Leica WILD M695 User's Manual
Contents
1. A FOCUS MCTOR ES 1 OPTICS CARRIER MSS 88889 xum ml lt i S AES 1 P32 ___ Go ns e GP eee o Ew uS 09 v iw ED 0 gurmeu von tir 0 Oo myn ze 16 Tp J20 Color of wir2s Ino bright blue br bi it not otherwise specitied areall connectors shown rom connection side o 2 20 Bo Se 09 6 9 9 o 150nF 10 400V 10 HOV 6CHZ 230 125 SCHZ Verdrahtung Wiring M695 gt Leica Servce Manual M695 DOC CODE SML 636 718 69 93 3077 HWE Service Manual M695 Doc Code 636 718 Replace X Y slide Replace gas spring of swingarm Replacing swingarm cable Contents Replacing modules 09 93 3691 DMF Service Manual M695 Replacing modules Doc Code 636 718 09 93 3691 DMF Replace X Y slide Remove 2 screws 1 and cover 2 Remove 6 hollow screws 3 and X Y slide 4 After each manipulation inspect the functioning feica 10 1 Replacing modules Service Manual M695 993 369DMF 636 718 Replace gas spring of swingarm MSV 136 137 Set counterbalance to 10 Remove 2 screws 12. MIL LC domns an RECEIVER BOARD XY SERVO BOARD MEL61 62 only ohne Funktion im M695 without any function at M695 9 6 feica Service Manual M695 Verdrahtung Wiring Doc Code 636 718 10 94 3077 HWE Steuergerat MEL61 62 und MEL64 65 Front Control unit MEL61 62 and MEL64 65 Front section PANEL BOARD q r a Rh D Mi D L a SS 2 Ie X MEL64 65 e MEL61 62 WA AN e 6 e e Verdrahtung W iring 09 93 3077 HWE 9 8 Schwenkarmkabel Stecker zum Steuergerat Swing arm cable Connector to control unit Service Manual M695 Doc Code 636 718 Service Manual M695 Doc Code 636 718 Schwenkarmkabel Stecker zum Mikroskop M695 Swing arm cable Connector to microscope M695 Verdrahtung W iring 09 93 3077 HWE Verdrahtung W iring Service Manual M695 09 93 3077 HWE Doc Code 636 718 Mikroskop M695 Ansicht auf U Trager Microscope M695 View to U carrier LAMP CONTROL P20 P23 P22 2 Service Manual M695 Verdrahtung Wiring Doc Code 636 718 09 93 3077 HWE Mikroskop M680 Ansicht auf Zoom Servo Microscope M680 View to zoom servo ZOOM SERVO Verdrahtung W iring Service Manual M695 09 93 3077 HWE Doc code 636 718 Mikroskop M695 Ansicht auf motorische Fokussierung MOB Microscope M695 View motorized focusing MOB 9 12 mm wn
3. Schwenkarm Swingarm MSV136 137 Service Manual M695 Doc Code 636 718 Referenz auf Boards Reference to boards Boards finden Sie anhand der Liste und der nachfolgenden Abbildungen The location of boards is shown by the list referring to following pages Board Seite Page Focus Servo 9 12 Function Display 9 6 Lamp Control 9 10 Panel Board 9 7 Receiver Board 9 6 Zoom Servo 9 11 XY Servo Board 9 6 Einheit Unit Mikroskop Microscope M695 Steuerger t Control unit MEL61 62 MEL64 65 Mikroskop Microscope M695 Steuerger t Control unit MEL61 62 MEL64 65 Steuerger t Control unit MEL61 62 MEL64 65 Mikroskop Microscope M695 Steuergerit MEL61 62 Control unit MEL61 62 keine Funktion im M695 no function with M695 Verdrahtung W iring 10 94 3077 HWE Verdrahtung W iring Service Manual M695 10 94 3077 HWE Doc Code 636 718 Steuergerat MEL61 62 Anschlussplatte Control unit MEL61 62 Connector panel J16 6 17 4276 10U1N02 V T081N0J 8 LINNA 00 9 4 Seica Service Manual M695 Doc Code 636 718 Verdrahtung Wiring 10 94 3077 HWE Steuergerat MEL64 65 Anschlussplatte Control mit MEL64 65 Connector panel J16 17 4276 1041809 Y 10 1 02 8 13811 dV 9 5 FUNCTION DISPLAY Verdrahtung W iring Service Manual M695 10 94 3077 HWE Doc Code 636 718 Steuergerat MEL61 62 und MEL64 65 Ruckwand Control unit MEL61 62 and MEL64 65 Rear section Arc LI
4. and parallel bar 2 Remove washer 3 and parking piece 4 Note The hole to hole distance of the parallel bar can noc Leica be set by turning the eccentric sleeve 5 WILD MICROSCO en beer SUE 10 2 feica Service Manual M695 Doc Code 636 718 Replacing modules 09 93 3691 DMF Release screw 1 disengage safety hook 2 Pull swingarm down until spindle 3 and screw 4 are tension free Remove spindle 3 screw 4 and parallel bar 5 10 3 Service Manual M695 Replacing modules 09 93 3691 DMF Doc Code 636 718 Remove spacer ring 1 safety ring 2 and pin 3 Assembly Fit pin 3 with longer end towards safety hook Remove gas spring 4 from mount 5 and unscrew it Assembly Screw gas spring fully in and then unscrew by up to turn until swingarm bearing and gas spring bearing coincide 10 4 Service Manual M695 Doc Code 636 718 Replacing modules 09 93 3691 DMF Replacing swingarm cable Screw off cover ring 1 and cut off cable tie 2 from cable duct 3 Remove 2 screws 4 and extract plug plate 5 complete with Lemo plug Open AMP plug and push contact pins out to the rear Pull cable out from swingarm Note Tie a 1 5 metre long string to the cable so that it is easier to pull in Assembly Bundle together the contact pins of the new cable and bind them with adhesive tape Raise the swingarm to its highest position
5. rt J33 sw feica 11 1 Replacing boards Service Manual M695 09 93 3691 DMF Doc Code 636 718 M695 optics carrier Replace lamp control board Remove 3 screws 1 and bracket 2 Pull out 4 plugs 3 Remove 2 countersunk screws 4 2 cheese head screws 5 and the lamp control board 6 J20 16 5 4 17 11 12 13 GND 16 15 6 9 8 1418 ia Service Manual M695 Replacing boards Doc Code 636 718 09 93 3691 DMF Control unit MEL64 65 Replacing panel board Remove 4 screws with washers 1 Remove knob cover 2 and knobs 3 Open front cover 4 Pull out 2 plugs Unscrew and remove 4 screws 5 Remove panel board 6 Assembly The maximum permissible gap between knobs and front cover is 0 5mm Adjust the rotation range of the knobs max 0 5mm Jfeica 11 3 Replacing boards Service Manual M695 09 93 3691 DMF Doc Code 636 718 Replacing receiver board Remove spacer nut 1 Pull plug out from ii receiver board 2 Remove receiver board Replacing display board Remove 2 screws with washers 3 and take out function display 4 Assembly Align LEDs with display window 11 4 eica Service Manual M695 Doc Code 636 718 Contents Section 1 Inspecting the hand footswitch functions and function display on the MEL64 65 2 Lamp control 3 ZOOM control 4 FOCUS control 5 Optics 6 Tiltable joint swingarm Test report Inspe
6. E zer LEd 6 S 3 Ar Ava 01 18 6 Testset 09 93 3077 HWE Service Manual M695 Doc code 636 718 9e OS9 Se9N 1531 IDSJLNDD JdUYySUSJIW SN3S 04 s22903UuUo5 Suujowau WALNOD 3dOYSODSIIWN m S ST 1 38 d E 4 1 3 04 v A VAY a 9 U N 133d 03 NOWWO Va III VOL JINDV 8 N T v 5 18 7 Testset Service Manual M695 Doc code 636 718 09 93 3077 HWE A LIWII NOILI33IU A NUILO3MIG GAN UND O X NDILO3S3IG X NUILIO23eIG X X NOILISOd AX DND O3 S4204uo 2 Buuowau OS9 Se9N XOELSAL 888 Lea 18 8 Testset 09 93 3077 H WE ce cable M695 M680 The service cable enables you to say whether the fault is in the control unit or in the swingarm Se Service Manual M695 Doc code 636 718 for bridging the swingarm SO ON Y Y 3 QA a 9939 Ael ADE Ave deeg EEID X 1 A 11238 X NUILO33IC A A NUII23SIC X AX DND 6 5 4 o 11 le NU 1203 V 7 AX INS dn 1203 H 03395 WODZ 8 NOLL VILAINOVW ISOSJIH Ave 831N39 03395 1503 INDd dN WOOZ 43143 43395 WOOZ V 339 dwy dN 1303 V NG WDDZ V JSUMJIN Ave IN WUDZ V 248 3 6 2 10 7 14 15 13 17 16 12 118 11 NG 57303 8 Wo
