Samsung SGH-E620 Service Manual Download Page 29 | Manualshive

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Samsung SGH-E620 Service Manual Download Page 29

SGH-E620 Flow Chart of Troubleshooting

2-

26

2-12. GSM Transmitter

Check F700

pin 10 : about

2~3 dbm?

Check F700

pin 11 :

2.8V ?

Check and

change

CN702

,

C715

Yes

Check and

change

U100

,

U200

No

CONTINUS TX ON CONDITION

TX POWER DAC : 554 CODE

APPLIED

CH : 62ch

RBW : 100KHz

VBW : 100KHz

SPAN : 10MHz

REF LEV : 10dBm

ATT : 20dB

U701 pin6 :

about 4~5dbm?

Yes

No

Yes

U701 pin 8,20

:

3.7V ?

F700

check & change

No

Battery,

U100

check & change

Yes

U701 pin 22 :

1.2V ?

No

U100

check

Yes

U701 pin12 :

3V ?

No

U100

check

U700 pin 9 :

2.8V ?

U701

change or resolder

U100

change or resolder

No

Yes

U700

change or resolder

Yes

U701 pin 6 :

about -5dbm?

No

Yes

No

1

2

3

4

5

6

7

8

1

2

2

3

4

5

6

7

8

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Summary of Contents for SGH-E620

Page 1: ...GSM TELEPHONE SGH E620 GSM TELEPHONE CONTENTS 1 Specification 2 Flow Chart of Troubleshooting 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams ...

Page 2: ...810 Tx Rx spacing 45MHz 45MHz 95MHz 80MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class 5pcl 19pcl 5pcl 19pcl 0pcl 15pcl 0pcl 15pcl Sensitivity 102dBm 10...

Page 3: ...m 1 2 GSM Tx Power Class 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 Tx Power control level GSM900 5 33 3 dBm 6 31 3 dBm 7 29 3 dBm 8 27 3 dBm 9 25 3 dBm 10 23 3 dBm 11 21 3 dBm 12 19 3 dBm 13 17 3 dBm 14 15 3 dBm 15 13 3 dBm 16 11 3 dB...

Page 4: ...er ON does not work No Yes Yes END Yes Check the Initial Operation Check U100 Yes Yes Check U100 pin A13 2 8V No U100 pin C12 1 8V No Yes Charge the battery No Check the Voltage of the Battery more than 3 5V check keypad No Check the pin J12 of U100 is more than 2 8V Check Power On key No check U100 and C103 Yes 1 2 1 1 2 ...

Page 5: ... D10 C9 VL5S_B VLDO_1 G11 VLDO_2 J12 VLDO_3 VDD12 J13 C11 VDD34 5 D D V 0 1 C SIM_CLK K14 SIM_IO J11 SIM_RST K11 UP_CLK N9 UP_IO P10 UP_RST R10 VACC F14 VBAT E13 SCLK_PSC L8 M7 SDI_PSC SDO_PSC N7 RING_DRV F13 LED1_DRV G13 LED2_DRV G12 CH_BDRV E11 CH_ISEN F12 CH_RES D14 K8 CSN_PSC ADC_AUX1 E10 ADC_AUX2 D15 VRF_2 8 C108 C117 C107 C111 C114 C103 C119 C113 C116 C112 VBAT VRTC_1 5 C118 C104 UP_CS KEY_B...

Page 6: ...boot on Initial Failure Check pin4 of OSC200 Voltage is 2 8V Check OSC200 L708 pin A13 of U100 OSC700 C113 No Yes Yes No No Check pin10 of U302 Voltage is 2 5V Check or Change U301 Yes Yes No Check pin3 of OSC700 Frequency is 13MHz Check or change OSC700 Check OSC300 is working No Check the soldered status of U302 U200 1 2 3 4 5 ...

Page 7: ...SGH E620 Flow Chart of Troubleshooting 2 4 1 2 2 2 3 4 4 5 ...

Page 8: ... D _ I C M _ 4 2 O I P 5 1 L 9 1 V 5 2 O I P 6 2 O I P 6 1 U 7 2 O I P 6 1 G T U O 2 3 C S O D M C _ I C M _ 8 0 O I P 3 1 J 0 1 O I P 7 1 V IRQ1 M16 M19 IRQ2 IRQ3 P17 P18 IRQ4 C216 USB_DET BT_POW_EN SPK_ON D N G 16 5 N C N C 8 7 N C 1 VIN VOUT1 10 9 VOUT2 EN1 2 3 EN2 GND 6 11 D N G D N G 12 13 D N G D N G 14 15 D N G U302 CBYP 4 C316 CAM_1 8 C314 R309 VBAT C313 C315 CAM_2 5 C317 CAMPWR_EN R110 VB...

