Lightmed LightLas 532 User manual

1
Service Manual
for the
LightLas 532
Medical Frequency Doubled
YAG Laser System
Directive 93/42/EEC
as amended by 2007/47/EC
Doc. No. : DC2000-532
Rev. No. : 05

2
Service Manual for the LightLas 532 Medical Frequency
Doubled YAG Laser
Only authorized Service personnel should attempt to perform the procedures contained within
this Service Manual. The manufacturer can organise detailed Service Training for authorized
agents.
The manufacturer will under no account accept any responsibility for any conditions arising as
a result of unauthorized maintenance or adjustments to the LightLas 532 Medical Frequency
Doubled YAG Laser.
This Service Manual should be fully studied and understood before proceeding to operate or
service the equipment. For further details relating to the operation of the LightLas 532 Medical
Frequency Doubled YAG Laser the Service Manual should be referred to.
CAUTIONS - Use of controls or adjustments or performance of procedures other than
those specified herein may result in hazardous radiation exposure.
Any modification to the LightLas 532 Medical Laser will result in the necessity for it to be
reclassified.
CAUTIONS - US Law restricts this device to sale by or on the order of a physician.
This Service Manual contains confidential and proprietary information of the
manufacturer.
Manufactured by: LightMed Corporation, No.1-1, Ln. 1, Pao-An St.
Sec. 3,Shulin Dist., New Taipei City 23861, Taiwan
USA Address: 1030 Calle Cordillera, Suite 101, San Clemente, CA 92673
Tel No.: 949-218-9555 Fax No.: 949-218-9556
Copyright ©LightMed Corporation
EU Representative: Medical Device Safety Service GmbH
Schiffgraben 41, 30175 Hannover, Germany
Document Title: Service Manual for the LightLas 532 Medical Frequency Doubled YAG
Laser.
Document Number: DC2000-532
Document Revision History:
October 2001 - Draft prepared
March 2002 - Second version updated information
May 2002 - Third version with new Installation section, new drawings,
CE Mark information, Change to Revision 01
March 2003 - Rev.02 Modify drawings
February 2004 - Rev. 03 Safety Glasses description change; Delete Warranty
Statement
January 2005 - Rev. 04 Change EU Representative to ALF in ITALY

3
November 2010 - Rev. 05 Update the current modification, service procedure.

4
Contents of Manual
SECTION PAGE
1. INTRODUCTION 9
1.1 General 9
1.2 How to Use the Manual 10
2.SAFETY 11
2.1 Product Classifications 11
2.2 Warnings and Precautions 13
2.3 Optical Hazards 14
2.3.1 Nominal Ocular Hazard Distance (NOHD) 14
2.3.2 Avoid Exposure to Laser beams 15
2.4 Electrical Hazards 15
2.5 Safety Controls and Features 17
2.6 Product Labeling 20
3. PRODUCT SPECIFICATIONS 26
3.1 LightLas 532 System Specifications 26
3.2 CSO SL980, SL990 Slitlamp Specifications 29
3.3 Module Specifications 29
3.3.1 SystemBlockDiagram 29
3.3.2 Optical Elements Diagram 32
3.3.3 Laser Cavity Block Diagram and description 33
3.3.4 Remote Control description 34
3.3.5 Laser Diode source 34
3.3.6 Slitlamp Delivery Unit (Integrated model) 35
3.3.7 Laser Indirect Ophthalmoscope (LIO) Delivery Unit 37
3.3.8 Slitlamp Attachment LDU 38
3.3.9 Doctors Operating Microscope Safety Filter 38
3.3.10 Endoprobes 39
3.3.11 Laser Console Internal Modules 39
3.4 OptionalAccessories 49

5
4. PRINCIPLES OF OPERATION 52
4.1 General Description 52
4.2 LightLas 532 Laser Controls and Displays 55
4.2.1 Laser Console 55
4.2.2 Slitlamp Integrated Delivery Unit 60
4.2.3 LIO 63
4.3 CSO SL980, SL990 Slitlamp Controls 65
4.4 Detailed Description 69
5. INSTALLATION 72
5.1 Introduction and Requirements 72
5.2 Unpacking and Receiving Inspection 73
5.3 Tools and Equipment 75
5.4 Setting Up and Checking the Laser System 76
5.4.1 Preparation 76
5.4.2 Table and Slitlamp 77
5.4.3 Integrated Slitlamp Delivery Unit 78
5.4.4 Attachment Slitlamp Delivery Unit 80
5.4.5 Laser Console 86
5.4.6 Pre-Laser operation checks 87
5.4.7 Alignment Checks 89
5.4.8 Laser Indirect Ophthalmoscope 97
5.4.9 Endoprobe 101
5.5 Installation Record Sheet 102
6. MAINTENANCE 104
6.1 Operator / User Routine Maintenance 104
6.1.1 General Routine Maintenance Procedures 105
6.1.2 Laser Console Routine Maintenance 105
6.1.3 Slitlamp Delivery Routine Maintenance 106
6.1.4 LIO Delivery Routine Maintenance 106
6.1.5 Endoprobe Routine Maintenance 107
6.1.6 Operating Microscope Routine Safety Filter Maintenance 107
6.2 Calibration and Alignment Procedures for Console 107
6.2.1 Fiber link alignment 108
6.2.2 Aiming Alignment adjustment 110