7. Liability This document is strictly for the use of qualified service engineers with the requisite technical skills Only persons who have successfully completed the appropriate service training provided by Leica AG Heerbrugg and are in the employ of a Company in the Leica Group or of an agency distributor or Service Workshop duly authorized by Leica AG Heerbrugg have the status of qualified Service engineer Leica AG Heerbrugg accepts no liability whatever for direct or indirect damage that may occur due to the unauthorized or improper use or interpretation of this document by any person who is not a qualified service engineer in accordance with the above definition 1 1 Service Manual M695 Legal guestions Safty Rechtsfragen Sicherheit Doc Code 636 718 09 93 3691 DMF F r die Servicetechniker und Servicetechnikerinnen gelten folgende Pflichten Sie verstehen und befolgen die Sicherheitsinformationen und die Instruktionen auf dem Produkt sowie in der Gebrauchsanleitung e Sie kennen die orts blichen gesetzlichen betrieblichen und ausserbetrieblichen Unfallverh tungsvorschriften im Wissen dass sich diese auf dem aktuellsten Stand befinden Sie benachrichtigen Leica schriftlich sobald an der Ausr stung Sicherheitsmangel auftreten Service technicians have the following obligations To understand and follow the safety information and instructions on the product and in the user manual To be familiar with local
8. Preconditions for using this service manual Intended users Technical personnel provided by customer or by LEICA agencies equipped with the testset 566 152 see Section 18 What is expected of Stage 1 Allocation of a fault to one of the main groups the person using the Testset Footswitch Control unit Swingarm Microscope optics carrier e You have read the user manual and can operate the surgical microscope Directions are given in Sections 3 and 4 Stage 2 Locating and eliminating errors at module level e You have been trained in the basics of electronics and mechanical engineering You have been instructed by a technician from your agency or from LEICA AG HEERBRUGG Sections 3 4 and 10 Stage 3 Locating and eliminating errors at board level e You have been trained in the basics of electronics and mechanical engineering You have taken part in an M690 M695 or M680 course Sections 3 to 9 and Section 11 Seica 3 1 Introduction 03 93 3077 HWE Legal aspects Changes Service News Introduction User manual locating faults with the test set Test box Control unit MEL64165 Description of function Service Manual M680 Doc code 656 948 To the contents of service manual This book may only be given to and used by certain persons These are detailed in Section 1 Place Service News on top of the M695 in Section 2 CONGRATULATIONS You are one of those methodical people who also read
9. Vijcroscope SENS PGND GND XY 12V 24V Rotary switch S3 Selects those signals which are assignable either to microscope A or to microscope B Rotary switch 62 Selects the control signals to and from the microscope Voltage distributor 1 10 Measuring ground SENS 18 3 Testset 09 93 3077 HWE XY GEAR at M680 only Diagram on page 18 8 Specifications 18 4 Rotary switch S4 Voltage distributor Measuring ground Voltage measurement Current measurement Service Manual M695 Doc code 636 718 Selects the signals from and to XY GEAR 1 10 GND_XY 3 4 1 digit 5 1 digit Testset 09 93 3077 HWE S WAL A IddnS SJIIMOd 089 SE9N XUS8ISilL H 7 TNOG lt I 3GIS NOTLOINNOD 2 va POOPNe X2 eda AX Z AX UN eu 888 TT or Led 22 19 INAG ed Ag AX Apa OI in IST A T W Are Service Manual M695 Doc code 636 718 18 5 Testset SDLOW LIIL AX AST 3dUOSUNOIW Ave ER 089 S69W 41541 SOLOW LIIL AX LIDA LIIL AX LION JdUOSDSOIW Ave LIDA Service Manual M695 Doc code 636 718 YW o vn x NOILISOd TS el INS d TNOd et EU om gt 81 Av ve 81 Ave 3189 TAAT 62 OTM 29 c MEDII ET N T Mr 130 ZUR T N
10. and pull in the cable Secure cable duct 3 with a cable tie one metre away from the AMP plug 10 5 Service Manual 695 Doc Code 636 718 Plug wires into socket strip P19 in accordance with diagram Inspect continuity of contacts in J36 and J37 Replacing modules 09 93 3691 DMF N ON Y A a WII IX Ad e WDA NS m gt X Im 1934 m Sana a bs D uoc cAIWH p NOTOS AN AX ND i NI 1099 _ AX UN N 48003 cu 33dS 007 4 NOTLVII JINOVH p OSUNOIN Abe cu _ 831832 7 03395 51204 n 831130 7 43345 007 V 338 dWVi San 51205 V co WOUZ V ISA Ave _dN HOOZ V SM 50203 8 x WMD INDd JSN3S dWV1 20 19 VIEW WIRING SIDE 10 6 Service Manual M695 Doc Code 636 718 Contents Motorized focusing Focus servo board M695 Replace lamp control board Control unit Replacing panel board Replacing receiver board Replacing display board Replacing boards 09 93 3691 DMF Page 11 3 11 4 11 4 Service Manual M695 Replacing boards Doc Code 636718 Motorized focusing Focus servo board for motorized focusing Remove 6 screws 1 adapter 2 and upper part of housing 3 Remove 6 screws 4 Raise focus servo board 5 Pull out plug J33 After each manipulation inspect the functioning Schnitt
11. foot handswitch to activate ZOOM UP Reading on test box ZOOM UP Low High lt 0 2V gt 4 75V 3 3 Use foot handswitch to activate ZOOM DN Reading on test box ZOOM DN Low High lt 0 2V gt 4 75V Fault location in ZOOM control page 4 8 3 4 Mechanical zoom movement a Zoom moves uniformly in both directions 12 4 Leica Service Manual M695 Inspection procedure Doc Code 636 718 09 93 3691 DMF 3 5 Inspect zoom range Travel to zoom end positions 7 and 36 using max SPEED Zoom should not touch mechanical stop Relevant magnification is seen centred in window gt a AE 41 Turn FOCUS SPEED potentiometer from min to max and from max to min Reading on test box FOCUS SPEED min max 1 25 1 7V 5V 5 The focus speed s continuously adjustable 42 Use foot handswitch to FOCUS UP Reading on test box FOCUS UP Low High lt 0 2V gt 4 75V 43 Use foot handswitch to FOCUS DN Reading on test box FOCUS DN Low High lt 0 2V gt 4 75V Fault location in FOCUS control page 4 9 4 4 Mechanical focus movement Focus moves uniformly in both directions 4 5 Activate yellow knob on motorized focusing FOCUS reset Focus automatically returns to basic position Use FOCUS UP and DN to travel away from basic position and repeat test feica 12 5 Inspection procedure 09 93 3691 DMF Service Manual M695 Doc Code 636 718 51 Cleanliness of optical components j All surfaces of optical comp
12. regulations relating to industrial and non industrial accident prevention in the knowledge that these regulations are up to date To inform Leica immediately in writing if the equipment becomes unsafe October 94 Jeica Leica AG Heerbrugg REVISION Documentation WILD M695 Service manual Technical description and fault finding Status Edition 09 93 Revision previous new 10 94 Reason for revision M680 control unit MEL61 62 is compatible with M695 Steps to betaken Section Remove page s Number of Introduce page s Number of sheets sheets title sheet title sheet index register index register 2 1 2 9 1 to 9 8 9 1 to 9 8 19 1 19 1 File Insert this sheet Revision in section 2 Leica AG Service Documentation and Training LSG SOM SM SOM and SM Service News Surgical Operating Microscopes No 10 95 To Service staff Date from June 28 1995 3077 HWE Leica AG CH 9435 Heerbrugg Switzerland Workshop binder Service News Service manual M695 Re M695 surgical microscope in conjunction with multifocus objective 445 944 Restriction of illuminated area Inspect the illumination Readjusting the lamp Multifocus objective on M695 Readjustment of the illumination When the multifocus objective is used with the M695 the illuminated area available to the surgeon may be shadowed or vignetted even when the the lamp is correctly adjusted When you use th
13. signals OV SV for ZOOM UP and ZOOM DOWN reach the logics board in the microscope via the swingarm cable The voltage level of ZOOM SPEED depends on the position of the potentio meter on the panel board _______________ eve oF 2000 SPEED min ZOOM SPEED 2 10V 0 25V max ZOOM SPEED 9V 5 Service manual M695 Doc code 636 718 Tasks Motorized focusing Presetting speed of focusing Travelling to centre position after switching on or resetting Description of control unit MEL64 65 Focus control MEL 64 65 Control elements display Footswitch or handswitch Functiondisplay Up down LED on focus servo Focus speed potentiometer Footswitch or handswitch Reset switch on motor driven objectiv MOBxxx 09 93 3077 HWE Pages 5 18 7 5 18 7 5 19 7 5 15 Description of control unit MEL64 65 Service manual M695 03 93 3077 HVVE Doc code 636 718 PANEL BOARD VR FOCUS SPEED 5 16 Leica Service manual M695 Description of control unit MEL64 65 Doc code 636 718 09 93 3077 HWE RECEIVER BUARD SWING ARM P14 JI J36 F ou 28 6 FOC SPEED SCENTER 2 iz FOCUS UP zFOCUS DN RECV LOGIC P2 P3 1 FO P FO DN FUNCTION DISPLAY Description of control unit MEL64 65 Service manual M695 03 93 3077 HWE Doc code 636 718 Control LEDs The function display tells you whether the signals from the footswitch or handswitch are being c