Page 9: ... C312 R306 XIN XOUT A1 A2 NC 2 1 NC C310 OSC300 2 4 3 1 R702 BUFFIN 5 6 BUFFOUT 2 GND 3 OUT VCC 4 VCONT 1 OSC700 C709 10NF 16V R705 R701 L708 C706 C704 C707 100PF 50V C708 R704 R703 C711 VRF_2 8 C705 AFC CLK13M_RF CLK13M_TR CLK13M_MC CLK13M_NEC ...

Page 10: ...tor s CN100 connection to SIM card Check the circuit related to U100 Resolder or change CN100 END No Yes Yes Yes No Check the circuit around CN100 input circuitry Check the related circuit of CN100 Yes No Check the circuit around U200 output and voltage supply circuitty Check the related circuit of U200 and U100 Yes No 1 2 3 4 1 2 3 4 4 ...

Page 11: ...testing Check the soldered status of microphone MicroPhone does not work Resolder microphone END No Yes Yes Check the reference voltage on mic path R437 R439 2 0V Yes Resolder or change R429 C422 R433 R432 R437 R434 C429 R435 R436 R439 No Is microphone OK Yes Check U100 No 1 2 1 1 1 2 ...

Page 12: ...SGH E620 Flow Chart of Troubleshooting 2 9 C429 C425 R437 AGND R432 R435 R429 MIC401 C430 R433 C426 R439 C422 C427 C431 R434 R436 MIC1N MICINN MICINP MICOUTP MIC1P MICOUTN ...

Page 13: ... 2 10 2 5 Bluetooth Part Bluetooth does not work When you play MPEG file if Audio is not active Check U602 pin5 2 6V U100 C12 pin 1 8V Yes Resolder U602 or U100 No Check pin22 of U601 1 5 dbm Yes Resolder U601 No Change ANT601 Yes 1 2 1 1 2 ...

Page 14: ...DD_REG 14 15 VDD_UART PIO_8 23 1 RESETB UART_CTS 16 11 UART_RTS UART_RX 10 UART_TX 9 VDD_PADS 19 VDD_PIO 12 7 PCM_OUT 8 PCM_SYNC 24 PIO_0 25 PIO_3 PIO_4 UART_TX2 3 6 PIO_5 UART_RTS2 PIO_6 UART_CTS2 4 17 PIO_7 UART_RX2 22 ANT D N G 5 13 D N G D N G 18 21 D N G D N G 26 PCM_CLK 2 PCM_IN U601 TR_RST BT_2 8 DEBUG_RTS DEBUG_RXD PCM_OUT DEBUG_TXD DEBUG_CTS PCM_IN PCM_CLK PCM_SYNC ...

Page 15: ...esting Check the soldered status of Speaker Receiver does not work Check the pin 7 of U401 High Resolder Speaker Check U401 and the audio path of U400 U100 END No Yes Yes No Is Speaker working Is Speaker working Check the path from U100 to CN500 Change Speaker No Yes Yes No 1 ...

Page 16: ...SGH E620 Flow Chart of Troubleshooting 2 13 1 1 1 ...

Page 17: ..._SCL VTREF PCLK CAM_RESET LCD_D 10 _FO LCD_D 8 _FO LCD_D 0 _FO LCD_D 2 _FO LCD_D 4 _FO CAM_FLASH_FO LCD_RS_FO CAM_Y 3 CAM_Y 6 CAM_Y 4 CAM_Y 2 CAM_Y 0 LCD_D 11 _FO LCD_D 9 _FO LCD_D 1 _FO LCD_D 13 _FO LCDVIB_EN SPK1N LCD_WEN_FO LCD_CS_FO CAM_Y 5 CAM_Y 7 LCD_D 6 _FO LCD_D 14 _FO LCD_D 12 _FO TR_RST CAM_Y 1 LCD_D 5 _FO LCD_D 7 _FO LCD_D 15 _FO M C V X V 3 1 R N N I C I M 4 1 M P N I C I M 4 1 N N T U...

