10
Servicing Procedures - Main Unit
Due to the complexity of the product and the use of surface mount technology, the
electronic circuitry is not serviceable without specialised training and equipment.
The repairs detailed in this manual are therefore limited to replacement of certain parts.
Fault finding is limited to checking for the presence or absence of signals around
suspect components using an oscilloscope or multimeter.
Repairs should only be undertaken by suitably skilled service personnel.
Refer to section 2.6.
10.1
Torque Settings
To ensure that the case fixings are not damaged during servicing and that assemblies are
securely fixed, it is essential that the torque settings for
all
assemblies are adhered to.
Failure to torque fixing screws correctly may result in damage requiring case
replacement and may affect reliability.
The torque setting are detailed in the relevant procedure and listed in Appendix B.
Issue: 2 DRAFT
37
Rev: a
614365
CAUTIONS
This equipment contains static sensitive devices. Refer to
Appendix A for recommended anti-static handling precautions.
It is essential that these procedures, or equivalent, are adopted
to avoid static damage to the circuitry.
Due to the high density tracking and small size of components,
extreme care in handling the PCBs must be taken at all times.
When soldering, take care to ensure that minimum heat is
applied to the boards and components for the minimum time
necessary to ensure high quality joints. Inspect the area around
repairs for solder splashes and bridges. Refer to Appendix A for
details of recommended soldering procedures.
