NV5LT/NV3.5LT TROUBLESHOOTING MANUAL
RESPONDING TO ALARMS
PAGE 4.1.66
VERSION 3.3 2016-03-10
Power Supply Interface PWB Replacement
Using
as a guide, replace the power supply interface PWB (A1) as follows:
Figure 4.1.27: Power Supply Interface PWB Location
1.
Turn off and lock out the transmitter’s main ac power.
2.
Remove the transmitter’s lower, rear panel and front panel.
3.
From the front of the transmitter, pull the power supply modules that are mated with the power
supply interface PWB forward so that they disengage from the PWB.
4.
From the rear of the transmitter, disconnect the mating connectors and wiring from the power
supply interface PWB. Record the placement of all wiring and jumpers to ensure the replacement
PWB connections are identical.
5.
Remove 24 sets of M3 nuts and washers that secure the power supply interface PWB to the
transmitter and pull out the power supply interface PWB.
M3 securing hardware
(24 nuts/washers)
Power Supply
Interface PWB (A1)
PARTIAL REAR VIEW
(panels removed)
Summary of Contents for NV3.5LT
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Page 8: ...NV5LT NV3 5LT TROUBLESHOOTING MANUAL PAGE 4 VIII VERSION 3 3 2016 03 10 ...
Page 294: ...VERSION 3 3 2016 03 10 SD 32 Figure SD 32 NAFP109B Output Power Probe and Sample PWBs ...
Page 307: ...VERSION 3 3 2016 03 10 MD 8 Figure MD 8 NAPA31C Power Amplifier PWB Q1 ...
Page 322: ...NV5LT NV3 5LT TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 4 6 2 VERSION 3 3 2016 03 10 ...
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