TRC-50 IX Instruction Manual March 2000

Instruction Manual

102 Pages

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File Size: 1.52 MB

File Name: trc-50_ix_instruction_manual.pdf

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Page 1

ENGLISH

INSTRUCTION MANUAL

35 20

TRC-50IX RETINAL CAMERA

S N IA

RETINAL CAMERA

TRC-50 IX

Copyrights and trademarks TRC-50 IX is a trademark of the TOPCON Corporation. © TOPCON 2000

INTRODUCTION

Thank you very much for purchasing the TOPCON TRC-50 IX Retinal Camera. This Instruction Manual gives a description of the TOPCON TRC-50 IX. This includes its main features and basic operation, troubleshooting and the checking, maintenance and cleaning of this instrument. Please read the section Displays for safe use on page v and the section Safety precautions on page vi carefully before the instrument is put into operation. To get the best use from this instrument, read these instructions carefully and place this manual in a convenient location for future reference.

Retinal Camera TRC-50 IX

Precautions

This Retinal Camera is a piece of precision equipment, which needs to be used and kept in places under normal conditions regarding temperature and humidity. Do not expose the instrument to direct sunlight. To ensure best use, install the instrument on a level floor, free from any vibration. Always check that all cables are plugged in correctly before use. WARNING: For your own safety always make sure the instrument is correctly grounded 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 of AC 100V ±10% (50/60 Hz). Make sure that no fingerprints or foreign matter remain on the objective lens. TOPCON is not responsible for any modification caused by disassembly or adjustments made by unauthorized dealers or persons. If any trouble occurs with your instrument or its accessories, first refer to the troubleshooting guide in this manual and carry out the checks listed there. If nothing is found during your check, then contact your authorised dealer or TOPCON to service it. Always turn the power source off and place the dust cover on the instrument when it is not in operation.

Selecting externally connected equipment The TOPCON TRC-50 IX complies with the CE marking.

Before connecting a personal computer, image recorder, image printer, TV camera, or monitor to the TOPCON product, make sure that such external equipment is in compliance with the CE marking.

Introduction

Displays for safe use Important warnings are placed on the products and inserted in the instruction manuals, in order to encourage the safe use of products and prevent any danger to the operator and others or damage to existing facilities. We advise that everyone understands the meaning of the following displays and icons before reading the "Safety precautions" and text.

Meaning of displays

Display

Meaning

Ignoring or disregarding this display may result in serious injury or lead to life-threatening situations. WARNING

Ignoring or disregarding this display may lead to personal injury or severe damage to the instrument or facilities. PRECAUTIONS

Potential injury includes wounds, burns, electric shocks, etc. Damage to facilities refers to extensive damage to buildings, equipment and furniture.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

Meaning of icons

Icons

Meaning This indicates Mandatory Action. Specific content is expressed with words or an image, located close to the icon. This icon indicates a Hazard Alert (Warning). Specific content is expressed with words or an image, located close to the icon. This indicates Prohibition. Specific content is expressed with words or an image, located close to the icon.

Safety precautions This instruction manual specifies safety precautions necessary to prevent accidents. Always observe these precautions and use the instrument correctly.

Introduction

DANGER Icons

Prevention item

Page

After fluorescein is injected, ensure that the patient is not suffering from an allergic reaction or shock. Fluorescein may have an allergic reaction or shock as side-effects that can, if serious enough, result in death. If there are signs of an allergic reaction or shock, stop photographic operation immediately and give appropriate first-aid treatment.

We suggest that you check for any side effects of fluorescein, by performing a preliminary test. Fluorescein is capable of producing lethal side-effects.

Check for side-effects of mydriatic drops. Mydriatic drops may lead to severe side-effects.

43 51 56

WARNING Icons

Prevention item

Page

Do not disassemble, remodel or repair this instrument. Such actions may cause electric shock. If repairs need to be done, you must contact your authorised dealer to have these carried out.

Do not remove the covers from the bottom, power supply unit and main body. Such actions may result in an electric shock.

Keep this instrument away from water or other liquids. A fire or electric shock may otherwise occur.

n.a.

Do not put filled glasses or containers in the vicinity. Infiltration of water may lead to a fire or electric shock.

INSTRUCTION MANUAL

vii

Retinal Camera TRC-50 IX

WARNING Icons

Prevention item

Page

Do not insert or drop anything metal into the ventilation holes or openings. Such actions may result in an electric shock.

n.a.

