Texas Instruments PHP1850 User manual


INTRODUCTION
The
Texas
Instruments
Disk Memory Drive is ahigh-speed. high-
volume
memory
device.
The
disk
drive
reads
information
from
and
writes Information
on
a5-114
inch
diskette (not included).
It
can
read
or
write information from
any
place
on
the
diskette.
and
can
rapidly locate
any
position or
me
on
the
diskette.
The
disk
drive
spins
the
diskette
at
a
constant
speed
and
controls
the
movement
of
the
magnetic
head.
To
function properly. a
disk
drive
must
have
adisk controller.
The
Disk
nriVp.
Controller
tells
the
disk
drive
where
to
position
the
magn~tlc
head
in
order
to
read
or write information properly.
The
controller also
puts
a
catalog
on
the
disk.
making
the
data,that
has
been
written
easy
to
'locate.
The
controller does
these
things
in
response
to
commands
which
you
choose
with
the
Disk Manager
Sdlt~
State
Software™
Command
Module or in
response
to
the
statements
in aTI BASIC program.
This
manual
contains
only
the
set-up,
service,
and
warranty
Information for
the
Disk Memory Drive. For
instructions
regarding
setup.
tests.
and
operation of
the
complete
disk
system.
please refer to
the
Disk
Memory
System
manual
included
with
the
Disk Drive
Controller.
IMPORTANT
Record
the
serial
number
from
the
bottom
of
the
Disk
Memory Drive
and
purchase
date
in
the
space
below.
The
seriai
number
is identified
by
the
words "SERIAL NO."
on
the
bottom
case. Always relerence
this
information
in
any
correspondence.
PHP1850
Mod.1
No.
S.,I.I
No.
Pu,oh
•••
D.,.
Copyright
C
1980,
Texas
Instruments
Incorporated
1

SET
UP INSTRUCTIONS
Carefully
unpack
the
Disk Memory Drive
and
its cable.
The
disk drive is
a
precision
device
which
l1~P.S
moving
partsi
with
exacting
tolerances.
so
handle it carefully. Save
the
packing materials
and
cartons so
that
you
can
safely
transport
the
unit
later.
The
drive
as
it
comes
from
the
factor-y
is
rCi:tl.1y
tu
run
as
the
only
etr1ve
on
your
system. If you are
using
more
than
one drive.
the
following
process
must
be
done to all
but
one of the drives
that
you are using.
The
last
drive
should
be
connecterl
without
being
altered.
DO THE FOLLOWING ONLY
IF
YOU
ARE
USING TWO OR THREE DRIVESI
1.
WARNING: ALL POWER CORDS MUST
BE
DISCONNECTED
FROM THE POWER OUTLETS DURING THE FOLLOWING
PROCEDUREI
2. On all
but
one of
your
drives.
use
aPhillips
head
screwdriver to
remove the six screws
that
hold the cover. Lift
the
cover
off.
3.
Locate
the
main
,printed
circuit
board.
On
ll, locaLe the
lennlnatlon
resistor pack.
It
has
14 leads
and
looks like
an
integrated circuit.
(The
main
boards look slightly different on
the
two different kinds of
drives.
but
the
pack
Is
in
the
Ramp.
place
on
each.)
Be
careful
not
to
disturb
the
strapping
pack (which
Is
also removable) located very
near the resistor pack.
STRAPPING
PACK
RESISTOR PACK
4. Remove the termlnatlon
~eslstor
pack
by prying
each
end
up
slightly
with asmall screwdr:ver
and
then
lifting it
out
by
your
thumb
and
forefinger. Pull _:,'alght up,
2

