OCTOPUS 300 Service Manual Edition 8 Aug 2014

Tradition and Innovation TABLE OF CONTENTS 1 2

PARTS DELIVERED ...3 SAFETY INSTRUCTIONS ...4 2.1 General ... 4 2.2 Instrument Transportation ... 4 2.3 Symbols ... 5 Special Notices in the Text ... 5 3 INTRODUCTION ...6 3.1 OCTOPUS Perimeter 300 ... 6 3.2 Instrument Table ... 7 3.3 Installation ... 8 4 SOFTWARE ...10 4.1 Installation, Exchange, Upgrade ... 10 4.2 Releasing Program Options ... 10 5 PRINCIPLE OF OPERATION ...12 5.1 Functional Diagram ... 12 5.2 Stimulus Intensity Control ... 12 5.3 Background Intensity Control ... 14 5.4 Reference Point... 14 5.5 Optics Module ... 15 6 CARE AND MAINTENANCE ...16 6.1 Cleaning ... 16 7 MAINTENANCE AND REPAIR ...17 7.1 Housing (1805001) ... 17 7.2 Optical Unit (1802669) ... 18 7.3 Z-Shaft (1802190) ... 19 7.4 Fixation Target (1802206) ... 20 7.5 Correction Lens Holder (1007496) ... 22 7.6 Background Module, Lamp house (1802247) ... 26 7.7 Brightness Regulator Module (1802248) ... 27 7.8 Stimulus Projector OCTOPUS 301(1802249)/ Stimulus Projector OCTOPUS 300 (1802544) ... 31 7.9 Touch Screen Module (new version with TFT display) – Part No. 1802870... 32 7.10 Lift-/Swivel Unit (1802241) ... 34 7.11 Headrest Assembly ... 36 7.12 Power Supply (1802199) ... 38 7.13 Processor Board I (1802431), Processor Board II (1802654) ... 38 7.14 SDRAM Module (1802152) ... 44 7.15 Interface Board (1802224), Ethernet Interface Board (1802671) ... 47 7.16 Connector Board (1802213) ... 48 8 SERVICE PROGRAMS ...49 8.1 Subassembly Test ... 49 8.2 Service/Diagnostic... 50 8.3 Printer ... 56 8.4 Dongle Codes ... 56 8.5 Light Intensity Calibration ... 56 8.6 Entering Parameters ... 56 8.7 Verifying Calibration Parameters ... 57 8.8 Instrument Information ... 58 9 SYSTEM MESSAGES ...59 9.1 Messages ... 59 9.2 Errors ... 59 10 APPENDIX...62 10.1 Technical Data ... 62

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OCTOPUS 300 Service Manual

Tradition and Innovation 1 PARTS DELIVERED 1 OCTOPUS perimeter 300 1 Set of accessories containing: 1 Patient response button 1 Dust cover 1 User's Manual 1 Ocular cover 3 Touch pens 1 Eye occluder (2 pieces) 2 FuesT3.15 A / 250 V 1 Allen (hexagon) wrench 2.5mm 1 Screwdriver 1 USB printer cable 1 Octopus VF Digest 1 FTP Server Installation

OCTOPUS 300 Service Manual

1802238 1802250 1802032 1802304 1802737 1800339 1802303 1800339 1801326 1802338 1802345 1802347 1800092 1802742

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Tradition and Innovation 2 SAFETY INSTRUCTIONS 2.1 General 

This instrument can only be used for the purpose as described in this manual.



The examination of the patients, the operation of the instrument and the interpretation of the results can only be performed by persons who are experienced and who have been trained accordingly.



The instrument is to be installed on the height-adjustable table and employed in a dimly lit room in a medical area.



Keep this User's Manual there where persons who operate the instrument can consult it at all times. Guarantee claims can only be valid when the instructions in the User's Manual are followed.



The doctor or operator is to instruct the patient in the safety instructions and check that they are observed.



Make sure that the instrument is connected only to the power source as defined on the perimeter rating plate. The on/off switch does not separate the perimeter from the power lines. Before maintenance or cleaning work is performed, the power cord must be removed from the wall socket.



Removal of the housings and repairs to the instrument are permitted only by trained and authorized technicians. Considerable danger for the operator and patients can be caused by improper repairs.



Only original replacement parts and original accessories are permitted for repairs.

2.2 Instrument Transportation Transport the instrument over large distances in the original packing. For short distances the instrument can be lifted using the two lower housing sides. Two ribbed grips are provided on the left and right sides which prevent from slipping sideways.

Do not use the forehead rest of the perimeter as a carrying handle. This plastic part is not adequate for the weight and can therefore break.