Connect the power plug to a grounded three-pin AC outlet. Outlets which can not be grounded can lead to a shortcircuit which, in turn can cause a fire or an electric shock.

Disconnect the power plug from the outlet before removing a fuse in order to replace it. Removing the fuse cover without disconnecting the power plug, may result in an electric shock.

Also avoid connecting the power plug to the outlet with the fuse uncovered.

Disconnect the power plug from the outlet before uncovering the lamp house cover. An electric shock may occur if you uncover the lamp house without disconnecting the power plug. Also ensure that the power plug is not connected to the outlet while the lamp house is uncovered.

Disconnect the power plug from the outlet before assembling the instrument. An electric shock may otherwise occur. Do not connect the power plug to the outlet while the instrument is being assembled.

viii

33 65 77

n.a.

Introduction

WARNING Icons

Prevention item

Page

Be sure to use a properly rated fuse, provided in the accessory box. Use of a fuse different to the properly rated fuse may lead to a fire if and when a malfunction occurs.

In the event of an impending emergency, visible smoke for example, turn off the power switch immediately and disconnect the power plug from the outlet. Continued use in spite of such conditions, may cause a fire. Contact your authorised dealer, for repairs and service.

n.a.

CAUTION Icons

Prevention item

Ensure that the illumination lamp is not brighter than necessary. Excessive intensity may result in discomfort to the patient. Ensure that the light used for photography is not brighter than necessary. Excessive intensity may result in discomfort to the patient.

Page

43 51 56

51 56

Do not connect or disconnect the power plug with wet hands. Such actions may cause an electric shock.

n.a.

Disconnect the power plug from the outlet before measuring the power frequency. An electric shock may otherwise occur.

Avoid placing your hands between the power supply unit and the base. If the base is moved, the hands may get caught in between and injured.

INSTRUCTION MANUAL

43 51 56

Retinal Camera TRC-50 IX

CAUTION Icons

Prevention item

Ensure that nobody’s hands are placed between the main body and the lower arm of the instrument. If the main body is tilted, your hands may get caught in between and be pinched and injured. Ensure that nobody’s hands are placed between the chin rest support and the lower or upper arm of the instrument. This warning is primarily aimed at the patient. When the main body is moved, the hands may get caught in between and be pinched and injured.

Page

43 51 56

Do not hold the head strap or chin rest support when transporting the instrument. Such an action may lead to dropping the instrument and can cause bodily harm.

Do not replace the lamp immediately after it goes. The lamp unit will still be extremely hot. You may get burned if you touch it.

Do not replace any filters directly after the lamp is turned off. The lamp unit will still be extremely hot. You may get burned if you touch it.

Pay close attention to the clearance between the objective lens and the patient. If the main body is moved, the objective lens may bump against the patient’s eye or nose, inflicting a minor injury. Ensure that the instrument is transported by two persons, both holding the bottom of the instrument. Single-handed transportation is very dangerous, possibly causing the person carrying the instrument to hurt his back or get injured if the instrument is dropped. Holding a part of the instrument other than the bottom, your hands may get caught (and pinched) which could result in the instrument being dropped.

43 51 56

Introduction

CAUTION Icons

Prevention item

Do not install the instrument on a slope or on an uneven surface. The instrument may become unstable, topple over and harm people nearby.

Page

33 67 73

Prior to transportation of the instrument, suppress the possible camera motions by turning the base fixing lever and the swing arm locking lever. Transportation without setting and tightening these levers may unbalance the instrument, thereby resulting in it being dropped.

Prior to transportation of the instrument, suppress the vertical motions by locking the tilting unit brake lever. Transportation without setting or locking this lever may unbalance the instrument, thereby resulting in it being dropped.

When setting the tilting unit stopper, ensure that the screwdriver is fully inserted into the hole in the tilting unit. If not fully inserted, the screwdriver may fall out, causing the main body to fall off which could cause an accident.

Ensure that the 35 mm camera is installed firmly, by fastening the 35 mm camera body locking lever. If installed too loosely, the camera may fall off, resulting in severe damage to the unit or injure somebody. When installing accessories, secure them firmly by fastening the accessory locking lever. If installed too loosely, the accessories may fall off, resulting in severe damage to the accessories or injure somebody.

INSTRUCTION MANUAL

44 82

Retinal Camera TRC-50 IX

Operation and maintenance Purpose This retinal camera is a piece of precision electrical equipment for medical use, which must be used according to a doctor’s instructions.