6
6.2.3 Console Power Calibration checks 111
6.2.4 Earth / Ground resistance checking 113
6.2.5 Aiming Power adjustment 113
6.2.6 Remote Door Interlock connections 113
6.2.7 LightLas 532 Laser Power Calibration Procedure 115
6.2.8 Power Detector Calibration Procedure 122
6.2.9 Process for upgrading LightLas 532 software 127
6.3 Checking Delivery Units Laser beam alignment 138
6.4 Trouble shooting guide 139
6.4.1 Operator Trouble Shooting 139
6.4.2 Service Trouble Shooting 140
6.5 Error and Interlock Warning messages 142
7. WARRANTY STATEMENT 148
8. GETTING HELP AND PARTS 149
8.1 Contacting the factory 149
8.2 Service Report Form 151
8.3 Returning Parts 152
9. GLOSSARY OF TERMS 153
10. MAINTENANCE HISTORY RECORD 159
11. EUROPEAN COMMUNITY ISSUES 163
12. EMC Test Tables 165
LIST OF DRAWINGS / FIGURES
Figure Description Page
2.1 Safety Controls 17
2.2 Laser Console Safety and Controls Labels 20
2.3 Laser Console Labels 21
2.4(a) Integrated Slitlamp LDU with Labels (RH side) 22
2.4(b) Integrated Slitlamp LDU with Labels (LH side) 23
2.5 LIO LDU with Labels 24
2.6 Attachment LDU with Labels 25
2.7 Microscope Doctor Safety Filter with Labels 25

7
Figure Description Page
3.1 System Wiring Drawing 30
3.2 System Block diagram 31
3.3 Optical Elements Block Diagram 32
3.4 Laser Cavity Block Diagram 33
3.5 Integrated Slitlamp LDU Beam Diagram 35
3.6 LIO Optics Beam Paths 37
3.7 Attachment Slitlamp LDU Beam Diagram 38
3.8 Endoprobes diagram 39
3.9 Laser Console Internal Modules (Old Version) 39
3.10 Laser Console Internal Modules (New Version CE Mark Version) 43
3.11 New Laser Console Internal Modules (New Version CE Mark Version) 44
4.1 Laser Console Controls and Displays 55
4.2 Remote Control and Displays 56
4.3 Integrated Slitlamp LDU Controls 60
4.4(a) Attachment Slitlamp LDU Controls(Old One with Micromanipulator) 60
4.4(b) Attachment Slitlamp LDU Controls
(New One without Micromanipulator-Truspot) 61
4.5 LIO Controls 63
4.6 SL980 Slitlamp Parts List 65
4.7 SL980 Slitlamp Controls 66
4.8 SL990 Slitlamp Parts List 67
4.9 SL990 Slitlamp Controls 68
5.1 Packing Carton for Integrated LDU and Slitlamp 73
5.2 Portable Carry Cases for Console and LDU’s 74
Installation
1 Laser System Parts 76
2 Slitlamp mounted onto Table Top ready for Integrated LDU 77
3 Slitlamp arm ready for Delivery housing 78
4 Fit Delivery unit housing to the Slitlamp 78
5 Lock housing to Slitlamp when it is pushed against Chrome Stop screw 79
6 Align the keyways then fit the Zoom unit to the Delivery housing 79
7 Rotate the Zoom housing to the end stop 80
8(a) Haag Streit style Slitlamp with Tonometer mount ready for Attachment
LDU 81
8(b) Attaching Tonometer mount and Attachment LDU Mounting Arm to Zeiss
30SL 81
9(a) Lock the Haag Streit Attachment LDU Mounting Arm to the Tonometer
mount 82
9(b) The Zeiss Style Slitlamp with Attachment LDU Mounting Arm ready for
LDU 82

