Table of Contents xi
3.3.4.1.2 Sequencing.............................................................. 3-19
3.3.4.2 Troubleshooting Details.......................................................... 3-20
3.3.4.2.1 Troubleshooting the Fan Switch .............................. 3-20
3.3.4.2.2 Troubleshooting the Driver Amplifier ....................... 3-21
3.3.4.2.3 Troubleshooting the Final Amplifier ......................... 3-22
3.3.4.2.4 Troubleshooting the Output Board........................... 3-23
3.3.4.2.5 Troubleshooting the Isolator Load ........................... 3-23
3.3.4.2.6 Troubleshooting the Circulator................................. 3-23
3.3.4.2.7 Troubleshooting the Power Control Loop ................ 3-24
3.4 Power Amplifier (PA) Schematics (UHF) ........................................................ 3-25
3.5 Power Amplifier (PA) PCB (UHF) ....................................................................3-40
3.6 Power Amplifier Parts List (UHF) – CLE1333 .................................................3-48
3.7 Power Amplifier Parts List (UHF) – CLE1334 .................................................3-49
3.8 Power Amplifier Parts List (UHF) – CLE6215 .................................................3-50
3.9 Power Amplifier Parts List (UHF) – CLE6216 .................................................3-55
3.10 Power Amplifier Parts List (UHF) – CLE6217 .................................................3-60
3.11 Power Amplifier Parts List (UHF) – CLE6218 .................................................3-61
3.12 Power Amplifier Parts List (UHF) – CLE6219 .................................................3-62
3.13 Power Amplifier Parts List (UHF) – CLN8504 .................................................3-66
Chapter 4 MTR3000 Station Control Module..................................... 4-1
4.1 Overview ...........................................................................................................4-1
4.2 Theory of Operation ..........................................................................................4-1
4.2.1 Tx/Rx OMAP ........................................................................................ 4-2
4.2.1.1 External Memory ...................................................................... 4-2
4.2.2 Serial Peripheral Interface (SPI) ..........................................................4-3
4.2.3 Station Reference ................................................................................4-7
4.2.3.2 MTR3000 Controller Clocks ..................................................... 4-8
4.2.4 MAKO ................................................................................................... 4-9
4.2.5 Field Programmable Gate Array (FPGA) ........................................... 4-11
4.2.6 Audio .................................................................................................. 4-13
4.2.7 Ethernet Interface ...............................................................................4-14
4.2.7.3 LAN9500i Power-up Configuration......................................... 4-15
4.2.8 Backplane .......................................................................................... 4-16
4.2.9 Exciter ................................................................................................ 4-16
4.2.10 Receiver .............................................................................................4-17
4.2.11 Front Panel (FP) Connectors and Switch ...........................................4-18
4.2.12 Front Panel LEDs ............................................................................... 4-22
4.2.13 Supply Voltage Circuitry .....................................................................4-22
4.3 Troubleshooting .............................................................................................. 4-23
4.3.14 Disassembly and Reassembly Procedures ........................................4-23
4.3.15 Troubleshooting Chart ........................................................................ 4-24
4.3.16 Calibration Procedure ........................................................................4-33
4.4 Controller Schematics (UHF) .......................................................................... 4-34
4.5 Controller PCB (UHF) .....................................................................................4-51
4.6 Controller Parts List (UHF) ..............................................................................4-53