Ericsson LPE-200 manual PA Module Replacement, Filters Z400 And Z401 Replacement, Reassembly

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AE/LZB 119 1902 R1A

Figure 17

14.Pry up on the hook to release from the latch and push down on the switches to remove the assembly from the housing.

Figure 17 - Removing Switch Assembly (Pry up on the latch)

Figure 18

15.To remove the Antenna Switch Assembly the switch assembly must be removed first.

16.Unscrew the RF nut. Remove the switch being careful not to lose the washer.

Figure 18 - Removing the Antenna Switch

PA Module Replacement

Remove the PA Module by unsoldering the five (5) leads attached to the Main Board (see the Outline Diagram). Solder new module in same location.

Filters Z400 And Z401 Replacement

Filter Z400 has four (4) leads that go all the way through the board and are soldered on the reverse side of the board. Unsolder the four leads to remove Z400.

Filter Z401 also has four leads. But Z401 is surface mounted on the same side of the board. Unsolder the leads to remove Z401.

REASSEMBLY

Reassemble the radio by reversing the instructions (steps 1-16) provided in the Dissassembly Section.

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Contents Maintenance Manual DEC Original issue AE/LZB 119 1902 R1ATable of Contents Error Codes Specific GeneralReceive TransmitDescription Options and Accessories MechanicalOperation ControlsKeypad SCAN/SYSTEM Functions SCNOPT Receiver Circuit AnalysisSoftware RX Front EndRx Back End Digital I/O Lines Phase Digitizer D701Audio Power Amplifier N600 DSP ModuleTransmitter Transmit Frequency GenerationTX/Converter/Modulator N150 SAW Transmit Band Pass Filter Power Amplifier N101Power Sensor Circuit N102-A Directional Coupler W100Synthesizer DC Power Distribution +5V-D Switching Regulator N902 Tx Switch+ Switch Analog Regulator N900Equipment Required ServiceLCD Negative Bias Generator ProgrammingProgramming Mode Basic TroubleshootingFlash Programming Symptom Possible Cause/Action Required General TroubleshootingTransmit Path Test Points and Levels Error Code Format Error Codes IntroductionError Code Overview Fatal ErrorsError Codes Specific Non-Fatal ErrorsSpecial Error Codes 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 Disassembly Procedure To disassemble the LPE-200 radioPush Battery Contacts PA Module Replacement Filters Z400 And Z401 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