User's Manual
Table Of Contents
- 1 MXi201V AMPLIFIER–INTRODUCTION
- 2 SAFETY NOTICES
- 2.1 Beryllium Oxide Warning
- 2.2 Other Toxic Materials
- 2.3 Dangerous Voltages
- 3 LARCAN PARTS, ASSEMBLIES, ASSEMBLY DRAWINGS AND SCHEMATIC NUMBERS
- 1 MXi CONTROLLER
- 2 AMPLIFIER INSTALLATION AND STARTUP
- 3 TEST AND TROUBLESHOOTING
- 4 MAINTENANCE
- 5 SERVICE
- 6 TEST EQUIPMENT SETUP
- 7 SPECIFICATIONS
- 1 MXi DUAL PALLET VHF AMPLIFIER
- 1 FUNCTIONAL DESCRIPTION:
- 2 RF PREAMPLIFIER
- 3 POWER AMPLIFIER:
- 4 TWO-WAY SPLITTER/COMBINER
- 5 ADJUSTMENT OF BIAS VOLTAGE TO ESTABLISH PROPER QUIESCENT FET BIAS CURRENT:
- 6 LOW POWER SWEEP AMPLIFIERS
- 1 MXi POWER SUPPLY LAR1000-50-P5337
- 2 POWER SUPPLY DATA SHEET REPRINT
MXiV DUAL PALLET OPERATIONS AND MAINTENANCE
TSM21Q-365 Rev 0 July 17, 2009 MXiV Dual Pallet Operations and Maintenance 20
5.2 R
5.3 R
In the event of a fan failure, LARCAN recommends replacing the entire array, as all fans have a similar lifespan.
1. Remove the fan array as described in Section
5.1.
2. Each of the four fans is attached to the mounting plate via two screw-and-nut assemblies. Remove the
screws and nuts and set aside.
3. Insert and tighten the five mounting screws. Note: Screws only need to be snug; do not overtighten.
2. Slide the new fan array into the MXi. The power connection is aligned so that it connects when the
mounting plate is fully in place.
1. Remove the fan array as described in Section 5.1.
9. Replace fan array into MXi as described in Section
5.1.
8. If necessary, replace the zip tie holding the wires to the fan frame.
7. Re-fasten the two screw-and-nut assemblies holding the fan to the mounting plate.
6. Re-connect the three-pin wiring harness connection.
5. Remove the defective fan and replace with a known good fan of exactly the same dimensions and
specifications.
4. If necessary, carefully cut and remove the zip tie holding the wires to the fan frame.
3. Disconnect the three-pin wiring harness connection by gently sliding it back with a fingernail or small
plastic tool.
EPLACING A SINGLE FAN
EPLACING THE ENTIRE FAN ARRAY
Figure 13 Fan Attachment to Mounting Plate
Figure 12 Fan Array
Three-pin
wiring harness
connector
Screw-and-
nut
assemblies