
KAYPRO
TECHNICAL MANUAL
DECEMBER
1984
Part
Number
1484-D

PAGE
1.0
2.0
3.0
4.0
5.0
6.0
1.1
1.2
3.1
3.2
3.3
3.4
3.5
3.6
3.7
5.1
5.2
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Introduction
Purp::lse
Scope
FCC
Infonnation
M::x1el
KAYPRO
KAYPRO
KAYPR04
KAYPRO
KAYPRO
KAYPRO
KAYPRO
RCM
Revisions
O1assis
Raroval/Replacement
'Ibuch-up
Mainboards-Troub1eshooting
KAYPRO2(81-110-n)
KAYPRO
KAYPRO10(81-180-n)
KAYPRO
KAYPRO
KAYPRO
Rarova1/Installation
of
Technical
of
Technical
Specifications
2
2/84
and
4/84
4X
10
ROBIE
-
Infonnation
2/4
(81-240-n)
2/84
4/84
ROBIE
and
(81-184)
(81-296-n)
Manual
2X
CP/M
of
2X
(81-294-n)
Manual
canpatibi1ity
!bod
Instructions
(Exc.
Tips
ROBIE)
1-1
1-2
2-1
3-1
3-2
3-3
3--4
3-5
3-6
3-7
4-1
5-1
5-2
6-1
6-2
6-8
6-16
6-26
6-35
6-44
6-53
7.0
8.0
7.1
7.2
7.3
7.4
7.5
8.1
8.2
8.3
CRI'
Assemblies
Descriptions
Video
Video
ALIGN.MAC Diagrx:>stic
Raroval/lnsta11ation
Power
Introduction
Description
Raroval/lnstal1ation
Alignment
Signals
SUW1ies
and
on
and
Adjustments
KAYPRO
220V
Mainboard
Listing
Instructions
Configuration
Instructions
7-1
7-3
7-4
7-5
7-8
8-1
8-2
8-5

~m
<Dll'ftll'S
(<:mtinued)
9.0
9.1
9.2
9.3
9.4
9.5
10.0
10.1
10.2
10.3
10.4
11.0
11.1
11.2
12.0
12.1
12.2
13.0
Diskette
Drives
Introduction/Disk
Which
Jumpering
Brand
of
Diagrams
High-Density
Removal/Installation
Hard
Disk
Drives
Introduction
Description
Hard
Hard
Drive
Drive
Configuration
or
Installation
Hard
Drive
Controller
Description
Removal/Installation
Interface
Board
Description
Removal/Installation
Keyboards
Drive
Drive
Is
(Drivetec)
Instructions
(KAYPRO
FloR'}"
Drive
Instructions
Board
Instructions
(KAYPRO
Instructions
Cleaning
It?
Drives
10)
10)
Rsroval/
(KAYPRO
(KAYPRO
10)
10)
9-1
9-2
9-5
9-9
9-10
10-1
10-2
10-3
10--4
11-1
11-2
12-1
12-2
13-1
14.0
14.1
14.2
15.0
15.1
15.2
15.3
15.4
15.5
15.6
ROBIE
Removal/Installation
Chassis
Diskette
Covers
Drives
Troubleshooting
Introduction
KAYPRO
2
and
4
Symptan-Fix
KAYPRO10Symptan-Fix
ROBIE
KAYPRO
KAYPRO
Symptan-Fix
2/84
and
4/84
and
Guide
Guide
2X
Sympt.cm--Fix
4X
Symptan-Fix
Instructions
Guides
Guide
Guide
14-1
14-2
15-1
15-2
15-8
15-15
15-21
15-22

~<E
<XIftmill'S
(cmtinued)
16.0
16.1
16.2
16.3
16.4
17.0
17.1
17.2
17.3
18.0
19.0
19.1
19.2
19.23
19.24
19.25
19.26
19.3
19.33
19.4
19.43
19.5
19.53
19.6
19.63
19.7
19.8
19.81
19.84
19.86
19.92
19.93
19.94
19.95
System
Video
Keyboard Codes
I/O
Catmand
Connector
Port
Addresses
Reference
ASCII
Mercory Maps
Vendor
Suggested
KAYPRO
Section
Chart
Addresses
References
16
O1assis
System
Boards
Board Assembly
card
Mainboard
Disk
CRI' Assembly
CRI'
Power SU£:ply
Power
Rem:>val
Controller
Rem:>val
Supply
Diskette
Diskette
Hard
Hard
Disk
Disk
Keyboard
System
I/O
Parallel
Serial
~em
I/O
Mercory Map
Switch
Mercory
Printer
Cable
Port
settings
Expansion
Protocol
arrl
Pin-outs
Rem:>val
Rem:>val
Board
Rem:>val
Drives
Drive
Ratoval
Drive
Drive
Raroval
Printer
Cable
Addresses
FUnctions
Ratoval
Cable
16-1
16-2
16-3
16-10
17-1
17-2
17-6
18-1
19-3
19-4
19-16
19-18
19-21
19-22
19-23
19-24
19-26
19-29
19--31
19-32
19-37
19--38
19-41
19-42
19--42
19-44
19-45
19-48
19-49
19-50
19-52

1.1
PURl?<:SE
'!his
publication
trained
sections
subject.
'The
procedures
expertise
any
servicing
It
is
our
expedite
encourage
rePair
of
on
desire
rePairs
your
<F 'IK.HfiCAL
is
intended
technicians.
Kaypro
the
and
part
unless
to
am
computers.
infurmation
of
you
provide
provide
comments
MANUAL
the
are
dealers
am
suggestions
to
be
It
will
'!his
contained
reader.
a
qualified
the
users
a
technical
attempt
manual
'Ib
with
with
to
replaces
in
this
avoid
service
the
infurmation
the
regarding
re
ference
COller
previous
manual
personal
technician.
service
this
guide
all
dealer-serviceable
to
manuals
assume
injury,
and
they
technical
do
stlJ?fX)rt
deserve.
manual.
be
not
used
on
the
perfurm
needed
We
by
to
1-1

1.2
'!he
kn<:Mledge
'!he
only.
supplies,
SCCPE
infbrmation
on
policy
Even
CRI'
manufactured
drives)
are
<F 'lHR\IICAL Ml\NUAL
and
procedures
the
part
0 f Kaypro
Kaypro's
assemblies,
by
Kaypro
Nor
covered
of
the
Corporation
repair
technicians
or
Corporation
by
this
covered
reader.
is
disk
manual.
to
drives.
(power
by
this
repair
do
manual
computers
not
rePair
Repairs
supplies,
assume
switching
to
modular
CRI'
some
to
the
modular
power
comPonents
assemblies,
technical
'\
level
not
disk
Ibwever,
and
the
warranty
'!he
adjustment
by
module
KAYFRO
chassis
we
tcx:::>ls
Kaypro
type,
RCBIE,
design
do
rot
to
computers.
and
with
which
and
discourage
repair
to
dealers
the
component
rerroval/replacement
the
exception
is
placed
hardware
in
module
and
technicians
level
infbrmation
of
removal/replacement
a
seParate
section
placement
in
from
that
who
doing
in
this
due
to
machine.
have
so,
the
on
out~f
manual
infbrrnation
the
di
fferences
knowledge
is
organized
:fOr
the
in
\
1-2

