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Laserscope 600 Series Dye Laser Service Manual OCR Version

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1. Figure 5 6 DC Power PCB The Temperature and Low and High Pressure Switches via the PD5 Connector The Fiber Coupler Switch Shutter Switches and Attenuator Switch relayed via the Resonator Board Voltage measurements for the LVPS 5v 15v and 15v can be measured on the DC Power Board refer to LVPS description in this section Service Mode can be entered by pressing a red ser vice button located on the DC Power PCB Problems Because the AC and DC Power PCBs provide either directly or indirectly the voltage supply for all of the circuit boards and the moving parts of the Dye U S Version Rev A 9 95 5 17 600 Series Dye Module 5 18 Module any power problems associated with these areas could be caused by a faulty Power PCB If the AC or DC Power PCB is suspect replace and check to see if the problem is rectified If the transformer fails there will be Stepper Motor and Fan faults Rather than trying to replace the wansformer replace the entire AC Power PCB if a faulty transformer is suspected If the dye pump does not start up when the STANDBY ON button is pressed the fault may be either with the LVPS or with the solid state relay on the AC Power PCB Control Panel PCB Location The Control Panel PCB is located on the front display panel of the Dye Module It is the membrane that is pressed to activate the different Dye Module key func tions Removing the Control Panel PCB will involve r
2. PROBLEM If the system detects that the aim beam is not operating the pump interlock light H04 fault will go on CAUSE Either a pump fiber is faulty or the KTP Surgical Laser System is not in the READY mode SOLUTION Replace the fiber or place the sys tem in READY PROBLEM If the AIM beam is detected but the full pump power is not turned on the system will generate an H14 fault CAUSE This usually is caused by not properly attaching the control cable SOLUTION Reattach the control cable The AIM beam path proceeds as follows Refer to Figure 4 3 1 The KTP aim beam is first reflected to the first of two Alm Mirror Towers Transmitter Next the beam is reflected across to the second Aim Mirror Tower Receiver where the beam is then cou pled above the Treatment beam Finally the two beams are focused down into the Fiber Lens Assembly and Fiber Coupler US Version Rev A 9 95 Section 4 Servicing Overview A Path for the Surgical Beam In the second KTP path Treatment or ACTIVE mode 1 The TREATMENT beam is reflected off the Pump Turning Mirror and then enters the 60 mm Condensing Collimating Lens which condenses the energy into a tighter beam 2 The beam then exits the Condensing Collimating lens and travels through the Stepper Motor Attenuator Assembly a mechanical aperture that determines the amount of KTP power being sent to the Dye Cell The amount of laser energy traveling
3. i etri Environmental Requirements The recommended room temperature range is 65 to 800 F U S Version Rev A 9 95 Section 3 System Overview Installation and Operation Table 3 3 shows the water requirements for external cool ing External water cooling of the KTP 532 Surgical Laser System is required for efficient operation when pumping the Dye Module for long treatment periods An External Water Cooling Module PN 10 4611 is required for all 800 Series Surgical Laser Systems Maximum Temperature Minimum Pressure Maximum Pressure Minimum Flow Rate Required Table 3 3 Water Requirements for External Cooling es E pue HIGH Hi Hi Hun ME If te WARNING oo ud iris rap r pu BER SUE Bn HUNE Su ta Aud re che T Eu Hen diii HIR Hs IT i H Moving the Dye Module The 600 Series Dye Module is lightweight and portable and it can be positioned conveniently near the treatment area on a table top cart or mounted on top of the surgical laser However although the 600 Series Dye Module is light weight do not attempt to carry it alone Always obtain U S Version Rev A 9 95 3 9 600 Series Dye Module 3 10 i assistance in transferring the laser to and from the cart Before moving the module complete the following 1 Verify that the Dye Module key switch is OFF 2 Verify that all accessories and cables are disconnected and properly stor
4. ERIES 600 SERVICE MANUAL Table of Contents Section 1 HU Introduction RE MerAUMISRCe a 244 54 2 Bate top ma 1 1 USES of ME VIAL ricos da e 1 2 Section 2 EA Fae v SS Safety Introeduetion u s Lio yee cle SPE Oe re ee SUVS 2 1 Hazards and Precautions 5 2 1 Siew Standart eer opaca Oe A 2 3 Laser Area and Operating Room 2 3 Safety telo O TRO 2 3 Labeling v oe pag ols dat dedo ns eR ES YN 2 4 Precautions to Observe During Servicing 2 7 CAUSE LLL AMENS COR EN TRECE ER E Pe m e 2 7 A E AE 8 165 2 8 Ignition of Flammable Materials 2 8 ERC ido dara Tu rn 2 8 Additional Hazards to Consider 2 8 Components of a Safe Laser Program 2 8 Electrical Hazards cio 7 59704 25 2 9 Sai Hazard Se o dae I al Yas IAE 2 9 Eye Hazards 3 ix rae c eb Ve RA AA 2 10 TOO CO Vereor se Derek SA EE 2 11 U S Version Rev A 5 96 1 600 Series Oye Module Section 3 System Overview Installation and Operation LM A UR A id RU SOR C 3 1 is o AN A A 3 2 600 Series Dye Module lo osu iaa are a 3 2 KTP 532 Surgical L ser 2 os se eel a 3 3 Fiberoptic Delivery System 34 Produot Speofficatlads oss geniin a ere Cee 34 Spase pquremenis Lo wae heh ld RC 3 7 Special Power Requirements 3 8 Environmental Requirements 3 8 Moving the Dye Module ooooooomo 3 9 Cont
5. For 15 VDC measure at orange wire pin 6 and black wire grnd pin 7 e For 15 VDC measure at violet wire pin 8 and black wire grnd pin 7 Measurement at PD9 of DC Power Board e For 5 VDC measure at red wire pin 6 and black wire grnd pin e For 15 VDC measure at orange wire pin 3 U S Version Rev A 9 95 Section 5 Electronics and black wire grnd pin 2 e For 15 VDC measure at violet wire pin 1 and black wire grnd pin 2 Problems If there are problems with the power supplied to the various moving parts and assemblies the cause may originate in the Low Voltage Power Supply Adjusting the 5 voltage pot on the LVPS will adjust ail of the voltages so if the LVPS is suspected as the cause of a problem or if the voltages are not within the indicated range try adjust ing the 5 voltage pot See Figure 5 3 If the voltages are still not within spec replace the LVPS to see if the power problem disappears JUNPER POS TION FOR 230V AC JUMPER POSITION FCA 115V AC is a ob VOLTAGE ADJUSTMEN POT Bn 5 Figure 5 3 Low Voltage Power Supply U S Version Rev A 9 95 5 7 800 Series Dye Module Adjusting the LVPS The 5 VDC is adjusted at the vari able resistor located at R21 at the back of the LVPS shown in Figure 5 4 Adjusting the 5 VDC will also affect the 15 and 15 voltages Ifthe 5 VDC is adjust e
6. SWITCH CB gt gt 12 37 LONG L m c X IER ag OE f m n a El POLY F L_ 12 00 LONG Li gt cp HIGH PRESSURE RESERVOIR EN q SWITCH eh i HIGH PRESSURE a d SWITCH Figure 4 2 Dye Circulation U S Version Rev A 9 95 4 5 600 Series Dye Module wavelength the 532 nm of KTP and almost immediately fluoresce or emit light at a longer wavelength the 600 699 nm needed for Photodynamic Therapy Because the dye is continuously flowing through the dye cell each molecule is exposed to the pump light for a brief instant during which time stimulated emission occurs This light must be intense to produce the necessary popu lation inversion for lasing The resultant light oscillates back and forth between the High Reflector and the Output Coupler passing through the Dye Cell Assembly repeatedly For more information on Dye Circulation and for a description of how to change the Dye Cartridge see Section 7 Dye Circulation The Dye Filter should be changed during the regular Preventive Maintenance Procedure described in Section 9 Wavelength Tuning Tune ability is one of the most useful features of dye lasers Because of the large fluorescent linewidth of the dye the lasing wavelength may cover a very wide tuning range typically 50 100 nm or for the 600 Series Dye Module 600 699 nm In order to continuously tune the dye a wavelength select ing el
7. 600 Series Dye Module Code H13 Problem Treatment ume not set Cause The Treatment Time on the Dye Module has to be set before the module can be put into AIM mode Troubleshooting This is an informational message for the operator It does not indicate a service problem The error will self clear once the treatment time is set Cross Reference e See Section 3 System Overview Installation and Operation for information on operating require ments and specifications 8 22 U S Version Rev A 9 95 Section 8 System Interlocks and Error Codes Code H14 Problem Control Cable or Fiberoptic Cable Connection No KTP Cause The pump laser power does not reach the Dye Module when requested The Pump Detector is not reading any laser light coming from the pump laser Troubleshooting 1 Check the Control Cable and the Fiberoptic Cable for connection and damage 2 If there is nothing wrong with the cables check the pump laser for power capability When the pump laser is emitting KTP light the pump laser screen should indicate that it is active 3 If pump laser is functioning properly check Dye Module Pump Detector reading and make sure Pump threshold is 1 0 watt Cross Reference e See Section 3 System Overview Installation and Operation for information about the Control and Fiberoptic Cables U S Version Rev A 9 95 8 23 600 Series Dye Module e See Section 5 Elect
8. beam is detected If an Aim beam is detected but full pump power is not being achieved an H14 fault will be generated The Dye Module will not emit a treatment beam until these detectors detect the aim beam light Aim Beam Towers Transmitter and Receiver The Aim Beam travels to the first Aim Beam Tower Transmitter where it is deflected to the second Aim Beam Tower Receiver At the Receiving Aim Beam Tower the Aim beam is coupled with the Treatment beam 4 20 U S Version Rev A 9 95 Section 4 Servicing Overview Fiber Lens Assembly and Fiber Coupler The Aim and Treatment beams then pass through the Fiber Lens Assembly where they are focused and aligned into the delivery device fiber Figure 4 5 provides an illustra tion of the beam alignment process Components of the Dye Module not discussed in this sec tion can be found either in the Electronics Section Section 5 or the Dye Circulation Section Section 7 Procedures to correct low power problems and to realign the laser are discussed in the Laser and Optics Section Section 6 i Misaligned Beam Fiber X Y Positioning o Lens ic Beam aligned Into fiber Figure 4 5 Fiber Alignment U S Version Hev A 9 95 4 21 Section 5 Electronics Section 5 Electronics Introduction The Dye Module depends upon the pump laser for laser energy but it supplies its own electrical energy through a power cord located a
9. e See Section 5 Electronics for information on the Pump Green Detector U S Version Rev A 9 95 8 19 600 Series Dye Module Code H12 Problem Low Maximum Power Cause The Dye Module does not reach 7 0 3 2 watts Application Mode or 9 0 4 2 watts Service Mode The microproces sor notes that the maximum power achieved is under the maximum power setting Troubleshooting 1 First check output of pump laser to make sure 30 16 watts of pump laser energy are being transmitted to Dye Module 2 If there is no problem with the pump laser check Dye Module for low power problems such as cable connection to the pump laser dye life of the cartridge or dye contamination and dirty or damaged optics 3 If none of these is the cause of the low power then the Resonator is out of alignment and needs to be realigned 8 20 U S Version Rev A 9 95 Section 8 System Intertocks and Error Codes 4 If it is determined that both pump laser and Dye Module are functioning normally check the Pump Green Detector reading for possible detector mal function Cross Reference e See Section 6 Laser and Optics for information on low power problems and the Resonator align ment procedure See Section 9 Preventive Maintenance for infor mation on the dye flush and filter change procedure e See Section 5 Electronics for information on the Pump Green Detector U S Versian Rev A 9 95 8 21
