User Manual (user Manual) (ver.1.0) (English)
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..., troubleshooting, user forums and knowledgebase articles are available at att.com/DeviceSupport. • For information about your wireless account, service plan or network, visit att.com/Wireless. Find More Information On the Web • Interactive web tutorials, tips & tricks and FAQs are available at att.com/WirelessTutorials. Select Manufacturer: Samsung and Model: SGH-i907...
..., troubleshooting, user forums and knowledgebase articles are available at att.com/DeviceSupport. • For information about your wireless account, service plan or network, visit att.com/Wireless. Find More Information On the Web • Interactive web tutorials, tips & tricks and FAQs are available at att.com/WirelessTutorials. Select Manufacturer: Samsung and Model: SGH-i907...
Service Manual
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Array course control 5. Block Diagrams 9. Product Function 4. MAIN Electrical Parts List 7. Chart of Troubleshooting 11. Disassembly and Assembly Instructions 8. Reference data Exploded View and Parts list 6. Specification 3. PCB Diagrams 10. Safety Precautions 2. GSM TELEPHONE SGH-i900 GSM TELEPHONE CONTENTS 1.
Array course control 5. Block Diagrams 9. Product Function 4. MAIN Electrical Parts List 7. Chart of Troubleshooting 11. Disassembly and Assembly Instructions 8. Reference data Exploded View and Parts list 6. Specification 3. PCB Diagrams 10. Safety Precautions 2. GSM TELEPHONE SGH-i900 GSM TELEPHONE CONTENTS 1.
Service Manual
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Power On z PDA Part 'Power On' No At TA300 V>3.32 Yes 1,4 Pins in U304 V1 = V4 Yes Voltage in U605 V1=3.0 V2=1.8 V3=1.4 V4=1.4 V5=1.8 V5=1.8 No Battery Change No Check U304 & Neighboring Circuit No Check U605 & Neighboring Circuit Yes Check other Power Devices 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of TroubleShooting 10-1. 10.
Power On z PDA Part 'Power On' No At TA300 V>3.32 Yes 1,4 Pins in U304 V1 = V4 Yes Voltage in U605 V1=3.0 V2=1.8 V3=1.4 V4=1.4 V5=1.8 V5=1.8 No Battery Change No Check U304 & Neighboring Circuit No Check U605 & Neighboring Circuit Yes Check other Power Devices 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of TroubleShooting 10-1. 10.
Service Manual
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Flow Chart of Troubleshooting VCC_3.0V R619 R620 PWR_SCL PWR_SDA VCC_3.3V_BATT VBATT VCC_1.8V VCODEC_2.0V VCC_TV_3.0V VCC_1.8V_SYS VBATT C664 C663 VBATT VBATT C665 C666 L602 ... 7 B1 6 Y2 5 C327 VEXT_5V IF_CON_SENSE ON_SW U310 1 OUT GND 4 2 VDD NC 3 D302 1 3 2 4 5 R316 V_DC VBATT U304 6NC VOUT 1 5 GND GND 2 4 VIN EN 3 TA300 D301 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting VCC_3.0V R619 R620 PWR_SCL PWR_SDA VCC_3.3V_BATT VBATT VCC_1.8V VCODEC_2.0V VCC_TV_3.0V VCC_1.8V_SYS VBATT C664 C663 VBATT VBATT C665 C666 L602 ... 7 B1 6 Y2 5 C327 VEXT_5V IF_CON_SENSE ON_SW U310 1 OUT GND 4 2 VDD NC 3 D302 1 3 2 4 5 R316 V_DC VBATT U304 6NC VOUT 1 5 GND GND 2 4 VIN EN 3 TA300 D301 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting C326 U303C325 R428 U409 C670 R626 C672 R623 R624 TA300 D301 L605 C676C669 C671U305 C453 U304 C301 C302 R316 C324 C300 C331 30 U311 C674 881CCC666020352L603 U605 L604 R314 C673 U307 U310 R313 R310 L602 C327 R318 D302 R311 R309 R315 C311 7 R620 C626R619 C675 C665 C664 C663 C666 C615 U302 C305 C618 C622C619 C304C303 10-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting C326 U303C325 R428 U409 C670 R626 C672 R623 R624 TA300 D301 L605 C676C669 C671U305 C453 U304 C301 C302 R316 C324 C300 C331 30 U311 C674 881CCC666020352L603 U605 L604 R314 C673 U307 U310 R313 R310 L602 C327 R318 D302 R311 R309 R315 C311 7 R620 C626R619 C675 C665 C664 C663 C666 C615 U302 C305 C618 C622C619 C304C303 10-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
