Jands Event 4, Техническое руководство

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Circuit Notes 3 - 1
Revision 1 - 07 July
1999
Event 4 TECHNICAL MANUAL
2. Equipment Description
The Event 4 is constructed using a folded steel chassis, covered with a reverse
screened lexan. The decorative wooden ends are made from plantation growth native
Australian timber mounted on an aluminium former, which provides structural
rigidity. The timber also protects the fascia of the floppy disk drive. An additional pair
of front to back struts reduce flex and ensure front to back spacing is consistent with
the base.
A separate assembly is used to hold the power supply (PSU) and central processor
(CPU) cards. This bracket is removable as a complete pre-wired unit. A backpanel
vent next to the CPU card is removable from the inside and can be used to fit options.
2.1 Tools
With the exception of the base screws and D connector mounting nuts, metric
hardware is used throughout the console. The following tools are recommended:
•
7mm nut driver
•
5mm nut driver
•
#1 Posidrive screwdriver
•
#2 Posidrive screwdriver
2.2 Disassembly
Access to the console is through the base. To remove the base place the console face
down onto soft padding. Using the #2 posidrive screwdriver remove all (and only) the
silver screws, leaving the four black screws. The base can then be lifted away.
To remove the PSU/CPU assembly, disconnect all cables to the CPU and PSU, and
use the 7mm nut driver to undo:
•
three nuts next to the power inlet socket,
•
two nuts between the PSU and CPU,
•
three nuts between the CPU card and the vent/option panel
Use the posidrive screwdriver to undo:
•
two screws that hold the CPU tray to the chassis.
The assembly can then be removed by sliding it toward the front until it is clear of the
studs, then lifting it out of the chassis.
Note that the CPU card can be removed from the console without removing the
complete assembly. To remove the CPU card from the assembly:
•
Remove all connections to the card
•
Undo the D connector nuts
•
Undo the nine PCB mounting screws
•
Slide the CPU card away from the back panel until the D connectors are clear of
the assembly, and lift the CPU away.