HP 9121D/S User manual
HP
9121
and 9122 DIS
Section I
..
Section II .
Section
III
.
Section IV .
Section V .
Section VI .
Section VII.
Section VIII
Section IX .
Section X .
Section XI .
Part
No. 5957-6566
For use
with
binder
No.
9282-0683
. . . . . . . Product
Information
.
Environmental/Installation/PM
· .Configuration
·Troubleshooting
. Diagnostics
· . .Adjustments
· . . Peripherals
·Replaceable
Parts
·
....
Diagrams
·
....
Reference
. Service Notes/IOSMs
Printed
in
USA
September. 1985
NOTICE
This Handbook
is
intended
only
for
service
personnel
trained
in
its
use
by
Hewlett-Packard.
It
is
designed
as
a
quick
reference
guide
to
commonly
used
service
information.
The
information
contained
here
is
highly
condensed from
other
manuals and
this
volume
is
not
intended
to
be
a
substitute,
but
rather
a supplement
to
those
manuals.
TABLE
OF
CONTENTS
Section I
PRODUCT
INFORMATION
Introduction.
[ 1]
[2]
[3]
[4]
Technical
Specifications
Accessories.
Service
Kits
.......
.
Section II
ENVIRONMENTAL/INSTALLATION/PM
[ 1]
[2]
[3]
EnVironmental
Considerations
Installation
Considerations.
Preventive
Maintenance
....
Section
III
CONFIGURATION
[1]
Address
Configuration
.....
.
Section IV
TROUBLESHOOTING
[ 1]
[2]
Troubleshooting
Tree
Disc
Interchanging
.
Section V
DIAGNOSTICS
Page
1-1
1
-1
1-1
1-2
2-1
2-1
2-1
.
....
3-1
4-1
4-2
[1]
Selftests
..............................
5-1
Section VI
ADJUSTMENTS
There
are
no
suggested
field
adjustments.
Section VII
PERIPHERALS
This
section
intentionally
left
blank.
Section VIII
REPLACEABLE
PARTS
[ 1]
[2]
Exchange
Assemblies.
Non-Exchange Assemblies
Section
IX
DIAGRAMS
This
section
intentionally
left
blank.
Section X
REFERENCE
For
information
on
the
drive
mechanism.
refer
to
the
tabbed
Reference
Section
of
this
handbook.
Section XI
Page
8-1
8-1
SERVICE
NOTES/IOSMs
. . . . . . . . . . . . . 11-1
HP
9121/22
DIS
SECTION
I
PRODUCT INFORMATION
[1]
INTRODUCTION
The
HP
9121D/S and
HP
9122D/S Disc
Drives
are
random
access
data
storage
devices.
The
HP
9121
uses
a
single-sided
3
1/2-inch
disc
drive:
the
HP
9122
uses
a
double-sided
drive.
5 and D
denote
single-drive
and
dual-drive
configurations,
respectively.
[2]
TECHNICAL
SPECIFICATIONS
POWER REQUIREMENTS
Voltage
(selected
by
rear
panel
sWitch)
Frequency
Power consumption
(max)
[3]
ACCESSORIES
DESCRIPTION
3
1/2-inch
flexible
discs
(pkg. of
ten):
Single-sided
Double-sided
HP-I6
cables:
1 metre
2 metres
4
metres
0.5
metres
86-125VAC
195-250VAC
48-66Hz
671,1
PART
NUMBER
92191A
92192A
10833A
108336
10833C
10833D
1-1
HP
9121/22
DIS
[4]
SERVICE KITS
PART
NUMBER
09121-69510
09121-69521
09121-68511
09121-61611
09121-61612
DESCRIPTION
Controller
Board
3
1/2
in
..
Single-sided
Drive
Fan
Assembly
Ribbon Cable assembly
DC
power
cable
Necessary
parts
to
be added
to
the
HP
9121
DIS
FSI
to
support
the
HP
9122
DIS:
09122-69501
09114-69511
Controller
Board
3
1/2-in
..
Double-sided
drive
1-2
HP
9121/22
D/S
SECTION
II
ENVIRONMENT
AL/INST
ALLA
TlON/PM
[1]
ENVIRONMENTAL CONSIDERATIONS
Operating
Limits
Temperature:
Altitude:
Non-operating
Limits
(Storage
and
Transit)
10·
C
to
40·
C(50·
F
to
104·
F)
with
maximum
wet bulb
temperature
not
to
exceed
29·
C(85·
F)
o
to
4572 m
(0
to
15,000
ft)
Temperature:
-40·C
to
60·C(-40·
to
140·
F)
Altitude:
-304
to
15240 m (-1000
to
50,000
ft)
[2]
INST
ALLATION CONSIDERATIONS
Installation
is
normally a customer
responsibility.
Refer
to
the
configuration
section
for
information
on
HP-IB
address
settings.
