Nikon OT-8A Operating instructions
Nikon
Repair
Manual
NIKON
CORPORATION
TOKYO,
JAPAN
Table
of
Contents
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L
0T-8A
TEST
PROGRAM.
1-1
1.
Key
Names
.
1-2
2.
Entering
the
Test
Program.
1-3
3.
How
to
Use
Each
Key.
1-3
4.
Exiting
from
the
Test
Program.
1-9
n.
MECHANICAL
ADJUSTMENT
PROCEDURE
ra.
OT-8A
ERROR
MESSAGE
.
HI-1
OT-8A
Error
Message.
HI-2
IV.
REPLACEMENT
OF
BOARD
FOR
OT-8A.
IV-1
1.
Operation
Unit.
IV-2
2.
Lens
Chamber
.
IV-4
3.
Printer
.
TV-5
V.
EXTERNAL
OUTPUT
AND
INITIAL
SETTING
.
V-l
1.
Factory
Initial
Setting
.
V-2
2.
Entering
the
Initial
Setting
Mode
.
V-2
3.
Setting
for
Customer
1
.
V-3
4.
Setting
for
Customer
2
.
V-8
5.
Setting
of
the
Interface
(RS-232C).
V-12
6.
Exiting
from
the
Initial
Settings
Mode.
V-15
7.
Printing
Out
the
Initial
Settings.
V-15
8.
Setting
for
Using
the
Optional
Remote
Controller.
V-17
-1
-
Repair
Manual
I.
OT-8A
TEST
PROGRAM
1.
Key
Names
.
1-2
2.
Entering
the
Test
Program.
1-3
3.
How
to
Use
Each
Key.
1-3
3-1.
Mode
Selection.
1-3
3-2.
Selecting
the
Lens
Plate
.
1-4
3-3.
Driving
the
Lens
Plate.
1-5
3-4.
Automatic
Continuous
Rotation
Mode
.
1-6
3-5.
Writing
Offset
Values
.
1-6
3-6.
Setting
Initial
Settings
for
the
Factory
State
.
1-9
4.
Exiting
from
the
Test
Program.
1-9
1-1
Repair
Manual
I.
0T-8A
TEST
PROGRAM
1.
Key
Names
The
names
of
the
keys
on
the
OT-8A
operation
panel
axe
listed
below.
This
manual
uses
the
abbreviation
of
each
key
name.
(1)
Data
selector
key:
(2)
Auxiliary
lens/ten
keys:
(3)
ENTER
key:
(4)
Binocular
key:
(5)
R/L
key:
(6)
S+/-
key:
(7)
Cross
cylinder
keys
for
cylindrical
power:
(8)
C+/-
key:
(9)
Cross
cylinder
keys
for
cylindrical
axis:
(10)
AX+/-
key:
(11)
PD
key:
(12)
ADDITION
key:
(13)
Cross
cylinder
off
key:
(14)
PRISM
key:
(15)
Auto
ref
data
input
key:
(16)
Auto
lensmeter
data
input
key:
(17)
FAR/NEAR
key:
(18)
Fine
step
key:
(19)
Cylindrical
power
transposition
key:
(20)
XY/BS
key:
(21)
CLEAR
key:
(22)
Copy
key:
(23)
PAPER
FEED
key:
(24)
PRINT
key:
[ID]
[VA]
[PD]
[SPH]
[CYL]
[AX]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[0]
[.]
[+/-]
[ENTE]
m
[R]
[L]
[R/L]
[S+]
[S-]
[XCC1]
[XCC2]
EC+]
[C-]
[XCA1]
[XCA2]
[AX+]
[AX-]
HH
[<-->]
[ADD]
[XCOF]
[PRIS]
[REF]
[DM]
[FAR1]
[FAR2]
[NEA1]
[NEA2]
[0.
12]
[1.00]
[C+/-]
[XYBS]
[CLEA]
[COPY]
[FEED]
[PRIN]
1
-
2
Repair
Manual
I.
