1. INTRODUCTION This OPERATION MANUAL describes the purpose, overall view and user maintenance of the TCP-2000 LCD CHART PANEL. This manual is intended for medical and technical personnel who will perform tests on patients. If during operating the Chart Panel you have encountered problems which you can not solve, or LCD Chart Panel parameters are changed, please, in all these cases contact the manufacturer.
Installation • Leave space under and over Chart Panel to allow proper ventilation. Do not put any objects on top of the TCP-2000 Chart Panel. • Do not put Chart Panel in horizontal position because it can not work in •...
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The manufacturer is responsible for the safety, reliability and performance of the panel only if: Only people authorized by the manufacturer have carried out all the • operations or assembly extensions, adjustments, modifications or repairs. The electric plant of the room complies with the electric standards. •...
2. TECHNICAL DATA Auto off function: adjustable from 4 to 10 minutes • CP type: TCP-2000 • • Power supply: 115 –230 VAC ±10%, 50/60 Hz. Power consumption: 19 W max. • • Classification: Class I Operating temperature range: +5C to + 40C •...
Masks vertical, single, horizontal, underlining Contrast tests Ishihara Tests Red-Green Mask Street lamp test Hands Hearing Impaired Mode Crowding Bars Animations HOTV test Amsler tests Colour Pictures For Children 3D images Anatomy of EYE Table 1. TCP-2000 available tests. Operation Manual...
3.2. Installation To assure proper test conditions TCP-2000 Chart Panel should be mounted on the wall perpendicularly to the patient’s line of sight. The distance from panel to patient’s eye can be adjusted from 1.9 to 7 meters, depending on test room conditions.
3.3. How to operate chart panel with remote control. All functions of Chart Panel are controlled via IR remote control. Picture 2 describes functions of remote control buttons. Pic. 2. IR remote control. Operation Manual...
4. CHART PANEL CONFIGURATION. If TCP-2000 Chart Panel is securely installed in its operating position, connect the power cord to the panel first, then the plug power cord to the power outlet. Chart Panel will start automatically. Flashing LED in the bottom right corner will indicate start-up process.
4.1. Distance This option allows user to set proper distance between patient and TCP-2000 Chart Panel. It is crucial that this parameter is correctly set before first use of the Chart Panel. Enter ‘Distance’, using Arrow Up or Arrow Down button.
4.4. Chart type – display mode (Snellen, LogMar Modified, Snellen Modified, Snellen Contrast chart type) Option `Chart type` allows the user to work with Snellen Chart, LogMar Chart Modified, Snellen Chart Modified or Snellen Contrast (please refer to chapter 5.2.). Enter ‘Chart type’, using Arrow Up or Arrow Down button.
Information about currently selected visus scale is continuously HINT ! displayed on the left top part of the screen. Set ‘Visus unit’ to ‘None’ to hide this information. 4.6. Children Tests This option allows to display two kinds of children tests: Standard and Hands. Enter ‘Children Tests’...
Enter ‘Randomize’, using Arrow Up or Arrow Down button. Press Right Arrow to enter edit mode. Use Up and Down Arrows to set edited parameter to ‘Yes’ or ‘No’ value. Press Left Arrow to apply changes. 4.9. Mirror Option `Mirror` allows to display all tests in mirror presentation. Enter ‘Mirror’, using Arrow Up or Arrow Down button.
Pic. 5. Screen with black background Pic.6. Screen with white background 4.11. Phoropter Set this option to ‘Yes’ when you use TCP-2000 Chart Panel together with phoropter. Adjust colours ( see chapter 4.14.4. ) to assure interpretability with the phoropter colour filters.
4.12. User defined programs - PROGRAM 1, PROGRAM 2, PROGRAM 3. TCP-2000 Chart Panel allows the user to define his own programs. Each program is a sequence of up to 20 steps of charts, tests or eye anatomy pictures available from the panel.
2 hours. Service personnel can adjust it during installation to 30min, 1h, 2h, 3h and 4h depending on the customer needs. If TCP-2000 is in off-mode LED on the front panel is also off.
