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GSM TELEPHONE SGH-S300 Manual SERVICE GSM TELEPHONE CONTENTS Specification Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting and Circuit Diagrams...
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2. SGH-S300 Exploded View and its Parts list 1. Cellular phone Exploded View SAMSUNG Proprietary-Contents may change without notice...
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SGH-S300 Exploded view and its Part list 2. Cellular phone Parts list Description SEC.CODE REMARK DUAL WINDOW LCD GH72-05886A FOLDER UPPER GH75-02422A FOLDER DUMMY GH75-02341A GH07-00230A SPEAKER 3001-001341 MOTOR 3101-001315 FOLDER LOWER GH75-02423A WINDOW LCD GH72-05887A SCREW 6001-000464 SCREW CAP...
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SGH-S300 Exploded view and its Part list 3. Test Jig (GH80-00865A) 3-1. RF Test Cable 3-2. Test Cable 3-3. Serial Cable (GH39-00090A) (GH00-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE 3-6. TA (GH39-00159A) (GH44-00184A) SAMSUNG Proprietary-Contents may change without notice...
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6. SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 1.Baseband 1. Power ON 'Power On' does not work Check the current consumtion more than Downloader again 100mA Check the Vbat(battery+ O ) Charge the Battery Voltage more than 3.3V Check the pin...
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 2. Initial Initial Failure Check the signal at the pin 28 of U100 is Check U100 "H igh" when the phone is boot on Check the pin 22 of Check the U700 U100 is "H igh"...
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 4. Charging Part Abnormal charging part Check the pin 17,18 of Check U100 CN302 VEXT is > 4V? Check the pin 2 of U103 Check the U700 is "LOW"? Check the pin 3 of Q101 Check the Q101 is "LOW"?
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 5. Microphone Part Microphone does not work Check the assembled Reass emblage microphone status of microphone. Check the reference resolder or change voltage on mic path C400,R428,R409,R405,R406) C418 =2.5V Is microphone ok? Check U700 6.
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 7. Back Light Backlight does not work Check the soldered status of EL pad Backlight "ON" mode in Select backlight "ON" mode the meue? Check the PIN 3 of Check the U601 200-1 = 2.8V?
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 8.Alert Tone Abnormal Alert tone Alert tone On by pushing the key *#0289# Check the PIN 17, 18 of Check the circuit related to CN200-1 U400,U401 Is there alert wave? Check the connection...
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 3. PCS Receiver CONTINUOS RX ON RF IN PUT : 698CH Cell power : -50dBm NORMAL CONDITION CHECK catch the channel? C1012,L1015,C1002 contact? CN1001 F1002 CHECK resolder or change pin13 ≥ -65dBm?
SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 6. PCS Transmitter CONTINUS TX ON CONDITION F1002 F 1002 pin 13 U700,U702 pin 9 : 2.8 V? about 2~3 dBm? check & change MS TX level 12 CH : 698 RBW : 100KHz...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams TH1X 5 CN10 0 VCC_1.8A VCCD VPA C VOSC VCCA VCCB VRTC C103 C105 C104 33PF C108 C106 C107 100N F 2.2U F 100N F 33PF 33PF U100 R10 6 CREF 34...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams F203 F201 OUT 5 OUT 5 D(8) D(8)_F O A(2) A(2)_FO D(10) D(10)_FO GLCD_EN GLCD_EN_F O CP_WE N CP_TD O D(12) D(12)_FO CP_WE N CP_WEN_FO RESET_IN CP_TD I D(14) D(14)_FO CLCD_EN CLCD_EN_F O...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams VCCD VCC D VBA T R305 R306 CN302-1 DLC_DETECT DLC_DETEC R310 SDS_TXD SDS_TXD R309 SDS_RXD SDS_RXD R308 DEBUG_TX D DEBUG_TX R307 DEBUG_RXD DEBUG_RXD VCCD DEBUG_DT R DEBUG_DTR DEBUG_CT S DEBUG_CT S DEBUG_RTS...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams VCCD U402 1 B1 AOUTAN AUDIO_OUT_SEL 25 24 23 22 21 20 SPK1 N VBA T D(1) C460 C461 100N F 100PF D(0) SPVDD R460 R403 150 K CP_WEN /W R EQ 3...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams VCC D VCCD VCCD R508 C599 R599 C513 100N F C518 C519 U501 100N F 100N F A(1:22 ) S-A17 F-VCC F-VPP D(0:15) E5 F-A19 A(20) S-VCC A(19) G 4 F-A17 A(18)
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams JTAG VCCD VCC_1.8A C603 C604 C60 5 C606 C607 C608 C601 C602 10N F 10N F 10NF 10NF 10N F 10NF 220NF 220NF VCC_1.8A VCCD VRTC SDS_TX D C61 2 C61 1...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams Q701 R700 27 0 U700 GREEN_LE DSP_AB(0:8 ) P5 AB 0 DSP_AB(0) OCTL9 SERC K SERCLK DSP_AB(1) AB 1 SERDA SERDAT TXPOWE N3 AB 2 DSP_AB(2) SERLE 1 SERL E DSP_AB(3) AB 3...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams 3456 VOSC VOSC L80 1 R803 C803 C800 1N F 10PF R80 1 1.5K CLK13M_TR U800 OSC801 C802 C805 C806 R802 10N F 1N F 56 0 CLK13M_MC AF C C807 10N F...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams SERDAT SERCLK C903 22N F SERL E SI_EN C924 100PF C905 C906 22N F C922 22NF SD O 15 47PF GSM_PAM_IN 2 RXQP PDNB RXQP SI_EN 29 28 U900 R999 DPCS_PAM_I N...
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SGH-S300 Flow Chart of Troubleshooting and Circuit Diagrams ANT 1 CN1001 C1012 33PF GND GND L101 5 C100 2 8.2nH 0.75P F C100 7 0.75PF GSM_LNA_IN_N L1001 C101 1 27n H 0.75PF GSM_LNA_IN_P F1002 C1014 0.75PF 11 VC 1 EGSMRX...
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ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. December. 2002 Printed in Korea. Code No.: GH68-03465A BASIC.
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