14. the important Section 3 of this manual If a fault develops we will guide you to it with the assistance of Section 4 and the test box The test set helps you to assign the fault to the Footswitch Control unit Swingarm e Microscope The search is then continued at board level with the assistance of block diagrams and the wiring diagram The function description in Section 5 in conjunction with the wiring diagram will lead you to the defective board or cable connection The swingarm is the interface Service Manual M680 Doc code 556 948 Swingarm Description of function M680 microscope Description of function Wiring diagram Exchanging modules Exchanging boards Testing procedure Test set Spare parts Introduction 03 93 3077 HWE The function description in Section 6 in conjunction with the wiring diagram will lead you to the defective board or cable connection The swingarm is the interface The function description in Section 7 in conjunction with the wiring diagram will lead you to the defective board or cable connection The swingarm is the interface Section 9 contains the wiring diagram and a description of the positions of the boards and the plug connections Section 10 includes instructions for exchanging those modules which available as spare parts Section 11 includes instructions for exchanging those boards which are available as spare parts After modules or boards
15. 445 561 Microscope carrier 45 eee ee ee eee 445 562 Microscope carrier 45 70 55 6556 445 494 Swingarm MSV 136 for floor stand 445 740 Swingarm MSV167 for ceiling mount 445 551 Control unit MEL64 for floor stand 445 552 Control unit MEL65 for ceiling mount 445 365 Objective mot foe f 250mm 445 563 Objective mot foe f 325mm 445 564 Objective mot foe f 275mm ee Footswitch 6 functions Beta 445 203 Handswitch 12 functionsn CF Binocular tube MTU ERROR Other accessories eee 8 8 8 8 8 8 8 8 8 8 9 ee qo X s ccoccocococococococococococococococococococococoococococococococcoco c cccccocococ on aeeeeeeeeeegeee P 9 9 060606060606060600600600600600600606060606060606060600600600600600600600600600600600600600600600600600600600600600600006006000060000000000000 0 Seeeeeeeeeeeeeeeg q 9999099099049949089 w 90 60 606060606060600600600606060606060606060060060060060060060060060600606060606060060060060060060606060600600600600600600600600600600600600000000000000 8 Leica 12 7 P r fprotokoll Service Manual M695 09 93 3691 DMF Doc Code 636 718 Test report for M695 1 Test hand or footswitch functions and function display on MEL64 65 1 1
16. 6 718 09 93 3077 HWE Table of content List of signals for swingarm MSV136 137 Chapter Page Power supply 6 1 Microscope control 6 3 Service manual M695 Description swingarm MSV136 137 Doc code 636 718 09 93 3077 HWE List of signals for swingarm MSV 136 137 Reguired values for standard two metre swingarm cable Unless otherwise indicated set the lamp to minimum brightness because the values quoted are only valid under these conditions Power supply SIGNAL CONDITIONS VALUE TOL 24V MICROSCOPE Voltage against PGND Lamp min brightness gt 26V 5 Voltage against PGND Lamp max brightness gt 20V 5 PGND Voltage against SENSE Lamp min brightness gt 50mV Voltage against SENSE Lamp max brightness 250mV Voltage drop against logics level Lamp min brightness gt 4 9V 0 2v Test box Microscope Setting Focus up Voltage drop against logics level Lamp max brightness 4 2 0 8V Test box Microscope Setting Focus up Description swingarm MSV136 137 09 93 3077 HWE Current consumption Microscope 6 2 Lamp min brightness Quick change lamp mount disengaged Lamp max brightness Guiding value 150mA 50mA 3 5A Service manual M695 Doc code 636 718 Service manual M695 Description swingarm MSV136 137 Doc code 638 718 09 93 3077 HWE Microscope control All signals are measured against SENSE Unless otherwise indicated set the lamp to minimum brightness SIGN
17. AL CONDITIONS VALUE TOL LAMP REF Lamp min max brightness 0 3 5V 5 FOCUS SPEED Min Max 1 25 1 7V 5V 5 FOCUS UP Low High lt 0 2V 1 gt 4 75 FOCUS DN Low High lt 0 2V gt 4 75V Z00M SPEED min max 1 84 2 34 5V 4 590 Z00M UP Low High lt 0 2V gt 4 75 B ZOOM DN Low High lt 0 2V gt 4 75 Description swingarm MSV136 137 09 93 3077 HWE 6 4 Service manual M695 Doc code 636 718 Service manual M695 Doc code 636 718 Chapter Power supply Lamp control Zoom control Focus control Table of content Description of functions M695 microscope Description microscope M695 09 93 3077 HWE Page 7 1 1 3 7 5 7 9 Service manual M695 Doc code 636 718 Power Supply M695 microscope For functions of control unit refer to page 5 3 Tasks 24V Supply Ground PGND SENS Description microscope M695 09 93 3077 HWE Page 7 2 7 2 1 Description microscope M695 Service manual M695 09 93 3077 HWE Doc code 636 718 LAMP CONTROL e4wv GND P36 P20 P21 JZ 24v ZOOM SERVO Pee J32 FOCUS SERVO POND 2u gt e 2 mM ux LP SENS 24V supply Lamp Control Zoom Servos Focus Servos and The final stages for lamp zoom and focusing motor is supplied with 24V on these boards via switching regulators PGND SENS and Microscope Ground PGND and SENS are linked within the microscope Logics Ground The high lamp current causes a voltage dr
18. Connections hand footswitch powerplug 1 Bw cci UDM ne I cc ui 1 3 Foot handswitch functions Io oo aa Nan EEE EEE A ono YI o EAI Poci p un eine DEE MI LES MEUM DENGAN DEE ZW 1Zoomdow 1 4 Connections microscope and swingarmcable 1 1 potentiometer function min max mM LAMP REF min V max V 2 2 Quick change lamp mount Sparebulb 0 Orangeindieator _ ZOOM control 1 ZOOM potentiometer function min max MEME 3 2 ZOOM UP Lew V D Mechanical running of zoom __ Zoom range 7x to 36x 4 FOCUS control FOCUS potentiometer function min max MEME 2 E N Lo 9 tr tri B lt aeceeece LA N lt 5 gt lt 8 lt 4 pl FOCUS UP FOCUS DN Mechanical running of focus Basic focus position Optical components 3 Low High mm n I Image sharpness zoom range Tiltable joint swingarm 1 2 6 3 Clip on handles 64 Gasspring TT Jos 65 Weightcompenation 000 6 6 Safetyhook Revolution of joint ege Wee ee NE 1 Cleanliness of optical components 1 ____ 2 DO ala Un 12 8 Service manual M695 Doc code 636 718 Content Goals Location Duration Cost Technical Reguirements Number of p
19. D and SENS are connected in the microscope The high lamp current produces a voltage drop of about 0 6V at PGND This voltage is passed to the control unit through SENS For the reason indicated above Logic ground is about 0 6V below PGND in the microscope The voltage drop at PGND influences the level of the control signals All control signals to the microscope are measured with the testbox in relation to SENS SENS is connected to GND trough a 20 Ohm resistance at panel board 9 7 Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Doc code 636 718 Notes Service manual M695 Doc code 636 718 Tasks Setting the lamp brightness Limiting excess current Description of control unit MEL64 65 Lamp control MEL64 65 Control element display Potentiometer on control unit Measurement resistor on LAMP CONTROL in microscope 09 93 3077 HWE Pages 5 10 7 3 1 3 5 9 Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Doc code 636 718 PANEL BOARD RECEIVER SWING ARM VR BRIGHTNESS Reference for lamp regulator 5 10 BOARD 26 18 _ 14 17_ P12 5 36 8 LAMP REF The voltage level LAMP REF depends on the position of the brightness potentiometer LAMP REF is passed via the receiver board and the swingarm cable to the lamp control board in the microscope where it forms the reference value required value of the lamp regulator Min brightness 0 3V 5 M