User maintenance To ensure the safety and performance of the instrument, unless otherwise specified in this manual, the maintenance should only be carried out by a trained service technician. The following maintenance tasks, however, can be performed by the user. We refer you to the applicable text in this manual, with regard to the maintenance method.

xii

Fuse replacement

The primary and secondary fuses for the main body can be replaced by a non-trained service technician. For details, we refer you to the applicable text in this manual.

Lamp replacement

The illumination lamp and xenon lamp can be replaced by a non-trained technician. For details, we refer you to the applicable text in this manual.

Cleaning of the objective lens

The objective lens can be cleaned by a non-trained technician. For details, we refer you to the applicable text in this manual.

Introduction

TOPCON instruments general statements

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 resulting 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. The diagnoses that are made are the responsibility of relevant doctors, and TOPCON shall not take any responsibility for the results of such diagnoses.

Warning indications and positions To ensure safe operation of this equipment, warning indications are provided. Adhere to the following warning instructions.

INSTRUCTION MANUAL

xiii

Retinal Camera TRC-50 IX

PRECAUTIONS Observe the following safety precautions when operating the main body • Make sure that your fingers do not get caught between any movable parts.

TRC-50IX RETINAL CAMERA

• Make sure that the instrument does not bump against the patient’s eye or nose.

• When replacing the fuse, turn off the power switch and unplug the power cord in advance to prevent an electric shock. • Use only a properly rated fuse.

PRECAUTIONS • Before replacing the lamp unit, turn off the power switch to prevent an electric shock. 35 20

TRC-50IX RETINAL CAMERA

S N IA

• Avoid replacing the lamp unit directly after the lamp is turned off, because it is still hot enough to cause a burn. • Disconnect the power plug from the outlet before uncovering the lamp house cover. An electric shock may occur if you uncover the lamp house without disconnecting the power plug.

• When replacing the fuse, turn off the power switch and unplug the power cord in advance to prevent an electric shock. • Use only a properly rated fuse.

PRECAUTIONS • Do not remove this cover. Such an action leads to unnecessary risks.

xiv

Contents

INTRODUCTION Precautions

Selecting externally connected equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Displays for safe use Meaning of displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety precautions

Operation and maintenance

xii

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . User maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xii xii

TOPCON instruments general statements

xiii

Warning indications and positions

xiii

COMPONENTS 1.1

Main Body

1.2

Control Unit

1.3

35 mm camera

1.4

Power Supply Unit

1.5

Assembly components

1.5.1

Power supply unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Retinal Camera TRC-50 IX

ASSEMBLY 2.1

Assembly procedure

2.2

Checking after assembly

2.3

Tilting unit balance adjustment

2.4

Tilting Brake Lever adjustment

2.5

Cable holder adjustment

2.6

Adjustment of horizontal balance

2.7

Preparations for use

2.7.1

BASIC OPERATION 3.1 3.1.1

Preparing a 35 mm camera

Film rewinding and unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.2

Precautions when handling a 35 mm camera

3.3

Preparing the patient

3.4

35 mm colour photography

3.5

Fluorescein photography

3.6

Indocyanine green (ICG) angiography

3.7

Flash intensity setup

OPERATIONS FOR ADDITIONAL USES 4.1

Photography with optional filters

4.1.1

Connecting the exclusive cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

4.1.2

Photography method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

4.2

Stereo photography

4.3

Recording patient data by ID mode

4.3.1

4.4

xvi

Power-saving function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Setting up the ID mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Recording patient data (ID mode)

MAINTENANCE AND CHECKS 5.1

Daily care

5.2

Cleaning the objective lens

5.3

Changing the lamp

5.3.1

Changing the lamp for observation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

5.3.2

Changing the xenon lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Contents

5.4

Changing the fuses

5.5

List of expendables and spare parts

5.6

Contacting TOPCON

OPTIONAL ACCESSORIES 6.0.1

Accessory mounting/dismounting methods (for Polaroid attachment) . . . . . . . . 80

6.0.2

Accessory lens cleaning methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

6.1

6.1.1

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6.1.2

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6.1.3

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6.2

1x Relay Lens Adapter OR-1

6.2.1

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6.2.2

Photography method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6.2.3

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6.3

Video Relay Lens Adapter

6.3.1

Precautions and suggestions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.3.2

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

6.3.3

How to attach the video camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6.3.4

Cable connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6.3.5

Adjustment method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

6.3.6

How to operate the video relay lens adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6.3.7

