Nikon NP-3S User manual
INSTRUCTIONS
CHART
PROJECTOR
NP-3S
Remove
the
adhesive
tape
from
the
lid
of
the
projector’s
shipping
box.
Then
take
out
the
power
cord,
dry
batteries,
and
vinyl
bag.
•
Thank
you
for
purchasing
the
Nikon
Chart
Projector
NP-3S.
Read
these
Instruc¬
tions
thoroughly
in
order
to
get
the
most
out
of
this
equipment.
Keep
these
Instructions
handy
so
that
you
can
refer
to
them
whenever
the
need
arise
due
to
an
ambiguity
or
other
difficulty.
•
These
Instructions
are
for
countries
other
than
Japan.
•
Check
now
that
you
have
the
warranty
card.
NIKON
CORPORATION
CONTENTS
Read
items
with
“a”
mark
in
the
event
of
urgency.
a
1.
Handling
Cautions.
1
2.
Nomenclature.2
a
3.
Setting.4
3-1.
Installation.4
3-2.
Cord
Connection.
4
3-
3.
How
to
Install
the
Screen
(Optional
Accessory
-For
U.S.A.
only).4
a
4.
How
to
Use.
5
4-
1
.
Power
ON.
5
4-
2.
Projection
and
Focusing.
5
a
5.
How
to
Operate
the
Wireless
Remote
Controller.6
5-
1
.
Nomenclature
of
Wireless
Remote
Controller.
5
5-
2.
Remote
Controller
Speaker
Sound
and
Power
Saving.
]
5
6.
Maintenance.
1
7
6-
1
.
Illumination
Lamp
Replacement.17
6-2.
Fuse
Replacement.
1
8
6-3.
Remote
Controller
Battery
Replacement.18
6-4.
Setting
of
Optional
Chart
(Optional
Accessory).
1
9
6-5.
Attachment
of
the
Remote
Controller
with
Wire.20
6-6.
Setting
for
Use
of
Multiple
Projectors.20
7.
List
of
Charts.22
8.
Main
Specifications.28
9.
Standard
Set
and
Optional
Accessories.29
1.
Handling
Cautions
(1)
Install
this
projector
in
a
flat
place
away
(5)
Wipe
any
dirt
off
the
main
body
and
the
from
dust
and
humidity.
Avoid
a
place
screen
(optional
accessory)
with
a
dry
soft
exposed
to
direct
sunlight
or
to
air
coming
cloth
such
as
gauze,
or
a
cloth
soaked
with
directly
from
a
heater/cooler.
water.
Never
use
other
organic
solvents
(2)
This
projector
is
a
high-precision
optical
(6)
Operate
the
remote
controller
while
point-
instrument
incorporating
many
electrical
ing
it
at
the
receiver
at
the
front
of
chart
parts.
Always
handle
the
instrument
with
projector
main
body,
care.
Never
disassemble
this
projector.
Remote
control
..—^
receiving
section
(3)
Do
not
touch
the
vent
hole
directly
or
at-
(7)
Never
allow
direct
sunlight
to
enter
the
tempt
to
close
the
hole
by
hand
or
with
a
remote
control
receiving
section.
The
sun-
tool
while
the
illumination
lamp
is
ON,
be-
light
may
disturb
normal
operation,
because
cause
the
hole
is
very
hot.
infrared
ray
is
used
for
remote
control.
(4)
Keep
clean
the
surface
of
the
projection
(8)
After
use,
turn
OFF
the
main
switch
and
lens
and
protect
it
from
dust,
fingerprint
cover
the
projector
with
the
vinyl
bag.
or
damage.
Dirty
lens
may
affect
image
Fig.
1-1
1
2.
Nomenclature
NP-3S]
Side
view
I
L_
J
Fig.2-1
The
power
switch
on
the
power
panel
and
the
nameplates
show
the
following
symbols
having
the
meanings
indicated.
Symbol
Meaning
~
AC
current
-EE3-
Fuse
o
OFF
(Power
is
disconnected)
ON
(Power
is
connected)
*
B-type
equipment
NP-3S
Front
view
Remote
control
receiving
section
pilot
,
amp
Focusing
ring
(Turn
this
ring
for
focusing)
Fig.
