Samsung SGH-X460 Service Manual

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SERVICE
GSM TELEPHONE
G S M
T E L E P H O N E
Manual
1.
2.
3.
E xploded Views and Parts L ist
4.
5.
6.
7.
CONTENTS

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Table of Contents
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Summary of Contents for Samsung SGH-X460

  • Page 1: Table Of Contents

    G S M T E L E P H O N E Manual SERVICE GSM TELEPHONE CONTENTS Specification Circuit Description E xploded Views and Parts L ist E lectrical Parts L ist Block Diagrams PCB Diagrams Flow Chart of Troubleshooting...
  • Page 2 ELECTRONICS...
  • Page 3: Specification

    - 1 0 0 d B m TDM A M u x C el l Ra d iu s 3 5 Km 3 5 Km 2 Km 1- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 4: Gsm Tx Power Class

    9 ¡¾ 3dBm 4 ¡¾ 4 dBm 7 ¡¾ 3 dBm 5 ¡¾ 3 dBm 2 ¡¾ 5 dBm 0 ¡¾ 5 dBm 1- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5: Circuit Description

    The Mixer output is amplified with an analog programmable gain amplifier(PGA), which is controlled by AGAIN. The quadrature IF signal is digitized with high resolution A/D converts (ADC). 2- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 (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-X460) use PWM. 2- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 It is 24-pin connector. They are designed to use VBAT, V_EXT_CHARGE, TXD0, RXD0, RTS0, CTS0, JIG_REC, CHARGER_OK, RXD1, TXD1, AUX_MIC, AUX_SPK and GND. They connected to power supply IC, microprocessor and signal processor IC. 2- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 The hardware sequencer of YMU762MA3 directly interprets and plays blocks relevant to synthesis (playing music and reproducing ADPCM with FM synthesizer) that are included in data distributed in SMAF. 2- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 Signals in the OM6357 enable two memories. They use only one volt supply voltage, VDD3 in the PCF50601. This system uses Samsung's memory, KBB06A300M-T402. It is consisted of 128M bits flash NOR memory and 128M bits flash NAND memory and 32M bits UtRAM. It has 16 bit data line, HD[0~15] which is connected to OM6357.
  • Page 10 1. Cellular phone Exploded View- 1 QFU01 QLC67 QMO02 QFR01 QSP04 QFL01 QKP01 QCR04 QSC11 QMW01 QSC12 QVK01 QMP01 QME02 QIF01 QAN02 QVO01 QRE01 QRF01 QCR04 QBA18 3- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 GH72- 15078A QCR04 SCREW 6001- 001479 QBA18 BATTERY GH43- 01418A QSC11 FOLDER SCREW CAP R GH74- 09038A QSC12 FOLDER SCREW CAP L GH74- 09039A 3- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 3- 3. Serial Cable (GH39- 00261A) (GH39- 00217A) 3- 4. Power Supply Cable 3- 6. TA 3- 5. DATA CABLE (GH44- 00482A) (GH39- 00143B) 3- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 C502, C510, C511, C601 2007- 000162 R200, R202, R203, R303 2203- 000278 C602, C603 2007- 000162 R306, R307, R313, R315 2203- 000359 C150, C310 4- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14: E Lectrical Parts List

    2203- 005482 C414, C417, C428, C504 3722- 002067 EAR500 2203- 005482 C505, C509 4302- 001157 BAT400 2203- 006053 C124, C308, C421, C424 4- 2 4- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 VDD2 (1.35V min 3.45V max , 150mA ) VDD3 (1.35V min 3.45V max , 100mA ) VDD4 (1.35V min 3.45V max , 150mA ) 5- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16: Block Diagrams

    (32M bit) RAMP VDD2 FLASH VDD3 (256M bit) VDD_VIB MIC_BIAS Li-Ion Battery (Slim) VDD_KEY KEY_BOARD VDD_AMP AVDD Charging RTC_CLOCK SIM CARD Circuit (32.768KHz) AVDD_TEMP 5- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 6 . S G H - X 4 6 0 P C B D i a g r a m s 1. Main PCB Top Diagr am 6- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18: Pcb Diagrams

