Nautel NV5, Troubleshooting Manual

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NV5/NV3.5 Troubleshooting Manual Responding to alarms
Issue 3.2 2014-12-10 Page 1-43
Fan, IPA and Module Power Supply Replacement
Figure 1.7: Location of Various Power Supply Modules
1. Open the front door and locate the suspect power supply module. See Figure 1.7 .
2. From the front of the transmitter, remove the power supply module from the transmitter. If
necessary, use a slotted screwdriver to turn the
LATCH
knob at the front of the power supply
module counterclockwise to unlatch the module from its support bracket.
WARNING:
Lethal voltages exist inside the transmitter when power is on. Follow
replacement instructions carefully to ensure safety for maintenance
personnel during power supply replacement.
WARNING:
Rotating parts are present at the back of the power supply module.
Take care when removing the module.
Front Door Removed for Clarity
Fan Power
Supply Module A
Fan Power
Supply Module B
IPA Power
Supply A
IPA Power
Supply B
1A
1B
2A
2B
Module Power Associated RF
Supply Power Module
1A (U12), 1B (U13) 1 (A18)
2A (U14), 2B (U15) 2 (A21)
Module Power
Supplies