10. uojnoeuuo ANAIS v2 U S Version Rev A 9 95 2 14 US Version Rev A 9 95 Section 3 System Overview Installation and Operation Section 3 System Overview Installation and Operation Introduction The 600 Series Dye Module is used for Photodynamic Therapy PDT and requires the KTP 532 Surgical Laser System to provide the optical power necessary to operate The complete Dye Module and surgical laser system have three principal components 600 Series Dye Module KTP 532 Surgical Laser Fiberoptic Delivery System The 532 nm output from the surgical laser is delivered to the 600 Series Dye Module via the Fiberoptic Interface Cable The Dye Module controls the operation and power of the surgical laser via a two meter Control Cable The Fiberoptic Delivery System connects directly to the 600 Series Dye Module through the PDT Delivery Device Port Figure 3 1 shows the components of this system and how they are connected Fiberoptic interface Cable Fiberoptic Delivery System ControtCable i Connection to Water Cooling Module AC Power Source _ Figure 3 1 Dye Module and Surgical Laser Connections U S Verslon Rev A 9 95 3 1 600 Series Dye Modute 3 2 System Components The main components of the complete system are described in the following sections 600 Series Dye Module The 600 Series Dye Module converts 532 nm laser energy from the surgical laser system to a diffe
11. 7 1 600 Series Dye Module 7 2 uh r1 uo PRESSURE ri 3 SWITCH a i Cf df HIGH PRESSURE N SwiTCH Figure 7 1 Dye Circulation Dye Module Circulation Description Reservoir Dye Cartridge The Reservoir or Dye Cartridge is a Teflon container which has a capacity of 700 milliliters The supply of dye is maintained in the Reservoir and is constantly being recirculated by the Pump The reservoir is fitted with two stainless steel quick disconnect fit amp ngs which allow dye to flow only when the cartridge is attached Because of the valve like action of these fittings there is minimum dye spillage when the cartridge is removed U S Version Rev A 9 95 Section 7 Oye Circulation System Attached to each of these fittings on the inside of the dye cartridge is a Teflon tube which will suction the dye from the bottom of the cartridge As a result it is not necessary to have the Dye Cartridge filled to the top The Dye Module software is programmed to require that the dye cartridge be replaced after 800 watt hours of use Since the KTP Surgical Laser System pumps the Dye Module with 30 16 watts this would equate to 27 50 hours of use per dye cartridge 800 watt hours approximately 30 watts pump for 27 hours or 16 watts pump for 50 hours When the microporcessor has determined that the 800 watt hour limit has been reached a Dye Change warning message will
12. 9 95 8 17 600 Series Dye Module Code H11 Probjem Power drift in excess of 15 Cause The actual dye laser power is not within 15 of the select ed power The microprocessor is comparing the selected power setting with the reading from the Pump Green Detector and finds that there is more than a 15 variance Troubleshooting 1 The problem may be with either the pump laser or the Dye Module Determine which is the source of the malfunction 2 Ifthe Dye Module is unabie to reach full power the problem may be damaged or dirty optics or the Resonator may need alignment 3 If the problem developed overnight then it could be the result of dye contamination and the dye would need to be flushed and the filter replaced 4 Ifthe Dye Module is unable to adjust to a power change then the problem could be with the Attenuator blades or Stepper Motor Replace the Attenuator Stepper Motor Assembly to see if the problem disappears 8 18 U S Version Rev A 9 95 Section 8 System interlocks and Error Codes 5 Ifitis determined that both pump laser and Dye Module are functioning normally check the Pump Green Detector reading for possible detector mal function Cross Reference e See Section 6 Laser and Optics for information on low power problems and the Resonator align ment procedure See Section 9 Preventive Maintenance for infor mation on the dye flush and filter change proce dure
13. Diagram of PCB Subassemblies 5 21 Figure 5 8 Fiber Output Coupler o 0 0 o 5 24 Fig re o 9 Resonate te vn erage easier das 5 28 Figure DIEGO o Toda tiga rura Perdis thar oe 7 2 Figure 7 2 Dye Cartridge Assembly 7 4 Figure 7 3 High Low Pressure Switch Wiring 7 8 Figure 7 4 Dye Cartridge Replacement 7 10 U S Version Rev A 5 96 9 600 Series Dye Module List of Tables Table 3 1 Product Specifications for 600 Series Dye Module 3 5 Table 3 2 User s Space Requirements 0040 3 7 Table 3 3 Water Requirements for External Cooling 3 9 Taree 1 Brrom oges ts oa Ti aru ch e AD TR 8 2 10 U S Version Rev A 5 96 Section 1 Introduction Section 1 introduction Reader Audience The 600 Series Dye Module is designed to be used in con junction with a KTP pump laser in Photodynamic Therapy This document is the service and reference manual for the Dye Module The information contained in this manual is intended for use by Laserscope service engineers and by those individuals who have completed the Laserscope biomedical training course with certifica tion at the factory site The owner operator is not authorized to remove any of the fixed covers or modules from the system except as described in the Operator Manual for the completion of routine maintenance tasks Removal of any of
14. Output Coupler Mirror Assemblies The High Reflector Assembly acts with the Output Coupler to reflect the treatment beam back and forth through the Dye Cell and the Birefringent Filter Red Detector Wavelength Verification Detector and Bandpass Filter After being reflected back and forth through the High Reflector and the Output Coupler the treatment beam passes through the Red Detector and the Wavelength Verification Detector which monitor and verify the wave length of the beam before it is coupled with the Aim Beam and continues on to the Fiber Lens Assembly If the speci fied wavelength is not detected a signal will travel to the microprocessor via the Analog Input and Mother PCBs and a fault will be generated The Bandpass Filter is also located within this housing It specifies the wavelength of 4 18 U S Version Rev A 9 95 Section 4 Servicing Overview the laser beam that is emitted To change the wavelength replace this filter AIM and TREAT Shutters The Dye Module has two shutters one for the AIM Beam and one for the TREATMENT beam The shutters must be open for the laser light to pass through to the Fiber Lens Assembly and the Fiber Coupler Each shutter can only be either open or closed there are no gradations In the STANDBY ON status both AIM and TREAT shut ters are closed To open the AIM shutter the AIM button must be pressed This sends a signal from the Control Panel PCB to the micr
15. Output Powers veo 3 28 Adjusting the Dye Module Power 3 31 Setting the Treatment Time and Dose 3 31 Activating the AIM Beam 3 32 ITUNE E Aenea ate Hee ee A 3 32 Miming We Systems Off 54 Rao VS 3 33 Section4 Service Overview A A IA 4 1 System DIVERSA TEX aes td da ii nette A 4 1 POWER ape cor hie A AA A UA 4 1 IVIICIODLQUGESOL a ue mas rc or aed eoe al 4 2 SIMA SATA a anri mnm mm etra e 4 3 Pe a sg deu E opem car ri Ried os 4 3 Resonator Assembly eese 4 4 Bye Ciredlaflon snm rez cmm rs ien 4 5 Wa velen ET Dae uuu ceu woe one came E 4 6 U S Version Rev A 5 96 3 600 Series Dye Module Coalinga System cows TELA TOS CIR REL 4 7 Calibssaon Sphere odas iei S VA 4 8 LIMBO rl EQ S 4 9 ACCESS Tor Sersiairip 0 cay cn ELSE IS 4 9 System Des ription wii oe ee ALO AN SE ae ees paren ed sera ces ts aed 4 10 LagesBcani Paths 2 215 esas aen MESA AOS 4 10 A Path for the AIM Beam 4 11 Path for the Surgical Beam 4 13 Resonator Components ro ILU VU Sls 4 15 Fiber Input Mount Assembly 4 15 Pomp Iuthme Muros cio cid RS 4 16 60 mm and 75 mm Condensing Lens Assembles 1 2 3 9T ef SaL rdi 4 16 Stepper Motor Attenuator Assembly 4 16 Flow Cell Assy and 90 Degree Turn Mirror 4 17 Diyt Cell Aesembly S oV V SEIN d oS 4 17 BWixeftihgence Filter lt ek VA SSeS 4 18 High Refle
16. Test Failure H15 RAM Test Failure H19 AIM Solenoid Failure H20 TREAT Solenoid Failure H21 Control Cable Connection Hardware Initialiaation H22 System Power Interrupt H23 Time Clock H24 Jumper Not Connected No Real Time Clock Table 8 1 Error Code On the following pages each Error Code is listed separate ly and discussed in detail Information is provided regard ing 1 probable cause s of the fault 2 troubleshooting suggestions and 3 other sections of the manual where related information can be found 8 2 U S Version Rev A 9 95 Section 8 System Intertocks and Error Codes Code H01 Problem SYSTEM Interlock Cause There are two possible causes of an H01 Fault 1 The Reservoir or Dye Cartridge is not seated properly and the Interlock switch at the Dye Cartridge is open 2 The Temperature Switch on the Heat Exchanger has opened because the dye solution has exceeded 120 F Troubleshooting l First check to make sure the Dye Cartridge is secure ly seated 2 Next check that there are no obstructions clogging the air vents and causing the system to overheat Other possible causes of overheating include The fan is not operating adequately and the dye is overheating Make sure the fan turns on when the STANDBY button is pressed Check the JA4 con nection to see if power is reaching the fan and replace AC Power Board if it is not U S Version Rev A 9 95 8 3 600 Series Dy
17. and 15 DC volts and supplies power to the Stepper Motor via the DC Power and Resonator PCBs the Fan PA4 Connector and the Key Switch and Emergency OFF button PAS Connector e There are two solid state relays SSRI and SSR2 located on the AC Power PCB SSRI causes the LVPS automatically to engage when the key U S Version Rev A 9 95 switch 5 15 5 16 600 Series Dye Module is turned on and SSR2 turns on the dye pump when the STANDBY ON button is pressed DC Power Board Location A schematic of the DC Power PCB is illustrat ed in Figure 5 6 The DC Power Board is positioned verti cally at right angles to the AC Power PCB and the Low Voltage Power Supply refer to Figure 4 1 for location Function The DC Power Board has several functions These include the following The DC Power PCB supplies DC voltages to the Mother Board the Resonator Board the Interlock Switches and the Footswitch The DC Power PCB receives control signals from the CPU PCB and sends drive signals to the AC Power Board to activate the Stepper Motor Dye Pump and Fan via the PD 11 Connector The DC Power Board also monitors the following and sends status signals to the CPU Board via the PD4 Connector The Remote interlock via the PD3 Connector The Dye Change and Dye Cartridge Switches via the PD6 Connector The Footswitch via the PD1 Connector U S Version Rev A 9 95 Section 5 Electronics