To restart TCP-2000 simply press any key on the remote control. Time needed for startup is approximately 30sec. 4.14. Service mode ( Service ) Select ‘Service mode’, using Arrow up or Arrow down button. Press right Arrow. ‘Enter password’ message will be displayed.
Press Left Arrow to accept changes. 4.14.3. Demonstration mode ( Demo ) Purpose of this mode is to present all TCP-2000 charts and tests at random cycle. This feature is mostly used during exhibitions, etc. Select ‘Demo’, using Arrow Up or Arrow Down button.
4.16. Shutdown system Select ‘Shutdown system’ using Arrow Up or Arrow Down button. Press Right Arrow button to shutdown system. To restart TCP-2000 simply press any key on the remote control. Time needed for startup is approximately 30sec. Operation Manual...
5. TESTS This chapter includes all detailed information regarding charts and tests available in TCP-2000 Chart Panel. 5.1. Standard optotypes When working with optotype charts you can at any time change HINT ! contrast of the optotype. Use ‘CNT+/-‘ button to set contrast level.
5.2. Chart types There are 4 types of chart type presentations: Snellen chart type LogMar Modified chart type Snellen Modified chart type Snellen Contrast chart type 5.2.1. Snellen type chart presentation The Snellen chart remains the most popular chart design among clinicians. A range of different optotypes can be displayed in Snellen.
Sharpness No. of Total number of (Size) optotypes per optotypes Snellen decimal chart scale 0,05 0,06 0,08 0,125 0,16 0,25 0,32 1,25 Table 2. Sharpness degrees for Snellen type chart 5.2.2. LogMar Modified type chart presentation The LogMar Modified chart is a superior design to the Snellen chart. A wide range of optotypes can be displayed in LogMar Modified format.
5.2.3. Snellen Modified type chart presentation A wide range of optotypes can be displayed in Snellen Modified format Pic.10. Example of Snellen Modified type chart. All signs on screen have the same sharpness degree. NOTE ! When you press contrast adjustment button, then contrast changes in the same way for all rows.
Sharpness No. of Total number of (Size) optotypes per optotypes Snellen decimal chart scale 0,05 0,063 0,08 0,125 0,16 0,25 0,32 1,25 Table 3. Sharpness degrees for Snellen Modified type chart. 5.2.4. Snellen Contrast type chart presentation Same as ‘Snellen modified’ but each line is displayed in different contrast level. All charts on single screen have the same sharpness degree.
Test name description Cross grid Cross cylinder Fixation point Astigmatism Astigmatism test has two presentations – with hour and angle description. To change form one presentation to another press again button. Cross cylinder test has two presentations – with white or black background. To change from one presentation to another press again button.
5.5. Custom tests ‘Custom tests’ To enter press ‘?’ button. Pic.11. Custom tests Hearing Impaired Mode • • Crowding Bars • Animations HOTV test • 3D image • Colour Pictures For Children • Amsler Tests • Description of the IR remote •...
5.5.1. Hearing and Speaking Impaired Tests The Chart Panel allows for communicating with hearing and speaking impaired patients not only during a regular examination, but also when they are being refracted. This mode is designed to enable giving instructions and asking questions of deaf patients.
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Snellen E • Landolt Rings • HOTV test • Sample instructions for hearing and speaking impaired patients: I. Instructions for patients being presented with: Sloan Letters, Numbers and Standard Pictures: When two bars, blue at the bottom and green at the top of the display are •...
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Professional charts are available from many distributors of visual acuity equipment. The chart can be simply a handout with big letters HOTV printed on it. NOTE ! The examiners are free to apply to HOTV test the same procedure as with Letters, Numbers and Pictures, but matching technique seems to provide more precise answers.
5.5.4. HOTV tests HOTV tests are popular matching tests in testing pre-school children and illiterate as well as mentally ill adults. If matching option is unavailable, this test can be conducted in a standard way. Pic.14. HOTV Tests There are 6 options of HOTV tests: •...
