TB7100 Service Manual General Information 75
© Tait Electronics Limited October 2005
6 General Information
This section discusses the two repair levels covered by the service manual,
details concerning website access, the tools and equipment 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. This section also describes the use of computer-
controlled test mode (CCTM).
6.1 Repair Levels and Website Access
Repair Levels This manual covers level-1 and level-2 repairs of the base station.
Level-1 repairs comprise the replacement of:
■ transmitter module
■ receiver module
■ SI board
■ UI board
■ speaker
■ fans
■ fan power board
■ temperature sensor board
■ volume-control potentiometer on the UI board.
Level-2 repairs comprise the repair of:
■ transmitter module
■ receiver module
except for special items. The special items are:
■ digital board
■ RF PAs (Q309 and Q310)
■ CODEC 1 (IC204)
■ copper plate.
Level-2 repairs also comprise the replacement of the connectors on the
transmitter and receiver modules, and the external connectors of the UI and
SI boards.
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