Fuse:
115
VAC
1A
250
VAC
normal blow 2110-0001
[3]
PREVENTIVE MAINTENANCE
No
preventive
maintenance
is
required.
2-1
HP
9121/22
D/S
SECTION III
CONFIGURATION
[1]
ADDRESS CONFIGURATION
Configuration
consists
of
setting
the
HP-IB
address
only.
Configure
the
unit
for
the
desired
address
as
shown
below. See
the
Self
test
section
for
information
on
self
test
selection.
9
12.1:
Up
for normal operation.
Up-Down-Up
for
Uoer
Confidence
Te.t
I~~~~I
~
• Test
9122: Switch
••
1,2,4
Hl.ct
HP-IB
addr_
Test
s"ltch
II
used
"hen
lelectln9 selftest.
(see
Dlo<,JnOltJc
sectIon.)
HP-IB
Address Switch
Configuration
3-1
HP
9121/22
DIS
SECTION IV
TROUBLESHOOTING
[1]
TROUBLESHOOTING TREE
The
HP
9121
and
HP
9122 have unique
self
test
procedures
as
described
in
the
Diagnostic
section.
The
HP-85
Amigo
protocol
diagnostics
will
work
with
the
HP
9121,
but
not
with
the
HP
9122.
The
Power-on
5elftest
can be used
to
isolate
the
control
PCA
or
the
drive
mechanism as
follows.
Power
on
without disc(s)
yes
Isolate
problem
with
&electable
test&
4-1
If
wles
are
OK:
replace
Controller
PCA
HP
9121/22
D/S
[2]
Disc Interchanging
It
is
possible
for
a
drive
to
pass
all
READ/WRITE
tests,
yet
fail
when
reading
a
disc
which has been
initialized
or
written
on
by
another
drive.
This
type
of
failure
can
be
caused
by
misalignment
of
the
drive
mechanism
or
of
the
PLL
frequency.
To
determine
which
drive
is
misaligned,
test
with
a
disc
that
has
been
initialized
and
written
on
by
a known-good
drive.
4-2
HP
9121/22
D/S
SECTION
V
DIAGNOSTICS
[1]
SELFTESTS
HP
912ID/S
POWER-ON
SELFTEST
Activated
when
power
is
applied:
Checks
RAM, ROM,
and
FDC
circuitry.
Test
pass
indications:
The
red
self-test
LED
(behind
the
grill,
near
the
power
switch)
blinks
on
5
times,
then
off.
If
a
test
fails,
the
LED
stays
on
for
5
seconds.
If
the
ROM
or
RAM
is
defective:
the
LED
will
never
come
on.
If
the
FDC
is
defective:
the
LED
comes
on
for
5
seconds,
then
off.
USER
CONFIDENCE
TEST
Activated
by
setting
the
"TEST"
switch
(far
left
segment of
the
HP-IB
address
switch)
to
the
downward, then upward
position
after
the
Power-on
Self-test
has
completed.
With
no
discs
inserted,
RAM, ROM,
HP-IB and
FDC
chips
are
tested.
If
a
disc
which
is
NOT
write-protected
is
inserted
into
a 9121S
or
into
BOTH
drives
of a
91210,
the
seek
track
0, motor
speed,
format,
and
verify
tests
are
performed.
Expected
indications:
The
complete
test
lasts
1 minute
for
the
91210,
30
seconds
for
the
9121S.
Drive
access
LED(s)
show
disc
activity,
the
self
test
LED
blinks
10
times,
then
goes
off.
If
any
test
fails,
Self
test
LED
comes
on
for
5
seconds,
then
off.
Always
return
the
TEST
switch
to
the
upward, normal
operating
position.
This
switch
is
used
for
the
User Confidence
test
only.
5-1
HP
9121/22
D/S
SERVICE
TEST
The
Service
test
is
selected
by
setting
the
HP-IB
address
switch
to
the
desired
test
address
as
shown
below.
Start
the
test
by
momentarily
shorting
the
SELFTEST
pins
on
the
Control
PCA.
Keeping
the
LOOP
pins
shorted
will
cause
the
9121
to
loop
on
the
selected
test.
The
TEST
segment of
the
HP-IB
switch
must remain in
the
up
position
(refer
to
the
illustration
on
page
3-1).
Address
Test
IIBlinks
for
pass
0
RAM
1
1
ROM
2
2 HP-IB 3
3
FOC
4
4
SEEK
TRK
0 5
5
MOTOR
SPEED
6
6
FORMAT
7
7
READ/VERIFY
8
The
Self
test
LED
goes
on
for
5 seconds
at
the
beginning
of
the
test.
If
the
test
passes,
the
LED
blinks
the
number of times
indicated,
then
off.
If
the
test
fails,
the
LED
goes
on
for
5 seconds, then of
f.
Remote Diagnostics
AMIGO
PROTOCOL
EXERCISER
Refer
to
the
Amigo
Exerciser
section
in
this
handbook.