Service Manual
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Flow Chart of Troubleshooting z PHONE Part Phone on No 4 Pin in U201 Low Yes Check U201 & Neighboring Circuit No 2 Pin in D300 Low No 3 Pin in D300 Low Yes Check UME201& Neighboring circuit Yes Check D300 ` No Output PWR U301 O.K? Yes Check OSC102 & UCP 600 Neighboring Circuit No Check U301& Neighboring Circuit 10-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting z PHONE Part Phone on No 4 Pin in U201 Low Yes Check U201 & Neighboring Circuit No 2 Pin in D300 Low No 3 Pin in D300 Low Yes Check UME201& Neighboring circuit Yes Check D300 ` No Output PWR U301 O.K? Yes Check OSC102 & UCP 600 Neighboring Circuit No Check U301& Neighboring Circuit 10-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
Service Manual
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PON_RST_PDA_N_O PON_RST_PMIC_N Flow Chart of Troubleshooting U201 1A 2B 3 GND VCC 6 NC 5 Y4 VCC_2.8V R200 FONE_RST VCC_1.8V UME201 VCC_2.8V C233 C234 E8 H7 B8 F10 F5 J5 MSM_A2(1:... 6 2A NC 5 3 GND Y 4 C240 DPRAM_nINT_PDA R219 VSS VSS VSS VSS VSS VSS VSS VSS A5 VSS F6 J6 E10 E5 E6 E1 A 10 C10 10-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
PON_RST_PDA_N_O PON_RST_PMIC_N Flow Chart of Troubleshooting U201 1A 2B 3 GND VCC 6 NC 5 Y4 VCC_2.8V R200 FONE_RST VCC_1.8V UME201 VCC_2.8V C233 C234 E8 H7 B8 F10 F5 J5 MSM_A2(1:... 6 2A NC 5 3 GND Y 4 C240 DPRAM_nINT_PDA R219 VSS VSS VSS VSS VSS VSS VSS VSS A5 VSS F6 J6 E10 E5 E6 E1 A 10 C10 10-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting V_DC VRFRX2_2.7V E1 VBAT B3 VDD_GP B2 VDD_MAIN H11 VDD_MSM L5 VDD_MSMC B9 VDD_RF K 10 VDD_RUIM L7 VDD_S23 VDD_SPK R A4 A11 V DD_ WL A N VREG_5V ... PS_HOLD_F TRK_LO_ADJ VTCXO_2.85V Place near the TCXO R135 C1109 12 VC GND VCC OUT 43 OSC102 C1104 C1105 RTR6285_TCXO TCXO C1106 C1107 C1108 10-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting V_DC VRFRX2_2.7V E1 VBAT B3 VDD_GP B2 VDD_MAIN H11 VDD_MSM L5 VDD_MSMC B9 VDD_RF K 10 VDD_RUIM L7 VDD_S23 VDD_SPK R A4 A11 V DD_ WL A N VREG_5V ... PS_HOLD_F TRK_LO_ADJ VTCXO_2.85V Place near the TCXO R135 C1109 12 VC GND VCC OUT 43 OSC102 C1104 C1105 RTR6285_TCXO TCXO C1106 C1107 C1108 10-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting HDC201 C224 C229 C205 SC100 326 ZD201 C325 C227 C228 R208 C231 UCP200 C215 UME200 C312 C320 L300 C301 C302 U304 BTC300 TP_PSHOLD D301 TA300 ... 3 R304 C244 U205 R214 U207 R221 C246 C243 C209 U607 R202 U202U203 R222 C221 TR600 C682 HDC400 SLC50 1 U610 C678 SC113 R200 U201 SC101 C 10-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting HDC201 C224 C229 C205 SC100 326 ZD201 C325 C227 C228 R208 C231 UCP200 C215 UME200 C312 C320 L300 C301 C302 U304 BTC300 TP_PSHOLD D301 TA300 ... 3 R304 C244 U205 R214 U207 R221 C246 C243 C209 U607 R202 U202U203 R222 C221 TR600 C682 HDC400 SLC50 1 U610 C678 SC113 R200 U201 SC101 C 10-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Yes 10, 18 Pin in U402 Signal ON ? Yes 12, 14 Pin in U402 Signal ON ? RECEIVER Working Operator receive No SPK-Assy's Breakdown? Yes END Yes Change SPK-Assy's No Check UDC402, C416, C417 No Check PIN 6, 10 in UCP200 Signal ON? No AE15, AE16 Pin in U407 No Check R430, R433 No Check L404, L405 10-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of Troubleshooting 10-2. Yes 2, 4 Pin in U407 Signal ON ?
