NV5LT/NV3.5LT TROUBLESHOOTING MANUAL
RESPONDING TO ALARMS
VERSION 3.3 2016-03-10
PAGE 4.1.63
4.
At the rear panel, remove any securing hardware for connectors that protrude through the rear
panel. Retain all hardware for re-installation.
– Locate the two DB-9 connectors (J3A and J3B) and the DB-15 connector (J5) on the rear panel. Using a 5 mm nut
driver or socket, remove the mounting nuts.
– Locate the AES/EBU XLR audio connector (J4) on the rear panel. Remove the two small pan-head Phillips screws.
– Remove the silver push button connector lock ("push" lever) on the XLR connector. Locate the HAS78 removal tool
from the ancillary kit, provided with the transmitter. Follow the manufacturer's instructions in
to remove the push button. You will need access to the front and rear of the receptacle to remove it.
– See
. Remove the locking rings from five BNC connectors (J6, J7A, J7B, J8A and
J8B). To remove the locking rings, use small 4 - 6 inch slip-jaw pliers. In a counter-clockwise direction, gently
loosen (do not tightly pinch or deform) each locking ring. Typically, half a turn with the pliers will loosen a locking
ring enough to remove it by hand. Remove and retain the locking rings.
5.
Remove the four small Phillips screws, which mount the front of the exciter/control PWB to the
chassis, located along the edge of the exciter/control PWB. Retain hardware for re-installation.
6.
Slightly lift the front edge of the exciter/control PWB and pull towards the front of the exciter.
7.
Locate or obtain a replacement exciter/control PWB (Nautel Part # NAPE86A or newer). Remove
the "push" lever from the XLR connector as detailed in
8.
Install the replacement exciter/control PWB. Replace all hardware for the through-chassis
connectors. Take care not to over-tighten the BNC connector locking rings.
9.
Install the four Philips screws that mount the front of the exciter/control PWB to the chassis.
10. Install the "push" lever into the XLR connector. Align it with the slot located on the top section of
the connector body and gently press it into position.
11. Reconnect all internal cables to the exciter/control PWB. If necessary, refer to Section 4.3 (Wiring/
Connector Lists) of this manual for connector mating details for A1.
12. Reinstall the exciter’s top cover.
13. Re-install the exciter in the transmitter and reconnect all external mating connectors, removed
previously. Restore all previous settings aas described in
“Exciter Replacement” on page 4.1.60
.
CAUTION!
When re-installing the exciter/control PWB, lift the PWB high enough so
that the mounting pillars do not damage parts on the underside of the PWB.
Содержание NV3.5LT
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Страница 256: ...NV5LT NV3 5LT TROUBLESHOOTING MANUAL WIRING CONNECTOR LISTS PAGE 4 3 14 VERSION 3 3 2016 03 10 ...
Страница 262: ...NV5LT NV3 5LT TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS PAGE 4 4 6 VERSION 3 3 2016 03 10 ...
Страница 294: ...VERSION 3 3 2016 03 10 SD 32 Figure SD 32 NAFP109B Output Power Probe and Sample PWBs ...
Страница 307: ...VERSION 3 3 2016 03 10 MD 8 Figure MD 8 NAPA31C Power Amplifier PWB Q1 ...
Страница 316: ...VERSION 3 3 2016 03 10 MD 17 Figure MD 17 NAL14 1 Input Reject Load Assembly L2 1 INPUT REJECT PWB TOP VIEW END VIEW ...
Страница 322: ...NV5LT NV3 5LT TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 4 6 2 VERSION 3 3 2016 03 10 ...
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