Power Computing ATARI PC720 User manual

POWER
COMPUTING

Power Computing
Thankyou for purchasing your new drive from Power Computing - the
peripheral specialists. Your drive is of the latest design,and comes with
a full guarantee for a year.
ATAFU PC720
................................................................... Section 1
ATAFU PC720E ................... .. ................................................................ Section 2
AMIGA PC880 Section
3
AMIGA DUAL .......................................................................................... Section 4
AMIGA PC880B Section 5
Returned Goods-please notethat wecannot acceptgoodsfor return without a
Power Computing RA number. uyouthink that you have received afaulty
product, please check the troubleshootingguidein this manual carefully, and
then call Power Computingfor instructions and authorisation.
Power Computing Ltd Unit 8 Railton Road Woburn Road Ind.
Estate Kempston Bedford MK42 7PN
Telephone: [phone] (WELINES) Fax: [phone]

Section One
The Atari
PC720 Drive
Installation Instructions
1. Switch off your Atari and all its peripherals.
2. Fit a plug on the PC720's mains lead. and plug the drive in.
3. Connectthe disk drive's connectortothe drive socket onthe back
panel of yourAtari. Theplug will only fit one way into the socket. Push
the drive switch (located onthe back panel of the disk drive) down (on).
This switch controls the drive's internal power supply.
4. Switch on the peripherals and computer. The drive may now be
treated in the same way as your internal drive. Note however, that your
Atari will NOT boot from the external drive. even if the internal
drive is empty.
Note: NEVER remove a floppy disk from the drive while the drive light
is on
- you may damage the disk or lose information on it.
Technical Data.
Storage Capacity
Unformatted
Formatted
Transfer Rate
Track Density
No Cylinders
Total No Cylinders
DC Power Supply
Dimensions
Weight
Double Density
l mbyte
720k Bytes
250k bit/Sec
135 TPI
80
160
5v
230 X 104 X 30 mm
1Kg.

Section Two
The Atari
PC720E Drive
Installation Instructions
I. Switch off your Atari and all its peripherals.
2. Remove yourjoystick from the Atari (if fitted),and plug the black
joystick lead into the emptyjoystick port. This lead serves to pick up the
power for your drive,and thejoystick may still be plugged into the joys-
tick through port. located on the rear panel of the drive.
3. Connect the disk drive's connectorto the drive socket on the back
panel of your Atari. The plug will only fit one way into the socket.
4. Switch on the peripherals and computer. The drive may now be
treated in the sameway as your internal drive. Note however, that your
Atari will NOT boot from the external drive, even if the internal
drive is empty.
Note: NEVER remove a floppy disk from the drive while the drive light
is on
- you may damage the disk or lose information on it.
Technical Data.
Storage Capacity
Unformatted
Formatted
Transfer Rate
Track Density
No Cylinders
Total No Cylinders
DC Power Supply
Dimensions
Weight
Double Density
l mbyte
720k Bytes
250k bit/Sec
135 TPI
80
160
5v
230
X 104 X 30 mm
1Kg.

Section Three
The
Amiga PC880 Drive
The PC880 leads the field of Amiga Drives, including in its design an
isolating switch to enable or disable the drive. a thru port for daisy
chaining. and the Power Computing anti-click board to take away that
annoying 'empty drive' click. It is compatible with the Amiga
500, 1000,
and 2000 machines.
Installation Instructions
1. Switch off your Amiga and all its peripherals.
2. Switch the PC880's isolating switch (located on the rear of the
drive to position 1.
3. Connect the disk drive's connector to the drive socket on the
back panel ofyourAmiga. Theplug will only fit oneway into the socket.
Tighten the screws on the connector to the computer back panel.
4. Turn on the computer and peripherals. The drive will draw its
power from yourAmiga, and there is noneed for anexternal power sup-
ply for the PC880.
5. Once the Workbench screen has booted from your internal drive,
place a disk in your PC880, and a drive icon will appear on the
Workbench. If no icon appears. and the drive LED fails to light,
SWITCH OFFyour Amiga and peripherals, reverse the position of the
PC88O's isolating switch (located on the rear of the drive). and repeat
steps 3-5.
Note:
a) NEVER remove a floppy disk from the drive while the drive light
is on
- you may damage the disk or lose information on it.
b)
As the drives are designed for very low power consumption, two
PC880s may be daisy chained from your Amiga. However. more than
two is not recommended.

