Samsung SGH-M300 User manual

GSM TELEPHONE
SGH-M300
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
GSM TELEPHONE 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

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
1-1. GSM General Specification
GSM 900
Phase 1
EGSM 900
Phase 2
DCS1800
Phase 1
Freq. Band[MHz]
Up l i nk/Downli n k
890~915
935~960
880~915
925~960
1710~1785
1805~1880
AR F C N r a nge 1~ 12 4 0~ 124 &
975~1023 512~885
Tx/ Rx s p acing 45 M H z 45 M Hz 95 M H z
Mod . Bi t r a te/
Bi t Peri od
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
Tim e Sl o t P e rio d/Frame
Pe riod
576.9 us
4. 61 5 m s
576.9 us
4. 61 5 m s
576.9 us
4. 61 5 m s
Mod ula ti on 0. 3 GMSK 0.3 GM SK 0.3 GMSK
MS Pow e r 33 dBm ~ 1 3 d Bm 33 d B m ~ 5 dBm 30 d B m ~ 0 dBm
Po w e r Cl a ss 5 pcl ~ 15 pcl 5 pcl ~ 19 pcl 0 pcl ~ 15 pcl
Se ns i ti vity -102 dBm -1 0 2 dB m -1 00 dBm
TD M A M u x 8 8 8
Cel l R a d iu s 35 Km 35 K m 2 Km

Specification
1-2
1-2. GSM TX power class
TX Power
control level GSM900
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
control level DCS1800
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

SAMSUNG Proprietary-Contents may change without notice
2. Exploded View and Parts List
2-1
This Document can not be used without Samsung's authorization
2-1. Cellular phone Exploded View
QFR01
QKP01
QMP01
QAN02
QRE01
QVO01
QBA01
QFU01
QLC01
QMW01
QCA01
QHI01
QFL01
QRF03
QAN10
QME01
QSH01
QRF01
QMI01
QCR12
QCR12
QCR12
QSP01
QMO01
QSC01

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-
2
This Document can not be used without Samsung's authorization
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
2-2. Cellular phone Parts list

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-3
This Document can not be used without Samsung's authorization
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

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-
4
This Document can not be used without Samsung's authorization
2-3. Disassembly
1
43
2
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.
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.
1) Disjoint from left low side to up side of rear
case as below picture.
caution
1) When you disjoint arear case, be care of
Shooting out damage and scratch not to occur.
(1) (2) (3)

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-5
This Document can not be used without Samsung's authorization
5
87
6
1) Remove screw cover using tweezers.
2) Unscrew at the folder upper using ascrewdriver
caution
1) Be care of Shooting out damage and scratch
not to occur.
1) After disjoint the hooker of the lower side,
disassemble the LOWER case as below the
picture.
caution
1) Be care of Shooting out damage and scratch
not to occur.
1) Disconnect the LCD connecter and Disjoint the
B'd
2) Remove the dust protection tape
caution
1) Be care of Shooting out damage and scratch
not to occur.
2) Pay attention not to damage for LCD FPCB.
1) Pressing the hinge using the rounded tweezers
or sort of thing, disjoint FRONT.
caution
1) Be care of Shooting out damage and scratch
not to occur.
Press the
hinge
(1)
(2)
(3)

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-
6
This Document can not be used without Samsung's authorization
910
1) Remove the Speaker/Motor in the LOWER.
2) Remove the LCD in the LOWER.
caution
1) Be care of Speaker/Motor wire cracking or
damage.
1) Check the separated plastics.
caution
1) Check all of the material is taped.

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-7
This Document can not be used without Samsung's authorization
1
43
2
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.
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.
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.
2-4. Assembly
Arrange
the wire

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-
8
This Document can not be used without Samsung's authorization
5
87
6
1) Joint the shield can right hook and
hole of the B'd.
2) Screw the left hall of the B'd.
caution
1) Pay attention not to damage for LCD FPCB.
1) Joint the FRONT upper hook and B'd and
arrange the B'd, FRONT.
2) Attach the Volume Key.
caution
1) Pay attention not to damage for LCD FPCB.
2) Confirm B'd is attached completely on the
FRONT.
1) Attach anti-dust TAPE
2) Let a KEY PAD on front assy.
caution
1) Be care of Shooting out damage and scratch
not to occur.
2) Pay attention not to damage for LCD FPCB.
1) Lock aLCD CONNECTOR to PBA
caution
1) Assemble the LCD connect horizontally.
2) Pay attention not to damage for LCD FPCB.
Scwering
joint the
hook
oint the
hook

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-9
This Document can not be used without Samsung's authorization
910
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.
1) Screw 4point on REAR assy'.
2) Attach the RF COVER.
caution
1) Be care of Shooting out damage and scratch
not to occur.
Joint REAR case
and FRONT case.