OT-8A
TEST
PROGRAM
2.
Entering
the
Test
Program
Holding
down
[ADD]
and
[PRIS]
keys
together,
turn
on
the
POWER
switch.
When
initialization
of
the
lens
chamber
is
completed,
".001”
is
displayed
at
the
top
of
the
left
eye
field
in
the
lens
chamber
display.
Note
that
if
you
enter
the
program
with
the
motor
and
sensor
connectors
off,
it
may
take
a
long
time
for
OT-8A
to
enter
test
mode
because
information
concerning
those
connectors
cannot
be
provided.
3.
How
to
Use
Each
Key
3-1.
Mode
Selection
[FAR
1]:
Frame
mode
^
Pressing
[S+]
or
[S-]
key
once
rotates
the
lens
plates
by
one
frame
(30*),
the
astigmatism
and
prism
lenses
by
360‘,
and
the
PD
by
10
mm.
[FAR2]:
Pulse
mode
•
Pressing
[S+]
or
[S-]
key
once
rotates
the
lens
plates
and
lenses
by
one
pulse
of
the
motor.
•
Pressing
[XCC1]
or
[XCC2]
key
once
rotates
the
lens
plates
and
lenses
by
ten
pulses
of
the
motor.
[NEA1]:
Initialize
mode
Pressing
[NEA1]
key
and
one
of
[1]
through
[9]
keys
initializes
the
lens
plate,
lens
or
PD
drive
mechanism
specified
from
the
ten-key
pad.
Pressing
[0]
key
initializes
all
the
drive
mechanisms.
1-3
Repair
Manual
I.
OT-8A
TEST
PROGRAM
Selecting
the
Lens
Plate
Ten
keys
[1]
through
[8]
correspond
to
the
lens
plates
in
order
from
the
patient
side.
[1]
:
Pola
and
medium-power
lens
plate
[2]
:
High-power
spherical
lens
[3]
:
Recos
plate
[4]
:
Low-power
spherical
lens
[5]
:
Minus
astigmatism
lens
[6]
:
Plus
astigmatism
lens
[7]
:
Prism
lens
[8]
:
Prism
lens
^
[9]
:
PD
drive
mechanism:
This
operates
whichever
the
right
or
the
left,
is
selected.
Press
[R]
to
select
the
lens
section
for
the
right
eye.
Press
[L]
to
select
the
lens
secdon
for
the
left
eye.
Press
[R/L]
to
select
both
the
lens
sections.
(1)
(21
(3)
(4-)
(51
(61
(71
(8)
1-4
Repair
Manual
I.
OT-8A
TEST
PROGRAM
3-3.
Driving
the
Lens
Plate
This
subsection
refers
to
the
rotation
directions
of
lenses
on
the
tester
side.
[S+]:
Lens
plates
and
lenses
[1]
through
[8]
....
These
rotate
counterclockwise.
PD
[9].This
narrows.
[S-]:
Lens
plates
and
lenses
[1]
through
[8]....
These
rotate
clockwise.
PD
[9].This
widens.
In
frame
mode
[PARI],
lens
plates
[1]
through
[4]
rotate
by
one
frame
(30’),
the
astigmatism
and
prism
lenses
rotate
by
360‘,
and
the
PD
[9]
moves
by
10mm.
In
pulse
mode
[FAR2],
drive
mechanisms
[1]
through
[9]
operate
by
one
pulse
of
the
motor.
[XCC1]:
In
pulse
mode
[FAR2],
pressing
this
key
rotates
lens
plates
and
lenses
[1]
through
[8]
counterclockwise
by
ten
pulses
of
the
motor.
[XCC2]:
In
pulse
mode
[FAR2],
pressing
this
key
rotates
lens
plates
and
lenses
[1]
through
[8]
clockwise
by
ten
pulses
of
the
motor.
[C+]:
This
key
adjusts
lenses
[5]
and
[6]
to
change
the
cylindrical
power
by
+0.25Dpt.