5-2
HP
9121/22
D/S
HP
9122D/S
The
service
diagnostic
testing
function
allows
selection
and
looping
of any of
the
test
choices
in
the
following
table.
To
initiate
a
test,
perform
the
following.
1. Apply power
to
the
unit
and
allow
the
power-on
self
test
to
complete.
2.
Install
formatted,
unprotected
discs
if
tests
4
through
14
are
to
be
performed. (Note:
Scratch
discs
should
be
used,
as
some
tests
destroy
the
data
and format)
3.
Set
the
HP-IB
ADDRESS
switch
to
the
desired
test
number. See
test
descriptions
on
the
following
page.
4.
Short
the
TEST
jumper
pins J7,
with
the
jumper
to
start
the
test;
LEAVE
J7
SHORTED
TO
LOOP
ON
THE
SELECTED
TEST.
The
fault
LED
will
blink
once
at
the
beginning
of
the
test,
followed
by:
Test
pass
indication
Fault-LED
blinks
5
times
Test
fail
indication
Fault-LED
stays
on
Test
results
are
displayed
for
5 seconds followed
by
a complete
power-up sequence.
When
looping
on
a
test,
the
following
occurs:
1. A power-up sequence;
indicated
by
the
blinking
LED
2.
Test
execution;
indicated
as
follows
A.
If
the
test
passes;
the
LED
blinks
The
test
is
repeated
until
the
loop jumper
is
removed.
B.
If
the
test
fails;
the
LED
stays
on.
The
test
is
not
repeated.
5-3
HP
9121/22
DIS
NOTE
A
disc
must
be
in
the
drives
to
perform
test
6
through
14. Ensure
that
the
discs
are
not
write
protected
and
that
they
are
initialized
scratch
discs.
Available Test
Test
Time
o
RAM
2s
ROM
2s
2
HP-IB
chip
2s
3
FDC
chip
2s
4 Drive 0 Seek 3s
5 Drive
seek
3s
6 Motor 0 speed 3s
7 Motor 1 speed 3s
8
Write/verify
disc
0 80s
9
Write/verify
disc
80s
10
Verify
disc
0 35s
11
Verify
disc
40s
All
patterns
are
written
in
all
locations
of
RAM
A checksum
calculation
is
performed
Two
of
the
registers
are
written
and
their
content
verified.
Two
of
the
registers
are
written
and
their
content
verified.
Commands
are
given
to
the
FDC
to
move
the
head
on
and
off
of
track
O.
The
track
0
indicator
is
checked
to
see
that
movement
occurred.
Same
as above
but
on
drive
1.
The
head
is
stepped
to
track
35
and
loaded.
The
period
of
the
index
pulse
is
measured and compared
against
the
specification.
No
test
if
no
disc
in
drive.
Same
as above
but
on
drive
1.
Write
on
every
sector
of
the
disc
and
verify
the
data
written.
Same
as above
but
on
drive
1.
All
sectors
in
the
data
area
of
the
disc
are
checked
for
CRC
errors.
Same
as above
but
on
drive
1.
5-4
12
Format
disc
0
13
Format
disc
14
PLL
test
HP
9121/22
D/S
75s
The
disc
is
re-initialized
with
a
011
data
pattern.
75s
Same
as
above but
on
drive
1.
3s
The
free-running
frequency
of
the
PLL
is
checked.
The
disc
in
drive
0
is
used
for
the
test,
and
its
format
is
destroyed
by
the
testing
procedure.
5-
5
HP
9121/22
DIS
SECTION
VI
ADJUSTMENTS
The
electrical
and mechanical
adjustments
for
the
HP
9121
and 9122
products
are
not normally performed
in
the
field.
Refer
to
the
product's
service
manual
for
adjustment
information.
6-1
SECTION
VII
PERIPHERALS
This
section
intentionally
left
blank.
7-1
HP
9121/22
D/S
SECTION
VIII
REPLACEABLE
PARTS
[1]
EXCHANGE ASSEMBLIES
HP
9121D/S
Controller
PCA
HP
9122D/S
Controller
PCA
HP
9121/22 D/S
09121-69510
09122-69501
09121-69521
09114-69511 3
1/2-inch
Drive
(single-sided)
3
1/2-inch
Drive
(double-sided)
[2]
NON-EXCHANGE
ASSEMBLIES
2110-0012
211
0-000 1
09121-61611
09121-61612
Fuse 0.5A
250V
Fuse 1.0A
250V
Ribbon Cable
DC
Power
Cable
8-1
SECTION IX
DIAGRAMS
This section intentionally
left
blank.
9-1
HP
9121/22
D/S
SECTION
X
REFERENCE
HP
9121/22
DIS
For
information
on the drive mechanism,
refer
to
the tabbed Reference section
of this handbook.
10-1
Other manuals for 9121D/S
1
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1
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