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Samsung SGH-S341i, Service Manual

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SAMSUNG Proprietary-Contents may change without notice

SGH-S341i Flow Chart of Troubleshooting

2-

12

This Document can not be used without Samsung's authorization

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Summary of Contents for SGH-S341i

Page 1: ...SGH S341i SERVICE Manual 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 GSM TELEPHONE ...

Page 2: ...0 1990 ARFCN range 1 124 0 124 975 1023 512 885 512 810 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 Frame 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 13dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class...

Page 3: ... 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 TX Power control level PCS1900 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 ...

Page 4: ...oad again Charge the Battery Pin J12 2 8V Check U102 and C128 Pin A13 and pin 14 2 8V Check U102 and C129 Freq 13MHz Vrms 300mV Vpp 900mV Check the clock generation circuit related to osc501 Check the initial operation END No Yes Yes Yes Yes Yes Yes No No No No pin G11 1 5V 1 8V No Yes Check the current consumption Check the Vbat Voltage Check the pin of U102 Check the clock signal at pin 27 of U5...

Page 5: ...Check the U102 if it has some problem it is to be replaced Yes No Is the pin K9 of U102 Low High Yes No Check the U102 if it has some problem it is to be replaced There is 32 768kHz wave forms at the C218 and C219 Yes No Check the U202 Is the pin A4 of U102 is High The voltage is High at the C122 C123 C127 Check the U102 Check the U501 LCD display is O K No No Yes Yes Yes Check the LCD part No Sou...

Page 6: ...e used without Samsung s authorization 3 Sim Part Check the voltage at pin 1 of CN101 2 8V Insert SIM is displayed on the LCD Check the SIM connector s CN101 connection to SIM card Check the U102 Resolder or change CN101 END No Yes Yes Yes Yes No No Is there any signals pin 2 3 4 of CN101 Check the U202 Check the SIM Card ...

Page 7: ...WR_KEEP C15 PWR_SW1N C14 PWR_SW 2 B6 RAREF1 B5 RAREF2 RESETN_CSP N14 MICINP P15 MICOUT N N15 MICOUT P N10 MODE NC5 1 2 NC6 P5 NC7 E6 OCTL0 OCTL1 C5 F5 OCTL2 OCTL3 E5 F11 GND_HCU R B4 GND_OCTL B15 GND_PSC1 K15 GND_PSC2 L10 INTRQ I O L3 G13 LED1_DRV G12 LED2_DRV R6 MC M14 MICINN J10GNDS16 K10GNDS17 F8 GNDS 2 F9 GNDS 3 F10 GNDS 4 G7 GNDS 5 G8 GNDS 6 G9 GNDS 7 G10 GNDS 8 H6 GNDS 9 P13 GND V DINTR F6GN...

Page 8: ...IO IOBIT0_PIO05 V12 IOBIT1_PIO06 N11 M1 6 IRQ 1 IRQ 2 M1 9 P17 IRQ 3 IRQ 4 D_D11 D_D12 N8 N9 D_D13 N10 D_D14 P11 D_D15 D_D2 R7 T7 D_D3 D_D4 R8 D_D5 V8 D_D6 U8 T8 D_D7 D_A 1 D_A 2 W3 V3 D_A 3 U4 D_A 4 T5 D_A 5 D_A 6 V4 N6 D_A 7 D_A 8 R6 U6 D_D0 T6 D_D1 D_D10 P8 P9 B14 A_OEN A_WEN D14 CK I W1 2 CKO_IACK N12 CPTSTSTOP_CK O T17 M6 CTS0_PIO2 9 DCD0_PIO4 4 N5 DSR0_PIO0 2 P2 N4 DTR0_PIO0 3 D_A 0 V1 W2 A_...

