Topcon VisiChart User manual

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Table of Contents

System Components ....................................................................................................... 2

Mounting the VisiChart .................................................................................................... 2

VisiChart Features........................................................................................................... 7

Turning the VisiChart On................................................................................................. 8

Turning the VisiChart Off................................................................................................. 8

Configuring VisiChart ...................................................................................................... 9

VisiChart Remote Diagram............................................................................................ 12

Using the VisiChart........................................................................................................ 13

Troubleshooting Procedures ......................................................................................... 14

Hardware Specifications................................................................................................ 15

System Components

• VisiChart all-in-one system

• Wall Mount Adapter Plate

• Wall Mounting Bracket & Hardware

• Two AAA Batteries

Mounting the VisiChart

Direct View – When mounting the VisiChart directly in front of the patient, the center of the monitor should be approximately 54” off the floor and centered in front of the patient sitting in the exam chair. Recommended minimum direct view distance from patient is 3 meters. (Approximately 10 feet)

Mirrored View – When mounting the VisiChart behind the patient and using a mirror to increase the total refraction distance, the center of the VisiChart should be located 78” off the floor and 18” from the center of the chair, opposite the stand, so that the near-rod does not interfere with the image presented in the mirror.

Electrical: It is recommended that a standard electrical outlet is installed behind the

VisiChart for best appearance, however the VisiChart can be plugged into any outlet within five feet of the mounting location.

Remote Control Sensor: Plug the USB connector into any USB port on the side of the

VisiChart. Attach the sensor to the VisiChart with the enclosed Velcro pad to any location facing into the exam room. Bundle and conceal the cable behind the VisiChart.

Note: The use of fluorescent lighting in the exam room will decrease the sensitivity of the remote control. Incandescent lighting during VisiChart use is recommended.

Wall mounting the VisiChart

1. Remove the silver plastic cover on the rear of the VisiChart to expose the screws which attach the table mount base. (Figure 1)

2. Loosen the four M4 Phillips screws and remove the hinge and base. (Figure 2)

3. Using the M4 screws, attach the wall mount adapter plate. (Figure 3)

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4. Tighten the four screws securely. (Figure 4)

5. Installation of the wall mount adapter plate is now complete. (Figure 5)

Note: For the wall mount bracket installation, a qualified installer should follow the instructions which are included with the bracket.

Figure 1

Figure 2

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Figure 3

Figure 4

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Figure 5

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VisiChart Features

Charts

• Snellen

• HOTV

• Numbers

• Contrast

Isolations

• Three Lines Same Size

• Pointer for Horizontal and Vertical Lines

Additional Features

• Customizable Test Sequence

• Red/Green Duochrome available for all charts

• White Optotypes on Black Background available for all charts

• Worth 4 Dot Test

• Single Fixation Dot

• Full Randomization of all charts

• Corner Size Indicator

• Astigmatic Dials and Fixation Disparity

• Cycle Timer for hands-free randomization

• Size buttons for 20/10 – 20/400

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Turning the VisiChart On

1. To turn the VisiChart on and begin testing press the power switch on the front of the system

2. VisiChart will automatically launch to the Snellen Chart

Turning the VisiChart Off

1. Exit VisiChart by pressing ALT + BLACK on the remote control

2. VisiChart will exit to Microsoft Windows

3. Press the power switch on the front of the system and the system will power off

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Configuring VisiChart

1. Plug the keyboard and mouse into the VisiChart before starting the system.

2. VisiChart will launch.

3. Press “?” on the keyboard to enter the configuration screens.

4. Set the distance, measuring from the bridge of the nose to the VisiChart. With a mirrored room, measure from nose to mirror and the mirror to the VisiChart, adding these numbers.

5. Set Direct or Mirror.

6. Click Next.

7. Set the 10 cm by 10 cm square.

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8. Click Next.

9. Set the Black Screen Timer if desired, the display will go to a black screen in the set number of minutes.

10. Set the Random Letter Timer if desired.

11. Set whether to Show Screen Size Note this can be toggled with ALT + W4D.

12. Set whether to use a Green or Blue Worth 4 Dot.

13. Click Next.

14. Optional – Click Next to continue without modifying the default chart options.

15. The Default Chart can be adjusted, changing the number of rows and number of optotypes shown per line.

16. Check Always Random to never show the default chart.

17. Using the Select Opto Size here for settings choose a line of the chart.

18. The Number of lines displayed and Number of Characters per Line as well as the Default Characters can now be set.

19. Repeat 17 and 18 for each line.

20. Click Next to continue.

21. Optional Test Sequence (Protocol) Setup – click Next if a customized sequence is not needed.

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22. Choose a Size, Chart and Function using the drop-down controls and click Add.

