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2.3 Transceiver............................................................................................................................ 27
2.3.1 Digital Section.......................................................................................................... 28
2.3.2 Transmitter Path...................................................................................................... 28
2.3.3 Receiver Path.......................................................................................................... 29
2.3.4 Frequency Generating Section................................................................................ 29
Chapter 3: Programming the Radio.......................................................................31
Chapter 4: Test Setup and Testing........................................................................32
4.1 Typical Test Setup................................................................................................................. 32
4.2 Test Check List...................................................................................................................... 33
4.2.1 Transmitter Tests..................................................................................................... 35
4.2.2 Call Processing Tests.............................................................................................. 35
4.2.3 Duplex Test..............................................................................................................35
4.3 Configuring IFR 3901/IFR 3902/IFR 3920 Setup...................................................................35
4.4 Configuring IFR 2968 Setup.................................................................................................. 36
4.5 Configuring IFR 3901/IFR 3902/IFR 3920 Manual Screen Test............................................38
4.6 Configuring IFR 2968 Manual Screen Test........................................................................... 38
4.7 RF Tests................................................................................................................................ 39
4.7.1 Testing Receiver using IFR 3901/IFR 3902/IFR 3920............................................. 39
4.7.2 Testing Receiver using IFR 2968.............................................................................39
4.7.3 Testing Transmitter using IFR 3901/IFR 3902/IFR 3920......................................... 40
4.7.4 Testing Transmitter using IFR 2968.........................................................................40
4.8 Call Processing Tests............................................................................................................ 40
4.8.1 Talk Back using IFR 3901/IFR 3902/IFR 3920........................................................ 41
4.8.2 Talk Back using IFR 2968........................................................................................41
4.8.3 Call to Mobile........................................................................................................... 41
4.9 Digital Duplex Test (Tx) using IFR 3901/IFR 3902/IFR 3920................................................ 42
4.10 Digital Duplex Test (Tx) using IFR 2968..............................................................................42
4.11 Manual Mode Testing.......................................................................................................... 43
4.11.1 Testing in DALT Mode........................................................................................... 44
4.11.2 Testing Charger Recognition................................................................................. 52
4.12 Service Flowchart................................................................................................................ 53
Chapter 5: Maintenance..........................................................................................54
5.1 Preventive Maintenance........................................................................................................ 54
5.2 Safe Handling of CMOS and LDMOS Devices......................................................................55
5.3 MTP8500Ex and MTP8550Ex Replacement Parts List......................................................... 56
5.4 Accessories Replacement Parts List..................................................................................... 56
5.5 Radio Disassembly and Reassembly.................................................................................... 57
5.5.1 Torque Specification Chart...................................................................................... 57
MN002465A01-AN
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