Page 9: ...EN 12 SD O 11 TXIN 5 TXIP 4 TXQ N 7 TXQ P 6 VD D 9 VD D 32 XEN 26 RFO D 22 RFO G 23 RXIN 3 2 RXIP RXQ N 1 RXQ P 28 SCLK 13 SD I 14 37 NC NC 38 RFIDN 19 RFIDP 18 RFIGN 21 RFIGP 20 RFIPN 17 RFIPP 16 GN D 15 GND 29 30 GND GND 31 GND 33 34 GND GN D 35 36 GN D U501 DIAG 1 24 DIAG 2 25 R504 100 22NF C512 C506 10NF C516 100PF C503 30PF SERCLK SERLE RTXIN RTXQN RTXIP RTXQ P 13MHZ_BB XOENAQ_OUT CLK13M_RF R...

Page 10: ...ithout Samsung s authorization 4 Microphone Part Is the assembled status of microphone O K Microphone does not work Reassembled the microphone Resolder or change R136 R146 R141 R145 C137 C139 R157 R158 R161 R162 C152 C154 END No Yes Yes Yes Yes No Is microphone ok No Check U501 Check the reference voltage on mic path C142 2 0V Yes ...

Page 11: ...inal of Speaker O K No Replace the Speaker Yes Are there any signals at the C439 C462 No Yes Check LCD or Replace CN402 The type of sound from the Speaker is Melody Is there any signals at the pin 5 and pin 7 of U104 Is there any signals at the pin 2 and pin 10 of U104 Yes No The pin 4 of U104 is Low The pin 4 of U104 is High Check the U101 Check the U101 Yes Yes No No Check the U202 Check the U10...

Page 12: ...Q RD 31 RST 4 28 WR 5 NC PLLC 6 17 SPOUT 1 SPOUT 2 18 15 SPVD D SPVSS 16 7 VD D 9 VREF 34 GG 35 36 G HPOUT L MONO 10 11 HPOUT R IOVDD 32 LED 2 19 MT R 23 D4 D5 22 21 D6 D7 20 EQ 1 12 13 EQ 2 EQ 3 14 G 33 30 A0 1 CLKI D0 27 26 D1 25 D2 D3 24 U101 C118 4 7UF 6 3V R111 3 3K VCCD_1_8 R106 82K 100NF C117 150K R105 R107 33K 10 R171 VBA T 7 5 NC 1 NC2 U104 AUDIO_AMP_EN TP11 3 A 0 AOUTAP SPK1P AOUTAN SPK1...

Page 13: ...2K 1 ZD102 C149 2K 1 R166 R136 NC 150K 150K R146 1UF C152 G 13 14 G 44 5 5 66 7 7 88 9 9 G 11 12 G CN102 1 1 10 10 22 3 3 1U F C154 C148 NC R135 NC R158 10K 1 C138 NC C139 1UF C141 NC 1UF VCCD_1_8 C137 100PF C146 R167 2K 1 C147 NC VCCA C145 NC 2K 1 R168 R141 10K 1 VCCD_1_8 NC C153 R145 10K 1 33K 1 R161 0 R153 220 R148 100P F C157 1 2 3 4 5 6 7 8 ZD101 33U F C142 MIC MIC EAR_SWITCH MICOUT P MICINP ...

Page 14: ... of Troubleshooting 2 11 This Document can not be used without Samsung s authorization 6 Camera Part Camera function dose not work Yes Check the connect CN402 Yes U403 PIN 4 10 2 8V Yes R402 13 8MHz Connect the camera module Check U403 and C405 Check C407 of U402 No No No END ...

Page 15: ...J12 FPDAT13 FPDAT14 E1 DB13 DB14 F3 F2 DB15 DB 2 B3 L3 DB 3 DB 4 M3 L2 DB 5 DB 6 M2 D2 DB 7 DB 8 D3 D4 CNF5 CNF6 L10 COREVDD 1 L5 D10 COREVDD 2 COREVDD 3 H11 C4 CS DB 0 A4 A3 DB 1 DB10 E4 E3 DB11 DB12 E2 L6 M6 CM2DAT5 CM2DAT6 P5 N6 CM2DAT7 P6 CM2HREF N7 CM2VREF CNF0 G11 L11 CNF1 CNF2 K11 D9 CNF3 CNF4 E11 D11 CM1DAT6 P10 P11 CM1DAT7 M8 CM1HREF N8 CM1VREF M7 CM2CLKIN CM2CLKOUT P7 CM2DAT0 P4 N4 CM2DA...

