Ericsson LPE-200 manual Regulators/Power Switch

Page 52

AE/LZB 119 1902 R1A	SCHEMATIC DIAGRAM

Regulators/Power Switch

(1911-ROA 117 2297, Sheet 15, Rev. B)

52

Image 52

Contents Maintenance Manual DEC Original issue AE/LZB 119 1902 R1ATable of Contents Error Codes Specific GeneralReceive TransmitDescription Options and Accessories MechanicalOperation ControlsSCN Keypad SCAN/SYSTEM FunctionsOPT Circuit Analysis SoftwareReceiver RX Front EndRx Back End Phase Digitizer D701 Audio Power Amplifier N600Digital I/O Lines DSP ModuleTransmit Frequency Generation TransmitterTX/Converter/Modulator N150 Power Amplifier N101 Power Sensor Circuit N102-ASAW Transmit Band Pass Filter Directional Coupler W100Synthesizer DC Power Distribution Tx Switch + Switch+5V-D Switching Regulator N902 Analog Regulator N900Service LCD Negative Bias GeneratorEquipment Required ProgrammingBasic Troubleshooting Programming ModeFlash Programming Symptom Possible Cause/Action Required General TroubleshootingTransmit Path Test Points and Levels Error Codes Introduction Error Code OverviewError Code Format Fatal ErrorsNon-Fatal Errors Special Error CodesError Codes Specific Hardware Fatal System ErrorsOperational Software Fatal System Errors Operational Software Non-Fatal System Errors Radio Errors That Are Returned From The Bootloader Software Radio Programming ErrorsMessage Code Description AE/LZB 119 1902 R1A Disassembly Procedure To disassemble the LPE-200 radioPush Battery Contacts Filters Z400 And Z401 Replacement PA Module ReplacementReassembly Assembly Diagram and Parts List Radio, 900 MHzFront Assembly Scan Front Assembly Scan SXK 107Front Assembly System Radio Rear Assembly Rear Assembly SXK 107MHz Main Circuit Board Assembly ROA 117Front Side MHz Circuit BoardBack 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