Samsung SGH-C240 service manual.pdf

GSM TELEPHONE 

SGH-C240 

GSM TELEPHONE CONTENTS 

1. Safety Precautions 

2. Specification 

3. Product Function 

4. Array course control 

5. Exploded View and Parts List 

6. MAIN Electrical Parts List 

7. Block Diagrams 

8. PCB Diagrams 

9. Flow Chart of Troubleshooting 

10. Reference data


CONTENTS 

1-1. Repair Precaution......................................................................................................1-1 

1-2. ESD(Electrostatically Sensitive Devices) Precaution...............................................1-2 


2-1. GSM General Specification.......................................................................................2-1 

2-2. GSM Tx Power Class...............................................................................................2-2 



4-1. Software Adjustments................................................................................................4-1 

4-2. Software Downloading...............................................................................................4-2 

5. Exploded View/Disassembly & Assembly Instructions 

5-1. Cellular phone Exploded View..................................................................................5-1 

5-2. Cellular phone Part list.............................................................................................5-2 

5-3. Disassembly & Assembly Instructions......................................................................5-4 

6. MAIN Electrical Parts List 


8. PCB Diagrams


CONTENTS 

9-1. Baseband 

9-1-1. Power On................................................................................................................9-1 

9-1-2. Initial........................................................................................................................9-3 

9-1-3. Sim Part..................................................................................................................9-5 

9-1-4. Microphone Part......................................................................................................9-7 

9-1-5. Speaker Part...........................................................................................................9-9 

9-1-6. LCD Backlight.......................................................................................................9-11 

9-2. RF 

9-2-1. GSM RX................................................................................................................9-12 

9-2-2. DCS RX................................................................................................................9-14 

9-2-3. GSM TX................................................................................................................9-17 

9-2-4. DCS Tx.................................................................................................................9-19 

10. Reference data


1-1. Repair Precaution 

● Repair in Shield Box, during detailed tuning. 

Take specially care of tuning or test, 

because specipicty of cellular phone is sensitive for surrounding interference(RF noise). 

● Be careful to use a kind of magnetic object or tool, 

because performance of parts is damaged by the influence of manetic force. 

● Surely use a standard screwdriver when you disassemble this product, 

otherwise screw will be worn away. 

● Use a thicken twisted wire when you measure level. 

A thicken twisted wire has low resistance, therefore error of measurement is few. 

● Repair after separate Test Pack and Set because for short danger (for example an 

overcurrent and furious flames of parts etc) when you repair board in condition of 

connecting Test Pack and tuning on. 

● Take specially care of soldering, because Land of PCB is small and weak in heat. 

● Surely tune on/off while using AC power plug, because a repair of battery charger is 

dangerous when tuning ON/OFF PBA and Connector after disassembing charger. 

● Don't use as you pleases after change other material than replacement registered on SEC 

System. Otherwise engineer in charge isn't charged with problem that you don't keep this 

rules. 

1-1 

SAMSUNG Proprietary-Contents may change without notice 

This Document can not be used without Samsung's authorization

Safety Precautions 

1-2. ESD(Electrostatically Sensitive Devices) Precaution 

Several semiconductor may be damaged easilly by static electricity. Such parts are called by 

ESD(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below. 

You can prevent from ESD damage by static electricity. 

● Remove static electricity remained your body before you touch semiconductor or parts with 

semiconductor. There are ways that you touch an earthed place or wear static electricity 

prevention string on wrist. 

● Use earthed soldering steel when you connect or disconnect ESD. 

● Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by 

static electricity. 

● Don't unpack until you set up ESD on product. Because most of ESD are packed by box 

and aluminum plate to have conductive power,they are prevented from static electricity. 

● You must maintain electric contact between ESD and place due to be set up until ESD is 

connected completely to the proper place or a circuit board. 

1-2 




2-1. GSM General Specification 

Freq. Band[MHz] 

Uplink/Downlink 

GSM900 

Phase 1 

890~915 

935~960 

2-1 

EGSM 900 

Phase 2 

880~915 

925~960 

DCS1800 

Phase 1 

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 

Time Slot Period/Frame 

Period 

270.833kbps 

3.692us 

576.9us 

4.615ms 

270.833kbps 

3.692us 

576.9us 

4.615ms 

270.833kbps 

3.692us 

576.9us 

4.615ms 

Modulation 0.3GMSK 0.3GMSK 0.3GMSK 

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

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

Sensitivity -102dBm -102dBm -100dBm 

TDMA Mux 8 8 8 

Cell Radius 35Km 35Km 2Km

Speclflcation 

2-2. GSM Tx Power Class 

TX Power 

control level 

GSM900 

2-2 

TX Power 

control level 

DCS1800 

5 33±2 dBm 0 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 0±5 dBm


Main Function 

-Name card 

Create name cards with your number and profile. Whenever introducing yourself to 

others, use this convenient electronic name card. 

