 IS TR RD RD RD RD O V V G D D2EL D1EL RNI BVI LV

6O BS AS 5O BS AS O4 O3 2O 1O CC DLV 5LV 5LV DLV 4LV 4LV DVL DLV DLV DLV AV

CSP CSP CSP CSP NCS CKSL ODS IDS

TXE TAB VRD NES SER V V B I H CH HC C

U2X 1XU FER A A V CDA DCA

R

01L

1

43DDV 21DDV

FERC

NMLAC

01C

5DDV

T

9L

76DDV

BIV_GNR_NE

C

8E

QDNG

RWP_PEEK

9M

51B

DNG_1CSP

EDOM

01N

DNG_2CSP

51K

TESER_O

9K

11F

DNG_RUCH

1WSP_FUB

7L

RWP_NO

3J

1DDV

RWP_N1WS

51C

2DDV

GIJ_NO

3M

RWP_2WS

41C

3DDV

6N

PSD_TNI

5N

DDV_1OI

RTNID

3P

4J

DDV_2OI

7CN

5P

M31KLC_CM

5G

1SSV

CM

6R

2SSV

303

4K

QANEOX

1D

K23KLC

3SSV

2R

CTR_KLC

4N

4SSV

6P

C

DDDV

11N

ODIAD

6M

DDNG

10

01M

IDIAD

6L

8C13

6A

BDDV

NRIAD

4P

6F

BDNG

KCIAD

4R

VDDV

11L

3

NGERV

41R

31P

VDNG

PGERV

31M

4C

DDV_LTCO

P

MCVXV

31R

NTUOXUA

4B

DNG_LTCO

NTUOXUA

31L

PTUOXUA

CU

PTUOXUA

31K

XUA_3CDA

NNIXUA

31D

NNIXUA

41L

1SDNG

PNIXUA

203 C

7F

PNIXUA

51M

2SDNG

NTUOCIM

8F

NTUOCIM

51P

3SDNG

PTUOCIM

9F

PTUOCIM

51N

4SDNG

NNICIM

01F

NNICIM

41M

7G

5SDNG

PNICIM

41N

PNICIM

6SDNG

NBTUOA

8G

NBTUOA

21P

7SDNG

PBTUOA

9G

PBTUOA

21R

8SDNG

NATUOA

01G

NATUOA

21N

9SDNG

PATUOA

6H

PATUOA

11P

01SDNG

7H

XTR_NQ

8H

11SDNG

NQXTXR

6C

XTR_PQ

21SDNG

9H

PQXTXR

7C

XTR_NI

7J

31SDNG

NIXTXR

6D

41SDNG

XTR_PI

8J

PIXTXR

7D

51SDNG

9J

1FERAR

6B

61SDNG

01J

2FERAR

5B

01K

71SDNG

PS

9

1

5CN

PXT

7E

RWP_XT1

OI| WRN CNRESET

CFA

3C

2

6CN

OCT0L OCT1L T2LOC T3LOC OCT4L OCTL5 CT6LO OCT7L

1RESE 2REES RDAES CRKES L L

CFA

9D

51BD 41BD 31BD 21BD 11BD 01BD 9BD 8BD 7BD 6BD 5BD 4BD 3BD 2BD 1BD 0BD 8BA 7BA 6BA 5BA 4BA 3BA 2BA 1BA 0BA

2D 3D 3E 2E 3F 2F 1F 4F 4G 3G 5H 6J 5J 3K 2K 1K 5K 7K 1M 2M 2N 1N 5L 1P 6K 3L 2L 3R

6E 5C 5F 5E 4A 6G 3B 3A

1B 2A 1C 2C

)51)41)31 )21)11 01)9) )8)7 )6)5 )4)3 )2)1 0)

(B(BB( (B(B B(B( B((B (B(B (B(B (B(B B(

DDD DD DD DD DD DD DD D) ))) )) )) ) PPPSSS PPSS PPSS PPSS PPSS PPSS PPSS PSB8( 7(B6(B5(B 43(B(B 2(B1(B 0(B DDD DD DD DD DD DD DD DA AAA AA AA A PS PSPSPS PSPS PSPS PS

D DDD DD DD D

)51 :0(B DP SD

)8:0 BA( PSD

OPINWR TES SDP RE SD HS AFL

NENE2S 3SAN NENE NE MPA AE DF X FM O OR T A X M V

ELR TADCKL ES RREE SS

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Flow Chart of Troubleshooting

VCCD_2.9V VRF_2.9V

C102

GSM_PAM_IN

C104

DPCS_PAM_IN

RF_EN

C105

R107

CLK13M_TR

9

10

11

12

13

14

15

16

C108

R102

8

ND

TESRE

OIV

DDV

DDV

NDG

LOFR

RFOH RFIPP

PCS_LNA_IN_P

XOUT

CLK13M_MC

P

C110

R103

RTX_IP

7

BIP

17

CLK13M_YMU

RFIPN

PCS_LNA_IN_N

18

RTX_IN

6

BIN

RFIDP

DCS_LNA_IN_P

R108

R104

19

CLK13M_AIT701X

RTX_QP

5

BQP

U101

RFIDN

DCS_LNA_IN_N

20

RTX_QN

4

BQN

RFIEP

GSM_LNA_IN_P

21

SERDAT

SDIO

3

RFIEN

GSM_LNA_IN_N

22

SERLE

RFIAP

23

SERCLK

SCLK

1

RFIAN

NXE

AXT1L

2XATL

DDV

DDV

CAF

CN CNDNG

DVXI

EDOMX

24

35 34 33

32

31

30

29

28

27

26

25

R105

AFC

XOENA

C119

OSC101

C121

C122

C123

3

4

HOT GND2

GND1 HOT 2 1

3-4

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