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6.4 6.4.1

6.5

Video relay lens adjustment method

Position adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Internal Fixation Target

6.5.1

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6.5.2

How to attach the Internal Fixation Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

6.5.3

How to attach the Internal Fixation Target . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Polaroid Attachment PA-50EX (for colour photography)

TROUBLESHOOTING 7.1

Before requesting service

7.2

Troubleshooting table

7.3

Error code list

SPECIFICATIONS

INSTRUCTION MANUAL

xvii

Retinal Camera TRC-50 IX

xviii

COMPONENTS

1.1 Main Body

(8)

(2)

(9)

(1) 35˚ 20˚

50˚

(7)

TRC-50IX RETINAL CAMERA

(5) (6)

S N

(10)

(3) (4) (12) (11)

Retinal Camera TRC-50 IX

(1)

Angle changing lever 50°, 35° or 20° can be selected as an angle of coverage.

(2)

Diopter compensation knob Used to compensate the dioptric power of strong myopia and hyperopia in the patient and also used for ocular anterior photography.

(3)

Filter switching knob Changed for different kinds of photography.

(4)

Illumination diaphragm lever When dilation is sufficient, set to N. When dilation is not sufficient, set the angle to 35° or 20° and set it to "·". In the case of fluorescein angiography, set to "•".

(5)

Focusing knob

(6)

Internal fixation target mount The optional internal fixation target may be mounted.

(7)

35 mm camera body locking lever

(8)

Accessories mount Optional accessories (Polaroid attachments, different relay lenses) can be mounted here.

(9)

Accessory locking lever

(10)

Lamp house cover

(11)

Swing arm locking lever

(12)

Control lever Enables sideways, forward and backward adjustments of the main body to be made. Vertical adjustment of the main body is also possible using this lever.

Components

(21) (20) (22)

TRC-50IX RETINAL CAMERA

(23) (15) (18)

(14)

(17) (16)

(13)

(19)

(13)

Shutter release button Xenon lamp flashes when pressing the shutter release button.

(14)

Data plate insertion slot The data plate on which the patient’s information is written can be added on the photograph for information purposes together with the retinal image.

(15)

Mount for 35 mm camera body

(16)

Alignment illumination point switch

(17)

Lower arm

(18)

Upper arm Swings up to 30° to the right and left.

(19)

Tilting unit handle Swings up to 15° upwards and 10° downwards.

(20)

Tilting unit brake lever Turned to make the instrument tilt-free and locked, and for adjusting the brake force.

(21)

Horizontal index window Indicates red when the main body is level (tilting angle of 0°).

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

(22)

Finder

(23)

Cable holder

1.2 Control Unit

(34)

(35)

(36)

EX-BA LINK

DIP SW

EXPOSURE

O N

(40)

(37)

300 9

OFF

FLASH

FLICK

1 2 3 4 5 6 7 8 9 10

OFF

(28)

200 8 150 7

(25)

100 6 75 5

NORMAL 1

50 4

36 3

FLUO

(26)

EXCITER

BARRIER

UPPER

TIME DATA

STEREO

LOWER

(32) (31)

25 2 18 1 12 0

LOCK NF −

FREE

(39)

(24)

(38)

(24)

(27)

FREE

(33)

(30)

(29)

TIME switch The timer starts when pressed once and stops when pressed a second time.

(25)

Illumination knob (NORMAL) Illumination adjustment for normal colour photography.

(26)

Illumination knob (FLUO) illumination adjustment for fluorescein photography.

(27)

STEREO lever Tighten the lever and stereo photography becomes possible, by moving the base right and left.

Components

(28)

ID switch Under the ID mode, the switch sets the DATA input mode, and fixes the input data (numerals) (cancels the DATA input mode).

(29)

UPPER/LOWER selector switch When UPPER is selected, photography using the UPPER set camera is possible.

(30)

DATA switch To photograph the patient’s medical record, push the switch and let the xenon lamp flash.

(31)

Flash correction switches Increases or decreases the pre-set light intensity. Press the ∆ button to increase it or the ∇ button to decrease it. For example, when the pre-set 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).

(32)

Flash correction indicators 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 numeral keys "-, 0 to 9" for data input.

(33)

Base fixing lever (LOCK) Lock this lever when photographing.

(34)

FA Filter Setup switch With this switch set to ON, the fluorescein filter is interlocked at the time (FA Filter Setup) of photographic operation. The interlocking can be cancelled by turning it off. (Photographing is possible using a blue filter.)