c)The power onyour Arniga MUST be switched off before the external
drive can be enabled
or disabled.
Technical Data.
Storage Capacity
Unfonnatted
Formatted
Transfer Rate
Track Density
No Cylinders
Total No Cylinders
DC Power Supply
Dimensions
Weight
Double Density
l mbyte
880k Bytes
250k bit/Sec
135 TPI
80
160
5v
220
X 104 X 30 mm
1 Kg.

Section Four
The
Amiga Dual Drive
The Power Dual Drive for the Amiga gives you the benefit of two exter-
nal floppy drives in one compactcase. The unit has its own power sup-
ply sothat power is not drained from the Arniga 500. The two external
drives are independent and copying operations can be carried out bet-
ween the computer and either drive or from one drive to another. Both
drives possess the unique Power Anti-Click feature so that they do not
click when empty. The dual drive is compatible with Arniga 500, 1000.
2000. 1500 machines.
Installation Instructions
1. Switch off your Amiga and all its peripherals.
2. Switch the isolating switch (located on the rear of the drive) to
position
1
3. Connect the disk drive's connectorto the drive socket on the back
panel of your Amiga. The plug will only fit one way into the socket.
Tighten the screws on the connector to the computer back panel.
4. Plug the drive into the mains and turn on using the large switch
5. Once the Workbench screen hasbooted from your internal drive,
place a disk in either of the external drives,and a drive icon will appear
onthe Workbench. If noIcon appears,and the drive LED fails to light.
SWITCH OFFyour Amiga and peripherals, reverse the position of the
isolating switch (located on the rear of the drive), and repeat steps 3-5.
Note:
a)
NEVER remove a floppy disk from the drivewhile the drive light is on
- you may damage the disk or lose information on it.

b) The power on your Amiga MUST be switched off before the dual
drive can be enabled or disabled.
c) Due to the multi-tashing nature of the Amiga, it is unadvisable to
place twodisks into the dualdrive atexactly the same moment as valida-
tion errors may be produced.
Technical Data.
Storage Capacity
Unformatted
Formatted
Transfer Rate
Track Density
No Cylinders
Total No Cylinders
DC Power Supply
Weight
Double Density
2 X l mbyte
2 X 880k Bytes
250k bit/Sec
135 TPI
80 PER DRIVE
160 PER DRIVE
5V (FROM INTERNAL PSU)
3 Kg.
SPECIAL NOTE - DUAL DRNE WITH BLITZ
For instructions on the special features of this dualdrive, please refer to
the PC880B section of the manual.
Blitz on the Dual drive works in much the same way as Blitz on the
PC880B (see enclosed manual).However. you should note the following
important points:
Blitz Dual copies to TWO disks at once. You must have a disk in
each drive for it to copy (even if one of them is a dummy).
You must reboot your computer when changing from Blitz mode to
normal mode or vice versa.
The dual drive will "click when empty if it is in Blitz mode. This is
normal and is intended to warn you when the drive is in Blitz mode.

Section Five
The PC88OB Drive
The PC880B leads the field of Amiga drives, including in its design the
followine features:
'2
Isolating Switch Rear
of PCSSOB
Thru' port
Blitz Cop~erhardware built In
Virus-Blocker sw~tch
Anti-Cl~ck
Isolating Switch
PC880B Switches
Isolating Switch
The PC880B has TWO switches on the back. The ISOLATING switch
has two positions and is marked 0 and 1.
In position 0, the computer will not recognise the drive.
In position 1. the drive can be used.
Thecomputer checks what drives are present when you first switch on.
This means that:
Turning this switch on while the computer is on will have no effect.
To change the isolating switch, you MUST switch the computer off
first.
Function Switch
The Function Switch has three positions marked A, 0 and B
In position 0, the drive operates as NORMAL.
In position
A, the "Anti-Virus" function is selected.
In position B, the "Blitz" function is selected.