12/20/11
888-2595-001
2-21
WARNING: Disconnect primary power prior to servicing.
Section 2 Installation
ZX Series
STEP 5
Install all PA and PS modules in transmitter. If transmitter was shipped
with all PA and PS modules in place, loosen thumsbscrews on PA
modules, insert PA modules fully into sockets, and re-tighten
thumbscrews. PA modules may be shipped in a partially-removed
“safety” position to prevent connector damage during shipment. PS
modules are already fully seated during shipment. Note that PA module
thumbscrews need only be finger tight. Do not use a screwdriver to
tighten thumbscrews.
NOTE:
The factory test data report shipped with the transmitter contains the serial num-
bers of the PA modules and their slot locations within the transmitter during fac-
tory testing. While it is not critical to operation, the transmitter readings may be
closer to the report if the PA modules are placed in the same positions used dur-
ing factory testing. To correctly duplicate factory conditions, the module serial
number tag should be on the left-hand side of the module when inserted into the
transmitter.
STEP 6
Ensure these basic requirements have been met before proceeding:
a.
Transmitting antenna or terminal resistance (dummy load) of 50
ohms is connected to system RF output.
b.
All rack-mounted units have continual AC mains safety ground con-
nection via green/yellow conductor (third prong) back to main safety
ground at AC service entrance.
c.
Suitable AC mains service connected to transmitter with overload
protection (breakers) and surge protection devices installed.
d.
Transmitter rack and all rack-mounted units have protective RF earth
grounding as necessary.
e.
Blower exhaust and air inlet openings are not blocked, and all neces-
sary duct work is in place.
f.
Original factory test data sheet shipped with transmitter is on-hand
and ready for consultation.
g.
External interlock connection closed, either on REMOTE CON-
TROL connector of a single PA chassis transmitter or on remote ter-
minal board of a larger transmitter.
STEP 7
Switch on mains power to exciter(s). Fan internal to exciter should start.
STEP 8
Switch on mains power to ZX amplifier chassis(s). Small fans internal
to power supplies should start automatically.
Summary of Contents for ZX2500
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Page 6: ...MRH 2 888 2595 001 12 20 11 WARNING Disconnect primary power prior to servicing...
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