[C-]:
This
key
adjusts
lenses
[5]
and
[6]
to
change
the
cylindrical
power
by
-0.25Dpt.
The
fine
step
key
[0.12]
can
be
used
to
change
the
adjustment
step
to
0.125Dpt.
[XCA1]:
This
key
adjusts
lenses
[5]
and
[6]
to
change
the
cylindrical
power
by
+3.00Dpt.
[XCA2]:
This
key
adjusts
lenses
[5]
and
[6]
to
change
the
cylindrical
power
by
-3.00Dpt.
The
fine
step
key
[0.12]
can
be
used
to
change
the
adjustment
step
to
l.OODpt.
[AX+]:
This
key
rotates
the
minus
astigmatism
lens
[5]
by
180’.
[AX-]:
This
key
rotates
the
plus
astigmatism
lens
[5]
by
180’.
[<—>]:
This
key
rotates
both
astigmatism
lenses
[5]
and
[6]
counterclockwise.
[-*<—]:
This
key
rotates
both
astigmatism
lenses
[5]
and
[6]
clockwise.
[C+/-]:
This
key
rotates
both
prism
lenses
[7]
and
[8]
counterclockwise.
[XYBS]:
This
key
rotates
both
prism
lenses
[7]
and
[8]
clockwise.
[BI]:
Pressing
this
key
to
tum
on
the
LED
enters
the
motor
into
quick
rotation
mode.
Pressing
this
key
to
turn
off
the
LED
enters
the
motor
into
normal
rotation
mode.
[1:00]:
Pressing
this
key
to
turn
on
the
LED
enters
the
motor
into
medium-speed
rotation
(test)
mode.
Pressing
this
key
to
turn
off
the
LED
enters
the
motor
into
normal
rotation
mode.
Repair
Manual
I.
OT-8A
TEST
PROGRAM
[COPY]:
Moves
lenses
[1]
through
[4]
to
the
hole
for
wiping
the
lenses.
Pressing
this
key
again
returns
the
lenses
to
the
normal
position.
[0.12]:
Pressing
this
key
to
turn
off
the
LED
puts
the
lenses
into
position
at
the
diecast
hole
for
wiping
the
lenses,
with
the
display
cover
(tester
side)
removed.
Pressing
this
key
to
turn
off
the
LED
puts
the
lenses
into
position
at
the
hole
for
wiping
the
lenses,
which
can
be
seen
be
removing
the
NIKON
nameplate
on
the
display
cover
(patient
side).
(Do
not
remove
the
NIKON
nameplate
if
a
replacement
is
not
available.)
3-4.
Automatic
Continuous
Rotation
Mode
[REF]:
Pressing
this
key
causes
the
lenses
to
rotate
and
stop
intermittently
for
about
50
minutes
and
then
stop
in
the
original
mode.
Turn
off
the
power
to
exit
from
this
mode.
A
A
[1]
key.Rotates
lens
plates
[1]
through
[4]
intermittently
about
11
seconds,
each.
[2]
key.Rotates
astigmatism
lenses
[5]
and
[6]
intermittently
about
11.5
seconds,
each.
[3]
key.Rotates
prism
lenses
[7]
and
[8]
intermittently
about
12
seconds,
each.
[4]
key.Rotates
lenses
[5]
through
[8]
intermittently
about
12
seconds,
each.
[5]
key.Drives
the
PD
motor
[9]
intermittently.
[6]
key.Rotates
lens
plates
and
lenses
[1]
and
[8]
intermittently
about
13.5
seconds,
each.
[7]
key.Activates
all
the
drive
mechanisms
[1]
and
[9]
intermittently
about
16
seconds,
each.
3-5.
Writing
Offset
Values
Since
the
sensors
of
the
lens
plates
and
lenses
are
not
fixed,
they
may
not
be
positioned
correctly.
Therefore,
the
amount
of
dislocation,
a
offset
value,
must
be
written
to
the
test
program
to
make
that
program
correct
the
position
of
the
lens
plates
and
lenses.