18. device Turn off the rear circuit breaker on the KTP 532 Surgical Laser System Disconnect both the 600 Series Dye Module and surgi cal laser power cords from their respective wall power receptacles Turn off the water supply to the water cooling system of the surgical laser 10 Disconnect the water hoses from the water supply and 3 34 drain U S Version Rev A 9 95 Section 4 Servicing Overview Introduction Section 3 of this manual provided a description of the external components of the 600 Series Dye Module and gave operating instructions for its use In this section a brief discussion of Dye Module internal functions is pre sented along with an overview of the components which constitute the Resonator Neither the Electronics nor the Dye Circulation components are covered in this section For descriptions of components and processes that fall into these categories see Sections 5 and 7 respectively The Dye Module unit is very compact the components are layered and no single view will show the entire system or interconnections Figure 4 1 illustrates the Dye Module internals from various perspectives and gives an indication of the accessibility of different components System Overview A brief outline of how the Dye Module operates is provid ed below For more details about any of these processes refer to the specific section in this manual addressing that area AC Power When th
19. e See Section 5 Electronics for information about the Aim Detector and Aim threshold U S Version Rev A 9 95 8 9 600 Series Dye Module Code H05 Problem Attenuator Cause The Attenuator Switch is always open unless the Attenuator blades are fully closed at which point the switch closes The HOS fault indicates that the Attenuator blades are either not opening or not closing completely as requested Troubleshooting 1 Most likely the problem will be a faulty Attenuator Stepper Motor Assembly Sometimes the Attenuator blades stick if they have been opened too wide or the Stepper Motor has continued to run after the blades were fully open Before replacing the Attenuator check the blades manually by adjusting the worm gear screw until the blades go through their full travel then testing the Attenuator to see if the problem disappears If the problem continues replace the Attenuator 2 Ifreplacing the Attenuator doesn t solve the problem check the connection to the Resonator PCB at JR10 Particularly check for bent pins at the connection If there is a bent pin it can usually be bent back into place If necessary replace the Resonator PCB 8 10 U S Version Rev A 9 95 Section 8 System Intertochs and Error Codes Cross References U S Version Rev A 9 95 See Section 4 System Description for more infor mation on the Attenuator and Attenuator Switch See Section 5 Electronics f
20. flash on the keyboard display However even if the Dye Cartridge is not changed the operator can continue to use the system Once 960 watt hours have been reached the Dye Module will display an HO6 fault This fault can be cleared by pressing the STANDBY key H06 fault signals will contin ue to appear each time the Dye Module is activated but they can be cleared each time by pressing the STANDBY key and the system will continue to operate When 1120 watt hours have been reached an HO7 fault will be displayed If this fault is signaled while the Dye Module is in use the operator will be able to continue the current procedure without a system shutdown However Note Replacing the Dye Cartridge is an easy procedure and is routinely per formed by the system operator U S Version Rev A 9 95 7 3 600 Series Dye Module Air Vents Counter Reset Button 8 between Disconnect Fittings in Laser Dye Cartridge Seals 6 E __ Dye Cartridge CT 0 Control Panel AA Release Latch a x A TNI Y Bos Cartridge Removal SSZ Lever Figure 7 2 Dye Cartridge Assembly once the Dye Module has been turned off the system can not be reactivated until the Dye Cartridge has been changed The system keeps track of dye changes by monitoring the depression of a microswitch located between the two Dye Cartridge fittings on the dye bracket holder assembly This switch is pressed manually when a cartrid
21. for more informa tion about the Dye Cartridge and Dye Change pro cedure U S Version Rev A 9 95 8 13 600 Series Dye Module Code H08 Problem Maintenance Warning Cause The system requires service Either it is 10 hours over allowable limit 6 months since last service or it is the second Dye Cartridge change The HOS fault can be over ridden by pressing STANDBY allowing an additional 10 hours of use before system lockout Troubleshooting 1 Perform Preventive Maintenance procedure Cross Reference e See Section 9 Preventive Maintenance for infor mation on how to perforrn a Preventive Maintennance Procedure 8 14 U S Version Rev A 9 95 Section 8 System Interlocks and Error Codes Code H09 Problem Maintenance Limit Cause The system requires service It is 20 hours over the allowable limit The HO9 fault can be overridden to allow use during the current procedure by pressing STANDBY However next startup cycle the user will be prevented from using the system Troubleshooting 1 Perform a Preventive Maintenance procedure Cross Reference e See Section 9 Preventive Maintenance for infor mation on performing a Preventive Maintenance procedure U S Version Rev A 9 95 B 15 600 Series Dye Module Code H10 Problem Power Stabilization Cause The laser cannot adjust to selected power in 5 seconds time The microprocessor is comparing the selected
22. interconnect Diagram of PCB Subassemblies U S Version Rev A 9 95 5 21 600 Series Dye Module sending signals the problem may be a faulty DC Power PCB System Interlocks Location There are four System Interlock switches two at the dye pump high and low pressure indicators one at the Heat Exchanger temperature switch and one at the dye cartridge Function The System Interlocks monitor the pressure and temperature in the dye circulation system PD5 and the proper placement of the Dye Cartridge PD6 Signals concerning pressure temperature and placement status are sent to the DC Power PCB and then relayed tothe micro processor on the CPU PCB Problems If a System Interlock fault is triggered it may be a simple matter of securely positioning the Dye Cartridge However if the System Interlock fault is caused by faulty pressure in the dye pump there could be several causes Among the possible causes of high pres sure are The pump hose is crimped on the output side of the pump The dye pump flow is incorrect often because of clogged lines Low pressure problems could be caused by 5 22 U S Version Rev A 9 95 Section 5 Electronics e Leaks in the hoses connecting to the pump Low fluid level Pump failure Possible causes of high temperature problems include e The Fan is not operating properly and the dye solu tion is overheating The laser has been opera
23. is used to reset ELAPSED EXPOSURE counter to zero when in the STANDBY ON mode Interlock Fault Messages 19 Interlock Fault Messages illuminate to advise the operator of the safety and performance interlock status The inter lock self test activates when the Dye Module key switch is turned on If one or more interlock faults occur during the test or at any time during system operation the word INTERLOCK will appear and the specific interlock requiring attention will illuminate FIBER SYSTEM PUMP or REMOTE The Dye Module will not go into the AIM or TREAT mode if there is an interlock fault A detailed description of each interlock is provided in Section 5 Electronics and the different interlock fault codes are described in Section 8 System Interlocks and Error Codes Dye Change and Maintenance Warning Messages 20 Dye Change and Maintenance Warning messages will illu minate to advise the operator of periodic dye change or maintenance requirements Dye Change and Maintenance procedures are detailed in Sections 7 and 9 of this manual 3 22 U S Version Rev A 9 95 Section 3 System Overview installation and Operation Connecting the System Cable Connections The 532 am output from the surgical laser is transmitted to the 600 Series Dye Module via the Fiberoptic Interface Cable The Dye Module controls the operation and power of the surgical laser via a two meter Control Cable The Fiberoptic Delivery System
24. multiple areas require treatment during a single session The split ter allows the Dye Module output to be delivered evenly to two or more PDT fibers Product Specifications The 600 Series Dye Module is a Class IV laser system under the guidelines provided by the U S Center for Devices and Radiological Health CDRH This classifica tion identifies the Dye Module as an instrument that per mits human exposure during operation to levels of laser radiation in excess of certain accessible emission limits as defined by the CDRH and provided in the U S Code of Federal Regulations 21 CFR 1040 10 Table 3 1 shows the product specifications for the 600 Series Dye Module U S Version Rev A 9 95 Intended Use 600 Series Dye Module Pump Laser System 600 Series Dye Module Performance Maximum Average Power High Power Module Low Power Module Aim Beam Equipment Classification Wavelengths Photodynamic Therapy Quasl CW 25 kHz KTP 532 Surgical Laser with water cooling module arre 7 0w 15 at 630 nm with 30w pump laser power at 532 nm 3 2w 15 at 630 nm with 16w pump laser power at 532 nm 5 mW at 532 nm Class iV Type BF Ordinary Continuous Equipment not suitable for use in the presence of a flammabie anaesthetic mixture or with oxygen or nitrous oxide 630 652 660 and 664 nm 3 nm each wavelength requires a specific Wavelength Verification Unit and ad
25. power setting with the reading from the Pump Green Detector and finds that there is more than a 15 variance Troubleshooting 1 First check the Control and Fiberoptic Interface Cables to make sure they are properly connected and undamaged 2 The problem may be with either the pump laser or the Dye Module Determine which is the source of the malfunction 3 If the Dye Module is unable to reach full power the problem may be damaged or dirty optics or the Resonator may need alignment 4 Ifthe problem developed overnight then it could be the result of dye contamination and the dye would need to be flushed and the filter replaced 5 Ifthe Dye Module is unable to adjust to a power 8 16 U S Version Rev A 9 95 Section 8 System interlocks and Error Codes change then the problem could be with the Attenuator blades or Stepper Motor Replace the Attenuator Stepper Motor Assembly to see if the problem disappears 6 If itis determined that both pump laser and Dye Module are functioning normally check the Pump Green Detector reading for possible detector mal function Cross Reference See Section 6 Laser and Optics for information on low power problems and the Resonator align ment procedure e See Section 9 Preventive Maintenance for infor mation on the dye flush and filter change procedure e See Section 5 Electronics for information on the Pump Green Detector U S Version Rev A
26. the display panel membrane locat ed in the front panel of the Dye Module system Problems If the LED displays are not lighting up then the problem may be either with the Control Panel PCB or the Keyboard Display PCB If replacing the Control Panel PCB doesn t correct the problem replace the Keyboard Display PCB CPU PCB Location The CPU PCB is located in the card cage between the Keyboard Display PCB and the Analog Input PCB and is plugged into the Mother Board which acts as a communicating link Refer to Figure 5 4 Function The microprocessor for the Dye Module is located on the CPU PCB See Figure 5 5 Through it the system functioning is monitored and controlled and diagnostic information is maintained All signals to and from the microprocessor travel via either the Mother Board or the J2 multicolored cable to the DC Power PCB The computer interface for the service laptop is accessed through the CPU PCB The laptop interface signals travel via the J3 blue gray and black wires to the RS 232 Port at the back of the Dye Module System A 3 volt NI CAD battery is located on the back of the CPU Board It provides a power source for the memory 5 12 U S Version Rev A 9 95 Section 5 Electronics chips that store system status information used in field ser vice mode This battery is soldered to the board If it should fail the entire CPU Board will need to be replaced Problems If any problems are e
