Acorn Products Z80 SECOND PROCESSSOR 409 用户手册
2. Packaging and Installation.
The Z80 second processor is supplied in a two-part moulded polystyrene
packing which is further packaged within a cardboard sleeve. Supplied
with the second processor is a DNFS ROM with fitting instruction
sheet, a set of reminder cards for the red function keys, 7 floppy
disks, an end-user licence and a guarantee card. For BBC
Microcomputers fitted with MOS ROMs below version 1.2, a voucher
redeemable against replacement of lower version ROMs, is also
supplied.
Note: Care should be taken when unpacking and repacking this unit to
ensure that all items are positioned correctly, especia11y the floppy
disks which should first be packed in plastic bags and laid flat.
packing which is further packaged within a cardboard sleeve. Supplied
with the second processor is a DNFS ROM with fitting instruction
sheet, a set of reminder cards for the red function keys, 7 floppy
disks, an end-user licence and a guarantee card. For BBC
Microcomputers fitted with MOS ROMs below version 1.2, a voucher
redeemable against replacement of lower version ROMs, is also
supplied.
Note: Care should be taken when unpacking and repacking this unit to
ensure that all items are positioned correctly, especia11y the floppy
disks which should first be packed in plastic bags and laid flat.
The Z80 Second Processor User Guide and accompanying literature is
supplied packed separately.
supplied packed separately.
A mains power switch is located at the rear of the second processor.
A 250mA. type T (slow blow) fuse is located at the rear of the second
processor. Before removing this fuse, the second processor must be
disconnected from the mains supply. Access to the fuse may be gained
by undoing the round cover with the slot in it using a screwdriver.
The mains supply must not be reconnected until the fuse is relocated
in its holder with the cover screwed home.
Do not use the second processor in conditions of extreme heat, cold,
humidity or dust, or in places subject to vibration. Do not block the
ventilation under or behind the second processor. Ensure that no
foreign objects are inserted through any openings in the second
processor.
processor. Before removing this fuse, the second processor must be
disconnected from the mains supply. Access to the fuse may be gained
by undoing the round cover with the slot in it using a screwdriver.
The mains supply must not be reconnected until the fuse is relocated
in its holder with the cover screwed home.
Do not use the second processor in conditions of extreme heat, cold,
humidity or dust, or in places subject to vibration. Do not block the
ventilation under or behind the second processor. Ensure that no
foreign objects are inserted through any openings in the second
processor.