5.5.5. 3D Images As a standard there is installed only one 3D red-green image. 5.5.6. Colour Pictures For Children There is a wide range of colour pictures (showing different animals) to enable testing pre-school children. Animals appearing in the test are the most popular ones, to make possible testing of the youngest children.
5.7. Street lamp test Press to display Street lamp test. Press Right Arrow or again button to display next presentation of Street lamp test. Press Left Arrow to return to previous presentation. 5.8. Ishihara tests Press to display first Ishihara test. Press Right Arrow to display next test.
Press ‘CNT +/-’ button do change contrast level. The first HINT ! contrast level is 5%. Each time ‘CNT +/-’ button is pressed, contrast level is increased with 10% step (apart from 5% to 10% step). Press Right Arrow to display Landolt ring charts. a) Press Down Arrow to display smaller size optotypes.
Contrast will increase with 10% steps. When it reaches 100%, it will loop back to Pic.12. Contrast test 5.11. Eye anatomy pictures In TCP-2000 Chart Panel there are available eye anatomy pictures. They can be very helpful when explaining some eye problems to the patient. Press ‘EYE’ button to display first eye picture.
(Snellen, Snellen Modified, Snellen Contrast). Masks can be used with optotype charts only. HINT ! Information that TCP-2000 is in the mask mode is continuously displayed in the left bottom corner of screen. Depending which mask type you are using different shapes are displayed: •...
Pic.18. Single mask 6.2. Horizontal mask Allows you to select horizontal mask over selected chart of optotypes. To activate press Use Arrows to move mask up and down. When working with optotypes with visus 0,1 to 0,25 you can move to the other presentation of same size optotype by pressing left or right Arrow button.
6.3. Vertical mask Allows you to select vertical mask over selected optotype chart. To activate press Use Arrows to move mask in any direction. Press again to deactivate. Pic.20. Vertical mask Masks are not available for LogMar Modified type chart. Instead WARNING ! there is an option of underlining: - a single optotype (with...
6.4. Red-green mask Select any optotype chart. Press to activate mask. If you have red-green mask active you can still use Arrows to change optotypes. Press again to deactivate mask. Red-green mask can be used only with optotype charts. WARNING ! You can not display red-green mask over chart with only one WARNING ! optotype.
7. SOFTWARE VERSION Information about current version of chart panel software is displayed in right bottom part of Configuration Menu screen. Operation Manual...
8. TROUBLESCHOOTING All possible failures are listed in table. Failure Couse Action TCP-2000 Fails to operate Power cord broken or -Check power cord when connected to the power cord not connected -Check power cord connection mains ( Power LED is or no voltage in mains.
9. WARNINGS Exercise care to locate the Chart Panel away from any hazardous sources. • This Chart Panel emits a certain level of electromagnetic radiation that is • within the levels specified by IEC 60601-2-24 and IEC 60601-1-2. • This instrument has been tested against the effects of external interference including high energy frequency emission, magnetic fields and electrostatic discharge (for example large motors, portable radios, cellular phones, etc.).
10. CHART PANEL MAINTENANCE 10.1. Cleaning When carrying out cleaning, the CHART PANEL shall be switched off and • disconnected from mains. After cleaning wait at least one minute before switching on the chart panel. Cleaning shall be carried out using a piece of cloth moistened with cleaning solution.
10.2. Repairs • In order to ensure long life time of Chart Panel, it is necessary to check periodically its status and replace the parts if damaged. In the case on any fault of the Chart Panel immediately consult the •...
11. WARRANTY The Manufacturer warrants the high-quality workmanship of the Chart Panel • for a period of 12 month after the purchase date. The Manufacturer or its authorized representatives takes obligation to carry • out the warranty repair of the Chart Panel or to replace it with an operational one in case the Manufacturer or its authorized representatives determines that the cause of Chart Panel’s failure was related to the manufacturing process.
APENDIX A COMPONENT LIST No Spare part Picture Part Number ANNEX/LETTER IR remote Not shown 40-21108 AC Power cord 2m Not shown 06-49011 Red – Green glasses Not shown 40-21117 Battery for remote control Not shown 31-20701 Operating manual English Not shown 40-21122 Operation Manual...
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