20. JP3 JP6 JP7 8 JP9 JP12 JP14 J16 J17 JP18 J19 P19 JP20 JP21 JP22 Seite Page 9 4 9 5 9 6 9 6 9 6 9 6 9 6 9 6 9 6 9 7 9 6 9 4 9 5 9 6 9 4 9 5 9 6 9 7 9 4 9 5 9 6 9 8 9 10 9 10 Einheit Unit Steuergerat Steuergerat Steuergerat Steuergerat Steuergerat Steuergerat Steuergerat Steuergerat Steuerger t Steuerger t Steuerger t Steuerger t Steuerger t Schwenkarm Swingarm MSV 136 137 Mikroskop Mikroskop Mikroskop Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit ME L64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Control unit MEL64 65 Microscope M695 Microscope M695 Microscope M695 9 VerdrahtungiW iring 10 94 3077 HWE Steckverb Connector JP23 JP25 JP26 J27 JP30 J32 P32 JP33 J36 P36 J37 Seite Page 9 10 9 11 9 11 9 4 9 5 9 6 9 11 9 12 9 10 9 12 9 9 9 10 9 9 Service Manual M695 Doc Code 636 718 Einheft Unit Mikroskop Microscope M695 Mikroskop Microscope M695 Mikroskop Microscope M695 Steuergerit Control unit MEL64 65 Mikroskop Microscope M695 Mikroskop Microscope M695 Mikroskop Microscope M695 Mikroskop Microscope M695 Schwenkarm Swingam MSV136 137 Mikroskop Microscope M695
21. L61 62 is compatible with M695 surgical microscope the MEL61 62 can also be used for the M695 provided that earlier lamp control PCBs are subjected to a slight modification This modification was introduced from March 1993 onwards Index C on board 355 980 C The functions ZOOM SPEED B XY SPEED and POSITION 1 2 are not reguired for the M695 The positions occupied on the control panel by these switches or potentiometers will be covered over The covers and instructions for fitting them accompany the control unit From March 1995 onwards only the MEL61 62 control unit will be used for the M680 and M695 The previously used MEL64 65 control unit will no longer be manufactured is required if both of the following conditions are met 1 The MEL64 65 control unit is replaced by an MEL61 62 2 The M695 was despatched before March 1993 The lamp control PCB therefore bears an earlier index than C Under these conditions the hand footswitches will not react at the control input A or B respectively depending on the position of the switch Position 1 2 Modification On the soldered side bridge pins 10 and 12 of P20 with a 100 O resistor 1 8W The resistor shall not come into contact with the housing cover LAMP CUNTRUL BUARD neg o e cee roe e eo ne em P20 2 1 Modifications Service manuel WILD M695 10 94 3077 HWE Doc Code 636 718 Service Manual M680 Introduction Doc code 556 848 03 93 3077 HWE
22. M695 M680 microscope Introduce the test box between the swingarm and the microscope Plug connections JP36 and JP37 Inspect the voltages and currents of the POWER SUPPLY as described in Section 4 Substitute service handswitch for footswitch observe signal voltages and also monitor LEDs on control unit Observe the signal voltages of the defective function MICROSCOPE CONTROL or XY gear as described in Section 4 Separate the microscope or the XY gear as appropriate from the test box and observe the signal voltages which flow from the control unit through the swingann Use service cable to bridge swingarm and observe signal voltages from control unit 18 1 Testset 09 93 3077 HWE All control voltages to the microscope measure at low light level POWER SUPPLY 12V XY GEAR 24 VXY GEAR 24 VNICROSC Lien S1 18 2 A MPERE PGND SENS Service Manual M695 Doc code 636 718 Functions of test box All supply and control voltages between the control unit and the microscope with XY gear can be measured Control voltages to the microscope are measured relative to XY_GND such to the XY gear relative to GND_XY Unless otherwise indicated set the lamp to minimum brightness The voltages indicated in Section 4 are only valid for this condition Voltage levels are falsfied by the voltage drop between the control unit and the microscope Because of the current taken by
23. WILD M695 Operating microscope Service manual al description and fault finding Doc Code 636 718 Edition 09 93 Revisions 10 94 Copyright by Leica AG Heerbrugg Switzerland 1994 Leica AG CH 9435 Heerbrugg Switzerland Telephone 11 071 70 31 31 Fax 441 071 72 69 52 Leica is a registered trade mark of Leica technologij B V Rijswijk the Netherlands Service Manual WILD M695 Operating microscope Legal matters Revisions Service News Introduction User manual Fault finding with testset Control unit MEL61 62 MEL64 65 Swingarm MSV 136 137 Microscope M695 Wiring diagram Replacing modules Replacing boards Inspection procedure Training Testset Spare parts catalogue Special tools 12 13 14 15 Service Manual M695 Legal guestions Safty Rechtsfragen Sicherheit Doc Code 636 718 09 93 3691 DMF Inhaltsvetzeichnis Table of contents Kapitel Seite Rechtsfragen Legal questions kakak 1 Sicherheit Safety Securite Seguridad oocooooocooooooooooooooooooooooooooooooooooooo 3 Service Manual M695 Legal guestions Safty Rechtsfragen Sicherheit Doc Code 636 718 09 93 3691 DMF Copyright Ohne vorherige schriftliche Erlaubnis der Firma Leica AG Heerbrugg Schweiz darf dieses Dokument weder insgesamt noch auszugsweise mit mechanischen fotografischen elektronischen oder irgendwelchen anderen Mitteln einschlie lich ihrer Umwandlung oder bertragung in masc
24. alue LAMP REF at the entrance of the regulator The lamp current produces a voltage drop across resistor R9 in Lamp Ground LGND The regulator measures this voltage drop and limits the current to 5 during the final stage Service manual M695 Description microscope M695 Doc code 636 718 Zoom control M695 microscope For functions of control unit refer to page 5 11 Tasks Control elements displays Setting zoom position with motor LEDs ZOOM UP DOWN Recognizing end of range Light barriers on ZOOM SERVO Presetting zoom displacement speed Control unit 09 93 3077 HWE Page 7 6 7 1 7 8 1 5 Description microscope M695 Service manual M695 09 93 3077 HWE Doc code 636 718 LAMP CUNTRUL P36 P20 Ped 16 gt 2 ZUUM SP e SPEED 4 ao ZUUM UP 4 M WN ZUUM DOWN Control LEDs Yellow LEDs on the zoom servo board for the signals ZOOM UP ZOOM DOWN Using motor to set zoom The control signals 0V 5V for ZOOM UP and DOWN reach the zoom board position via the swingarm cable and lamp control board in the microscope ZOOM UP DOWN activates the final stage transistors on the zoom servo board The end stage comprises a bridging circuit of transistors In accordance with the direction of displacement the transistors are activated by two TI and T3 or T2 and T4 7 6 Sica Service manual M695 Doc code 636 718 Description microscope M695 03 93 3077 HWE ZOUM SERVO Jeo Rec
25. articipants Remarks Training 09 93 3691 DMF M695 service courses Assembling the microscope on the floor stand Exchanging modules and boards Replacing the gas spring in the swingar Using the test box to locate faults After the course the participant should be able to Install the instrument ready for use use the test box to locate faults exchange modules and boards in accordance with the instructions carry out a comprehensive inspection of the functions Leica AG Heerbrugg Service LSG MSM training department In agencies provided that the service technician instructor has alredy attended an M695 course at Leica AG in Heerbrugg 2 days In accordance with present guidelines described in the Service Training Program excluding travel and accomodation Basic knowledge of mechanical engineering and of measuring technique Individuell Send application to agency 17 1 Service Manual M695 Doc code 638 718 Contents of test set Enables defective assemblies to be identified Procedure for fault location See section 4 Cause in footswitch Cause in microscope of in XY gear Cause in control unit or Swingarm Testset 09 93 3077 HWE Test set M695 M680 stock no 566 152 Test box stockno 566 146 Service cable M695 M680 stock no 566 148 Service handswitch stock no 566 147 Foot or handswitch Swingann Control unit MEL61 62 and MEL64 65 X or Y gear MSV138 M680 only
