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GSM TELEPHONE
SGH-E300

SERVICE
GSM TELEPHONE
1. 2. 3. 4. 5. 6.

Manual

CONTENTS
Specification Flow Chart of Troubleshooting Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams

1. SGH-E300 Specification
1. GSM General Specification
GSM900 Phas e 1 Fr eq. Band[MHz] Uplink/ Downli nk ARFCN r ange 890~915 935~960 1~124 EGSM 900 Phas e 2 880~915 925~960 0~124 & 975~1023 45MHz 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 33dBm~5dBm 5pcl ~ 19pcl -102dBm 8 35Km DCS1800 Phas e 1 1710~1785 1805~1880 512~885

Tx/ Rx s paci ng Mod. Bit rate/ Bit Period Ti me Slot Peri od/Fr ame Per iod Modulati on MS Power Power Cl a ss Sensit ivit y TDMA Mux Cell Radius

45MHz 270.833kbps 3.692us 576.9us 4.615ms 0 . 3 GM S K 33dBm~13dBm 5pcl ~ 15pcl - 102dBm 8 35Km

95MHz 270.833kbps 3.692us 576.9us 4.615ms 0 . 3 GM S K 30dBm~0dBm 0pcl ~ 15pcl - 100dBm 8 2Km

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SGH-E310 Specification

2. GSM TX power class
TX Power control level
5

GSM900

TX Power control level
0

DCS1800

33±2 dBm

30±3 dBm

6

31±2 dBm

1

28±3 dBm

7

29±2 dBm

2

26±3 dBm

8

27±2 dBm

3

24±3 dBm

9

25±2 dBm

4

22±3 dBm

10

23±2 dBm

5

20±3 dBm

11

21±2 dBm

6

18±3 dBm

12

19±2 dBm

7

16±3 dBm

13

17±2 dBm

8

14±3 dBm

14

15±2 dBm

9

12±4 dBm

15

13±2 dBm

10

10±4 dBm

16

11±3 dBm

11

8±4dBm

17

9±3dBm

12

6±4 dBm

18

7±3 dBm

13

4±4 dBm

19

5±3 dBm

14

2±5 dBm

15 1-2

0±5 dBm

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2. SGH-E300 Flow Chart of Troubleshooting 1.Baseband
1. Power ON
'Power On' does not work Yes

Check the current consumption more than 100mA

No Download again

Yes No Charge the Battery

Check the Voltage more than 3.3V

Yes

Check the pin 11 of U102 is more than 2.8V

No Check U102 and C117

Yes No U102 pin 33,39 = 2.8V Yes Yes U102 pin 9 = 1.8V No Check U102 and C116

Check the clock signal at pin4 of OSC801 Freq=13MHz ? Vrms300mV ? Vpp is around 900mVpp ?

No

Check the clock generation circuit

Yes Check the initial operation

END

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

2. Initial
Initial Failure Yes

Check the signal at the pin 19 of U102 is "High" when the phone is boot on

No Check U102

Yes No Check the U701

Check the pin 25 of U100 is "High" Yes Check the pin 4 of OSC801 is around 2.8V Yes Check LCD connector CN201, and resolder bridge Yes END

No

Check the soldered status of OSC801,R801,U102

3. Sim Part

Phone can't access SIM card Yes Check the pin 1 of CN100. voltage 3V ? Yes Check the SIM connector's (CN100) connection to SIM card Yes Check the circuit around CN100 input circuitry Yes Check the circuit around U601 output and vlotage supply circuitry Yes END No Check the related circuit of U601 and U102 No Check the related circuit of CN100 No Check the circuit related to U102

No Resolder or change CN100

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

4. Charging Part
Abnormal charging part Yes Check the pin 17, 18 of CN300 is TA_VEXT>4? Yes Check the pin 2 of Q102 is "low"? Yes Check the pin 3 of Q100 is "low"? Yes Check the pin 5 of Q102 is "3.2~4.2V"? Yes No Check the Q102 No Check the Q100 No Check the Q102 No

Replace TA,Check CN300

Check the ICHRG is 1V(during charging) and around 180mV(full charging)? No Resolder or change R102

Yes END

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

( Picture 1)
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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

(Picture 2)
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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

(Picture 3)
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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