5.e
->
IWUiARE
CCLOOED TAB HERE: HARIWARE
M<DRES

2."
F<X::
As
Kaypro
which
affect
romputer.
infunnation
INFCIMATI<N
keeps
Contact
FCC
in
ratings.
the
•
step
with
The
Kaypro
romputer
proPer
Engineering
technology,
rating
is
Department
the
affixed
models
to
if
you
the
need
have
back
changes
of
further
each
\
2-1

3.8
H<IEL SPECll'ICATIQ1S
3.1
KAYPRO
2 SPOCll'ICATIOlS
CPU
RAM
MAINBCARD
DISK
STORAGE
KEYBCARD
VIDEO SCREEN
I/O
CCNNECl'ICNS
Z-80
64K
2.5
bytes
81-110-n
Two
5-1/4
sided,
19lK
floppy
bytes
Detachable,
keyboard
Non-glare,
screen
with
display.
(he
"Centronics"-type
port,
one
MHz
or
81-240-n
indh,
of
72
with
9-indh,
a 25
RS-232C
series.
double-density,
disk
storage
18
drives,
per
key
typewriter
progranmable
green
rowx80
parallel
serial
single-
providing
diskette.
style
keys.
Phosphor
column
port.
3-1

3.2
KAYPRO
2/84
aId
2X
SPFCIEilCATI~
CPU
RAM
DISK
DISK
KEYBQt\RD
VIDEO SCREEN
I/O
STORAGE
(Kaypro
STORAGE
(Kaypro
C<::NNECI'ICNS
2/84)
2X)
Z80-A 4.0
64K
bytes
81-294-n
Two
5-1/4
sided,
191K
Two
sided,
3901<
floppy
bytes
5-1/4
floppy
bytes
Detachable,
keyboard
Non-glare,
screen
with
display.
Che
"Centronics"-type
t'WO
RS-
232C
MHz
series.
inch
of
inch
0 f
72
with
9-inch,
a 25
serial
double-density,
disk
drives,
storage
per
double-density,
disk
drives,
storage
key
18
programnable
per
typewriter
green
rowx80
parallel
ports.
single-
providing
diskette.
double-
providing
diskette.
style
keys.
phosIilor
column
port,
3-2

3.3
KAYP{«) 4 SPFX:.lFlCATIQIS
CPU
RAM
DISK
VIDEO SCREEN
I/O
STORAGE
Cc:NNECI'ICNS
Z-80
64K
2.5
bytes
81-240-n
Two
5-1/4
sided,
3901<
floppy
bytes
Detachable,
keyboard
with
Non-glare,
screen
with
display.
Cb.e
"Centronics"-type
one
RS-232C
MHz
series.
inch
0 f
72
9-inch,
a 25
serial
double-densi
disk
drives,
storage
key
typewriter
18
programnable
green
rowx80
port.
providing
Per
diskette.
PhosPhor
column
Parallel
ty,
double-
style
keys.
port,
3-3

3.4
KAYPRO
4/84
SPJ£IFlCATICNS
CPU
RAM
DISK
STORAGE
KEYBmRD
VIDEO SCREEN
I/O
C~ICNS
MmEM
Z-80A
64K
8l-l84-n
Two
floH¥di~~ives,
bytes
Detachable,
keyOOa.rd
Non-glare,
screen
4.0
MHz
bytes
series.
double-densi
0 f
storage
72
with
9-inch
with
a 25
ty,
per
key
18
progranmable
rowx80
display.
(he
"Centronics"-type
two
RS-232C
rrcdular
Built-m,
System
103
Instruments
serial
telephone
300-0000
crnpatibility.
TMS99531/TMS99532.
double-sided,
provMmg
diskette.
typewriter
green
phosphor
parallel
ports,
jack.
rrcdem,
39~
style
keys.
column
one
RJllC
with
Uses
port,
Bell
Texas
REAL-TIME
CLOCK
Built-m
r-M58167.
real-time
clock.
Uses
National
3-4

3.5
KAYPRO
4X SPJ£IFICATIQ1S
CPU
MAINBCARD
DISK srOOAGE
KEYBCARD
VIDEO
I/O
MffiEM
SCREEN
C~ICNS
Z-80A
641<
4.0
bytes
81-296-n
Two
5-1/4
sided,
2.6M
floppy
bytes
Detachable,
keyboard
Non-glare,
screen
with
display.
(be
"Centronics"-type
port,
RJIIC
two
rrodular
Built-in,
System
103
Instruments
MHz
series.
inch,
with
disk
of
storage
72
key
18
9-inch,
a
25
high-density,
drives
per
typewriter
programna.ble
green
rowx80
parallel
RS-232C
serial
telephone
300-0000
modem,
compatibility.
TMS99531/TMS99532.
providing
diskette.
phosrnor
coltnnn
ports,
jack.
with
Uses
double-
style
keys.
one
Bell
Texas
~TIME
CLOCK
Built-in
r.M58167.
real-time
clock.
Uses
National
3-5

3.6
IQ\YPRO
19
SPJ£IFICATIQIS
CPU
RAM
DISK
VIDEO SCREEN
I/O
STORAGE
CCNNECI'ICNS
Z80A,
64K
81-18l2J-n
(he
sided,
39l2JK
(he
bytes
4.0
bytes
5-1/4
bytes
hard
0 f
MHz
series.
inch
:fl.oFPY
disk
storage.
Detachable,
keyboard
with
Non-glare,
with
a 25
(he
"Centronics"-type
t.v.Q RS-232C·
rowx80
double-density,
disk
of
storage
drive
72
key
18
progranmable
9-inch,
serial
drive
providing
per
providing
typewriter
green
colurm
Phosphor
display.
parallel
ports.
double-
diskette.
10M
style
keys.
screen
port,
3-6

3.7
KAYPRO
RCBIE
SPEClFlCATI<NS
CPU
RAM
DISK
KEYBCNID
VIDEO SCREEN
I/O
MCDEM
STCRAGE
CCNNECTICNS
Z80A, 4.0
64K
bytes
81-296-n
Two
5-1/4
sided,
2.6M
flowy
bytes
Detachable,
keyboard
Non-glare,
with
two
m:xiular
a 25
(he
"Centronics"type
RS232C
telephone
Built-in,
System
103
Instruments
MHz
series.
inch,
of
with
reM
disk
storage
72
key
18
9-inch,
x
high-density,
drives
per
typewriter
progranmable
green
80
column
parallel
serial
ports,
jack.
300-baud
modem,
compatibility.
TMS9953l/TMS99532.
double-
providing
diskette.
style
keys.
phosphor
display.
port,
one
RJllC
with
Bell
Uses
screen
Texas
REAL-TIME
CLCCK
Built-in
~8167.
real-time
clock.
Uses
National
-----,
3-7