Page 16: ...MP 50dBm NORMAL CONDITION catch the channel CHECK ANT501 R509 contact U501 pin 9 31 2 8V F502 CHECK pin1 2 65dBm U501 CHECK pin20 21 65dBm C518 CN403 resolder or change F502 resolder or change C527 C528 L503 resolder or change U102 pinA13 C127 change or resolder U501 CHECK pin 8 13MHz Vp p 950mV OSC501 change or resolder U501 resolder or change U102 CHECK U501 pin1 2 3 28 Vp p 120mV NO YES NO NO N...

Page 17: ...50dBm NORMAL CONDITION catch the channel CHECK ANT501 R509 contact U501 pin 9 31 2 8V F502 CHECK pin3 4 65dBm U501 CHECK pin18 19 65dBm C518 CN403 resolder or change F502 resolder or change C530 C532 L504 resolder or change U102 pinA13 C127 change or resolder U501 CHECK pin 8 13MHz Vp p 950mV OSC501 change or resolder U501 resolder or change U102 CHECK U501 pin1 2 3 28 Vp p 120mV NO YES NO NO NO N...

Page 18: ...catch the channel CHECK ANT501 R509 contact U501 pin 9 32 2 8V F502 CHECK pin5 6 65dBm U501 CHECK pin16 17 65dBm C518 CN403 resolder or change F502 resolder or change C535 C536 L505 resolder or change U102 pinA13 C127 change or resolder U501 CHECK pin 8 13MHz Vp p 950mV OSC501 change or resolder U501 resolder or change U102 CHECK U501 pin1 2 3 28 Vp p 120mV NO YES NO NO NO NO NO NO YES YES YES YES...

Page 19: ...502 pin8 20 3 7 V NO NO YES YES YES NO NO BATTERY check change U502 pin 22 1 6V YES NO U502 pin6 about 5dBm YES U502 pin 2 3V YES YES U502 change or resolder NO U102 check U102 check NO U501 pin9 32 2 8V U102 pinA13 C127 change or resolder YES U501 pin8 13MHz Vp p 950mV U501 pin4 5 6 7 100mV YES U102 change or resolder NO NO U501 change or resolder YES NO OSC501 change or resolder CONTINOUS TX ON ...

Page 20: ...in8 20 3 7 V NO NO YES YES YES NO NO BATTERY check change U502 pin 22 1 4V YES NO U502 pin5 about 5dBm YES U502 pin 2 3V YES YES U502 change or resolder NO U102 check U701 check NO U501 pin9 32 2 8V U102 pinA13 C127 change or resolder YES U501 pin8 13MHz Vp p 950mV U501 pin4 5 6 7 100mV YES U102 change or resolder NO NO U501 change or resolder YES NO OSC501 change or resolder CONTINUOUS TX ON COND...

Page 21: ...in8 20 3 7 V NO NO YES YES YES NO NO BATTERY check change U502 pin 22 1 4V YES NO U502 pin5 about 5dBm YES U502 pin 2 3V YES YES U502 change or resolder NO U102 check U102 check NO U501 pin9 32 2 8V U102 pinA13 C127 change or resolder YES U501 pin8 13MHz Vp p 950mV U501 pin4 5 6 7 100mV YES U102 change or resolder NO NO U501 change or resolder YES NO OSC501 change or resolder CONTINUOUS TX ON COND...

Page 22: ..._KEEP C15 PWR_SW1N C14 PWR_SW 2 B6 RAREF1 B5 RAREF2 RESETN_CSP N1 4 MICINP P15 MICOUT N N1 5 MICOUT P N1 0 MODE NC 5 1 2 NC 6 P5 NC 7 E6 OCTL0 OCTL1 C5 F5 OCTL2 OCTL3 E5 F11 GND_HCU R B4 GND_OCTL B15 GND_PSC1 K15 GND_PSC2 L10 INTRQ I O L3 G13 LED1_DRV G12 LED2_DRV R6 MC M1 4 MICINN J10GNDS16 K10GNDS17 F8 GNDS 2 F9 GNDS 3 F10 GNDS 4 G7 GNDS 5 G8 GNDS 6 G9 GNDS 7 G1 0 GNDS 8 H6 GNDS 9 P13 GND V DINT...

