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Summary of Contents for Samsung SGH-E370
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Page 1: Table Of Contents
GSM TELEPHONE SGH-E370 GSM TELEPHONE CONTENTS Safety Precautions Specification Product Function Array course control Exploded View and Parts List MAIN Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting 10. Reference data 11. Disassembly and Assembly Instructions... -
Page 2: Safety Precautions
C O N T E N T S 1. Safety Precautions 1-1. Repair Precaution ................1-1 1-2. ESD(Electrostatically Sensitive Devices) Precaution ......1-2 2. Specification 2-1. GSM General Specification ..............2-1 2-2. GSM Tx Power Class ..............2-2 3. Product Function 4. Array course control 4-1. - Page 3 C O N T E N T S 9. Flow Chart of Troubleshooting 9-1. Power On..................9-1 9-2. Initial ..................9-3 9-3. Charging Part................9-5 9-4. Sim Part..................9-7 9-5. Microphone Part................9-9 9-6. Speaker Part(Melody)..............9-11 9-7. Key Data Input................9-13 9-8. Receiver Part................9-14 9-9. Back Light (for Color Main LCD)..........9-15 9-10.
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Page 4: Repair Precaution
● Don't use as you pleases after change other material than replacement registered on SEC System. Otherwise engineer in charge isn't charged with problem that you don't keep this rules. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 5: Esd(Electrostatically Sensitive Devices) Precaution
● You must maintain electric contact between ESD and place due to be set up until ESD is connected completely to the proper place or a circuit board. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 6: Gsm General Specification
2. Specification 2-1. GSM General Specification GSM900 E GS M 9 0 0 DCS1800 PCS1900 Phase 1 Phase 2 Phase 1 Fr eq. 890~915 880~915 1710~1785 1850~1910 Band[MHz] 935~960 925~960 1805~1880 1930~1990 Uplin k/Down link 0~124 & ARF CN ra nge 1~124 512~885 512~810... -
Page 7: Gsm Tx Power Class
Speclflcation 2-2. GSM Tx Power Class TX Power TX Power TX Power GSM900 DCS1800 PCS1800 control level control level control level 30±3 dBm 33±2 dBm 30±3 dBm 31±2 dBm 28±3 dBm 28±3 dBm 29±2 dBm 26±3 dBm 26±3 dBm 27±2 dBm 24±3 dBm 24±3 dBm 25±2 dBm... -
Page 8: Product Function
-65536 Color TFT Screen (128×160) -Video Recording & Messaging -Music Player(MP3/AAC/AAC+) -Bluetooth Woreless Technology -Multimedia Message Service (MMS) -E-mail -Voice recorder -Java / WAP2.0 -Tri-band(900/1800/1900MHz) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 9 Product Function SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 10: Array Course Control
4. Array course control 4-1. Software Downloading Test Jig (GH80-03306A) Test Cable(GH39-00337C) Serial Cable(CSA LL64151-A) Power Supply Cable SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 11 - if the binary file wanted, check only 'BIN' - if the tfs file wanted, check only 'TFS' - if all the files wanted, check 'BIN+TFS' SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 12 Array course control 3. Select the file(s) what you want to download SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 13 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 14: Cellular Phone Exploded View
QAR01 QCA02 QLC01 QMP02 QME01 QME02 QMP01 QPC01 QMI01 QVK01 QCR57 QME10 QRF03 QCK01 QFL01 QRE01 QCR12 QSC08 QIF01 QCR05 QSC07 QHI01 QRF01 QVO01 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 15: Cellular Phone Parts List
QFL01 MEC-CASE SLIDE LOWER GH75-08780A QCR57 SCREW-MACHINE 6001-002001 QHI01 ASSY-COVER-SLIDE MODULE GH98-00957A QFR01 MEC-CASE FRONT GH75-08775A QMI03 ASSY-CUSHION-HOLDER MIC GH98-00956A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 16 MPR-TAPE MAIN YAMAHA SHORT GH74-23685A MPR-TAPE MAIN J TAG GH74-23686A MPR-TAPE SLIDE MODULE EMI GH74-23687A MPR-TAPE SLIDE MODULE EMI GH74-23687A MPR-VINYL BOHO 3X4 KEY GH74-23688A MEC-HANGER GH75-03673H SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 17 Exploded view and Part List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 18: Electrical Parts List