2-2
For
variable
focus
model
(For
details,
see
page
5)
3
3.
Setting
3-1.
Installation
First
take
the
NP-3S
out
of
the
housing
box,
then
perform
one
of
the
following
three
pro¬
cedures
for
installation.
(1)
When
using
the
NP-3S
in
combination
with
Nikon
Chair
and
Stand
Unit,
place
the
NP-3S
on
the
projector
table
and
secure
it
by
fastening
two
set
screws
(provided)
from
the
bottom
of
table
into
screw
holes
in
the
bottom
of
the
main
body.
(2)
When
using
the
NP-3S
in
combination
with
the
wall-mounting
arm,
fasten
two
set
screws
from
the
table
bottom
into
the
screw
holes
in
the
bottom
of
the
main
body
in
the
same
way
as
above
(1).
(3)
When
placing
the
NP-3S
directly
on
the
table
without
securing
it
by
screws,
turn
the
four
rubber
legs
at
the
bottom
of
NP-3S
to
adjust
the
height.
3-2.
Cord
Connection
First
plug
the
output
connector
of
the
power
cord
into
the
receptacle
at
the
rear
of
the
main
body.
Then
plug
the
input
connector
into
the
power
supply
wall
outlet.
★
Confirmation
of
the
input
supply
voltage
The
projector
allows
selection
of
supply
voltage
(100
V,
120
V,
220
V,
and
240
V).
Make
sure
that
the
voltage
display
of
the
instrument
corresponds
to
the
supply
voltage
to
be
used,
before
connecting
the
power
cord.
(The
voltage
selection
is
already
preset
at
the
factory
for
each
destination.)
When
voltage
setting
happens
to
be
wrong,
release
the
click-locks
on
the
sides
of
the
fuse
box
by
pressing
with
a
single-blade
screwdriver
or
the
like,
and
pull
out
the
fuse
box.
Reset
the
inner
voltage
selector
so
that
the
voltage
shown
in
the
notch
of
Voltage
display
Fuse
box
the
selector
matches
the
supply
voltage
to
be
used.
Power
receptacle
Fig.
3-1
3-3.
How
to
Install
the
Screen
(optional
accessory
for
U.S.A.
only)
Fix
the
metal
supports
for
the
screen
on
the
wall
with
tapping
screws,
then
hang
the
screen
with
string.
4
4.
How
to
Use
4-1.
Power
ON
After
connection
of
the
power
cord,
turn
ON
the
main
switch
as
Fig.
4-1.
The
power
pilot
lamp
goes
ON
immediately.
The
chart
returns
to
the
start
position
(0.1
or
400
visual
acuity
chart)
and
the
illumi¬
nation
lamp
goes
ON.
The
illumination
lamp
can
be
turned
ON/OFF
when
the
lamp
key
of
the
remote
controller
is
pressed
(see
page
6
to
7)
Fig.
4-1
4-2.
Projection
and
Focusing
Set
the
projector
so
that
the
distance
be¬
tween
the
front
projection
lens
and
the
screen
will
be
approximately
equal
to
the
distance
between
the
patient
and
the
screen,
as
shown
in
Fig.
4-2.
Locate
the
projected
image
at
the
center
of
the
screen
and
focus
it
by
turning
the
focusing
ring.
If
you
wish
to
check
the
size
of
chart
at
3m,
4m,
5m,
or
6m,
use
the
test
scale
sheet
provided
in
case
of
variable
focus
model,
focus
the
chart
as
follows.
For
variable
focus
model
1)
Loosen
the
two
screws.
2)
Adjust
the
size
of
the
chart
with
the
tube
B.
Focus
the
chart
with
the
tube
A.
(It
is
better
to
rotate
the
tube
to
slide
it
back
and
forth.)
Testing
at
10
ft
to
20
ft
(3m,
4m,
5m,
or
6m)
distance
can
be
facilitated
by
using
the
test
scale
sheet
provided.
