888-2408-002 2-17
WARNING: Disconnect primary power prior to servicing.
Installation & Initial Turn-On
NOTE:
If the blower does not run, check the position of wires #1, #2 and #3
for 3-phase or wires #1 and #2 for a single phase, at A17TB1. If these
are connected in the wrong position, the fan may not operate (this is
also true for the single phase transmitter due to switching on the Low
Voltage Supply Board). Also check blower fuses F1 and F2 located in
the bottom deck of the front PA compartment (F2 not used in 3 phase
4-wire systems).
STEP 6 If the PA VOLTS reading appears okay then shut the transmitter off
and insert the PA and IPA Modules as directed below. See Figure 2-6
and Figure 2-7.
STEP 7 PA Module installation - Four PA modules and 1 IPA module are
inserted in the front of the cabinet and four PA modules are inserted
in the back of the cabinet. The PA and IPA modules are symmetrical
which means they can be inserted with either side of the module
facing up and cannot be inserted improperly. The modules should
only require a minimal amount of force for insertion into the card
edge connectors. If they do not slide in easily, check the connectors
on the combiner boards, and visually inspect the combiner assembly
to verify nothing has come loose and/or moved during shipment.
!
WARNING:
THE PA MODULES ARE DESIGNED TO HANDLE VERY HIGH TEMPERATURES
AND MAY BE EXTREMELY HOT. DO NOT TOUCH THE MODULES WITH BARE
HANDS AFTER THE TRANSMITTER HAS BEEN RUNNING, ESPECIALLY IN HIGH
AMBIENT TEMPERATURE ENVIRONMENTS.
STEP 8
Optimization - The Factory Test Data Sheet contains the serial
numbers of each of the PA and IPA modules. The data sheet also tells
which slot each of the PA modules were connected into during
factory testing. While it is Not Critical to operation, the transmitter
readings may be closer to the data sheet if the PA and IPA modules
are placed in the same positions as during factory testing. The
module serial number tag should be on top of the module when
inserted into the transmitter.
!
CAUTION:
EACH MODULE HAS TWO CAPTIVE THUMBSCREWS WHICH MUST BE
TIGHTENED TO ASSURE PROPER MODULE OPERATION. THEY SHOULD
BE FINGER TIGHT. IF A SMALL SCREWDRIVER IS USED, BE SURE NOT
TO OVERTIGHTEN.
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