Leica M695 User Manual
Leica AG, CH-9435 Heerbrugg (Switzerland)
Telephone +11 (071) 70 31 31, Fax +41 (071) 72 69 52
Leica is a registered trade mark of Leica technologij B. V. Rijswijk, the Netherlands
Service Manual
WILD M695
Legal matters
Revisions/Service News
Introduction / User manual
Fault finding with testset
Control unit MEL61/62, MEL64/65
5
Swingarm MSV 136/137
Microscope M695
Wiring diagram
Replacing modules
Replacing boards
Inspection procedure
6
7
8
9
12
Training
Testset
Spare parts catalogue
13
14
15
16
17
19
Special tools
20
Service Manual M695
Doc Code 636 718
Legal questions/ Safty-Rechtsfragen / Sicherheit
09/93 3691-DMF
lnhaltsvetzeichnis / Table of contents
Kapitel
Rechtsfragen / Legal questions
Sicherheit / Safety / Securite / Seguridad
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Seite
1
3
Service Manual M695
Doc Code 636 718
Legal questions / Safty-Rechtsfragen / Sicherheit
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 (einschließlich ihrer Umwandlung oder Übertragung in maschinenlesbarer Form) kopiert,
in einem Informationsspeicher abgelegt, außerhalb des dafür vorgesehenen Zwecks oder in irgend einer
Form an von Leica AG, Heerbrugg nicht ausdrücklich befugte Dritte zuganglich gemacht oder abgegeben
werden.
Haftung
Dieses Dokument richtet sich ausschließlich an qualifizierte Servicetechniker und Servicetechnikerinnen,
welche über 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 Servicewerkstätten tätig sind.
Wird dieses Dokument von nicht qualifizierten Servicetechniker und Servicetechnikerinnen verwendet, so
lehnt Leica AG, Heerbrugg jegliche Haftung ab für direkte und indirekte Schaden, die durch nicht
fachgemäße 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.
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.
Service Manual M695
Doc Code 636 718
Legal questions / Safty-Rechtsfragen / Sicherheit
09/93 3691-DMF
Für die Servicetechniker und Servicetechnikerinnen gelten folgende Pflichten:
•
Sie verstehen und befolgen die Sicherheitsinformationen und die Instruktionen auf dem Produkt sowie in
der Gebrauchsanleitung.
•
Sie kennen die ortsüblichen gesetzlichen, betrieblichen und ausserbetrieblichen
Unfallverhütungsvorschriften im Wissen, dass sich diese auf dem aktuellsten Stand befinden.
•
Sie benachrichtigen Leica schriftlich, sobald an der Ausrüstung 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 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
Leica AG, Heerbrugg
REVISION
Documentation
Status
: WILD M695 Service manual
: Edition 09(93
Reason for revision :
Steps to be taken
Section
:
Remove page(s)
--- title sheet
--- index register
2
9
19 19-1
(Technical description and fault finding)
/
Revision, previous: -------
new: 10/94
M680 control unit (MEL61/62) is compatible with M695
Number of Introduce page(s)
Number of
sheets
1 title sheet 1
1 index register 1
---
9-1 to 9-8
--
2-1/2 1
4 9-1 to 9-8
1 19-1 1
sheets
4
File
Leica AG
Service Documentation
and Training LSG/SOM/SM
: Insert this sheet (Revision) in section 2.
SOM and SM Service News
Surgical Operating Microscopes
No. 10/95
To Service staff
Date/from June 28, 1995 / 3077-HWE
File
Workshop binder “Service News” / Service manual M695
Re.
M695 surgical microscope in conjunction with
multifocus objective 445 944
Restriction of illuminated
area
lnspect the illumination
Leica AG
CH-9435 Heerbrugg
(Switzerland)
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 the multifocus objective for the first time, inspect the
illumination:
Engage the shortest working distance (the shortest focal length).
l
Readjusting the lamp
l Engage the lowest zoom position (7).
Inspect the illuminated fields produced by both of the lamps in the
l
lamp changer.
l
If the illuminated area is 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.
Using a screwdriver, displace the eccentric stop cam by about one-
2.
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.
4. Refit the multifocus objective and inspect the illumination as
described above.
If necessary, repeat the adjustment procedure (points 1 - 3).
5.
Leica AG
Service SOM/SM
W. Hammerle
SOM and SM Service News
No. 09 / 95
To Service staff
Date/from May 29, 1995 / BKL-3402
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
Leica AG
CH-9435 Heerbrugg
(Switzerland)
No. 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.
