User ManualTable of ContentsPSM20-374FB Technical Manua111 MXI501U AMPLIFIER INTRODUCTION72 SAFETY NOTICES82.1 Beryllium Oxide Warning82.2 Other Toxic Materials82.3 Dangerous Voltages82.3.1 Switch to Safety93 LARCAN PARTS, ASSEMBLIES, ASSEMBLY DRAWINGS AND SCHEMATIC NUMBERS113.1 Vendor Standard Part Numbers113.2 LARCAN Numbers for Parts, Assemblies and Documentation113.3 Leaded Resistors123.4 Surface Mount Resistors 1/4W and Less123.5 Surface Mount Capacitors133.6 Parts Lists133.6.1 Production Changes13PUB07-025FB_Operations_Maintenance15THE MXi501U TRANSMITTER152 MXi501U AMPLIFIER HEATSINK ASSEMBLY183 MXi AMPLIFIER CONTROLLER194 AMPLIFIER INSTALLATION AND STARTUP214.1 Before Applying AC to the Unit214.2 Applying AC to the Unit214.3 Before Turning the Amplifier ON224.4 Amplifier ON Sequence224.4.1 Turning ON the MXi Transmitter234.4.2 TYPICAL DATA read on the LCD235 TEST AND TROUBLESHOOTING245.1 Bench Test Procedures245.1.1 Front-End Module, 21B1473, Bench Test Procedure245.1.2 IPA1, 21B1324, Bench Test Procedure245.1.3 Driver Pallet, 21B1639, Bench Test Procedure255.1.4 PA Pallet 11A2142G1 Bench Test Procedure255.2 Basic Troubleshooting Techniques265.2.1 No RF Output265.2.2 Output Reduced to 56%266 MAINTENANCE276.1 Daily276.2 Monthly276.3 Semi-Annually and Annually276.4 Transmitter Cooling System277 SERVICE287.1 Removing the Fan Array287.2 Replacing the Entire Fan Array297.3 Replacing a Single Fan299 SPECIFICATIONS309.1 Electrical309.2 Environmental309.3 Cooling309.4 Dimensions309.5 Shipping Weight30PUB07-026FB_Amplifier_Chassis311 MXi501U AMPLIFIER32PUB07-027FB_Power_Amplifier_Heatsink_Assembly341 POWER AMPLIFIER HEATSINK ASSEMBLY 40D2104G1352 FRONT END MODULE ASSEMBLY 21B1473G1363 IPA MODULE 21B1951G1374 DRIVER MODULE 21B1639G1395 PA PALLET ASSEMBLY 11A2142G1406 FOUR-WAY SPLITTER 21B2425G1417 FOUR-WAY COMBINER 21B2426G142PUB07-015FB_Power_Supply461 MXi501/1002U POWER SUPPLY PFC2K-3212A-P695147PUB07-028FB_Power_Supply_Chassis491 MXi501U POWER SUPPLY CHASSIS502 CURRENT SENSOR BOARD 11A2226G152PUB06-82_Rev2_MXi_Controller_Board_Rev1531 INTRODUCTION562 GENERAL OPERATIONS582.1 Connector and Signal Definitions582.1.1 J1 BDM (Background Debug Mode) Connection582.1.2 J2 Remote RS232 Connection582.1.3 J3 Front Panel LCD and Touchpad582.1.4 J4 +32 Volt DC Power Supply582.1.5 J5 +32 Volt DC Power Supply Sensing (External)582.1.6 J6 Remote Controls582.1.7 J7 Transmitter Switch Interface592.1.8 J8 Fan Interface592.1.9 J9 External Controls592.1.10 J10 AGC Control592.1.11 J11 Aural Detector (Optional)592.1.12 J12 Forward RF Sample592.1.13 J13 Reflected RF Sample592.1.14 J14 Front Panel LCD Power592.2 Jumper Options592.2.1 BDM Slide Switch S2592.2.1.1. Dip Switch S3 System Configuration592.2.1.2. Jumper E1–Debug/Normal Mode602.2.1.3. Jumper E2–Remote Control Reset602.2.1.4. Jumper E3–Spare Line Configuration602.2.1.5. Jumper E4–External or Internal Power Supply Current Sensing602.2.1.6. Jumper E5–Front Panel ON/OFF Control Switch (System/Manual)602.2.1.7. Jumper E6–Tx Switching Interlock Enable602.2.1.8. Jumper E7–Manual Remote ON/OFF Control602.2.1.9. Jumper