Offset
values
are
written
to
the
memory
EEPROM.
To
write
offset
values,
perform
fine
adjustment
of
the
position
of
the
lens
plates
and
lenses
in
pulse
mode
[FAR2],
then
complete
the
following
steps.
You
may
not
write
compensation
values
without
doing
fine
adjustment.
Since
the
displayed
offset
values
are
stored
in
memory,
they
cannot
be
verified
during
fine
adjustment.
When
you
write
or
delete
offset
values
to
or
from
memory
(EEPROM),
set
DIP
switches
Nos.
1
and
2,
located
on
the
CPU
board
in
the
lens
chamber,
to
ON.
When
you
complete
the
writing
or
deletion,
reset
DIP
switches
Nos.
1
and
2
to
OFF.
(1)
To
delete
all
data
from
memory
(EEPROM),
press
the
following
keys
in
sequence:
[LM],
[CLEA],
[CLEA]
and
[ENTE].
This
sets
each
offset
value
to
"0".
1
-
6
Repair
Manual
I.
0T-8A
TEST
PROGRAM
(2)
Writing
offset
values
*
Lens
plate
To
write
the
offset
values
for
the
plates
[1]
through
[4]
to
memory,
press
the
following
keys
in
sequence:
[LM],
[SPH]
and
[ENTE].
*
Astigmatism
lens
To
write
the
offset
values
for
the
astigmatism
lenses
[5]
and
[6]
to
memory,
press
the
following
keys
in
sequence:
[LM],
[CYL]
and
[ENTE],
*
Prism
lens
To
write
the
offset
values
for
prism
lenses
[7]
and
[8]
to
memory,
press
the
following
keys
in
sequence:
[LM],
[AX]
and
[ENTE].
*
Pupil
distance
To
write
the
offset
values
for
the
right-eye
pupil
distance
and
left-eye
pupil
distance
to
memory
separately,
press
the
following
keys
in
sequence:
[LM],
[PD]
and
[ENTE],
*
Identification
number
To
write
an
identification
number
to
memory,
press
the
following
keys
in
sequence:
[LM],
[ID],
XXXXX
,
and
[ENTE],
~
'
Enter
a
5-digit
number
from
the
ten-key
pad.
Before
the
above
work,
select
the
right
or
left
eye
lens
section
by
using
the
[R]
or
[L]
key.
Offset
values
cannot
be
written
in
binocular
mode
[R/L].
1-7
Repair
Manual
I.
0T-8A
TEST
PROGRAM
(3)
Displaying
offset
values
Pressing
[LM],
[PRIN]
and
[ENTE]
in
sequence
outputs
offset
values
from
memory
(EEPROM)
to
the
lens
chamber
display.
The
order
of
the
display
is
as
follows:
R
field
on
the
left
part
of
the
display
l
[1-1,
Offset
value
of
right
eye
lens
plate
Till
i
[1-2,
Offset
value
of
right
eye
lens
plate
[211
l
[1-3,
Offset
value
of
right
eye
lens
plate
[311
i
[1-4,
Offset
value
of
right
eye
lens
plate
[411
l
[1-5,
Offset
value
of
right
eve
cylindrical
lens
[511
1
L
field
on
the
right
part
of
the
display
i
[2-1,
Offset
value
of
left
eye
lens
plate
mi
l
[2-2,
Offset
value
of
left
eye
lens
plage
r211
[2-3,
Offset
value
of
left
eye
lens
plate
r311
i
[2-4,
Offset
value
of
left
eye
lens
plate
r4H
X
[2-5,
Offset
value
of
left
eye
cylindrical
lens
[511
1
[1-6,
Offset
value
of
right
eve
cylindrical
lens
[611
[2-6,
Offset
value
of
left
eye
cylindrical
lens
[611
i
[1-7,
Offset
value
of
right
eye
prism
lens
[711
i
[1-8,
Offset
value
of
right
eye
prism
lens
r811
1
[1-9,
Offset
value
of
right
eye
prism
lens
f911
i
[2-7,
Offset
value
of
left
eye
prism
lens
[711
X
[2-8,
Offset
value
of
left
eye
prism
lens
[811
X
[2-9,
Offset
value
of
left
eye
prism
lens
[911
After
the
above
values
are
displayed,
finally
the
following
information
is
listed.
