Codan 2110 series, Repair Manual

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Introduction
2 Manpack Transceiver 2110 series Repair Guide
How to use this guide
The printed version of this guide supplied by Codan contains pages that fold out beyond
the folder on either side. This enables you to view block diagrams, test-point layouts and
flowcharts while reading relevant text on tests and procedures.
Begin the fault diagnosis process by using the Repair flowchart (see Figure 29 on
page 95 ). The same flowchart is also used to confirm that a transceiver is operating
correctly.
Follow the steps in the Repair flowchart systematically to ensure the correct fault is
isolated. If you step out of the flowchart to a test procedure, return to the same point on
the flowchart upon completing the test, and continue as prompted.
At some points where a pass criteria is not met, the Repair flowchart refers to a function-
specific fault diagnosis flowchart. Some steps require a simple task to be performed.
Other steps require a test to be performed. In such a case, the PCB, test point, and test
condition are provided.
Board replacement philosophy
To facilitate rapid and cost-effective servicing, and to effectively manage the increasing
sophistication of electronic assemblies, a strategy of board replacement applies to all
2110 series Manpack Transceivers.
As part of this strategy, all boards are designed and tested so that any individual board
can be replaced, while maintaining factory specifications of the entire unit.
If functional spare boards are held in stock, they may be substituted during the fault
diagnosis process in order to positively localise the fault to one board.
Disposal
Depending on the regulations within your country, some items from the transceiver may
need to be returned to a recycling facility for correct disposal. Please be aware of any
such regulations in your country and act accordingly.
Please be aware of your organisation’s policies for safeguarding the disposal of security
products. Please contact your Codan representative for further information on this
matter, if required.
NOTE
Not all faults may be diagnosed from the fault diagnosis flowcharts due to
the complex nature of the transceiver. In such an instance, or to confirm
that a PCB is faulty, see
page 27, Functional description of PCBs .
CAUTION
This product contains lead solder.