27. through the Stepper Motor Attenuator Assembly at any time is determined by the position of the Attenuator blades number of steps open or closed 3 The beam then travels through the 75 mm Condensing Lens which is set at its focal distance from the dye cell The two condensing lens assemblies are used to help establish the correct location and height of the beam so it can be focused on to the dye cell 4 Next the beam strikes the Flow Cell Assembly and 90 Degree Turning Mirror where it is deflected and focused onto the center of the Dye Cell Assembly 5 The 532 nm beam is then absorbed by the flowing dye molecules circulating through the Dye Cell Assembly The dye fluoresces and a 630 nm beam is emitted This beam is reflected back and forth between the High Reflector and the Output Coupler U S Version Rev A 9 95 4 13 600 Series Dye Module passing through the Dye Cell Assembly repeatedly 6 The beam also passes through the Birefringent and Bandpass Filters which ascertain and determine the wavelength of the beam It then passes through the Wavelength Verification Detector where the wave length is verified 7 Finally the Treatment beam is coupled with the Aim Beam and focused down into the Fiber Lens Assembly and the Fiber Coupler If the Treatment Beam is not properly aligned at every point in its journey the Dye Module will have low power problems These are discussed in Section 6 Laser and O
28. to perform the calibration procedure I Digital Voltmeter DVM Fluke DVM Model 75 85 or equivalent 2 External Power Meter Integrating Sphere Power Meter UDT Model 2025 with Integrating Sphere UDT Model S370 or equivalent 3 Spectroscope Optometrics USA Model DMC1 035 or equivalent 4 Fiber Bypass Connector Laserscope or SMA 905 US Version Rev A 9 95 es Section 6 Laser and Optics Extender PCB Standard Bus Card PN 5400 0220 Analog Input Board Calibration The Analog Input Board has five active channels ADC1 ADC2 ADC4 ADCS and ADCS8 These are switched under software control to a single A to D converter The outputs of each channel must be adjusted to zero to null any offsets of the detectors for than channel In addition the PUMP ON and AIM thresholds must be adjusted Before starting the calibration procedure prepare the sys tem as follows 1 2 Turn the Dye Module OFF Connect the Fiberoptic Interface Cable from the Dye Module to the surgical laser Place the Analog Input Board on an extender Tum the system ON and access SERVICE mode by pushing the Service Button S1 located on the DC Power PCB The Dye Pump should turn on and stay on until the curtains on the Stepper Motor Attenuator are completely closed When the pump turns off press the ON STANDBY button on the front panel Verify that the Dye Pump turns on and the Dye Module does not start a w
29. 6 3 NITO AS 6 3 o A ARA o iod i d 6 5 Replacing the Pump Fiber ok ces wales 6 6 Redignmen t La voee hee Pr Tub a spare 6 7 Detect alba es Re Ba dee mato 6 7 U S Version Rev A 5 96 5 600 Series Dye Module Power Validation Requirements 6 7 Requived Rauipment A it ce cis 6 8 Analog Input Board Calibration 6 14 PUMP ON and AIM Thresholds 6 10 ADCI ADCS Offset Adjust o ooooo 6 10 Detector Gain Adjustments 6 11 Pump Green Detector 0 25 Volts Watt 6 11 High Power Dye Module 1 Volt Wattt 6 12 uli DEMO e oe plas PAYS SS 6 13 Sphere Detector 1 Volts Watt 6 14 Section 7 Oye Circulation System WOOHOO 150 eol A A Ves eor dati ex d s 7 1 Dye Module Circulation Description 7 2 Reservoir Dye Cartridge unn 7 2 Heat Exchanger and Fan 7 5 O pex drew a 1c dee ROCIO etse 7 6 PE engl IRA Dion P2 S Ue da Ux 7 9 Changing the Dye Cartridge 7 10 Dye Cange Procedure Sac mini se cod ES 7 10 Section 8 System Interlocks and Error Codes INESQUCUON mwai ARP omm Sr e y ol en a 8 1 tror OGGS aks ts lt REA ME 8 2 A M DD ERA 8 3 CASE IMEI IE 8 5 COMES HOS aa waa bio rea IRA RE AR 8 7 Godes A 8 8 6 U S Version Rev A 5 98 Code Code Code Code Code Code Code Code Code Code Code Code Code Code Code Code C
30. A 9 95 Section 7 Dye Circulation System while the pump is on an H02 fault will be generated To check whether the switches are operating correctly measure the voltages at the PDS JDS Connector on the DC Power Board at green wire pin 7 blk green wire pin 8 blue wire pin 9 and blk blue wire pin 10 See Figure 7 3 for a wiring detail of the pressure interlocks The volt ages at these points should all be the same If they are not the switches may need to be replaced There are three tenninal connections on each switch Closed C Normally Closed NC and Normally Open NO e The Low Pressure Switch is wired to the C and NO terminals e The High Pressure Switch is wired to the C and NC terminals If these switches are replaced incorrectly faults will be generated if the wiring is incorrect U S Version Rev A 9 95 7 7 600 Ser ss Dye Module gt as e gf PO y dt A 998 J ff AS DAR i FE SN A AA s u ty x of ra ph SEEN i s 5 ES Es n1 oe i A SS amp Te ii SA Us b PE ME SERVO ST gt SANATATE PISUT Sm tH Figure 7 3 High Low Pressure Switch Wiring US Version Rev A 9 95 Section 7 Dye Circulation System Filter A 0 2 micron filter is located on the output side of the Dye Cartridge It is used to filter out any particulate in the cooling loop This filter should be changed during a sched uled Preventive Main
31. Ae psom 041 mojaq 916201 age uybuajonem Bunesado jaqe7 adAjo5607 uem EE EE eua 0200 puueg Er 18927 19011074 31923430 lavea xoeg JS uo po1e201 1 BuruieM yous 2 5 U S Version Rev A 9 95 To reduce risk of electrical shock remove A er DANGER CAUTION occa LASER RADIATION WHEN OPEN AND INTERLOCK FAILED OR DEFEATED AVOID EYE OR SMIN EXPOSURE TO DIRECT OR SCATTERED RADIATION Ritt al explosion il veed in Ihe presence of smmabie neestetica DANGER This equipment conforms DANGER SER RADIATION WHEN OPEN paa ed LASE DI AVOID EYE OR SKIN EXPOSURE TO U S 21 CFR 1040 10 DIRECT OR SCATTERED RADIATION and 1040 11 For sonsinaed fire protection AVOID EXPOSURE CALIBRATION type and rated fuse LASER RADIATION I5 EMITTED By FROM THE DISTAL END OF THE Date LINE DELIVERY FIBER Date Due VOLTAGE LASERSCOPE 2082 Ortu De San Josa CA 06124 2011 USA MODE JL VOLTS L HE AMP PHLL WAVELENGTHIC Patent Pending Manufactured AAA AE CAUTION INVESTIGATIONAL DEVICE TO BE USED ONLY WITH AN APPROVED INVESTIGATIONAL NEW DRUG IND PERMIT U S Figure 2 2 Contents of labels used on the 600 Series Dye Module 2 6 U S Version Rev A 9 95 Section 2 Safety Precautions to Observe During Servicing Connecting the Dye Module to an AC power source after removing the cover panels will allow exposure to high voltage
32. Cal Pod after a three second delay and a power value will be shown on the Display Panel the total energy delivered in joules Move the fiber tip slightly inside the Cal Pod Pod press AIM and then press TREAT Laser light to obtain the highest value possible nate the fiber and its power delivery capabilities CAL MEM reading represents the power out of the H2 IIT 5 Hold the distal tip of the PDT fiber inside of the Cal 6 Press CAL MEM to lock in this calibration value The bss E Du Hue 14 ip Hi mu ui U S Version Rev A 9 95 or AIM to return to AIM status 7 Press STANDBY ON to return the system to STAND BY 3 30 Section 3 System Overview Installation and Operation Adjusting the Dye Module Power After the output power of the PDT fiber is calibrated the Dye Module power should be adjusted to the desired treat ment power This adjustment is made as follows 1 The 600 Series Dye Module treatment power may be displayed and adjusted in the STANDBY ON AIM or TREAT mode Set the Dye Module to one of these three modes 2 Adjust the treatment power to the desired setting using the UP and DOWN arrow keys The speed with which the power adjusts increases when an arrow key is pressed and held down This feature allows for large rapid power adjustments Setting the Treatment Time and Dose The treatment time and dose are set using the following procedure 1 If there is any valu
33. Laser and Optics Section 6 Laser and Optics Introduction The maximum average output power for the Dye Module is specified as 7 0 watts High Power Module or 3 2 watts Low Power Module for wavelengths ranging from 600 699 nm The ability of the output power to meet this specification can be affected by severa conditions In the event that the Dye Module does not reach 7 0 3 2 watts in Application Mode or 9 0 4 2 watts in Service Mode check the following e Power being received by the Dye Module from the pump laser is 30 16 watts Cable that connects the Dye Module to the KTP Surgical Laser System the Fiber Interface Cable Pump Fiber is not damaged e Life of the dye cartridge and or dye filter has not expired e Optics are in good condition e Resonator is in alignment e Detectors are in calibration This section includes information about and or procedures for the following U S Version Rev A 9 95 6 1 600 Series Dye Module Possible causes of Low Power Problems e Instructions for Dye Module Resonator Alignment e Instructions for Fiber Coupler Alignment e Instructions for Detector Calibration Low Power Problems Low power can be caused by any number of problems Before performing a full alignment procedure there are several other system conditions that should be checked Power from the Pump Laser Using a power meter verify that 30 16 watts of KTP pump laser energy can be se
34. Underwriters Laboratory Standard 544 leakage current requirements as a minimum Skin Hazards The potential for skin injury is mainly to those in the US Version Rev A 9 95 2 9 600 Series Dye Module immediate lasing field These accidents are usually minor and can always be avoided by never firing the laser until the entire path of the laser beam is determined to be safe To prevent the possibility of an accident always observe the beam path carefully prior to firing the laser Eye Hazards Information about eye hazards and protection can be found in the Safety Section of the KTP 532 Surgical Laser System Operator Manual 2 10 U S Version Rev A 9 95 Section 2 Safety Introduction The 600 Series Dye Module is used for Photodynamic Therapy PDT and requires the KTP 532 Surgical Laser System to provide the optical power necessary to operate The complete Dye Module and surgical laser system have three principal components 600 Series Dye Module KTP 532 Surgical Laser Fiberoptic Delivery System The 532 nm output from the surgical laser is delivered to the 600 Series Dye Module via the Fiberoptic Interface Cable The Dye Module controls the operation and power of the surgical laser via a two meter Control Cable The Fiberoptic Delivery System connects directly to the 600 Series Dye Module through the PDT Delivery Device Port Figure 2 3 shows the components of this system and how they are co