4.f2J
I<AYPRO
RCM
REVISICN-CP!M
CP/M VERSI<N
VERSI<N CCMPM'IBn..rIY
KAYP.RO
( :fOr CP/M
PARr J
disk)
RCM
VERSI<N
2/83
4/83
4/83
2/84
4/84
4/84
2 X
+ 88
+ 88
2.2F
2.2F
2.2F
0777
1475
1475
2.2G 2619
2.2G 2622
2.2G 2622
2.2G
2470
81-149-C
81-232-A
81-232-A
81-292-A
81-292-A
81-292-A
81-292-A
or
81-232-A
4X
RCBlE
2.2G 2340
2.2G 2340
4-1
81-326-E
81-326-E

-->
CCLORED
TAB:
TRClJBLESHoorING

5.0
5.1
1.
2.
aJASSIS
aJASSIS
Turn
0
ff
Disconnect
H<XD
the
AC
ImDlAL
machine.
power
(EX.CEPT
by
unplugging
KAYPRO
the
RffiIE)
power
cord
from
wall
outlet.
3. Remove
and
4.
Renove
aJASSIS
1.
lDwer
2.
Align
chassis.
3.
Insert
chassis
4.
Insert
them.
5.
Tighten
fuur
the
the
the
the
the
the
H<XD
and
each
ten
on
haJd
hood
two
two
eight
screws
each
~
onto
holes
flat-head
start
screw
from
side.
fran
the
the
on
top
them,
round-head
securely.
the
chassis.
unit.
0 f
screws
but
do
screws,
chassis
the
into
rot
hood
the
tighten
fuur
haJdi
with
holes
on
there
those
them
each
on
the
yet.
side,
are
on
top
top
two
and
0 f
of
on
the
the
start
top
5-1

5.2
TaXH-UP:J:NF(H4AT1<N
Kaypro Corp::>ration
chassis
personnel
O=casionally
A
small
out
there
000.
very
are
'Ihese
available
to
obtain
a
amo\IDt
small
two
sizes
brushes
customer's
of
scratches
has
to
the
this
rubbing
of
are
small
dealers.
paint.
computer
com];X)und,
onahcx:x1
sable
available
amO\IDts 0 f
Contact
will
when
or
chassis.
paintbrushes
at
any
touch-up
the
have
scratches
carefully
to
have
art
supply
paint
Hardware
applied,
Should
on
hand:
store.
fur
Kaypro
Technical
on
the
will
painting
size
hcx:x1
often
be
00
hcx:x1s
and
Support
or
chassis.
smooth
necessary,
and
size
5-2

The
fOllowing
(by
U-number)
operation,
but
sections
fOr
Kaypro
rather
;
contain
mainboards.
an
aid
schematics,
to
locating
This
chip
is
not
possible
layout
intended
problems
diagrams,
to
on
and
IC
be
a
theory
a .mai.nl::x>ard.
,.
lists
of
Consult
internal
MAINBQl\RD .TRaJBLEsHoorING
A
blank
81-110, 81-240,
allows
address
technician
If
the
and
an
appropriate
v.orkings
EPRCM
a
quick
lines
to
video
apostrophes,
can
and
check
to
toggle
use
display
you
databJok
of
a
particular
be
used
81-180.
of
at
a
scope
does
haveaproblem
circuitry.
You
can
looking
signals
check
at
like
For
pin
th~
U20
U21
the
14
this:
81-240
(D7)
(06)
main
on
1:x:lard:
RAM
each
U22 (D5)
U23 (D4)
U24 (D3)
U25
(D2)
(Dl)
U26
U27
(00)
TIPS:
to
help
The
appropriate
the
1:x:lard.
approximately
to
spot
not
showascreen
and
associated
of
the
ION
ION
toggle
toggle
toggle
ION
ION
toggle
(TrL,
Zilog,
IC.
troubleshoot
It
will
affected
in
the
RAM
chips.
model
usually
the
same
lines.
filled
video
circuitry
There
etc.)
Kaypro
if
you
mainlx:>ards
of
EPRCM
fOrce
amplitude,
with
RAM
or
quickly
should
need
to
(2732,
the
data
allowing
alternating
associated
with
be
a
pattern
find
of
2716,
and
a
series
the
"9'''s
scope
of
out
the
etc)
by
The
you
U-numbers
have,
but
0 f
the
the
pattern
main
RAM
will
chips
be
6-1
the
will
vary
same.
depending
on
which
mai.nl::x>ard

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U44
U45
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I<AYPRO
2
(81-1l.0-n)
Description
------
Ul
U2,U67*
U3
U4
U6,
Ull
U9,
U80
U10,
U12, U14,
UlS,
U16
U20
U28
U33,
U3S,
U61
U39
through
through
through
U34
U38
U32
U19
U27
U3l
U36
U37, U56,
U8S
U4l
U42
U43
U44, U45, U64,
U47
U48,
U49,
US4,
US7,
U73
US2,
U72
US8,
U62
U60
US9
U63
U66
U68
U69
U70
U7l
U78
U8l
U82
U84
U86
U87
U88
U65
74Ls161
74HCU04
74IS290
74lSl0
74lS393
74lS08
73IS32
74lS74
74lS00
74lS157
r-D16665
2114
74157
8216
74IS20
74lS02
748151
74IS174
81-146
74IS243
81-149
74lS04
74IS241
Z80
PIO
74IS138
74IS373
Z80
CPU
74164
1488
1489
Z80
SIO
74804
8116
7406
FD1793
74lSl95
74IS293
74lS390
FDC9216
4-bitcounter
Hex
inverter,
decade
Tri
Dual
Quad
Quad
Dual
Quad
Quad
(or
lKx4RAM
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Quad
Dual
Quad
8/1
Hex "D"
Character
Quad
Bcx.>t
Hex
O:::tal
3/8
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8-bitshi
Quad
Quad SCHMIT!'
Hex
Dual
generator
Hex
Flowy
4-bit
4-bitbinary
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I::ata
counter
NAND
equivalent)
MUX
inverter
MUX
inverter
inverter,
gates
binary
AND
gates
CR
Gates
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flip-flop
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2/1
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NCR
bus
EPRCM
line
programnable
decade
seParator
2/1
bu
"D"
disk
shift.
Gates
MUX
MUX
gates
gates
flip-flop
generator
trans
ffer
latch
ft.
driver
CMCS
counter
64K x 1
register
(cur)
line
controller
register
counter
counter
receiver
baud
OPen
RAM
MUX
EPRCM
(IN)
rate
collector
*NOI'E:
THERE
Nor
CMCS
BE
SURE.
ARE
SCME
IC.S
VERSICNS
BUI'
ARE
CF
THE
81-1l0
NffiMAL TI'L ICS.
6--3
B<J.\RD
READ
CN
WHICH
THE
Nt.Jrv4.BERCNTHE
U2
AND
U67
IC
ARE
TO

