2.3.1 Radio Interface and Baseband Front End
2.3.2 Voice and Modem Codec
2.3.3 Voice interface and Voice Front End
2.4 Multi-media Features
2.4.1 LCD/NAND Flash Interface
2.4.2 LCD Controller
2.4.3 Image serial Processor
2.4.4 Graphic Compression
2.4.5 JPEG Decoder
2.4.6 JPEG Encoder
2.4.7 Image Data Processing
2.4.8 MPEG-4/H.263. CODEC
2.4.9 TV-OUT
2.4.10 2D Accelerator
2.4.11 Audio Codec
2.4.12 Audio Interface and Audio Front End
2.5 General Description
3. Power Management System
3.1. Feature
3.2. Application
3.3. General Description
3.4. Detailed Description Overview
3.4.1 Low Dropout Regulator ( LDOs) and Reference
3.4.2 Digital Core LDO (Vcore)
3.4.3 Digital IO LDO (Vio)
3.4.4 Analog LDO ( Va )
3.4.5 TCXO LDO (Vtcxo)
3.4.6 RTC LDO (Vrtc)
3.4.7 Memory LDO (Vm)
3.4.8 SIM LDO (Vsim)
3.4.9 Reference Voltage Output (Vref)
3.4.10 SIM Card Interface
3.4.11 Vibrator, Alerter, LED Switches
3.5 Power Sequence and Protection Logic
3.5.1 Under voltage Lockout (UVLO)
3.5.2 Deep Discharge Lockout (DDLO)
3.5.3 Reset
3.5.4 Over temperature Protection
3.5.5 Battery Charger
4. POWER AMPLIFIER FOR GSM850 / DCS1800 / PCS1900
4.1 Block Diagram and Description
Содержание SP-770
Страница 1: ...SP 770 AS Manual GSM GPRS Cellular Phone SKYSPRING VITELCOM...
Страница 6: ...SECTION1 SP 770 PRODUCT OVERVIEW...
Страница 27: ...Figure4 Battery Charger Flow chart...
Страница 36: ...SECTION2 SCHEMATIC LAYOUT 1 MAIN PART SCHEMATIC LAYOUT 1 1 BASEBAND PART...
Страница 37: ...1 2 MMI PART...
Страница 38: ...1 3 RF PART...
Страница 39: ...2 MAIN KEY PART SCHEMATIC LAYOUT...
Страница 40: ...3 LCD...
Страница 41: ...SECTION3 PCB LAYOUT 1 MAIN PCB 1 1 Location Map of Main PCB Top...
Страница 42: ...1 2 Location Map of Main PCB Bottom...
Страница 43: ...2 MAIN KEY PCB 2 1 Location Map of Main KEY PCB Top...
Страница 44: ...2 2 Location Map of Main KEY PCB Bottom...
Страница 45: ...3 LCD PCB...
Страница 46: ...SECTION4 MECHANICAL ASSEMBLY...
Страница 48: ...3 LOGIC PART TROUBLESHOOTING...
Страница 50: ...3 2 Troubleshooting 2 LCD Display Backlight error...
Страница 51: ...3 3 Troubleshooting 3 Key push error...
Страница 52: ...3 4 Troubleshooting 4 Vibrator error...
Страница 53: ...3 5 Troubleshooting 5 MP3 Play error...
Страница 54: ...3 6 Troubleshooting 6 Camera Preview error...
Страница 55: ...3 7 Troubleshooting 7 FM Radio Play error...
Страница 57: ...3 9 Troubleshooting 9 Bluetooth error...
Страница 58: ...4 RF PART TROUBLESHOOTING...
Страница 59: ...4 1 Troubleshooting 10 RX path check...
Страница 60: ...4 2 Troubleshooting 11 TX path check...
Страница 64: ...4 Settings 4 1 Flash Tool setting 1 Firstly Check values of the setting in an Options menu...
Страница 66: ...5 SW Downloading 1 Connect LT cable to the PC 2 Press the Download button...
Страница 67: ...3 Connect LT cable to the target mobile phone with power off 4 Completion of downloading...
Страница 74: ...5 4 Save back up NVRAM data as a file Save back up NVRAM data from target as a file...
Страница 77: ...6 4 Download to flash Click download to flash button and then updating parameters is complete...