Page 18: ... AGND D1 DVDD D10 IREF D2 N C D3 N C D4 N C D8 LINEOUT_L C1 LED C10 TM0 C2 N C C3 DVDD_D C4 DGND_D C5 N C C6 N C C7 N C B2 TM2 B3 TM4 B4 CLK8K B5 PS B6 ASO B7 BCLK B8 N C B9 RDATA A4 TRSCK A5 EGND A6 ASI A7 LRCLK A8 DVDD A9 N C B1 N C B10 NC 1 NC 2 ShortedwithK1 A1 ShortedwithK10 A10 N C A2 TM3 A3 U400 C408 C418 VCCD_1 8 C454 R423 VCCD_1 5 C419 C413 C417 C424 VCCD_2 8 C416 R431 NEC_RST NEC_IRQ SOU...

Page 19: ...dered status of CN500 and connecting status between connector and PBA Check the Initial Operation END Yes When pad pressed Pin 38 of CN500 2 8V high Yes Resolder CN500 or U200 No Check U200 No Yes Check the Keypad Dome Sheet Replace or Adjust the Keypad Dome Sheet 1 2 1 1 2 ...

Page 20: ...Y XBS 1 2 R527 8 2 5 D Z 7 2 5 D Z MENU KEY XBS 1 2 R511 KEY XBS 1 2 R508 R510 ZD503 R513 R509 8 KEY XBS 1 2 ZD501 2 I KEY XBS 1 ZD504 KEY XBS RIGHT 1 2 1 2 ZD506 4 KEY XBS STO KEY XBS 1 2 1 2 KEY XBS LEFT 2 KEY XBS 5 1 4 2 5 D Z 5 2 5 D Z ZD508 SEND KEY XBS 1 2 KEY XBS UP 1 2 R512 ZD505 1 2 KEY XBS 3 1 2 2 KEY XBS R504 KEY_COL 3 KEY_COL 0 KEY_COL 1 KEY_COL 2 KEY_COL 4 KEY_COL 0 4 KEY_ROW 2 KEY_RO...

Page 21: ...oting 2 18 2 8 LCD backlight Backlight ON TIME mode in the menu Backlight does not work Check conecting between PBA and LCD conector Select backlight 15 sec mode Check FPCB END No Yes No Check CN500 pin 30 high Check the LCD Yes Yes No ...

Page 22: ...5 dbm Check U700 pin 20 21 65dBm Yes No No Check F700 pin 1 2 65 dbm Yes No Yes Check ANT C716 Resolder or change C716 R706 Resolder or change F700 Resolder or change C724 C725 L701 Resolder or change U200 CONTINOUS RX ON RF INPUT 62CH AMP 50dbm Check U700 pin 32 2 8V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 23: ...SGH E620 Flow Chart of Troubleshooting 2 20 1 2 3 4 5 ...

Page 24: ...5 dbm Check U700 pin 18 19 65dBm Yes No No Check F700 pin 3 4 65 dbm Yes No Yes Check ANT C716 Resolder or change C716 R706 Resolder or change F700 Resolder or change C727 C729 L707 CONTINOUS RX ON RF INPUT 698CH AMP 50dbm Check U700 pin 32 2 8V Yes Resolder or change U100 Yes No No Resolder or change U200 1 2 3 4 5 ...

Page 25: ...SGH E620 Flow Chart of Troubleshooting 2 22 1 2 3 4 5 ...

Page 26: ...5 dbm Check U700 pin 16 17 65dBm Yes No No Check F700 pin 5 6 65 dbm Yes No Yes Check ANT C716 Resolder or change C716 R706 Resolder or change F700 Resolder or change C733 C735 L704 CONTINOUS RX ON RF INPUT 660CH AMP 50dbm Check U700 pin 32 2 8V Yes Resolder or change U100 Yes No No Resolder or change U200 1 2 3 4 5 ...

Page 27: ...SGH E620 Flow Chart of Troubleshooting 2 24 1 2 3 4 5 ...

Page 28: ...11 TXIN 5 TXIP 4 TXQN 7 TXQP 6 D D V 20 RFIPN 17 RFIPP 16 D O F R 22 G O F R 23 RXIN 3 RXIP 2 RXQN 1 P Q X R D N G 33 D N G 34 D N G GND 35 36 GND RFIDN 19 18 RFIDP RFIGN 21 RFIGP U700 1 G A I D 24 2 G A I D 25 GND 15 D N G 29 30 D N G 31 C701 C710 VRF_2 8 C703 RF_EN SERLE SERCLK SERDAT DPCS_PAM_IN CLK13M_RF DCS_LNA_IN_P DCS_LNA_IN_N GSM_LNA_IN_N GSM_LNA_IN_P PCS_LNA_IN_N PCS_LNA_IN_P RTX_IN RTX_I...

