MITSUBISHI ELECTRONICS AMERICA, INC.
ST200 Series Technical Support Manual
77
January 2000
End-users encountering problems should consult the troubleshooting instructions found in the
operating instructions manual. If the problem cannot be identified, the user should call the
dealer.
1.
The dealer may be able to successfully resolve the problem over the phone, especially in the
case of operator error. If not, the dealer should inspect the unit.
2.
Depending on the type of problem, the dealer will inspect all or part of the equipment using
the trouble resolution procedures in the following sections and determine the type of
problem. If the dealer cannot successfully identify the problem, the Mitsubishi MSAT
Service Center can provide Technical Support. Together, they should be able to identify the
problem.
3.
The action taken by the dealer will depend on the type of problem identified:
A.
Operator Error
: this type of error, usually the result of poor user training, is often easy
to solve but difficult to identify. Commissioning and the use of the net radio function are two
common areas where inexperienced users frequently have problems. Special attention should
be given to ruling out operator error and proper instructions should be given to the end user
to correct the problem and prevent future problems, if required.
It is the dealer’s responsibility to ensure that the user is operating the MT in the proper
manner before equipment is sent to the Service Center for repair or exchange. If necessary,
the dealer should provide the necessary training to the end user.
B. System failure
: When a system failure is suspected, the dealer should call the MSAT
service provider’s customer service to confirm a system problem and receive further
instructions.
It is the dealer’s responsibility to rule out system related problems by coordinating with the
MSAT service provider before equipment is sent to the Service Center for repair or
exchange.
C. MT component failure
: If a faulty MT component is identified, the following process
should be followed:
1.
Use the first line problem analysis and checklists in the following sections to
characterize, verify, and isolate the equipment problem to a specific component.
2.
In the next troubleshooting step, the dealer will exchange one of the major
components of the MT system. The level of exchange for the MTs is based on the
following modules:
MT Component
Part Numbers
Handset
SZ100A
Cradle
SZ130A
Common Transceiver Unit
TU200A
Antenna Units
AU201A, AU601B