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OCTOPUS 300 Service Manual

Tradition and Innovation 2.3 Symbols 2.3.1 Messages, Errors Messages, information

Error messages

Warning Warning against hazard

Special Notices in the Text Further safety instructions are put into the text as needed. They vary in importance and should help preclude risks for the patient and operator, hinder damage to the perimeter and insure optimal functioning.

ATTENTION:

Instruction which must be followed to preclude risks to the patient and operator.

WARNING:

Instruction which must be followed to hinder damage to the perimeter.

TIP:

Tip for insuring optimal functioning of the perimeter.

OCTOPUS 300 Service Manual

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Tradition and Innovation 3 INTRODUCTION 3.1 OCTOPUS Perimeter 300 The OCTOPUS 300 s a direct projection perimeter for examinations of the central visual field (30°). It is a stand-alone system, which means, the examination and control units are integrated into the instrument.

6

1

9

2

10

3

7

4

8

5 11

1 2 3 4

Optical unit with upper housing Lower housing (left and right) Grip locations (left and right) Rotation and height adjustable instrument column for fine positioning 5 Headrest with 6 Forehead rest with integrated sensors 7 Chin rest 8 Turning knob for chin rest positioning (rough positioning) 9 Ocular 10 Trial lens holder with IR eye illumination 11 Connector for Patient response button

Figure 1

12

13 14

12 Turning knob for image focusing 13 Operating unit with LCD monitor and Touch module 14 Base with Connector panel and Power Supply

Figure 2

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OCTOPUS 300 Service Manual

Tradition and Innovation 16 17 18 19 20 21 22 15

Figure 3

ATTENTION:

15 16 17 18 19 20 21 22

Connector panel with Power switch Power connector Printer connector (USB) Serial interface (RS 232) Ethernet connector (OCTOPUS 311) Ethernet control lights Contrast LCD monitor

All external devices connected to the connector panel must comply with the corresponding safety standards.

3.2 Instrument Table An electrically adjustable instrument table (optional) makes it possible to comfortably adjust the height of the instrument to the individual size of the patient.

1

2 3

1 2 3 4 5

Table top with holder for patient response button Electronics box Patient response button Electrical column Table foot

4 5

Figure 4 Up / Down switch on the electronics box ATTENTION:

With patients in wheelchairs, care must be taken when lowering the table that the table plate does not come into contact with their legs.

Figure 5

OCTOPUS 300 Service Manual

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Tradition and Innovation 3.3 Installation 3.3.1 Instrument Table The instrument table is delivered in a separate package. Utilize the instructions included with the table to put the table together and take care to select the correct voltage before connecting the power cord.

6 7

6 7

Voltage selection switch on the electronics box Power connector for attaching the OCTOPUS 300

WARNING:

Be sure to set the correct voltage before inserting the power cord connector.

Figure 6

Power connector socket with fuse holder on the electronics box

Figure 7 3.3.2 OCTOPUS 300 Handle the instrument using both lower housing halves to lift it out of the packing. Two ribbed grips hinder sideways slipping.

Do not use the forehead rest as a carrying handle during unpacking or transportation! Stirnstütze beim Auspacken oder Transportieren nicht als Traggriff benutzen! Ne pas utiliser l'appui-tête comme poignée pendant le déballage ou pour transporter! Since the OCTOPUS 300 works without a cupola, a fully darkened room is not required. In order, though, to make the examination conditions pleasant for the patient and for obtaining reliable results, the instrument is to be placed in the room so that no direct light falls on the instrument or the patient. The positioning between the patient and the operator or the operating panel can be so chosen that the room conditions are optimally used.

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OCTOPUS 300 Service Manual

Tradition and Innovation

The patient sits across from the operator

The patient sits on the operator's left

The patient sits on the operator's right

Figure 8   

Loosen the three Allen head screws roughly 2 turns counterclockwise on the perimeter of the headrest holder (Allen wrench is included with the accessories) and turn the headrest together with the optical unit into the desired position. Tighten the three Allen head screws again. A complete rotation around the column is blocked by a built in limit. Place the instrument on the table so that the opening of the table foot and the headrest are in the same direction. Connect the ‘Patient response button’ to the connector located on the support of the headrest. The connector housing for the ‘Patient response button’ is accessible from below on the headrest support. The catches on the Patient response button connector are oriented in the direction of the instrument column. ATTENTION: Besides the ‘Patient response button’ no other cable should be attached to the RJ11 connector.

