Repair Procedure - Dsc210 - DataKinetics DSC110 User Manual

8.3 Repair Procedure – DSC210
8.3.1 General
Access to the converter is gained by fully extending the mounting slides and
removing the lid from the chassis. This will be the only access required for most
maintenance and repair procedures.
Once a faulty module has been identified it should be removed from the
equipment and replaced with a module of the same type. Any software
configuration of the replacement unit will be performed automatically by the
converter.
If the solid state memory card requires replacing, the configuration data will be lost
and the equipment will require re-configuring. This can be loaded from disk if a
configuration dump is available.
The option link and switch settings of any replacement CS6 card must be verified
against that listed in this manual before being installed in the equipment, taking
care to use the correct setting depending on the CPU card in use.
8.3.2 Equipment preparation for maintenance procedures
The equipment should be switched off and isolated from the power source. The
screws securing the front panel of the equipment to the mounting rack should be
removed and placed to one side for re-fitting when the maintenance operation is
complete. The unit should be withdrawn from the cabinet by fully extending the
slides.
The seven lid retaining screws should be loosened (but not removed) so that the
lid can slide backwards until the lid is positioned such that the screw heads are
directly above the relief holes at the end of each fixing point slot. The lid may then
be removed by lifting upwards.
If any electrical circuit board is to be replaced, a wrist strap should be connected
to the equipment earth stud or other suitable earth point, and worn by the person
carrying out the maintenance procedure.
All replacement boards will be supplied enclosed in an electro-static protective
bag which should be used when carrying boards from station to station. The board
should remain in its protective packaging until it is to be installed in the equipment
and should be unpacked in an electrostatic free environment, using wrist straps
and dissipative mats. If such an environment is not available, the board should be
placed on its protective bag during any work.
When the sub-assembly has been replaced, the chassis lid should be re-fitted and
the retaining screws tightened. The equipment should then be pushed back into
the mounting rack and the rack fixings replaced.
8.3.3 Replacement of Signalling Processor type CS6
CS6 signalling cards are fitted in board position 5 .. 20, each board position is
listed across the card guide front plate and on the rear of the unit. Before the
board can be removed all connections to the two PCM interface ports must be
disconnected, noting which cable is connected to each connector.
DataKinetics DSC110 / DSC210 User Manual Issue 12 Page 160