26. ax brightness 5 0V 5 Service manual M695 Description of control unit MEL64 65 09 93 3077 HWE Doc code 636 718 Zoom control MEL64 65 Tasks Control elements display Page Using motor to set zoom position Footswitch or handswitch 5 14 7 6 Function display Up down LED on zoom servo Presenting zoom adjustment speed Zoom speed potentiometer 5 14 7 8 5 11 Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Doc code 636 718 PANEL BOARD VR ZOOM SPEED 5 12 Seica Service manual M695 Doc code 636 718 RECEIVER BLIARD P14 TUM DN RECV LUGIC P3 1 Description of control unit MEL64 65 09 93 3077 HWE SWING ARM JLo J36 24 ZOOM SPEED T s ZOOM UP 4 4 ZOOM DN 5 13 Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Control LEDs Using the motor to set the zoom position Presetting the zoom displacement speed 5 14 Doc code 636 718 The function display tells you whether the signals from the footswitch or handswitch are being correctly received and interpreted ZT for ZOOM UP Zi for ZOOM DOWN The handswitch or the footswitch transmits on RD 2 or RD 3 the codes which correspond to the functions Data format ASCII 8 bit with start bit repeating at 2 3 millisecond intervals 5 W 8V The logics on the receiver board processor assign the codes received to their appropriate functions ZOOM UP ZOOM DOWN The control
27. ction procedure 09 93 3691 DMF Page 12 1 12 4 12 4 12 5 12 6 12 6 12 7 Service Manual M695 Inspection procedure Doc Code 636 718 09 93 3691 DMF Test plan for M695 surgical microscope Always pull out the power plug before opening the control unit Assemble the M695 surgical microscope in accordance with the user manual but disconnect all cables Inspect the M695 system using the test box Test set M695 M660 stock no 566 152 11 Connect the hand footswitch 6 functions and the power plug to the MEL 64 65 The plugs must go in and out without difficulty 1 2 Activate the power switch of the MEL64 65 The control unit switches on and the indicator lamp in the power switch shines The 5V LED on the function display shines The ML LED on the function display shines If the control unit does not switch on Inspect the power cable and the power connection Inspect the fuse on the panel board inside the control unit see wiring plan in section 9 and power unit defect search procedure on page 4 3 Power unit defect search procedure page 4 3 feica 12 1 Inspection procedure Service Manual M695 09 93 3691 DMF Doc Code 636 718 1 33 Activate the foot or handswitch functions The appropriate LED on the function display shines If a fault arises exchange the foot or handswitch and repeat the inspection procedure If there is still a fault then its source is to be found in the MEL64 65 control u
28. ducts have to be replaced please contact your Marketing responsible for SOM products All concerned countries will be supplied automatically without any order with sufficient replacement units free of charge The exchange procedure is very simple and can be achieved by the customer himself as well If you will not carry out the exchange yourself supply the customer with sufficient exchange units and Information 1 2 The action of replacement has to be achieved ASAP and should be finished by end of September 95 at the latest Please send a feedback after fully finish of the action of exchange with a list of all concerned customers to the SOM HOTLINE Fax 41 71 72 26 77 This is necessary for reasons of product liability Your expenses on this action will be refunded by us via the Repair Report to Factory Please fill out the report completely one report for the complete action Fig 1 The improved second version has approx 5 mm cement free area in the center good improved version where at the old version the whole is completely filled with cement old version Leica AG Service SOM SM Wut PE Klaus Bieniek Werner SERNEWSE DOC 2 2 Service manual M695 Doc Code 636 718 from control unit serial number 011193001 onwards Modification of the lamp conbol PCB Modification 10 94 3077 HWE Changes and modifications M680 control unit ME
29. e multifocus objective for the first time inspect the illumination e Engage the shortest working distance the shortest focal length e Engage the lowest zoom position 7 e Inspect the illuminated fields produced by both of the lamps in the lamp changer e If the illuminated area 15 noticeably restricted readjust the lamps The illumination of the field of view is influenced by the distance between the lamp and the condenser lens This distance can be changed by means of the eccentric stop cam on the lamp changer To obtain uniform illumination reduce the distance between the lamp and the condenser lens Adjust the eccentric stop cam for both lamps in the lamp changer 1 Remove the multifocus objective and push the filter slide of the M695 optics carrier towards the objective Beneath the filter slide you will find the adjusting screw for the eccentric stop cam adjusting lamp 2 Using a screwdriver displace the eccentric stop cam by about one eighth of a turn so that the lamp can be moved in the direction of the objective CAUTION The lamp may be hot 3 Switch to the second lamp and carry out point 2 for this lamp gt Refit the multifocus objective and inspect the illumination as described above 5 If necessary repeat the adjustment procedure points 1 3 Leica AG Service SOM SM laws K Bieniek W Hammerle SOM and SM Service News Leica No 09 95 To Service staff Date fr
30. elease functions Service manual M695 M695 Fault finding Doc code 636 718 09 93 3077 HWE Supply of microscope Voltage Reading Reaction Possible fault 24V cao 1 Lamp to min brightness 26V 5 Microscope reacts Check supply 2 Lamp to max brightness 20V 5 but incorrect lines of 24V and 3 Lamp back to min check PGND brightness page 4 6 Microscope without Wiring of any function microscope Switch off bridge swing arm with servicecable and 26V 4 596 microscope reacts Swingarm cable switch on again Switch off Separate microscope from 26V 4 596 Voltage ok evtl short circuit testbox and switch on in the microscope Voltage not ok Control unit M695 Fault finding Service manual M695 09 93 3077 HWE Doc code 636 718 Check lines of Powerground PGND Voltage drop on PGND relating to logic ground FOCUS UP Adjust lamp to maximal max 0 8W If voltage is ok depending on the incorrect brightness with standard function check signals of swingarm Lamp control page 4 7 cable Zoom control page 4 8 Focus control page 4 9 Bridge swingarm with max 0 8V Voltage ok Swingarm cable service cable and adjust One of the two lamp to max brightness PGND lines 1 broken Voltage not ok One of the two typ gt lv PGND lines in the microscope or control unit is broken Important Adjust lamp again to minimal brightness Service manual M695 Doc code 636 718 Lamp control LAMP REF Adjust lamp