2203-000466 C137 C-CER,CHIP 2203-000530 C147 C-CER,CHIP 2203-002668 C200 C-CER,CHIP 2203-000254 C201 C-CER,CHIP 2203-005482 C202 C-CER,CHIP 2203-005482 C203 C-CER,CHIP 2203-000812 C204 C-CER,CHIP 2203-005482 C205 C-CER,CHIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 19 2203-000254 C406 C-CER,CHIP 2203-005482 C407 C-CER,CHIP 2203-000550 C408 C-CER,CHIP 2203-006257 C409 C-CER,CHIP 2203-000233 C410 C-CER,CHIP 2203-000550 C412 C-CER,CHIP 2203-000254 C414 C-CER,CHIP 2203-006562 C416 C-CER,CHIP 2203-006257 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 20 2203-002443 C704 C-CER,CHIP 2203-005482 C705 C-CER,CHIP 2203-000233 C706 C-CER,CHIP 2203-005482 C707 C-CER,CHIP 2203-005682 C708 C-CER,CHIP 2203-005482 C709 C-CER,CHIP 2203-005682 C710 C-CER,CHIP 2203-006257 C711 C-CER,CHIP 2203-006257 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 21 2703-002176 L400 BEAD-SMD 3301-001120 L401 INDUCTOR-SMD 2703-002653 L600 BEAD-SMD 3301-001438 L601 BEAD-SMD 3301-001438 L613 INDUCTOR-SMD 2703-001513 L614 INDUCTOR-SMD 2703-001513 L615 INDUCTOR-SMD 2703-001513 L700 BEAD-SMD 3301-001729 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 22 2007-000932 R118 R-CHIP 2007-000932 R119 R-CHIP 2007-000140 R120 R-CHIP 2007-000171 R121 R-CHIP 2007-000171 R122 R-CHIP 2007-000171 R123 R-CHIP 2007-000171 R124 R-CHIP 2007-000171 R125 R-CHIP 2007-001317 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 23 2007-000138 R508 R-CHIP 2007-007107 R509 R-CHIP 2007-000148 R510 R-CHIP 2007-000152 R511 R-CHIP 2007-000137 R512 R-CHIP 2007-007573 R513 R-CHIP 2007-007334 R514 R-CHIP 2007-007875 R515 R-CHIP 2007-007489 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 24 TCX100 OSCILLATOR-VCTCXO 2809-001287 TR500 TR-DIGITAL 0504-001151 U100 IC-PWM CONTROLLER 1203-003443 U101 IC-TRANSCEIVER 1205-002817 U102 IC-POSI.FIXED REG. 1203-003754 U103 IC-DC/DC CONVERTER 1203-003978 U200 IC-CMOS LOGIC 0801-003031 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 25 0406-001201 ZD602 DIODE-TVS 0406-001194 ZD603 DIODE-TVS 0406-001194 ZD700 DIODE-TVS 0406-001201 ZD701 DIODE-TVS 0406-001201 ZD702 DIODE-TVS 0406-001201 ZD703 DIODE-TVS 0406-001201 ZD704 DIODE-TVS 0406-001201 ZD705 DIODE-TVS 0406-001194 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 26: Block Diagrams
7. Block Diagrams 7-1. RF Solution Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 27 MV3020SAQ VINT IOVDD RAMP VDD_RX_TX VCC_SYN SYSTEM CLOCK (26M) MIC_BIAS CPVDD Li-Ion Battery KEY_BOARD (Slim,Standard) SIMEN Bluetooth VCHG RTC_CLOCK Charging Circuit SIM CARD (32.768KHz) VSAVE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 28: Pcb Diagrams
8. PCB Diagrams 8-1. Main PCB Diagram... - Page 29 PCB Diagrams Bottom...
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Page 30: Sub Pcb Diagrams
PCB Diagrams 8-2. Sub PCB Diagram... - Page 31 PCB Diagrams Bottom...
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Page 32: Flow Chart Of Troubleshooting
Check the +VDD_GSM_CORE circuit = 1.9V? Check for the clock at C319 Check the clock generation circuit (related to U101) = 26MHz Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 33 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 34: Initial
U200 pin 2 (RSTON) ="H"? Check the circuit related to reset U302 pin 4 Check the U302 Check the 16bit data signal & memory CE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 35 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 36: Charging Part
Check the circuit related to U500 pin 3 = "L"? AUX_ON signal AUX_ON signal Check the U500 pin 10 Resolder or replace U503 Resolder or replace U503 ≒ 4.2V 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...