35. a Treatment beam The Aim beam continues on to the Detectors and the Treatment beam is deflected by the turning mirror to the 60 mm Condensing Lens 60 mm and 75 mm Condensing Lens Assemblies The 60 mm Condensing Lens is the first of two Condensing Collimating Lens Assemblies that condense the laser energy into a tighter beam The 75 mm Condensing Lens is the second Assembly which acts both as a focus for the beam and helps to position the beam to hit the center of the Dye Cell Stepper Motor Attenuator Assembly The condensed treatment beam exits the 60 mm Condensing Lens and travels through the Stepper Motor Attenuator Assembly on its way to the 75 mm Condensing Lens The Stepper Motor Attenuator deter mines the amount of KTP energy that passes through the Attenuator by the open or closed position of the Attenuator 4 16 U S Version Rev A 9 95 Section 4 Servicing Overview blades A wide open Attenuator one which allows the most laser energy to pass through is about 800 900 steps To open the Attenuator blades wide set the Treatinent sec onds to 800 by pressing the Power UP Arrow If you hear grinding stop This means that the Attenuator blades are already fully open and continued attempts to open them further could cause them to lock To get accurate lasing power the Attenuator blades must respond precisely to the microprocessor instructions A Stability Test described in Section 9 will deterrnine the a
36. anel cover and latch into place by pressing firmly on the cover until it locks into place The system is now ready for use U S Version Rev A 9 95 Section 8 System Interlocks and Error Codes Section 8 System Interlocks and Error Codes Introduction The 600 Series Dye Module has circuitry that automatical ly monitors system functioning and alerts the microproces sor when a problem occurs or a necessary condition is not satisfied In turn the microprocessor will send the appropriate sig nal and an Interlock light on the front panel will flash and or an Error Code will appear in the Power Watts Display refer to Figure 3 4 Depending upon the serious ness of the problem the system will e Display the Error Code but continue to function Display the Error Code and go to Standby for cor rection Display the Error Code and shut down until the problem is resolved Table 8 1 lists the Error Codes with a brief indication of the problem condition U S Version Rev A 9 95 8 1 600 Ser es Dye Module CODE PROBLEM CONDITION H01 SYSTEM Interlock H03 REMOTE Interlock H04 PUMP KTP AIM Interlock HOS Attenuator H06 Dye Life Warning H07 Dye Life Limit HO8 Malntenance Warning HO9 Maintenance Limit H10 Power Stabillzation H11 Power Drift exceeds 15 H12 Low Maximum Power H13 Treatment Time Not Set H14 Control Cable Connectlon No KTP H15 Wavelength Out Of Spec H16 FIBER Interlock H17 ROM
37. arm up cycle U S Version Rev A 9 95 600 Series Dye Module 6 Place the negative probe to Pin 7 of ICI4 on Analog Input Board or analog ground location on the Extender PCB Refer to Doc 0106 7180 Witha DVM adjust the PUMP ON and AIM thresholds and t he ADCI ADCS offsets as described in the following sections PUMP ON and AiM Thresholds Adjust the PUMP ON and AIM thresholds as follows The PUMP ON threshold Adjust Pot 8 unwl IC16 Pin 9 equals 1 0 volt DC 2 The AIM threshold Adjust Pot 9 until ICI6 Pin 5 equals 0 4 volts DC ADC1 ADC8 Offset Adjust With the surgical laser set to STANDBY and the Dye Module in the SERVICE mode adjust the following off sets on the Analog Input PCB of the Dye Module I Pot 1 until TP1 equals 0 volts DC 2 Pot2 until TP2 equals O volts DC 3 Pot4 until TP4 equals 0 volts DC 4 Pot until TPS equals O volts DC 5 Pot 6 until TP6 equals O volts DC 6 10 U S Version Rev A 9 95 Section 6 Laser and Optics Detector Gain Adjustments This calibration involves adjusting five detector boards located in the resonator assembly and one on the integrat ing sphere Listed below are the six detectors and their power voltage relationships followed by the adjustment procedure All adjustments are made on the individual Detector PCBs but they are measured on the Analog Input PCB See Figure 6 6 Before adjusting the detectors perform the followi
38. atment beam 3 Treatment will stop automatically when the preset U S Version Rev A 9 95 Section 3 System Overview Installation and Operation treatment time in seconds is completed The TREAT indicator light will illuminate continuously during a treatment 4 The treatment beam will be discontinued under any of the following circumstances The ELAPSED EXPOSURE counter reaches the value preset under TREAT MENT SECONDS The AIM button is pressed The STANDBY ON button is pressed The OFF button is pressed The key switch is turned OFF An interlock fault is activated and a Help Code is indicated Turning the Systems Off The shut down procedure for the Dye Module and surgical laser system is as follows 1 Turn the 600 Series Dye Module key switch to OFF OFF is signified by the symbol O on the panel near the key switch 2 Turnthe surgical laser key switch to OFF U S Version Rev A 9 95 3 33 500 penes en Man 9 Disconnect the PDT fiber and discard appropriately Disconnect the 600 Series Dye Module Fiberoptic Interface Cable from the Delivery Device Port of the surgical laser and replace the protective cap Store the cable by coiling it around the bracket in the rear of the Dye Module Disconnect the 600 Series Dye Module Control Cable and store appropriately Reconnect the footswitch of the surgical laser system if the surgical system is to be used as a surgical
39. before proceeding to the next steps in installation 5 Disconnect the footswitch of the KTP 532 Surgical Laser System 6 Attach the 600 Series Dye Module Control Cable to the footswitch receptacle of the surgical laser Plug the other end of the Control Cable into the connector marked Control Cable on the back of the 600 Series Dye Module 7 Verify that the Dye Module input power voltage is set for 115 or 230 volts depending upon configuration Back Panel Input Power see Figure 3 4 23 If voltage displayed is not correct refer to Section 5 Electronics to reset input power Plug the Dye Module into the appropriate wall power receptacle 8 Locate the Fiberoptic Interface Cable on the rear of the 600 Series Dye Module See Figure 3 4 21 Remove the fiber protective cap and connect the fiber to the Delivery Device Port if there are two ports connect to Port 1 on the front of the surgical laser 3 26 U S Version Rev A 9 95 Section 3 System Overview Installation and Operation System Operation Turning the Systems On The procedure outlined below should be followed when tuming on the 600 Series Dye Module and KTP 532 Surgical Laser System l Verify that the 600 Series Dye Module and the KTP S32 Surgical Laser Systems have been properly connected See System Connection in this section of the manual Verify that cooling water hoses are con nected and that the cooling water is turned on Tum t
40. c and tf more cleaning is necessary repeat the above To replace the optic put the new optic in the Mount or put a new Fixed Optic Assembly in the Resonator Baseplate Adjust using the X and Y adjustments on the Assembly until a clean spot one without satellites is U S Version Rev A 9 95 achieved Check the power capability If power is now within the acceptable range an alignment is not necessary Calibration To check calibration set the Dye Module power to 1 watt connect a PDT fiber to the Dye Module s PDT Delivery Device Port and insert the fiber tip into the integrating sphere of the NIST traceable standard to get a reading Next put the Dye Module into FIBER CAL mode insert the fiber tip into the calibration insert in the Dye Module Calibration Sphere and press the Aim and Treat buttons on the Dye Module Control Panel Once the reading has stabilized press CAL MEM The laser power reading using the Calibration Sphere should be within 15 of the standard NIST measurement If it is not within this range the power measurement error U S Version Rev A 9 95 6 5 600 Series Dye Module is excessive and the unit should be calibrated as described at the end of this section Replacing the Pump Fiber If the Pump Fiber is defective it will need to be replaced and a full Alignment Procedure will be required It is not possible to test the Pump Fiber while it is connected to the Dye Mo
41. cal Laser The cart has large drawers for storage of manuals protective eyewear power cords interface cables treatment fibers and other accessories Rubber wheels are provided for added mobility If desired the laser may be removed from its cart and placed on a table top or mounted on top of the KTP 532 Surgical Laser System with a specially designed shelf Two thumb screws secure the Dye Module to the cart or the shelf KTP 932 Surgical Laser The KTP 532 Surgical Laser is used as a pump source providing the Dye Module with the optical power neces sary to operate Special features operating instructions and safety precautions for the laser are presented in the KTP 532 Surgical Laser System Operator Manual Service information can be found in the KTP 532 Surgical Laser System Service Manual U S Version Rev A 9 95 3 3 500 Series Dye Module Fiberoplic Delivery System The PDT Fiberoptic Delivery System delivers light from the Dye Module and evenly distributes it over the area being treated The delivery system is a fiberoptic device with a special connector This connector is designed to fit the PDT Delivery Device Port on the 600 Series Dye Module PDT fibers are available from Laserscope and other manu facturers Types of PDT fibers include Cylindrical Diffusers Spherical Diffusers and Microlens Fibers These fibers allow for treatment of a single area A Fiber Splitter can be attached to the delivery system if
42. ccuracy of the Attenuator vis a vis the requested treat ment setting If there is a problem with the Attenuator an HOS fault will be generated Flow Cell Assembly and 90 Degree Turning Mirror The treatment beam enters the Flow Cell Assembly and is deflected by the 90 Degree Turning Mirror once it leaves the 75 mm Condensing Lens The beam is then focused onto the center of the Dye Cell Dye Cell Assembly The dye solution from the dye reservoir is constantly pumped through this Dye Cell Assembly As the KTP beam passes through the center of the dye cell it is absorbed by the flowing dye molecules The dye then flu oresces and a 630 nm beam suitable for dye lasing is emitted This beam passes through the dye cell repeatedly as it reflects back and forth between the High Reflector and the Output Coupler U S Version Rev A 9 95 4 17 600 Series Dye Module Birefringent Filter The Birefringent Filter determines the wavelength of the laser beam It consists of a quartz plate mounted at Brewsters angle within the dye cavity to create a polariza tion of the intercavity light The optical axis of the Birefringent Filter is aligned so that the crystal is at Brewsters angle to the optical axis of the dye laser The laser beam passes back and forth through the Birefringent Filter just as it does through the Dye Cell Assembly in its oscillation between the High Reflector Assembly and the Output Coupler High Reflector and
43. ce power loss may range from 10 to 15 For details about calibrating a delivery device see Section 3 of this manual U S Version Rev A 9 95 Section 4 Servicing Overview RS 232 Port The RS 232 Port located on the right front panel of the Dye Module allows direct access to the Dye Module microprocessor for service and diagnostic information Laptop interface signals travel via J3 blue gray and black wires to the RS 232 Port The information available via the laptop connection includes Number and dates of dye changes Date when next maintenance is due Dye life e Number of seconds system has been in operation since last maintenance Directions for accessing the Dye Module microprocessor via the RS 232 Port can be found in Section 9 Preventive Maintenance Access for Servicing To access the laser resonator and system components remove the top cover The components of the Dye Module are layered and are not all immediately accessible Please refer to Figure 4 1 for an indication of component accessibility To enter Service Mode press the service button on the DC PCB U S Version ev A 9 95 4 9 600 Series Dye Module System Description Introduction The Dye Module does not generate its own laser energy However it does convert the KTP 532 nm laser energy that it receives from the pump laser into the 630 nm laser energy Of the dye laser This conversion is accom