Figure 9   

Headrest support with connector Instrument column Connector with catches

Stick the connector plug so far into the connector housing that the catches audibly click. To remove the ‘Patient response button’, press the catches in the direction of the headrest and pull out the cable downwards. If the examination data are to be transmitted to a PC, connect the OCTOPUS 300 and the PC with the serial connection cable. Plug the power cord in. The built in ‘Power supply’ works with the voltage specified in Chapter 10.1 'Technical Data'. A change of voltage on the instrument is not required. If an instrument table was delivered with the unit, the OCTOPUS 300 can be connected using the power socket in the electronics box of the instrument table.

OCTOPUS 300 Service Manual

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Tradition and Innovation 4 SOFTWARE 4.1 Installation, Exchange, Upgrade For application software installation and upgrade refer to Chapter 7.14.1 'SIM Flash Module, Application Software (1802222). 4.2 Releasing Program Options Some of the functions of the OCTOPUS 300 are offered as options and are not accessible in the basic version of the software. Basically all the functions are present in the software, but some can only be made accessible with a code. This code is delivered by HAAG STREIT and is then entered by the customer or the service technician into the instrument. Information about such additional functions can be obtained directly from HAAG STREIT or from your representative. 4.2.1 Procedure Dongle codes 

Read out software master data  Actual dongle code  Serial no.  Software version



Enter new dongle code. The keyboard is only released, when the serial number of the instrument is stored in the memory.

To print out the complete instrument information see Chapter 8.8 'Instrument Information'.

Procedure to make additional functions accessible in the perimeter. IMPORTANT:

Customer HAAG STREIT AG Customer

The 'Dongle code' function is only used, when additional program options have been purchased. To avoid free access and faulty manipulations the function is protected. The 'Dongle' button is only released after the two headrest sensors and the 'Dongle' button are pressed at the same time. As from Serial No. 1031 the head rest sensors have been replaced with non-contact head sensors. In this case hold your hand (close) in front of the head rest and simultaneously press the ‘Dongle’ button.  Sends the serial no., software version and the complete dongle code to HAAG STREIT or the representative and orders the desired supplementary function(s).  Based on the serial no. and the present and ordered option(s), the new dongle code is computed and given to the customer.  Enters the complete new dongle code into the OCTOPUS 300.  Open dongle code tab.  Click on 'Dongle code' entry field (numerical keyboard will be displayed).  Enter complete dongle code into the three entry fields.  Close keyboard with 'Esc'.  Save new dongle code by clicking on

OCTOPUS 300

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Before the instrument saves the setting, the parameters are verified by the system. A faulty dongle code will not be saved. The message 'Dongle Code not accepted' is displayed on the screen. Delete wrong code and enter it the correct way.  The new additional functions are accessed via the graphical user interface.

OCTOPUS 300 Service Manual

Tradition and Innovation 4.2.2 Entering the Dongle Code Do n g l e

co d e

1234567890

1234

The complete dongle code consists of a multi-digit three part series of numbers (see example on the left). Entering the code is done via 'Setup' – 'Service' – 'Dongle' 123 IMPORTANT: The additional functions are only made accessible when the dongle code is entered without any mistakes into the instrument it was created for.

4.2.3 The Results of Code Mistakes Every dongle code is unique and only valid for a specific instrument. Mistakes made while entering it or the entering of it into the false instrument (false serial no.) have the consequence that only the basic functions are then accessible. Changing to the old code is possible at all times.

OCTOPUS 300 Service Manual

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Tradition and Innovation 5 PRINCIPLE OF OPERATION HAAG-STEIT is the only company offering perimeters with direct projection systems (OCTOPUS 300, 1-2-3). By means of the ‘Optical unit’, which is replacing the cupola, stimuli are directly projected into the patient eye. This technique does not require dark room condition to take a visual field. 5.1 Functional Diagram

5

6

4 1

3

2

7

8

14

13

12 9

15

11 10

Figure 5-1:

OCTOPUS 300 Functional diagram

1 2 3 4 5 6 7 8

Patient eye Trial lens holder Ocular Image plane Beam splitter 37° Stimulus projection unit Stimulus LED Condenser lens

9 10 11 12 13 14 15

Beam splitter 45° Background illumination Electronics Fixation targets Display/Touch module External PC External printer with USB interface

5.2 Stimulus Intensity Control The required dynamic range of the stimulus intensity of 40 dB (1:10'000) is achieved with a combined control mode: a) b)

Two point current control (I) Pulse-width modulation (S)

I (LED)

S (MOD)

Figure 5-2:

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Principle of stimulus generation