Fix
the
test
scale
sheet
on
the
screen
with
adhesive
tape
and
project
the
20/200
C
letters
chart
onto
it
in
case
of
the
instrument
for
variable
focus
model.
Then
move
the
projector
backward
and
forward
so
that
the
height
of
the
projected
image
when
focused
becomes
same
to
the
height
of
scale
bracket
which
corresponds
to
refracting
distance.
Refracting
distance
should
be
either
10
ft
to
20
ft
(3m,
4m,
5m,
or
6m).
3)
Tighten
the
screws
as
before.
Tube
A
is
used
for
focusing.
Tube
B
is
used
for
magnification
adjustment.
5
5.
How
to
Operate
the
Wireless
Remote
Controller
5-1.
Nomenclature
of
Wireless
Remote
Controller
The
names
of
remote
controller
parts
and
operation
method
are
described
below.
1.0
letters
model
1
0
numbers
model
1.0
letters
model
(1)
Lamp
key
-
(2)
Monocular
measurement
key
(*15)
Binocular
measurement
key
(*5)
(5)
Programmed
chans
operation
key
(x2)
6
20/20
letters
model
(1)
Lamp
key
(2)
Monocular
measurement
key
(xlS)
Binocular
measurement
key
(x5)
v
Optional
chart
key
(x4)-
(3)
Mask,
Red/Green
Filter'
overlay
key
Nikon
NP-3S
REMOTE
CONTROLLER
Ur
PROGRAM
2
OUT
•
400
%
200
cm
CZ3
*
i—i
50
40
cm
*
i—i
LU
.1=1
o
—
o
’§
Lcvj
—
i—i
200
1=1
100
60
cm
40
°
20
1-1
•
cm
'
+
1—1
H
cm
O
1
1
rh
l—1
cm
1-1
=i
4
D-
O-
OPEN
|
CD
|
,(4)
Programming
key
(x4)
-(5)
Programmed
charts
operation
key
(x2)
V_
J
Fig-
5-1
(1)
Lamp
key
CAMP
CZ3
•
For
turning
ON/OFF
the
illumination
lamp.
(2)
Monocular
measurement
key
Binocular
measurement
key
Optional
chart
key
•
Pressing
one
of
these
keys
rotates
the
chart
disk,
and
the
disk
stops
when
the
selected
chart
comes
to
the
optical
pathway.
7
Fig.
5-2
8
(3)-1
Mask
key
and
R/G
overlay
key
The
charts
shown
below
for
illustration
purposes
apply
to
European
multiple
chart
and
Snellen
chart,
which
may
be
different
from
your
projector.
Horizontal
mask
key
Horizontal
mask
key
for
one
character
Mask
open
key
•
Pressing
one
of
these
keys
•
Pressing
one
of
these
keys
allows
presen¬
tation
of
the
desired
chart
portion
while
covering
any
undesired
chart
portion.
Table
of
Maskable
Charts
European
multiple
Numbers
chart
Snellen
numbers
chart
Snellen
chart
chart
Single-letter
No.
4
No.
4
No.
4
mask
No.
5
No.
5
No.
5
No.
6
No.
6
No.
6
No.
12
No.
12
No.
13
Single-row
Same
as
above.
No.
4
No.
4
mask
plus
No.
15
No.
5
No.
5
No.
6
No.
6
No.
12
No.
12
No.
15
Single-column
No.
4
No.
4
No.
4
mask
No.
5
No.
5
No.
5
No.
6
No.
6
No.
6
No.
12
No.
12
No.
13
•
How
to
use
mask
keys
A)
Each
time
the
horizontal
mask
key
is
pressed,
the
horizontal
long
chart
portion
is
shifted
downward
by
3
steps.
=C>
r
\
n
O
K
z
D
0.5
K
V
O
H
O
C.S
«
«
•
•
N
17
V_
R
O
K
Z
O
0.5j
r
\
B
O
K
Z
D
oj
Fig.
5-3
B)
Each
time
the
vertical
mask
key
is
pressed,
the
vertical
long
chart
portion
is
shifted
to
the
right
by
5
steps.