44. ce the pump U S Version Rev A 9 95 8 5 600 Series Dye Modute If the pump seems to be operating properly check fora malfunction of the Low Pressure switch by replacing the switch to see if the problem disap pears 2 Ifthe pump is operating but the HO2 Fault continues there is a problem with either high or low pressure To determine which is the problem condition use an oscillo scope to measure at U7 pin 3 high pressure or pin 4 low pressure on the DC Power Board For high pressure first measure with the pump off and then with the pump turned on the measurement should not change states For low pressure measure with the pump off then turn the pump on the mea surement should change states immediately 3 For high pressure problems check for crimps or blockages in the pump hoses 4 For low pressure problems check for leaks in the hoses 5 If a malfunctioning high or low pressure switch is suspected replace the switch Cross Reference e See Section 7 Dye Circulation for more informa tion about the dye pump and high and low pressure switches 8 6 U S Version Rev A 9 95 Section 8 System Intertocks and Error Codes Code H03 Problem REMOTE Interlock Cause This is caused when the Remote Interlock is open either because the Remote Interlock string is not complete e g the door that the Remote Interlock is connected to is open or because the remote override conne
45. ck the cable connection between the Keyboard Display PCB JK3 PK3 and the DC Power PCB JD8 PD8 If necessary replace the cable 2 Ifthe cable and connection are OK replace the DC Power PCB If that does not solve the problem replace the Keyboard Display PCB Cross Reference e See Section 5 Electronics for information about the DC Power Board Keyboard Display Board and wiring diagram of connection U S Version Rev A 9 95 8 31 600 Series Dye Module Code H22 Problem System power interrupt Cause The system power has been interrupted before the treat ment time was completed This fault can be cleared by pressing the Up Down and STANDBY buttons simultaneously Troubleshooting This fault is caused by someone turning off the Dye Module or hitting the Emergency OFF button while the system is in treatment mode It does not indicate a service problem 8 32 U S Verston Hev A 9 95 Section 8 System interlocks and Error Codes Code H23 Problem Time Clock Cause The Real Time Clock has reached the end of time out and the system is still emitting laser light Troubleshooting 1 Replace the CPU PCB Cross Reference See Section 5 Electronics for information about the different circuit boards and their interconnections U S Version Rev A 9 95 8 33 600 Series Dye Module Code H24 Problem Jumper for Real Time Clock not connected Caus
46. connects directly to the 600 Series Dye Module Delivery Device Port See Figure 3 2 4 The cable connections are achieved via the cables listed below Refer to Figure 3 1 at the beginning of this section for an illustration of the components of the system and how they are connected Fiberoptic interface Cable Receptacle 21 The Fiberoptic Interface Cable optically connects the 600 Series Dye Module to the surgical laser to transfer the 532 nm wavelength light used as a pump source It is penna nently connected to the 600 Series Dye Module and con nects to the Delivery Device Port of the KTP 532 Surgical Laser System during setup For those systems with two Delivery Device Ports the Fiberoptic Interface Cable con nects to Port 1 When disconnected from the surgical laser the Fiberoptic Interface Cable can be coiled onto the special bracket provided for storage See Figure 3 4 26 Control Cable 22 The Control Cable replaces the surgical laser footswitch U S Version Rev A 9 95 3 23 600 Series Dye Module 3 24 and allows the 600 Series Dye Module to control the oper ation and power of the surgical laser This cable is con nected to the footswitch receptacle of the KTP 532 Surgical Laser System Power Cord Receptacle 23 The Power Cord connects the 600 Series Dye Module to the appropriate voltage wall power outlet Service Connection RS 232 Port 24 The Service Connection allows computer connectio
47. ctor and Output Coupler Minor Assemblies ac E A 4 18 Red Detector Wavelength Verification Detector and RR A IIA 4 18 AIM and TREAT Shutters 4 19 Pump Detector and Aim Detector 4 20 Aim Beam Towers Transmitter and Receiver 4 20 Fiber Lens Assembly and Fiber Coupler 4 21 Section5 i Electronics TORBEN A A val wale ae eat oh eels Y v RTT 5 1 Si RARO Ad T 5 2 4 U S Version Rev A 5 96 Table of Contents SuWasseniblies oss 5 oh por INQUE Sd 5 3 Low Voltage Power Supply LVPS 5 6 Measurement at P2 J2 of LVPS 5 6 Measurement at PD9 of DC Power Board 5 6 CECI BOSE uu sve TP a Sa AS ES 5 8 Wey Display PCB i uo lain bie is 5 11 CROCPEG dr TSE 2 Lo Tes Aa 5 12 Mother FOR Maree es RD tas 5 13 Pee SUT ALO NT M aia Msg ow re SR 5 14 BO dne PGBs sii al ees ere 5 15 PYG POWER MINA Abe aie ae Se 5 16 GeielBasel DL de io Fw ae eal e Segoe 5 18 aga dre dut Gate A p 5 20 System IMPOSE iu em Sas ey rng whe ws ae 5 22 o IA ah ed Pee t Oe 5 23 Remote InteMeck 00S a Gs cay oe am 5 25 Funes MENeEk to ous Bas Td Sem i aan 5 25 Ie RES Puno enr a ex Red I Eat Erg yee I 5 26 AC Voltage Configuration 5 30 Section8 Laser and Optics O is las RR 6 1 Low Power Pramenis ns Soe ada rod ya ee 6 2 Power from the Pump Laser 0 sso 6 2 Connecting Calas Ts das A eaa 6 3 Dye Cartridge Filter Change
48. ctor is not in place The Interlock will self clear when the remote string is sat isfied or the remote override connector is in place Troubleshooting 1 Check the Remote Interlock connection to make sure it is properly attached to the door and to the Dye Module 2 Ifa malfunctioning Interlock is suspected measure at U7 14 on the DC Power Board Cross Reference See Section 5 Electronics for more information on the Remote Interlock US Version Rev A 9 95 8 7 600 Series Dye Module 8 8 Code H04 Problem PUMP KTP AIM Interlock Cause The photodiodes in the Dye Module are not detecting any KTP Aim beam laser energy coming from the pump laser This condition could have several causes e The Fiberoptic Interface Cable is not connected or is damaged e The pump laser is notin READY e The AIM beam intensity of the pump laser is too low to be detected by the Dye Module Aim Detector This Interlock will self clear when the pump laser is prop erly online Troubleshooting 1 Check the Fiberoptic Cable from the Dye Module to the pump laser for damage and or proper connection 2 Make sure the pump laser is in READY and that it can transmit sufficient power to the Dye Module U S Version Rev A 9 95 Section 8 System interlocks and Error Codes 3 Check for defective Dye Module Aim Detector by measuring voltage output Also check that threshold is 4 watts Cross Reference
49. d therefore be sure that all three voltages are in spec Circuit Boards Analog Input PCB Location Removing the top cover of the Dye Module reveals the Analog Input PCB located in the card cage below the Keyboard Display PCB and the CPU PCB These circuit boards are all plugged into the Mother PCB wit MIO wie fei Gd cegoo2oQao 3 5 gccsoscctoc te ve O arco 5 8 m c csovna tib TAE Rer COMPONENT SIDE Siow Ri 5 gt Gror 2 ae ey tite Srosoccomougagz l z af D QDD nono S Figure 5 4 Analog input PCB 6 PES aay oO Ree 5 jones Q 8g se IRA Psar a ES E x r 3 epe impo Ali Aj Ic e WAzrkO s Sof gt an oc ro p A n E M 1 Oc 2 d bs L i S Bonn H g 20 S go 5 e e B2 t iczo7 a barca D bo CBS o Q2 Lars O L PL ru ar v 2 nt U S Version Rev A 9 95 Section 5 Electronics which serves as the communicating link between the three See Figure 5 4 To remove simply pull out of the card cage Function The Analog Input PCB receives the detector analog voltage readings from the Resonator PCB converts them to digital signals and then sends the digital data to the CPU Board and the microprocessor via the Mother Board It also regulates the 15v and 15v that it receives from the Mother Board to 12v and 12v for the Detectors The dedicated op amp drive circui
50. dule because of lack of space so even if the Pump Fiber is found to be good after it is removed and tested an Alignment Procedure will have to be performed after the Fiber is reinserted To test or replace the Pump Fiber unscrew the Fiber inside the Pump Fiber Mount Assembly There are 2 screws on the inside of the back panel Loosen these for easier access Unscrew the strain relief which is mounted to the back plate and pull the Pump Fiber through To test set Dye Module to AIM mode and focus beam against wall to check size of Fiber against a known good Fiber To measure the Pump Fiber measure the Fiber transmis sion using a power meter then compare with the power setting If Fiber is defective replace 400 um fiber for High Power 300ym fiber for Low Power and realign the U S Version Rev A 9 95 Section 6 Laser and Optics Dye Module If Fiber is not defective reinsert and realign the Dye Module Realignment If the Dye Module continues to have low power problems an alignment of the Dye Module as described on the fol lowing pages will be necessary For realignment proce dure refer to document 0106 3330 Realignment should only be done by Laserscope trained personnel Detector Calibration The Following gives step by step description of the proce dure for calibrating the Dye Module detectors This pro cedure is necessary whenever there is a substantial dis crepancy between the selected power and the actua
51. e The jumper for the Real Time Clock is not connected to the CPU Board Troubleshooting 1 Connect the jumper pins 3 and 4 at J17 Cross Reference e See Section 5 Electronics for information about the various circuit boards and their interconnections 8 34 US Version Rev A 9 95
52. e AIM and TREAT shutters by pressing Note Older dye iaser systems have a 2 volts watt configuration on the red detectors if you are unsure on your system s configuration please consult Laserscope s Technica Support Group 6 12 U S Version Rev A 9 95 Section 6 Laser and Optics AIM then TREAT The power could exceed 4 watts at this point 4 Adjust the Power Control Down button until the power on the External Power Meter reads 2 to 3 watts 5 Monitor the Red Detector output at TP2 of the Analog Input PCB and adjust the gain potentiometer until the DVM reads 1 to 1 the External Power Meter reading 2 4volts DC for 2 4 watts 6 Using the Spectroscope verify that the wavelength is 6XX nm 3 nm 7 Adjust Bandpass Filter to peak or maximize 6XX nm Detector output 8 Adjust the Wavelength Detector output measured at TP4 to equal the Red Detector measured at TP2 Aim Detector 1 Set the surgical laser to deliver 16 watts uncalibrated and the AIM beam to HIGH 2 Put the surgical laser in READY mode 3 Adjust the Aim Detector output of the Dye Module to maximum while the Dye Module is in STANDBY mode U S Version Rev A 9 95 6 13 600 Series Dye Module Sphere Detector 1 Volts Watt 2 Tum the Dye Module OFF Remove the Calibration Sphere Assembly from the Dye Module Connect the Interface Control Cable to the Surgical Laser Turn the Dye Module ON and pres
