Topcon SL-D7 Repair Manual
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Topcon SL-D7 Repair Manual

Slit lamp
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REPAIR MANUAL
ISSUED............... AUG. 2003
REVISED ............
SLIT LAMP
SL-D7
TOPCON CORPORATION
R-SLD7-0-0308-11

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Summary of Contents for Topcon SL-D7

  • Page 1 REPAIR MANUAL ISSUED....AUG. 2003 REVISED .... SLIT LAMP SL-D7 TOPCON CORPORATION R-SLD7-0-0308-11...

  • Page 2: Table Of Contents

    CONTENTS Page 1. INTRODUCTION ............................1 1-1 How to Use This Repair Manual ......................1 1-2 Precautions for Repairs ..........................2 1-3 Nomenclature ............................3 1-4 Optical Arrangement ..........................7 1-5 Electric Circuit ............................9 2. REPAIR GUIDE .............................11 2-1 Accuracy Check ...........................11 2-2 Adjustment ............................12 2-3 Repairing Order ...........................20 2-3-1 Disassembly and assembly of illumination unit ................21 2-3-2 Disassembly and assembly of power supply unit ................24...

  • Page 3: Introduction

    1. INTRODUCTION 1-1 How to Use This Repair Manual (1) Follow the procedure described in the flowchart below. Trouble Study of cause and details Need to service? Repair Check Is operation normal? Cleaning Packing Completed R-SLD7-0-0308-11...

  • Page 4: Precautions For Repairs

    (1) Disassemble, assemble, repair or adjust the optical system in the clean area where no dust or foreign mat- ter will affect the instrument. (2) For assembly and inspection, refer to the assembly and instruction manual of SL-D7. (3) When repairing this instrument, use proper materials and tools correctly according to this manual.

  • Page 5: Nomenclature

    1-3 Nomenclature For Japan R-SLD7-0-0308-11...
  • Page 6 Control lever Chin rest base plate Cross slide fixing knob Rail cover Cross slide Table Accessory drawer Brightness control dial Power switch Pilot lamp Up-and-down balance spring Microscope arm fixing knob Angle scale Click stop roller Illumination arm fixing knob Arm cover Chin rest up-and-down handle Eyepiece...
  • Page 7 For TMS, TE, TS and General R-SLD7-0-0308-11...
  • Page 8 Control lever Chin rest base plate Cross slide fixing knob Rail cover Cross slide Table Color temperature conversion filter Brightness control dial Power switch Pilot lamp Up-and-down balance spring Microscope arm fixing knob Angle scale Click stop roller Illumination arm fixing knob Arm cover Chin rest up-and-down handle Eyepiece...

  • Page 9: Optical Arrangement

    1-4 Optical Arrangement (1) Illumination system Filament position Slit position (2) Observation system Eyepiece unit Magnification unit R-SLD7-0-0308-11...
  • Page 10 Names of optical units Functions Condenser lens Adjusts the condensing position for the main bulb filament. Filter Selects the blue, red-free, ND, heat absorbing, UV cut, IR cut or exciter filter according to the clinical purpose. Projection lens Projects and focuses the slit image. Diffusion lens Widens the illumination field when photographing the anterior eye section.

  • Page 11: Electric Circuit

    1-5 Electric Circuit For Japan R-SLD7-0-0308-11...
  • Page 12 For Export R-SLD7-0-0308-11...

  • Page 13: Repair Guide

    2. REPAIR GUIDE 2-1 Accuracy Check How to adjust Item How to check and allowance Tools and No. and repair Same focal point Focus at the maximum magnification and Focuse setting of Diopter telescope due to magnifica- then decrease the magnification in turn, 25×, microscope tion 16×, 10×...