-Web browser 

Access the wireless web to get current information and up-to-the-minute a wide 

variety of media content. 

-Multimedia Message Service (MMS) 

Send and receive MMS messages with a combination of text, image, video, and 

audio. 

-E-mail 

Send and receive-emails with image, video,and audio attachments. 

-Java 

Enjoy Java-based embedded games and download new games. 

-Calendar 

Keep track of your daily, weekly, and monthly schedule. 

-Voice recorder 

Record memos or sounds. 

3-1 



Product Function 

3-2 




4-1. Software Adjustments 

TEST JIG (GH80-00865A) 

DATA CABLE 

(GH39-00127A) 

RF Test Cable 

(GH39-00283A) 

4-1 



Array course control 

4-2. Software Downloading 

4-2-1. Downloading Binary File 

• Binary file for downloading C240. 

– C240XXYY.s3 : Main source code binary. 

4-2-2. Pre-requsite for Downloading 

• Downloader Program(OptiFlash.exe) 

• C240 Mobile Phone 

• Data Cable 

• Binary file 

4-2-3. S/W Downloader Program 

1. Load the binary download program by executing the “OptiFlash.exe” 

2. Select the “Options” -> “Settings” -> “Generic” -> “Specify hardware platform”. 

Choose hardware platform for the downloader file setting. 

4-2 



Set the everything else as the default values which are shown below 

3. Select the COM port when the download cable is connected 

4-3 


This Document can not be used without Samsung's authorization 

Array course control


Up to twelve ports are supported. Additionally you can select the maximum 

transfer speed OptiFlash will use to communicate with the phone. However, 

OptiFlash will use a slower speed if either the PC’s or the phone’s serial 

hardware is incapable of handling the selected speed 

4. Select the“Flash&Verify” -> “Browse” 

Set the directory path and choose the latest s/w binary, for example 

“C240XXYY.s3”,for the downloader binary setting. 

Make sure that not to change the reserved memory regions. 

In case of C240 the reserved regions are : 

- 0x00c00000 - 0x00c9ffff 

4-4 



4-5 




5. Click “OK” button then press “Flash”. 

(Before pressing ‘Flash’ button, push the button ‘*’and ‘END’ at the same time. Then 

press ‘Flash’.) 

Downloader will upload the binary file as below for the downloading. 

6. When downloading is finished successfully, there is a “All is well” message. 

7. After finishing downloading, Certain memory resets should be done to guarantee the 

normal performance. 

8. Confirm the downloaded version name and etc. : 

*#5002*8376263# 

Full Reset : 