&nPE
The
signals
SIGNALS
examples
onaKaypro
toggles.
illustrations
Note
that
A
group
only
'ID
of
of
AID
correct
of
the
~
IN
~
signals
mainboard,
video
timing
of
the
I/O
shown
since
signals
(~0
relationships
signals
(81-1UJ-n)
below
most
through
on
U5?
do
signals
between
will
rnt
will
~3)
represent
be
are
the
various
be
low
all
simple
included
video
at
any
of
the
high-low
as
signals.
given
time.
State
of
the
boot.
The
signal
It
hasabandwidth
measurements
microseconds
Signal
in
shown
the
Each
the
on
display.
square
Ml
top
channel
from
half
graticule.
micro-secs/div.
micro-secs/div.
Figure
Figure
Figure
Figure
1:
2:
3:
4:
Pin6of
Pin
pin
pin4of
machine:
to
1
pin
of
2
of
the
The
scope
for
24
3
of
The
d<X>r
were
of
OC-60
second,
27
each
was
andagraticule
of
the
display
established
representation
was
set
all
figures
U63, 2.5MHz
of
U82, lMHz
U6,
~0.
U6,
~l.
made
MHz,
CRT
of
drive
using
sensitivity
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and
at
is
for
?V/div.
EXCEPT'
clock
clock
was
was
first
the
figure
signal.
signal.
A
is
open:
a
Tektronix
of
display
triggered
channelL
graticule
equivalent
for
all
6,
the
machine
oscilloscope,
2mV/em, a
measuring
on.
Ground
line
of
one
figures,
which
was
sweep
8 x
This
for
above
square
an1
taken
is
delay
10
signal
the
the
em
was
using
waiting
model
of
em.
is
signals
bottom
on
set
for
1
to
2213.
0.1
shown
of
the
.5
Figure
Figure
5:
6:
Pin5of
pin6of
U6,
U6,
~2.
~3.
6-4

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U2,U67
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U20
U28
U61
Ul4,
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U42
U43
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U63
U66
U68
U69
U70
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U81
U82
U84
U86
U87
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2114
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81-232-n
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M:1488
M:1489
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810
74804
8116
7406
1793
74I.S195
74I.S293
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Description
4-bit
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line
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binary
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counter
OPen
641<
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receiver
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rate
(IN)
6-9

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onaKaypro
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illustrations
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group
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mainboard,·
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signals
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most
on
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signals
through
between
U57
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will
CC3)
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be
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all
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included
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microseconds
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measurements
Ml
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top
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on
channel
to
of
The
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micro-secs/div.
Figure
Figure
Figure
Figure
1:
Pin6of
pin
2:
pin3of
3:
Pin4of
4:
24
U 47.
of
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pin
27
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2
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scope
for
all
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with
a
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were
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of
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established
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set
figures
2.5MHz
lMHz
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CCl.
blank,
door
made
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CPU
for
EXCEPT
clock
clock
2732,
of
drive
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sensitivity
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and
was
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first
is
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signal.
EPROM
A
a
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display
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graticule
equivalent
for
figure
inserted
is
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of
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1.
all
6,
which
the
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on.
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line
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one
figures,
was
in
place
machine
sweep
8 x
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for
signal
the
above
square
arrl
was
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of
is
delay
10
the
em
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normal
waiting
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em.
is
signals
bottom
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set
for
1
2213.
0.1
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5:
Pin6of
6:
U6, CC2.
CC3.
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U73
U74
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U42
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U64, U67
74874
74808
74804
1489
74I.S244
74I.S74
74I.S08
74I.SOO
74I.S393
74I.S373
74I.S138
7406
74886
74820
8116
1488
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74I.S02
74I.S14
6116
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74I.S245
81-302-e
74I.S32
74I.S157
4565N-15
74I.S163
14-2-392
74I.S04
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74I.S93
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1793
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6-17

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The
on
A
SI<N\LS
examples
the
group
81-180-n
0 f
illustrate
The
signal
It
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microseconds
Pm
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correct
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81-180-0
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the
a
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display
not
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are
video
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all
0 f
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shown
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delay
8 x
10
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to
model
an.
signals
toggles.
2213.
of
0.1
Each
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graticule.
figures
Signal
in
the
on
channel
the
display.
State
0 f
Figure
Figure
Figure
Figure
Figure
Figure
except
Ml
top
the
1:
2:
Pin
3:
4:
5:
6:
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'Ihe
scope
figure
from
pin
hal
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2
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machine:
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24
12
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Pin9of
Pin8of
Pin
11
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27
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U66,
of
4MHz
U74,
U66,
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clock
clock
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signal.
divider.
divider.
divider.
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equivalent
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at
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channell.
graticule
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one
on.
Ground
line
on
square
'Ihis
fur
above
the
signal
signals
the
hard
em.
fur
1:x>ttom
drive.
all
on
is
shown
the
shown
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6.7
1.
2.
3.
4.
5.
6.
7.
Ml\INB<l\RD
Turn
off
Renove
Remove
the
the
mainboard
Remove
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mainboard.
and
two
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Phillips-head
Remove
these
J7,
Remove
the
the
are
and
J10.
the
KAYPRO10they
J8.
Rarove
the
REMOlAL
the
rrachine
chassis
two
and
the
screws
The
screws
fX)wer,
Jl,
J5,
riblx>n
rrainboard.
hcx:x1
screws
two
from
KAYPRO
screws.
reset,
and
cable(s).
are
and
from
plastic
the
2/83
and
J7.
J8
disconnect
(5.1).
the
rear,
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'Ihe
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fOur
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and
video
Q1
the
Q1
and
J9.
the
front
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top
4/83
each
10,
plugs.
KAYPRO
the
KAYPRO
en
of
of
screws.
the
AC
pcJ#er
the
the
have
2/84
Q1
10,
2/83
KAYPRO
(5.1).
maintoard
chassis
fOur
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the
KAYPRO
2/84
and
and
2/84
that
that
attach
secure
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each
have
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4/84
these
4/83
this
and
4/84
and
is
this
the
the
screws
three
4/83
are
J6.
Jl,
en
is
1.
2.
3.
4.
5.
6.
7.
Set
the
do
not
Align
of
the
Insert
tighten
'!he
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screws.
:fOur
Tighten
the
plastic
Replace
Replace
mainboard
tighten
the
fX)rts
chassis.
the
yet.
The
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the
the
the
them
screws
2/83
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screws.
screws
standoffs.
power,
riblx>n
on
and
through
and
the
yet.
the
keyboard
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10,
2/84
on
the
reset,
cable(s).
plastic
rear
each
rear
and
of
have
and
0 f
video
standoffs,
jack
with
chassis
fOur
4/84
each
the
chassis
plugs.
insert
the
openings
into
motmting
Phillips-head
have
three
and
the
screws,
and
Phillips-head
the
screws
on
holes.
two
the
hex-head
that
but
rear,
D:>
go
top
not
and
into
6--53

