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Samsung SGH-X495 Service Manual
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Samsung SGH-X495 Service Manual

Samsung SGH-X495 Service Manual

Samsung mobile phone service manual
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GSM TELEPHONE
GSM TELEPHONE
SGH-X495
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CONTENTS

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Summary of Contents for Samsung SGH-X495

  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-X495 CONTENTS GSM TELEPHONE Specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. June. 2005 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: GH68-07423A BASIC.

  • Page 3: Specification

    - 1 0 0 d B m TDM A M u x C el l Ra d iu s 3 5 K m 2 Km 2 K m SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 4 8±4dBm 11±3 dBm 8±4dBm 9±3dBm 6±4 dBm 6±4 dBm 4±4 dBm 7±3 dBm 4±4 dBm 5±3 dBm 2±5 dBm 2±5 dBm 0±5 dBm 0±5 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Circuit Description

    I and Q baseband signals are applied to the IQ modulator that shifts the modulation spectrum up to the transmit IF. It is designed for low harmonic distortion, low carrier leakage and high image rejection to keep the phase error as small as possible. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) and FET to modulate the intensity of a series of LED? s or to control a DC/DC converter that drives LCD backlight. This phone (SGH-X495) use PWM control to contrast the backlight brightness. - Clock Generato The Clock Generator (CG) generates all clocks for internal and external usage.
  • Page 7 PCF50601 to enable PCF50601. Twelve key LEDs are use the "VDD_KEY" as supply voltage. "FLIP" informs the status of folder (open or closed) to the OM6359. This uses the hall effect IC, A321ELH-SAMSUNG. A magnet under main LCD enables A321ELH-SAMSUNG.
  • Page 8 This system uses the 26MHz TCXO, TOH2600DGI4KRA, SEM. AFC control signal from OM6359 controls frequency from 26MHz x-tal. The clock output frequency of UAA3536 is 13MHz. This clock is connected to OM6359, YMU788. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Exploded Views And Parts List

    3 -1 SAMSUNG Proprietary-Contents may change without notice Th i s Do c u me n tc a n n o tb e u s e d wi t h o u tSa ms u n g ' s a u t h o r i z a t i o n...
  • Page 10 QMO 01 MO TOR DC-SG HZ130;DMJBRK20C,SGH-Z130, G H31-00154D 　 QMP01 　 PBA M AIN-SG HX495;SGH-X495,TMB,USA,PB GH92-02214A Q MW 02 PCT-W INDO W M AIN ;SGH-X495,ACRYLIC SHE GH72-19918B 　 QRF01 MPR-RF SHEET;SGH-X495,PC SHEET 0.3T, GH74-14435C 　 QSC01 　 MPR-SCREW SHEET;SG H-X495,PC SHEET 0.
  • Page 11 PM O-BATT LOCKER;SGH-X495,PC K2261,BL GH72-19954B PCT-W INDO W SUB;SGH-X495,ACRYIC SHEET GH72-19964A PM O-STOPPER;SGH-X495,POLY URETHANE,W GH72-21517B RMO -RUBBER TOP LCD A;SGH-X495,CR RUB GH73-04923A RMO -RUBBER TOP LCD B;SGH-X495,CR RUB GH73-04924A MPR-BOHO VIN YL SUB(S-R);SGH-X495,STA GH74-03429B MPR-BOHO VIN YL REAR;SG H-S342i,3M 418 GH74-12905A MPR-TAPE W INDOW SUB;SGH-X495,TESA #4...
  • Page 12 3 -4 SAMSUNG Proprietary-Contents may change without notice Th i s Do c u me n tc a n n o tb e u s e d wi t h o u tSa ms u n g ' s a u t h o r i z a t i o n...

