Acorn FileStore E01, Руководство по обслуживанию

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Chapter 4 E20 Circuit description
FileStore Service Manual 37
3. E20 Disassembly and assembly
DANGER
Removing the cover of an E20 unit exposes dangerous voltages. Ensure that the unit is
switched off and the plug removed from the mains supply before removing the cover.
WARNING
A number of components within the units are STATIC SENSITIVE. It is possible that these
components may be damaged if subjected to a static discharge. Avoid contact with the hard
disc at all times without taking adequate precautions against static.
WARNING
When the hard disc drive is removed for service work, great care must be taken not to drop,
jar or shock the unit in any way. Under no circumstances should the drive itself be opened to
expose the head mechanism: this can only be done by the manufacturer in a special ultra-
clean room.
3.1 Disassembly procedure
(1) Power down the unit for disassembly.
(2) Disconnect the unit from the mains.
(3) Unclip the front and rear mouldings.
(4) Unclip the side mouldings.
(5) Remove the four screws holding the top metal wrap to the unit and slide it off backwards.
3.2 Serviceable parts
The only dealer-serviceable part of the E20 unit is the Host Adaptor printed circuit board.
Faults detected in the disc drive, disc controller board or power supply mean that the faulty
part must either be returned for repair or replaced. Dealers may hold stock of these items and
should refer to information provided by their supplier for service procedures for these units.
3.3 Assembly procedure
To reassemble the unit, simply reverse the above procedure.
When reassembling the unit, ensure that full earth testing has been satisfactorily completed.