23. Continue adding charts.

24. By clicking on the newly added row, use Move Up and Move Down to order the list.

25. Use Delete to remove any item not needed.

26. When complete click Next.

27. The main calibration screen is again shown, click Done.

28. The VisiChart is now ready for use!

29. The Snellen Chart will be displayed.

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VisiChart Remote Diagram

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Using the VisiChart

VisiChart is controlled with the remote control. The chart below provides information on each function

Button Function

ALT Provides access to lesser used functions

W4D

LTR

Worth 4 Dot Test

Snellen Letter Chart

E

PIC

Tumbling E Chart

Allen Pictures Chart

Round L & R Randomize the current chart

Round U & D Increase/Decrease chart size

RG Red/Green Duochrome Chart

CYC

MISC

Randomize the chart every four seconds

Custom Chart Sequence

VLINE

3LINE

Vertical Line descending in size

Three lines of same size

Up/Down

Arrow

400 – 10

Increase/Decrease Chart Size

Add a pointer to the Horizontal or Vertical Line – use up/down to move

Directly set the top line of the chart or the horizontal line to be that size

NOTE: For ALT functions, the ALT key should be pressed and released.

ALT - MISC Astigmatic Dials and Fixation Disparity

ALT - BLACK Exit VisiChart

ALT - W4D Toggle the Corner Size Indicator

ALT - HLINE Reverse the chart for white optotypes on black screen

ALT - RG Contrast Line – Use Up/Down to increase/decrease contrast percentage

ALT - HOTV Fixation Animation

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Troubleshooting Procedures

The VisiChart troubleshooting section summarizes some common issues and possible areas to check to resolve the problem. If the matter is related to

VisiChart operation, please refer to other sections of this User’s Manual for detailed information on the operation, adjustment, and features of the VisiChart.

If the issue cannot be resolved by using the trouble-shooting guide, a Topcon authorized customer service technician should be called upon for assistance.

1. VisiChart does nothing

(no power light or function)

2. VisiChart is ON, but does nothing (Black Screen, no function from remote control)

3. VisiChart is ON and displays a chart, but does not respond to remote control.

4. VisiChart begins to start, but an error during start-up occurs before displaying a chart.

5. VisiChart begins to start, but a “keyboard not found” error during start-up occurs before displaying a chart.

1a. Check to see if the VisiChart is connected to the

AC power source, and that the power source is live.

1c. Check cabling for damage.

2a. Unplug and re-plug the IR sensor.

2b. Check remote control batteries.

2c. Press power button to restart system.

3a. Unplug and re-plug in IR sensor.

3b. Check remote control batteries.

3c. Press power button to restart system.

4a. Press power button to restart system.

4b. Call Topcon customer service for assistance.

5a. Verify that the IR sensor is firmly plugged into a

USB port and restart the system by pressing the power button.

5b. Call Topcon customer service for assistance.

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Hardware Specifications

Operating System

Windows® XP

Processor

Intel Pentium 4

Chipset

i945g chipset

Dimensions/ Weight

16.1"W x 13.9"H x 3.78"D (w/o stand)

16.1"W x 17"H x 8.5"D (w/stand)

25.5 lb (w/stand)

21.6 lb (w/o stand)

Memory

512k DDR2 SDRAM

Video

Integrated Intel GMA graphics

Display

17" SXGA LCD panel, 1280 x 1024

Storage

80GB 2.5" hard drive, DVD/CD-RW combo drive

Network Interface

Integrated Intel 10/100/1000 Gbit Ethernet

Wireless LAN

802.11b,g wireless LAN

Audio

2-Channel High-Definition audio, integrated 2x speakers

Expansion Slots

Two Type II slots, or one Type III PCMCIA slot

I/O Ports

Two PS/2 ports (keyboard/mouse)

Four USB 2.0 ports (4x on chassis)

One serial port

One parallel port

One RJ45

One VGA

Audio ports (Mic-in, Line-in, Line-out)

Power

Input: AC/100~240V (50/60Hz) 4.0A

Certification

FCC, CE, UL

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Topcon Medical Systems, Inc.

37 West Century Road

Paramus, NJ 07652

800-223-1130 www.topconmedical.com

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