Page 23: ...CENA 2 RSVD 15 22 VAPC VBATT 20 3 VCC1 VCC1 8 GND 9 GN D GN D 10 GN D 11 13 GN D 14 GN D 16 GN D GN D 18 GND 21 BS 4 5 DCS PCSIN DCS PCSOU T 17 7 GN D GND 23 24 GND GND 25 26 30K 1 U502 R518 R501 560 100 R503 300 R523 47PF C518 6 3V 33U F C539 33PF C504 XI N 8 XOUT 27 _PD N 10 _SEN 12 SD O 11 TXIN 5 TXIP 4 TXQ N 7 TXQ P 6 VD D 9 VD D 32 XEN 26 RFO D 22 RFO G 23 RXIN 3 2 RXIP RXQ N 1 RXQ P 28 SCLK ...

Page 24: ...ed View and Parts List 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View QMW02 QFB01 QFU01 QVO01 QCR05 QBA20 QIF01 QRF01 QSC04 QMP01 QMI01 QVK01 QME01 QKP02 QLC05 QCA01 QPC01 QKP01 QFL01 QMO01 QFR01 QMP02 QME02 QSP01 QAN01 QRE01 ...

Page 25: ...H92 01770A QME02 UNIT METAL DOME GH59 01504A QFL01 SLIDING HINGE ASSY GH75 04234A QFR01 FRONT COVER GH75 04223A QMO01 MOTOR GH31 00092A QMP01 MIAN PBA GH92 01768A QVK01 UNIT VOLUME KEY GH59 01471A QPC01 PCB GH41 00539A QKP01 MAIN KEYPAD GH75 04229A QME01 UNIT METAL DOME GH59 01503A QCA01 CAMERA GH59 01395A QAN01 ANTENNA GH42 00418A QMI01 MICROPHONE GH30 00128A QVO01 VOLUME KEY GH75 04228A QRE01 RE...

Page 26: ...1i Exploded View and Parts List 3 3 This Document can not be used without Samsung s authorization 3 1 RF Test Cable GH39 00283A 3 2 Test Cable GH39 00304A 3 Test Jig GH80 06022A 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00305A 3 6 TA GH44 00701A ...

Page 27: ...4 2203 001101 C221 2203 005065 C222 2203 006208 C308 2203 005571 C309 2203 006257 C310 C325 2203 005682 C311 C312 C313 C314 2203 005682 C315 C316 C317 C318 2203 005682 C319 C417 C418 C430 2203 000812 C321 C322 C504 C537 2203 000550 C401 SEC Code Design LOC 2203 006053 C402 2404 001225 C405 2203 005482 C406 C408 C411 C412 2203 005482 C415 2203 005682 C431 C432 C433 C434 2203 005682 C435 C436 C439 C...

Page 28: ...07 007766 R166 R167 R168 R169 2007 000172 R172 R201 R502 2007 000157 R203 R209 R229 R301 2007 000171 R216 R217 R224 R227 2007 000242 R221 2007 001290 R222 R223 2007 000171 R230 R342 R401 R410 2007 000157 R302 R344 2007 000140 R307 R308 R312 R313 2007 000140 R314 R315 R316 R317 2007 000140 R318 R319 R320 R334 2007 001301 R321 R343 SEC Code Design LOC 2007 000148 R338 R339 R340 R341 2007 000162 R405...