Stimulus LED

OCTOPUS 300 Service Manual

Tradition and Innovation 5.2.1 Current Control Two current reference values (operating points) are ascertained during the stimulus calibration procedure:  Operating point OP1:  Operating point OP2:

0dB 20dB

(max. stimulus intensity) (max. stimulus intensity/100)

Thus the entire dynamic range is divided into two segments:  Segment 1 / operating point OP1:  Segment 2 / operating point OP2:

20dB ... 0dB 40dB ... 20dB

I (LED)

I (LED) OP1 Operating point 1

I (LED) OP2 Operating point 2 L (asb) Lmin = 40dB

L max /100 = 20dB

Figure 5-3:

L

max

= 0dB

Stimulus LED current control

5.2.2 Pulse-width Modulation A typical stimulus of 100ms duration is formed by a burst of 20 5ms pulses. The width (ratio LED switch-on/LED switch-off time) of the 20 pulses can be increased or decreased by processor control in steps of 0.4s (12'500 steps for 5ms). With a longer switch-on time the LED is emitting light for a longer time period, resulting to the human eye, which has an integrating characteristic, in an impact of higher brightness. Pulse-width and light emission are proportional. Pulse-width modulation and stimulus duration are controlled by the microprocessor software through logic timer signals. I (LED) Stimulus duration = 100ms (20 pulses) Pulse of 5ms S (MOD) = on

S (MOD) = off

OP1

darker

brighter

darker

brighter

Pulse 20

brighter

Pulse 2

OP2

Pulse 1

darker

t

OCTOPUS 300 Service Manual

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Tradition and Innovation Figure 5-4:

Stimulus LED pulse-width modulation

5.3 Background Intensity Control The light source for the background illumination consists of a number of white LED’s. During initialization of the perimeter the background brightness is measured by a photo sensor and controlled by a DAC value. Pulse-width modulation is not used for background illumination. 5.4 Reference Point During initialization of the perimeter the stimulus projection unit is centered to the optical system (position x/y = 0/0). The photo sensor for background illumination calibration is used as reference point.

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OCTOPUS 300 Service Manual

Tradition and Innovation 5.5 Optics Module

1

Fixation targets

Light measurement 3

2

CCD camera 4 17 5 Stimulus projection unit 7

8

9 6 10 11 Ocular Background illumination

13 12

14 16 15

Figure 5-5:

Optics module

OCTOPUS 300 Service Manual

1 2 3 4 5 6 7 8 9

Fixation targets Fixation target objective lens CCD camera chip Camera objective lens Ocular lenses Beam splitter 37° Field lens Beam splitter 45° Stimulus objective lens

10 11 12 13 14 15 16 17

Stimulus LED Condenser lens Deflection mirror Deflection mirror Scatter pane Background LED’s Compensation filter Light measurement unit

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Tradition and Innovation 6 CARE AND MAINTENANCE 6.1 Cleaning It suffices to dust the instrument periodically with a soft cloth. More obstinate dirt particles can be removed using a soft cloth dampened slightly with water or alcohol. ATTENTION:

Avoid making the instrument wet and never use any solvents.

6.1.1 Patient Response Button, Chin and Headrest, Turning Knobs and Eye Occluder All of these parts are made from plastic which can be cleaned with no problems. In order to keep them hygienically clean, they should be cleaned periodically with a cloth or cotton dampened with alcohol. 6.1.2 Ocular Finger prints and dust can be removed with a moist soft cloth. 6.1.3 Monitor Screen, Touch Module Finger prints and dust can be removed with a moist soft cloth.

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OCTOPUS 300 Service Manual

Tradition and Innovation 7 MAINTENANCE AND REPAIR WARNING:

Before opening the instrument make sure that the mains cable is separated from the instrument.

WARNING:

Some of the modules need alignment after being exchanged. Therefore it is important to go through all the steps described in exchanging the module that needs to be replaced.

WARNING:

Electronic circuits of the OCTOPUS 300, particularly the 'Processor board', the 'Interface board' and the LEDs in the 'Background LED module' are all very sensitive to electrostatic charges. Keep all modules in static shielding bags for storage, transportation and shipping.

Besides an ordinary set of regular tools the following tools and instruments are recommended:  Set of Allan- (hexagonal) wrenches, metric 1.3 to 8mm  Set of Torx screwdrivers (the sizes in this manual refer to the screwdriver size)  Universal digital voltmeter, range 200mV to 250V Cleaning Materials    

Can of compressed air Lens tissue Lens cleaner (diluted alcohol) Cotton swabs

Whenever possible, field repairs of the OCTOPUS 300 should be restricted to module exchange. The sub module (part) causing a problem should be localized with the help of the service manual and error list. It should then be replaced with an exchange module. 7.1 Housing (1805001)  Housing left  Housing right  Housing top NOTE:

If the 'Housing' is removed, the perimeter will only initialize and calibrate correctly if it is placed in an entirely dark environment. The covers can temporarily be put back in place for its operation and to run the 'Service programs' such as the 'General test' in a semi-dark room.