  • Page 14: Adjustment

    2-2 Adjustment * Before carrying out adjustment, if the screw lock has been applied to a screw, dissolve it using Isoamyl acetate. Illustration Procedure 1. Focus setting of microscope Loosen the screws 6S4×12S SUS (3 pcs.) fixing the microscope on the arm. Change magnification as looking into the diopter telescope.
  • Page 15 Illustration Procedure 2. Focusing When the microscope unit does not well focus and the slit image is not clear (with magnification drum unit at 16×): Remove the eyepiece unit. Place the diopter telescope and sight a target as Diopter telescope far as possible to check for diopter zero setting.
  • Page 16 Illustration Procedure 3. Optical axis setting Put the eyepiece with scale on the eyepiece unit Standard scale Eyepiece with scale and turn the diopter adjusting ring to adjust Magnification unit diopter. Project a slit as narrow as possible (length: 9mm) on the standard scale. Judge which is wrong, the magnification unit or Eyepiece unit eyepiece unit.
  • Page 17 Illustration Procedure 4. Accuracy setting of pupillary distance prism Nut (44770 1511) Remove the nuts (44770 1511), loosen the CR3×8SUS screws CR3×8SUS (2 pcs. each) and remove the (2 pcs. each) covers (44770 1503, 44770 1504). Put the eyepiece with scale into the microscope unit.
  • Page 18 Illustration Procedure 5. Adjustment of inclination unit rotary force Release the inclination stop lever and incline the illumination unit. If the illumination unit falls by itself while the stop lever is not applied to the stop- per, make adjustment with the screws T4×8S (2 T4×8S (2 pcs.) pcs.) on both sides of the rotary unit for the proper weight and tighten them.
  • Page 19 Illustration Procedure 7. Slit image shift setting when rotating the slit When the rotational center of φ 0.2 moves if the aperture of φ 0.2 is projected on the slit rod screen Eccentric axis and the slit change handle is moved: Put the eyepiece with scale into the microscope V3×6S unit and adjust the diopter with the diopter...
  • Page 20 Illustration Procedure 9. Slit image shift setting when rotating the slit illumination unit horizontally (in 30° right and left each) Put the eyepiece with scale into the microscope V3×8S (2 pcs.) Microscope unit φ 0.2 unit and adjust the diopter with the diopter adjusting ring.
  • Page 21 Illustration Procedure 11. Adjustment of click power of small and large arms Large arm Small arm Adjust the click power for the proper weight with the screws 6SV3×8S (2 pcs.) and 6SU3×6S (1 pc.) and then tighten them fully. * When the illumination arm is rotated, the click 6SU3×6S Click stop should be firmly sensed and it should be pos-...

  • Page 22: Repairing Order

    • White whetstone for slit • Slit holder tool If these tools are required, order them from TOPCON. 3. Before loosening screws, if the screw lock has been applied to them, dissolve it using Isoamyl acetate. When retightening them after repair, apply the fresh screw lock.

  • Page 23: Disassembly And Assembly Of Illumination Unit

    2-3-1 Disassembly and assembly of illumination unit Illustration Procedure 1. Removing the slit unit Disconnect the plug of the lamp house. Plug Remove the lamp house by turning in the arrow Lamp house unit direction. Apply the amyl solvent to the top of the screw. Remove the screws 6S3×16SUS (4 pcs.).
  • Page 24 Important points for assembly Illustration Points 1. When the slit does not close: The slit must always close on the screen of the Slit blade focusing rod. If not, check the slit unit for dust or (40310 2539) foreign matters. If there is no dust or a foreign mat- Main blade ter, carry out as follows.
  • Page 25 Illustration Points In case of the broken slit blade: (a) Make a marking line before disassembly to Marking line Marking line set the slit blade into the original position. (b) Remove the slit blade set screws. (c) First, whet the main blade. (Refer to the illustration on the previous page.) * Place the slit blade on the slit holder tool perpen- Slit blade set screw...

  • Page 26: Disassembly And Assembly Of Power Supply Unit

    2-3-2 Disassembly and assembly of power supply unit Illustration Procedure 1. Removing the plug P7 Remove the screw Screw Remove the upper and lower covers. Remove the screws and then remove Upper cover the socket. Cord bushing Screw Screw 2. Removing the plug P1 Remove the two screws Plug P7 Remove the screw...

  • Page 27: Trouble Shooting (Main Body)

    2-3-3 Trouble shooting (Main body) Reference Trouble Cause Remedy Tool page • Eyepiece with The slit does not Dust is stuck to the Wipe off dust with P.22, 23 close. slit. ether many times. scale Adjust the slit blade. • Eyepiece with The slit is wedge- P.22, 23 shaped.