7.1
HARIH\RE
~<NS
1\ND
ADJUS'IMENl'S
I
I
Focus
Figure
Dotronix
V.
H.Width
H.
Hold
Figure
Elston
7.1
Hold
7.2
video
video
board
-
Shrink
board
-
VWidth
Vert.
At
the
current
assemblies
Toshiba.
di
fferent
located
These
need
ad
justments
centering,
Use
adjustments.
Before
board,
This
adjustment.
HOUZCNrAL CENTERING
Check
the
until
the
centering
by
pots
no
adjustment.
only
any
the
will
to
screen.
the
Elston
The
non-metallic
see
display
pot.
time
produced
adjustment
locations
using
are
factory
is
to
and
brightness
adjustments
ALIGN
fill
ACijust
video
diagnostic
the
that
board,
obtain
the
is
Kaypro
by
Dotronix,
pots
on
the
figures
aligned
'The pllrjX)se
the
tools
are
screen
pattern
the
horizontal
correctly
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is
toards
7-1,
of
when
made
should
with
using
are
positioned
7-2,
and
of
correct
the
display.
making
on
H's
is
centered
centered.
the
eRr
Elston,
and
can
and
norma11y
these
size,
the
video
be
invoked.
and
aid
hold
pot
video
and
in
be
7-3.
these
in
on
en
o
Width
Video
Centering
-
Vert.
Focus
-
Bright
-
Size
--
V.
Hold
-
V Lin
VERI'ICAL
The
..fOllowing
pernormed
obtained.
Adjust
height
ACijust
characters
rottc::m.
HOUZCNrAL WIIJl'H
ACijust
display
7-1
SIZE
AND
two
alternately
the
vertical
of
approximately
vertical
are
the
horizontal
width
of
LINEARITY
procedures
until
size
linearity
the
same
width
approximately
correct
pot
4-7/8
pot
vertical
pot
are
to
obtain
inches.
until
7
to
size,
to
obtain
inches.
be
display
pattern
all
top
is
to
a

HauZ<NrAL
4/83
with
H<ID
Ultrcnix
(KAYPRO
cnly)
2/83
and
Figure
Toshiba
-
Focus
HWidth
Figure
Yoke
Locking
-
alignrrent
Clamp
7.3
video
Bnght
7.4
H.
l:xxrrd
Hold
Vert.
I
V
V.
Hold
Size I
Lin I
Oamp
I
Screw
'Ihese
horizontal
Attach
PJint
to
Adjust
display
(sometimes
carpletely)
Disconnect
Adjust
needed.
Adjust
of
To
brightness
I f
brightness
visible,
until
ALIGnNG
procedures
2).
the
the
the
display
prolong
the
brightness
they
one
heat
R43
either
the
the
CRT
should
hold.
end
of
Attach
sink
(horizontal
they
the
horizontal
frJcus
the
obtainable
pot.
disappear.
at
stops
don't
test
pot
image
life
I f
brightness
Ya<E
a
test
the
03.
jumper.
until
of
is
excessive,
the
be
jumper
other
hold
scrolling
stop
deflection
are
in
the
CRI',
should
raster
pot
per
furmed
to
end
of
pot)
or
scrolling
the
edges
:fOcus.
the
not
adjust
lines
should
TP2
the
until
almost
rings
and
maximum
be
excessive.
are
be
to
ad
(test
jumper
the
stops.
as
center
the
adjusted
just
Deflection
Rings
Plastic Collar
***
HIGH
VOLTAGEISPRESENr
Lcosen
7-4)
Grasp
Turn
square
Turn
p:>int,
released.
Tighten
7-2
.
the
the
the
the
the
as
screw
white
collar
display.
collar
it
the
CAtJrICN
collar
in
slightly
will
locking
on
turn
the
the
screN.
***
AT
THIS POINT
locking
on
the
direction
past
back
slightly
clamp
rear
the
(figure
of
the
required'
alignment
when
coil.
to

VIIEO
AIlJllS'lMENl'S FOR
MIrnEX
CRl'
Figure
Micrex
,mar
7.5
video
<D
@~~.::;:.,
board
<D
The same
the
Micrex
other
brands
procedures
CRT
assembly
of
CRTs.
should
as
be
those
used
to
used
adjust
for
the
<D~~
7--2.1

7.2
PERE'EC!'
VIDEO
ALI~
EXAMPIE
-
Below
along
plastic
is
the
an
rorders.
to
example
use
asatemplate
fL.-.
__
of
You
25mm
per:feet
can
copy
over
video
this
the
alignment
diagram
screen.
..
with
onto
a
a
capital
piece
of
E
positioned
clear,
stiff
..
I~
Perfect Video Alignment
..
...
E
.~
7-3

7.3
VIIEO
SIQiALS,
CN
KAYPRO
MIUNBCNID
Below
voltages
board
Mal
functions
Video
'IV
A
then
comes
signal.
simple
turn
board,
video
signals
pin
pin
Pin
pin
Vo1tages
Pin
Pin
pin
Pin
Pin
Pin
is
a
list
on
the
cormector
from
check
the
you
should
1 -
fbrizontal
2 - Key
3 -
Video
4 -
Vertical
Q'l
Video
1
->
6
->
7
->
8
->
9
->
10
->
due
rear
Q'l
of
video
will
to
the
fur
nain
Board
0v'
0v
l2v
0v
4v
0v
the
board.
loosen
a
loose
main
l2V
panel
be
able
board
Sync.
approx.
video
cormector
board
on
the
brightness
to
at
Sync.
(this
signals
Repeated
the
cormection
as
video
see
Jl
voltage
separate
board
control
the
on
cormector
removal
can
raster
and
be
very
signals,
is
to
down.
lines
controls
Jl
and
installation
produce
di
turn
If
on
brightness)
of
the
poor
fficul
t
not
asacomposite
the
BRIGHINFSS
l2V
is
the
screen.
mainboard
of
the
contact.
to
trace.
present
pot
on
and
video
like
up,
the
the
a
7-4

I f
you
can
then
have
be
L-80.
typed
the
into
assembly
the
KAYPRO,
language
then
utilities
turned
into
M-80
a
and
CCM
L-80,
file
this
by
*******************************************************************
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7-7