Removal 

Remove the 'Housing top' by removing the four Phillips (M4) screws in each outer corner from the bottom part of the 'Housing left' and 'Housing right' (see Figure 7-1).

OCTOPUS 300 Service Manual

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Tradition and Innovation

Housing top

Housing right

Screws to remove 'Housing top' (in the same position on both sides)

Screws to remove Housing right

Housing left

Figure 7-1  

Once the screws have been removed, simply lift the 'Housing top' and place it on a clean surface. Remove the 'Housings left' and 'Housing right' by removing the 4 Phillips (M4) screws in each inner corner from the bottom of the 'Housings left-/right' (see Figure 7-1). The Optical unit can be swung in a left/right movement for easy access. Remove the 'Housing left-/right' by gently lifting both parts out of the instrument. Place both parts on a clean surface.

Reassembly Reassemble in reverse order to removal. Check Once reassembled check that the screws have been tightened and that the 'Housing' is clean. 7.2 Optical Unit (1802669) Removal   

Remove the 'Housing' (see Chapter 7.1). Remove the bottom 5 connectors of the 'Interface board'. Remove the screw and washer holding the 'Grounding cable' connected to the 'Optical unit'. On the 'Processor board' disconnect the cable 'Switches' (6 pin) and the cable 'LCD' (50 pin).

Connector 'Switches' (6 pin) SD RAM module SD RAM module

Position of the cable 'LCD' (50 pin) Figure 7-2:

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Processor board

OCTOPUS 300 Service Manual

Tradition and Innovation

SIM Flash module Processor board board LCD cable Fixation target Interface board Swivel ring

Figure 7-3   

Cut the tie-wraps, holding the cables to the 'Optical unit'. Remove the 'Touch screen module' (see Chapter 7.9), then remove the 'Power connector' from TB2 (see Chapter 7.12). Remove the 4 nuts holding the 'Optical unit' to the 'Z-shaft'. See Figure 7.4.

Nuts holding the 'Optical unit' to the 'Z-shaft'

Figure 7-4 

Gently lift out the 'Optical unit', at the same time glide the 'Power connector' through the slot in the 'Z-shaft'. Be careful not to damage any wires. Place the unit on a flat, dust-free surface.

Reassembly Reassemble in reverse order to removal. Check    

Are all cables connected? Are the four nuts holding the 'Optical unit' to the 'Z-shaft' back in place and tightened correctly. Have all the cut tie-wraps been replaced by new ones. After reassembly, run 'General test' to verify faultless operation. Regarding the 'Service Programs', refer to chapter 8.

7.3 Z-Shaft (1802190) OCTOPUS 300 Service Manual

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Tradition and Innovation Removal  

Remove 'Housing' and 'Optical unit' as described in Chapter 7.1 and 7.2. Remove the 3 torx screws (size 25) which are fastened down onto the 'Lift-/ swivel unit' from the top. See Figure 7-5.

3 torx screws (size 25).

Figure 7-5  

Gently lift up the 'Z-shaft', at the same time thread the connectors that were loosened in Chapter 7.1 and 7.2 through the slots in the 'Z-shaft'. Place the 'Z-shaft' on a clean surface.

Reassembly 

Reassemble in reverse order to removal.

Check Before mounting the 'Optical unit' be sure that all the connectors and cables have been passed through the slot in the 'Z-shaft'. 7.4 Fixation Target (1802206) 7.4.1 Fixation Board (1802207) NOTE:

If the 'Fixation board' is defective there is no need to replace the entire 'Fixation target', one can simply remove the 'Fixation board' from the 'Fixation target' by following the steps below.

Removal     

Remove the housing (see Chapter 7.1) Remove the 10 pin flat cable from the 'Fixation board'. Remove the torx screw (size 15) holding the 'Fixation target' to the 'Optical unit'. Simply lift the 'Fixation target' out of the two guide pins. Remove the two hexagon socket screws (wrench size 2,5) and washer holding the 'Fixation board' to the 'Fixation target'. The 'Fixation board' can simply be removed.

Reassembly Reassemble in reverse order. Before remounting the 'Housing', go through the check procedure below.

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OCTOPUS 300 Service Manual