53. e Module The laser has been in high power operation for too long without pause and the system is overheating The Dye Module has been operating in a room without adequate air conditioning 3 Ifitis determined that the Reservoir is securely placed and the dye solution is not overheating then check for a malfunction in either the Dye Cartridge switch or the Temperature switch by replacing one and then the other to see if the problem is rectified Cross Reference See Section 7 Dye Circulation for information about the Dye Cartridge e See Section 5 Electronics for information about the Temperature Switch 8 4 U S Version Rev A 9 95 Section 8 System interlocks and Error Codes Code H02 Problem SYSTEM Interlock Cause There is a fluid system failure which could be caused by three conditions e The pump is not turning on when the STANDBY button is pressed The pump pressure when operating is above 65 psi and the High Pressure Switch has opened The pump pressure when operating is below 25 psi and the Low Pressure Switch is open Troubteshooting 1 First check to see that the pump is turning on when the STANDBY button is pressed If it is not e Check the PA3 Connector to the AC Power Board to see if power is being received If there is no power reaching the pump replace the AC Power PCB If power is being transmitted but the pump motor is not starting repla
54. e appropriate TREATMENT SEC ONDS control buttons Treatment time may be adjusted in either STANDBY ON or AIM modes Elapsed Exposure Display 16 ELAPSED EXPOSURE displays the treatment parameters in either seconds elapsed or energy delivered in joules as selected by the operator The counter may be reset to zero 3 20 US Version Rev A 9 95 Section 3 System Overview Installation and Operation by pressing the RESET button when in the STANDBY ON mode The counter begins advancing only in TREAT mode In order forthe JOULES counter to display the energy deliv ered out of the fiber during treatment the fiber must be calibrated If the Dye Module is operated without fiber calibration no joule value will be displayed The ELAPSED EXPOSURE counter will stop under the following circumstances e Counter reaches the value set under TREAT MENT SECONDS The AIM button is pressed The STANDBY ON button is pressed e An interlock fault is detected The treatment fiber is inserted into the power meter Seconds Joules Button 17 The SECONDS JOULES button allows the operator to select the parameter to be displayed in the ELAPSED EXPOSURE display window during treatment either SECONDS of time elapsed or JOULES of energy deliv U S Version Rev A 9 95 3 21 600 Serres Dye Module ered The JOULES button must be pressed twice in order to access the JOULES display Reset Key 18 The Reset Key
55. e four inter locks include U S Version Rey A 95 Section 5 Electronics 1 System Interlock 2 Remote Interlock 3 Pump Interlock 4 Fiber Interlock e One Transformer One transformer located on the AC Power PCB converts AC power via a bridge rectifier to DC power between 13 and 15 volts The transformer supplies the Stepper Motor and the Fan e Six Detectors Six detectors monitor the power levels of the Aim and Treatment beams and the Calibration Sphere 1 Red Detector 2 Pump Green Detector 3 Aim Detector 4 Pump Detector 5 Wavelength Detector 6 Sphere Detector Each of these subassemblies is described in more detail on the following pages U S Version Rev A 9 95 5 5 600 Series Dye Module Low Voltage Power Supply LVPS Location The Low Voltage Power Supply LVPS is positioned vertically toward the back of the Dye Module facing the AC Power PCB Refer to Figure 4 1 for exact location Function The Low Voltage Power Supply generates 5 4 8 to 5 2 VDC 15 14 4 to 15 6 VDC 15 14 4 to 15 6 VDC and 5 not used voltages and supplies them to the DC Power PCB Voltage measurements can be taken either from the P2 Connector on the LVPS or from the top of the PD9 Connector on the DC Power PCB Refer to Figure 5 2 The wiring for each is as follows Measurement at P2 J2 of LVPS For 5 VDC measure at red wire pin 2 and black wire grnd pin 4
56. e other than 0000 displayed in the ELAPSED EXPOSURE window press the RESET button to cancel the current display and reset to 0000 RESET will erase any value displayed in the ELAPSED EXPOSURE readout and will set the counter back to zero 2 Set the desired treatment time in seconds from 0 to 9999 by pressing the four TREATMENT SECONDS control buttons located below the display window U S Version Rev A 9 95 3 31 600 Series Dye Module 3 32 3 Choose the ELAPSED EXPOSURE parameter you want displayed during treatment by pressing either the SECONDS or JOULES button The JOULES display is only active if the PDT fiber has been calibrated Activating the AIM Beam To activate the AIM beam press AIM launching the low power green aiming beam 532 nm at lt 5 0 mW into the treatment fiber The AIM beam will not activate until a treatment time has been selected Due to the low power protective eyewear specifically for the 532 nm wavelength is not required The AIM beam may be used to examine the condition of the treatment fiber and to identify the area to be treated The AIM beam power will not be displayed Treatment When treating an area the procedure outlined below should be followed 1 Position the PDT fiber at the treatment site as speci fied by the clinical protocol 2 Press TREAT to start the treatment cycle of the Dye Module There will be a three second delay prior to emission of the laser tre
57. e power cord located on the back of the Dye Module unit is plugged into an AC outlet 5v 15v 15v and 5v not used will be supplied to the Low Voltage U S Version Rev A 9 95 Seclion 4 Servicing Overview 4 1 600 Serres Dye Module 4 2 Power Supply When the key switch is turned on these voltages will be supplied to the Power Circuit Board The Power PCB then provides the low voltages to the system components Two transformers located on the Power PCB convert AC power to DC Filter f Cartridge S Heat Exchanger Figure 4 1 Dye Module intemals Microprocessor The main controlling element of the Dye Module is a microprocessor based computer located on the CPU Circuit Board one of the circuit boards located in the card cage and plugged into the Mother Board U S Version Rev A 9 95 Section 4 Servicing Overview The main functions of the microprocessor include Operating the system Monitoring all system functions Maintaining diagnostic information for service use The microprocessor can be accessed for service purposes through the RS 232 Port on the right front panel of the Dye Module A step by step description of how to access the computer via this Port is given in Section 9 Preventive Maintenance System Startup Inserting the key and turning the key switch on will engage the J1 Connector which will turn on the Low Voltage Power Supply and power up the Power PCB T
58. eat Exchanger as the dye circulates through it The fan automatically turns on when the Standby On button is pressed The Dye Reservoir holds approximately 1 8 liters of dye solution A motor driven pump which receives power U S Varslon Rev A 9 95 4 7 600 Series Dye Module from the AC Power PCB forces the dye solution to circu late from the Dye Reservoir to the Heat Exchanger and Output Filter then through the cavity and the Dye Cell Assembly and back to the Reservoir Refer To Figure 4 2 for an illustration of the dye circulation precess The dye constantly circulates in this manner as long as the Dye Module is in STANDBY ON AIM or TREAT status If the dye pressure is either too high above 60 psi or too low below 25 psi a high or low pressure switch will be triggered sending a signal to the DC Power PCB and via the P8 Connector and the J2 multicolored cable to the CPU microprocessor An Interlock fault H02 will be generated and the system will shut down until the dye solution returns to an acceptable temperature For more information about Cooling System components see Section 7 Dye Circulation Calibration Sphere The 600 Series Dye Module has an internal Calibration Sphere which is permanently connected to the console It is used to calibrate the delivery devices in order to com pensate for power loss during laser beam transmission from the Fiber Coupler to the patient Typical delivery devi
59. eat Exchanger and Fan The Heat Exchanger in the Dye Module is much like the radiator used in an automobile The dye solution is pumped through the Heat Exchanger which is fitted with cooling fins to dispose of the heat generated within the U S Version Rev A 9 95 7 5 600 Series Dye Module 7 6 dye solution A Fan which is mounted on the reverse side of the bracket that holds the Heat Exchanger also assists in the cooling process The Fan and Pump are both activated when the ON STANDBY key is pressed A temperature switch thermal cut out located on the Heat Exchanger refer to Figure 7 1 monitors the temperature of the dye solution and sends this information to the microprocessor via the DC Power Board An HO1 fault is generated when the temperature reaches above 120 F Pump The pump has an output of 2 liters per minute Two pres sure switches Refer to Figure 7 1 for location monitor the pump and dye flow pressure Pressure Interlocks The two pressure interlocks that monitor the dye flow pressure include e A Low Pressure Switch that is activated when pressure reaches 25 psi 1 2 psi e A High Pressure Switch that is activated when pressure reaches 60 psi 1 2 psi When the system is off the High Pressure Switch should be closed and the Low Pressure Switch should be open When the system is operating and the pump is running both switches should be closed If either switch is open U S Version Rev
60. ective eyewear should always be worm when servicing the Dye Module if the Dye Module is connected to the pump laser The recommended protective eyewear is provided with the 600 Series Dye Module These goggles and spectacles have a minimum optical density rating of 4 0 and are suit able for use at up to 8 0 watts of power at wavelengths from 600 699 nm Hu iW idi H AREE LT f MO s git Det ER bi i i te dd u ii D a qup US Version Rev A 9 95 Section 2 Safety Safety Standards The American National Standards Institute ANSI in The Safe Use of Lasers in Health Care Facilities Z136 3 and The Safe Use of Lasers Z136 1 has specified control measures to protect the operators attendants and patients involved in the use of lasers Standards are also provided by the U S Food and Drug Administration s Center for Devices and Radiological Health CDRH Any individual involved in the operation or servicing of a laser should read and thoroughly understand the stan dards provided by ANSI CDRH and other organizations Laser Area and Operating Room Precaution against unsafe laser energy exposure mandates that a Class IV Laser Controlled Area be established by the facility and managed by trained personnel under the guidelines provided by the U S Center for Devices and Radiological Health CDRH For information and recommendations concerning laser area and operating room sa
61. ed Unplug and secure power cord in cart Disconnect Fiberoptic Interface Cable from the surgical laser Replace the red protective cap and wrap the cable around the coiling bracket on the rear of the Dye Module Disconnect the Control Cable and the PDT fiber 3 Transfer the 600 Series Dye Module to the cart and secure it using the thumb screws provided under the cart or shelf pedestal 4 Roll the Dye Module and cart to the desired location 5 Alternatively the Dye Module may be mounted on top of the surgical laser and secured with a specially designed shelf and moved with the surgical system 6 Ifa mounting surface other than the custom designed cart or surgical laser is used it must be larg er than the Dye Module s base with a level and non slippery surface If placed on a cart the cart should have wheel locks to prevent uncontrolled motions of the Dye Module U S Version Rev A 9 95 Section 3 System Overview Installation and Operation Control Panel and System Features The 600 Series Dye Module controls are functionally arranged on the colored membrane touch panel All opera tions are performed by pressing the appropriate buttons Figure 3 2 identifies the features and controls located on the front of the Dye Module Figure 3 3 shows the control panel details and the illuminating message screens Figure 3 4 shows the features and controls located on the back of the Dye Module The control
