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Samsung SGH-Z540 Service Manual

Umts telephone
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Download this manual See also: User Manual
UMTS TELEPHONE
SGH-Z540
1.
Specification
2.
Circuit Description
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
Block Diagrams
6.
PCB Diagrams
7.
Flow Chart of Troubleshooting

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Summary of Contents for Samsung SGH-Z540

  • Page 1 UMTS TELEPHONE SGH-Z540 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. March. 2006 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.: GH68-09641A BASIC.

  • Page 3: Gsm General Specification

    (max +33dBm) (max +30dBm) (max +30dBm) (max + 24dBm) Se nsitivity -10 2dBm -10 0dBm -10 0dBm -1 06.7d Bm TDMA Mux Cell Radiu s 35Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Gsm Tx Power Class

    11±3 dBm 8±4dBm 8±4dBm 6±4 dBm 9±3dBm 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

    The single-band UHF VCO is a key component within its phase-locked loop; VCO performance directly impacts PLL and transceiver performance. UMTS Rx LO signal is generated from this VCO's output. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 - PLL#2 and an external VCO supports EGSM Rx and Tx, DCS Rx and Tx, and UMTS Rx 4) Transceiver LO generation and distribution circuits - EGSM-900 Rx and Tx - DCS-1800 Rx and Tx - UMTS-2100 Tx SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 This uses the hall effect IC, EM-1681-FT 2-3. EMI ESD Filter This system uses the EMI ESD filter, ECLAMP2378P to protect noise from IF CONNECTOR part. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 Total active pixel is 1280H x 1024V. The VGA camera is a highly integrated CMOS color image sensor implemented by Micron COMS sensor process realizing high sensitivity and wide dynamic range. Total active pixel is 656H x 488V. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Exploded View And Parts List

    QLC01 QMP01 QME06 QCB01 QME04 QAR01 QBM01 QAN02 QMO01 QCR12 QHI01 QRE01 QFL01 QCR12 QSC13 QSC14 QRF01 QCR12 QAN06 QSC01 QCR04 QSC13 QMW04 QBA01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Parts List

    　 QHI01 MEC-HINGE GH75-04334D QFR01 　 MEC-CASE FRONT FOLDER GH75-08619A 　 QCK01 PMO-CAMERA KEY GH72-26932A 　 QIF01 PMO-COVER IF GH72-26917A 　 QVO01 PMO-VOLUME KEY GH72-26931A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 MPR-TAPE BLUE SHIELD GH74-20844A MPR-CUSHION MP3 KEY GH74-21083A MPR-CUSHION MOTOR GH74-21084A MPR-TAPE MIC MASK GH74-21217A MPR-VINYL BOHO SIDE KEY GH74-21328A MPR-SPONGE UPPER GH74-21434A MEC-HANGER(BLK) GH75-08867E SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Disassembling Manual

    1) When you remove the tape, pay attention to damage 2) Pay attention to damage of the wire. of the INTENNA WIRE. 2) Be careful handling INTENNA. (Don't touch intenna pattern.) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 1) Pay attention to a finger mark and dust of the LCD. 1) When disjointing UPPER, pay attention to damage of 2) When you use tweezers, Be careful a damage of the wire. component. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 1) When you remove the LCD, pay attention to damage of LCD F-PCB,LCD component, finger mark, dust. 2) When you remove the CAMERA, pay attention to damage of CAMERA F-PCB and CAMERA. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 15: Assembling Manual

    1) Insert SPK ASS'Y F-PCB in the Connector. (By Silk Base Line) 2) Do not bond too much and control the amount of bond not to be high. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 3) Put the ANT CABLE through the passage of FRONT. 4) Don't keep being shown the Ant Cable after adhering Ant TAPE. 1) Attach tape by Guide line. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 1) On inserting LCD, be careful for foreign substance. 2) Take care that MOTOR wire do not interfere with screw boss. 3) Notice that FPCB should not be cracked on inserting CAMERA. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 1) Firstly, connect UPPER end hook with LOWER end hook. 2) Be care for foreign substance and connect Lower hooks. 3) Connect side hooks. 1) Notice that foreign substances do not go in. 3-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 2) After inserting hinge dummy, assemble pushing hinge on the other part with wooden pinset or hand. 3) Check folder connection by repeating open and close two or three times. 3-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 1) After aligning REAR upper hook part with FRONT upper 1) Screw down 4 points. hook part, cover REAR and assemble. → Check the hook connection by pushing the upper part of REAR 3-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 → Attach tape according to red lines. Discription SEC CODE SEC Design quantity TAPE LCD MASKING 2 GH74-20204A 39.7 x 11.62 x 0.08T 3-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 3-6. Test Jig (GH80-03308A) 3-6-1. RF Test Cable 3-6-2. Test Cable 3-6-3. Serial Cable (GH39-00397A) 3-6-4. Power Supply Cable 3-6-5. DATA CABLE 3-6-6. TA 3-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 23: Electrical Parts List

