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VX150 TO VX2 TROUBLESHOOTING MANUAL
RESPONDING TO ALARMS
PAGE 3.1.60
VERSION 2.0 2023-04-20
Power Amplifier PWB Replacement
NOTE
:
The USB provided with the transmitter contains videos (mp4 format) that support the
replacement procedures in this section. Go to the USB’s
HOME
screen and click
VIDEOS
. Videos for
replacing LRUs are listed in the
Maintenance
section.
See MD-1or MD-2 and MD-9 in the Mechanical Drawings section of this manual.
NOTE
:
For VX1.5 /VX2 transmitters, refer to Mechanical Drawing MD-2 to determine the location of PA1
and PA2.
1.
Turn RF off and disconnect ac power from the transmitter.
2.
If applicable, remove and retain the four screws securing the transmitter in the rack.
3.
Place the transmitter on a suitable workbench.
4.
Remove and retain the 21 M3 screws securing the top cover. Remove cover.
5.
Disconnect the two cables connected to the PA (PA Volts from E1 and RF Drive from J1). Discard
the M3 screw attached to E1. See
.
Figure 3.1.35: PA Cable Removal
CAUTION!
The Power Amplifier PWB is static sensitive and must be handled in a
static protected manner.
Remove Cables
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Страница 168: ...VERSION 2 0 2023 04 20 MD 6 Figure MD 6 NAPI189 Analog Audio PWB...
Страница 169: ...VERSION 2 0 2023 04 20 MD 7 Figure MD 7 NAPI187A System Interface PWB...
Страница 170: ...VERSION 2 0 2023 04 20 MD 8 Figure MD 8 NAPI188 01 Power Supply Interface PWB VX150 VX300 VX600...
Страница 171: ...VERSION 2 0 2023 04 20 MD 9 Figure MD 9 NAPI188 Power Supply Interface PWB VX1 VX1 5 VX2...
Страница 172: ...VERSION 2 0 2023 04 20 MD 10 Figure MD 10 NAPI193 Front Panel User Interface PWB...
Страница 173: ...VERSION 2 0 2023 04 20 MD 11 Figure MD 11 NAPA41 Pre Amp IPA PWB...
Страница 174: ...VERSION 2 0 2023 04 20 MD 12 Figure MD 12 NAPA40A Power Amplifier PWB...
Страница 175: ...VERSION 2 0 2023 04 20 MD 13 Figure MD 13 NAPF16A Low Pass Filter PWB...
Страница 176: ...VERSION 2 0 2023 04 20 MD 14 Figure MD 14 NAPP15A Directional Coupler Bottom PWB...
Страница 177: ...VERSION 2 0 2023 04 20 MD 15 Figure MD 15 NAPH15 2 Way Splitter PWB VX1 5 VX2...
Страница 178: ...VERSION 2 0 2023 04 20 MD 16 Figure MD 16 2 Way Combiner PWB Nautel Part PU03B VX1 5 VX2...
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