Fig.
5-4
The
mask
for
variable-magnification
type
multiple-chart
is
all
black,
unlike
the
above
illustrations.
9
C)
Each
time
the
horizontal
mask
key
for
one
character
[
(
■
-
►
)
]
(Fig.
5-5)
or
the
vertical
mask
key
for
one
character
[(
■
!
)
]
(Fig.
5-6)
is
pressed,
the
character
is
shifted
to
the
right
by
5
steps
or
downward
by
3
steps.
Fig.
5-6
D)When
either
of
above
keys
is
pressed
while
the
chart
is
already
masked
vertically
or
horizontally,
the
character
is
shifted,
character
by
character,
to
the
right
by
5
steps
or
downward
by
3
steps.
(Masked
horizontally)
(
5
R
O
K
2
D
OS
I
K
V
D
«
O
u
•
■
•
■
0
*
’
V_
J
Fig.
5-7
O
K
Z
D
i
111
(Masked
vertically)
ol
»
v)l
(
\
g
O
K
i
D
R
O
K
Z
D
0.5
0
V
O
n
O
u
CMS
o
*
0.7
L_
)
o
m
•
e
x
Q.7
_y
O
K
Z
O
05
0
■
V._
Fig.
5-8
(3)-2
Red/Green
overlay
key
All
charts
(including
the
four
optional
charts)
can
be
overlaid
with
the
red/green
filter.
Example:
Red
Green
Fig.
5-9
10
(4)
Programming
key
•
Use
these
keys
to
set
the
order
of
charts
to
be
displayed.
The
1
key
and
2
key
can
set
one
program
each.
Each
program
can
hold
a
record
of
the
charts
up
to
16
times
(max.
32
times).
After
setting,
the
program
is
retained,
even
after
the
main
switch
is
turned
OFF
until
it
is
reset.
•
As
with
the
mask
key,
the
R/G
overlay
key
is
available
to
program
overlay
with
the
R/G
filter.
•How
to
set
the
program
(Perform
steps
1
through
5
in
order.)
1
First
press
the
set
key,
then
1
(or
2)
key.
Melody
plays.
2
Press
the
key
for
desired
chart
and
the
mask
key.
(If
you
pressed
a
wrong
key,
just
press
the
correct
key.)
3
Press
the
set
key
again.
A
“Beep
beep”
sounds
to
indicate
that
the
first
setting
is
over.
4
Repeat
above
steps
2
and
3
for
next
settings.
Upon
completion
of
the
maxi¬
mum
16th
setting,
the
final
“Beep
beep
beep”
is
sounded.
5
Press
the
out
key
to
complete
settings
by
1
(or
2)
key.
(16
settings
can
be
made.)
I
I
)
Chart
key,
Mas
k
key
and
R/G
overlay
key
SET
I
OUT
—-ft
ft—-ft-—
f
t
(Melody)
(Press
the
key
for
desired
chart
and
the
mask
key.)
(“Beep
beep”
sound.
“Beep
beep
beep”
sound
at
the
16th
setting.)
Fig.
5-10
11
Example
of
program
setting
1
When
charts
are
to
be
ordered
in
the
program
1
key
as
shown
below.
Chart
displayed
r
D
H
N
«
N
KOV
H
u
D
S
z
C
V
m
V...
y
*
[:::
:_ij
*
TO
=>
(
•••••
/
Key
operated
SET
Ha
S
E
H
*H,
SET
4(r
SET
set
1
^'
OUT
Fig.
5-11
2
When
charts
are
to
be
ordered
in
the
program
2
key
as
shown
below.
•Program
operation
(Perform
1
through
4
).
1
After
program
setting,
first
press
the
1
(or
2)
key.
Melody
plays,
the
first
chart
and
mask
(Fig.
1)
already
stored
is
displayed.
2
Press
the
program
forward
key.
The
next
chart
is
displayed
according
to
the
pro¬
gram.
At
the
final
chart,
the
end
signal
sounds.