*2767*3855#


4-6 



5. Exploded View/Disassembly&Assembly Instructions 

5-1. Cellular phone Exploded View 

QMW02 

QFR01 

QAR01 

QLC01 

QMP01 

QAN05 

QSP01 

QAN02 

QSC01 

QRE01 

QRF01 

QRF03 

5-1 

QIF01 

QKP01 

QME01 

QMI01 

QMO01 

QCR06 

QBA01 

QBA00 



Exploded View/Disassembly&Assembly Instructions 

5-2. Cellular phone Parts List 

Design LOC Description SEC CODE 

QAN02 INTENNA-SGHC240 GH42-00891A 

QAN05 ASSY RUBBER-INTENNA CONTACT GH98-03564A 

QAR01 AUDIO-RECEIVER 3009-001214 

QBA00 PMO-COVER BATTERY V3 GH72-35740A 

QBA01 INNER BATTERY PACK-750MAH,BLK, GH43-02483A 

QCR06 SCREW-MACHINE 6001-001155 

QFR01 ASSY CASE-FRONT GH98-01615A 

QKP01 ASSY KEYPAD-(SER/SIL) GH98-01995A 

QLC01 LCD-LCD MODULE GH07-00928A 

QME01 UNIT-METAL DOME GH59-03278A 

QMI01 MICROPHONE-ASSY-SGHC240 GH30-00288A 

QMO01 MOTOR DC-SGHC240 GH31-00268A 

QMP01 PBA MAIN-SGHC240 GH92-02900A 

QMW02 PCT-COVER WINDOW MAIN GH72-34846A 

QRF01 MPR-TAPE SHEET RF COVER GH74-27237A 

QSC01 MPR-TAPE SHEET INTENNA COVER GH74-27823A 

QSP01 SPEAKER 3001-002018 

QRE01 ASSY CASE-REAR GH98-01616A 

QIF01 PMO-IF COVER V4 GH72-36725A 

QRF03 PMO-COVER EAR V4 GH72-35742A 

5-2 



5-3 


Description SEC CODE 

BAG PE 6902-000634 

ADAPTOR-SGHD500 TA GH44-01451A 

UNIT-EARPHONE(SIL) GH59-02472B 

LABEL(P)-WATER SOAK GH68-02026A 

LABEL(P)-WATER SOAK GH68-02026A 

MANUAL-SFC GH68-04336A 

LABEL(P)-BARCODE RUSSIA GH68-08494A 

LABEL(R)-MAIN(SER) GH68-11762C 

MANUAL USERS-EU RUSSIAN GH68-11868A 

BOX-UNIT(SER) GH69-04190B 

MPR-SPONGE INTENNA CARRIER GH74-27236A 

MPR-TAPE RECEIVER GH74-29274A 

MPR-TAPE EMI SHEET GH74-29420A 




5-3. Disassembly&Assembly Instructions 

― Disassembly 

1 2 

1. Loosen a screw this four point form Rear. 

2. And remove the IF cover. 

3 4 

1. Separate the PBA from front cover 

regard of 2 hooks and lift up. 

5-4 

1. Make the space between rear cover and 

front cover using assembly stick. 

2. And then widen space with hand and 

separate 2 parts. 

1. Remove the tape from front cover. 

2. And Remove the receiver from front cover 

using removing hole. 



5 6 

1. Loosen the 4 hooks of intenna carrier from 

PBA board and separate. 

7 

1. Remove the LCD module from PBA board 

using soldering tip. 

5-5 


1. And separate the LCD module from PBA 

board using removing hole with pinset. 

1. Verify all kinds of elements after finishing 

disassembling 



8


― Assembly 

1 2 

1.RemovethetapecoverandattachtheLCD 

FPCB to PBA board using 2 point of mark 

2. And soldering the module and attach the 

LCD module on PBA regarding guide hole. 

3 4 

5-6 

1. Assemble the intenna carrier to PBA board 

using hooks like picture. 

1. Insert the receiver to receiver hole and push. 1.InserttheupsideofPBAtofront 

2. Attach the Tape on receiver air hole like 2. And locking the hook like picture. 

apicture. 