    2203-006423 C140 C-CER,CHIP 2203-006047 C141 C-CER,CHIP 2203-006194 C142 C-CER,CHIP 2203-006423 C143 C-CER,CHIP 2203-006423 C144 C-CER,CHIP 2203-006617 C145 C-CER,CHIP 2203-006423 C146 C-CER,CHIP 2203-006423 C147 C-CER,CHIP 2203-006617 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 2203-006708 C238 C-CER,CHIP 2203-006708 C239 C-CER,CHIP 2203-006708 C240 C-CER,CHIP 2203-006423 C241 C-CER,CHIP 2203-006423 C242 C-CER,CHIP 2203-006423 C243 C-CER,CHIP 2203-006423 C244 C-CER,CHIP 2203-006423 C248 C-CER,CHIP 2203-006562 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 2203-006423 C506 C-CER,CHIP 2203-000812 C507 C-CER,CHIP 2203-006361 C508 C-CER,CHIP 2203-000812 C510 C-CER,CHIP 2203-006423 C600 C-CER,CHIP 2203-006305 C601 C-CER,CHIP 2203-005682 C602 C-CER,CHIP 2203-006208 C603 C-CER,CHIP 2203-005482 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 2203-005736 C711 C-CER,CHIP 2203-005736 C712 C-FILM,SMD-PPS 2301-001512 C713 C-CER,CHIP 2203-006423 C714 C-CER,CHIP 2203-000836 C715 C-CER,CHIP 2203-005725 C716 C-CER,CHIP 2203-006423 C717 C-CER,CHIP 2203-006423 C718 C-CER,CHIP 2203-005682 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 2203-000330 C806 C-CER,CHIP 2203-000330 C807 R-CHIP 2007-000171 C809 C-CER,CHIP 2203-000330 C810 C-CER,CHIP 2203-000995 C812 C-CER,CHIP 2203-001383 C816 C-CER,CHIP 2203-006423 C817 C-CER,CHIP 2203-005736 C818 C-CER,CHIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 HEADER-BOARD TO BOARD 3711-005550 HDC400 HEADER-BOARD TO BOARD 3711-005367 HDC401 HEADER-BOARD TO BOARD 3711-005456 HDC702 HEADER-BOARD TO BOARD 3711-005976 IFC500 SOCKET-INTERFACE 3710-002306 L200 INDUCTOR-SMD 2703-002840 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 2007-008542 R108 R-CHIP 2007-008419 R109 R-CHIP 2007-008049 R110 R-CHIP 2007-008419 R111 R-CHIP 2007-009112 R112 R-CHIP 2007-008055 R113 R-CHIP 2007-007314 R121 R-CHIP 2007-008516 R122 R-CHIP 2007-009170 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 2007-008419 R507 R-CHIP 2007-008419 R600 R-CHIP 2007-000171 R601 R-CHIP 2007-007318 R602 R-CHIP 2007-008542 R603 R-CHIP 2007-001319 R604 R-CHIP 2007-000171 R605 R-CHIP 2007-008542 R607 R-CHIP 2007-001325 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 2007-000138 R730 R-CHIP 2007-008045 R731 R-CHIP 2007-001217 R732 R-CHIP 2007-001217 R800 R-CHIP 2007-008045 R801 R-CHIP 2007-000171 R802 R-CHIP 2007-007491 R803 R-CHIP 2007-007316 R804 R-CHIP 2007-008213 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 U702 IC-SWITCH 1205-002724 U800 IC-POWER AMP 1201-002305 U801 IC-RECEIVER 1205-002781 U810 IC-SWITCH 1205-002874 U813 C-CER,CHIP 2203-006423 U814 C-CER,CHIP 2203-006423 U815 C-CER,CHIP 2203-005683 UCD700 IC-TRANSCEIVER 1205-002645 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 0406-001208 ZD402 DIODE-TVS 0406-001208 ZD403 DIODE-TVS 0406-001203 ZD501 DIODE-TVS 0406-001208 ZD502 DIODE-TVS 0406-001208 ZD503 DIODE-ZENER 0403-001547 ZD504 DIODE-TVS 0406-001203 ZD505 DIODE-TVS 0406-001203 ZD506 DIODE-TVS 0406-001203 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 Electrical Parts List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 35: Block Diagrams