  • Page 13: Electrical Parts List

    2203-006141 C129 C-CERAMIC,CHIP 2203-000438 C130 C-CERAMIC,CHIP 2203-006190 C132 C-CERAMIC,CHIP 2203-005503 C133 C-CERAMIC,CHIP 2203-000311 C134 C-CERAMIC,CHIP 2203-000233 C135 C-CERAMIC,CHIP 2203-000254 C136 C-CERAMIC,CHIP 2203-001153 C137 C-CERAMIC,CHIP 2203-000550 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 2203-000854 C218 C-CERAMIC,CHIP 2203-005061 C219 C-CERAMIC,CHIP 2203-005482 C220 C-CERAMIC,CHIP 2203-000254 C221 C-CERAMIC,CHIP 2203-006423 C222 C-CERAMIC,CHIP 2203-006423 C223 C-CERAMIC,CHIP 2203-005482 C224 C-CERAMIC,CHIP 2203-000438 C225 C-CERAMIC,CHIP 2203-005482 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 2203-005482 C330 C-CERAMIC,CHIP 2203-005482 C332 C-CERAMIC,CHIP 2203-006257 C333 C-CERAMIC,CHIP 2203-006562 C334 C-CERAMIC,CHIP 2203-006208 C335 C-CERAMIC,CHIP 2203-006208 C336 C-CERAMIC,CHIP 2203-000679 C337 C-CERAMIC,CHIP 2203-006053 C338 C-CERAMIC,CHIP 2203-006208 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 2203-006562 C435 C-CERAMIC,CHIP 2203-000995 C437 C-CERAMIC,CHIP 2203-006053 C438 C-CERAMIC,CHIP 2203-005482 C439 C-TA,CHIP 2404-001352 C501 C-CERAMIC,CHIP 2203-002443 C502 C-CERAMIC,CHIP 2203-005482 C503 C-CERAMIC,CHIP 2203-005482 C504 C-CERAMIC,CHIP 2203-000278 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 INDUCTOR-SMD 2703-002368 L113 INDUCTOR-SMD 2703-002201 L114 INDUCTOR-SMD 2703-002368 L115 INDUCTOR-SMD 2703-002203 L116 INDUCTOR-SMD 2703-002368 L117 INDUCTOR-SMD 2703-001708 L300 CORE-FERRITE BEAD 3301-001105 L400 CORE-FERRITE BEAD 3301-001362 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 2007-000144 R111 R-CHIP 2007-001308 R112 R-CHIP 2007-001308 R113 R-CHIP 2007-000566 R114 R-CHIP 2007-000148 R115 R-CHIP 2007-001288 R116 R-CHIP 2007-007311 R117 R-CHIP 2007-000566 R118 R-CHIP 2007-007699 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 2007-007001 R214 R-CHIP 2007-007142 R215 R-CHIP 2007-001284 R216 R-CHIP 2007-000148 R217 R-CHIP 2007-001284 R218 R-CHIP 2007-000162 R219 R-CHIP 2007-000162 R220 R-CHIP 2007-007107 R221 R-CHIP 2007-007001 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 2007-007981 R416 R-CHIP 2007-007529 R417 R-CHIP 2007-007489 R418 R-CHIP 2007-000138 R422 R-CHIP 2007-000138 R424 R-CHIP 2007-008542 R500 R-CHIP 2007-000162 R501 R-CHIP 2007-008055 R502 R-CHIP 2007-008531 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 2007-009084 R539 R-CHIP 2007-009084 R540 R-CHIP 2007-009084 R541 R-CHIP 2007-009084 R542 R-CHIP 2007-009084 R543 R-CHIP 2007-009084 R544 R-CHIP 2007-009084 R545 R-CHIP 2007-009084 R546 R-CHIP 2007-009084 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 U510 1205-002747 U511 1205-002747 U512 1205-002747 V401 DIODE-TVS 0406-001201 V402 DIODE-TVS 0406-001201 V501 VARISTOR 1405-001121 V502 VARISTOR 1405-001121 V504 VARISTOR 1405-001121 V505 VARISTOR 1405-001121 4-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 ZD300 DIODE-ZENER 0403-001427 ZD401 DIODE-TVS 0406-001201 ZD402 DIODE-TVS 0406-001197 ZD406 DIODE-TVS 0406-001201 ZD501 DIODE-ZENER 0403-001387 ZD502 DIODE-TVS 0406-001167 ZD503 DIODE-TVS 0406-001197 ZD504 DIODE-TVS 0406-001197 4-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 Electrical Parts List 4-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Block Diagrams

    VDD2 (1.35V min 3.45V max , 150mA ) PCS: Pout= 32.0 dBm , E = 52% VDD3 (1.35V min 3.45V max , 100mA ) VDD4 (1.35V min 3.45V max , 150mA ) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 SYSTEM CLOCK (13MHz) VCC_TX_BURST VDD1 RAMP VDD2 VDD3 VDD_VIB KEY_BOARD MIC_BIAS Li-Ion Battery (Standard) VDD_KEY VDD_AMP AVDD RTC_CLOCK Charging Circuit SIM CARD (32.768KHz) AVDD_TEMP BL_VDD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 27: Pcb Diagrams

    6. PCB Diagrams 6-1. PCB Top Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 PCB Diagrams 6-2. PCB Bottom Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 29: Flow Chart Of Troubleshooting