31. f control unit MEL64 65 09 93 3077 HWE SWING ARM P19 22 26 C4 J36 1316 19 20 25 PGND 33671514 HAND F OOTSWITCH ___wl6 71 SV ______ 16 5 p GND 41771 e SV 273 GND 5 5 Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Doc code 636 718 Control LEDs On the panel board 10V OK green LED shines gt 5A on 24V PGND yellow LED shines Fuse interrupted red LED shines and on the function display 9V OK green LED shines 24V supply The 24V supply powers the servo board via the receiver board and the microscope via the swingann The fuse for the unstabilized main supply voltage 1s on the panel board 6 3A T The red LED indicates a burnt fuse Limitation of excess The loading at maximum lamp brightness is about 3 25A The yellow LED current on the panel board indicates switching off as a result of excess current 5A at PGND 10V supply A switching regulator on the panel board reduces the 24V to 10V The power for the potentiometer SV is derived from it The 5V regulator on the RECEIVER BOARD is supplied with 10V 5 6 Leica Service manual M695 Doc code 636 718 5V supply Receiver board PGND SENS and logics ground SENS Description of control unit MEL64 65 09 93 3077 HWE An LED on the function display shows 5V OK The following are supplied with power Handswitch or f amp switch and logics on receiver board Microscope ground PGN
32. have been replaced the instrument must meet specifications Values and tolerances are laid down in the testing procedure in Section 12 The test box and service cable and their circuits are described in Section 18 The spare parts the exchange of which is described in Sections 8 and 9 are listed in Section 19 Introduction 03 93 3077 HWE Special tools 3 4 Service Manual M680 Doc code 556 948 Section 20 includes a list of the service equipment which will enable you to carry out the operations described above No special tools are required The components making up the test box include a service handswitch and a service cable which serves to bridge the swingann User Manual Service Manual M695 CD ROM 08 98 Doc code 636 718 The M695 User Manual is provided as a separate document To view it click on this text Service manual M695 Doc code 636 718 Table of content M695 fault finding Chapter Preparation Power supply of control unit Functions of hand or footswitch Supply of microscope Lamp control Zoom control Focus control M695 fault finding 09 93 3077 HWE Page 4 1 4 3 4 4 4 5 4 7 4 8 4 9 Service manual M695 M695 Fault finding Doc code 636 718 09 93 3077 HWE M695 Fault finding Preparation 1 Connecting the testbox Disconnect plug P36 from swingarm Hook in the testbox to the swingarm and plug in P36 at the testbox Connect the testbox cable green sleeve with J36 at the swi
33. hinenlesbarer Form kopiert in einem Informationsspeicher abgelegt auberhalb des daf r vorgesehenen Zwecks oder in irgend einer Form an von Leica AG Heerbrugg nicht ausdr cklich befugte Dritte zuganglich gemacht oder abgegeben werden Haftung Dieses Dokument richtet sich ausschlie lich an qualifizierte Servicetechniker und Servicetechnikerinnen welche ber die notwendigen Fachkenntnisse verfugen Qualifizierte Servicetechniker und Servicetechnikerinnen sind solche die den entsprechenden Servicekurs bei Leica AG Heerbrugg erfolgreich besucht haben und bei Unternehmen der Leica Gruppe oder bei von Leica AG Heerbrugg autorisierten Vertretungen oder Servicewerkstitten titig sind Wird dieses Dokument von nicht qualifizierten Servicetechniker und Servicetechnikerinnen verwendet so lehnt Leica AG Heerbrugg jegliche Haftung ab f r direkte und indirekte Schaden die durch nicht fachgem be Anwendung und oder Interpretation dieses Dokumentes entstehen Copyright Without prior permission in writing by Leica AG Heerbrugg Switzerland this document shall not be reproduced as a whole or in part by mechanical photographic electronic or other means including into or transmission in machine readable form stored in any retrieval system used for any purpose other than that those for which it is intended nor made accessible or communicated in any form to any third party not expressly authorized by Leica AG Heerbrugg to have access thereto
34. mid polnt Focus reset switch Control unit 09 93 3077 HWE 1 12 1 12 Description microscope M695 Service manual M695 09 93 3077 HWE Doc code 636 718 LAMP CONTROL P36 P20 Joe o E A FOC SPEED AL i Le Y M SEE ET E FUCUS UP I FDCUS DUWN 7 10 feica Service manual M695 Description microscope M695 Doc code 636 718 09 93 3077 HWE FOCUS SERVO H T1 Te FOCUS MOTOR COMPARATOR J 3 3 T v WK 4 UP DOWN CENTER 4 6 L LIMIT Seica 7 11 Description microscope M695 Service manual M695 09 93 3077 HWE Doc code 636 718 Motorized focusing The control signals 0V 5V for A B FOCUS UP and A B FOCUS DOWN pass through the swingarm cable and the Lamp Servo to reach Zoom Servo at the microscope ZOOM UP DOWN activates the end stage transistors in the zoom servo board The end stage consists of a bridging circuit of transi stors and so the motor can drive the focusing mechanism in both senses of rotation Recognizing end of range Reflexive light barriers sense 2 encoder tracks at the circumference of the focus gear UP DOWN CENTER and LIMIT With the light barrier UP DOWN through gate 2 or 5 the direction of the arrived limit position 1s decoded Through gate 2 or 5 LIMIT blocks FOCUS UP or DOWN at the following NAND gate The final stage is then blocked for that direction Presetting the focus The displacement speed is altered with the supply voltage for the foc
35. ngann With that the control unit is connected with the microscope through the testbox Set switch MICROSCOPE SELECT on the testbox to position A grey 695 M695 Fault finding 09 93 3077 HWE 2 Settings on the control unit Adjust Lamp to minimal brightness Service manual M695 Doc code 636 718 4 2 Service manual M695 Doc code 636 718 Action SWITCHING ON P Power supply of control unit M695 Fault finding 09 93 3077 HWE Lamp of main switch does not light 5V LED on Function Display does not light Focus does not move to center position Line voltage 24V main supply 10V supply 5V supply Control unit Swingarm or microscope Fuses Fl and F2 in line plug P1 Main switch S1 Line cable Transformer Rectifier circuit Wiring Panel board Receiver board Focus control page 4 9 4 3 M695 Fault finding Service manual M695 09 93 3077 HWE Doc code 638 718 Functions of hand or footswitch Condition Malfunction of hand or footswitch of only one of the two CONTROL inputs or B is disturbed Replace disturbed hand or footswitch ective side or B by either a Service handswitch or b Hand footswitch at the other CONTROL input Release functions SL F 71 ZN Corresponding LED at Function FT Display does not light Receiver Board Fi Connect again original switch Corresponding LED at Function Hand or footswitch and Display does not light r
36. nit Fault location in hand footswitch functions page 4 4 ML on off Microscope lamp M L A on off Mvilirilzt Additional illumination Focus Focus down FY X Zoom up Z Zoom down 7 1 4 Connect cables of microscope and swingarm The plugs must go in and out without difficulty 12 2 Leica Service Manual M695 inspection procedure Doc Code 636 718 09 93 3691 DMF Preparation Connect test box Separate plug connection J P36 on swingarm S Hang test box on to swingarm Connect plug P36 from test box to swingarm and from M695 microscope to test box Set test box switch MICROSCOPE SELECT to Jfeica 123 Inspection procedure Service Manual M695 09 93 3691 DMF Doc Code 636 718 21 Turn LAMP potentiometer on control unit from min to max Reading on test box LAMP REF min max 0 3 The brightness of the microscope lamp is continuously adjustable 2 20 Activate the quick change lamp mount The spare bulb is moved into the beam path and lights up 5 The orange indicator springs out Push the orange indicator back into the rear wall Fault location in lamp control page 4 7 Important Before proceeding further with the test reset the lamp to its minimum brightness 31 Turn the ZOOM SPEED potentiometer from min to max and from max to min Reading on test box ZOOM SPEED min max 1 84 2 34VISV 5 The zoom speed is continuously adjustable 3 2 Use