  • Page 28: Trouble Shooting (Power Supply Unit)

    2-3-4 Trouble shooting (Power supply unit) Does the pilot lamp light The pilot lamp does not light. Inspection 1 when the power switch is ON? The pilot lamp blinks. Inspection 7 Does the The halogen lamp does not light. Inspection 2 halogen lamp light? Does the light intensity of...
  • Page 29 Inspection 1 Inspection Procedure Inspection Details The pilot lamp does not light. Replace the fuses Have the fuses blown? Is the The power switch is faulty. power switch turned Replace ON/OFF? Is the output voltage of the The SW power supply is faulty. SW power supply normal Replace the power supply unit.
  • Page 30 Inspection 2 Inspection Procedure Inspection Details The halogen lamp does not light. Has the halogen The halogen lamp is faulty. lamp burned out? Replace Wiring check (2) Inspection 3 Inspection Procedure Inspection Details The light intensity of the halogen lamp does not change continuously. Does the The light adjusting volume is light adjusting volume...
  • Page 31 Inspection 4 Inspection Procedure Inspection Details The halogen lamp is dark. Is the inside of the The halogen lamp is faulty. halogen lamp soiled with Replace white or black materials? Is the output voltage of the The SW power supply is SW power supply normal faulty.
  • Page 32 Inspection 6 Inspection Procedure Inspection Details R/L is not detected. Is the R/L lock switch set to “A” Set it to “A” (auto). (auto)? Does the Adjust the height of the microswitch operate microswitch. (sound “click”)? Wiring check (6) R-SLD7-0-0308-11...

  • Page 33: Wiring Check

    2-3-5 Wiring check This section describes the special checks that are required when the problem is diagnosed as “Wiring check” in the frowcharts of “2-3-4 Trouble shooting”. The number in parentheses for the wiring check in “2-3-4 Trou- ble shooting” corresponds to “No.” in the following table. Use the tester to check between “From”...

  • Page 34: Electric Parts Arrangement

    2-3-6 Electric parts arrangement (1) PS-70/PS-70A/PS-70E Power supply * PS-70E (for TE) is equipped with the insulation plate and fireproof plate. R-SLD7-0-0308-11...
  • Page 35 (2) Halogen lamp cord R-SLD7-0-0308-11...
  • Page 36 (3) Halogen lamp and socket R-SLD7-0-0308-11...
  • Page 37 (4) External fixation target (5) Cross slide unit R-SLD7-0-0308-11...

  • Page 38: List Of Electric Part Numbers

    2-3-7 List of electric part numbers Part name Symbol Order No. Rating Remarks Power switch 44770 60520 SF-W201A-30BB (Echo Denshi) Pilot lamp LED1 40416 51260 DB-1 (Green) (Sato Parts) Fuse F1, F2 44635 60030 5TT1 (Bell Fuse) Japan/TMS Fuse F1, F2 44770 63510 5TT750 (Bell Fuse) TE/TS/General...

  • Page 39: List Of Repair Tools

    2-4 List of Repair Tools 2-4-1 List of special repair tools Tool Function/ Name Illustration Application Remarks accuracy • Setting the same focus by Diopter Observation telescope magnification magnification (3.4×) • Setting the parallelism of Eyepiece with Eyepiece mag- scale nification the slit image •...
  • Page 40 Topcon House,Kennet Side,Bone Lane,Newbury,Berkshire RG14 5PX United Kingdom Phone:01635-551120 Fax:01635-551170 TOPCON SOUTH ASIA PTE.LTD. Blk 192 Pandan Loop, #07-01 Pantech Industrial Complex, SINGAPORE 128381 Phone:62780222 Fax:62733540 www.topcon.com.sg TOPCON INSTRUMENTS ( MALAYSIA ) SDN.BHD. Excella Business Park Block C,Ground & 1st Floor,Jalan Ampang Putra,Taman Ampang Hillir, 55100 Kuala Lumpur,MALAYSIA Phone:03-42701068 Fax:03-42704508 TOPCON INSTRUMENTS ( THAILAND ) CO.,LTD.

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