Page 29: ...01853 CN13 3708 001852 CN14 2703 002339 L11 3301 001362 L13 L14 0601 001654 LED11 LED12 LED13 0601 001654 LED14 0504 001141 Q12 Q13 Q14 0505 001518 Q15 2007 001306 R15 R19 R40 R43 2007 000138 R16 R20 R41 R44 2007 003010 R17 R18 R42 R45 2007 000151 R21 R22 R23 2007 000162 R24 2007 000172 R31 R47 2007 000140 R37 2007 003025 R38 2007 001292 R39 2007 000171 R46 1203 002633 U11 1203 002690 U12 0406 001...

Page 30: ...enna ASM RF FILTER π 2 RF PLL PGA SERIAL DATA INTERFACE GSM 890MHz 915MHz PAM GSM 925MHz 960MHz I Q CSP2600 TRIDENT HP DSP16000 ARM946ES UI SERIAL DATA CLK LE RF FILTER DCS 1805MHz 1880MHz L N A PGA A D C A D C IF PLL DCS 1710MHz 1785MHz D E T 100KHz CHANNEL FILTER D A C D A C PGA PGA R X TCVCXO 13 MHz C L K A F C T X I Q Si 4205 PCS 1930MHz 1990MHz PCS 1850MHz 1910MHz RF FILTER ...

Page 31: ...ER DC DC CHARGER SIM X TAL 13MHz RS232 CSP2600 Audio Part LCD KEYBOARD PSRAM 32M FLASH ROM 128M TXIP TXIN TXQP TXQN RXIP RXIN RXQP RXQN SERCK SERLE SERDA RFOVL TXP OCTL RF DIRVER TXI Q RX I Q TXP SERCK SERLE SERDA OCTL IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB ARM DSP JTAG ICE DAICK DAIRN DAIDO DAIDI DAI DSPJTAG JTAG GPRS ACC PPI Programmable Peripheral I O ...

Page 32: ...41 C542 C543 C544 C545 C546 C547 C548 CN1003 CN101 CN102 CN302 CN303 CN401 CN403 DOMHOLE1 DOMHOLE3 F F502 G1 G2 G3 G4 GND L502 L503 L504 L505 L506 LED311 M101 MAIN_MIC MIC_HOLE OSC201 OSC501 Q201 R101 R102 R103 R104 R105 R106 R107 R111 R114 R120 R123 R125 R128 R130 R131 R134 R135 R136 R137 R138 R139 R140 R141 R144 R145 R146 R148 R153 R157 R158 R161 R162 R163 R165 R166 R167 R168 R169 R170 R171 R172...

Page 33: ... Main PCB Bottom Diagram 0 1 2 3 4 5 6 7 8 9 C150 C151 C320 C321 C322 C402 C417 C418 C430 C431 C432 C433 C434 C435 C436 C439 C440 C441 C442 C443 C444 C445 C446 C447 C461 C462 CN301 CN402 D401 F3 F4 F401 F402 F403 F406 F407 F408 L101 LED301 LED302 LED303 LED304 LED305 LED306 LED307 LED308 LED309 LED310 R159 R160 U107 ZD308 ZD309 ZD310 ZD311 ZD312 ...

Page 34: ...g s authorization 3 LCD PCB Top Diagram C11 C12 C13 C14 C16 C17 C18 C19 C20 C25 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C40 C41 C42 C44 C45 C46 CN12 CN13 CN14 L11 L13 L14 L15 Q12 Q13 Q14 Q15 R21 R22 R23 R37 R38 R39 R47 R48 R49 R50 SPK1 TP1 TP2 U11 U12 ZD1 ZD11 ZD12 ZD13 ZD14 ZD15 ZD16 ZD17 ZD18 ZD2 ZD3 ZD4 ZD5 ZD6 ZD7 ZD8 ZD9 ...

Page 35: ...tice SGH S341i PCB Diagrams 6 4 This Document can not be used without Samsung s authorization 4 LCD PCB Bottom Diagram CLR END_PWR INTERNET LED11 LED12 LED13 LED14 LEFT MENU OVER R15 R16 R17 R18 R19 R20 R40 R41 R42 R43 R44 R45 RIGHT SEND STO UNDER ZD19 ...

Page 36: ...onics Co Ltd AUG 2004 Printed in Korea Code No GH68 05745A 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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