Tait TB8100 - Replacing the Power Amplifier

92 Replacing Modules TB8100 Installation and Operation Manual
© Tait Electronics Limited June 2005
6.5 Replacing the Power Amplifier
Important Before removing a PA, disconnect the DC input and RF
input first, followed by the RF output (and DC output on
the 12V PA). After refitting the PA, reconnect the RF
output (and DC output on the 12V PA) first, followed by
the RF input, and then the DC input.
Removal 1. If you have not already done so, carry
out the instructions in “Preliminary
Disassembly” on page 88. If
necessary, remove the control panel,
as described in “Replacing the
Control Panel” on page 89.
2. At the rear of the PA, unplug the RF
output cable
b. 12V PA only: also
unplug the battery supply lead
c,
and Power Saving control cable
d
(if fitted).
3. At the front of the PA, unplug the DC input cable (DC output cable
on the 12V PA)
b and the RF input cable c , and move both cables
to one side. Unplug both ends of the system control bus
d and
remove it.
4. Loosen the screw securing the retaining clamp(s)
e and rotate the
clamp(s) through 90° to clear the module.
5. Slide the PA out of the subrack, taking care not to damage any of the
cables.
cdb
bed
c
b
b
d
dec
e
e
(obscured)