8
10 Moving Safety Filter between Binoculars and Microscope Housing 83
11 Safety Filter for Haag Streit style 83
Figure Description Page
12(a) Attachment LDU fitted to Haag Streit style Slitlamp with
Micromanipulator 84
12(b) Attachment LDU fitted to Zeiss 30SL Slitlamp with Micromanipulator 84
13 Original Illumination Tower 85
14 New modified Illumination Tower fitted 85
15 Attach the cables and connectors to the back panel of Laser Console 86
16 Attach the Delivery Fiber and Delivery Key to Laser Console 86
17 Initial Power on displays and outputs 87
18 Safety filter checks 88
19 Attach the Delivery fiber to the Zoom unit 88
20 Set the eyepieces and slitlamp ready to do alignment checks 90
21 Check Slitlamp focus on Target Rod and Laser focus of aiming beam 91
22 Checking Laser focus and manipulator operation on black material target 91
23 Check Slitlamp focus on Target Rod and Laser focus of aiming beam 92
24 Adjust the Attachment LDU Spot Size Focus using the Knob on the
Mounting Arm 93
25 Adjusting Micromanipulator Arm to verify Laser Spot is in Aperture
Center 94
26(a) Release the lock screw for the sideways movement adjustment 95
26(b) Adjusting sideways movement of Attachment LDU during alignment 95
27 Typical Laser settings for demonstration of the Laser System 97
28 Fiber and Delivery Key fitted to Console Front Panel 98
29 Fiber and Illumination Cable attached to LIO 98
30 Locking Set Screws and Rotation of Optics Tube during alignment 99
31 LIO of Keeler All Pupil Ⅱ100
6.6(a) Measure the laser output power 108
6.6(b) connect a brand new fiber into the laser output aperture and set up 108
6.7 Aiming Alignment adjustment 110
6.8 Aiming Module 110
6.9 Remote Interlock Connections 114
LIST OF RECORD SHEETS / FORMS PAGE
Record Sheet 1 Installation Record Sheet 102
Record Sheet 2 Fiber Focus Checking Record Sheet 106
Record Sheet 3 Power Calibration Checking Record Sheet 112
Record Sheet 4 Service Report form 151
Record Sheet 5 Maintenance History Record 160

9
Section 1 INTRODUCTION
Contents
1.1 General
1.2 How to use this Manual
1.1 General
This manual is intended for the use of authorized service agents of the manufacturer. The aim of
this manual is to present an overview of the Operation and Safety requirements for the LightLas
532 Medical Photocoagulator Laser along with sufficient details and procedures to
troubleshoot and maintain the Laser System throughout its normal useful life.
This manual will not provide any details on actual treatment procedures and it is expected that
users of the Laser will have undertaken training prior to using the equipment.
Authorized service agents should not attempt to provide guidance to doctors and physicians on
actual treatment procedures.
The manufacturer and authorized sales agents assume no liability through the use of this Laser
System.
The manufacturer also assumes no responsibility for the actions of the authorized agents
although all efforts will be made to support and train the agents.
All care has been taken in the preparation and checking of this manual however there is no
guarantee provided that all the information is correct. The information provided in this manual
is subject to change without notice.
Only accessories that are designed and approved for use with the LightLas 532 may be used.
The Manufacturer and Distribution organization shall not be held liable or responsible for
damages or injury caused as a result of using untested and non-approved accessories. This
includes all Optical Fiber systems, Laser Delivery Units, Safety Filters, Safety Glasses and
Table units.
All maintenance and service work must be carried out by authorized service agents and only the
following procedures are allowed. Any service work carried out by non-authorized persons or
not to the procedures contained herein will void all warranties.
Before carrying out any of the procedures that follow in this manual pay particular attention to
the sections and warnings contained within on Safety and Precautions to be taken.
Many of the procedures detailed in this manual can result in exposure to hazardous Laser
radiation so ALWAYS observe eye safety precautions.

10
1.2 How to use this Manual
This manual is intended to provide you, the Service person, with sufficient technical details so
that you can maintain and repair the LightLas 532 Green Laser.
Section 2 of this Manual MUST be read before attempting any service work on the Laser
System so that you are aware of the precautions that must be observed.
Sections 3 and 4 provide details on how the LightLas 532 operates, all of the controls and
displays and the specifications for both the System and its various assemblies. You can read
these sections to gain a better understanding of the LightLas 532.
Section 5 should be read prior to Installation of the LightLas 532. Follow this section to ensure
that you follow all the correct steps when installing the Laser. At the end of the Section is the
Checklist and Report that must be completed and a copy sent to the manufacturer to show that
the unit is functioning correctly. You can use the Checklist at future Service visits to verify the
general operation of the Laser System.
Section 6 contains all the procedures that you should require to perform Maintenance,
Calibration and Alignment of the LightLas 532. It is recommended that you suggest to the
customer that their Laser have a Routine Maintenance performed every 6 months to ensure
correct reliable operation. If the customer does not agree to this then at the very least the Power
Meter must be calibrated every 12 months and the Earth connection checked. These procedures
are in Section 6.1 and 6.2.
Section 6 should also be used, if you have a problem with the LightLas 532, to help identify
which module or assembly to replace.
Section 7 details how to get help from the factory and has a copy of the Service report form to
use when you need help or wish to return faulty parts.
Use the Maintenance History Record in Section 9 to record all Service work carried out on any
LightLas 532 Lasers that you maintain.