3. Insert the mic in mic hole on front. 



5 6 

5-7 


1. Assemble the rear to front from top side. 1. Fasten the 4 point of screw like picture. 




5-8 



6. Electrical Parts List 

Design LOC Description SEC CODE STATUS 

ANT100 NPR-ANTENNA CONTACT GH71-04813A SA 

ANT101 NPR-ANTENNA CONTACT GH71-04813A SA 

BAT200 BATTERY-LI(2ND) 4302-001130 SA 

BTC800 HEADER-BATTERY 3711-006084 SA 

C101 C-CER,CHIP 2203-000995 SA 

C103 C-CER,CHIP 2203-002668 SA 

C113 C-CER,CHIP 2203-006048 SA 

C114 C-CER,CHIP 2203-000854 SA 

C115 C-CER,CHIP 2203-000278 SA 

C117 C-CER,CHIP 2203-000233 SA 

C123 C-CER,CHIP 2203-006048 SA 

C124 C-CER,CHIP 2203-000386 SA 

C125 C-CER,CHIP 2203-000812 SA 

C126 C-CER,CHIP 2203-006048 SA 

C127 C-CER,CHIP 2203-005234 SA 

C128 C-CER,CHIP 2203-005234 SA 

C129 C-CER,CHIP 2203-001017 SA 

C130 C-CER,CHIP 2203-005050 SA 

C131 C-CER,CHIP 2203-000278 SA 

C132 C-CER,CHIP 2203-005050 SA 

C135 C-TA,CHIP 2404-001474 SA 

C136 C-CER,CHIP 2203-006048 SA 

C137 C-CER,CHIP 2203-006048 SA 

C139 C-CER,CHIP 2203-000359 SA 

C141 C-CER,CHIP 2203-000585 SA 

C142 C-CER,CHIP 2203-006048 SA 

C143 C-CER,CHIP 2203-006048 SA 

C200 C-CER,CHIP 2203-000254 SA 

C201 C-CER,CHIP 2203-001072 SA 

C202 C-CER,CHIP 2203-006048 SA 

C203 C-CER,CHIP 2203-006324 SA 

C204 C-CER,CHIP 2203-000995 SA 

C205 C-CER,CHIP 2203-000812 SA 

C206 C-CER,CHIP 2203-000812 SA 

C207 C-CER,CHIP 2203-002709 SA 

C208 C-CER,CHIP 2203-006183 SA 

C209 C-CER,CHIP 2203-000233 SA 

C210 C-TA,CHIP 2404-001240 SA 

C211 C-CER,CHIP 2203-006183 SA 

C212 C-CER,CHIP 2203-006562 SA 

C213 C-CER,CHIP 2203-006562 SA 

C214 C-CER,CHIP 2203-006562 SA 

C215 C-CER,CHIP 2203-006562 SA 

C216 C-CER,CHIP 2203-006562 SA 

C217 C-CER,CHIP 2203-000254 SA 

C218 C-CER,CHIP 2203-002709 SA 

C219 C-CER,CHIP 2203-000254 SA 

C220 C-CER,CHIP 2203-005819 SA 

C223 C-CER,CHIP 2203-006348 SA 

C224 C-TA,CHIP 2404-001381 SA 

C300 C-CER,CHIP 2203-000254 SA 

C301 C-CER,CHIP 2203-000254 SA 

C302 C-CER,CHIP 2203-000254 SA 

C303 C-CER,CHIP 2203-000254 SA 

C304 C-CER,CHIP 2203-006260 SA 

6-1 



Electrical Parts List 


C305 C-CER,CHIP 2203-002709 SA 

C306 C-CER,CHIP 2203-000679 SA 

C307 C-CER,CHIP 2203-000254 SA 

C308 C-CER,CHIP 2203-002709 SA 

C309 C-CER,CHIP 2203-000254 SA 

C310 C-CER,CHIP 2203-000254 SA 

C311 C-CER,CHIP 2203-000254 SA 

C312 C-CER,CHIP 2203-000254 SA 

C313 C-CER,CHIP 2203-006260 SA 

C315 C-CER,CHIP 2203-000330 SA 

C316 C-CER,CHIP 2203-000330 SA 

C317 C-CER,CHIP 2203-006626 SA 

C400 C-CER,CHIP 2203-000330 SA 

C402 C-CER,CHIP 2203-006260 SA 

C404 C-CER,CHIP 2203-000995 SA 

C407 C-CER,CHIP 2203-006260 SA 

C408 C-CER,CHIP 2203-001153 SA 

C410 C-TA,CHIP 2404-001414 SA 

C411 C-CER,CHIP 2203-000233 SA 

C412 C-CER,CHIP 2203-006048 SA 

C413 C-CER,CHIP 2203-000330 SA 

C416 C-CER,CHIP 2203-000995 SA 

C417 C-CER,CHIP 2203-000278 SA 

C418 C-CER,CHIP 2203-006048 SA 

C419 C-CER,CHIP 2203-001153 SA 

C420 C-CER,CHIP 2203-001153 SA 

C422 C-CER,CHIP 2203-000254 SA 

C423 C-CER,CHIP 2203-001405 SA 

C500 C-CER,CHIP 2203-006466 SA 

C503 C-CER,CHIP 2203-000940 SA 

C504 C-TA,CHIP 2404-001381 SA 

C505 C-CER,CHIP 2203-002709 SA 

C506 C-CER,CHIP 2203-006091 SA 

C507 C-CER,CHIP 2203-006825 SA 

C508 C-CER,CHIP 2203-006165 SA 

C509 C-CER,CHIP 2203-005061 SA 

C511 C-CER,CHIP 2203-001072 SA 

C512 C-CER,CHIP 2203-001072 SA 

C513 C-CER,CHIP 2203-000585 SA 

C514 C-CER,CHIP 2203-002709 SA 