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Page 38: Sim Part
Check the Clock pin3 of SIM400 in a few second After SIM card insert, Replace PBA SIM400 pin 2 = "H(SIM_RST)"? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 39 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 40: Microphone Part
Resolder MIC from MIC Check the circuit Resolder the C605, C611, R602, R604 R605, U600 from UCP201 to MIC Check the MIC Replace the MIC SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 41 Flow Chart of Troubleshooting 9-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 42: Speaker Part(Melody)
Pin 4 of U304 (26MHz) (related to U301 and U303) U301 pin 17,18 ≒ 1.8V? Resolder U301 (When U301 operate) Is Speaker working? Change the Speaker 9-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 43 Flow Chart of Troubleshooting 9-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 44: Key Data Input
KBIO signal is OK? KEY_COL(0:4) KEY_COL(4) KEY_COL(3) KEY_COL(2) KEY_COL(1) KEY_COL(0) KEY_ROW(0:2) KEY_ROW(0) STAR1 DIGIT7 DIGIT4 DIGIT1 DIGIT2 KEY_ROW(1) DIGIT10 DIGIT9 DIGIT6 DIGIT3 DIGIT5 KEY_ROW(2) SHARP1 DIGIT8 KEY_MAP 9-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 45: Receiver Part
Flow Chart of Troubleshooting 9-8. Receiver Part Receiver does not work Resolder UCP201 or change PBA Is Receiver working? Replace the Receiver Is Receiver working? 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 46: Back Light (For Color Main Lcd)
U100(SUB PCB) PIN 3 = H ? Resolder UCP201 or change PBA Check the U100 & the related circuit U100 PIN 1 = 7V ? Replace the LCD Module 9-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 47 Flow Chart of Troubleshooting 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 48: Key Back Light
Flow Chart of Troubleshooting 9-10. Key Back Light Main Key LED does not work Check the UCP201 related to U700 pin1 = H ? "KEY_LED_ON" 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 49: Camera Part
41 = H ? Reconnect SLC700 Check U304(pin2, pin4) related to C319 = 26MHz? 26Mhz and R317 Is there another problem? Replace the camera module 9-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 50 Flow Chart of Troubleshooting 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 51: Gsm Receiver
30 >= -70dBm Check & Resolder U101 pin 7,8,9,10 U101 pin 23,26,31 U101, R125 >= 1V >=2.8V RF26MHz, RF PSU Part Resolder U101 Check UCP201 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 52: Gsm Transmitter
Resolder R110,R111,R112 -15dB Check & Resolder RFLO U101 pin 7,8,9,10 U101 pin 23,26,31 signal, RF13MHz, >= 1V >=2.8V RF PSU Part Resolder U101 Check UCP201 9-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 53: Dcs Receiver
36 >= -70dBm Check & Resolder U101 pin 7,8,9,10 U101 pin 23,26,31 U100, R113 >= 1V >=2.8V RF26MHz, RF PSU Part Resolder U101 Check UCP201 9-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 54: Dcs Transmitter
Resolder R116, R117, R118 -15dB Check & Resolder RFLO U101 pin 23,26,31 U101 pin 7,8,9,10 signal, RF13MHz, >=2.8V >= 1V RF PSU Part Resolder U101 Check UCP201 9-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 55: Pcs Receiver
33 >= -70dBm Check & Resolder 101 pin 7,8,9,10 U101 pin 23,26,31 U100, R113 >= 1V >=2.8V RF26MHz, RF PSU Part Resolder U101 Check UCP201 9-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... -
Page 56: Pcs Transmitter
<= -15dBm Check & Resolder RFLO U101 pin 7,8,9,10 U101 pin 23,26,31 signal, RF13MHz, >= 1V >=2.8V RF PSU Part Resolder U101 Check UCP201 9-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 57 Flow Chart of Troubleshooting 9-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 58: Reference Data
PS : Pilot Symbol QPSK: Quadrature Phase Shift Keying RS : Reed-Solomon SI : Service Information TDM : Time Division Multiplexing TS : Transport Stream 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 59 Reference data 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 60: Disassembly And Assembly Instructions
Separate the Main PBA from Unscrew 4 screws in Rear Lower Front Case with FPCB Be careful separate this point Unscrew marked 4 points 11-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 61 Unscrew 4 screws in Sub Lower Case Separate the Sub Lower Unscrew marked 4 points Separate the Lower cover from SUB upper Separate the SUB PBA Separate the SUB PBA 11-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 62: Assembly
Sub Upper case on the Sub Upper Case Screw to the Sub Lower Insert Sub Lower to Sub Upper screwing 4 point 11-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 63 Be careful this Point 1) Insert the FPCB 2) Assemble the Main PBA Assemble the Rear Case Screw the rear cover Screw marked 4 points 11-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 64: Fpcb Kit Assembly
1.Be care of damaging SUB PBA when using a pair of tweezers 1. Reattatch the insulating tape when located wrong. 2. Soldering tempreature : 350~380℃ 11-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 65 ※ Caution 1.Be care of damaging MAIN PBA when using a pair of tweezers 1. Be care of inseting not enough and being torn. 11-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 66 1.Be care of damaging MAIN PBA when using a pair of tweezers . EMI tape should not lean to one side. 2.Both side of tape should not be crossed out of the PBA 11-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
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Page 67: Lcd Kit Assembly
※ Caution Be care of damaging FPCB when using a pair of tweezers. Be care of damaging LCD when using a pair of tweezers. 11-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization... - Page 68 1. Reattatch the insulating tape when located wrong. Be care of damaging SUB PBA when using a pair of tweezers. 2. The TAPE should be located accurately. 11-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 69 1. Reattatch the insulating tape when located wrong. Be care of damaging SUB PBA when using a pair of tweezers. 2. The TAPE should be located accurately. 11-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
- Page 70 ⓒ This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No.: GH68-11216A 2006. 04. Rev.1.0...