Still Photography................................................................................ 15
for
Cinematography, CCTV and Polaroid Photography........................ 15
OF
ENDOSCOPIC SYSTEM16
THE
LIGHT
Combination
Fiberscope25
Rigid Scopes26
Use
SOURCE
with
and CCTV
the
Light
Source14
the
Videoscope24
27
27
11
11
12
24
1
2
3
4
5
6
7
8
9MAINTENANCE29
of
9-1Replacement
9-2
9-3
9-4
9-5
ReplacementofFilter·2
Resetting
Cleaning
Periodic Inspection32
Lamps29
the
Circuit Breaker
the
Ventilation Grills
31
31
32
10TROUBLESHOOTING GUIDE33
11
ENDOSCOPIC SYSTEM CHART (EVIS/OES SYSTEMS)35
11-1
11-2
OES
System
EVIS Endoscopic Video
Chart35
Information
System
37
9
10
11
Page 6
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L.1.
1
1.Byuseofthe mode selector, the instrument servesasa possible and universal light source
EVIS
for OES-fiberscopes, Olympus rigid scopes for
color chip
2.ByuseofOES
scope point
3 When using
canbereleased.
4.
Combined
advantages
• Photographs under stable exposure
• Date is visible
• Remote shutter release using a foot switch frees the endoscopist from finger-tip shutter
operation.
• Indicatorsinthe camera's viewfinder predict exposure level before taking photographs and
the exposure level
5.
1.5 times the flash outputofthe maximum illumination intensityofthe light source
available.
6.
Flat switches and display panel
7.Anemergency lamp turnsoninstantly if the Xenon lamp burns out, to provide illumination
bright enough for endoscope withdrawal. A light
the emergency lamp
instead of the Xenon lamp.
system), and for
system,
canbechecked by the transillumination function.
EVIS
100 or
with
OES
canbeoffered.
in
the viewfinder and imprintedonfilm.
is
EVIS
200 System (sequencing system).
EVIS
100 system and
EVIS
200 system, by use of the Foot Switch, the anc'illary equipments
fiberscope, SC16-10 and rigid scope and SC16-10R, the following
can
be takeninshort distances.
given when taking photographs.
can
be easily wiped clean.
is
not installed,isinstalled improperly orisburned out, orislighting
100 System (instantaneous single-plate
EVIS
200 system, the insertion position of the
on
the front panel indicates at a glance if
is
8.
Air feeding pressure
9.
With no scope and even when Xenon lamp illuminates, illumination light automatically dims
to prevent dazzling and the air feeding pump simultaneously stops.
10. Combined
functionated.
with
can
be adjustedinthree levels.
function expansion devices (under development), light source
canbemore
Page 7
]-2
Main Specifications
Illumination
Visual.-observatjon
•Videoscope
• Cine-
Still
Photography
TV
F~edlng
Lamp
l-------
Lamp life
Ignition
' Light output adjustment
1-----"--
Cooling
Color
conversion
Emergency lamp
I
Emergency lamp life
-
-
-~~
Adjustment method (Automatic)
Auto exposure sensitivity Setting (Auto)
Exposure
--
Exposure light
control
amount
Shutter speed
Shortest recycling time
Auto
exposure
Manual exposure sensitivity setting
Pump pressure
sensitivity
(at
output socketl
setting
_._---~~
m
"
~
C
!
Xenon short-arc lamp (ozone-free) 300W
I
Approx. 300 hours on continuous
!
LSwitching
Light-path diaphragm control
I
Forced-air
Filter-2isreplaceable.
Halogen lamp (without mirror) 24V 150W
-
-
Approx. 500 hours.
--
regu~at_or
cooling
use'
(over 20,000 flashes)
-----
--------------
-----
----
----
---------
Servodiaphragm method
17
steps: 1 step 1/4EV(F;
I
I
,
Exposure decreases from INDEX NUMBER
I
Auto/Manual; time controlbylight source shutter
Flash
output (approx. 1.5 times visual light output)
1/4
to 1/100 sec.
1
sec.
i
_.
9 steps: 1 step
to
"5"
(or
10 steps: 1 step
~
1/2
from "+2" to "-2") with
~
112
full admission)
"Full"to"5".
---_._--
-
----------------
EV.
Exposure decreases from INDEX
1/2
EV
per step.
EV,
except for 1EVbetween
-------
"F"
(Fulll
---
-----------------------
-------
"1"
----
-----------
and"1".
--------
----
:0
m
(j)
::>
z
o
S
~
z
(j)
-0
m
Q
"
(i
~
o
z
(j)
Linear type pump
High:less than 0.5
Medium: more than 1.6 £Imin. (at 0.09 kgf/cm
Low:
At
"HIGH"
source than OES/EVIS.
i
0.075 - 0.15 kgf/cm'
the pressureisequivalent to that avai!able by the other light
desired, set the exposure control switch to 'MANAL',
SC16-4!
with
the A10-M2 IOES scope) only.
butifthe
Underexposures
OM-1N/SC35-l
INDEX
3
pictures are
must
Camera
SC-P--1-0~~-S~C-16-10R[SC16-3~/3R2
If------'-----I
*OM-1N/SC35:
**SC16-3R/3R2:
overexposed,
be corrected on
and
set the sensitivity
ADJUST
I
S~t
S~t
correcttothe
oI
sync contact to X
sync contact to
the
plus
INDEX**
3
and
X.
1/4
s~c.
Page 27
Illuminated
[Settingofexposure
condition]
sensitivity
Change the distance.
.ry5-60mm
[Confirmationofexposure
level]
• Set ADJUST (compensation) display to
• Change the distance between the fiberscope's or the rigid scope's distal tip and a white
of
piece
changesasillustrated below.
paper. Make sure the display on the front panelaswellasin
o
UnderexposureSlightly under
FAR
«~=============;:?>
Distance between endoscope's distal end
*
With
dark objectsorsmall-calibre
sometimes
failtoturn
* In case
willbeilluminated
*
Above
setting, and are
the
compensation
not
on.
the
compensation
displays
turn
on. Conversely, in a
value
with
camera's
represent
not
signal blinks in the camera's viewfinder),
only
applicable
"0"bypressing the Exposure Sensitivity Selector.
the camera's viewfinder
o
Correct
other
viewfinder.
the
exposure
when
Slightly over
and
(low
flash level) fiberscope, A
bright
endoscopy
than
"0", the
levels at
compensation
compensation
ADJUST
has been
Overexposure
NEAR
the object
room,Vindicator
signal (orange)
"0" (no
made
indicator
compensation)
(in
which
may
may
case
."
m
Q
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--1
m
'5:
z
(f)
Page 28
Cine
camera
CD
Mount the cine camera orTVcamera onto the endoscope eyepiece section.
(2)
Using the AUTO/MANUAL Brightness Selector, set the light source to AUTO: CINE.TV LEDs
turn on.
* On
MANUAL
automatically
mode,
the
light
respondingtothe
output
intensity
changsinthe
is kept
object
constant
distance.
and does
not
change
==:::!ILl;
[MountingofTV
~L=ame"
I~
camera]
I
2
•
w
f-
(j)
>-
(j)
U
a..
o
U
(j)
o
o
z
w
CL
o
z
o
B
w
a..
(j)
Z
ConnectionofCine
to
the
~
adapter
camera
@ Move the endoscope distal end away
distal end from the object, the stronger the light transmitted through the distal end becomes.
Next, keeping the object distance constant, change the exposure level sequentially from
to
"5":
the light Intensity should decrease.
* In
electrosurgery,
noise. For
taking
incorrect
photographs,
fom
the
object
exposure
may
sometimes
set several Cine and TV
Make sure that the farther away the
result
duetohigh
indicestotake
frequency
photographs.
"1"
Increase
the
distance
gradually.
~5_60mm
[Confirmationofbrightnessl
Page 29
7
This section outlines a genral procedure for endoscopy. The endoscopist should carefully
evaluate the clinical factors involved
and
decide the technical details of the procedure.
7-1
Read
use.
Use
the
zn
instruction
Combination with the Videoscope
D
manual before
Obs~lrvati(m
Set the mode selector
desired brightness level
The CINE·TVsettingonthe light sourceisthe standard level. Adjustasnecessary. If the
is
image
too dark, use a smaller number setting. If too bright, use a larger number.
COlndition
to
1~6~lor
with
Video System
EVIS
100
EVIS
200All types
BAir/Wrater Flaeding
CD
Set air
flowasdesired
*The
air
pressure canbeadjusted in three levels,
® Feed air and water
*The
*
built-in
source.
At
"MED"or"LOW",
with
by
operating the air/water valveonthe videoscope.
air
pump
will
water
DTrarlSillulnination
CD
When using the transillumination function to verify the insertion locationofthe distal end of
the scope, the illumination becomes temporarily brighter, but
monitor image becomes overexposed
(2)
The
illumination returnstothe original level nine seconds after pressing the switch.
* Depending on
may
notbeverified.
* Jllumination level
MAN.
mode.
* To
prevent
the
thermal
observation
control
injury,
~.
The light level control becomes
the light level adjustment switches.
Fiberscope
All types
iI
the
AIR
Regulator switch. (Normally to "HIGH")
dependingonpatient
not
operate unless a
feeding
is designated
use
(lens wash) becomes less effective,
in
black and white.
location and
this
functionaslittleaspossible.
videoscope
techniques
automaticallytobe changedto'MAX'
"AUTO".
Index
3
3
is connectedtothe
with
EVIS
200 system the
in use, the insertion location
Set the
condition.
light
o
m
[The
endoscope
The
W
in
DJ~
[Setting
is
air
feeding
pump
does
not
,;;,
~f:I'~IJi;
~::
I @,,,, @
the
_~'~I~!'~~
..
",,,.
[ffiJ"'"
transillumination
,ffi
l~
!
function]
"
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ei
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(")
m
Page 30
7-2
With Fiberscopoe
Manual
setting
II
Set the mode selector to
fJ
AdjIJstin!~
Set the AUTO/MANUAL Brightness Selector to MANUAL and adjust light output to the
illumination level suitable for visual observation using the Brightness Control.
*
Always
wellasto
except
use
the
protect
for
Cinematory
Bri!JhtnElSS
~
minimum
your
eyes. Set
.
(VISUJlILI
necessary
the
and TV visual
light
leveltoavoid
AUTO/MANUAL
observation.
thermal
Brightness
mucosal
SelectortoMANUAL
damage
as
w
'-'
a:
::>
o
(/)
f-
I
:::J
"
w
I
f-
Z
"
~
a:
w
a.
o
[Adjusting
--
.",
~
I @...
[Setting
@"
the
(j) Set air
*
The
ClJ
Feed air and
* The
source.
*
At
CD
Set conditions based on the instruction manual for photo documentation equipment to
used.
ell
Mount
button
* Disconnect
brightness]
•.•
,ill-
.......
J~:r,'i~
'8""
8
ole_
'0
~
-iiiJ'-i"'~mo!C5
air
"i
;'6~
,
"/r=
;-',
••
~
pressure]
':°
0
tv,l tv!'''''
O'§[Ju
feeding
28).
* Still
flowasdesired
air
pressure can be
water
built-in
"MED"or"LOW",
a film-loaded camera onto the endoscope eyepiece section and press the release
to
take photographs.
the
Otherwise,
photography
with
the AIR Regulator switch. (Normallyto"HIGH")
adjustedinthree
by operating the air/water valve on the fiberscope.
air
pump
will
not
operate
water
feeding
rigid
scope's
the
underexposure
cannot
camera
be taken
with
levels,
unless a
(lens
wash)
connector
may
result.
OSF and OGF Fiberscopes.
dependingonpatient
fiberscope
becomes
from
the
condition.
is·
connectedtothe
less
effective.
camera cord (EC-26,27or
light
be
Page 31
7.3 With Rigid Scopes
SettingtoMANUAL
[MANUAL
setting
Camera cord
[Connecting
for
visual observation]
the
camera
cordI
D
For
observation, set the Mode selector
CD
Set the AUTO/MANUAL Brightness Selector to MANUAL.
Q)
Adjust light output to a comfortable level of Illumination
*
Always
weI! astoprotect
CD
Connect one endofthe camera cord IEC-26,27or
scope and connect another endofthe cord to the photographic equipment for the rigid
scope.
Q)
For
Selector
use
the
minimum
your
automatic exposure,
and
set the Exposure Sensitivity Selector to the INDEXastabulated:
necessary
eyes.
set
the light sourcetoAUTO using the AUTO/MANUAL Exposure
Film
Camera
1640-0
SC16-3R/3R2
SCt6-10R
*
Index
"3"orcompensation
conditions.
*
With
the35mm
*
With
the
takenbymanual
@ For manual exposure, set the light source
desired.
INDEX
3
film,
SM-R adapter,
exposure. As
No.
Compensation
"0" are
use "2"
the
OM-1N
to
1610-0
0
the
for
ISO/ASA 200
cannot
the
camera
~
.
uSing
the Brightness Control sWitch.
light
leveltoavoid
28)tothe camera connector for the rigid
EL-135
INDEX
3
standard
to
setting.
film
make auto exposure and picture
cord,
use
MANUAL
thermal
X •FPcontact
X
X
Adjust
speed.
the
EC-27.
and
set the exposure index
mucosal
Shutter speed
1/4 sec.
index
depending
damage
must
on
be
as
as
0
-u
m
:ll
»
::!
z
Q
--i
I
m
c::
Q
I
--i
CfJ
0
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Page 32
u.J
U
::J
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l-
I
(!J
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u.J
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u.J
'"
a..
o
7-4 Cinematography
!SelectionofObservation
Mode]
SettoAUTO
[Brightness
control]
\-J
and
ccrv
D
For visual observation, set the Mode Selector
fJ Adjuistingi Briglhtnes;s (CIIIIE AIIiD
Set the AUTO/MANUAL Brightness SelectortoAUTO.
DStill Phot,ograp,hy
[Cinematography]
Light source
Fiberscope
Rigid
scope
*
When
it
*The
[CCTV]
Camera
OTV-F2
OTV-S2
* To
MANUAL
TV
maximum
*
Always
using
OES
!
I 0
ES
type
using
to
appropriate
index
numbers
I
OES
prevent
camera
thermal
Brightness
from
brightness)assoonasthe
connect
OTV-ForOTV-S,
Adapter
A1O-Cl
Al0-C2
AlO-C3
MC-R44
MC-R58
MC-R44orMC-R58, set brightness
brightness
are
standard
Fiberscope
Fiberscope
Rigid scope
mucosal
SelectortoMANUAL
the
fiberscope,
the
light
refertotheir
CINE.
Index
3Standard
-
level.
setting.
..
[Adapter
i
~
....~..!
r1R-T2
,AR-TF2
damageaswellasto
because
control
cable IMB-608),
to
~
.
TV
Development
Standard
control
Adjust
I
Index
switchto"Manual"toadjust
index
dependingonconditions.
3
i
3
I
protect
before
the
cameraisdisconnected.
instruction
light
path
manuals
disconnecting
shutter
when
before
your
using
Filming
speed
Ips
24
Ips
24
eyes,
the
fully
opens
the
operation.
i
ISO/ASA 160
I
ISO/ASA 160
set
the
cine
camera
(providing
OTV-S2.
Film
Daylight
Daylight
AUTO/
or
When
7·SAfter
Use
Turn
off
*
Disconnect
be used
the Power Switch.
the
power
foralong
period.
cord
from
theACwall
outletifthe
light
sourceisnot
going
to
Page 33
8
1_8_-1_C_a_~_e_a_ifi_te_r_U_s_e
CD
Cleaning
I·
8-2 Storage
the
light
source
Disconnect the endoscope
cord
from
the hospital grade receptacle (wall mains outlet),
* Do
not
apply
excess
output
@ Lightly wipe
gauze with disinfectant ethanol
The front panel can be also disinfected.
@ For disinfection, wipe
glutaraldehyde solution.
*
Avoid
*
To
*
Ifaglutaraldehyde
all residue.
* Surfaces
CD
Wind the
@ Place the light source on a stable surface
* Do
socket.
all
surfaces using a soft cloth or gauze sponge. If dirt persists, moisten the
touching
prevent
not
scratches,donot
mustbethoroughy
power
cord around
storeinthe
the
and
water container
force
when
disconnecting
and
wipe
again.
with
a gauze sponge moistened
electrical contacts and connectors:
use
hardorabrasive
solution
upright
is used,
dry
the
hangers on the rearofthe light source.
position,asit
wipe
before use,
in
from
the light source. Unplug
the
wiping
again
with
the horizontal position.
may
topple.
light
guide
connector
with
disinfectant ethanol or
poor
contact
material.
disinfectant
ethanoltoremove
will
the
from
result.
::::======================:J
power
the
2%
® Put on the vinyl dust cover.
"*
Storage area
from
"*
Do
not
irrationally.
* Do
not
water
mustbemaintainedatnormal
splashes.
apply
excessive forcetoeach cordbybending,
give
heavy
blows
and impacts.
temperature
pUlling,
and
humidity,
twisting
and
and
away
pressing
Avoid
and
good
Do
direct
forconneetor
not
wet
Do
not
putinthe
high
temperature,
sunligh.
parts}
the
output
socket.
!JlJ
"ijJ I
°0
;~,
upright
position.
high
humidity
n
»
:xl
m
»
z
o
if)
-1
o
:xl
»
G)
m
Putonthe
vinyl
cover.
Do
not
strikeordrop.
Page 34
9
I
9~1
Replacement
of
Lamps
LlJ
U
Z
«
z
LlJ
f-
Z
<i'
:;;
Ell
Clamping
Hexagon
Heat
sink
~,
rr'-"=oJ<
knobs®
Lamp
wrench
®
Heat sink ®
Guide
Heat
access
Hexagon
wrench
pin
Pin
compound
Clamping
knobs @
cover
key
o Replacemlmt of Xenon lan1p
• Approved lamp: Optionally available from Olympus service center.
to
• Refer
• Approved lamp is MD-631
eD
Turn
*
@ Open the lamp access cover.
® After allowing sufficient time for the lamp and heat sinks to
knobs ® and @ (front panel side, 2
knobs
® Take out the lamp,
@ Loosen bolts (lamp's G side or heat sink
® Loosen snap at heat sink ® and pull out the lamp.
(])
Take
® Using your finger, apply supplied heat compound (for better heat conductionl evenly and
thickly over the entire circumference of the left-hand flange (see lamp sketch: indicated by
hatched lines,
as
*
*
® Apply heat compound to the right-hand endface of the lamp (hatched
same manner
with
*
* Do
@)
Holding the surfaces of heat sinks
close the snap at heat sink
the guide pin fitting into the guide pin hole of heat
(a)
*
*
the lamp replacement manual attached to spare lamps.
OFF
the power switch.
Be
certaintounplug
(9)
(2
pcs.1
the
new
lamp out of its container.
(Yl064(S)
the
with
heat sinks ( ® and @ I attached.
I.
power
cord
from
Take
out the hexagon wrench.
pcs.1
by turning counterclockwise, and then clamping
.@
theACwall
side, 3 pes.) and remove heat sink
8side or exit light side). Then, insert the lamp
farasit will go.
Wipe
off
heat
compound
Be
carefultothe
the wrench.
Be
certain
the
lamp
material.
ingorexplosionofthe
lamp.
and
Be
Be
tightened,
plosion.
Unremoved
not
touch
(9)
firmly.
certaintoplace
suretotighten
lamp
as
above. Then, fit heat sink
nottosmear
surfaceorextruding
the
lamp's
the
the
lamp
stuck and
handlinginordertoavoid
applyanew
(6)
the
finger
the
exit
clamping
does
lamp.
(~)
lamp's
glass surface.
. Insert lamp
light
not
glass surface.
from
the
marksorheat
(a)
and
(§)
with
side facing
knobs and
turnonwell,
over the lamp ( G sidel. Tighten bolts firmly
lamp
compound
Finger
, make sure that they are parallel and then
toward
the
may
outlet.
be
cooled, loosen clamping
(tV.
{-8
side} into heat sink
heat
compound.
the
dangeroflamp
Wipe
off
heat
with
a clean,
may
cause
marks
may
cause
attached heat sinks into lamp house
sink@
snap. Unless
have
the
short
and
tighten clamping knobs
front
panel.
the
life and
explosion.
area,
G sidel
compound
soft
clothorsimilar
peelingofthe
explosionofthe
clamping
may
knobs
have
stuck,
in
the
on
coat-
with
was
its ex-
Do
not
attach
stuck
on
the
rP
AJwaystighten
ing
knobs
Donottouch
glass
your
the: clamp.,
firmly.
heat
lamp
glass.
surfacevirith
hand
directly.
compound
the
lamp
Page 35
e
/
~
m?
~
-
[[[]S
~o
Lamp
~
f-d
~
life
~
meter
® Put the wrench back into the lamp house. Close the lamp cover, and reposition the light
with
source
*
The
@ Replace the lamp life meter.
one.
the top surface facing upward.
light
source does
not
function
Pull
unless
the
cover
is closed
out the old one from the light source, and pushinthe
tightly.
new
fJReplaCllnlentc)f Hallogen
• Approved lamp: UshioJX24-150/0L or
Filter disk
~Ogenlamp
Lamp
cover
Filter disk
.1
,
=-
CD
Turn
ON
the power switch.
Q)
Press the filter switch to indicate
* Make
*
* The
® Turn
* Be
@ Open the lamp access cover. After allowing sufficient time for the halogen lamp to be
cooled,
* Do
sure
The
emergency
lamp
foritto
OFF
suretounplug
pUll
not
® Insert the
* The
* Do
*
lamp
not
lamp.
During
not
cause any
® Close the lamp access cover.
*The
• As
the
light
allisdone, turnonthe power switch and select the next filtertobe planned. Otherwise,
filter may be set to the filter-2 autornatically.
Philips® Type 7158 (24V 150W)
"FILTER2"illuminated up.
the
filter-2
indicatorisilluminatedonthe
lamp
cannot
lights
on and
be cooled
the power switch.
out the lamp from the
touch
new
must
touch
replacement
source does
down.
the
the
mirror
lamp fully into the socket.
not
be inclined;
the
lamp
the
malfunction.
not
be replaced
get
very
power
cord
attachedtothe
surface.
filter
disk
function
~(NeWI
IEm(~~gencyILllmp
front
panel.
when
hot. Handle
from
socket
otherwise
Unremoved
may
unless
the
filter
maximum
rotate
the
the
socket.
finger
turning
disk.
when
cover is closed
off
the
filter-2
lamp
after
allowing
light
outputisnot
marks
may
cause
touchedbyfingers,
tightly.
indicators.
sufficient
available.
damagetothe
which
time
does
Do
not
directly.
touch
nElw
lamp'lliithhand
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Page 36
w
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I 9-2 Replacement
Lamp
access
cover
Filter
)
disk
of
Filter-2
*
Consult
CD
Turn ON the
(2)
Make sure neither the filter-l nor filter-2 indicatorisilluminated.
*
If
either
® Turn OFF
@ Open the lamp access cover.
*
@
Pullout
the
Always
the fllter-2
® Fit in and push the
*
During
does
(/) Close the lamp access cover tightly.
* The
filter
not
light
I 9-3 Resetting the Circuit Breaker
CD
If the light source failstooperate upon turning the
to the OFF position. Ensure the
check the Circuit Breaker
Press
circuit
breaker.
depress until it stops
(?)
Turn
ON the
power
switch and contact your Olympus representative or nearest Olympus office.
your
Olympus
power
switch
and
oneisilluminated,
power switch.
unplug
the
power
mount
frame from the filter disk.
new
filter-2
replacement
cause
any
malfunction.
source
power
does
not
on
with
a click.
switch. If the light source still does not operate, immediately turn
representativeasto
set
the
Mode
putitoffbypressing
cord
from
mount
frame against the filter disk until itisheldinplace.
the
filter
disk
function
power
the rear panelofthe light source. If it IS popped up {tripped!,
unless
cordispluggedinthe hospital grade receptacle. Then
the
the
Selector
socket.
may
rotate
the
power
filter
required.
to[OESJ
or
~.
the
corresponding
when
touchedbyfingers,
lamp
access
cover
switchtothe ON position, turn it
filter
is closed
switch.
which
tightly.
off
the
Ell
Do
not
tamper.
Page 37
9-4 Cleaning the Ventilation Grills
If dust
and
dirt
have
collectedonthe ventilation grills, clean using a vacuum cleaner.
19-5
PeriodicInspection
Periodically inspect the light source following the procedureinSection 6 INSPECTION.
*
If
any
irregularityorabnormalityISsuspected,
* Repair
attemptedbynon-Olympus
mustbemadebyan authorized
service personnel.
contact
Olympus
your
service
Olympus
center, and
representative.
should
not
be
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light source
No light
Symptom
output
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<.9
too
Endoscope cannot
nected
Emergency lamp indicator
is
Exposure level indicators
are
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ro
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i:5
viewistoo
bright.
to
light source.
illuminated.
not
lighted.
--
is
not working.
be
dark or
con-
Possible
Power
cordisnot connected.
switchisnot
Power
Open circuit breaker.Reset circuit breaker.
Lamp access cover is not tightly closed.
Light source lampisnot