7.5
1.
2.
3.
4.
5.
6.
7.
8.
CRI'
ASSIM:ILY
Tum
0
Rem::>ve
Rarove
Remove
chassis.
from
inside
Rem::>ve
Remove
machine
Rarove
Remove
the
new CRI'
ff
the
the
the
the
This
the
the
chassis.
the
the
RI!M07AL,
machine
chassis
maintoard
fuur
screws
should
the
machine.
video
fuur
CRI'
fuur
connector
screws
assembly
plastic
PCB.
and
hcxJd
(6.7)•
be
(EXCEPI'
disconnect
(5.1).
that
done
from
that
connect
fran
stando
RCBIE)
connect
from
the
the
chassis.
ffs
the
reck
the
from
the
the
outside,
AC
video
0 f
CRI'
the
po.Ner
PCB
1:x>ttom
the
to
CRI'
video
the
PCB.
(5.1).
and
frent
the
of
PCB.
These
1:x>ttom
the
0 f
the
can
of
chassis,
be
the
used
not
on
***
Note:
plastic
not
1.
Lower
2.
Position
metal
3.
Insert
standoffs,
4.
Insert
the
5.
IbId
on
6.
Align
the
7.
Insert
8.
Replace
Befure
standoffs
attached,
the
standoffs
screws
screws
standoffs.
the
the
cord
the
chassis.
the
the
CRI'
the
but
CRl'
plastic
:fOur
video
starting
use
assembly
CRl'
on
through
do
through
Tighten
PCB
wraps.
screws
with
are
attached
the
ones
so
that
the
the
not
tighten.
the
in
place
standoffs
connector
CRl'
from
into
the
chassis.
top
1:x>ttom
these
and
and
tighten
installation,
to
the
the
chassis.
top
mounting
two
two
tilt
on
the
on
the
the
bottom
old
mounting
two
mounting
screws
the
PCB
securely.
back
1:x>ard.
holes
holes
and
machine
with
of
the
the
check
of
are
holes
the
up
holes
video
the
on
top
so
to
see
CRr PCB.
aligned
the
on
the
two
that
in
PCB.
if
with
CRI'
eRr
screws.
it
the
the
If
and
and
is
bottom
small
they
the
into
into
sitting
are
two
the
of
7-8

Kaypro
These
is
are
using
Astec,
interchangeable
chan:Jed
If
a
in
another
used
is
power
in
2/83
a new
sUW1y
computer,
cc:mputers.
and
three
different
'Boschert,
with
one
is
any
from
removed
it
4/83
computers
of
the
MUsr
and
the
be
brands
Cal
Kaypro
fa.ctory.
***
EXCEPTION
from a
used
are
of
IXJWer
D.C.
These
computers,
2/83
or
in
a
2/83
not
interchangeable
********
***
a
supplies
three
if
4/83,
or
4/83.
power
the
and
at
power
it's
The
with
the
present
supplies
supply
going
power
other
time.
are
being
to
be
supplies
Kaypro
used
There
are
no
supplies.
configuration.
operation.
authorized
'!he
ClilLY
Each
dealer
authorized
brand
of
repa.irs
dealer
power
that
service
sUW1y
can
can
to
be
power
be
made
on
supplies
configured
any
fur
0 f
is
220V
the
power
220V
8-1

8.2
Two
IESCRIPl'ICN
fuses
motmted
The
other
on
are
the
fuse
AND
22flN CCNFIGJRATICN INSl.'RlCl'ICNS
associated
rear
0 f
(2.5
amp)
the
with
chassis
is
each
motmted
of
the
and
directly
power
accessible
on
supplies.
from
the
power
Q"le
outside
supply
fuse
the
toard.
(2 amp)
computer.
is
Disconnect
careful
replacement
AC
when
power
replacing
tool
<XlTlfO!lent.
22flN CCNFIGJRATICN
Astec
Identi
side.
output
Locate
ll0V,
Remove
Adifferent
power
~
fied
The
label
voltages.
the
a
pin
the
supply
SUR>ly
by
a
beige
white
will
shorting
pin
is
should
from
is
recommended
toard
will
have
shorting
be
visible
block
rYJW
configured
the
now
the
the
block
and
be
computer
fuse
on
due
with
name
labelled
on
the
shift
exposed
fur
a
right
whenever
the
power
to
the
white
ASrEC,
it
to
on
220V
difficulty
label
fullowed
TB2.
of
the
the
use.
replacing
supply
on
If
the
right
le
ft
toard.
the
byamodel
the
l:x>ard
shorting
so
0 f
the
of
right
that
fuses.
Use
reaching
0 f
is
block.
it
shorting
Be
eSPeCially
of
a
fuse
this
the
component
number,
configured
covers
block.
and
the
the
fur
pin.
The
8-2

22flN
C<NFlGURATI<N
Boschert
Identi
right
lDcate
fied
and
a
configured
(labelled
Unplug
Point
220V
the
E2
use.
RJwIer .SuR>l.y
by
the
word
al:x:>ve
six-inch
for
the
wire
110\7,
110\7).
wire
is
to
the
from
left.
"Boschert"
fuse
that
the
other
point
of
and
point
capacitor
is
soldered
end
El
and
on
El.
the
of
plug
component
C2.
to
the
wire
it
The
power
point
into
JPl.
is
attached
point
suWly
side
a f
If
E2
is
the
1:xxl.rd
the
1:xxl.rd
to
point
(labelled
now
configured
at
is
El
220\7).
lower
fur
ii
:r
Connector
--------"""!~~.<
Wire \
8-3

21!lN CCNFIGJRATICN
Cal
D.C.
IbNer
&g>ly
Identified
DC",
mmel,
'Ihere
are
board.
down
AWAY
Locate
llSVAC
Remove
labelled
by
and
two
'Ihese
FRCM
a
jumper
position
the
jumper
230VAC.
a
bright
serial
ceramic
resistors
'lliESE
block
the
from
'Ihe
blue
circuit
number
fOwer
get
resistors
quite
CCMPCNENTS.
labelled
l:x:>ard
CALIFORNIA
the
fOwer
is
configured
socket
supply
is
located
hot
115VAC
labelled
DC
b::>ard. A
on
in
the
during
and
fur
is
now
POWER
white
solder
upper
operation.
230VAC.
110\1.
l1SVAC
configured
SUPPLY
sticker
side
0 f
right-hand
Wiring
With
the
and
replace
fur
with
l:x:>ard.
220\1
"California
corner
should
jumper
it
in
use.
0 f
in
the
the
lJe
the
socket
tied
8-4
Jumper
Sockets