(35)

EXPOSURE switch Set this switch to "1" for manual mode or to "2" for program mode.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

(36)

Dip switches

No.

Description

Changes the sub mode

Changes the xenon flash delay time

Sets the ID mode

OFF/ON

Changes the fluorescein filter interlock mode.

5 6

ON: Tool mode OFF: Set initially OFF: Counter mode ON: ID mode OFF: The Ba filter is inserted when pressing the shutter release button for the first time, this also applies to subsequent filter insertions. ON: The Ba filter is inserted and removed each time the shutter release button is pressed. OFF: Set initially

Unused

OFF: Set initially

Changes the frequency

Changes the video relay lens mode

OFF: Set initially

OFF: 50Hz ON: 60Hz OFF OFF

AUTO Mode

ON OFF

SV1 Mode

ON ON

SV2 Mode

OFF ON

TV Mode

All the dip switches are OFF at delivery. Do not change any settings unless directed by an authorised service technician. Changing these settings may cause damage to the instrument. (37)

Data display unit Displays data recorded on film (counter, timer, ID, angle of coverage and left or right eye). Will also display any error indications.

(38)

BARRIER switch Press the switch to insert the barrier filter. Press again to remove the barrier filter.

(39)

EXCITER switch Press this switch to insert the excitation filter. Press again to remove the excitation filter.

(40)

FLICK switch Switches the fixation target between lighting and flicking.

Components

1.2.1

Data shown on the data display unit Counter mode The counter displays up to "999" when using 35 mm colour photography. The displayed data is restored to "001" when the ID switch is pressed. Counter

Right eye or Left eye

Angle of coverage

Timer mode Press the TIME button once, and the timer starts in the upper column. The counter shows "01" and the subsequent values. The displayed data is restored to "01" when a new film is loaded. The value of the counter does not appear on a photo. Timer

Right eye or Left eye

Angle of coverage

ID mode Refer to Recording patient data by ID mode starting on page 69. Error code Refer to Error code list on page 98.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

1.3 35 mm camera (44)

(42)

(43) (45)

(41)

Back cover release lever

(42)

Rewinder

(43)

Rewind switch

(44)

Film counter

(45)

Mount

(41)

Components

1.4 Power Supply Unit (50) (61) (56) TRC-50IX

(55) TRC-50IX

(60) (54) (53)

(51)

(59) (57) (58)

(46)

(50)

(49)

(48)

(47)

(46)

Power switch

(47)

Body connection cord

(48)

Base connection cord

(49)

Power cord

(50)

Primary fuse holder

(51)

Secondary fuse holder

(52)

External fixation target

(53)

Chin rest adjusting knob

(54)

Chin rest

(55)

Height level marker: Patient’s eye must be aligned with this marking.

(56)

Head strap

(57)

CONTROL terminal: Used for connection with IMAGEnet.

(58)

DATA terminal: Used for communications with IMAGEnet.

(59)

TIMER terminal: Used for connection with the video timer.

(60)

Head band

(61)

Fixation target colour selector

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

1.5 Assembly components Main body 35 20

TRC-50IX RETINAL CAMERA

S N IA

Power supply unit

0I -5

C TR

Components

1.5.1

Main body Description

1.5.2

Quantity

Main body

Dust cover

Instruction manual

Phillips screwdriver

Connector cover set screw

Power supply unit Description

Quantity

Power supply unit

35 mm camera

Fixation target

Accessories case

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

1.5.3

Accessories case Description

Accessories case

Quantity

Chin rest paper

Chin rest paper fastening pins

Fuses (quantity is changed depending on the used areas) Data plate

9 5

Hexagonal wrench (large)

Hexagonal wrench (small)

Tilting unit brake lever

ASSEMBLY

These instructions are for assembling the TRC-50 IX Retinal Camera after all the components have been carefully removed from the packaging. When handling the main body and power supply unit, hold them firmly. If dropped or if your hands and fingers are caught between the components, they may be injured.

PRECAUTIONS

Do not disassemble, remodel or repair this instrument. Such actions may cause an electric shock. If repairs need to be done, you must contact your authorised dealer to have these carried out.

Do not remove the covers from the bottom, power supply unit and main body. Such actions may result in an electric shock.

Retinal Camera TRC-50 IX

Disconnect the power plug from the outlet before assembling the instrument. An electric shock may otherwise occur. Do not connect the power plug to the outlet while the instrument is being assembled.