5. Microphone Part
Microphone does not work Yes check the soldered status of microphone. Yes No Resolder microphone

Check the reference voltage on mic path C431 2.5 V

No

Resolder or change R424,C431,R413,C410,R408,R411

Yes No Is microphone ok? Yes END Check U701

6. Speaker Part
Speaker does not work Yes Check the connection from CN201 to LCD module Yes Check the PIN 4 of U401='High' and U409='High'? Yes No Is speaker ok? No Check U601 No Check the circuit related to U401

Check U701

Yes Is speaker ok? Yes END No Change Speaker

2-7

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

2-8

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

7. Camera Part

"Camera" function dose not work Yes Check the connect CN201 No Connect the camera module

Yes No U1002 PIN 9,10 = 2.8V? Check U1002 and C1022,C1021

Yes No R1020 = 25MHz Check U1001 and OSC1000

END

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

2-10

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

2.RF
1. EGSM RX
CONTINUOUS RX ON RF INPUT : 62CH
NORMAL CONDITION catch the channel?

NO

CHECK ANT701,L905 contact ?

AMP : -50dBm

YES
F900 CHECK pin8 -65dBm ?

NO

C900, F901 resolder or change

YES
F900 CHECK pin2,3 -65dBm ?

NO

F900 resolder or change

YES
U800 CHECK pin20,21 -65dBm ?

NO

C912,C913,L901 resolder or change

YES
U800 pin 9,32: 2.8V ?

NO

U102 pin39, C112 change or resolder

YES
U800 CHECK pin 8 : 13MHz ? change or resolder Vp-p : 950mV?

NO

OSC801

YES
U800 pin1,2,3,28 Vp-p : 120mV ?

NO

U800 resolder or change

YES
U701 CHECK!!

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

2. DCS RX

CONTINUOUS RX ON RF INPUT : 698CH
NORMAL CONDITION catch the channel?

NO

CHECK ANT701,L905 contact ?

AMP : -50dBm

YES
F900 CHECK pin8 -65dBm ?

NO

C900, F901 resolder or change

YES
F900 CHECK pin4,5 -65dBm ?

NO

F900 resolder or change

YES
U800 CHECK pin18, 19 -65dBm ?

NO

C914,C915,L902 resolder or change

YES
U800 pin 9, 32: 2.8V ?

NO

U102 pin39, C112 change or resolder

YES

U800 CHECK pin 8 : 13MHz ?

NO

OSC801 change or resolder

Vp-p : 950mV?

YES
U800 pin1,2,3,28 Vp-p : 120mV ?

NO

U800 resolder or change

YES
U701 CHECK!!

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

3. EGSM TX
F900 pin 13 : about 2~3 dBm?

NO

F900 pin1 : 2.8 V?

NO

U702,U703 check & change

CONTINUS TX ON CONDITION
TX POWER DAC: 600 CODE APPLIED CH : 62 RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF LEV. : 10dBm

YES YES
F901, C900,L905 check&change U900 pin12 :

NO

about 4~5dBm?

YES
F900 check & change

ATT. : 20dB

U900 pin8,20 : 3.7 V?

NO

BATTERY, U102 check & change

YES
U900 pin 22 : 1.6V ?

NO

U701 check

YES NO
U900 pin6 about : -5dBm ?

YES
U900 pin 2 : 3V?

NO

YES
U900 change or resolder U701 check

NO

U800 pin9,32 : 2.8V ?

YES

U800 U102 pin39, C112 change or resolder pin8 : 13MHz ?

NO

OSC801 change or resolder

Vp-p : 950mV?

YES NO

U800 pin4,5,6,7:100mV?

YES
U701 U800 change or resolder change or resolder

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

5. DCS TX
F900 pin 13 : about 2~3 dBm?

NO

F900 pin6 : 2.8 V?

NO

U702,U703 check & change

CONTINUOUS TX ON CONDITION CH : 698CH(DCS) TX POWER CODE: 520 CODE Aplied

YES YES
F901, C900,L905 check&change U900 pin11 :

RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF LEV. : 10dBm

NO

about 4~5dBm?

YES
F900 check & change

ATT. : 20dB

U900 pin8,20 : 3.7 V?

NO

BATTERY, U102 check & change

YES
U900 pin 22 : 1.4V ?

NO

U701 check

YES NO
U900 pin5 about : -5dBm ?

YES
U900 pin 2 : 3V?

NO

YES
U900 change or resolder U701 check

NO

U800 pin9,32 : 2.8V ?

