GSM TELEPHONE SGH-E710 SERVICE GSM TELEPHONE Manual CONTENTS 1. Specification 2. Flow Chart of Troubleshooting 3. Exploded Views and Parts List 4. Electrical Parts List 5. Block Diagrams 6.
1. SGH-E710 Specification 1. GSM General Specification GSM900 Phase 1 EGSM900 Phase 2 DCS1800 Phase 1 Freq. Band[MHz] Uplink/Downlink 890~915 880~915 1710~1785 935~960 925~960 1805~1880 ARFCN Range 1~124 Tx/Rx Spacing Mod. Bit Rate/ Bit Period Time Slot Period /Frame Period Modulation MS Power Power Class Sensitivity TDMA Mux Cell Ridius 45MHz 45MHz 95MHz 270.833KHz 270.833KHz 270.833KHz 3.692us 3.692us 3.692us 576.9us 576.9us 576.9us 4.615ms 4.615ms 4.615ms 0.3GMSK 0.3GMSK 0.
SGH-E710 Specification 2.
2. SGH-E710 Flow Chart of Troubleshooting 1. Power ON 'Power ON' Does not work Check the current consumption Current consumption NO Down load again ≥100mA ? YES Check the V bat. voltage Voltage ≥ 3.3V ? NO Charge the Battery YES Check the pin of U100 pin #11 ≥ 2.8V ? NO Check U100 and C110 YES pin #39 and #33 = 2.8V YES NO Pin #9=1.8V? NO Check U100 and C109 YES Check the clock signal NO at pin #3 of OSC400 Check the clock generation circuit (OSC400, U402 pin#4) Freq.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 2. System Initial Initial Failure The pin #9 of U100 = 1.8V NO and pin #11 of U100=2.8V? Check the U100 (If it has some problem, it has to be replaced.) YES Is the pin #19 of U100 NO " Low --> High" ? Check the U100 (If it has some problem, it has to be replaced.) YES There is 32.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 3.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 4. Charging Part Abnormal charging operation The pin #17,18 of CN101 NO (VEXT) is 5V ? Replace TA or check CN101 YES The pin#2 of U102 is Low? NO Check the U102 YES The pin#3 of U102 is Low? NO Check the U102 YES The pin#5 of U101 is NO 3.2~4.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams CN100 1 1 4 4 2 2 5 5 6 3 3 G G GG 6 7 89 10 C101 33PF C103 470NF VBA T VCC_1.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 5. Microphone Part Micro-phone does not work Is the assembled status of NO Microphone O.K? Reassemble the microphone YES Check the DC bias voltage on Mic path. The voltage of C237 is NO 2.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 6. Speaker Part There is no sound from speaker Is the terminal of speaker NO is O.
AUXOUT AUXIN MICOUT MICIN C243 39PF C233 39PF R227 47K,1% R218 47K,1% C261 39PF C260 39PF VCCA R235 51K C230 1UF 1UF C239 R230 82K,1% VCCA R225 10K C237 33UF R219 1.2K R217 10K 2 Q200 C238 470nF 3 1 R231 1K VCCD R223 4.7K R221 4.7K C234 8PF C232 1NF JACK_IN AOUTBP AOUTBN EAR_SWITCH C235 33PF L200 100nH MAIN_MIC NC NC R241 R229 820PF R238 0 R237 0 R239 0 R224 100nH R222 100nH R240 C240 33UF 6.3V C236 33UF 6.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 7. Camera Part Camera function does not work NO Connect the CN200 Check the connect CN200? YES NO Check the U203 Pin #9 of U203 = 2.8V? YES Pin #10 of U203 = 2.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 8.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 9. EGSM Transmitter F400 Pin#6 About 2~3 dBm? NO U300,301 Check & Change YES YES C402,CN400 Check & Change NO F400 Pin#10 = High? NO Level of F400 Pin#7 is 4~5dBm ? Continuous TX ON condition TX Power Code : 500 code Applied CH : 62 RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF. Level : 10dBm ATT. : 20dB YES F400 Check & Change NO C403 = 3.7V? Check the Battery Block YES NO Level of U400 Pin #6 is 1.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 10.
SGH-E710 Flow Chart of Troubleshooting and Circuit Diagrams 11. DCS Transmitter F400 Pin#6 About 2~3 dBm? NO NO F400 Pin#4 = High? YES U300,302 Check & Change YES C402,CN400 Check & Change NO Level of F400 Pin#5 is 4~5dBm ? Continuous TX ON condition TX Power Code : 350 code Applied CH : 660 RBW : 100KHz VBW : 100KHz SPAN : 10MHz REF. Level : 10dBm ATT. : 20dB YES F400,L401,C408,C410 Check & Change NO C403 = 3.7V? Check the Battery Block YES Level of U400 Pin #6 is 1.
