Repair procedures, tests, and adjustments
78 Manpack Transceiver 2110 series Repair Guide
1 Ensure that:
• all plugs and sockets are orientated correctly
• all cables are positioned correctly and clamped where necessary
• cables are not pinched by shields, or touching any sharp edges
• all PCBs and mechanical assemblies are fixed securely
1 If you want to access the:
• Antenna Tuner PCB, remove the ATU screen
• Audio & Control PCB, remove the CTRL screen
• RF/IF & Synthesiser PCB, remove the Rx Tx screen
• PA & Filter PCB, remove the PA screen
To access the Front Panel PCB and Front Panel Assembly:
1 Undo the screw on the rear of the antenna stud to disconnect the antenna tuner.
1 Remove the four screws at the rear of the Front Panel PCB that hold the chassis to
the front panel.
1 Remove the screw and four spacers from the Front Panel PCB, then carefully
separate the connectors holding the PCBs together.
1 If the GPS option is fitted to the Front Panel PCB, disconnect the thin coaxial cable
that passes through to the Front Panel Assembly.
1 If the external GPS antenna connector is fitted, disconnect the thick coaxial cable
that passes through to the Front Panel Assembly.
WARNING Do not use the front panel to pull the chassis out of the housing.
NOTE
If any cables, connectors or PCBs appear damaged, replace these
items before proceeding.
NOTE Ensure all screens are in place to provide shielding.
NOTE
The name of each PCB function is printed on the screen covering the
board.
CAUTION
Do not remove the PCB that covers the keymat from the Front Panel
Assembly. This can only be re-sealed in the factory.
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