Left
part
of
display
Right
part
of
display
[Product
number:
First
digit]
[dISP]
[Product
number:
Last
four
digits]
[ENd]
[Sum
check
value]
[
Ver.No.
]
*
Offset
values
are
used
to
correct
the
positions
of
lens
plates
[1]
through
[4],
the
angles
between
the
base
and
axis
for
lenses
[5]
through
[8],
and
the
difference
from
64
mm
for
the
PD.
1-8
Repair
Manual
I.
OT-8A
TEST
PROGRAM
3-6.
Setting
the
Initial
Settings
for
the
Factory
State
(1)
Setting
the
factory
state
©
Open
the
DIP
switch
cover
on
the
bottom
of
the
operation
unit.
Set
No.
7
on
DIP
switch
S1
and
No.
1
on
DIP
switch
S2
to
ON.
®
Holding
down
the
[ADD]
and
[PRIS]
keys
together,
turn
on
the
power
to
enter
the
test
program.
(D
Press
the
[NEA1]
and
[FAR1]
keys
to
turn
on
the
LED
©
Press
the
secret
key
between
the
[ADD]
key
and
the
[XCOF]
key,
then
press
the
[ENTE]
key.
The
factory
state
initial
settings
are
set
to
export
specifications.
©
Turn
off
the
power,
set
No.
7
on
DIP
switch
SI
and
No.
1
on
DIP
switch
S2
to
OFF,
then
close
the
cover.
(2)
Printing
out
the
initial
settings
Press
the
[PRIN]
key
to
print
out
the
initial
settings
in
the
operation
unit
CPU
board
memory.
**
Sample
printout
dnitial
settings>
[Export
model]
1.1
print
form
1
1.2
sign
of
SPH
-
1.3
sign
of
CYL
-
1.4
auto
SPH
+
on
1.6
data
select
YMD
1.7
time
select
24h
2.1
recos
reti
1.5
2.2
prism
set
on
2.3
va
sel
lect
0.1
2.4
X.
C
va
I
ue
.5
2.5
chart
auto
on
2.6
PD
select
R.L
3.1
RS232C
CHI
nnk
3.2
RS232C
CH2
off
3.3
entry
Idata
on
3.4
out
RS232C
off
4.
Exiting
from
the
Test
Program
The
only
method
of
exiting
from
the
test
program
is
to
turn
OFF
the
power
switch.
1-9
Repair
Manual
III.
0T-8A
ERROR
MESSAGE
0T-8A
Error
Message
m-2
III
-1
Repair
Manual
III.
0T-8A
ERROR
MESSAGE
OT-8A
Error
Message
This
chapter
describes
the
messages
of
communication
errors
which
may
occur
in
version
1.0
or
later
of
ROM
used
in
the
OT-
8A
lens
chambers.
Error
message
Description
Cause
E101
•
Communication
error
between
a
lens
chamber
and
the
operation
unit.
•
DTR
control
(communication
request)
error
when
communication
is
started.
•
CPU
does
not
operate
properly
when
OT-8A
is
turned
on.
•
The
communication
cable
is
broken
•
U7
M89251A
in
the
operation
unit
or
a
lens
chamber
is
faulty.
El
02
•
Since
offset
data
in
EEPROM
of
a
lens
chamber
is
incorrect,
initialization
cannot
be
done.
•
U5
EEPROM
is
faulty.
•
OT-8A
was
turned
on
with
the
DIP
switch
SI
ON,
which
disables
writing
of
data.
•
Noise
such
as
static
electricity.