E8–Forward RF Detector, Peak or Average Power602.2.1.10. Jumper E9–Forward RF Detector Color Burst Trap612.2.1.11. Jumper E10–Forward RF Detector Sound Carrier Trap612.2.1.12. Jumper E11–Forward RF Detector Final Gain Control612.2.1.13. Jumper E12–Reflected RF Detector, Peak or Average Power612.2.1.14. Jumper E13–Reflected RF Detector Color Burst Trap612.2.1.15. Jumper E14–Reflected RF Detector Sound Carrier Trap612.2.1.16. Jumper E15–Reflected RF Detector Final Gain Control612.2.1.17. Jumper E16–AGC Disable Control612.2.1.18. Jumper E17–VSWR Disable Control612.2.1.19. Jumper E18–Manual VSWR Reset Control612.2.1.20. Jumper E19– Peak or Sync Detection622.3 Front Panel and Control Indicators622.3.1 Default/Normal E5= Ext E7=Out622.3.2 Manual Override E5= Int E7=Out622.3.3 Remote Override E5= Ext E7=In622.3.4 Manual and Remote Override E5= Int E7=In622.4 RF Detector Operation632.5 AGC, VSWR and Cutback Operation642.6 Interlocks652.6.1 Hard Interlocks652.6.1.1. Amplifier Thermal652.6.1.2. Transmitter Switching652.6.1.3. External #1652.6.1.4. VSWR Relay K2652.6.2 Soft Interlocks662.6.2.1. Power Supply OK662.6.2.2. Power Supply Voltage662.6.2.3. Power Supply Current662.6.2.4. Amp Temperature662.6.2.5. Fan Failure662.7 External Signals and Remote Control662.7.1 External #1 Interlock662.7.2 Remote Controls (Individual)672.7.3 Remote Interface (Serial)672.7.4 Transmitter Switching Interface672.7.5 External DC Power Supply673 LCD GUI INTERFACE AND TOUCHPAD683.1 Main Screen and Touchpad Operations683.1.1 REM693.1.2 AGC693.1.3 ERR693.1.4 LOG693.1.5 AMP703.1.6 P/S703.1.7 INTK703.1.8 GEN703.2 Amplifier Screen703.2.1 TRIP723.2.2 L/O723.2.3 RF723.2.4 INTK723.2.5 PSOK723.2.6 FAN1723.2.7 FAN2733.2.8 FAN3733.3 Power Supply Screen733.3.1 OK STAT743.3.2 PS ON743.3.3 INTK743.3.4 FAN743.4 Interlocks Screen743.4.1 TRIP753.4.2 L/O763.4.3 TEMP763.4.4 PSOK763.4.5 VOR763.4.6 CUTB763.4.7 FANS763.5 Remote Controls and RS232 Serial Screen773.5.1 Remote783.5.2 NewFmt783.5.3 ExtCmd783.5.4 SerCmd783.5.5 Error793.5.6 Logs Screen793.6 General Screen804 SETUP PROCEDURES824.1 RF Detector824.1.1 Test Equipment Required824.1.2 Jumper Installation824.1.3 Verify OpAmp Offsets834.1.4 Verify Output Power Level834.2 AGC and Cutback Protection844.2.1 AGC Setup844.2.2 Cutback Setup844.3 VSWR Protection844.4 Remote Control Interface Baud854.5 Power Supply Voltage and Current Calibration865 REMOTE CONTROL CONNECTIONS MXi TRANSMITTER875.1 Remote Controls875.1.1 RC_TX_On Remote Transmitter ON Control885.1.2 RC_TX_Off Remote Transmitter OFF Control885.1.3 RC_TX_VOR Remote Transmitter VOR Control895.1.4 RC_RESET Remote RESET Control895.2 EXT1 Secondary External #1 Interlock895.2.1 Status Outputs905.3 Telemetry Outputs906 CIRCUIT DESCRIPTIONS926.1 MC68HC908 Microprocessor926.2 Power Supply Voltage and Current Monitoring936.3 ON/OFF Relay K1956.4 AGC, Cutback AND VSWR956.5 SPI UART966.6 SPI NVPOT976.7 RF Detector976.7.1 Circuit Description976.8 J12 Channel – Visual Forward976.9 J13 Channel – Reflected986.10 J12 Channel – Aural Forward99Size: 2.2 MBPages: 99Language: EnglishOpen manual