Ericsson LPE-200 manual Digital I/O Lines to RF Section

Page 45

SCHEMATIC DIAGRAM	AE/LZB 119 1902 R1A

Digital I/O Lines to RF Section

(1911-ROA 117 2297, Sheet 8, Rev. B)

45

Image 45

Contents Maintenance Manual AE/LZB 119 1902 R1A DEC Original issueTable of Contents General Error Codes SpecificTransmit ReceiveDescription Mechanical Options and AccessoriesControls OperationKeypad SCAN/SYSTEM Functions SCNOPT Software Circuit AnalysisReceiver RX Front EndRx Back End Audio Power Amplifier N600 Phase Digitizer D701Digital I/O Lines DSP ModuleTransmitter Transmit Frequency GenerationTX/Converter/Modulator N150 Power Sensor Circuit N102-A Power Amplifier N101SAW Transmit Band Pass Filter Directional Coupler W100Synthesizer DC Power Distribution + Switch Tx Switch+5V-D Switching Regulator N902 Analog Regulator N900LCD Negative Bias Generator ServiceEquipment Required ProgrammingProgramming Mode Basic TroubleshootingFlash Programming General Troubleshooting Symptom Possible Cause/Action RequiredTransmit Path Test Points and Levels Error Code Overview Error Codes IntroductionError Code Format Fatal ErrorsSpecial Error Codes Non-Fatal ErrorsError Codes Specific Hardware Fatal System ErrorsOperational Software Fatal System Errors Operational Software Non-Fatal System Errors Radio Programming Errors Radio Errors That Are Returned From The Bootloader SoftwareMessage Code Description AE/LZB 119 1902 R1A To disassemble the LPE-200 radio Disassembly ProcedurePush Battery Contacts PA Module Replacement Filters Z400 And Z401 ReplacementReassembly Radio, 900 MHz Assembly Diagram and Parts ListFront Assembly Scan SXK 107 Front Assembly ScanFront Assembly System Rear Assembly SXK 107 Radio Rear AssemblyROA 117 MHz Main Circuit Board AssemblyMHz Circuit Board Front SideBack Side Block Diagram Transmitter Transmit Offset Synthesizer Receiver Front End Receiver Back End RF Regulators Digital I/O Lines to RF Section Analog I/O Lines to RF Section TX/RX Audio ROA 117 2297, Sheet 11, Rev. B Flex Connector DSP Connectors System Memory Regulators/Power Switch LCD Bias, LED Driver, UDC SWA+ OUT Debbie D601 Hillary D701 Ericsson Inc