8.3
POiER
1.
Turn
2.
Rarove
3.
Rarove
4.
Remove
chassis.
than
5.
Rarove
6.
Rarove
7.
Rarove
POmR SUPPLY INSTALIATICN
L
Fbsition
standoffs
certain
SUPPLY
0
ff
the
the
the
from
the
the
the
that
RPMaTAL
the
machine
chassis
mainl::oard
fOur
These
inside
power
tie
po..,rer
the
power
are
aligned
the
screws
are
the
plug
wraps
supply.
power
and
hood
(6.7)•
easier
machine.
frem
supply
with
disconnect
(5.1)•
that
to
fran
the
the
inside
the
connector
connect
remove
power
plastic
the
fuur
is
the
AC
the
power
from
outside
supply.
stando
chassis
mounting
on
the
power
ffs.
so
holes
side
(5.1).
supply
the
that
nearest
in
and
back
the
the
the
0 f
fOur
chassis.
the
back
the
plastic
drives.
of
the
chassis
Be
2.
3.
4.
5.
6.
7.
Replace
Replace
Place
the
Insert
standoffs
Tighten
Replace
tie
fuur
of
the
the
the
the
wraps
screws
the
screw-s
power
through
power
securely.
connector.
mai.nlx>ard
chassis
on
hood
the
supply.
(6.7).
(5.1).
plastic
the
rear
standoffs.
0 f
the
chassis
and
into
the
plastic
8--5

9.0
DISKErI'E IIUVES
9.1
All
are
Because
drives,
each
model,
the
IN'l'R<D.JCrI<N
diskette
ftmctionally
of
no
of
the
and
knowledge,
Corporation's
fbwever,
KAYPRO
provide
of
the
This
models
KAYPRO
DISK
since
computer
a
LED
section
of
10,
OOIVE
Generally
the
environment
reason
to
drive
the
number
attempt
drives.
have
and
policy
the
guide
and
the
also
diskette
C)
drive.
crEANING
speaking
clean
types
(except
interchangeable
of
manufacturers
is
made
If
you
the
Dysan
an
oscilloscope,
is
to
company
in
which
fur
determining
drive
roth
door
contains
drives
the
majority
is
eSPecially
the
drives
between
in
this
have
access
Alignment
do
no
repairs
recognizes
drives
models
closure.
diagrams
to
be
used
of
dusty
more
than
the
high-density
manual
Diskette
go
the
have
and
as
people
or
twice
manufacturers.
from
which
to
show
to
a
drive
(Dysan's
ahead
on
and
these
fact
the
same
of
diskette
instructions
either
clean
dirty,
under
ayear.
drives
Kaypro
alignment
manual
align
components.
that
many
outward
drives
A
or
disk
commercial
part
on
B
(or,
drives
in
the
gets
procedures
fur
number:
away.
customers
appearance,
from
jumpering
in
too
ROBIE
its
diskette
a
particular
Kaypro
the
the
the
case
often.
use
and
fur
224/2A)
want
a
we
placement
various
of
Unless
there
is
4X)
the
no
Use
the
care
market
in
mechanical
***N0l'E***
ROBIE,
drives.
Re
drives,
fer
to
and
The
the
the
selecting
are
very
scrubbing.
The
manufacturer
4X
recommends
letter
"THE
FOLLCWING
AND
ARE
DRIVE
1)
2)
3)
4)
WHEN
SCOIQ-I#7440
HEAD
piRFEcr
FLOPPICLlliE 5
symptom-
Winchester
a
cleaning
abrasive.
only
from
Drivetec
CLEANING
RECCMMENDED
HEAD
CLEANING
CCMPUI'ER
PRCDUCI'S51/4
DATA51/4
1/4
fix
guide
hard
disk,
kit.
Cleaning
(Drivetec)
fuur
brands
states:
DISKS
FCR
USAGECNTHE
IS
CLEANING
CLEANING
fur
troubleshooting
and
Many
is
done
of
the
of
HAVE
DEEMED
CLEANING
DISK
DISK"
the
Drivetec
of
the
drive
by
the
high-density
head-eleaning
BEEN
EVAUJATED
DRIVEI'EC
NECESSARY:
DISK
hints
(high-density)
head
liquid
DISK
relative
cleaning
drives
kits
solution,
in
fur
to
drives.
the
their
the
kits
not
on
by
floppy
9-1

9.2
WBIaI
'lhe
fullowing
half-height
closure
BlWID <F
floppy
and
the
figures
drives
LID
IIUVE
represent
position
IS
that
IT?
can
the
are
be
face
used
used
plates
in
to
Kaypro
reference
of
the
computers.
different
the
drive.
The
brands
drive
of
door
Fig.
Fig.
9.1,
9.2,
~
TANIXN
EPSCN
II
o
II
Hal
f-Height
a:::II
~
Fig.
9.3,
SHUGART
o
9-2

Fig.
9.4,
[
TCKYO
[J
~C
_II
(l~"
1-...-:-:""
~
~1
Fig.
Fig.
9.
Ie!
9.6,
I
5,
TCSHIBA
@
HI-TECH
0
IT]
~
(
I
I
@
9--3

Fig.
9.
7,
I'
DRJ:\1El'OC
D-----00
o
Fig.
9.8,
I
TANDCN
@
Full-Height
~
-
I
9-4

9.3
JlH'EI.illl3
DIAGRAMS
Figure
Tandon
9.8
diskette
RPll
drive
~
Used
are
pack
only
on
jumpered
is
inserted
KAYPRO
and
a
in
10,
Pins
470-0hm
RPll.
2
and
terminating
15
on
U19
resistor
Figure
Epson
9.9
diskette
RAl
drive
:EI?&E
Next
to
black
plug
jumpered
drive.
KAYPRO
should
be
resistor
A DRIVE:
"0"
position.
resistor
B DRIVE:
fX>sition.
resistor
the
to
They
10:
jumpered
inserted
Jrnnper
is
Jumper
into
connector
with
change
are
The
two
No
needed.
Insert
Ml.
ten
pins.
the
MX,
0,
pins
and
in
RAl.
the
two
terminating
the
two
a
470-ohm
for
the
data
These
configuration
1,
2,
3.
in
the
a
470-0hm
pins
pins
in
in
terminating
cable
pins
are
of
"0"
position
terminating
the
the
"1"
the
is
a
9-5