C515 C-CER,CHIP 2203-006260 SA 

C516 C-CER,CHIP 2203-000438 SA 

C517 C-CER,CHIP 2203-006824 SA 

C518 C-CER,CHIP 2203-002709 SA 

C519 C-TA,CHIP 2404-001240 SA 

C520 C-CER,CHIP 2203-006048 SA 

C521 C-CER,CHIP 2203-005482 SA 

C522 C-CER,CHIP 2203-006635 SA 

C523 C-CER,CHIP 2203-005993 SA 

C524 C-CER,CHIP 2203-006260 SA 

C525 C-CER,CHIP 2203-005481 SA 

C528 C-CER,CHIP 2203-005481 SA 

C529 C-CER,CHIP 2203-006260 SA 

C532 C-CER,CHIP 2203-005482 SA 

C534 C-CER,CHIP 2203-000995 SA 

6-2 



6-3 





C535 C-CER,CHIP 2203-006324 SA 

C537 C-CER,CHIP 2203-000679 SA 

C538 C-CER,CHIP 2203-000359 SA 

C601 C-CER,CHIP 2203-000233 SA 

C602 C-CER,CHIP 2203-002709 SA 

C603 C-CER,CHIP 2203-000233 SA 

C604 C-CER,CHIP 2203-002709 SA 

C605 C-CER,CHIP 2203-000254 SA 

C700 C-CER,CHIP 2203-006324 SA 

C701 C-TA,CHIP 2404-001450 SA 

C702 C-CER,CHIP 2203-006562 SA 

C800 C-NETWORK 2503-001053 SA 

C801 C-NETWORK 2503-001053 SA 

C802 C-NETWORK 2503-001053 SA 

C803 C-CER,CHIP 2203-000438 SA 

C804 C-TA,CHIP 2404-001381 SA 

C805 C-CER,CHIP 2203-000854 SA 

CON100 CONNECTOR-COAXIAL 3705-001358 SA 

D500 DIODE-ARRAY 0407-001002 SA 

D501 DIODE-TVS 0406-001223 SA 

D502 DIODE-TVS 0406-001223 SA 

D503 DIODE-TVS 0406-001223 SA 

D504 DIODE-TVS 0406-001223 SA 

EAR400 JACK-EAR PHONE 3722-002010 SA 

F100 DUPLEXER-ASM 2911-000067 SA 

F101 FILTER-SAW 2904-001744 SA 

F800 FILTER-EMI SMD 2901-001254 SA 

IFC800 CONNECTOR-INTERFACE 3710-001611 SA 

L102 R-CHIP 2007-000171 SA 

L103 INDUCTOR-SMD 2703-002269 SA 

L105 C-CER,CHIP 2203-000550 SA 

L106 C-CER,CHIP 2203-000995 SA 







L402 BEAD-SMD 3301-001729 SA 

L403 BEAD-SMD 3301-001729 SA 

L404 BEAD-SMD 3301-001729 SA 

L405 BEAD-SMD 3301-001729 SA 

L406 BEAD-SMD 3301-001729 SA 

L407 INDUCTOR-SMD 2703-001231 SNA 

L408 BEAD-SMD 3301-001729 SA 





L700 INDUCTOR-SMD 2703-002768 SNA 

L800 BEAD-SMD 3301-001659 SA 

LED700 LED 0601-002037 SA 

LED701 LED 0601-002037 SA 

LED702 LED 0601-002037 SA 

LED703 LED 0601-002037 SA



LED704 LED 0601-002037 SA 

LED705 LED 0601-002037 SA 

LED706 LED 0601-002037 SA 

LED707 LED 0601-002037 SA 

LED708 LED 0601-002037 SA 

LED709 LED 0601-002037 SA 

LED710 LED 0601-002037 SA 

MEM600 IC-MCP 1108-000010 SA 

OSC100 CRYSTAL-SMD 2801-004426 SA 

OSC300 CRYSTAL-SMD 2801-003856 SA 

PAM100 IC-POWER AMP 1201-002425 SA 

R100 R-CHIP 2007-001298 SA 

R101 R-CHIP 2007-002970 SA 

R104 R-CHIP 2007-000171 SA 

R105 R-CHIP 2007-002797 SA 

R106 R-CHIP 2007-000148 SA 

R107 R-CHIP 2007-001308 SA 

R108 R-CHIP 2007-000171 SA 

R111 R-CHIP 2007-000147 SA 

R200 R-CHIP 2007-000144 SA 

R201 R-CHIP 2007-000171 SA 

R203 R-CHIP 2007-000171 SA 

R208 R-CHIP 2007-000171 SA 

R209 R-CHIP 2007-000167 SA 

R210 R-CHIP 2007-000172 SA 

R212 R-CHIP 2007-000172 SA 

R213 R-CHIP 2007-000162 SA 

R215 R-CHIP 2007-007142 SA 

R216 R-CHIP 2007-000154 SA 

R217 R-CHIP 2007-000153 SA 

R218 R-CHIP 2007-000162 SA 

R219 R-CHIP 2007-000140 SA 

R220 R-CHIP 2007-000171 SA 

R300 R-CHIP 2007-000157 SA 

R301 R-CHIP 2007-000157 SA 

R302 R-CHIP 2007-000162 SA 

R303 R-CHIP 2007-000171 SA 

R304 R-CHIP 2007-007480 SA 

R305 R-CHIP 2007-000157 SA 

R306 R-CHIP 2007-000159 SA 

R307 R-CHIP 2007-007142 SA 

R308 R-CHIP 2007-000171 SA 

R309 R-CHIP 2007-007573 SA 

R310 R-CHIP 2007-000162 SA 

R311 R-CHIP 2007-007573 SA 

R312 R-CHIP 2007-000143 SA 

R313 R-CHIP 2007-000143 SA 

R315 R-CHIP 2007-000171 SA 

R400 R-CHIP 2007-007107 SA 