    PCB Diagrams 2. Main PCB Bot t om Diagr am 6- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 C heck for the clock at C 121 = 26M H z (related to O SC 101) Y es C heck the initial operation Y es E N D 7- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20: Flow Chart Of Troubleshooting

    AVDDVBA T AVDDVBA T AVD D AVDD AVD D AVDDS HF A HFAVBA T HFAVBA T HFAVD D HFAVD D VIBVBA T VIBVD D 7- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 (m em ory C E ) O K ? Y es C heck the circuit around L C D&U 302 (Short or not solder) Y es E N D 7- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 VSS_O VSS_P BS I CS I VDD_BB VDD_ D D1 4 VDD_REF VDD_VB C1 2 VSS_BB VDD_VBOUT D1 1 VSS_D VSS_REF VSS_VB VSS_VBOUT 7- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23: Charging Part

    C H G _O N signal Y es U 304 pin 7 R esolder or replace U 304 ¡Ö4.2V ? Y es E N D 7- 5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 MAX1508ETA C317 R318 470n F 2.7K R319 330K,1% MES_BATT V304 R320 220K AVDD_TEM P R321 100K,1% TEMP_PRODUCT V300 R322 NCP15WB473J04RC 100K,1% PCB_HOLE THERMISTER 7- 6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25: Sim Part

    C N 500 pin 2 = " H (SIM _R ST)" ? Y es C heck the SIMC ard Y es E N D 7- 7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 AVDDVBA T AVDDVBA T AVD D AVDD AVD D AVDDS HF A HFAVBA T HFAVBA T HFAVD D HFAVD D VIBVBA T VIBVD D 7- 8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27: Microphone Part

    200 to M IC R 502, and R 506 Y es C heck the M IC R eplace the M IC Y es E N D 7- 9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 H ZD503 uClamp0501 H ZD504 uClamp0501 H ZD505 uClamp0501 H ZD506 uClamp0501 H EARP_P 3-4I N 1-2I N AMP_N AMP_N SPK_N L503 BLM10A102SGPT 7- 10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 C heck the circuit related to ¡Ö1.8V ? " SPK _P/SPK _N "signal Y es Is Speaker working? C hange the Speaker Y es E N D 7- 11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 MELODY IC 6.8K R323 V.C1-1 ON/OFF C320 R324 100K 33PF 100K R312 R1,C1 C310 RSTO N 150PF C312 R314 100N F 2.2K EARP_H F 7- 12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31: Key Data Input

    W hen one of the keys is R eplace the PBA pushed, K B IOsignal is O K ? Y es E N D 7- 13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32: Receiver Part

    M odify the speaker wire soldering speaker wire Y es R eplace the R eceiver Is R eceiver working? Y es E N D 7- 14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 R eplace the PBA C N 600 pin 29 = 3.05V ? Y es R eplace the L C DM odule Y es E N D 7- 15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34: Key Back Light

    U 500 pin 3 = " H " ? Y es R esolder or replace U 500 U 500 pin 5 = " H " ? Y es E N D 7- 16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35: Gsm Receiver

    R F26M H z, R F PSU Part Y es R 119, R 120, R 122, R 123 >= 1V Y es C heck U 200 E N D 7- 17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36: Gsm Transmitter

    Y es C heck U 200 C heck U 100 pin 10, 22,23>=2.7V O K ? E N D R esolder U 100 7- 18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37: Dcs Receiver

    R F26M H z, R F PSU Part Y es R 119, R 120, R 122, R 123 >= 1V Y es C heck U 200 E N D 7- 19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38: Dcs Transmitter

    C heck U 200 C heck U 100 pin 10, 22,23>=2.7V O K ? E N D Y es R esolder U 100 7- 20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 EXTRES FESW 2 TXCP O FESW 1 TXCPVC C RFLOVC C TXON GNDTUNE RFTUNE RFVCOVCC SYNON RXO N IFVC C SYNVCC RFCPO GND1 7- 21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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