E103
•
Data
cannot
be
written
to
EEPROM
of
a
lens
chamber.
•
The
DIP
switch
SI
which
disables
,*
writing
of
data
was
set
incorrectly.
•
U5
EEPROM
is
faulty.
E104
El
05
E106
El
07
•
These
errors
occur
during
debugging
of
ROM
under
development
(These
do
not
appear
in
products
units).
•
These
errors
occur
when
a
bug
is
found.
E202
E203
E204
E205
E206
E207
E208
E209
•
Errors
occurring
during
an
exchange
of
data
between
a
lens
chamber
and
the
operation
unit.
(OT-8A
may
automatically
recover
from
these
errors.)
•
A
noise.
•
U7
M89251A
in
the
operation
unit
or
a
lens
chamber
is
faulty.
•
The
communication
cable
is
broken.
•
The
CPU
&
MEMORY
board
in
the
operation
unit
or
a
lens
chamber
are
faulty.
111-2
Repair
Manual
TV.
REPLACEMENT
OF
BOARD
FOR
0T-8A
:
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;
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-
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S'.'VA'.V.V.WJ.V.V.V.V.V/,'
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sv
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1.
Operation
Unit.
IV-2
2.
Lens
Chamber
.
IV-4
3.
Printer
.
TV-5
IV-1
Repair
Manual
IV.
REPLACEMENT
OF
BOARD
FOR
OT-8A
1.
Operation
Unit
©
CPU
&
MEMORY
board
(1)
a.
Notes
•
Make
sure
that
the
EPROMs
(U14,
U15,
U16)
are
the
latest
versions.
•
Remove
the
U6
EEPROM
from
the
old
CPU
board
and
insert
it
on
the
new
board.
Reset
the
initial
settings
if
a
new
EEPROM
is
used.
•
Set
No.
2
on
DIP
switch
S2
to
ON.
•
Set
the
DEP
switch
SI
according
to
the
setting
of
that
on
the
old
board.
•
Connect
the
connectors
with
the
external
interface
and
lens
chamber
correctly.
Connectors
on
a
board
Connector
name
J2:
9
pins
A
cable
from
the
external
interface
CHI
J3:
9
pins
A
cable
from
the
external
interface
CH2
Jl:
7
pins,
for
signal
A
cable
from
the
upper
part
of
the
connector
to
a
lens
chamber
J9:
8
pins,
for
power
A
cable
from
the
lower
part
of
the
connector
to
a
lens
chamber
J7:
8
pins
A
cable
from
the
IC
card
reader/writer
b.
Check
after
replacement
(if
possible)
•
With
a
lens
chamber
connected,
check
the
supply
voltage
using
a
tester.
Power
supply
Pin
to
be
checked
Voltage
+5V
d
TP1
(RED)
-
TP4
(BLACK)
+5.1V+0.2V
+5V
d
TP9
(RED)
-
TP10
(BLACK)
+5.1V±0.2V
+12V
d
TP2
(RED)
-
TP4
(BLACK)
+11.9V±0.2V
+12V
d
TP5
(RED)
-
TP
10
(BLACK)
+11.9V±0.2V
—12V
d
TP3
(RED)
-
TP4
(BLACK)
—12.0V±0.2V
-12V
d
TP6
(RED)
-
TP
10
(BLACK)
—12.0V±0.2V
+18.0V11.5V
+12V
m
TP8
(RED)
-
TP
10
(BLACK)
(when
motor
is
stopped)
+13.0V
-+18.0V
(when
motor
is
in
operation)
*
TP
10
is
a
grounding
pin
(GND).
The
(red)
and
(black)
are
the
colors
of
tester
cables.
•
Check
that
all
keys
operate
properly.
When
each
key
is
pressed,
a
buzzer
must
sound.
IV
-2
Repair
Manual
IV.
REPLACEMENT
OF
BOARD
FOR
OT-8A
c.
Check
after
assembly
•
Turn
on
OT-8A
and
make
sure
that
an
error
message
or
"AAAA"
does
not
appear
on
the
lens
chamber
display.
