SM-C7108维修手册(三星 C7108).pdf-资料库

08 SM M-C71 Mobile Device CONT TENTS utions 1. Saf 2. Spe 3. Pro 4. Exp 5. MA 6. Lev 7. Lev 8. Lev 9. Ref ety Precau ecification duct Func ploded Vie IN Electric vel 1 Repa vel 2 Repa vel 3 Repa ference da ction ew and Pa cal Parts L air air air ata rts list List Notice: A All functional r product info and othe nt, including b documen pricing, comp design, p ty, and capa availabilit o change wit subject to the right to a reserves described he product d obligation n to provide n . changes. lity, features, ormation pro but not limite ponents, perf abiliti-es of th thout notice. alter this doc erein at anytim notification o ns, , specificatio s ovided in this ts, ed to, benefit formance, e product are e Samsung c-ument or th me, without of such he

1. Safety Precautions 1-1. Repair Precaution Before attempting any repair or detailed tuning, shield the device from RF noise or static electricity discharges. Use only demagnetized tools that are specifically designed for small electronic repairs, as most electronic parts are sensitive to electromagnetic forces. Use only high quality screwdrivers when servicing products. Low quality screwdrivers can easily damage the heads of screws. Use only conductor wire of the properly gauge and insulation for low resistance, because of the low margin of error of most testing equipment. We recommend 22-gauge twisted copper wire. Hand-soldering is not recommended, because printed circuit boards (PCBs) can be easily damaged, even with relatively low heat. Never use a soldering iron with a power rating of more than 100 watts and use only lead-free solder with a melting point below 250°C (482°F). Prior to disassembling the battery charger for repair, ensure that the AC power is disconnected. Always use the replacement parts that are registered in the SEC system. Third-party replacement parts may not function properly. Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