5.
Save
the
single drive
termination
resistor
pack
so
that
you
can
reinsert
it
If
the
drive is
ever
to
be
used
as
a
single
or
last
disk
drive.
Note
that
If
the
socket
for
the
reststor
pack
has
more
holes
than
there
are
pins
on
the
pack,
Install
the
pack
toward
the
outer
edge
of
the
circuit
board,
leaVing
the
unused
holes
toward
the
center
of
the
board.
6.
Reattach
the
cover
on
the
drive.
aligning
and
tightening
the
screws
carefully. DO NOT OPERATE ANY UNITS WITHOUT
REATTACHING
THE
COVER.
General
Notes
The
drives
shoulrl
hf"
IOl"ated
conveniently
so
that
you
CQn
inacrt
and
remove
diskettes.
The
drives
should
be
placed horizontally.
Stacking
of
disk drives
Increases
internal
temperatures
and
may
adversely
affect
the
diskettes.
Disk
drives
and
diskettes
are
affected
by
static
electricity,
magnetic
fields,
and
dust.
The
.drives
should
not
be
near
the
monitor
screen.
as
it
generates
apowerful
magnfl!tft:'
field.
If
possible,
,the
drives
should
be
in
alow
humidity,
dust-tree
environment,
free from
static
electricity. If
static
electricity Is a
problem
In
your
area,
treatIng
your
carpet
with
an
anti-static
preparation
may
be
helpful.
Setting
up
the
controller
and
disk
drives Is aSimple process. First,
connect
them
to
the
Home
Computer,
and
then
test
their
operation
as
outl1ned in
theDlsk
Memory
S!J
.•t
..
m
manual.
CAUTION
The
electronk
C'ompnnt::"nts
of
the
controller
and
disk
drives
can
be
damaged
by
static
electricity
discharges.
To avoid
damage,
do
not
touch
the
connector
contacts
or
expose
them
to static
electricity.
Once
you've
unpacked
the
units
and
made
any
modifications
necessary
to
the
diSk drives,
you're
ready
to
connect
the
units
to
the
Home
Computer.
3

Connecting
the
Disk
Drives
Each
drive
has
an
attached
cable
with
two
connectors.
one
at
the
end
of
the
cable
and
one
near
the
middle
of
the
cable.
The
connector
on
the
end
goes
into
the
port
on
the
rear
of
the
controller or.
in
the
case
of
multiple
disk
drives.
into
the
middle
connector
on
the
preceding
drive
unit.
usine
the
adapter board (see t1lustratlon hp.lowl. TVntp·
It
may
be
necessary
to
rotate
the
connector
in
order
to
insert
it.
It
goes in easily if
you
have
it
positioned
correctly.
If
you
have
one
drive.
connect
it
to
the
controller.
(Remove
and
save
the
adapter
board
in
the
event
adrive is
added
later.)
If you
have
more
than
one
drive.
connect
them
to
the
controller
in
series,
wtth
all
but
the
last
one
(the
one
farthest
away
from
the
controller) modifled
as
described
above.
Connect
the
first drive
to
the
port
on
the
rear
of
the
controller.
The
connector
on
the
end
of
the
second
drive's
cable
plugs
into
the
adapter
board
in
the
middle
of
the
first
drive's
cable.
The
third
drive is
connected
to
the
second
drive
in
the
same
way.
Whether
you
have
two
or
three
drives.
the
drive
farthest
away
from
the
controller
should
be
the
one
that
has
not
been
modifled.
.
ADAPTER
BOARD
~
•
==
coc==c
=ClI::l~l:l=
=<======
=o•
---
---
---
---
---
---
---
DSK
1
---
---
---
---
---
---
---
DSK2
---
---
---
---
---
---
---
DSK3
The
first drive.
the
one
connected
directly
to
the
controller. is identified
as
DSKI
by
TI·BASIC.
The
second
drive.
connected
to
the
cable
of
nSK1,
i~
nSK2.
The
third
drive
i5
DSK3.
The
labels prOVided
with
your
drivels)
can
be
used
to identify
each
drive.
4