•
Turn
on
OT-8A
and
make
sure
that
all
LEDs
on
the
operation
unit
and
lens
chamber
are
lit.
•
Make
sure
that
the
volume
VR2
can
control
the
contrast
of
LCD,
and
adjust
the
contrast.
•
Make
sure
that
initialization
of
lens
chamber
is
completed.
•
Make
sure
that
the
volume
VR1
can
control
the
level
of
key
buzzer,
and
adjust
the
sound
level.
•
Set
the
date
and
time.
•
Make
the
required
initial
setting,
paying
particular
attention
to
the
setting
concerning
communication.
®
Printer
&
key
display
control
board
a.
Note
•
A
spacer
is
inserted
between
this
board
and
the
keyboard.
b.
Adjustment
after
replacement
•
Use
VR1
to
adjust
the
density
of
printed
image.
Connect
an
oscilloscope
with
TP2
and
TP4
(GRD)
and
adjust
the
pulse
width
according
to
the
rank
indicated
on
the
printer
head
cable.
Rank
of
printer
head
A
B
C
Pulse
width
101
±2jisec
92
±
2p.sec
83
±
2jisec
L
Pulse
width
•
Use
the
DIP
switch
SI
to
eliminate
horizontal
deviation
of
printer
head.
Press
[PRINT]
key
to
print
characters.
Correct
horizontal
deviation
between
the
first
and
second
lines
by
changing
the
setting
of
the
DIP
switch
SI.
No.
1
No.
2
Deviation
ON
ON
0
OFF
ON
-1
ON
OFF
+
1
OFF
OFF
+2
When
setting
of
the
DIP
switch
is
changed,
tum
OT-8A
off
and
on
again.
IV-3
Repair
Manual
IV.
REPLACEMENT
OF
BOARD
FOR
OT-8A
(2)
Keyboard
board
a.
Note
•
When
installing
the
keyboard
board,
position
the
set
of
switches
on
the
board
under
the
keyboard.
©
Other
boards
(printer
interface
board
and
printed
circuit
board)
•
Note
connector
locations.
2.
Lens
Chamber
©
CPU
&
MEMORY
board
(2)
a.
Notes
•
Check
that
the
EPROM
(U3
and
U4)
is
of
the
latest
version
(Ver
1.5
was
the
latest
on
June
13,
1989).
•
Transfer
the
EEPROM
(U5)
from
the
old
board
and
to
the
new
board.
•
Fit
the
insulating
plastic
plate
and
spacer
to
the
board.
•
Make
sure
that
the
DIP
switch
SI
is
all
OFF.
•
Connect
correctly
the
connectors
of
the
motor
and
sensor
cables
with
the
board.
•
Carefully
fit
the
front
cover.
b.
Check
after
assembly
•
Turn
on
OT-8A
and
make
sure
that
an
error
message
or
"AAAA"
does
not
appear
on
the
lens
chamber
display.
•
Turn
on
OT-8A
and
make
sure
that
all
LEDs
on
the
lens
chamber
are
lit.
•
Make
sure
that
initialization
of
lens
chamber
is
completed.
•
In
test
mode,
press
[LM],
[PRINT]
and
[ENTER]
keys
in
that
order.
Check
that
the
displayed
offset
values
are
the
same
as
those
marked
on
the
upper
cover
of
the
lens
chamber
body.
©
Display
board
a.
Notes
•
Position
the
area
including
the
circuits
of
LEDs
and
7-segment
displays
in
the
display
board
under
the
display
on
the
front
cover.
•
Connect
the
connectors
J1
and
J2
in
the
correct
orientation.
•
Orient
the
circuits
of
the
LEDs
for
D50
andD51
signals
on
the
board
straight
to
the
front.
•
Carefully
fit
the
front
cover.
b.
Check
after
assembly
•
Turn
on
OT-8A
and
make
sure
that
all
LEDs
on
the
lens
chamber
are
lit.