PRECAUTIONS

Do not install the instrument on a slope or on an uneven surface. The instrument may become unstable, topple over and harm people nearby.

PRECAUTIONS

Do not hold the head strap or chin rest support when transporting the instrument. Such an action may result in dropping the instrument and may cause bodily harm.

Ensure that the instrument is transported by two persons, both holding the bottom of the instrument. Single-handed transportation is very dangerous, possibly causing the person carrying the instrument to hurt his back or get injured if the instrument is dropped. Holding a part of the instrument other than the bottom, your hands may get caught (and pinched) which could result in the instrument being dropped.

Assembly

2.1 Assembly procedure 1 Remove the power supply unit from its storage box and place it on a table. Be careful not to get your fingers caught.

2 Set the upper arm fixing knob on the dotted mark.

S S

N IA

3 Insert the upper arm over the shaft protruding from the lower arm. Fasten the screw at the top of the upper arm, using the hexagonal wrench supplied.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

4 Take the connector (socket) out by removing the plate on the side of the supply unit.

5 Connect the connector (socket) to the connector (plug) of the main body. 6 Connect the other connector (plug) to the connector (socket) which is situated on the side of the unit.

7 Replace 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 the screws. 8 Mount the external fixation target.

9 Install a 35 mm camera. (Refer to 3.1, Preparing a 35 mm camera on page 44.)

Assembly

2.2 Checking after assembly

Connect the power plug to a grounded three-pin AC outlet. Outlets which can not be grounded can lead to a short-circuit which, in turn can cause a fire or an electric shock.

WARNING

Disconnect the power plug from the outlet before measuring the power frequency. Such actions may result in an electric shock.

WARNING

Checking the primary voltage

Check that the input voltage is within the range of +10% of the rated voltage. For a higher input voltage, a constant voltage power supply (commercial product) must be used. The system may not operate properly if the range is exceeded.

120 V

220/230 V

240 V

Checking the power supply outlet

A 15A or higher electric current capacity is required. Make sure that your outlet is compatible with the three-pin plug of this instrument. If the outlet is not compatible, consult an electrician and make sure that the instrument is grounded.

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, which corresponds to the frequency in your area.

1 2 3 4 5 6 7 8 9 10

OFF

Power frequency is set to 50 Hz before shipping. Check the frequency of the available power supply, and set the No. 8 switch to a higher position for 60 Hz frequency.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

If an instrument uses 50 Hz when set to 60 Hz, the brightness of the illumination lamp will not be sufficient and the light intensity can not be adjusted. Checking the control lever operation

Loosen the base fixing knob and operate the control lever to check whether it moves smoothly or not: a Horizontal movement b Forward and backward movement c Vertical movement

Checking tilting unit balance

After any optional accessories are installed, tilt the body by loosening the tilting unit brake lever, and check its balance. Before shipping, the product is adjusted in such a way as to keep its balance when a Polaroid attachment is installed. Depending on the optional accessories installed, this balance may be incorrect. In such cases, adjust the balance according to the instructions given in Tilting unit balance adjustment on page 37.

Checking the illumination lamp

Connect the power cord and turn on the power switch. Check whether the illumination light is working by putting your hands in front of the objective lens.

Checking the xenon lamp

Check whether the xenon lamp lights up by pressing the shutter release button, with the UPPER/LOWER selector switch set to LOWER.

When connecting to IMAGE net

Set the DIP switch of CPU to "1" when using VS-150 and to "3" when using VS-120.

CPU

Assembly

The interface cable for the IMAGE net System is available as an optional accessory. For additional details on the IMAGE net System, contact your authorised TOPCON dealer.

2.3 Tilting unit balance adjustment The tilting unit has been set up to handle the weight, including a Polaroid attachment. If a video set is installed or a Polaroid attachment is dismounted, this weight changes and unbalances the tilting unit. In such cases, the tilting unit must be adjusted according to the following method:

PRECAUTIONS

1 Tighten the tilting unit brake knob until it is locked and install optional accessories. Tilting unit brake knob

Cover

Tilting unit brake knob is free when loosened and locked when tightened. The more the knob is fastened, the tighter the brake. The tilting unit brake knob can be rotated up to about 2.5 turns in order to transfer from free mode to completely locked mode. Do not fasten the tilting unit brake knob too tightly. 2 Loosen the tilting unit brake knob until it is released and check the tilting unit balance. 3 Remove a single screw and remove the tilting unit cover.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

