CONTENTS
SECTION1. SP-770 PRODUCT OVERVIEW
1. RF Transceiver Part
1.1 Introduction
1.1.1 Features
1.1.2 Applications
1.1.3 General Description
1.1.4 MT6120 Function Block Diagram
1.2 Functional Description
1.2.1 Receiver
1.2.2 Transmitter
1.2.3 TX VCO
1.2.4 Frequency Synthesizer
1.2.4.1 Synthesizer System Description
1.2.4.2 Synthesizer Frequency Programming for RX Mode
1.2.4.3 Synthesizer Frequency Programming for TX Mode
1.2.4.4 Digital Calibration Loop
1.2.4.5 Fast-Acquisition System
1.2.4.5 Voltage Control Crystal Oscillator
1.2.4.6 Regulator
2. BASEBAND Part
2.1 Introduction
2.1.1 Platform
2.1.2 Memory
2.1.3 Multi-media
2.1.4 Connectivity and Storage
2.1.5 Audio
2.1.6 Radio
2.1.7 Debug function
2.1.8 Power Management
2.1.9 Package
2.2 Platform Features
2.2.1 General
2.2.2 MCU subsystem
2.2.3 External Memory Interface
2.2.4 User Interface
2.2.5 Security
2.2.6 Connectivity
2.2.7 Power management
2.2.8 Test and Debug
2.3 Modem Feature
Summary of Contents for SP-770
Page 1: ...SP 770 AS Manual GSM GPRS Cellular Phone SKYSPRING VITELCOM...
Page 6: ...SECTION1 SP 770 PRODUCT OVERVIEW...
Page 27: ...Figure4 Battery Charger Flow chart...
Page 36: ...SECTION2 SCHEMATIC LAYOUT 1 MAIN PART SCHEMATIC LAYOUT 1 1 BASEBAND PART...
Page 37: ...1 2 MMI PART...
Page 38: ...1 3 RF PART...
Page 39: ...2 MAIN KEY PART SCHEMATIC LAYOUT...
Page 40: ...3 LCD...
Page 41: ...SECTION3 PCB LAYOUT 1 MAIN PCB 1 1 Location Map of Main PCB Top...
Page 42: ...1 2 Location Map of Main PCB Bottom...
Page 43: ...2 MAIN KEY PCB 2 1 Location Map of Main KEY PCB Top...
Page 44: ...2 2 Location Map of Main KEY PCB Bottom...
Page 45: ...3 LCD PCB...
Page 46: ...SECTION4 MECHANICAL ASSEMBLY...
Page 48: ...3 LOGIC PART TROUBLESHOOTING...
Page 50: ...3 2 Troubleshooting 2 LCD Display Backlight error...
Page 51: ...3 3 Troubleshooting 3 Key push error...
Page 52: ...3 4 Troubleshooting 4 Vibrator error...
Page 53: ...3 5 Troubleshooting 5 MP3 Play error...
Page 54: ...3 6 Troubleshooting 6 Camera Preview error...
Page 55: ...3 7 Troubleshooting 7 FM Radio Play error...
Page 57: ...3 9 Troubleshooting 9 Bluetooth error...
Page 58: ...4 RF PART TROUBLESHOOTING...
Page 59: ...4 1 Troubleshooting 10 RX path check...
Page 60: ...4 2 Troubleshooting 11 TX path check...
Page 64: ...4 Settings 4 1 Flash Tool setting 1 Firstly Check values of the setting in an Options menu...
Page 66: ...5 SW Downloading 1 Connect LT cable to the PC 2 Press the Download button...
Page 67: ...3 Connect LT cable to the target mobile phone with power off 4 Completion of downloading...
Page 74: ...5 4 Save back up NVRAM data as a file Save back up NVRAM data from target as a file...
Page 77: ...6 4 Download to flash Click download to flash button and then updating parameters is complete...