•
Check
that
all
the
LEDs
and
7-segment
displays
have
the
same
brightness.
IV-4
Repair
Manual
IV.
REPLACEMENT
OF
BOARD
FOR
OT-8A
3.
Printer
a.
Notes
•
Take
care
not
to
cut
the
printer
head
cable.
•
Install
the
printer
in
a
place
that
will
not
cause
paper
jam.
b.
Adjustment
after
replacement
•
Use
VR1
on
the
CPU
&
MEMORY
board
(1)
to
adjust
the
density
of
printed
image.
Connect
an
oscilloscope
with
TP2
and
TP4
(GRD)
and
adjust
the
pulse
width
according
to
the
rank
indicated
on
the
printer
head
cable.
Rank
of
printer
head
A
B
C
Pulse
width
101
±2jisec
92
±
2[isec
83
±2|isec
IV-5
Repair
Manual
V.
EXTERNAL
OUTPUT
AND
INITIAL
SETTING
AyWAV/AWAVAV/AVN
v\w\v<<<v\W\vC\'Xv;-'<wA'X<S'XvW'*'^
•
y>:
<•'
«.
:
>>:
%•%-.*
Ai%WA<\
*.
V.'AWXS"
A*^>X\^V
1.
Factory
Initial
Setting.
V-2
2.
Entering
the
Initial
Setting
Mode
.
V-2
3.
Setting
for
Customer
1
.
V-3
4.
Setting
for
Customer
2
.
V-8
5.
Setting
of
the
Interface
(RS-232C).
V-12
6.
Exiting
from
the
Initial
Settings
Mode.
V-15
7.
Printing
Out
the
Initial
Settings.
V-15
8.
Setting
for
Using
the
Optional
Remote
Controller
.
V-17
V-i
Repair
Manual
V.
EXTERNAL
OUTPUT
AND
INITIAL
SETTING
OT-8A
External
Output
and
Initial
Setting
This
chapter
describes
the
initial
setting
in
ROM
of
the
version
or
later.
1.
Factory
Initial
Setting
a.
for
CUSTOMER
1
•PRINTFORMAT
-
•
SIGN
OF
SPH
-.
•
SIGN
OF
CYL
-
•
AUTO
SPH+
(XC)-.
•
DATE
TIME
SET--
•
DATE
Y.M.D
SELECT
—
•
TIME
24h
or
12h
-
1.
s
ubj
(FI,
F2,
N)
1.
minus
sign
1.
minus
sign
1.
auto
9111271030
(set
at
factory)
1.
Y.M.D
1.
24h
b.
for
CUSTOMER
2
•
RECOS
RETINO-*
1.
1.50D
•PRISM
PRESET-
1.
ON
(Export)
•VASELEC
-*
2.
0.1
(decimal
display)
•VALUE
OF
X.C
-
1.
0.5
0D
•
CHART
AUTO
MOVE
—
2.
OFF
•
PD
SELECT
--
1.
R
PD,
L
PD
(Export)
c.
for
INTERFACE
•
•
RS232C
CHI
-
•
RS232C
CH2
-
•
1
DATA
DIRECT
IN
-
•
DATA
OUT
AT
PRIM
—
2.
NR-5100
4.
no
use
1.
YES
(receive
only
one
data)
3.
no
data
out
OT-8A
is
shipped
with
the
above
initial
settings.
These
initial
settings
are
stored
in
the
U6
EEPROM
on
the
operation
unit
CPU
board.
If
you
replace
the
board,
be
sure
to
use
the
U6
EEPROM
from
the
old
board.
2.
Entering
the
Initial
Settings
Mode
©
Turn
off
the
OT-8A
operation
unit
power
switch.
®
Turn
the
operation
unit
over.
Remove
the
+
screw
on
the
DIP
switch
cover
on
the
bottom
of
the
operation
unit
and
turn
the
cover
90*
to
expose
the
DIP
switch.
V
-
2
Repair
Manual
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