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
2-
10
This Document can not be used without Samsung's authorization
1
43
2
1) Attach conduction tape on the left and right
side of LCD.
2) Attach isolation tape on the left and right side
of LCD.
caution
1) When you attach the tape, be careful of a base
line of a picture.
1) Attach the SPONGE along the line.
2) Attach the isolation tape along the line.
caution
1) When you attach the tape, be careful of a base
line of a picture.
1) Attach CAMERA CONNECTOR sticky isolation
tape.
caution
1) When you attach the tape, be careful of abase
line of a picture.
1) Attach the GASKET on the LCD CONNECTOR
caution
1) When you attach the tape, be careful of a base
line of apicture.
(Tape should be in the LCD connect.)
2-5. LCD KIT ASSEMBLING
Attach
conductive
Tape
Attach
isolation Tape
Taping silk
line
Taping silk
line
camera connect
sticky isolation
Tape

SAMSUNG Proprietary-Contents may change without notice
3. Flow Chart of Troubleshooting
3-1
This Document can not be used without Samsung's authorization
3-1.Baseband
3-1-1. Power ON
'Power On' does not work
Voltage >=3.3V
Download again
Charge the Battery
Pin#J12 >= 2.8V Check UCP301 and C313
Pin#A13 and pin#A14
=2.8V Check UCP301 and C314
Freq = 26MHz
Vrms >=300mV
Vpp 900mV
Check the clock generation circuit
(related to OSC101)
Check the initial operation
END
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#G11 = 1.8V
No
Yes
Check the current consumption
Check the Vbat Voltage
Check the pin of UCP301
Check the clock signal at pin#30 #31 of U101
Current consumption
>= 100mA
Freq = 13Mz
Check the clock signal at pin#8 of U101
Yes
Check U101
No

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-2
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-3
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-4
This Document can not be used without Samsung's authorization
GND1
2
4
GND2
1
HOT
HOT
3
C104
OSC101
C110
R104
R107
R103
C123C121
R105
C122
C119
C102
R108
C108
C105
R102
8
31 30
910
VRF_2.9VVCCD_2.9V
13
2829
11
2632 25
XOUT
RFIEN
21
RFIEP
18
RFIPN
17
RFIPP
16
15
1SCLK
3SDIO
12
33
3435
24
RFIAN
23
RFIAP
20
RFIDN
19
RFIDP
22
U101
27
BIN
6
7BIP
4BQN
5BQP
14
CLK13M_MC
CLK13M_AIT701X
RTX_IP
XOENA
GSM_LNA_IN_N
GSM_LNA_IN_P
CLK13M_YMU
CLK13M_TR
DCS_LNA_IN_P
DCS_LNA_IN_N
RF_EN
DPCS_PAM_IN
GSM_PAM_IN
AFC
SERDAT
RTX_QN
RTX_QP
RTX_IN
SERCLK
SERLE
PCS_LNA_IN_P
PCS_LNA_IN_N

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
3-5
This Document can not be used without Samsung's authorization
3-1-2. Initial
Initial Failure
The pin #G11 of UCP301 =
1.8V and
the pin #J12 of UCP301 =
2.8V ?
Check the UCP301
(if it has some problem, it is to be replaced.)
Yes
No
Is the pin #K9 of UCP301
"Low High" ?
Yes
No Check the UCP301
(if it has some problem, it is to be replaced.)
There is 32.768kHz wave
forms at the C223 and C224
Yes
No
Check the UCP201
Is the pin #G4 of UCP201
is "High"
The voltage is "High" at the
C311,C312,C313 Check the UCP301
Check the UCP201
LCD display is O.K
No
No
Yes
Yes
Yes
Check the LCD part
No
Sound is O.K
Yes
No
Check the Audio part
END
Yes