Page 29: ... DAC 554 CODE APPLIED CH 62ch RBW 100KHz VBW 100KHz SPAN 10MHz REF LEV 10dBm ATT 20dB U701 pin6 about 4 5dbm Yes No Yes U701 pin 8 20 3 7V F700 check change No Battery U100 check change Yes U701 pin 22 1 2V No U100 check Yes U701 pin12 3V No U100 check U700 pin 9 2 8V U701 change or resolder U100 change or resolder No Yes U700 change or resolder Yes U701 pin 6 about 5dbm No Yes No 1 2 3 4 5 6 7 8 ...

Page 30: ... U701 pin31 about 4 5dbm No Check F700 pin 8 about 2 3 dbm No Check and change U100 U200 Yes No Yes Check and change CN702 C715 Yes F700 check change No Battery U100 check change Yes No U100 check Yes No Yes No U100 check Yes U701 change or resolder U700 pin 9 2 8V No U100 change or resolder Yes U700 change or resolder U701 pin 43 42 3 7V U701 pin 22 1 2V U701 pin 5 about 5dbm U701 pin2 3V 1 2 3 4...

Page 31: ... Parts list 3 1 3 1 Cellular phone Exploded View QIF01 QBA01 QCR26 QVO01 QCK01 QMP01 QMI03 QMI01 QVK01 QCA02 QME01 QLC01 QSP01 QMO01 QCA01 QFL01 QCR04 QSC05 QSC08 QMW02 QKP01 QCW03 QFU01 QFR01 QAN02 QRE01 QRF03 QMP02 QCR26 QRF01 QSP03 ...

Page 32: ...01479 QSC05 PMO FOLDER SCREW CAP L GH72 21541A QSC08 PMO FOLDER SCREW CAP R GH72 21542A QFR01 FRONT COVER GH75 06231A QVO01 KEY VOLUME GH75 05708A QKP01 KEYPAD GH75 05570A QMP01 PBA MAIN GH92 01912A QVK01 UNIT VOLUME KEY GH59 01826A QCA02 UNIT CAMERA KEY GH59 01827A QME01 UNIT METAL DOME GH59 01828A QMI03 MIC HOLDER GH73 04073A QMI01 MICROPHONE ASSY GH30 00161A QCR26 SCREW MACHINE 6001 001850 QAN0...

Page 33: ...ploded view and its Part list 3 2 3 3 Test Jig GH80 03307A 3 3 1 RF Test Cable GH39 00283A 3 3 2 Test Cable GH39 00304A 3 3 3 Serial Cable 3 3 4 Power Supply Cable 3 3 5 DATA CABLE GH39 00294A 3 3 6 TC GH44 00701A ...

Page 34: ...IC MULTI REG 1203 003472 U100 IC POWER SUPERVISOR 1204 001915 U204 IC FILTER 1205 002433 U700 IC TRANSCEIVER Design LOC SEC Code Discription 1205 002644 U400 IC TONE GENERATOR 1205 002694 U301 IC CONTROLLER 1209 001219 U101 IC SENSOR 1405 001082 ZD401 VARISTOR 1405 001082 ZD402 VARISTOR 1405 001082 ZD403 VARISTOR 1405 001082 ZD404 VARISTOR 1405 001082 ZD405 VARISTOR 1405 001082 ZD406 VARISTOR 1405...

Page 35: ... 2007 000170 R108 R CHIP 2007 000170 R306 R CHIP 2007 000170 R423 R CHIP 2007 000171 R110 R CHIP 2007 000171 R202 R CHIP Design LOC SEC Code Discription 2007 000171 R203 R CHIP 2007 000171 R204 R CHIP 2007 000171 R205 R CHIP 2007 000171 R220 R CHIP 2007 000171 R429 R CHIP 2007 000171 R434 R CHIP 2007 000171 R440 R CHIP 2007 000171 R441 R CHIP 2007 000171 R443 R CHIP 2007 000171 R444 R CHIP 2007 00...

Page 36: ...2 R CHIP 2007 007316 R404 R CHIP 2007 007319 R466 R CHIP Design LOC SEC Code Discription 2007 007319 R467 R CHIP 2007 008542 R469 R CHIP 2007 008542 R631 R CHIP 2007 008542 R632 R CHIP 2007 008542 R633 R CHIP 2007 008542 R634 R CHIP 2007 008542 R635 R CHIP 2007 008542 R636 R CHIP 2203 000233 C112 C CER CHIP 2203 000233 C707 C CER CHIP 2203 000233 C710 C CER CHIP 2203 000233 C713 C CER CHIP 2203 00...