    5. Block Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 36: 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 37 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 38: Flow Chart Of Troubleshooting

    C217(VREG_MSMA) = 2.6V? C210(VREG_TCXO) = 2.8V? Check for the clock at Check the clock generation circuit C207= 19.2MHz (related to OSC700) Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Flow Chart of Troubleshooting Power On SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 Flow Chart of Troubleshooting VREG_RFTX_2.8V C752 C753 OSC700 OUT1 R719 MOD_CP OUT2 R721 C755 C756 3 6 7 C757 R728 DCS_VCO_EN_N R730 GSM_VCO_EN_N C759 C760 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 Initial Failure TP 201 or TP "RST" (PON_RESET_N) ="H"? Check the PMIC Is HDC400 pin 11, 25 Check the LCD RESET Circuit (LCD RESET) OK? SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 45: Sim Part

    SIM200 pin3 in a few second After SIM card insert, Replace PBA Replace PBA SIM 200 pin 2 = "H(SIM_RST)"? Check the SIM Card Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 Flow Chart of Troubleshooting 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 48: Speaker Part(Melody)

    Pin 1 of U600 (related to U401 and U600) (13.5MHz) U600 pin 4 ≒ 2.7V? Resolder u100 (When u100 operate) Is Speaker working? Change the Speaker 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 MELODY_RESET /RST D2(5) U600 D2(6) PLLC D2(7) R607 SPOUT2 VREF SPOUT1 C624 C625 C626 C627 R611 HPOUT_L R612 HPOUT_R VREG_MSMP_2.6V U401 EAR_SW KYPD_MEMO KEYSENSE(4) 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 50: Microphone Part

    Check the connection Resolder MIC from MIC Resolder the Check the circuit from UCP100 to MIC R601,R603,R609,R610,C604,C611,C616 and C621 Check the MIC Replace the MIC 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 Flow Chart of Troubleshooting Microphone 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 52: Key Data Input

    Check the Dome sheet & Key Pad pushed, is it displayed on LCD? When one of the keys is Replace the PBA pushed, KEY_IO signal is OK? 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 53: Receiver Part

    Check soldering of the Replace UCP100 HDC400 pin4, pin6 Check the soldering of the RCV wire Modify the RCV wire soldering Is Receiver working? Replace the Receiver 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 Flow Chart of Troubleshooting 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 Flow Chart of Troubleshooting 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 56: Back Light (For Color Main Lcd)

    Is BACKLIGHT set Set BACKLIGHT on "15second ON" "15second ON" in the Menu? Replace or Resolder L400 L400 >= 3.3V? Replace the LCD Module 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 Flow Chart of Troubleshooting 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 Flow Chart of Troubleshooting 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 59: Key Back Light

    Key Backlight does not work Is BACKLIGHT set Set BACKLIGHT on "15second ON" "15second ON" in the Menu? HDC401 pin 15 Replace KeyPCB Module Vpin15 >= 3.3V ? 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 KYPD_15 KYPD_17 KEYSENSE(1) KEYSENSE(0) KEYSENSE(3) 11 11 12 12 KEYSENSE(2) 15 15 16 16 KEY_EL_DRV MIC+ MIC- 19 19 20 20 ZD403 KEY CONNECTOR 7-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 61: Camera Part

    J7pin1,pin12 = 2.8V? Check the voltage of U3 J8pin7,pin16 = 2.8V? HDC400pin56 = 25MHz? Replace UCP100 Is there another problem? Replace the camera module 7-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 62 Flow Chart of Troubleshooting 7-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 63: Gsm Receiver