YES

U800 U102 pin39, C112 pin8 : 13MHz ? change or resolder Vp-p : 950mV?

NO

OSC801 change or resolder

YES NO
U800 pin4,5,6,7:100mV?

YES
U701 U800 change or resolder change or resolder

2-14

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

(Picture 1)
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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

(Picture 2)

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SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams

(Picture 3)
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3. SGH-E300 Exploded View and its Parts list
1. Cellular phone Exploded View

QFR01

QFU01 QVO01

QKP01

QCA01

QMP01 QLC66 QVK01 QMI01 QAN01 QME02 QIF02 QSP01 QMO02

QCK01

QRE01 QFL01

QCR06 QSC03 QRF01 QCR04 QSC05 QSC08 QBA21 QMW01

3-1

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SGH-E300 Exploded view and its Part list

2. Cellular phone Parts list Location NO.
QFU01 QLC66 QSP01 QMO02 QCA01 QCR04 QSC05 QSC08 QFL01 QMW01 QFR01 QVO01 QKP01 QMP01 QVK01 QME02 QMI01 QIF02 QCK01 QAN01 QRE01 QRF01 QCR06 QBA21

Description
F/UPPER ASSY LCD SPEAKER MOTOR CAMERA SCREW SCREW SHEET-L SCREW SHEET-R F/LOWER ASSY LCD WINDOW ASSY FRONT ASSY VOLKEY KEYPAD ASSY PBA MAIN UNIT VOLKEY UNIT METAL DOME MICROPHONE ASSY IF COER CAMKEY ANTENNA REAR COVER RF COVER SCREW BATTERY

SEC CODE
GH75-04391A GH07-00552A 3001-001484 3101-001328 GH59-01102A 6001-001479 GH74-06866A GH74-06867A GH75-04392A GH75-03874A GH75-03867A GH75-04736A GH75-03939A GH92-01581A GH59-01016A GH59-01097A GH30-00062A GH73-01394A GH75-04735A GH42-00362A GH75-03868A GH72-14790A 6001-001155 GH43-01234A

Remark

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SGH- E300 Exploded view and its Part list

3. Test Jig (GH80-00865A)

3-1. RF Test Cable (GH39-00090A)

3-2. Test Cable (GH39-00127A)

3-3. Serial Cable

3-4. Power Supply Cable

3-5. DATA CABLE (GH39-00159A)

3-6. TA (GH44-00184A)

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4. SGH-E300 MAIN Electrical Parts List
SEC Code
GH92-01581A 0403-001427 0406-001150 0406-001150 0406-001150 0406-001150 0406-001150 0406-001150 0406-001150 0406-001184 0501-000225 0502-001201 0504-000168 0504-001042 0506-001052 0601-001790 0601-001790 0601-001790 0601-001790 0601-001790 0601-001790 0604-001261 1001-001183 1009-001010 1109-001281 1201-002078 1203-002127 1203-002861 1203-002902 1204-001984 1204-002161 1209-001219 2007-000070 2007-000138 2007-000140 2007-000140 2007-000140 V302,ZD205 V301,ZD201,ZD202 ZD203,ZD204,ZD301 ZD302,ZD303,ZD304 ZD305,ZD306,ZD307 ZD308,ZD309,ZD310 ZD311,ZD312,ZD401 ZD402,ZD403,ZD404 V307 Q401 Q100 Q103,Q104 U702,U703 Q102 LED201,LED202,LED203 LED204,LED205,LED207 LED208,LED210,LED211 LED212,LED213,LED214 LED218,LED219,LED220 LED221,LED222 LED217 U401 U202 U500 U900 U101 U1002 U102 U701 U402 U602 L905 R804 R304,R305,R306,R307 R308,R309,R310,R312 R313,R420,R424
4-1

Design LOC

SEC Code
2007-000141 2007-000148 2007-000148 2007-000154 2007-000157 2007-000157 2007-000159 2007-000161 2007-000162 2007-000162 2007-000164 2007-000170 2007-000171 2007-000171 2007-000171 2007-000171 2007-000171 2007-000172 2007-000172 2007-000172 2007-000758 2007-000775 2007-001288 2007-001291 2007-001313 2007-001319 2007-001323 2007-001325 2007-007008 2007-007139 2007-007142 2007-007200 2007-007306 2007-007308 2007-007766 2203-000233 2203-000233