    Check the VDD2,VDD3 circuit = 2.85V? Check the clock generation circuit Check for the clock at C135 = 13MHz (related to U101) Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 A5 B5 A6 B6 B3 A3 VBAT AVDD_TEMP_2V65 VDD_VIB_3V05 VDD2_2V85 V_ISUP_2V5 VDD3_2V85 VDD1_1V8 C333 C334 C332 C335 C336 C337 C338 C339 C340 POWER MANAGERMENT UNIT(PMU IC) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Flow Chart of Troubleshooting C339 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 Check the circuit related to reset Is U201 Pin Check the U201 (memory CE) OK? Check the circuit around LCD & U201 (Short or not solder) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 PWM1 KBIO(6) R224 R223 KBIO6 PWM0 KBIO(5) KBIO5 KBIO(4) KBIO4 KBIO(3) KBIO3 KBIO(2) KBIO2 KBIO(1) KBIO1 KBIO(0) KBIO0 SIMIO KBIO(0:7) SIMCLK IT_PMU R225 VDD2_2V85 R226 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Resolder or replace U300 Check the circuit related to U300 pin 5 = "L"? CHG_ON signal Check the C300 Resolder or replace U300 ≒ 4.2V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 R300 +DCVOLT_5V 1 VL _CHG 8 END_OF_CHARGE R302 BATT MES_BATT C300 R303 3 GND _ACOK CHARGER_OK ISET CHG_ON C304 C303 C306 C307 C308 CHARGER IC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Check the 32k OSC CN300 pin3 in a few second After SIM card insert, Replace PBA CN300 pin 2 = "H(SIM_RST)"? Check the SIM Card 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Check the circuit Resolder the R400, R401, R404, R407, from U202 to MIC L400, L401, C408 and C412 Check the MIC Replace the MIC 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 MIC_P M400 C414 L401 C413 R402 MIC_N C412 C416 R404 C417 C418 VDD2_2V85 VDD2_2V85 R407 VDD2_2V85 R409 R412 JACK_IN EAR_SWITCH U401-1 U401-2 R415 R416 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 U406 ≒ 1.8V? Resolder U406 (When U406 operate) HEA1 pin 24,26 Check the circuit related to ≒ 1.8V? "SPK_P/SPK_N" signal Is Speaker working? Change the Speaker 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 R410 TESTI0 R411 TESTI1 TESTI2 C422 BCLK TESTI3 CLKI R413 R414 LINE_OUT C421 C423 EXTIN R417 EXTOUT GPIO C424 C425 AMP_IN C426 MELODY IC 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 Flow Chart of Troubleshooting 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Check the Dome sheet & Key rubber pushed, is it displayed on LCD? When one of the keys is Replace the PBA pushed, KBIO signal is OK? 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Change LCD module SPK +,- PAD = 1.5V? Check the soldering of the Modify the speaker wire soldering speaker wire Replace the Receiver Is Receiver working? 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Flow Chart of Troubleshooting 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 Menu? Check the U502 HEA1 pin 2 = 2.8V? HEA1 pin 19(HWR_N) Check the U202 21(HA(1)) is OK? Replace the LCD Module 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 Flow Chart of Troubleshooting TP212 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 Flow Chart of Troubleshooting 7-10. Key Back Light Key Backlight does not work Check the PMU related to "VDD_KEY" C333 = "H"? 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 Check & Resolder pin10,22,28 >=2.7V >= 1V pin20 >=4.0V RF PSU Part Check &Resolder U101, RF26MHz part, R104, R105 R130,R131,R132 ,R133 >= 1V Check U202 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 Flow Chart of Troubleshooting 7-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 U101 Pin6, 7, 8, 9 Check & Resolder pin4 >= 4.0V >= 500mV RF PSU part pin22, 28 >= 2.7V Resolder U101 or check Txcpo(R129) Check U202 7-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 Flow Chart of Troubleshooting 7-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 >= 2.7V >= 1V RF PSU Part pin4 >= 4.0V Check & Resolder U101, RF26MHz part R104, R105 R130,R131,R132 ,R133 >= 1V Check U202 7-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 Flow Chart of Troubleshooting 7-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 U101 Pin6, 7, 8, 9 Check & Resolder pin4 >= 4.0V >= 500mV RF PSU part pin22, 28 >= 2.7V Resolder U101 or check Txcpo(R129) Check U202 7-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 Flow Chart of Troubleshooting 7-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 >= 1V RF PSU part pin22, 28 >= 2.7V Check & Resolder U101, RF 26MHz part, R104, R105 R130,R131,R132, R133 >= 1V Check U202 7-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Flow Chart of Troubleshooting 7-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 U101 Pin6, 7, 8, 9 Check & Resolder pin4 >= 4.0V >= 500mV RF PSU part pin22, 28 >= 2.7V Resolder U101 or check Txcpo(R129) Check U202 7-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 Flow Chart of Troubleshooting 7-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 62 Flow Chart of Troubleshooting Transmitter & Receiver 7-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

This manual is also suitable for:

Sgh-x495