Receiver Front End | Ericsson LPE-200 specification

AE/LZB 119 1902 R1A	SCHEMATIC DIAGRAM

Receiver Front End

(1911-ROA 117 2297, Sheet 5, Rev. B)

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Ericsson LPE-200 manual Receiver Front End

Contents

Maintenance Manual DEC Original issue AE/LZB 119 1902 R1A Table of Contents Error Codes Specific General Receive Transmit Description Options and Accessories Mechanical Operation Controls Keypad SCAN/SYSTEM Functions SCNOPT Receiver Circuit AnalysisSoftware RX Front End Rx Back End Digital I/O Lines Phase Digitizer D701Audio Power Amplifier N600 DSP Module Transmitter Transmit Frequency GenerationTX/Converter/Modulator N150 SAW Transmit Band Pass Filter Power Amplifier N101Power Sensor Circuit N102-A Directional Coupler W100 Synthesizer DC Power Distribution +5V-D Switching Regulator N902 Tx Switch+ Switch Analog Regulator N900 Equipment Required ServiceLCD Negative Bias Generator Programming Programming Mode Basic TroubleshootingFlash Programming Symptom Possible Cause/Action Required General Troubleshooting Transmit Path Test Points and Levels Error Code Format Error Codes IntroductionError Code Overview Fatal Errors Error Codes Specific Non-Fatal ErrorsSpecial Error Codes Hardware Fatal System Errors Operational 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 Disassembly Procedure To disassemble the LPE-200 radio Push Battery Contacts PA Module Replacement Filters Z400 And Z401 ReplacementReassembly Assembly Diagram and Parts List Radio, 900 MHz Front Assembly Scan Front Assembly Scan SXK 107 Front Assembly System Radio Rear Assembly Rear Assembly SXK 107 MHz Main Circuit Board Assembly ROA 117 Front Side MHz Circuit Board Back 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