Design LOC
R413,R415 R1001,R1002,R112 R408,R416,R423 R419 R301,R302,R303,R501 R601,R604,R605,R314 R411,R418 R405 R1011,R1021,R402 R701,R704,U1006 R404 R603 R1008,R101 R1014,R1019 R1020,R105,R107 R500 R502 R1003,R110,R201,R202 R401,R403,R425,R503 R602,R801 R106 R406 R900,R905 R203 R803 R111 R104 R410 R902,R903,R907,R908 R103 R102,R606 R702,R703 R904 R607,R608 R802 C1011,C1013,C118 C429,C801,C802

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SGH-E300 Electrical Parts List

SEC Code
2203-000233 2203-000233 2203-000254 2203-000254 2203-000254 2203-000254 2203-000254 2203-000254 2203-000254 2203-000359 2203-000438 2203-000438 2203-000628 2203-000679 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000940 2203-000995 2203-001153 2203-001383 2203-001405 2203-001412 2203-001598 2203-001652 2203-002677 2203-005061 2203-005061 2203-005061 2203-005061 2203-005065 2203-005138 2203-005234 2203-005480 C916 C1017

Design LOC
C803,C811,C812,C813

SEC Code
2203-005482 2203-005482 2203-005496 2203-005509 2203-005509 2203-005571 2203-005682 2203-005682 2203-005682 2203-005682 2203-005682 2203-005682 2203-005682 2203-005682 2203-005682 2203-006053 2203-006053 2203-006257 2404-001086 2404-001105 2404-001151 2404-001225 2404-001268 2703-001513 2703-002485 2703-002608 2703-002207 2801-003856 2804-001577 2809-001260 3705-001287 3709-001229 3710-001816 3711-005212 3722-002082 4302-001130 1205-002433
4-2

Design LOC
C1009,C1014,C614 C1019,C1020,C108 C601,C602,C704 C203,C503,C504,C505 C506 C1022 C209,C211,C212,C213 C217,C218,C220,C222 C223,C225,C226,C227 C230,C232,C234,C235 C236,C237,C238,C239 C240,C241,C243,C244 C246,C247,C248,C249 C251,C252,C254,C256 U1005 C1012,C112,C109 C116,C117,C1001 C204 C405,C413 C106 C431,C909,C910 C1021 C107 L402,L403 L901 L902 C904 OSC601 OSC1000 OSC801 F901 CN101 CN300 CN201 CN400 M101 U800

C1005,C1010,C115 C201,C202,C430,C502 C603,C604,C605,C606 C611,C612,C707,C710 C711,C712,C804,C805 C806,C807,C905,C907 C401 C416,C425,C426,C901 C902 C613,C615 C610 C101,C104,C105 C207,C208,C214,C215 C216,C219,C221,C231 C242,C253 C255,C305,C809 C906,C919 C433 C808,C900,C903 C424 C918 C403,C609,C810 C415 C103,C114 C110,C113 L903 C102,C205,C206,C301 C302,C303,C304,C402 C404,C409,C417,C507 C608,C706,C432 C410,C423,C705 C233,C250 C912,C913,C914,C915 C607,C708,C709

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SGH-E300 Electrical Parts List

SEC Code
GH09-00025A U601 GH13-00020A U1001 NEW-F000001 F900

Design LOC

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5. SGH-E300 Block Diagrams
1. RF Solution Block Diagram Antenna CSP1093 L PGA RF FILTER A DCS:1805MHz~1880MHz RF FILTER / 2 100KHz N PGA A D C R X A D C CHANNEL FILTER PGA D A C PGA D A C I,Q TRIDENT

GSM:925MHz~960MHz

Si 4205
SERIAL ASM SERIAL DATA INTERFACE DATA, CLK, LE

DSP16000

ARM7TDMI

GSM:890MHz~915MHz D E T PAM T X

I,Q

DCS:1710MHz~1785MHz

TCVCXO 13 MHz IF PLL C L K A F C

RF PLL

UI
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SGH-E300 Block Diagrams

2. Base Band Solution Block Diagram

POWER (DC/DC,CHARGER, SIM)