37. ognizing end of range 24V Es ia M ZOOM MOTOR T4 T3 AP LIMIT UP DOWN RR LIMIT DOWN 4 An encoder disk rotates with the zoom gear The white field the disk is marking the limit area It is sensed by two light barriers located on the zoom servo If one of both light barriers senses the white field through a gate the transistor bridge is blocked for that direction of displacement Before removing the encoder disk Mark the disks position at its flange The adjustment of the disk is described in section 11 Replacing boards Zoom servo Description microscope M695 Service manual M695 09 93 3077 HWE Doc code 636 718 Presetting the zoom The displacement speed is adjusted by means of the supply voltage for the displacement speed zoom motor The final stage only has a switching function The ZOOM SPEED level is the reference for the voltage regulator on the zoom servo board The regulator has a positive current feedback and so the motor voltage increases with the load The current through the final stage is limited to about 150mA Service manual M695 Description microscope M695 Doc code 636 718 Focus control M695 microscope For functions of control unit refer to page 5 15 Tasks Control elements displays Motorized focusing Control unit Recognizing end of range Light barriers on FOCUS SERVO Presetting the focus displacement speed Control unit Travelling to the
38. om May 29 1995 BKL 3402 Leica AG CH 9435 Heerbrugg Switzerland File Workshop binder Service News Service Manual M695 Refer to Necessary replacement of SOM product Light intensifier Delivery of faulty SOM product Light intensifier 445 796 Problem SERNEWSE DOC Action 0 445 796 Faulty product has to be exchanged The concerned product has been delivered to the following countries as single part or included in the delivery of optics carriers Netherlands Japan UK Italy Australia USA Sweden Canada Switzerland Korea South Africa Kuwait Belgium Spain Columbia Saudi Arabia France Singapore Finland Portugal Germany Denmark Algeria Sudan Luxembourg Dominikanische Republic Hong Kong Turkey Brazil Tunisia Israel Austria Jordanian India All other countries are not concerned Since market introduction in March 1994 up to March 1995 the concerned product has been delivered faulty The cement does not withstand the high temperatures at the bulb It has been delivered as a single part as well as included in the following optics carriers M690 optics carrier Mitaka 445 543 M695 optics carrier 445 560 M695 optics carrier Mitaka OH 445 841 Since March 1995 an improved version with the same No has been delivering The two versions can be distinguished easily according to the drawing on page two The concerned customers are already informed by your Management The faulty pro
39. onents in the observation and illumination beam paths must be clean 5 2 Zoom Focus on the object and operate ZOOM UP ZOOM DOWN at their minimum speeds The image sharpness should remain constant over the entire zoom range The image should not jump suddenly when ZOOM UP and ZOOM DOWN are being operated 12 6 6 2 6 3 6 4 6 5 6 6 Rotation S The tiltable joint must be easily and smoothly tumable after the brake has been released Brakes 2 As the braking knob is applied the movement becomes steadily less free and finally the Joint locks completely When the brake knob is turned the other way the movement steadily becomes easier Clip on handles The sterilizable clip on handles must be convenient to put on and take off again They must click in and out perfectly Gas spring S The vertical adjustment must be smoothly adjustable from one end to the other drift downwards Weight compensation S The adjusting spindle must be adjustable from 0 to 10 Safety hook must remain in position At maximum loading and with the weight compensation at 10 the swingarm must not The safety hook must engage faultlessly When it is moved sideways the ratchet bolt Leica Service Manual M695 P r fprotokoll Doc Code 636 718 09 93 3691 DMF Test report for M695 surgical microscope Customer Tested by Date Stock no Description Serial no 445 560 Optics carrier M695 1 11 11 esses
40. op of about 0 6V to PGND This voltage is passed to the control unit through SENS Situation up until J uly For the reason indicated above Logics Ground is about 0 6V below PGND 1993 in the microscope The voltage drop at PGND affects the level of the control signals and so longer swingarm cables than the standard ones can result in malfunctioning New situation as from Logics Ground in the control unit is connected to SENSE and so is partly August 1993 dependent on PGND The effect on the control signals is therefore less and longer swingarm cables can be used 7 2 Seica Service manual M695 Description microscope M695 Doc code 636 718 Lamp control M695 microscope For functions of control unit refer to page 5 9 Tasks Control elements displays Setting the lamp brightness Control unit Limiting the excess current Measuring resistor on LAMP CONTROL 09 93 3077 HWE Page 7 4 7 4 7 3 Description microscope M695 09 93 3077 HWE Service manual M695 Doc code 636 718 LOGIC BOARD P36 8 gt 979 LAMP REF Adjusting the lamp brightness Limiting the excess current LAMP CONTROL X SPARE LAMP zum X ACTIVE LAMP J23 J30 R9 A pulse width modulator dependent on the level of LAMP REF controls the final stage transistors The voltage is smoothed with chokes and electrolytic condensers and the electricity 1s conducted to the lamp The secondary voltage is compared with the required v
41. orrectly received and interpreted FT for FOCUS UP Fl for FOCUS DOWN SL for CENTER POSITION Motorized focusing The handswitch or footswitch transmits on RD 2 or RD 3 the codes which correspond to the functions Data format ASCII 8 bit with start bit repeating at 2 3 millisecond intervals 5V 8V The logics on the receiver board processor assign the received codes to their appropriate functions FOCUS UP FOCUS DOWN CENTER POSITION The control signals 0V 5V for FOCUS UP and FOCUS DOWN reach the logics board in the microscope via the swingarm cable Presetting the focusing The voltage level of FOCUS SPEED depends on the setting of the potentio displacement speed meter on the panel board min FOCUS SPEED max FOCUS SPEED Zoom position 25 0 5V 0 7V 21V 5 Zoom position lt 8 1 25V 1 7V 5V 5 Service manual M695 Description of control unit MEL64 65 Doc code 636 718 09 93 3077 HWE Travelling to mid position This function is activated from the handswitches or footswitches A and B using the key SL 5 A timer Monoflop sets FOCUS SPEED to GND potential for about 30 milliseconds using a transistor The impulse is recognized on the focus servo in the motor driven objectiv MOBxxx and the system is steered to the mid position Jeica 5 19 Description of control unit MEL64 65 09 93 3077 HWE Notes 5 20 Service manual M695 Doc code 636 718 Service manual M695 Description swingarm MSV136 137 Doc code 63