R401 R-CHIP 2007-007142 SA 

R403 R-CHIP 2007-007142 SA 

R404 R-CHIP 2007-007107 SA 

R405 R-CHIP 2007-001320 SA 

R406 R-CHIP 2007-000142 SA 

R407 R-CHIP 2007-001317 SA 

6-4 



6-5 





R409 R-CHIP 2007-001320 SA 

R410 R-CHIP 2007-000142 SA 

R411 R-CHIP 2007-007142 SA 

R412 R-CHIP 2007-007101 SA 

R413 R-CHIP 2007-007101 SA 

R414 R-CHIP 2007-007142 SA 

R415 R-CHIP 2007-007573 SA 

R416 R-CHIP 2007-007480 SA 

R417 R-CHIP 2007-001339 SA 

R418 R-CHIP 2007-000162 SA 

R419 R-CHIP 2007-001317 SA 

R420 R-CHIP 2007-000172 SA 

R421 R-CHIP 2007-000172 SA 

R422 R-CHIP 2007-000171 SA 

R500 R-CHIP 2007-007156 SA 

R501 R-CHIP 2007-007156 SA 

R502 R-CHIP 2007-000171 SA 

R503 R-CHIP 2007-000162 SA 

R504 R-CHIP 2007-007021 SA 

R505 R-CHIP 2007-001329 SA 

R506 R-CHIP 2007-000172 SA 

R507 R-CHIP 2007-000172 SA 

R508 R-CHIP 2007-001325 SA 

R509 R-CHIP 2007-003001 SA 

R510 R-CHIP 2007-000171 SA 

R511 R-CHIP 2007-008137 SA 

R512 R-CHIP 2007-008137 SA 

R513 R-CHIP 2007-000162 SA 

R514 R-CHIP 2007-000171 SA 

R515 R-CHIP 2007-000172 SA 

R516 R-CHIP 2007-000172 SA 

R601 R-CHIP 2007-000172 SA 

R602 R-CHIP 2007-000171 SA 

R700 R-CHIP 2007-001307 SA 

R701 R-CHIP 2007-001301 SA 

R702 R-CHIP 2007-001308 SA 

R703 R-CHIP 2007-003004 SA 

R704 R-CHIP 2007-003004 SA 

R705 R-CHIP 2007-001307 SA 

R706 R-CHIP 2007-001307 SA 

R707 R-CHIP 2007-002970 SA 

R708 R-CHIP 2007-003030 SA 

R709 R-CHIP 2007-001307 SA 

R710 R-CHIP 2007-003030 SA 

R711 R-CHIP 2007-000171 SA 

R712 R-CHIP 2007-003001 SA 

R800 R-CHIP 2007-000171 SA 

R801 R-CHIP 2007-000171 SA 

R802 R-CHIP 2007-000171 SA 

R803 R-CHIP 2007-000566 SA 

R804 R-CHIP 2007-000566 SA 

R805 R-CHIP 2007-000566 SA 

R806 R-CHIP 2007-000566 SA 

R807 R-CHIP 2007-000566 SA 

R808 R-CHIP 2007-000140 SA



R809 R-CHIP 2007-000140 SA 

R810 R-CHIP 2007-000140 SA 

R811 R-CHIP 2007-000140 SA 

R812 R-CHIP 2007-000140 SA 

R813 R-CHIP 2007-000140 SA 

R814 R-CHIP 2007-000140 SA 

R815 R-CHIP 2007-000140 SA 

R816 R-CHIP 2007-000140 SA 

R817 R-CHIP 2007-000140 SA 

R818 R-CHIP 2007-000171 SA 

R819 R-CHIP 2007-000140 SA 

R820 R-CHIP 2007-000140 SA 

SIM200 CONNECTOR-CARD EDGE 3709-001229 SA 

TH300 THERMISTOR-NTC 1404-001221 SA 

TR200 TR-DIGITAL 0504-000168 SA 

U101 IC-TRANSCEIVER 1205-003116 SA 

U201 IC-BATTERY 1203-003663 SA 

U202 IC-CMOS LOGIC 0801-000796 SA 

U401 IC-VOLTAGE COMP. 1202-001068 SA 

U500 IC-MELODY 1204-001811 SA 

U501 IC-DEMODULATOR 1204-002688 SA 

U502 IC-AUDIO AMP 1201-002356 SA 

U503 IC-POSI.FIXED REG. 1203-003737 SA 

U700 VARISTOR 1405-001082 SA 

U701 IC-DC/DC CONVERTER 1203-004247 SA 

UCP200 IC-POWER SUPERVISOR 1203-003304 SA 

UCP300 IC MICOM-SGHX480 GH09-00036A SA 

VR401 VARISTOR 1405-001082 SA 


VR403 DIODE-TVS 0406-001223 SA 

VR404 DIODE-TVS 0406-001223 SA 


VR701 DIODE-TVS 0406-001223 SA 

VR702 DIODE-TVS 0406-001223 SA 

VR703 DIODE-TVS 0406-001223 SA 

VR704 DIODE-TVS 0406-001223 SA 

VR705 DIODE-TVS 0406-001223 SA 

VR706 DIODE-TVS 0406-001223 SA 

VR707 DIODE-TVS 0406-001223 SA 

VR708 DIODE-TVS 0406-001223 SA 

VR709 DIODE-TVS 0406-001223 SA 

VR710 DIODE-TVS 0406-001223 SA 

VR711 DIODE-TVS 0406-001223 SA 

VR712 DIODE-TVS 0406-001223 SA 

ZD400 DIODE-TVS 0406-001104 SA 

ZD800 DIODE-ZENER 0403-001547 SA 

ZD801 DIODE-ZENER 0403-001547 SA 

ZD802 DIODE-TVS 0406-001190 SA 

ZD803 DIODE-TVS 0406-001190 SA 

ZD804 DIODE-TVS 0406-001190 SA 

6-6 




Antenna 

DUAL ASM 

(GSM, DCS) 

