Tait International Limited TBCK4B Manual Do Utilizador

TB9400 Installation and Operation Manual

© Tait Electronics Limited September 2011

The following instructions refer to 

You must replace each fan duct assembly in its original loca-
tion in the front panel. Each module, or pair of modules, 
requires a specific type of fan duct to ensure the cooling air 
flow passes directly through the modules’ heatsinks. 

If a cooling fan has failed and you are fitting a replacement front panel, you 
must also fit the correct type of front panel for that 

base station

. Each type 

of 

base station

 has a different combination of modules, and must use a front 

panel fitted with fan ducts that match those modules.

The front panel for a 100 W 

base station

 has different fan ducts from the 

front panel for a 50 W 

base station

, as shown in 

. In a 50 W 

base 

station

, the fan duct for reciter and PA 1 is slightly different from the duct 

for reciter and PA 2. Each duct is designed to fit only in its correct position.

1.

If you have not already done so, carry out the instructions in 

2.

Reciter and 50 W PA Fan

a. Unplug the fan from the front panel board ( 

b

 or 

c

 ).

b. Remove the four screws labeled 

d

 or 

e

 and remove the fan duct 

assembly from the front panel.

c. Remove the fours screws holding the fan into the duct and 

remove the fan.

3.

100 W PA Fan

d. Unplug the fan from the front panel board 

f

.

e. Remove the four screws labeled 

g

 and remove the fan duct 

assembly from the front panel.

f. Remove the fours screws holding the fan into the duct and 

remove the fan.

4.

PMU Fan

a. Remove the 100 W PA or reciter and 50 W PA 2 fan duct assembly 

as described above.

b. Unplug the PMU fan from the front panel board 

h

.

c. Remove the two screws labeled 

i

 and remove the PMU fan duct 

assembly.

d. Remove the fours screws holding the fan into the duct and 

remove the fan.