•
SERVICE
AND
WARRANTY
INFORMATION
In
Case
of
Difficulty
If
the
disk
system
does
not
appear
to
be
working
properly,
check
the
following:
1,
Power
-Be
sure
all devices
are
plugged
In,
Then
tum
on
the
power
to
the
unit8
in
the
!JI0l-Jt:l
~t::4ut:l1ct:::
1.11:sk
urives
and
cuntroller
first,
and
then
the
console
and
monlior.
2,
Connector
Separation
-
Check
for
proper
alignment
of
the
console
ann
the: r.ontrnllf'T
(they
should
be
parallel).
3, Cable -
Check
that
the
proper
cables
are
being
used,
Check
the
cables
for loose
or
broken
leads,
Check
to
see
that
the
cables
are
properly
connected,
right
side up,
4.
Software
-Be sure all
commands
and
statements
are
used
as
described
In
this
manual,
If
the
disk
system
works
properly
wlih
the
Disk
Manager
Command
Module
but
not
with
a
program,
the
problem
is
probably
With
the
program,
EspeCially
cheek
the
use
of
OPEN, INPUT,
and
PRINT.
5.
Diagnostic
Tests
-
Check
that
the
diskette, controller,
and
disk
drives
are
workl~g
properly
by
running
the
diagnostic
tests.
6.
Home
Computer
-
Check
to
see
that
the
Home
Computer
works
properly
wlih
all accessories
disconnected.
7. If
none
of
the
above
procedures
corrects
the
difficulty.
consult
"If
You Have
guestions
or
Need
Assistance"
or
see
the
"Service
Information"
portion
of
the
User's
Reference
Guide.
Diskette
Failure
IndLcators
Diskettes can lose information because of ascratch on their surface.
The
Information
lost
depends
on
the
shape
of
the
scratch.
A
circular
scratch.
probably
cau!ied
by
!iotnething
being
ground
into
the
diskette
by
the
magnetic
head,
may
destroy
an
entire
track,
usually
losing
data
from
one
file.
A
straIght
scratch,
:!tuch
as one
made
uy i:l
IJt::IlL:1l
ur
fiugernatl
being
run
across
the
exposed
area
of
the
diskette,
may
destroy
all
the
Information
on
a
number
of sectors.
This
usually
causes
Information
to
be
lost from
mn~t
of
thp
ftlf:".fil.
on
the
diskette.
If
the
!icratch
goes
through
sector
0
or
1,
all
contents
of
the
diskette
are
lost,
since
those
sectors
hold
the
catalog
whtch
the
computer
uses
to find files.
Scratchcs
too
small
to
be
visible
to
the
naked
eye
can
cau~
infoHllation
to
be
lost.
Information
can
also
be
lost
due
to
exposing
dtskettes
to
magnetic
fields
or
excessive
heat
or
cold
and
by
bending
or
striktng
them.
5

Exchange
Centers
(Local
Service
Options)
If
some
part
of
your
disk
system
requires service.
instead
of
returning
it
to
~
sp.rvlrf' (;lrllity for
repair
or
replacement,
you
may
elect
to
exchange
it
for afactory reconditioned
unit
by
going
in per!?on to
one
of
the
exchange
centers
which
has
been
established
across
the
United
States.
A
handling
fee
wl1l
be
charl!ed
by
the
exchange
center
for
in-
warranty
exchanges.
Out-of-warranty
exchanges
will
be
charged
at
the
rates
in effect
at
the
time
of
the
exchange.
Please refer to
the
enclosed
Exchange
Service
listing or call
the
Consumer
Relations
Department
for
exchange fee tnformation and the location
01
the nearest
exchange
center.
IfYou
Have
Questions
or
Need
Assistance
If
you
have
questions
concerning
disk
system
repair or peripheral,
accessory,
or
software
purchase.
please
call
our
Consumer
Relations
Department
at
800-858-4565
(toll free
within
the
contiguous
United
States
except
Texas)
or
800-092-4279
witliiu
Tt::xa~.
The
operators
at
these
numbers
cannot
proVide
technical
assistance_
For
technical
questions
about
programming,
specific applications, etc
..
you
can
call tlUti-141-2titi3. Please
note
that
this
is
not
atoll-free
number,
and
collect calls
cannot
be
accepted.
As
an
alternative.
you
can
write
to:
Consumer
Relations
Department
Texas
Instruments
Incorporated
P.O. Box
53
Lubbock.
Texas
7!J4Utl
Because
of
the
number
of
suggestions
which
come
to
Texas
Instruments
from
many
sources
containing
both
new
and
old ideas,
Texas
Instruments
wlll
consider
such
suggestions
only if
they
are
freely
given to
Texas
Instruments.
It
Is
the
polley of
Texas
Instruments
to
refuse to receive
any
suggestions
in
confidence.
Therefore,
if
you
wish
to
~hare
YOUI"
:5uggc5t10115
with
TeA~
III~lrurnt:nt5.
or
jf
you
Wish
us
to
review
any
BASIC
langualle
program
which
you
have
developed.
please
include
the
follOWing
statement
In
your
letter:
"All
of
the
InfofJui:1UuU
[UJ
wanlel1
hereWllh
Is
presenteCl
to
Texas
Instruments
on
anonconfidential. nonobligatory
basis;
no
relationship, confidential or
otherwise,
expressen
or implied,
is
established
with
Texas
Instruments
by
this
presentation.
Texas
Instruments
may
use,
copyright.
distribute.
publish,
reproduce.
or
dispose
of
the
information
in
any
way
without
compensation
to me_"
6

