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TM8100/TM8200 Service Manual General Information 103

4 General Information

Scope of Section This section discusses the two repair levels covered by the service manual,

details concerning website access, the tools, equipment and spares required,

and the setting up of the necessary test equipment. General servicing

precautions are also given, as well as details of certain non-standard SMT

techniques required for level-2 repairs.

4.1 Repair Levels and Website Access

Repair Levels This manual covers level-1 and level-2 repairs of the radios. Level-1 repairs

comprise the replacement of control-head boards, main-board assemblies,

and other parts of the radio; level-2 repairs comprise repairs of control-

head boards and, except for special items, main-board assemblies.

The special items are:

■ digital board

■ RF PAs (Q309 and Q310)

■ CODEC 1 (IC204)

■ copper plate.

Replacements of the connectors and volume-control potentiometer on the

control-head board are level-1 repairs. Replacements of the connectors on

the main-board assembly, however, are level-2 repairs because these repairs

entail the disassembly of the main-board assembly.

Important The circuit boards in the radio are complex. They should

be serviced only by accredited service centres (ASC).

Repairs attempted without the necessary equipment and

tools or by untrained personnel might result in permanent

damage to the radio and void the warranty.

Accreditation of

Service Centres

Service centres that wish to achieve ASC status should contact Technical

Support. They will need to provide evidence that they meet the criteria

required for accreditation; Technical Support will supply details of these

criteria. These centres must then make available suitable staff for training by

TEL personnel, allow their service facilities to be assessed, and provide

adequate documentation of their processes. They will be accorded ASC

status and endorsed for repairs of the radios after their staff have been trained

and their facilities confirmed as suitable. Existing ASCs need to apply for and

be granted an endorsement for repairs of the radios. All ASCs with the

necessary endorsements may carry out level-1 and level-2 repairs of these

radios, whether under warranty or not.

Tait TM8110 Service Manual

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