Pressing
the
program
backward
key
causes
the
program
to
be
displayed
in
reverse
order.
s
(-
ft)-1
(
■
ft)—-it
(First
chart
appears
with
a
melody.)
(Returns
to
normal
key
operation.)
Fig.
5-13
12
*The
chart
key
and
mask
key
may
be
used
even
during
program
operation.
To
return
to
program
operation,
press
either
the
program
forward
or
program
back¬
ward
key.
3
To
return
to
the
first
chart
during
measurement,
press
the
1
(or
2)
key.
4
Finally,
press
the
out
key
to
return
to
normal
key
operation.
Example
of
program
operation
1
W
hen
the
program
set
in
the
example
1
of
the
previous
page
is
to
be
operated
2
W
hen
the
program
set
in
the
example
2
of
the
previous
page
is
to
be
operated
(backward
operation)
Fig.
5-15
3
W
hen
the
program
set
in
the
example
2
of
the
previous
page
is
to
be
operated
(non-programmed
chart
display
during
operation)
Fig.
5-16
13
•To
clear
the
program,
while
keeping
to
press
the
set
key,
press
the
1
(or
2)
key.
The
program
can
not
be
cleared
during
program
operation,
or
during
program
setting.
ft--ft
(-
ft)
Fig.
5-17
•
For
partial
modification
of
the
program,
perform
steps
1
through
4
as
follows:
1
Perform
steps
described
in
1
of
“How
to
Set
the
Program”.
The
first
chart
and
mask
already
programmed
is
displayed.
2
Press
the
set
key.
The
chart
and
mask
is
displayed
according
to
the
program.
3
When
the
chart
and
mask
to
be
modified
is
displayed,
take
steps
2
and
3
of
the
“How
to
Set
the
Program”
4
Finally,
press
the
out
key
to
complete
partial
modification.
Chart
key.
Mask
and
.
R/G
overlay
key
ft
—
ft—
ft
ft
—ft—
f
t
Melody
Press
Chart
to
be
modified
and
“Beep
beep”
sound
mask
to
be
modified
Fig.
5-18
Remarks:
If
a
program
is
already
set,
the
following
partial
modification
of
the
program
is
not
possible.
•
Deleting
of
a
chart
•
Inserting
of
a
chart
(However,
if
total
number
of
programmed
charts
is
less
than
16,
it
is
possible
to
add
charts
next
to
the
last
chart.
For
example,
if
12
charts
are
programmed,
additional
program
of
up
to
4
charts
(13th
to
16th)
is
possible.)
•
For
whole
modification
of
the
program,
perform
steps
1
and
2:
1
Perform
steps
described
in
Fig.
5-17
“To
clear
the
program.”
of
page
14,
so
that
present
program
should
be
cleared.
2
Perform
steps
described
in
“How
to
set
the
program”
in
page
10,
to
set
a
new
pro¬
gram.
14
Example
of
partial
program
modification
1
When
the
third
chart
programmed
in
the
former
example
1
is
to
be
modified
from
to
r
\
s
e
v
•
m
u
O
I
-
«
■
01
..
v__
2
When
the
first
chart
programmed
in
the
former
example
2
is
to
be
modified
(5)
Programmed
charts
operation
key
Chart
program
backward
key
Chart
program
forward
key
•
These
keys
may
be
used
to
change
the
charts
in
a
normal
or
reverse
order.
Pressing
the
forward
key
before
operating
this
program
displays
the
charts
in
normal
order.
Pressing
the
backward
key
displays
the
charts
in
reverse
order.
During
program
operation,
these
keys
work
for
displaying
the
charts
in
the
order
of
the
program.
15
Before
program
operation
(Forward
charts
in
normal
order)
During
program
operation
(Forward
charts
in
programmed
order)
•
Before
program
operation
(Backward
charts
in
normal
order)
•
During
program
operation
(Backward
charts
in
programmed
order)
5-2.
Remote
Controller
Speaker
Sound
and
Power
Saving
(1)
Speaker
sound
during
operation
of
remote
controller
When
turning
OFF
the
speaker
sound
of
the
remote
controller,
first
turn
OFF
the
power
supply
and
remove
the
upper
cover.