42. oz amp 35 35 dWV 1 9 8 9 DD b 37 30 20 Testset Service Manual M695 09 93 3077 HWE Doc code 636 718 18 10 Leica Spare parts catalogue Doc Code 636 718 Art Nr Stock n 355 980 433 826 507 990 526 770 561 950 567 930 635 859 635 972 Benennung Spezifikation Description Specification Lamp control board Gas spring Focus servo board Function display Panel hoard fiir MEL64 65 Panel board fiir MEL61 62 Swingarm cable Receiver board M695 10 94 3691 DMF Bemerkung Zeichnung Remark Drawing Spare parts list M695 See page 11 2 Attention when the board is replaced at Instruments or with control units which are delivered since martch 94 If the lamp control board does not have index C of modification or later it must be modified as shown on page 2 1 Else the following fault occurs the hand footswitch at control input B does not react See page 10 4 See page 11 1 Seepage 11 4 Seepage 11 3 See page 11 3 See page 10 5 See page 11 4 19 1 Ersatzteilkatalog Spare parts catalogue 10 94 3691 DMF Doc Code 636 718 Art Nr Benennung Spezifikation Bemerkung Zeichnung Stock n Description Specification Remark Drawing 19 2 Leica Service Manual M695 Special tools 09 93 3691 DMF Doc Code 636718 _ em 999555 401 283 Pin spanner 418 135 Handle for pin spanner 566 152 Test set compl wi
43. rt looking for faults at the level of the main groups The test box is introduced between the swingarm and the microscope It can be used to study the supply voltages control signals and control levels all of which are transmitted through the swingarm cable Section 6 includes a list of these signals Description of control unit MEL64 65 Service manual M695 09 93 3077 HWE Doc code 636 718 Notes Service manual M695 Doc code 636 718 Description of control unit MEL64 65 09 93 3077 HWE Power supply MEL64 65 Tasks Control elements displays Pages 24V supply Red LED on panel board indicates 5 6 for microscope and XY gear 10V supply for potentiometer and receiver board 5V supply for logics of receiver board and foots witch or handswitch Ground PGND Microscope ground SENS GND XY XY ground defective fuse Green LED on panel board shows 10V 5 6 OK LED SV OK on function display 5 7 Yellow LED on panel board indicates 5 7 switch off caused by excess current Logics ground microscope 5 7 5 3 Description of control unit MEL64 65 09 93 3077 HWE Service manual M695 Doc code 636 718 PANEL BUARD FUSE AU 24V 6 3AT GND 24 Ld R COMPAR SA CURRENT LIMIT C LIMIT POTENTIOMETER SUPPLY SV Service manual M695 Doc code 639 718 RECEIVER FPOZLSG AE PRT P6 7 14 FUNCTION DISPLAY LOGIC SUPPLY Description o
44. speed 5v 5 FOCUS UP Release FT on hand footswitch gt 4 75V Voltage ok but Microscope non actuated 0 2V reacts incorrect Focus servo wiring FOCUS DN Release Fl on hand footswitch gt 4 75V non actuated 0 2V Separate microscope from the testbox and see above Voltages ok Microscope check signals short circuit on Focus servo or wiring Bridge swingarm with servicecable and verify see above Voltages ok Swingarm signals cable Voltages not ok Control unit M695 Fault finding 09 93 3077 HWE 4 10 Service manual M695 Doc code 636 718 Service manual M695 Doc code 636 718 Chapter Introduction Power supply Lamp control Zoom control Focus control Table of content Description of functions MEL64 65 control unit Description control unit MEL64 65 09 93 3077 HWE Page 5 1 5 3 5 9 5 11 Service manual M695 Description of control unit MEL64 65 Doc code 636 718 09 93 3077 HWE Description of functions MEL64 65 control unit The description is subdivided for the main groups e Control unit MEL64 65 Section 5 e Swingarm MSV136 137 Section 6 e M695 microscope Section 7 The control circuits for zoom focusing and XY gear are located partly in the control unit and partly in the microscope itself Their functions are described in the following sections 5 and 7 The swingarm cable is the electrical link between the control unit and the microscope and is therefore the ideal place to sta
45. the lamp this voltage drop to PGND measuring ground can be as much as 0 9V The control voltages of focus and zoom are measured against PGND and are therefore influenced MICROSCOPE CONTROL M680 XY GEAR SIGNAL SELECT FOCUS SPEED MICROSCOPE XY GEAR MICROSCOPE A B MICROSCOPE SELECT M695 M680 4 N M680 A B S3 S2 S4 Service Manual M695 Doc code 638 718 The test box three multimeters Digital voltmeters Supply for digital voltmeter Circuit diagram on page 18 5 POWER SUPPLY Diagram on page 18 6 MICROSCOPE CONTROL Diagram on page 18 7 Testset 09 93 3077 HWE One digital voltmeter is assigned to each of the functions POWER SUPPLY MICROSCOPE CONTROL and XY GEAR The signals reach the measuring instrument through a rotary switch Range of measurement 1 999V with overflow display OL Measurement precision 1 1 digit 2 measurements second Auxiliary voltage 7 I5VDC The power 1s derived from the 24V supply of the XY gear at control unit MEL61 62 only Three galvanically separating DC converters each reduce the voltage to approx 12V each Rotary switch S1 Displaces the decimal point on the display by one digit to the right for the 24V measuring ranges Rotary switch S1 Level 1 Selects current and voltage ranges Voltage distributor 1 10 for 12V range 1 100 for 24V ranges Current measurement range Voltage drop across 0 1 ohm resistor Measuring ground PGND 24
46. thout boards 566 146 Test box 566 147 Hand switch mod i 20 1 Special tools Service Manual M695 09 93 3691 DMF Doc Code 636 718 556148 Service cable M680 M695 566 151 Box 20 2 Leica
47. to min max brightness Separate microscope from the testbox adjust lamp to min max brightness Bridge swingarm with service cable adjust lamp to min max brightness 0 3V 5V 4 5 96 0 3V 5V 5 0 3V 5V 5 Voltage ok Voltage ok Voltage ok Voltage not ok Important Adjust lamp again to minimal brightness M695 Fault finding 09 93 3077 HWE Possible fault Microscope Lamp Control Wiring Microscope Swingarm cable Control unit 4 7 M695 Fault finding 09 93 3077 HWE Service manual M695 Doc code 636 718 Zoom control ZOOM SPEED Set min zoom speed 1 84 2 34V Set max zoom speed SV 4 596 ZOOM UP Release ZT on hand footswitch gt 4 75V Voltages ok but Microscope non actuated 0 2V reacts incorrect Logic board Zoom servo wiring ZOOM DN Release Z4 on hand footswitch gt 4 75v non actuated lt 0 2v Separate microscope from the testbox and see above Voltages ok Microscope check signals short circuit on Zoom servo or wiring Bridge swingarm with servicecable and verify see above Voltages ok Swingarm cable signals Voltages not ok Control unit 4 8 Service manual M695 M695 Fault finding Doc code 636 718 09 93 3077 HWE Focus control Select microscope side A or B e Select A or B depending on which side the zoom works incorrect e Select A if the fault appeares on both sides A and B FOCUS SPEED set min focus speed 125 1 27V set max focus
48. us motors displacment speed The final stage only has a switching function The FOCUS SPEED level is the reference for the voltage regulator on the focus servo board The current through the final stage 1s limited to about 140mA Travelling to the Triggered by mid position Pressing key Center Position at the focusing unit Switching on the microscope 30ms pulse to FOCUS SPEED from control unit The comparator recog nizes when FOCUS SPEED is at GND potential The following functions are activated as a result l The selflock circuit is triggered Gate 2 and 5 block FOCUS UP and DOWN to the final stage The voltage supply for the focusing motor is switched to maximal speed 2 Lightbarrier UP DOWN CENTER senses at which side from mid posi tion the focus gear is staying Through gate 3 or 4 the final stage is controlled the motor drives the focus gear toward mid position 3 until the light barrier on the sensor board detects the crossing from dark to bright at mid position The selflock cicuit is reset Clr the motor stops 7 12 Seica Service Manual M695 Doc Code 636 718 Referenz auf Steckverbinder Reference to connectors Verdrahtung Wiring 10 94 3077 HWE Wo im Instrument die Steckverbindungen zu finden sind erfahren Sie anhand dieser Liste und der nachfol genden Seiten The location of connectors 1s shown by the list referring to following pages Steckverb Connector P1 JP2
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