4 Loosen the safety stopper screw. Loosen the safety stopper screw by turning it approximately 4 times. There is no need to remove the screw. Safety stopper screw

TRC-50IX RETINAL CAMERA

Stopper

5 If the body is heavy and too low, insert a screwdriver into the hole at the bottom of the tilting unit, turn it clockwise a little and while holding it in that position, grab the stopper and pull it in the direction of the arrow, as shown in the photo If the body is light and too high, insert a screwdriver into the hole at the top of the tilting unit and turn it counterclockwise. 6 While holding the screwdriver as in step 5, turn it slightly clockwise until stopper disengages, Now, wind the spring by turning the screwdriver until the stopper is inserted. After making sure that the stopper is completely inserted, pull out the screwdriver. 7 Repeat the spring winding operations in steps 5 and 6 until the body stays level. Verify tilting unit balance by carrying out tilting operation. 8 Tighten the safety stopper screw and install the cover.

2.4 Tilting Brake Lever adjustment The attachment of the tilting unit brake lever allows for simple locking and releasing of the tilting unit. How to attach tilting unit brake lever

1 Adjust the tilting unit balance according to accessories mounted. Refer to Checking tilting unit balance on page 36. 2 Turn the tilting unit brake knob to the locking position (clockwise).

Assembly

3 Attach the tilting unit brake lever pointing toward the LOCK position.

Tilting unit brake lever W.D. ON

FREE

OFF

LOCK

4 Set the tilting unit brake lever to the "FREE" position and check the tilting unit operation tension. Set the lever to the "LOCK" position and check the locking capability. The position of the tilting unit brake lever will provide a range of tension for optimum performance. If the tilting unit capability is too loose, adjust the tilting unit brake lever on the knob again, to achieve the proper range of tension. 5 When the proper range of tension is achieved, tighten set screws A and B securely. When readjusting the tilting unit balance, because of addition or removal of accessories, it will be necessary to readjust and reposition the tilting unit balance lever.

2.5 Cable holder adjustment In order to use an optional accessory video relay lens, the cable holder can be adjusted according to the number and thickness of cables used for the video camera. 1 Remove the tilting unit cover. Refer to 2.3, Tilting unit balance adjustment on page 37.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

2 Loosen the screw from the cable holder and refasten it as required by the cables used.

Cable holder

Machine screw

2.6 Adjustment of horizontal balance If the floor or instrument table is not horizontal, the instrument will not remain stationary and may move unexpectedly. In such a case, adjust the horizontal balance according to the following procedure. 1 After the required optional accessories are installed, set the tilt to 0° and place the instrument straight (no swing allowed). 2 Move the instrument backwards and forward by using the control lever. 3 If the control lever is released when moving the instrument, check whether the control lever is fastened back again. 4 Once the control lever is fastened again, turn the adjusters of the power supply unit to adjust the height.

Assembly

Keep the right and left at the same height. (Turn the right and left adjusters uniformly.)

5 Adjust the right and left in the same manner. Adjust the front and rear uniformly. (Turn the right and left adjusters uniformly.)

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

2.7 Preparations for use 2.7.1

Power-saving function This system incorporates a power-saving function.

The power-saving function of this system automatically shuts off the power supply for the observation lamp, after 30 minutes have passed without photographing. However, in the case of fluorescein photography, this time is extended to one hour. When the power-saving function is activated, "SLEEP" is indicated on the data display unit and the LED of the UPPER/LOWER selector switch blinks. To return to the normal status, press the UPPER/LOWER selector switch.

6 5

3 2

DATA

−

BASIC OPERATION

Check for side-effects of mydriatic drops. Mydriatic drops may lead to severe side-effects.

WARNING

Ensure that the illumination lamp is not brighter than necessary. Excessive intensity may result in discomfort to the patient.

PRECAUTIONS

Avoid placing your hands between the power supply unit and the base. If the base is moved, the hands may get caught in between and be injured.

Ensure that nobody’s hands are placed between the main body and the lower arm of the instrument. If the main body is tilted, your hands may get caught in between and be pinched and injured.

Retinal Camera TRC-50 IX

When the main body is moved, the hands may get caught in between and be pinched and injured.

PRECAUTIONS

Ensure that nobody’s hands are placed between the chin rest support and the lower or upper arm of the instrument. This warning is primarily aimed at the patient.

