Samsung SGH-X150 Service Manual

GSM TELEPHONE

SGH-X150

GSM TELEPHONE

CONTENTS

1. Specification

2. Flow Chart of Troubleshooting

3. Exploded Views and Parts List

4. Electrical Parts List

5. PCB Diagrams

6. Block Diagrams

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.

ⓒ

Samsung Electronics Co.,Ltd.

Code No.: GH68-08702A

2005. 11. Rev.1.0

1. SGH-X150 Specification

1-1. GSM General Specification

GSM900 Phase 1

Freq. Band[MHz]

Uplink/Downlink

ARFCN range 1~124

Tx/Rx spacing 45MHz 45MHz 95MHz

Mod. Bit rate/

Bit Period

Time Slot

Period/Frame

Period

Modulation 0.3GMSK 0.3GMSK 0.3GMSK

MS Power 33dBm~13dBm 33dBm~5dBm 30dBm~0dBm

890~915 935~960

270.833kbps

3.692us

576.9us

4.615ms

EGSM 900

Phase 2

880~915 925~960

0~124 &

975~1023

270.833kbps

3.692us

576.9us

4.615ms

DCS1800

Phase 1

1710~1785 1805~1880

512~885

270.833kbps

3.692us

576.9us

4.615ms

Power Class 5 p cl ~ 1 5 p cl 5pcl ~ 19pcl 0pcl ~ 15pcl

Sensitivity -102dBm -102dBm -100dBm

TDMA Mux 8 8 8

Cell Radius 35Km 35Km 2Km

1-1

SGH-X150 Speclflcation

1-2. GSM Tx Power Class

TX Power

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±3dBm

18 7±3 dBm

19 5±3 dBm

GSM900

TX Power

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±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

DCS1800

1-2

15 0±5 dBm

2. SGH-X150

Flow Chart of Troubleshooting

2-1. BASEBAND

2-1-1. Power ON

'Power ON' does not work

check the current

consumption

>= 100mA

Yes

Check the Voltage

of the Battery

>= 3.3V

Yes

Check the pin C152,

C153,C155,C168 of

U107 is

>=2.8V

Yes

Check the clock signal

at pin #3 of OSC100

Freq=26Mhz,

No

Download again

Charge the battery

Check

"Power On"

key?

Yes

Check the clock generation

circuit OSC100

No

check U107 and C153

check keypad

2

1

Yes

Check the Initial Operation

Yes

END

2-1

SGH -X1 50 Flow Chart of Troubleshooting

VRF_2.9V VCCD_2.9VVCCA_2.9V

C152

C153

VBAT

C155

DSP_DB(0:15)

DSP_DB(15) DSP_DB(14) DSP_DB(13) DSP_DB(12) DSP_DB(11) DSP_DB(10) DSP_DB(9) DSP_DB(8)

0

1

8

9

J

K

J

2

J

1

6

7

5

4

6

5

1

C

S

N

D

N

G

D2

DB15

D3

DB14

E3

DB13

E2

DB12

F3

DB11

F2

DB10

F1

DB9

F4

DB8

G

0

8

9

1

9

8

7

6

7

H

J

2

3

1

S

D

N

G

H

G

H

G

1

0

7

8

9

6

1

S

D

N

G

3

0

7

1 F

G

4

5

S

D

N

G

4

1

9

8

7

F

B

D

F

3

2

1

8

L

S

T

C

D

C

N

O _

G

D N G

0

1

3

1

4

6

2

1

C

P

L

V

T

D

C

N

O

G

_ D D V

6

1

6

L

P

A

R

N

F

M

4

V D D V

3

B

D

B

D

S

D

S

D

N

V

G

3

5

4

6

3

4

J

N

G

K

N

M

1

2

1

2

3

1

2

S

D

O

I

S

D

_

V

D

V

0

3

5

1

8

1

C

B

K

B

F

E

7

5

2

1

R

Q

6

C

D

U

D

S

C

N

P

H

G

_

D

N

G

D D V

VDD34

D V

VDD12

UP_CLK UP_RST

UP_IO

SIM_IO SIM_RST SIM_CLK

C11 J13

N9 R10 P10 J11 K11 K14

C162

SIMCLK SIMRST SIMDATA SIM_IO SIM_RST SIM_CLK

1

2

2-2

2-1-2. Initial

SGH-X1 50 Flow Chart of Troubleshooting

Initial Failure

check the pin

RSTB of UCP200

is LOW?

Yes

check the pin CKI

of UCP200 is

13Mhz?

Yes

Check the clock

signal at pin #3 of

OSC100

Freq=26Mhz?

Yes

No

Check UCP200

1

Check R177,R131,C127

check OSC100

3

2

Check the pin #9 of

U102 is HIGH and pin

#11, #13 is 2.9V?

Yes

Check the Initial Operation

Yes

END

2-3

No

Check U107

4

SGH -X1 50 Flow Chart of Troubleshooting

C129

VRTC_3V

F12

TDO

F15

TRST

H12

TDI

G12

TMS

H13

TCK

C127

C202

CLK13M_TR

R131

R177

13M_OUT CLK13M_MC

VCCD_1.8V

VCCD_1.8V VCCD_2.9V

6

7

3

2

3

1

5

6 F

A

S

V

1

A

C

A

R

S

D

S

D

V

1

4

1

G

R

T

D

V

C200

4

7

6

1

2

B

E

D

V

C201

6

5

6 1 N

E

D

V

1

2

1

8

M

B

U

P

U

E

D

V

6

5

1

G

E

L

P

D

_

_ S

D

S

D

V

R133

VCCD_2.9V

1

0

8

1

D

E

F

C

F

C

A

E

T

S

D

R

S

D

V

X

7 1 F

I K C

C203

2 1 C

B T S R

VREF CLK13M_TR TR_RST

TR_RST

4

3

2

1

2-4

2-1-3. Sim Part

"Insert SIM" is displayed on the LCD

SGH-X1 50 Flow Chart of Troubleshooting

The voltage is 2.8V

at the pin#1 of

SIM100

Yes

Is there any signal

pin #2,3,4 of

SIM100?

Yes

Check the SIM Card

END

No

Check the U107

Check the U107 & UCP200

1

2

VSIM SIM_RST SIM_CLK

C138

SIM100

D

C

K

P

N

L

P

C

C V

1

C140 C141 C142

C139

O

/

I

G

C

V

2

7

6

4

3

5

C

N

0

8

9

1

SIM_IO

1

2

2-5

SGH -X1 50 Flow Chart of Troubleshooting

2-1-4. Microphone Part

* Call with Sim before testing.

MicroPhone does not work

Yes

Check the soldered

status of microphone

Yes

Check the reference

voltage on mic path

R169≒2.0V

Yes

Is microphone OK?

Yes

END

No

Resolder microphone

Resolder or change

R169,TA185,R148,R149,R150,R151,

R152,R153,C156,C157,C158,C160,C161

No

Check U107

1

2

MICINP

MICOUTP

MICINN

MICOUTN

R151

R153

R168

R150

R152

C156

C158

R148

2-6

R149

C157

C161

C160

MIC100

1

2

MIC+

R169

TA185

Samsung SGH-X150 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual