Topcon TRC-50EX User manual

N
20˚ 35˚
50˚
TRC - 50EX
RETINAL CAMERA
INSTRUCTION MANUAL
RETINAL CAMERA

1
INTRODUCTION
Thank you for your purchasing the TOPCON TRC-50EX
Retinal Camera.
THIS INSTRUMENT HAS THE FOLLOWING FEATURES:
•This instrument assists the oser in obtaining pictures of exceptional and stable
quality.
•The instrument is easier to use and operate than previous models.
•A wide variety of optional accessories are available for diverse photographic
and imaging purposes.
This manual provides an outline, basic operation, troubleshooting, maintenance and cleaning
methods for the TRC-50EX Retinal Camera.
Please carefully read the “Display for Safe Use” and the “Safety Cautions” before putting this
instrument into operation.
Always keep this manual at hand.
PRECAUTIONS
•Ensure that this instrument is used and stored in a controlled environment under normal
temperature and humidity conditions, and avoid direct exposure to sunlight.
•Never install this instrument on an uneven or loose floor.
•Always check that all cables are correctly connected before use.
•Be sure to ground the instrument for compatibility with high currents. Never disable the
grounding plug of the power cord.
•Use a power supply within the range of ±10% of the rated voltage (50/60 Hz).
•Keep the installation site always clean, and while the instrument is not in operation, turn off
the power switch and use the dust cover.
•To obtain clear images, be sure the objective lens is not smeared with fingerprints and/or
stains.
This symbol is applicable for EU member countries only.
To avoid potential negative consequences for the environment and possibly human
health, this instrument should be disposed of (i) for EU member countries - in
accordance with WEEE (Directive on Waste Electrical and Electronic Equipment),
or (ii) for all other countries, in accordance with local disposal and recycling laws.

2
DISPLAY FOR SAFE USE
In order to encourage the safe use of products and prevent any danger to the operator and
others or damage to properties, important warnings are put on the products and inserted in the
instruction manuals.
We suggest that everyone understand the meaning of the following displays and icons before
reading “Safety Cautions” and text.
Display Meaning
WARNING Ignoring or disregard of this display may lead to the
impending danger of death or serious injury.
CAUTION Ignoring or disregard of this display may lead to personal
injury or physical damage.
Injury refers to hurt, burn, electric shock, etc.
Physical damage refers to extensive damage to buildings or equipments and
furniture.
Icons Meaning
This icon indicates Hazard Alerting (Warning).
Specific content is expressed with words or an icon either
inserted in the icon itself or located close to the icon.
This indicates Prohibition.
Specific content is expressed with words or an icon either
inserted in the icon itself or located close to the icon.
This icon indicates Mandatory Action.
Specific content is expressed with words or an icon either
inserted in the icon itself or located close to the icon.

3
SAFETY CAUTIONS
This instruction manual specifies safety cautions necessary to prevent accidents.
Always observe these precautions and use the instrument correctly.
WARNING
Icons Prevention item Page
• Do not disassemble, remodel or repair this instrument.
Such actions may cause electric shock. If repairing is necessary,
be sure to contact your authorized dealer and ask for repair
services.
17
• Do not remove covers from the bottom, power supply unit and main
body.
Such actions may result in electric shock.
17
• Be careful not to drop the liquid such as mydriatic or fluorescein
onto the main body.
Infiltration of water may lead to a fire or electric shock. 39
•Disconnect the power plug from the outlet before removing a fuse
for replacing.
Removing the fuse cover without disconnecting the power plug, may
result in electric shock.
65
•Be sure to use a properly rated fuse provided in the accessory box.
Use of other than a properly rated fuse may lead to a fire at the time
of a malfunction. 65
•Disconnect the power plug from the outlet before uncovering the
lamphouse cover.
Electric shock may occur if you uncover the lamp house without
disconnecting the power plug.
42
65

4
CAUTION
Icons Prevention Item Page
•Ensure that the illumination lamp is not brighter than necessary.
Excessive intensity may result in patient discomfort.
26
35
39
•Ensure that light brighter than necessary is not used for
photography.
Excessive intensity may result in patient discomfort.
35
39
•Do not install the instrument on a slope or in a unstable place.
The instrument may become unstable, fall or harm people nearby.
17
65
•Avoid insertion of the hands between the power supply unit and the
base.
When the base is moved, the hands may be pinched or injured.
26
35
39
44
•Ensure that nobody’s hands are inserted between the main body
and the lower arm.
When the main body is tilted, the hands may be pinched or injured.
26
35
39
44
•Ensure that nobody’s hands are inserted between the chinrest
support and the lower or upper arm.
* This warning is mostly directed towards the patient.
When the main body is moved, the hands may be pinched or injured.
26
35
39
44
•Do not hold the head strap or chinrest support when transporting
the instrument.
Such action may lead to dropping the instrument and may cause
bodily injuries.
17
•Do not replace the lamp immediately after it burns out.
The lamp unit will still be extremely hot. You may get burnt if you
touch it.
65
•Before changing the lamp, turn off the power switch and disconnect
the power plug from the outlet.
Electric shock may occur.
65
•Do not replace any filters just after the lamp is turned off.
The lamp unit will still be extremely hot. You may get burnt if you
touch it.
42

5
CAUTION
Icons Prevention Item Page
•Before transporting, set the tilting unit down and lock the tilt brake
lever so that the base's up-and-down movement may be at the
minimum.
If transporting without locking the movement, the instrument loses
its balance and you may be injured.
−
•Pay attention to the clearance between the objective lens and the
patient.
When the main body is moved, the objective lens may bump
against the patient’s eye or nose inflicting a minor injury.
26
35
39
44
•Two persons must use the handholds at the bottom when
transporting the instrument.
Single-handed transportation is very dangerous, possibly causing
the one who is carrying to hurt his back or become injured if they
the drop the instrument. Holding other than the bottom may also
pinch the hands and result in dropping the instrument.
17
•Prior to transportation, suppress camera motions by turning the
base fixing lever and the swing arm locking lever.
Transportation without setting these levers may unbalance the
instrument, thereby resulting in dropping the instruments.
17
•Prior to transportation, suppress vertical motions by locking the tilt
brake lever.
Transportation without setting this lever may unbalance the
instrument, thereby resulting in dropping the instrument.
17
•When setting the tilting unit stopper, ensure that the screwdriver is
inserted completely into the hole in the tilting unit.
If incompletely inserted, the screwdriver may come off, causing the
main body to fall off and may result in bodily injuries.
21
•Disconnect the power plug from the outlet before measuring the
power frequency.
Electric shock may otherwise occur. 19
•Ensure that the 35mm camera is installed firmly by fastening the
35mm camera body locking lever.
If installed loose, the camera may fall off, resulting in severe
damage to the unit and possible bodily injury.
26
51
•When installing accessories, secure them firmly by fastening the
accessory locking lever.
If installed loose, the accessories may fall off, leading to possible
bodily injury.
51

6
USAGE AND MAINTENANCE
Purpose
This retinal camera is a precision elecrtrical device for medical use that must be used
under the instructions of a doctor.
User maintenance
Unless specified in this manual, the maintenance work shall be conducted only by a
trained service technician, to ensure the safety and performance of the instrument.
The following maintenance tasks however, may be executed by the customer.
Regarding the maintenance method, review the applicable text in this manual.
Fuse replacement
The primary and secondary fuses for the main body may be replaced by a non-trained
service technician. For details, refer to the applicable text in this manual.
Lamp replacing
Illumination lamp and xenon lamp may be replaced by a non-trained technician. For
details, refer to the applicable text in this manual.
Cleaning of the objective lens
The objective lens may be cleaned by a non-trained technician. For details, refer to
the applicable text in this manual.
ESCAPE CLAUSE
•TOPCON shall not take any responsibility for damage due to fire, earthquakes, actions
by third persons and other accidents, or the negligence and misuse by the user or use
under unusual conditions.
•TOPCON shall not take any responsibility for damage derived from the inability to use
this equipment, such as a loss of business profit and suspension of business.
•TOPCON shall not take any responsibility for damage caused by operations other than
those described in this Instruction Manual.
•Diagnoses made are the responsibility of pertaining doctors and TOPCON shall not take
any responsibility for the results of such diagnoses.

7
WARNING INDICATIONS AND POSITIONS
To ensure safe usage of this equipment, precaution indications are provided.
Abide the following warning instructions. If any of the following labels are missing, please
contact us at the address stated on the back cover.
CAUTION
•To avoid potential injury, do not put your
hand or finger between the power supply
unit and the base when moving the base.
WARNING
•Disconnect the power plug from the
outlet before removing a fuse for
replacing.
Removing the fuse cover without
disconnecting the power plug, may
result in electric shock.
CAUTION
•To avoid electrical shock, do not open
the instrument. Refer all servicing to
only qualified personnel.
WARNING
•Disconnect the power plug from the
outlet before uncovering the lamphouse
cover.
Electric shock may occur if you uncover
the lamphouse without disconnecting
the power plug.
CAUTION
•Do not replace the lamp immediately
after it burns out. The lump unit is still
extremely hot. You may get burnt if
you touch it.
TRC
-
50EX
RETINAL CAMERA
N
20˚ 35˚
50˚
TRC - 50EX
RETINAL CAMERA
CAUTION
•To avoid potential injury during
operation, do not touch the patient's
eyes or nose with the instrument.
WARNING
•Disconnect the power plug from the
outlet before removing a fuse for
replacing.
Removing the fuse cover without
disconnecting the power plug, may
result in electric shock.

8
CONTENTS
INTRODUCTION 1
DISPLAY FOR SAFE USE 2
SAFETY CAUTIONS 3
USAGE AND MAINTENANCE 6
ESCAPE CLAUSE 6
WARNING INDICATIONS AND
POSITIONS 7
STRUCTURE AND NOMENCLATURE
Main Body 9
Control Unit 11
35mm Camera 13
Power Supply Unit 14
Accessories 15
ASSEMBLY
Components 16
Assembling procedure 17
Checking after assembly 19
Tilt balance adjustment 21
Tilt Brake Lever adjustment 23
Cable holder adjustment 24
PREPARATIONS FOR USE
Power saving function 25
BASIC OPERATION
Preparing a 35mm camera 27
Precautions when handling a 35mm
camera 30
Preparations for photography 31
Preparing the patient 32
Flash intensity setting 34
35mm color photography 35
Fluorescein photography 39
OPERATIONS FOR ADDITIONAL
Photography with optional filters 42
Photography using blue filter 43
Stereo photography 44
Recording patient data by ID mode 45
TROUBLE SHOOTING
Countermeasures to be taken in
case of trouble 47
Error code list 50
REFERENCE MATERIAL
Optional accessories 51
Specifications 60
Electromagnetic compatibility 61
MAINTENANCE AND CHECKING
Daily care 65
Cleaning the objective lens 66
Cleaning other lenses (finder, etc.) 66
Changing the lamp 67
Changing the fuses 68
Schedule of expendables and
spare parts 69

9
STRUCTURE AND NOMENCLATURE
STRUCTURE AND NOMENCLATURE
Main Body
N
20˚ 35˚
50˚
TRC - 50EX
RETINAL CAMERA
1Angle changing lever ................50°, 35° or 20° can be selected as an angle of coverage.
2Diopter compensation knob ......Used to compensate the dioptric power of strong myopia and
hyperopia in the patient and also used for ocular anterior
photography.
3Filter switching knob .................Changed for different kinds of photography.
4Illumination diaphragm lever .....When dilation is sufficient, set on N. When dilation is not
sufficient, set the angle to 35° or 20° and set on “x”.
In the case of fluorescein angiography and rough alignment,
set on “y”..
5Focusing knob
6Internal fixation target mount ....The optional internal fixation target can be mounted.
7Astigmatic correction knob........Rotated for obtaining a uniform focus, when taking peripheral
photographs.
8Accessories mount ...................Optional accessories (Polaroid attachments, different relay
lenses) can be mounted here.
9Accessory locking lever
0Lamphouse cover
ASwing arm locking lever
BControl lever .............................Enables traverse and fore-and-aft fine adjustment of the main
body. Vertical adjustment of the main body is also possible by
this lever.
B
A
6
C
0
D
3
4
5
1
9
87 2