EGSM Rx 

DCS Rx 

EGSM Tx 

DCS Tx 

DUAL 

SAW FILTER 

(GSM, DCS) 

PAM 

LNA 

LNA 

LNA 

LNA 

0 / 90 

VCO + FREQUENCY 

SYNTHESIZER 

7-1 

PGA 

PGA 

ф 

DET 

I 

ADC 

Q 

ADC 

Low-IF 



DIGITAL 

FILTER 

Digital 

PGA 

PGA 

DCXO 

Crystal 

Si4210 

ANALOG INTERFACE 

I 

Q 

XOUT 

AFC 

CPS2200B1

8. PCB Diagrams 

Top 

8-1 



PCB Diagrams 

Bottom 

8-2 




9-1. Baseband 

9-1-1. Power ON 

'Power ON' does not work 

check the current 

consumption 

>= 100mA 

END 

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 #4 of OSC100 

Freq=26Mhz, 

Vrms >=300mV 

Yes 

Check the Initial Operation 

Yes 

No 

No 

No 

9-1 

Download again 

Charge the battery 

Check 

"Power On" 

key? 

No 

No Check the clock generation 

circuit OSC100 

check keypad 

Yes 1 

check UCP200 and C200 

2

Flow Chart of Troubleshooting 

VCCD VCCA 

2 

C201 

GNDS6 

GNDS5 G7 

GNDS4 F10 

GNDS3 F9 

GNDS2 F8 

G8 

GNDS11 

GNDS10 H7 

GNDS9 H6 

GNDS8 G10 

GNDS7 G9 

GNDS1 F7 

H8 

AUX_ADC3 D13 

1 

VDDB A6 

VDDD 

VSS4 P6 

VSS3 R2 

VSS2 K4 

VSS1 G5 

N11 

GND_OCTL B4 

VDD_OCTL C4 

GNDV P13 

VDDV L11 

GNDB F6 

GNDD M10 

VDD_IO2 J4 

VDD_IO1 N5 

VDD3 N6 

M3 

9-2 

C200

9-1-2. Initial 

Initial Failure 

check the pin 

RSTB of UCP300 

is LOW? 

END 

Yes 

check the pin CKI 

of UCP300 is 

13Mhz? 

Yes 

Check the clock signal 

at pin #3 of OSC100 

Freq=26Mhz? 

Yes 

Check the pin #9 of 

UCP300 is HIGH and pin 

#11, #13 is 2.9V? 

Yes 

Check the Initial Operation 

Yes 

9-3 

No 

No 

No 

No 


Check UCP300 

Check 

R104,R108,R200,C124 

check OSC100 

Check UCP200 

1 

2 

3 

4


1 

9-4 

4 

2 

3

9-1-3. Sim Part 

"Insert SIM" is displayed on the LCD 

The voltage is 2.8V 

at the pin#1 of 

Is there any signal 

pin #2,3,4 of 

SIM200? 

END 

Yes 

Yes 

Check the SIM Card 

9-5 

No 

No 

Check the UCP200 


Check the UCP200 & UCP300 

1 

2


2 

9-6 

1 2

9-1-4.Microphone Part 

* Call with Sim before testing. 

MicroPhone does not work 

Check the soldered 

status of microphone 

END 

Yes 

Yes 

Check the reference 

voltage on mic path 

C410 ≒ 2.0V 

Yes 

Is microphone OK? 

Yes 

9-7 

No 

No 

No 

Resolder microphone 


Resolder or change 

Check UCP200 

2 

1


2 

9-8 

1

9-1-5. Speaker Part 

There is no sound from speaker 

Are there any signal at 

the speaker pad on PCB? 

END 

No 

Check R515, R516 of 

U502. Voltage is ≥1V? 

Yes 

9-9 

Yes 

No 


Replace the speaker module 

Check MEM600 

1


1 

9-10

9-1-6. LCD Backlight 

Backlight does not work 

Backlight ON "TIME" 

mode in the menu? 

Check soldering pad 

between PBA and LCD 

END 

Yes 

Yes 

Check U704 pin #6 = 

10V ? 

Yes 

9-11 

No 

No 

No 


Select backlight "15 sec" mode 

Check FPCB 

Check the LCD


9-2. RF 

9-2-1. GSM Rx 

CONTINOUS RX ON 

RF INPUT : 62CH 

AMP : -50dbm 

Normal condition 

catch the 

channel ? 

Yes 

Check PAM100 

pin 12 ≥ -65 

dbm ? 