THREE-MONTH
LIMITED
WARRANTY
THIS
TEXAS
INSTRUMENTS
DISK
MEMORY
DRIVE
WARRANTY
EXTENDS
TO
THE
ORIGINAL
CONSUMER
PURCHASER
OF
THE
ACCESSORY.
WARRANTY
DURATION
This
Disk
Memory
Drive
is
warranted
for a
period
of
three
(3)
months
from
the
date
of
orIginal
purchase
by
the
consumer.
WARRANTY
COVERAGE
This
Disk
Memory
Drive
is
warranted
against
defective
materials
or
workmanshIp.
THIS
WARRANTY
IS
VOID
IF
THE
ACCESSORY
HAS
BEEN
DAMAGED
BY
ACCIDENT.
UNREASONABLE
USE.
NEGLECT.
IMPROPER
SERVICE
OR
OTHER
CAUSES
NOT
ARISING
OUT
OF
DEFECTS
IN
MATERIALS
OR
WORKMANSHIP.
WARRANTY
DISCLAIMERS
ANY
IMPLIED
WARRANTIES
ARISING
OUT
OF
THIS
SALE.
INCLUDING
BUT
NOT
LIMITED
TO
THE
IMPLIED
WARRANTIES
OF
MERCHANT-
ABILITY
AND
FIT!"ESS
FOR
A
PARTICULAR
PURPOSE.
ARE
LIMITED
IN
DURATION
TO
THE
ABOVE
THREE·MONTH
PERIOD.
TEXAS
INSTRUMENTS
SHALL
NOT
BE
LIABLE
FOR
LOSS
OF
USE
OF
THE
DISK
SYSTEM
OR
OTHER
INCIDENTAL
OR
CONSEQUENTIAL
COSTS.
EXPENSES.
OR
DAMAGES
INCURRED
BY
THE
CONSUMER
OR
ANY
OTHER
USER.
Some
state,s
do
not
allow
the
exclusion
or
limitation
of
implied
warranties
or
consequential
damages,
so
the
above
limitations
or
exclusions
may
not
apply
to
you.
LEGAL
REMEDIES
This
warranty
gives
you
specific
legal
rights.
and
you
may
also
have
other
rights
that
vary
from
state
to
state.
7

WARRANTY PERFORMANCE
During
the
above
three-month
warranty
period,
your
Disk Memory
Drive
will
be
repaired
or
replaced
with
a
new
or
reconditioned
unit
of
the
same
or
equivaient
model
[at
TI's
option)
when
the
unit
is
returned
by
prepaid
shipment
to a
Texas
Instruments
Service FacIlity listed
below.
The
repaired or
replacement
unit
will
be
warranted for three
months
from
date
of
repair
or
replacement.
Other
than
the
postage
requirement.
no
charge
wlll be
made
for
the
repair
or
replacement
of
in-
warranty units.
Texas
Instruments
strongly
recommends
that
you
insure
the
unit
for
value
prior to
shipment.
TEXAS
INSTRUMENTS
CONSUMER
SERVICE
FACILITY
U.S,
Residents
Texas
Instruments
Service
Facility
2303
North University
Lubbock,
Texas
79415
Canadian
Residents
Geophysical
Services
Incorporated
41
Shelley Road
Richmond Hill, Ontario, Canada
L4C5G4
Consumers
in
California
and
Oregon
may
contact
the
following
Texas
Instruments
offices for
additional
assistance
or
information,
Texas
Instruments Consumer Service
831
South
Douglas Street
El
Segundo,
California
90245
(2131973,1803
8
Texas Instruments Consumer Service
10700
Southwest
Beaverton
Highway
Park Plaza West
Beaverton. Oregon
97005
(503)
643-6758

PRINTED IN
U.S.A
,.
TEXAS
INSTRUMEN.T~
INCORPORATE~_
DALLAS. TEXA$ "
.'
.....
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