    RF input : CH center freq +67.7kHz Amp : -50dBm C735 Resolder U702 >= -60dBm L713 Resolder F702 >= -65dBm (GSM SAW) Resolder U700 (RTR6250) 7-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 64 L705 L706 L707 PCS_RXM F701 L708 C733 DCS_RXP OUT 4 L710 L711 L712 DCS_RXM F702 L713 C735 GSM_RXP OUT 4 L714 L715 L716 GSM_RXM 7-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 65: Gsm Transmitter

    (PAM) OSC700(TXVCO) Resolder OSC700 pin1 (TXVCO) >= 2dBm U701(PAM) pin11 Resolder U701(PAM) >= 20dBm U702(ASM) Resolder U702 pin22 (ASM) >= 25dBm Check UCP100 (MSM6250A) 7-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 66 R731 R732 ANT_SWITCH UMTS_ANT R705 VREG_RFRX_2.8V R706 GSM_ANT_SEL0_N CTL-A U702 R707 GSM_ANT_SEL1_N CTL-B R708 GSM_ANT_SEL2_N CTL-C 30 GND 32 GND C722 C723 C724 C725 7-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 67: Dcs Receiver

    L705 L706 L707 PCS_RXM F701 L708 C733 DCS_RXP OUT 4 L710 L711 L712 DCS_RXM F702 L713 C735 GSM_RXP OUT 4 L714 L715 L716 GSM_RXM 7-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 68: Dcs Transmitter

    (PAM) OSC700(TXVCO) Resolder OSC700 pin5 (TXVCO) >= 2dBm U701(PAM) pin15 Resolder U701(PAM) >= 15dBm U702(ASM) Resolder U702 pin22 (ASM) >= 20dBm Check U100 (MSM6250) 7-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 69 R731 R732 ANT_SWITCH UMTS_ANT R705 VREG_RFRX_2.8V R706 GSM_ANT_SEL0_N CTL-A U702 R707 GSM_ANT_SEL1_N CTL-B R708 GSM_ANT_SEL2_N CTL-C 30 GND 32 GND C722 C723 C724 C725 7-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 70: Pcs Receiver

    L705 L706 L707 PCS_RXM F701 L708 C733 DCS_RXP OUT 4 L710 L711 L712 DCS_RXM F702 L713 C735 GSM_RXP OUT 4 L714 L715 L716 GSM_RXM 7-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 71: Pcs Transmitter

    (PAM) OSC700(TXVCO) Resolder OSC700 pin5 (TXVCO) >= 2dBm U701(PAM) pin15 Resolder U701(PAM) >= 15dBm U702(ASM) Resolder U702 pin22 (ASM) >= 20dBm Check U100 (MSM6250) 7-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 72 R731 R732 ANT_SWITCH UMTS_ANT R705 VREG_RFRX_2.8V R706 GSM_ANT_SEL0_N CTL-A U702 R707 GSM_ANT_SEL1_N CTL-B R708 GSM_ANT_SEL2_N CTL-C 30 GND 32 GND C722 C723 C724 C725 7-35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 73: Wcdma Receiver

    C801 Check & Resolder U702 >= -60dBm (ASM) C807 Resolder F801 >= -65dBm (DPLX) C821 Resolder F800 >= -60dBm (WRX SAW) Resolder U801 (RFR6250) 7-36 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 74: Wcdma Transmitter

    >= -5dBm U800(WPAM) pin8 Check & Resolder U800 >= 20dBm (WPAM) C801 Resolder F203 >= 20dBm (DPLX) C702 Check & Resolder U702 >= 20dBm (ASM) 7-37 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 75 PMIXM VDDA4 C828 L805 C829 PMIXP VDDA3 VDDRF3 UMTS_TUNE UMTS_RXP C831 L806 L807 L808 VREG_TCXO_2.8V C832 C833 VREG_RFRX_2.8V ULNA_OUT C834 C835 ULNA_IN C836 C837 7-38 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 76 0.5PF 23 46 79 10 12 VREF C814 GND1 GND2 SFXG50KC701 C815 R801 C818 VREG_RFTX_2.8V E2 4 PA_ON B2 5 C827 1 E1 Q800 7-39 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 77 Flow Chart of Troubleshooting 7-40 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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