topcon-trc-nw8

Need Your Topcon TRC-NW8 Repaired?

Tell us what’s wrong with your unit– we’ll arrange picking it up, and repair it back to factory specifications. Although your instrument may no longer be supported by the manufacturer, we produce a variety of original parts to ensure future service for the lifetime of your instrument.

 

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  • Take out the instrument body from the cardboard box and put it on the table. Before transporting, make sure that the back-and-forth and right-and-left movement of the base stops because of the fixing knob. If the base moves, turn the fixing knob to stop it. When carrying the instrument body, firmly hold it at the following specified positions.

  • Loosen the fixing knob.
  • Slightly raise the control lever and take out the cushion from the lower part of the base in the arrow direction.

  • Wipe the sliding board with a cloth, etc. to remove dust.
  • Remove the styrofoam from the transportation bracket (the one on the left hand side as viewed from the chin-rest side,), slide the base to the left and unscrew the transportation bracket.
  • Slide the base to the right and unscrew the transportation bracket with the screwdriver.
  • Fasten the rail covers, using the small screws that are attached.
  • Affix the chin-rest tissue paper with the chin-rest tissue pin.

Installing the digital camera:

  • Remove the cap from the digital camera to be installed.
  • Align the positioning mark of the instrument with the mark on the digital camera’s mount.
  • Turn the digital camera clockwise until a “click” is heard.

Confirmation after assembly:

  • Make sure that the input voltage is within ±10% of the rated voltage for the instrument. If the input voltage exceeds this range, use a constant-voltage power supply (marketed: 400VA or more)
  • Loosen the base brake knob, and move the control lever to verify that it moves smoothly.
    1) Right-left movement
    2) Back-forth movement
    3) Up-down movement
  • If the instrument body is slightly off level, finely adjust the height by properly turning the four adjusters. Do not extend the adjusters past 1cm.

Connecting the power cord:

  • Make sure the Power switch of the instrument body is off.
  • Attach the power cord to the instrument body.
  • Plug the power cord into a proper outlet with grounding.

Setting of auto-focus:

Set the auto focus function ON/OFF. When auto focus is set to ON, focusing is automatically done when taking a picture.

  • In the Menu, make sure “auto” is selected.
  • Select Focus.
  • Select “on” or “off” and press Enter. The selected data is set.

Setting of auto-shoot:

  • Set the auto shoot function ON/OFF. The auto shoot mechanism works as follows: when the fitted alignment bright spot is put into ( ) in the focalized status, the instrument takes a picture automatically without pressing the photography switch.
  • In the Menu, make sure “auto” is selected and press Enter.
  • Select Shoot.
  • Select “on” or “off” and press Enter. The selected data is set.

Setting of auto small pupil:

  • Set the auto small pupil function ON/OFF. The auto small pupil mechanism works as follows: when the pupil diameter of the patient is too small to take a picture, the instrument automatically changes to the small pupil diaphragm.
  • In the Menu, make sure “auto” is selected and press Enter.
  • Select Small Pupil.
  • Select “on” or “off” and press Enter. The selected data is set.
Fixation target pattern:
  • Move the cursor to Fixation on the Menu screen, and press Enter.
  • Select Peripheral.
  • Using the cursor, select desired pattern from the following:
    “4A” (diagonal 4 positions)
    “4B” (vertical-horizontal 4 positions)
    “5A” (diagonal 4 positions + center)
    “5B” (vertical-horizontal positions + center)
    “8POINT” (8 positions), or
    “9POINT” (8 positions + center)

Setting the illumination level:

Set the illumination level using the Illumination Level Switch. You can verify the current level using the illumination level display on the color LCD monitor.

Normally the illumination level has five steps. When the instrument is first turned on, the illumination level is set to level 3.

Setting the flash level:

Set the flash level using the Flash Level Switch. The compensation value can be checked with the flash level compensation display on the color LCD monitor.

  • The flash level can be compensated in four steps in both the (+) and (-) directions from the reference value.
  • When the flash level is the reference value, no compensation value is displayed.
  • When the instrument is first turned on, the flash level is set to the reference value.
  • You can adjust the reference value of the flash level in four steps in both (+) and (-) directions.
  • The flash level display can also display the light intensity level (unit: W·s) in addition to the compensation value.
  • When the flash level compensation display is changed to the higher level by one step, the flash level is increased by approx. 20%.

Changing the diopter compensation lens:

Pull out the diopter compensation lens selector and change the diopter compensation lens for the patient’s eye.

Centering and Photography:

The centering operation is done with the control lever. Fine movements of the base, back and forth and right and left, are done by tilting the control lever.

  • Hold the control lever and pull the instrument backwards toward the operator. As the internal fixation target flickers, instruct the patient to look at the fixation target in the center. Observe the anterior segment image on the color LCD monitor.
  • Move the instrument body using the control lever until you get the patient’s eye centered in the color LCD monitor.
  • On the color LCD monitor, bring the ( ) scale towards the patient’s pupil, and make sure that the pupil is larger than the ( ) scale.
Comparison of the ( ) scale and the pupil tells you whether the pupil is large enough for retinal photography. The following pictures are provided as a reference.
Error message Explanation How to cancel
CHECK CAMERA!! Camera connection error
Check the connection of the USB. If it is necessary to connect the USB again, turn OFF the power. Connect the USB correctly and then turn ON the power again.
NO SDCARD!! The SD card is not inserted. Insert the SD card or set “OFF” for the SD card.
SD FULL OR LOCKED!!
(USB MEMORY FULL!!)
The SD card is locked or it does not have free capacity. (The USB memory does not have free capacity.) Delete the images on the SD card (the USB memory). If they cannot be deleted, check if the SD card is locked.
CHECK USB!! The destination for the USB connection is not found.
Check the connection of the USB. If it is necessary to connect the USB again, turn OFF the power. Connect the USB correctly and then turn ON the power again.
INTERLOCK ERROR!! The cover is open. Close the cover.