There
are
dip
switches
on
the
printed
circuit
board,
as
shown
in
Fig.
5-21.
Set
the
dip
switch
No.
7
to
“OPEN”
with
the
tip
of
a
ball-point
pen
to
turn
OFF
the
sound.
(Take
care
not
to
touch
other
dip
switches.)
—
Magnified
view
of
dip
switches^
t
Ball-point
pen
Fig.
5-21
(2)
Power
saving
The
illumination
lamp
goes
OFF
automatically
when
no
operation
from
the
remote
controller
is
made
for
about
10
minutes.
Turn
ON
the
lamp
key
to
use
the
instrument.
16
6.
Maintenance
6-1.
Illumination
Lamp
Replacement
(1)
Always
disconnect
the
power
cord
from
the
supply
wall
outlet
before
lamp
replacement.
Loosen
the
set
screws
at
the
front
and
rear
of
the
body
and
lift
the
upper
cover
straight
up
with
both
hands
to
remove.
Loosen
the
set
screw
of
the
lamp
cover
(Fig.
6-1)
and
lift
the
cover
straight
up
to
remove.
As
shown
in
Fig.
6-2,
cover
the
lamp
with
cloth
and
pull
it
out
from
the
socket.
Cover
the
new
lamp
(6V
20W
halogen
lamp)
with
cloth
or
the
vinyl
bag
it
was
packed
in
and
fit
the
lamp
firmly
and
deeply
into
the
socket
as
shown
in
Fig.
6-2.
To
purchase
spare
illumination
lamp,
contact
Nikon
dealer
or
distributor.
(2)
Precautions
for
illumination
lamp
replacement
1
Let
the
lamp
cool
before
replacing
it.
Do
not
touch
other
parts
of
the
equipment.
2
Do
not
hold
the
new
lamp
with
your
bare
fingers.
Fingerprints
may
cause
the
lamp
to
break
while
power
is
turned
ON.
Wipe
off
any
dirt
with
alcohol.
Do
not
wipe
the
lamp
while
it
is
ON
or
hot.
3
For
attachment
or
removal
of
the
lamp
cover,
carefully
lift
it
up
straight
with
both
hands
to
prevent
the
lamp
from
being
broken
by
touching
the
cover.
0,
A
ft
Good
Not
good
Fig.
6-3
17
6-2.
Fuse
Replacement
The
fuse
may
be
blown
if
the
pilot
lamp
and
illumination
lamp
do
not
go
ON
when
the
main
switch
is
turned
ON.
Before
start¬
ing
replacement,
be
sure
to
turn
OFF
the
main
switch
and
disconnect
the
power
cord
from
the
wall
outlet.
To
replace
the
fuse,
first
use
a
single¬
blade
screwdriver
or
the
like
and
release
the
click-locks
on
the
sides
of
the
fuse
box
in
the
rear
of
the
main
body,
as
shown
in
Fig.
6-4.
Then
remove
the
box
together
with
the
fuse.
After
replacement
with
a
new
fuse,
match
the
notch
direc¬
tion
and
push
in
the
fuse
box
firmly
till
it
clicks.
Use
two
fuses
of
1
A/250
V
(short).
Fig.
6-5
6-3.
Remote
Controller
Battery
Replacement
Perform
steps
1
through
3
as
follows.
•
The
dry
cell
may
need
replacing
if
the
chart
does
not
move
or
if
it
moves
slowly
when
one
key
of
the
remote
controller
was
pressed.
Replace
with
two
AA
batteries
available
in
any
store.
Use
of
alkaline
dry
batteries
is
re¬
commended
to
ensure
long
life.
1
Push
the
stop
spring
with
your
fingertip
to
remove
the
cell
cover
in
the
rear
of
remote
controller,
as
shown
in
Fig.
6-6.
2
Insert
the
cells
according
to
the
[+]
and
[-]
marks
in
the
battery
chamber
of
the
remote
controller.
3
Fit
the
cover
as
before.
Battery
cover
\
18
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