Problem:
Action:
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 products 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.
SERNEWSE.DOC
The exchange procedure is very simple
customer himself as
well. If you will not carry out the exchange yourself,
and can
be achieved by the
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
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!).
feedback after fully finish of the action of exchange with
a
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.
SERNEWSE.DOC
Leica AG
Service
Klaus Bieniek
SOM/SM
2/2
Service manual M695
Doc Code 636 718 10/94 3077-HWE
Modification
Changes and modifications
M680 control unit (MEL61/62) is compatible with
M695 surgical microscope
. . . from control unit
serial number 011193001
onwards
Modification of the
lamp-conbol PCB
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
required 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 Ω resistor (1/8W). The resistor shall not come into contact with the
housing cover.
2-1
Modifications
10/94 3077-HWE
Service manuel WILD M695
Doc Code 636 718
2-2
Service Manual M680
Doc code 556 848
Introduction
03/93 3077-HWE
Preconditions
for using this service manual
Intended users
What is expected of
the person using the
Testset?
Technical personnel provided by customer or by LEICA agencies, equipped
with the testset 566 152 (see Section 18).
Stage 1: Allocation of a fault to one of the main groups:
- Footswitch
-
Control unit
- Swingarm
-
Microscope (optics carrier)
•
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
•
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
•
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
3-1
Introduction
03/93 3077-HWE
Service Manual M680
Doc code 656 948
To the contents of service manual
Legal aspects
Changes/
Service News
Introduction/
User manual
locating faults with
the test set (Test box)
This book may only be given to, and used by, certain persons. These are
detailed in
Place Service News on top of the M695 in
Section 1.
Section 2.
CONGRATULATIONS - You are one of those methodical people who also
read the important
If a fault develops,
Section 3
we will
of this manual.
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 MEL64165
Description of function
• Control unit
• Swingarm
• 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.
3-2
Service Manual M680
Doc code 556 948
Introduction
03/93 3077-HWE
Swingarm
Description of function
M680 microscope
Description of function
Wiring diagram
Exchanging modules
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 are
available as spare parts.
Exchanging boards
Testing procedure
Test set
Spare parts
Section 11
includes instructions for exchanging those boards which are
available as spare parts.
After modules or boards 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
Service Manual M680
Doc code 556 948
Special tools
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.
3-4
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
M695 fault finding
09/93 3077-HWE
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
Page
4-1
4-3
4-4
4-5
4-7
4-8
4-9
Service manual M695
Doc code 636 718
1. Connecting the testbox
M695 Fault finding
09/93 3077-HWE
M695 Fault finding
Preparation
Disconnect plug P36 from swingarm
l
Hook in the testbox to the swingarm and plug in P36 at the testbox.
l
l
Connect the testbox cable (green sleeve) with J36 at the swingann. With
that the control unit is connected with the microscope through the testbox.
Set switch “MICROSCOPE SELECT” on the testbox to position A.
l
4-1
M695 Fault finding
09/93 3077-HWE
2. Settings on the control unit
•
Service manual M695
Doc code 636 718
Adjust Lamp to minimal brightness
4-2
Service manual M695
Doc code 636 718
M695 Fault finding
09/93 3077-HWE
Power supply of control unit
Action
SWITCHING ON
Reaction
Lamp of main switch
does not light
5V-LED on FunctionDisplay does not light
Focus does not move
to center position
Possible reason
Line voltage
24V-main supply
10V-supply
5V-supply
Control unit,
Swingaxm
or
microscope
Check
Fuses F1 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
09/93 3077-HWE
Service manual M695
Doc code 638 718
Functions of hand- or footswitch
Condition:
Action
Release functions:
Malfunction of hand- or footswitch of only one of the two CONTROL-inputs,
A or B
is disturbed.