X-TAL 13MHz

GPRS TRIDENT ACC DSP16000 RS232 PPI (Programmable Peripheral I/O) GPIO ARM7TDMI IO RWN AB[8:0] DB[15:0] INT1 IRQx PAx RSTB CSP1093 IO RWN AB[8:0] DB[15:0] INT1 IRQx PAx RSTB JTAG TXI/Q RX I/Q TXP SERCK SERLE SERDA OCTL DAICK DAIRN DAIDO DAIDI Audio Part DAI TXIP TXIN TXQP TXQN RXIP RXIN RXQP RXQN SERCK SERLE SERDA RFOVL TXP OCTL

RF SOLUTION RF IC PAM MAIN VCO TX VCO IF VCO

X-TAL 32.768KHz ARM JTAG/ICE

RTC EMI LCD

DSPJTAG

JTAG/ICE

KEYBOARD

Audio FLASH ROM (64M) SRAM (16M) FLASH ROM (64M) SRAM (16M) B'D B'D conn. LCD Keypad CAMERA Memory part

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6. SGH-E300 PCB Diagrams
1. Main Top Diagram

C1013
C1020
C244 C254 C256 C243 C239 C240 C220 C218 C217 C241 C225 C248 C226 C227 C251 C252 C230

C1012 C1010 C1014

R1022

CN201

OSC1000

U1001
R1001
C1011 C1009

C238 C222 C232

U1005

C247 C213 C246 C236 C223 C209 C237 C249

C235 C211

C1019
C234

C424 C406

R202 C202 C201 R201

R1002

R1020 R1019

CN400

ZD403
C432

R416R418

C1022 C1021 R1003
C1001
TP103

C1005

ZD402
C905

C423

C705

Q401

R902 R907

C809 C808

L403

R1021 C1017

R310 R308 C305 C303

R419

ZD404
C426

C918 C903

C916

C910
R908 R905 R900 R903 C906 C919 C907

U602

C425

R415

C410
C434

OSC601
C501 C505 C503 C500 R102 C506

V302

R424

U900

C806

R402

C807 R801

R423 R420

C431
C409 R410 C416

R105

ZD401 C433

R101

R313 R708 R709 R312 R309 R706

OSC801

C109 C110 C112 C113

C405

C902 R704 C901 R701
U1007

R404 C403

C917
C900 C904

R904
C813 C812 C811 C810

C402

R110 C115 C101 R106 C108 R107

C909
L903

Q103

CN101

C401 R405

C119

C106

U402

F901

C805 R804

Q100 U101
C107

R104

R406

R302 R301 R303 R307 R707 R306 R314 R305 R304 C304

U703

U702

U102
C116 C117
R1014

F900

U800

L905

C911

ANT701

G2

C114

C203 R203

C204

C913 C912

L901

C413

C417

L900

C915 C914

R425 C430

C118

C804

LED217

C103

C102 C105 C104

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G3

L902

TP104

C301

C429

C613 C615

CN300

R413 C710 C412 R411 R408

U1002

C704

L402

R500 R604

U500

C709 C706 C711 R702 C701 R703 C712

C708

U601

C212

R503

R502

C502 R111 C504 R501 C507

G4
C302

U1006

R602 C612 R606 C614 R607 R608

R1011

R1008

C707 C803 R803 C801 R802 C802

TP102

C608 C606

C604 C609

M101

PWM

ZD205

G1

U701

V307

C601 C602 C607 R603 R601 R605 C610 C611 C603 C605

C206

C242 C221 C219 C215 C207 C208

U401

LED220

C214

LED202 LED210

UP
RIGHT

F1 I
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LEFT

C205

C250 C231 C233
C404R403 R401

C255 C253 C216

U202

F2
END_PWD

CN203
ZD201
LED208 LED201

SEND

DOWN

CLEAR
LED213

2
LED203 LED207

TP602

4 5
LED222
LED214

6
LED221
LED211

7
LED204

8
LED205

9 0 F4

F3
TRST_1 TDI_1 TMS_1 TCK_1 F_WE_1 ND_2 TDO_1 G

Q104

2. Main Bottom Diagram

ZD312 ZD307 ZD308 ZD303

C415 C411

SGH-E300 PCB Diagrams

Q102

MIC401

R112

ZD306 ZD305 ZD304 ZD302

ZD311 ZD310 ZD309 ZD301 V301

R103

LED212

1

3

6-2

LED219 LED218

SIDE

ZD202

ZD203

ZD204

ELECTRONICS

Samsung Electronics Co.,Ltd. AUG..2004

Printed in Korea.
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.

Code No.: GH68-05427A BASIC.