Page 37: ...CER CHIP 2203 005061 C311 C CER CHIP 2203 005061 C408 C CER CHIP 2203 005061 C409 C CER CHIP 2203 005061 C418 C CER CHIP Design LOC SEC Code Discription 2203 005061 C419 C CER CHIP 2203 005061 C424 C CER CHIP 2203 005061 C704 C CER CHIP 2203 005288 C724 C CER CHIP 2203 005288 C725 C CER CHIP 2203 005444 C728 C CER CHIP 2203 005480 C415 C CER CHIP 2203 005480 C421 C CER CHIP 2203 005482 C201 C CER ...

Page 38: ...508 C TA CHIP 2404 001339 C607 C TA CHIP 2703 001513 L703 INDUCTOR SMD 2703 001708 L709 INDUCTOR SMD 2703 001907 L701 INDUCTOR SMD 2703 002313 L405 INDUCTOR SMD 2703 002313 L409 INDUCTOR SMD 2703 002519 L705 INDUCTOR SMD 2703 002547 L707 INDUCTOR SMD 2703 002586 L702 INDUCTOR SMD Design LOC SEC Code Discription 2703 002665 L704 INDUCTOR SMD 2801 003747 OSC200 CRYSTAL SMD 2801 004436 OSC300 CRYSTAL...

Page 39: ...ANT700 CN100 1 0 4 N C 0 0 5 N C CN600 CN702 F500 F502 F504 F505 F506 F700 G1 G2 G3 G4 M1 MIC401 0 0 2 C S O 0 0 3 C S O OSC700 1 0 2 Q 0 0 1 U 1 0 1 U U200 3 0 2 U 5 0 2 U U300 U301 U302 U400 U501 1 0 6 U U700 1 0 7 U ZD402 ZD403 ZD404 ZD406 1 0 5 D Z ZD504 ZD506 8 0 5 D Z 9 0 5 D Z ZD511 ZD516 ZD517 ZD518 ZD519 ZD520 ZD521 ZD522 ZD601 2 0 6 D Z ZD604 ...

Page 40: ...D50 5 LED50 6 LED50 7 LED50 8 LED50 9 LED51 0 LED51 1 LED51 2 LED51 3 LED51 4 LED51 5 LED51 6 LED51 7 LED51 8 LEFT U N E M PWR Q20 0 RAM2 RIGHT ROM3 ROM4 SEND SHARP O T S TP20 3 TP20 4 TP30 2 TP30 3 TP304 TP306 TP60 1 TP60 2 TP60 3 TP60 4 TP60 5 TP60 6 TP60 7 TP60 8 TP60 9 TP61 0 TP61 1 TP61 2 1 0 2 U 2 0 2 U 4 0 2 U 1 0 4 U U40 3 U50 0 U60 2 UP 0 0 3 L O V ZD40 1 ZD40 5 ZD50 0 2 0 5 D Z ZD50 3 ZD...

Page 41: ...GA PGA ADC ADC N L A SI4205 SERIAL DATA INTERFACE DSP16000 ARM946 CSP2600 UI GSM 890MHz 915MHz DCS 1710MHz 1785MHz PCS 1850MHz 1910MHz PCS 1930MHz 1990MHz AFC CLK TCVCXO 13MHz I Q TRIDENT BASE BAND AUDIO TXPOWER DET TX VCO RF PLL IF PLL FEM RF FILTER GSM 925MHz 960MHz DCS 1805MHz 1880MHz Antenna PAM 100KHz PGA PGA CHANNEL FILTER DAC DAC I Q 6 1 RF Part ...

Page 42: ...rt B D to B D Connector ACC DSP16000 IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB PPI Programmable Peripheral I O ARM946 SMART CARD RTC EMI DSPJTAG JTAG ICE LCD KEYBOARD X TAL 32 768 KHz ARM JTAG ICE SIM I O GPIO RS232 CSP2600 IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB RF DRIVER TX I Q RX I Q TXP SERCK SERLE SERDA OCTL JTAG DAICK DAIRN DAIDO DAIDI AUDIO PART AUDIO LCD MOTOR CAM SSENSOR KEY PAD Camera As...

Page 43: ...o Ltd Apri 2005 Printed in Korea Code No GH68 06922A BASIC ⓒ 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 ...

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