10
STRUCTURE AND NOMENCLATURE
TRC
-
50EX
RETINAL CAMERA
CShutter release button...............Xenon lamp flashes upon depressing the shutter release
button.
D35 mm camera body locking lever
EMount for 35 mm camera body
FAlignment illumination point switch
GLower arm
HUpper arm.................................Swings up to 30° to the right and left.
ITilting handle ............................Swings up to 15° upward and 10° downward.
JTilt brake lever ..........................Turned to make tilt free and locked, and for adjusting the brake
force.
KHorizontal index window............Indicates red when the main body is level (tilt 0°).
LFinder
MCable holder
sData plate insertion slot ............The data plate on which patient’s information is written can be
inserted for photographing information together with the retinal
image.
K
M
J
H
G
I
F
s
E
L

11
STRUCTURE AND NOMENCLATURE
Control Unit
NBARRIER switch .... Press the switch to set the barrier filter. Press again to remove the barrier
filter.
OEXCITER switch .... Press this switch to set the excitation filter. Press again to remove the
excitation filter.
PTIME switch ........... The timer starts upon pressing once and stops when pressed a second
time.
QNORMAL knob....... Illumination adjustment for normal color photography.
RFLUO knob ............ Illumination adjustment for fluorescein photography.
SSTEREO lever ....... Tighten the lever and stereo photography is possible by moving the base
right and left.
TID switch ................ Under the ID mode, the switch sets the DATA input mode, and fixes the
input data (numerals) (cancels the DATA input mode).
In the counter mode, pressing this switch clears the counter to “001.”
UUPPER/LOWER selector switch
................. When UPPER is selected, photography by the UPPER set camera is
possible.
When POWER SAVE works, push this switch to resume.
VFlash intensity switch
................. Photography light intensity can be selected in 11 steps. NF means no light
emission from the xenon flash lamp.
Under the ID mode, the switches work as the numeral keys “-, 0 to 9” for
data input.
WDATA switch .......... To photograph the patient physical record, push the switch and let the
xenon lamp flash.
XFLICK switch.......... Switches the fixation target between lighting and flicking.
YFlash correction switches
................. Increases or decreases the preset light intensity. Press the ∆button to
increase it or the ∇button to decrease it. For example, when the preset
light quantity is 36WS, one press of the ∆button changes the setting to a
value between 36WS and 50WS and illuminates both switches (36) and
(50).
ZBase fixing lever .... Lock this lever when photographing.
]
\^ [
Y
V
R
Q
ZWU
S
P
NO
T
X

12
STRUCTURE AND NOMENCLATURE
[FA Filter Setting switch .......With this switch set to ON, fluorescein filter is interlocked at the time
of photographical operation. Interlocking can be canceled by
turning it off. (Photographing is possible using a blue filter.)
\Exposure setting switch .....Set this switch to “1" for manual mode or to ”2" for program mode.
]Data display unit ................Displays data recorded on film (counter, timer, I.D., angle of
coverage and left or right eye or error).
^Dip switches
No. Description
1 Changes the sub mode.
2 Changes the xenon flash delay time.
3 Sets the ID mode.
4 Changes the fluorescein filter interlock mode.
5
6 Unused
7
8 Changes the frequency.
9
10
Data shown on the data display unit
• Counter mode
The displayed data is restored to “001" when the ID switch is pressed.
Press the TIME switch once, and the timer starts in the upper column.
• ID mode
Refer to “Recording Patient Data by ID Mode.”
Counter
Timer
Right or left eye Angle of coverage
Angle of coverage
Right or left eye
Changes the video relay lens mode.

13
STRUCTURE AND NOMENCLATURE
35 mm camera
aBack-cover release lever
bRewinding crank
cRewind switch
dFilm counter
eMount
b
d
a
c
e

14
STRUCTURE AND NOMENCLATURE
Power Supply Unit
N
20˚ 35˚
50˚
TRC - 50EX
RETINAL CAMERA
TRC - 50EX
RETINAL CAMERA
TRC
-
50EX
RETINAL CAMERA
fPower switch
gBody connection cord
hBase connecting cord
iPower cord
jPrimary fuse holder
kSecondary fuse holder
lExternal fixation target
mChinrest adjusting knob
nChinrest
oHeight level marker: Patient’s eye must be
aligned with this marking.
pHead strap
qCONTROL terminal: Used for connection
with IMAGE net.
rDATA terminal: Used for communications
with IMAGE net.
q
p
o
n
l
m
hg
ji
f
r
mk

15
STRUCTURE AND NOMENCLATURE
Accessories
Quantity Quantity
• Accessories case 1
• Chinrest paper 1
• Chinrest paper fastening pins 2
• Fuses 9
(Quantity is changed depending
on the used areas.)
• Data plate 5
• Hexagonal wrench (large) 1
• Hexagonal wrench (small) 1
• Tilt brake lever 1
• Internal Fixation target 1
(This is an option in some areas.)