1. Safety Precautions 1-2. ESD(Electrostatically Sensitive Devices) Precaution Many semiconductors and ESDs in electronic devices are particularly sensitive to static discharge and can be easily damaged by it. We recommend protecting these components with conductive anti-static bags when you store or transport them. Always use an anti-static strap or wristband and remove electrostatic buildup or dissipate static electricity from your body before repairing ESDs. Ensure that soldering irons have AC adapter with ground wires and that the ground wires are properly connected. Use only desoldering tools with plastic tips to prevent static discharge. Properly shield the work environment from accidental electrostatic discharge before opening packages containing ESDs. The potential for static electricity discharge may be increased in low humidity environments, such as air-conditioned rooms. Increase the airflow to the working area to decrease the chance of accidental static electricity discharges. Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification 2-1. CDMA & GPS General Specification ITEM Tx Freq. range Rx Freq. range Channel Bandwidth Channel Spacing Number of Channel Duplex Separation In/Output Impedance Tx Local Frequency Rx Local Frequency TCXO Frequency Freq. Stability CDMA 824.025~848.985MHz GPS - 869.025~893.985MHz 1575.42MHz 1.23MHz 30KHz 832 45MHz 50Ohm FTx * 1.6666 FRx * 2 26MHz (FRX-45MHz)±300Hz 2MHz Not Used 1 - 50Ohm - FRx * 2 26MHz - Operating Temperature -30℃ ~ +60℃ -30℃ ~ +60℃ Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification Item Freq. Band[MHz] Uplink/Downlink ARFCN range GSM 850 824~849 869~894 128~251 Tx/Rx spacing 45MHz EGSM 900 880~915 925~960 0~124 & 975~1023 45MHz DCS1800 1710~1785 1805~1880 512~885 PCS1900 1850~1910 1930~1990 512~810 95MHz 80MHz Mod. Bit rate/ Bit Period Time Slot Period/ Frame Period Modulation GSM/ GPRS MS Power 270.833kbps 270.833kbps 270.833kbps 270.833kbps 3.692us 576.9us 4.615ms 0.3GMSK 33dBm ~5dBm 3.692us 576.9us 4.615ms 0.3GMSK 33dBm ~5dBm 3.692us 576.9us 4.615ms 0.3GMSK 30dBm ~0dBm 3.692us 576.9us 4.615ms 0.3GMSK 30dBm ~0dBm Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl Sensitivity -102dBm -102dBm -100dBm -100dBm TDMA Mux Cell Radius 8 35Km 8 35Km 8 2Km 8 2Km Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification 2-2. GSM Tx Power Class TX Power control level TX Power control level GSM850 33±2 dBm 31±2 dBm 29±2 dBm 27±2 dBm 25±2 dBm 23±2 dBm 21±2 dBm 19±2 dBm 17±2 dBm 15±2 dBm 13±2 dBm 11±3 dBm 9±3 dBm 7±3 dBm 5±3 dBm - 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 - 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 - EGSM900 33±2 dBm 31±2 dBm 29±2 dBm 27±2 dBm 25±2 dBm 23±2 dBm 21±2 dBm 19±2 dBm 17±2 dBm 15±2 dBm 13±2 dBm 11±3 dBm 9±3 dBm 7±3 dBm 5±3 dBm - TX Power control level 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 DCS1800 30±3 dBm 28±3 dBm 26±3 dBm 24±3 dBm 22±3 dBm 20±3 dBm 18±3 dBm 16±3 dBm 14±3 dBm 12±4 dBm 10±4 dBm 8±4 dBm 6±4 dBm 4±4 dBm 2±5 dBm 0±5 dBm TX Power control level 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PCS1900 30±3 dBm 28±3 dBm 26±3 dBm 24±3 dBm 22±3 dBm 20±3 dBm 18±3 dBm 16±3 dBm 14±3 dBm 12±4 dBm 10±4 dBm 8±4 dBm 6±4 dBm 4±4 dBm 2±5 dBm 0±5 dBm Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification 2-3. WCDMA General Specification WCDMA2100 WCDMA1900 WCDMA850 WCDMA900 Freq. Band[MHz] Uplink/Downlink ARFCN range 1922~1977 2112~2167 1852~1907 1932~1987 UL：9612~9888 UL：9262~9538 DL：10562~10838 DL：9662~9938 824~849 869~894 UL：4132~4233 DL：4357~4458 880~915 925~960 UL：2712~2863 DL：2937~3088 Tx/Rx spacing 190MHz 80MHz 45MHz 45MHz Mod. Bit rate/ Bit Period 3.84 Mcps 3.84 Mcps 3.84 Mcps 3.84 Mcps Time Slot Period/Frame Period FrameLength:10ms Slotlength:0.667ms FrameLength:10ms Slotlength:0.667ms FrameLength:10ms Slotlength:0.667ms FrameLength:10ms Slotlength:0.667ms Modulation QPSK/HQPSK QPSK/HQPSK QPSK/HQPSK QPSK/HQPSK MS Power 24dBm~-50dBm 21dBm~-50dBm 24dBm~-50dBm 24dBm~-50dBm Power Class 3(max+24dBm) 4(max+21dBm) 3(max+24dBm) 3(max+24dBm) Sensitivity -106.7dBm -106.7dBm -106.7dBm -106.7dBm TDMA Mux Cell Radius 8 2Km 8 2Km 8 2Km 8 2Km Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification 2-4. TD-SCDMA General Specification Freq. Band[MHz] Uplink/Downlink ARFCN range Tx/Rx spacing TCXO Frequency Modulation MS Power Band34 2010~2025 10054~10121 / 26MHz Band39 1880~1920 9404~9596 / 26MHz QPSK/16-QAM QPSK/16-QAM -49dBm~ 25dBm -49dBm~ 25dBm Power Class 2 (max: 24 +1/-3dBm) 2 (max: 24 +1/-3dBm) Sensitivity Cell Radius In/Output Impedance -108dBm/1.28MHz -108dBm/1.28MHz >10Km 50Ω >10Km 50Ω Operating Temperature -30℃ ~ +60℃ -30℃ ~ +60℃ Confidential and proprietary-the contents in this service guide subject to change without prior notice Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

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SM-C7108维修手册(三星 C7108).pdf

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