•
Replace disturbed hand- or footswitch ective side A or B by either:
a) Service-handswitch or
b) Hand-/footswitch at the other CONTROL-input
Reaction
Possible reason
Connect again original switch
and
release functions
Corresponding LED at Function
Display does not light
Corresponding LED at Function
Display does not light
Receiver Board
Hand- or footswitch
Service manual M695
Doc code 636 718
M695 Fault finding
09/93 3077-HWE
Voltage Action
24V
MICRO
1.Lamp to min.brightness
2.Lamp to max.brightness
3.Lamp back to min.
brightness
Switch off, bridge swingarm with servicecable and
switch on again
Switch off,
Separate microscope from
testbox and switch on
Reading
26V +-5%
20V +-5%
26V +-5%
26V +-5%
Reaction
Possible fault
Microscope reacts - Check supplybut incorrect
lines of 24V and
check PGND page 4-6
Microscope without
any function
microscope reacts
Wiring of
microscope
Swingarm cable
Voltage ok evtl. short circuit
in the microscope
Voltage not ok
Control unit
4-5
M695 Fault finding
09/93 3077-HWE
Service manual M695
Doc code 636 718
Check lines of Powerground PGND
(Voltage drop on PGND relating to logic ground)
Signal
FOCUS UP
Action
Adjust lamp to maximal
brightness
Bridge swingarm with
service cable and adjust
lamp to max. brightness
Reading
max. -0.8W
Reaction
If voltage is ok - depending on the incorrect
with standard- function, check signals of:
swingarm
cable
Lamp control - page 4-7
Zoom control - page 4-8
Focus control - page 4-9
max. -0.8V Voltage ok
Swingarm cable
(One of the two
PGND-lines is
Voltage not ok
typ. >-1v
Possible fault
broken)
One of the two
PGND-lines in
the microscope
or control unit is
broken.
4-6
Important: Adjust lamp again to minimal brightness!
Service manual M695
Doc code 636 718
M695 Fault finding
09/93 3077-HWE
Lamp control
Signal Action
LAMP REF
Adjust lamp 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
Reading
0.3V / 5V
+-5%
0.3V / 5V
+-5%
0.3V / 5V
+-5%
Reaction
Voltage ok
Voltage ok
Voltage ok
Voltage not ok
Possible fault
Microscope
(Lamp Control,
Wiring)
Microscope
Swingarm cable
Control unit
Important: Adjust Iamp again to minimal brightness!
4-7
M695 Fault finding
09/93 3077-HWE
Service manual M695
Doc code 636 718
Zoom control
ZOOM SPEED
ZOOM UP
ZOOM DN
Action
Set min. zoom speed
Set max. zoom speed
/footswitch
non-actuated
/footswitch
non-actuated
Separate microscope
from the testbox and
check signals
Heading
1.84 ... 2.34V
5V +-5%
>4.75V
<0.2V
>4.75v
<0.2v
see above
Reaction
Voltages ok, but
reacts incorrect
Voltages ok
Possible fault
Microscope
(Logic board.
Zoom servo,
wiring)
Microscope
(short circuit on
Zoom servo or
wiring)
4-8
Bridge swingarm with
servicecable and verify
signals
see above
Voltages ok Swingarm cable
Voltages not ok Control unit
Service manual M695
Doc code 636 718
M695 Fault finding
09/93 3077-HWE
Focus control
Select microscope side A or B:
•
Select A or B, depending on which side the zoom works incorrect
•
Select A if the fault appeares on both sides, A and B.
Action
FOCUS SPEED
set min.
set max. focus speed 5v +-5%
FOCUS UP
/footswitch
non-actuated
FOCUS DN
/footswitch
non-actuated
Separate microscope
from the testbox and
check signals
focus speed
Reading
1.25 . . . 1.27V
>4.75V
<0.2V
>4.75V
<0.2V
see above
Reaction
Voltage ok, but
reacts incorrect
Voltages ok
Possible fault
Microscope
(Focus servo,
wiring)
Microscope
(short circuit on
Focus servo or
wiring)
Bridge swingarm with
servicecable and verify see above
signals
Voltages ok Swingarm-
cable
Voltages not ok
Control unit
M695 Fault finding
09/93 3077-HWE
Service manual M695
Doc code 636 718
4-10
Service manual M695
Doc code 636 718
Description control unit MEL64/65
09/93 3077-HWE
Description of functions
MEL64/65 control unit
Chapter
Introduction
Power supply
Lamp control
Zoom control
Focus control
Page
5-1
5-3
5-9
5-11
5-15
Service manual M695
Doc code 636 718
Description of functions
MEL64/65 control unit
The description is subdivIded for the main groups:
•
Control unit MEL64/65 - Section 5
•
Swingarm MSV136/137 - Section 6
•
M695 microscope - Section 7
Description of control unit MEL64/65
09/93 3077-HWE
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 start looking for faults at the level of the main
groups.
The test box
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.
is introduced between the swingarm and the microscope. It can
5-1
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