Yes 10, 18 Pin in U402 Signal ON ? Yes 12, 14 Pin in U402 Signal ON ? RECEIVER Working Operator receive No SPK-Assy's Breakdown? Yes END Yes Change SPK-Assy's No Check UDC402, C416, C417 No Check PIN 6, 10 in UCP200 Signal ON? No AE15, AE16 Pin in U407 No Check R430, R433 No Check L404, L405 10-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of Troubleshooting 10-2. Yes 2, 4 Pin in U407 Signal ON ?
Service Manual
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Flow Chart of Troubleshooting SPK_SW RCV_P RCV_N SPK_SW VAUDIO_3.3V_A R435 U407 1 CB1 2 NO1 3 GND 4 NO2 5 CB2 COM1 10 NC 9 VCC 8 NC 7 COM2 6 SPKR CODEC_OUT_R CODEC_OUT_L SPKL C455 C456 ... VCODEC_2.0V ZD406 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ_VCC_GND 10-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting SPK_SW RCV_P RCV_N SPK_SW VAUDIO_3.3V_A R435 U407 1 CB1 2 NO1 3 GND 4 NO2 5 CB2 COM1 10 NC 9 VCC 8 NC 7 COM2 6 SPKR CODEC_OUT_R CODEC_OUT_L SPKL C455 C456 ... VCODEC_2.0V ZD406 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ_VCC_GND 10-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting R6 C321 C318 R312 R219 OSC300 C233 L302 L301 C312 C320 C61 4 C61 1 C31 9 C60 1 C241C238 R209R217 C216 U600 C313 C31 5 C310 ZD40 1 C60 0 C607 ... C682 U607 C205 C207 C206 R218 C217C223 C237 C202 C220C222 U207 R221 C246 C243 C209 C679 C210 C21 3 R304 C244 R200 U201 SC101 C 10-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting R6 C321 C318 R312 R219 OSC300 C233 L302 L301 C312 C320 C61 4 C61 1 C31 9 C60 1 C241C238 R209R217 C216 U600 C313 C31 5 C310 ZD40 1 C60 0 C607 ... C682 U607 C205 C207 C206 R218 C217C223 C237 C202 C220C222 U207 R221 C246 C243 C209 C679 C210 C21 3 R304 C244 R200 U201 SC101 C 10-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting 10-3. Yes 12, 14 Pin in U407, C477, C478 No Check L404, L405 10-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Yes END Yes Change SPK-Assy's No Check PIN 5, 8 in UCD 402 No Check PIN 6, 10 in U402 Signal ON ? SPEAKER Working Operator Speaker No SPK-Assy's Breakdown? Yes 7, 9 Pin in UCP Signal ON? No Y18, V21 Pin in U407 Signal ON ??
Flow Chart of Troubleshooting 10-3. Yes 12, 14 Pin in U407, C477, C478 No Check L404, L405 10-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Yes END Yes Change SPK-Assy's No Check PIN 5, 8 in UCD 402 No Check PIN 6, 10 in U402 Signal ON ? SPEAKER Working Operator Speaker No SPK-Assy's Breakdown? Yes 7, 9 Pin in UCP Signal ON? No Y18, V21 Pin in U407 Signal ON ??
Service Manual
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Flow Chart of Troubleshooting VBATT SPK_SW C459 23 22 21 20 19 18 17 16 NC NC GND SEL VREF VSS VDD R CV M CODEC_OUT_R C447 CODEC_OUT_L C448 AMP_EN_O R431 ... 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ _ V CC_ GND 10-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting VBATT SPK_SW C459 23 22 21 20 19 18 17 16 NC NC GND SEL VREF VSS VDD R CV M CODEC_OUT_R C447 CODEC_OUT_L C448 AMP_EN_O R431 ... 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ _ V CC_ GND 10-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting I FC400 HDC400 ZD402C234 C245 C242C235 U205 UME201 C24 0 R427 ZD40 0 R600 C641 R601 C402 TA40 1 TA402 C415 C409 C461 C414 C413 C462 R42 6 TA40 0 C401 ... ZD405 RFS10 0 L10 1 R10 0 R435 C455 R138 R127 C504C503 TA10 0 C197 C53 2 C63 7 R631 R13 9 R13 7 C469 L11 9 C541 R122 C110 L100 C111 10-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting I FC400 HDC400 ZD402C234 C245 C242C235 U205 UME201 C24 0 R427 ZD40 0 R600 C641 R601 C402 TA40 1 TA402 C415 C409 C461 C414 C413 C462 R42 6 TA40 0 C401 ... ZD405 RFS10 0 L10 1 R10 0 R435 C455 R138 R127 C504C503 TA10 0 C197 C53 2 C63 7 R631 R13 9 R13 7 C469 L11 9 C541 R122 C110 L100 C111 10-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Yes No Change Earphone Yes Change MIC Assy's Check the DC bias voltage on MIC path Yes The voltage of Troubleshooting 10-4. YES AE17, AE18 in IFC400 Signal ON? YES END Check the path around MIC Bais circuit Check the C405, C406, UCD402 10-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of No R418 is about 1.6V ? MIC Working Operate Microwave 3.5Pin in No HDC400 Signal ON? 3,4Pin in No UCP200 Signal ON ?
