TEL T-48, Operating And Maintenance Manual

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Revision A T-48 90 008 026
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List of Illustrations (Figures)
Figure Title Page
1-1 T-48/T-48A MOD III Transponder Ramp Test Set….…………………........................... 1-1
2-1 T-48
Accessories…………………………………………………………………………. 2-2
2-2 Controls, Indicators, and Connector Functions………………………............................... 2-4
2-3 Fuse Cartridge……………………………………………………………………………. 2-6
2-4 Omni Antenna Limitations……………………………………………………………….. 2-7
2-5 TAP-141………………………………………………………………………………….. 2-8
2-6 Transponder Sequence of Tests…………………………………………………………... 2-10
3-1
T-48 MOD III Configuration Chart…………………………………...………………….. 3-4
3-2 T-48 Simplified Block Diagram………………………………………....……………….. 3-5
4-1 Closed Box Initial Set-Up………………………………………………………………... 4-9
4-2 Interrogation Waveforms…………………………………………………......................... 4-12
4-3 Linear Output Response………………………………………………………………… 4-14
4-4 Receiver Sensitivity Set-Up………………………………………………........................ 4-15
4-5 Test Point Locations……………………………………………………………………… 4-18
5-1
TAP-135 Anti-Radiation Hat, Schematic………………………………………………… 5-2
5-2 TAP-141 Direct Connect, Schematic...…………………………………………………... 5-3
5-3 T-48 Front Panel Interconnect Diagram, Schematic.…………………………………….. 5-4
5-4 RF PCB Assembly (5 Pages Total), Schematic…………………………………………... 5-5
5-5 Digital PCB Assembly (4 Pages Total), Schematic……………………………………… 5-10
5-6 Digital Range PCB Assembly, Schematic……………………………………………….. 5-14
6-1
T-48 Case Assembly, IPB………………………………………………………………... 6-2
6-2 Front Panel Assembly (3 Pages Total), IPB……………………………………………… 6-3
6-3 RF Box Assembly, IPB…………………………………………………………………... 6-9
6-4 Cable Assembly, Digital Range to Digital, IPB…………………………………………..6-10
6-5 Cable Assembly, Digital Range to RF, IPB……………………………………………… 6-11
6-6 Cable Assembly, LCD to Digital, IPB…………………………………………………… 6-12
6-7 Cable Assembly, RF/ANT FP, IPB………………………………………………………. 6-13
6-8 TAP-135 Anti-Radiation Hat, IPB……………………………………………………….. 6-14
6-9 TAP-141, Direct Connect, IPB…………………………………………………………… 6-16
6-10 Digital Range PCB Assembly, IPB………………………………………………………. 6-18
6-11 Inverter PCB Assembly, IPB……………………………………………………............... 6-20
6-12 Coupler PCB Assembly, IPB…………………………………………………………….. 6-21
6-13 Direct Connect PCB Assembly, IPB……………………………………………………... 6-22
6-14 TAP-135 Anti-Radiation Hat PCB Assembly, IPB....…………………………………… 6-23
6-15 RF Board, PCB Assembly (2 Pages Total), IPB…………………………………………. 6-24
6-16 Digital Board, PCB Assembly (2 Pages Total), IPB…………………………………….. 6-31