TXPOWE R TX_BAND_SE L TX_EN C409 270PF C411 33PF 100K R406 C404 10NF VPAC C412 1NF 2 3T 4 5 6 GND 13 VRAMP VBATT VREG XEN BAND VCC 10 81 2 VCC2 VCC2 RF3140 PCSOUT DCSI N U400 1 7 11 9 R402 0.75P F C408 270 R405 820 L401 2.7nH R403 15 C410 0.5PF 220 R404 820 L404 NC L403 0 GSM_PAM_IN PCS_RX_EN DCS_TX_E N GSM_TX_E N F400 9 EGSMTX DCS/PCSTX G 8 EGSMRX L410 47PF DCSRX L408 1.5nH L409 22PF G PCSRX G C431 NC C430 NC 1 1 C429 0.
3. SGH-E710 Exploded View and its Parts list 1.
SGH- E710 Exploded view and its Part list 2. Cellular phone Parts list Location Description NO. SEC.
SGH-E710 Exploded view and its Part list 3. Test Jig (GH80-00865A) 3-1. RF Test Cable 3-2. Test Cable (GH39-00182A) 3-3. Serial Cable (GH39-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE (GH39-00159A) 3-6.
4.
SGH-E710 Electrical Parts List SEC Code Design LOC SEC Code Design LOC SEC Code Design LOC 2203-005061 C329 2203-005061 C428 2804-001577 OSC200 2203-000254 C330 2203-002668 C429 2801-004025 OSC300 2203-005061 C331 3709-001187 CN100 2809-001260 OSC400 2203-005496 C332 3710-001866 CN1006 0504-001113 Q100 2203-005480 C333 3710-001611 CN101 0502-001201 Q101 2203-000940 C334 3711-005397 CN200 0504-001113 Q102 2203-000254 C335 3722-002067 CN201 0501-000225 Q200 220
SGH-E710 Electrical Parts List SEC Code Design LOC SEC Code Design LOC SEC Code Design LOC 2007-000171 R129 2703-002313 R222 2007-000171 R328 2007-001294 R130 2007-000143 R223 2007-000172 R400 2007-001301 R131 2703-002313 R224 2007-001316 R401 2007-001294 R132 2007-000148 R225 2007-001316 R402 2007-001294 R133 2007-000171 R226 2007-002965 R403 2007-001294 R134 2007-007139 R227 2007-000139 R404 2007-001301 R135 2203-002525 R228 2007-001311 R405 2007-001301 R1
SGH-E710 Electrical Parts List SEC Code Design LOC 1405-001082 ZD103 1405-001082 ZD104 1405-001018 ZD105 1405-001082 ZD106 1405-001082 ZD107 1405-001082 ZD108 1405-001082 ZD109 1405-001082 ZD110 1405-001082 ZD111 1405-001082 ZD112 1405-001082 ZD113 1405-001082 ZD114 1405-001082 ZD115 1405-001082 ZD116 1405-001082 ZD117 1405-001082 ZD121 1405-001082 ZD122 1405-001082 ZD123 1405-001082 ZD124 1405-001082 ZD125 1405-001082 ZD126 1405-001082 ZD127 1405-001082 ZD128
5. SGH-E710 Block Diagrams 1. RF Solution Block Diagram V_BAT JIG-ON Backlight LED TA_VEXT Drivers Charger PSC2106 CHG Block Multi-Function Backlight Power Supply Antenna 2V8_RF V_SIM SIM Driver Power Mgmt V_PAC SIM_RST SIM CON I/FC ON LTC1734 SIM_RST SIM_CLK DEBUG SDS SIM_Data VREF CHG_ON SIM_CLK SIM_Data I_CHG Crystal 32.768 KHz VRTC Contractor 1V8_Core 2V8_DIG RF_Power_EN SAW PCS LNA IN Power S I 4 2 0 5 V_BAT PAM DSP Memory I/F D[0..
C400 ANT1 L400 C401 C415 R320 C327 C336 U305 U302 SW1 R408 ZD118 C420 C111 C106 C114 C105 R114 R110 Q100 C100 C112 C115 C107 C113 6-1 This Document can not be used without Samsung's authorization SAMSUNG Proprietary-Contents may change without notice MAIN_MIC R240 U300 R108 U101 C304 R313 Q101 C116 R113 R112 R111 R109 R145 ZD103 R107 R103 R106 ZD104 R105 R104 ZD106 CN1006 R119 CN101 R146 R101 R315 R102 C332 ZD105 U307 R241 R144 C303 R307 R306 R318 C235 R100
SGH-E710 PCB Diagrams 2.
ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. DEC. 2003 Printed in Korea. This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No.: GH68-04713A BASIC.