Yes No Change Earphone Yes Change MIC Assy's Check the DC bias voltage on MIC path Yes The voltage of Troubleshooting 10-4. YES AE17, AE18 in IFC400 Signal ON? YES END Check the path around MIC Bais circuit Check the C405, C406, UCD402 10-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization Flow Chart of No R418 is about 1.6V ? MIC Working Operate Microwave 3.5Pin in No HDC400 Signal ON? 3,4Pin in No UCP200 Signal ON ?
Service Manual
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Flow Chart of Troubleshooting JTAG_RXD JTAG_IF_CON_SENSE JTAG_VBUS NC 27 NC 26 NC 25 NC 24 NC 23 NC 22 NC 21 20 20 19 19 18 18 17 17 ... 10 10 12 12 14 14 16 16 MOUSE_RXD MOUSE_CLK KBC(2) MOUSE_MOTION MAIN_MIC_P MAIN_MIC_N EAR_CHECK 4 CH3 6 CH5 5 CH4 ZD405 3 CH2 1 CH1 2 VN OJ_VCC_GND 10-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting JTAG_RXD JTAG_IF_CON_SENSE JTAG_VBUS NC 27 NC 26 NC 25 NC 24 NC 23 NC 22 NC 21 20 20 19 19 18 18 17 17 ... 10 10 12 12 14 14 16 16 MOUSE_RXD MOUSE_CLK KBC(2) MOUSE_MOTION MAIN_MIC_P MAIN_MIC_N EAR_CHECK 4 CH3 6 CH5 5 CH4 ZD405 3 CH2 1 CH1 2 VN OJ_VCC_GND 10-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting VBATT SPK_SW C459 23 22 21 20 19 18 17 16 NC NC GND SEL VREF VSS VDD R CV M CODEC_OUT_R C447 CODEC_OUT_L C448 AMP_EN_O R431 ... 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ _ V CC_ GND 10-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting VBATT SPK_SW C459 23 22 21 20 19 18 17 16 NC NC GND SEL VREF VSS VDD R CV M CODEC_OUT_R C447 CODEC_OUT_L C448 AMP_EN_O R431 ... 1 IO1 2 GND 3 IO2 IO5 6 IO4 5 IO3 4 C465 C466 C467 C468 VAUDIO_3.3V_A TSMY TSMX TSPY TSPX C422 C424 C425 1 6 2 5 3 4 ZD402 OJ _ V CC_ GND 10-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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Flow Chart of Troubleshooting I FC400 C219 TA60 0 R405 C420 C421 C418 C419 C609 R407R40 R408R40 C60 5 C61 0 C62 0 C651 R610 C423 C426 R211 R213 R602 C218 C632 C23 9 U204UME201 C ... R202 C20 8 C678 SC11 3 UCP200 U607 R218 C217C223 C237 C202 C220C222 U207 R221 C246C243 C209 C679 C210 C21 3 R304 C244 R200 U201 SC101 C 10-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Flow Chart of Troubleshooting I FC400 C219 TA60 0 R405 C420 C421 C418 C419 C609 R407R40 R408R40 C60 5 C61 0 C62 0 C651 R610 C423 C426 R211 R213 R602 C218 C632 C23 9 U204UME201 C ... R202 C20 8 C678 SC11 3 UCP200 U607 R218 C217C223 C237 C202 C220C222 U207 R221 C246C243 C209 C679 C210 C21 3 R304 C244 R200 U201 SC101 C 10-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without...
Service Manual
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No OJ key NG? No Power Key NG? Yes No Change Key FPCB Change LED 10-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization No Camera Key NG ? Flow Chart of Troubleshooting 10-5. YES END Yes Yes Key FPCB Breakdown? KEY Working Press Key Volume Key NG ? Change Key FPCB Yes Yes Camera Key FPCB Change Key FPCB Breakdown? Change OJ Key Yes Key FPCB Breakdown? Yes Yes OJ Key Breakdown?
No OJ key NG? No Power Key NG? Yes No Change Key FPCB Change LED 10-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization No Camera Key NG ? Flow Chart of Troubleshooting 10-5. YES END Yes Yes Key FPCB Breakdown? KEY Working Press Key Volume Key NG ? Change Key FPCB Yes Yes Camera Key FPCB Change Key FPCB Breakdown? Change OJ Key Yes Key FPCB Breakdown? Yes Yes OJ Key Breakdown?