Nidek Medical AR-600 Series Service Manual
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Nidek Medical AR-600 Series Service Manual

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NIDEK
AUTO REF/KERATOMETER
AR-600/ARK-700 SERIES
SERVICE MANUAL
(For adjustment)
MAR10*RDA004A/E
Total Page 52
2002.03

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Summary of Contents for Nidek Medical AR-600 Series

  • Page 1 NIDEK AUTO REF/KERATOMETER AR-600/ARK-700 SERIES SERVICE MANUAL (For adjustment) MAR10*RDA004A/E Total Page 52 2002.03...

  • Page 3: Table Of Contents

    Page § 1 PRECAUTIONS ......................1-1 § 2 TROUBLESHOOTING ....................2-1 § 3 SUB TROUBLESHOOTING ..................3-1 3.1 Can Not Perform the AR Measurement Normally............3-1 3.2 Can Not Perform the KM Measurement Normally...........3-2 § 4 ADJUSTMENT ......................4-1 4.1 Optical Axis Adjustment of Phototransmitter /Photoreceptor ........4-1 4.2 Optical Axis Adjustment of Chart ................4-3 4.3 Three-Point Relation among SPD, Mask and LED ..........4-6 4.3.1 Check of three-point relation among SPD, mask and LED......4-6...
  • Page 4 4.13 KM Optical Axis Adjustment ................4-23 4.14 KM Calibration .....................4-29 4.15 KM AXIS Check and Correction................4-30 4.16 Tilt Adjustment of Chart..................4-31 4.17 PD Adjustment......................4-31 4.18 Auto-Tracking Adjustment ...................4-33 4.19 Auto-Shot Adjustment ..................4-34 4.20 Chart Calibration/CYL Lens Adjustment .............4-35 § 5 REFERENCE ........................5-1 5.1 DIP Switch Function Table..................5-1 5.2 Error Code Table.......................5-2...

  • Page 5: Precautions

    § 1 PRECAUTIONS ・ This manual describes the adjustment method of the NIDEK AR-600/ARK-700 series. ・ This manual is intended for references of engineer training and adjustment by trained personnel. ・ Only qualified personnel who received the necessary training should perform repair and adjustment of the system.

  • Page 6: Troubleshooting

    § 2 TROUBLESHOOTING Turn the system on. Does the A board etc. may fall because of the initialization start without the Err at malfunction other than the startup? adjustment. (The Err appears at the AR or KM Repair the system according to the measurement, or the measured value is AR-600/ARK-700 series...
  • Page 7 2 - 2 Measure the model eye while the auto- Adjust the auto-shot function. shot function is on. (See 4.19.) Does the auto-shot function work normally? Does the chart work normally at the Perform the chart calibration. AR or KM measurement? (Pressing (See 4.11.) the start button brings the chart into (As for the AR-660A/ARK-760A, see...

  • Page 8: Sub Troubleshooting

    § 3 SUB TROUBLESHOOTING 3.1 Can Not Perform the AR Measurement Normally. Measure the model eye. The SPH value is out of the standard. → Perform the SPH calibration. Can the measure be performed even if the measured value is out of the (See 4.7.) standard? The CYL value is out of the standard.

  • Page 9: Can Not Perform The Km Measurement Normally

    3 - 2 3.2 Can Not Perform the KM Measurement Normally. measurement measurement performed? performed, but the measured value is out of the standard. → Perform the KM calibration. (See 4.14.) The KM optical axis is misaligned. Check and adjust it in the following order.

  • Page 10: Adjustment

    § 4 ADJUSTMENT 4.1 Optical Axis Adjustment of Phototransmitter /Photoreceptor [Optical axis check of phototransmitter/photoreceptor] 1. Attach a lamp in front of the SPD holder to illuminate the photoreceptor. 2. Put a piece of white paper in front of the LED. 3.
  • Page 11 4 - 2 2. Turn the holder of G8+G9+G10 to align the photoreceptor height at +12D with the aperture center. 3. Repeat Step 1 and 2 to align the photoreceptor height with the aperture center. [Adjustment of photoreceptor in horizontal direction] 1.

  • Page 12: Optical Axis Adjustment Of Chart

    4 - 3 4.2 Optical Axis Adjustment of Chart [Optical axis check of chart] 1. Attach the illumination jig in front of the SPD holder to illuminate the photoreceptor. 2. Put a piece of white paper in front of the measuring LED. 3.
  • Page 13 4 - 4 When adjusting the optical axis of the chart, adjust the chart in vertical direction. [Adjustment of chart in vertical direction] 1. Turn the holder of G6+G7 to align the chart height at +12D and –12D with the aperture center.
  • Page 14 4 - 5 [Important] 1. When G6 + G7 is fixed with set screws, there may be a displacement in both vertical and horizontal directions. In such a case, tighten the screws paying attention to the horizontal direction and turn the holder again if there is a displacement in the vertical direction.

  • Page 15: Three-Point Relation Among Spd, Mask And Led

    In the AR-600 series, the shield plate is removed in the same manner. 2. Remove the LED base L. * The right figure shows ARK-700 series. In the AR-600 series, the LED base L is removed in the same manner. Shield plate Mire 3.
  • Page 16 4 - 7 In Step 6 and 7, make sure that the SPD and mask Mask photoreceptor photoreceptors are perpendicular as the right figure shows. SPD photoreceptor 6. Set the sensor plate on 5047 (SPD unit) at the 0º position (top). * The mask photoreceptor can be seen by 0º...

  • Page 17: Perpendicular Adjustment Of Spd And Mask Photoreceptors

    4 - 8 4.3.2 Perpendicular adjustment of SPD and mask photoreceptors 1. Loosen HH3×4 (n=2) retaining 5041 (timing pulley). * The SPD unit and mask unit turn seperately. 2. Set the shutter on 5047 (SPD unit) at the 0º position (top). Mask unit 3.

  • Page 18: Tilt Adjustment Of Led Lights And Mask Photoreceptor

    4 - 9 4.3.3 Tilt adjustment of LED lights and mask photoreceptor 1. Set the DIP switch No.4 and No.5 on the PC1 board to the ON position. 2. Turn the power switch on and press (IOL button). Press the START button on the joystick to place the system in “Test mode 1”.

  • Page 19: Led Adjustment In The Middle

    4 - 10 When the LED lights has become to be parallel to the mask photoreceptor, make sure that the LED lights are positioned in the middle of the mask photoreceptor as the right figure shows. If not, perform “4.3.4 LED adjustment in the LED lights are in the middle of mask photoreceptor.

  • Page 20: Check After Adjustment Of Three-Point Relation Among Spd, Mask And Led

    4 - 11 After “4.3.2 Perpendicular adjustment of SPD and mask photoreceptors”, “4.3.3 Tilt adjustment of LED lights and mask photoreceptor” and “4.3.4 LED adjustment in the middle”, perform “4.3.5 Check after adjustment of three-point relation among SPD, mask and LED”. 4.3.5 Check after adjustment of three-point relation among SPD, mask and LED 1.

This manual is also suitable for:

Ark-700 series

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