Yes 

Check PAM100 

pin 16 ≥ -65 

dbm ? 

Yes 

Check U101 

pin 21,22 ≥- 

65dBm ? 

Yes 

Check U101 

pin 13 = 2.9V 

Yes 


UCP300 

No 

No 

No 

No 

No 

9-12 

Check ANT, R111,R100,C131,L110 


CON100, L103, C100, L102, C101, L104 


PAM100 


F100, F101 


UCP200 

1 

2 

3 

4 

5

4 

5 

9-13 

4 

3 


2 

1


9-2-2. DCS Rx 

CONTINOUS RX ON 

RF INPUT : 698CH 

AMP : -50dbm 

Normal condition 

catch the 

channel ? 

Yes 

Check PAM100 

pin 12 ≥ -65 

dbm ? 

Yes 

Check PAM100 

pin 18 ≥ -65 

dbm ? 

Yes 

Check U101 

pin 19,20 ≥- 

65dBm ? 

Yes 

Check U101 

pin 13 = 2.9V 

Yes 


U300 

No 

No 

No 

No 

No 

9-14 

Check ANT,R111,R101,C129,L108 


CON100, L103, C100, L102, C101, L104 


PAM100 


F100, F101 


UCP200 

1 

2 

3 

4 

5

4 

5 

9-15 

4 

1 

3 


2


9-16

9-2-3. GSM Tx 

1 

Check U101 

pin 15 : about 

2~3 dbm? 

Yes 

Check and 

change 

CON100, 

L105,C103 

No 

No 

PAM100 pin 15 

: 3.7V ? 

Yes 

PAM100 pin 14 : 

1.2V ? 

Yes 

PAM100 pin 5 

:about -5dbm? 

Yes 

PAM100 pin 3 

: 3V ? 

Yes 

PAM100 

change or resolder 

Check U101 

pin 6 : 2.8V ? 

Yes 

PAM100 pin 5 : 

about 4~5dbm? 

Yes 

U101 

check & change 

9-17 

No 

No Battery, UCP200 


No UCP200 check 

No 

3 

No UCP200 

check 

6 

2 

Check and 

change 

UCP300, 

UCP200 

5 

4 

U101 pin 12,13, 

28,29 : 2.9V ? 

Yes 

U101 


7 


CONTINUS TX ON CONDITION 

TX POWER DAC : 554 CODE 

APPLIED 

CH : 62ch 

RBW : 100KHz 

VBW : 100KHz 

SPAN : 10MHz 

REF LEV : 10dBm 

ATT : 20dB 

No 

8 

UCP200 

change or resolder


1 

2 

2 

3 

9-18

9-2-4. DCS Tx 

1 

Check U101 

pin 15 : about 

2~3 dbm? 

Yes 

Check and 

change 

CON100, 

L106,L108 

No Check U101 

pin 6 : 2.8V ? 

No 

No 

PAM100 pin 15 

: 3.7V ? 

Yes 

PAM100 pin 14 

: 1.2V ? 

Yes 

PAM100 pin 9 

:about -5dbm? 

Yes 

PAM100 pin 3 

: 3V ? 

Yes 

PAM100 


Yes 

PAM100 pin 9 

:about 4~5dbm? 

Yes 

U101 


No 

No 

No 

No 

3 

9-19 

2 

Battery, UCP200 


UCP200 check 

UCP200 

check 

6 

Check and 

change 

UCP300, 

UCP200 

5 

4 

U101 pin 12,13, 

28,29 : 2.9V ? 

Yes 

U101 


7 


CONTINUS TX ON CONDITION 

TX POWER DAC : 560 CODE 

APPLIED 

CH : 698CH(DCS), 

660CH(PCS) 

RBW : 100KHz 

VBW : 100KHz 

SPAN : 10MHz 

REF LEV : 10dBm 

ATT : 20dB 

No 

8 

UCP200 

change or resolder


1 

2 

2 

3 

9-20

10. Reference data 

Reference Abbreviate 

― AAC: Advanced Audio Coding. 

― AVC : Advanced Video Coding. 

― BER : Bit Error Rate 

― BPSK: Binary Phase Shift Keying 

― CA : Conditional Access 

― CDM : Code Division Multiplexing 

― C/I : Carrier to Interference 

― DMB : Digital Multimedia Broadcasting 

― EN : European Standard 

― ES : Elementary Stream 

― ETSI: European Telecommunications Standards Institute 

― MPEG: Moving Picture Experts Group 

― PN : Pseudo-random Noise 

― PS : Pilot Symbol 

― QPSK: Quadrature Phase Shift Keying 

― RS : Reed-Solomon 

― SI : Service Information 

― TDM : Time Division Multiplexing 

― TS : Transport Stream 

10-1 



Reference Data 

10-2 



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. 

2006. 12 Rev.1.0

Samsung SGH-C240 service manual.pdf

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