16
Assembly
ASSEMBLY
Components
N
TRC - 50EX
RETINAL CAMERA
20˚ 35˚ 50˚
TRC
-
50EX
RETINAL CAMERA
Description Quantity Casing
Main body 1 Main body
Power supply unit 1 Power supply unit
Dust cover 1 Main body
Instruction Manual 1 Main body
35mm camera 2 Power supply unit
Fixation target 1 Power supply unit
Phillips screwdriver 1 Main body
Connector cover set screw 3 Main body
Accessories case 1 Power supply unit

17
Assembly
Assembling procedure
When handling the main body and power supply unit, hold them firmly. If dropped or
if your hands and fingers are caught between components, they may cause injury.
• Do not disassemble, remodel or repair this instrument.
Such actions may cause electric shock. If repairing is
necessary, be sure to contact your authorized dealer and ask
for repair services.
• Do not remove covers from the bottom, power supply unit and
main body.
Such actions may result in electric shock.
• Do not install the instrument on a slope or in a unstable place.
The instrument may become unstable, fall or harm people
nearby.
• Do not hold the head strap or chinrest support when trans-
porting the instrument.
Such action may lead to dropping the instrument and may
cause bodily injuries.
• Two persons must use the handholds at the bottom when
transporting the instrument.
Single-handed transportation is very dangerous, possibly caus-
ing the one who is carrying to hurt his back or become injured if
they drop the instrument. Holding other than the bottom may
also pinch the hands and result in dropping the instrument.
• Prior to transportation, suppress camera motions by turning the
base fixing lever and the swing arm locking lever.
Transportation without setting these levers may unbalance the
instrument, thereby resulting in dropping the instrument.
• Prior to transportation, suppress vertical motions by locking the
tilt brake lever.
Transportation without setting this lever may unbalance the
instrument, thereby resulting in dropping the instrument.
CAUTION
WARNING
CAUTION
WARNING
CAUTION
CAUTION
CAUTION

18
Assembly
(1) Remove the power supply unit from its
storage box and place on a table.
• Be careful not to have your fingers pinched.
(2) Set the upper arm fixing knob to the dot
mark position.
(3) Insert the upper arm over the shaft
protruding from the lower arm.
Fasten the screw at the tip of the upper arm,
using the attached hexagonal wrench.
(4) From the punched portion provided on side
face of the power supply unit, take out the
connector (socket).
(5) Connect the connector (socket) to the
connector (plug) of the main body.
(6) Also, connect another connector (plug) to
the connector (socket) provided on the
substrate.
(7) Place the cord back into position without
bending it, and fit the connector cover onto
the side of the power supply unit. Fix the
connector cover with screws.
(8) Mount the external fixation target.
(9) Install a 35 mm camera.
(Refer to “Preparations for Photography” in the
Instruction Manual.)

19
Assembly
Checking after assembly
• Disconnect the power plug from the outlet
before measuring the power frequency.
Electric shocks may otherwise occur.
(1) Checking the primary voltage
Check that input voltage is within the range of
+10% of the rated voltage. For higher input
voltage, a constant-voltage power supply
(commercial product) must be used.
The system may operate erroneously if using the
instrument out of the above range.
(2) Checking the power supply outlet
15A or higher electric current capacity is
required. Make sure that your outlet is
compatible with the three-pin plug of this
instrument. In the event of incompatibility,
consult an electrician and be sure to ground
the instrument.
(3) Checking power frequency
First of all turn the power switch OFF and
disconnect the power cord from the outlet.
Then, check that the No. 8 switch of the dip
switch is set to the position corresponding to
the frequency of your area.
Power frequency is set to 50 Hz at shipping.
Check the frequency of your available
power, and set the No. 8 switch to upper
position for 60 Hz frequency.
Use of the instrument with 50 Hz power
frequency in a 60 Hz area, results in the
insufficient brightness of illumination lamp
and the inability to adjust the optimum light
intensity.
CAUTION
120 V
220/230 V
240 V
50 Hz
60 Hz
OFF
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OFF
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