Figure
Shugart
9.10
diskette
drive
Jumper
Figure
Tokyo
diskette
RAil
Jumper
option
9.11
Electric
drive
option
SfI&lOO.'
Next
blue
KAYFRO
fOsition.
three
the
2,
3,
one
to
plug
4,
10:
pins.
the
with
MX.
on
connector
Jumper
In
the
terminating
DRIVE:
A
fOsi
tion.
in
the
No
terminating
B
DRIVE:
fOsition.
in
the
Insert
TCI<YO~C
Next
to
blue
center
center
a
plug
Jumper
In
JumPer
In
47l2J-ohm
the
connector
with
DS1, DS2, DS3,
eleven
the
Jumper
left.
resistor
the
and
resistor
the
and
ten
MX.
fur
pins.
the
two
"M)("
position,
the
one
of
it.
into
the
two
"M)("
fOsi
the
pin
is
the
two
"M}("
fOsition,
the
pin
terminating
fur
pins.
the
data
These
pins
in
Insert
RPl.
pins
in
tion,
on
the
necessary.
pins
on
in
the
resistor
the
data
'Ihese
in
there
the
jumper
le
jumper
le
pins
cable
the
center
a
the
ft
the
ft
cable
is
pins
"1"
are
47l2J-ohm
"1"
the
0
fit.
"2"
the
0
fit.
into
is
are
are
and
080,
a
1,
pin
pin
RPl.
a
KAYFRO
fOsi
tion.
resistor
DRIVE:
A
fOsition.
necessary.
B
DRIVE:
fOsition.
resistor
9-6
10:
JumPer
Insert
into
Jumper
t~
Jumper
Insert
into
the
a
47l2J-ohm
RAll.
the
two
terminating
the
two
a
47l2J-ohm
RAllo
two
pins
resistor
pins
pins
in
terminating
in
the
is
in
the
terminating
the
"DSl2J"
"DS1"
"DS0"

Figure
Toshiba
9.12
diskette
drive
Jumper
Resistor
option
option
TaiHIBA
Next
black
to
3,
4,
is
a 470-0hm
plug
LI,
letters
resistor.
another
"RM"
to
the
right
terminating
be
jumpered
"RM".
the
KAYPRO
When
pins
10:
position,
and
the
terminating
A
DRIVE:
position,
and
the
terminating
the
LD,
"DM"
black
the
of
should
the
two
Jumper
the
two
connector
with
sixteen
HD,
terminating
to
the
en
the
plug.
left
of
it.
resistor
EXCEPT'
the
resistor
be
Jumper
two
pins
resistor
two
pins
resistor
HM.
le
other
'This
it
It
has
to
the
jumPered.
the
pins
in
the
is
the
two
pins
in
the
is
fur
the
pins.
Next
resistor
ft.
0
fit.
side
plug
and
sixteen
fimction,
two
is
two
in
the
"HM"
needed.
pins
in
the
"HM"
not
data
to
0 f
the
next
not
pins
position.
in
position.
needed.
These
the
with
I.Dcate
the
has
letters
pins.
all
to
needed,
in
"W"
the
"W'
cable
are
black
the
this
resistor
the
letters
"PJ5"
For
pins
the
letters
none
the
"1"
position,
The
"1"
position,
The
is
1,
plug,
the
must
a
2,
is
to
0 f
B
DRIVE:
position,
and
the
two
terminating
JumPer
the
two
pins
resistor
the
in
pins
the
two
is
pins
in
the
"HM"
needed.
in
the
"w"
position.
"2"
position,
The
9-7

The
high-densi
ROUE,
tracks
and
HIGH-DENSITY DISKEI'!'tS
'Ihe
sector,
and
per
a
fOrmatted
diskettes
192
ty
KAYFRO
inch.
storage
used
TPI
diskettes.
diskette
4X.
Each
with
drives
These
drive
capacity
the
are
are
5-1/4
has
160
cylinders
of
2.6
high-density
currently
inch,
megabytes.
drives
being0fiered
double-sided
with
MUST
a
be
in
drives
total
of
pre-fOrmatted
the
320
with
tracks
KAYFRO
192
17
DRIVE
Next
through
A
DRIVE:
the
"off'
DRIVE:
the
"off'
CCNFIGJRATICN
to
the
connector
DS
4.
DSI
should
position.
DS2
should
position.
be
be
fOr
in
in
the
the
the
data
"on"
"on"
cable
position.
position.
is
a
All
drive
All
other
select
other
switch-
switches
switches
DSI
should
should
be
be
in
in
9-9
Drive
select
switch

9.5
DISKErrE
1.
Turn
2.
Remove
off
IlUVE
the
the
chassis
REKJVl\L
ma.chine
and
hood
disconnect
(5.1).
the
AC
po.ver
(5.1).
3. Remove
the
4.
Remove
5.
Slide
tbte:
the
the
drive.
the
the
If
screws
data
four
drive
the
holding
drive
cable,
screws
out
is
the
DISKErm IlUVE INSTAUATIOO
1.
Configure
the
new
drive.
9-8.
2.
3.
4.
5.
6.
Slide
Align
Insert
After
Replace
new
the
the
four
all
drive.
drive
mounting
the
the
data
screws
screws
into
holes
through
cable,
of
hard
the
are
rower
that
the
other
(A
drive
on
inserted,
rower
plug,
secure
drive
to
drive
Drive
the
the
slide
shield.
drive
shield
plug,
and
the
shield
out
in
or
tighten
and
place.
B
Drive)
with
and
ground
drive
through
of
the
the
into
them
ground
wire
in
the
the
drive
Refer
holes
the
securely.
wire
from
drive
front
shield
to
on
drive
on
the
shield.
.~f
pages
the
mounting
the
unit,
drive
rear
rear
the
9--5
of
machine.
loosen
to
shield.
holes.
of
the
7.
Replace
the
chassis
hcx::xi.
9-10

19.9
HARD
DISK
~
(KAYPRO
19)
Kaypro
manufacturers.
are
No
technicians,
infurmation
directions
aware
disk
(see
instruct
disk.
drive
I
J
Corporation
fimctionally
adjustments
fur
that
true
problems
the
symptom-fix
their
In
many
failure.
uses
As
with
interchangeable.
are
meant
fur
that
fromahard
per
furming
head
can
be
corrected
crashes
guide.)
customers
cases
NOI'HING
hard
the
to
matter)
disk
such
to
disk
drives
diskette
be
made
on
these
which
an
operation
are
very
without
We
cannot
"ALWAYS
can
be
by
has
back
done
fromanumber
drives,
dealers
hard
drives.
"crashed"
rare
occurrences,
the
need
stress
up
their
arout
all
are
models
(or
are
requires
included
to
replace
strongly
data
the
loss
on
different
of
hard
made
And,
since
a
in
by
clean
this
however---most
the
enough
while
0 f
working
data
disk
drives
Kaypro
recovering
room,
manual.
hard
driveitsel
that
dealers
onahard
inahard-
no
Be
f.
10-1

10.2
'Ihe
~<N
hard
disk
half-height
sealed
media
contamination.
components
drives
is
drive
drives
and
on
drives
drive
Since
the
con
used
offering
heads,
the
drive.
figuration.
in
the
Winchester
with
drives
'Ihe
only
KAYPRO10are
technology.
an
air
filtration
are
sealed,
authorized
industry
there
dealer
This
system
are
service
standard,
technology
that
no
dealer
to
prevents
the
5-1/4
inch
includes
serviceable
hard
disk
10--2