Samsung SGH-X150 Manual de usuario

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

Samsung Electronics Co.,Ltd.

Code No.: GH68-08702A

2005. 11. Rev.1.0

ⓒ

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.

1. SGH-X150 Specification

1-1

1-1. GSM General Specification

GSM900

Phase 1

EGSM 900

Phase 2

DCS1800

Phase 1

Freq. Band[MHz]

Uplink/Downlink

890~915

935~960

880~915

925~960

1710~1785

1805~1880

ARFCN range 1~124 0~124 &

975~1023 512~885

Tx/Rx spacing 45MHz 45MHz 95MHz

Mod. Bit rate/

Bit Period

270.833kbps

3.692us

270.833kbps

3.692us

270.833kbps

3.692us

Time Slot

Period/Frame

Period

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

Modulation 0.3GMSK 0.3GMSK 0.3GMSK

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

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

Sensitivity -102dBm -102dBm -100dBm

TDMA Mux 8 8 8

Cell Radius 35Km 35Km 2Km

SGH-X150 Speclflcation

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±3dBm

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±4dBm

12 6±4 dBm

13 4±4 dBm

14 2±5 dBm

15 0±5 dBm

2. SGH-X150 Flow Chart of Troubleshooting

2-1

2-1. BASEBAND

2-1-1. Power ON

check the current

consumption

>= 100mA

Download again

'Power ON' does not work

Yes

END

Yes

Check the Initial Operation

Yes

Charge the battery

Check the Voltage

of the Battery

>= 3.3V

check keypad

Check the pin C152,

C153,C155,C168 of

U107 is

>=2.8V

Check

"Power On"

key?

check U107 and C153

Yes 1

Check the clock signal

at pin #3 of OSC100

Freq=26Mhz,

No Check the clock generation

circuit OSC100

Yes

SGH-X150 Flow Chart of Troubleshooting

2-2

C153

J13

VDD12

C11

VDD34

K14

SIM_CLK

J11

SIM_IO K11

SIM_RST

UP_CLK

P10

UP_IO

R10

UP_RST

F4 DB8

F1 DB9

F2 DB10

F3 DB11

E2 DB12

E3 DB13

D3 DB14

D2 DB15

C162

C152

VBAT

VRF_2.9V VCCD_2.9VVCCA_2.9V

C155

SIM_IO

SIM_RST

SIMCLK

SIMDATA

SIMRST

SIM_CLK

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)

SGH-X150 Flow Chart of Troubleshooting

2-3

2-1-2. Initial

Initial Failure

check the pin

RSTB of UCP200

is LOW?

Check UCP200

Yes

END

Yes

Check the Initial Operation

Yes

Check R177,R131,C127

check the pin CKI

of UCP200 is

13Mhz?

Check the clock

signal at pin #3 of

OSC100

Freq=26Mhz?

No check OSC100

Check the pin #9 of

U102 is HIGH and pin

#11, #13 is 2.9V?

No Check U107

Yes

SGH-X150 Flow Chart of Troubleshooting

2-4

VCCD_1.8V

C200

VCCD_2.9V

C203

C201 C202

TCK H13

TDI H12

F12

TDO

G12

TMS

TRST F15

VRTC_3V

VCCD_1.8V VCCD_2.9V

VREF

TR_RST

CLK13M_TR

R133

R131

R177

C127

C129

13M_OUT CLK13M_MC

CLK13M_TR

SGH-X150 Flow Chart of Troubleshooting

2-5

2-1-3. Sim Part

"Insert SIM" is displayed on the LCD

Is there any signal

pin #2,3,4 of

SIM100?

Check the U107

Check the U107 & UCP200

END

Yes

Check the SIM Card

The voltage is 2.8V

at the pin#1 of

SIM100

C140 C141 C142

C138 C139

SIM100

SIM_IO

SIM_RST

VSIM

SIM_CLK

SGH-X150 Flow Chart of Troubleshooting

2-6

2-1-4. Microphone Part

* Call with Sim before testing.

Check the soldered

status of microphone

MicroPhone does not work

Resolder microphone

END

Yes

Check the reference

voltage on mic path

R169 ≒2.0V

Yes

Resolder or change

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

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

Is microphone OK?

Yes

Check U107

C158

C160

R168

R152

C161

R148

MIC100

TA185

R169

C156

R149

C157

R153

R151

R150

MIC+

MICOUTP

MICINP

MICINN

MICOUTN

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