User's Manual

Table Of Contents

EX7100 Technical Manual - Cover Removal

EX7100 Top and Bottom Cover Removal

The Terminal contains semi-conductor components that are

sensitive to electrostatic damage.

Electrostatic sensitive devices should only be stored and

transported inside electrically conductive static shielding

bags. Fault finding and module replacement must be

performed at “electrostatically safe work stations” where the

work bench surface; soldering iron and the operator are all

earthed to prevent the build up of harmful electrostatic

charges.

6.1 Procedure

To gain service access to any of the modules, the top or bottom covers must be removed

as follows:

1. Isolate the EX7100 Terminal from the incoming DC supply by removing the DC input

wires from the rear panel terminal block. It may also be necessary to remove any

signalling and antenna cabling.

2. Remove either cover as required by removing the screws. Keep all screws in a safe

place for later replacement.

Warning: The VHF Duplexer module is attached to the underside

of the top cover. Extra

care must be taken when removing this cover so as not to damage the RF

cabling connecting the duplexer to the modules within the terminal.

The UHF Duplexer and associated filters are attached to the outside

of the

top cover. Before disconnecting the RF cables to the rear panel, care should

be taken to note the correct cable connection.