Pay close attention to the clearance between the objective lens and the patient. If the main body is moved, the objective lens may bump against the patient’s eye or nose, inflicting a minor injury.

3.1 Preparing a 35 mm camera 1 Mount the 35 mm camera onto the main body. Align the slot of the camera mount with the marking point of the mount for the 35 mm camera body. Next, mount the 35 mm camera, pressing it against the main body.

Positioning pin

Basic operation

Turn the 35 mm camera body locking lever counterclockwise until it firmly locks the body into place.

To detach the camera body, hold the 35 mm camera body in the right hand, and turn the locking lever clockwise to the position of the stopper with the left hand. Then, pull out the 35 mm camera body. Don't install others except MT-10 to the LOWER mount. 2 Turn ON the power switch of the power supply unit. 3 Set the UPPER/LOWER selector switch to "LOWER" on the control unit.

100 6 75 5

50 4

36 3 25 2

DATA

LOWER

18 1

12 0 NF −

This operation is unnecessary if there are no accessories installed.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

4 Pull the back-cover locking lever upwards. Aperture mask

The 35 mm camera back-cover will be opened. 5 Put the film in the cartridge chamber.

Do not touch the aperture mask on the film rail. It is easily damaged. 6 Draw out the end of film until it reaches the red mark, and close the back cover.

Red mark

Basic operation

The film is automatically wound until the film counter reads "1." When a 35 mm camera, separately loaded with new film, is mounted onto the main body, the film is automatically wound until the film counter reads "1." The ISO film speed is indicated on the data display. "F-Err" is indicated on the data display unit when pressing the shutter release button while the film is not fully loaded or there is no film in the cartridge chamber.

3.1.1 In the normal mode

Film rewinding and unloading 1 When the roll of film is full, the red LED at the top of camera starts flashing and makes a buzzing sound, and the film is rewound automatically. 2 After the film is rewound, open the back-cover by pushing up the back-cover release lever on the side of camera and unload the film. Back cover release lever

In the intermediate rewinding mode

Rewind switch

When the film is partially used, and you slide the rewind switch on the upper right of the back of camera to the left, the red LED at the top of camera starts flashing and making a buzzing sound, and the film is rewound automatically. You cannot operate the UPPER/LOWER selector switch during rewinding. Don't turn off the power of the camera during rewinding.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

In the manual rewinding mode

1 Dismount the 35 mm camera from the main body and slide the rewind switch to the left. 2 Lift the rewinder handle, on the top left of the camera, and turn it in a clockwise direction until it becomes loose. Rewinder handle

3.2 Precautions when handling a 35 mm camera

Wipe the contacts on the camera mount gently with a clean cloth, from time to time, in order to maintain a good electrical contact. Clean the film chamber, sprocket and film pressure plate, from time to time, in order to prevent scratches on the film.

Contact Film chamber

Sprocket

Film pressure plate

Basic operation

3.3 Preparing the patient 1 After the patient’s pupil is adequately dilated after applying mydriatic drops, dim the lights in the room. Confirm whether the patient’s pupil us dilated sufficiently. If dilation is inadequate: When the pupils are only dilated between ø4.5 mm to ø5 mm, set the illumination diaphragm lever to the "•" position. Also, photograph at an 35° or 20° angle of coverage. When photographed at a 50° angle, it may not be possible to eliminate the flare completely.

S N IA

Note:

Only set the illumination diaphragm lever to the "S" position if the dilation of the pupil is inadequate.

ø 5.0 mm

ø 6.5 mm

2 Seat the patient properly. The patient should be seated as follows: • Have the patient, with a completely dilated pupil, sit down in front of the instrument. • Adjust the height of the instrument table and the chin rest in order to rest the chin properly on the chin rest and the forehead against the head strap.

INSTRUCTION MANUAL

Retinal Camera TRC-50 IX

• The height of the chin rest can be adjusted by rotating the chin rest adjusting knob. High level marker

S N IA

• Ensure that the patient’s eye is approximately in alignment with the high level marker. • The height of instrument table can be adjusted with the AIT up-down switch located on the instrument table. 3 Guide the patient’s eye so that the part of the fundus which has been targeted, can be photographed. Guiding the patient’s eye: Guide the patient’s eye as appropriate by moving the external fixation target. If the eye that is being examined has difficulty in focusing on the target, due to astigmatism, press the FLICK switch to flash the external fixation target for an easier focusing.

FLICK

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TOPCON

Retinal Cameras

TRC-50 IX Instruction Manual March 2000