62. ement must be present In the case of the Dye Module this element is the Birefringent Filter The wave length that is emitted from the Dye Cell Assembly is a U S Version Rev A 9 95 Section 4 Servicing Overview result of the chemical composition of the particular dye used and the wavelength characteristics of the pump laser For the 600 Series the wavelength conversion ratio is approximately 25 33 e g 16 watts of KTP in 4 5 watts of 630 nm out The Birefringence Filter consists of a quartz crystal plate mounted at Brewsters angle within the dye cavity and rotated on its axis to tune the dye laser beam to a specific wavelength in this case 630 nm 3 nm The Bandpass Filter determines the wavelength sel cted To select a different wavelength a different Bandpass Filter must be installed Currently there are four possible wavelength options available on the World Dye Module version These include 630 652 660 and 664 The Red Detector and Wavelength Verification Detector monitor and verify that the wavelength emerging from the Birefringence Filter is the wavelength specified If the wavelength detected is not within the acceptable range a fault will be generated H15 This fault can however be overridden by pressing the Standby On button Cooling System The cooling system for the 600 Series Dye Module con sists of a Fan powered by the Power PCB that constantly blows room temperature air against the H
63. emoving the front panel five bolts unscrewing the four screws of the Control Panel PCB and disconnecting the ground wire and cable and pulling the PCB through the front panel area Function Like the Keyboard Display PCB the Control Panel PCB sends control signals to the Dye Module LED display panel It contains all the LED arrays for the dis play panel Problems Any problem with the LEDs should first be checked at the Control Panel PCB To check the LEDs press simultaneously the Power Up and Power Down but U S Version Rev A 9 95 Section 5 Electronics tons green buttons This will light all the LEDs on the display e Ifa LED segment does not light replace the Control Panel PCB e Ifa LED array does not light check the Control Panel PCB voltages at P3 You should read 5v red wire 15v orange wire and 15v vio let wire If these values are more than 10 off check the voltages at PD12 on the DC Power PCB If the voltages are OK but a panel of LEDs still does not light replace the Keyboard Display PCB Circuit Board Interconnects Low voltages 5v 15v and 15v are received by the DC Power PCB from the LVPS Voltages are distributed by the AC and DC Power Boards to the system compo nents Control signals for the components are sent and received by the DC and CPU Power Boards The DC Power PCB plugs into the Resonator PCB at the JD13 JR12 Connector It supplies 5 15 and 15 DC v
64. fety precautions please refer to the KTP 532 Surgical Laser System Operator s Manual Safety interlocks The 600 Series Dye Module and the KTP 532 Surgical Laser System have been designed to include various safety U S Version Rev A 9 95 2 3 600 Series Dye Module interlocks ANS and CDRH standards require that such interlocks be incorporated into any laser or laser system used within the United States The 600 Series Dye Module meets or exceeds these safety requirements The safety interlocks provided in the 600 Series Dye Module are described in Section 5 Electronics and Section 8 System Interlocks and Error Codes Labeling Certain labeling mandated by Title 21 of U S Code of Federal Regulations 21 CFR 1040 10 1040 11 has been affixed to the 600 Series Dye Module This labeling includes identification of the manufacturer the laser class laser apertures electrical specifications and appropriate waming and caution statements Figure 2 1 shows the location of this labeling on the 600 Series Dye Module Figure 2 2 illustrates individual label details 2 4 U S Version Rev A 9 95 Section 2 Safety ainpoy 9 G sauas 009 941 uo sjaqe je JO SYS uoge20j IYL L z enbig sano doy 43409 Joyeuosay jeuigju uo paje201 Sess Jeqe uonggaimuep 9q 18409 pexoojeju uoN ld 1eq87 uogeqi en leqg asp papueju elnuedy nding Aq paye207 jage enyedy jaqe7 uomeolruag uyBueja
65. formation to the microprocessor The computer compares the Pump Detector reading with the power listed on the Control Panel When the two readings are not in line a light will be displayed AIM Detector The Aim Detector monitors whether or not the Aim beam is functioning and sends this information to the computer If the Aim Beam is not detected a light will be displayed Pump Detector The Pump Detector monitors the KTP power going through the dye cell and sends this information to the microprocessor which then compares it to the dye life records If the dye is over the wattage life allowed a light will be dis played Sphere Detector The Sphere Detector monitors the light transmitted through the fiber and sends this information to the microprocessor which com 5 27 600 Series Dye Medule pares it to the system s calibration memory e Wavelength Detector The Wavelength Detector also monitors the wavelength and verifies that it is the wavelength recognized by the Red Detector The computer displays a light if the wavelength is not the specified wavelength Problems When troubleshooting detector faults first check the voltage readings at the detector PCB test points on the Analog Input PCB See Figure 5 4 and Analog Input PCB description in this section Increase and decrease the power settings on the Dye Module Control Panel You should see the voltage readings increase and decrease with the changes in laser
66. fulfill these requirements can result in intennit tent operation and can damage the laser systems Read the following information carefully Space Requirements The space requirements for the 600 Series Dye Module are shown in Table 3 2 Dye Module 11 inches 20 inches 18 inches 54 paunds Dimensions are without cart Table 3 2 Dye Module Space Requirements For space requirements for the KTP 532 Surgical Laser System consult the laser Operator Manual U S Version Rev A 9 95 3 7 600 Seri es DR Module 3 8 dus Hainer ee HE XM IUE N OTE da EHEN On ed uu Power connections must be within a radius of six feet from where the surgical laser console wil be positioned in the treatment room The surgical laser console in turn must be able to be positioned not more than seven feet from the center line of the treatment table Special Power Requirements There are no spedal requirements for the 600 Senes Dye Module Refer to Table 3 1 for Dye Module electrical needs There are however special power requirements for the KTP 532 Surgical Laser System Refer to the laser system Operator or Service Manual for the power require ments appropriate to the system and the country HE TE Lu E tes ud 14 22002222 E z HET TEAREN v trth 124181 EH in H E Hanik H i nu E ui ee st LUI HI Li INHI LE are se Ally E in T ets pet TE an i E ii TRS H
67. gain access to the Resonator PCB the Resonator Baseplate must be removed To remove the baseplate remove the four screws and lift the baseplate up then remove the Resonator PCB from the underside of the Baseplate Function The Resonator Board receives low voltages from the DC Power PCB Control status and power sig nals for the Detectors Shutters Attenuator and the Fiber Switch all travel via the Resonator PCB to and from the Analog Input PCB and the DC Power PCB The six Detectors are connected to the Resonator PCB 5 14 U S Version Rev A 9 95 Section 5 Electronics Problems Any problems involving signals for the Detectors Shutters Attenuator or Fiber Coupler could be the result of a faulty Resonator PCB To check replace the Resonator Board AC Power PCB Location The AC Power PCB is located along the back of the Dye Module It is posimoned vertically facing the Low Voltage Power Supply Refer to Figure 4 1 for loca tion Toremove unscrew the four screws located at the base Function The AC Power PCB performs severat functions See Figure 5 5 It receives high voltage from the AC Entry Module and routes it to the Low Voltage Power Supply AC Input when the key switch is turned on The AC Power PCB supplies AC power via a solid state relay to the dye pump PA3 Connector e One transformer is located on the AC Power PCB It converts via a bridge rectifier AC volt age to between 13
68. ge is replaced See Figure 7 2 for reference A step by step procedure for cartridge replacement is included at the end of this section After 800 watt hours have elapsed since the second Dye Cartridge has been changed a Maintenance Due mes 7 4 L S Version Rev A 9 95 Section 7 Dye Circulation System sage will be displayed An H08 fault will be displayed once the watt hour limit reaches 960 but the fault can be cleared by pressing the STANDBY key After 1120 watt hours have been reached since the second Dye Cartridge change an HO9 fault will be displayed If this fault occurs during use the system will continue to operate for the current procedure However once the sys tem has been turnedoff it cannot be reactivated until a maintenance procedure is performed The only method to clear the HO9 fault besides perform ing maintenance is to interface with the Dye Module s computer via the RS 232 port on the back of the system have the correct diagnostic software and understand the commands to clear the fault See Section 9 for procedures on using the diagnostic software The Maintenance Due message will also be displayed automatically when 6 months have passed from the instal lation date This is regardless of the number of dye changes or watt hours accumulated Again the only method of clearing this fault is to interface with the Dye Module using the diagnostic software and to reset the 6 month counter H
69. hang ing the Dye Filter is described in Section 9 Preventive Maintenance Defective Optics In a laser system the optical coatings will sometimes degrade over a period of time This can cause two major problems low power and or a noisy or unstable laser It does not take much time or effort to inspect and clean these optics because the mounts for the optics are extreme ly rigid This means that when an optic is removed U S Version Rev A 9 95 6 3 6 4 cleaned and then put back it should still be close to 100 aligned To inspect an optic remove the suspect optic and closely examine it under a strong light Mark the top edge of the optic so there is a reference to show how it was seated You have to turn it at different angles because coatings will sometimes develop bleached out spots that are extremely difficult to see If the optic has bleached spots or a blatantly burnt spot on the surface you can try to clean it and then rotate it in its holder so that the laser beam passes through a new spot on the optic But if the bleached or burned spot is in a position where the beam will always pass through it you must change the optic To clean the optic use Lens Cleaning issue and a solution of methanol and acetone Hold a sheet of the lens tissue by one comer and put a drop of acetone in the center of the sheet Fold the sheet and drag it across the surface of the optic then discard the sheet Inspect the opti
70. he microprocessor and all of the safety interlocks will also activate If there are any interlock faults at this time they will be illuminated on the contro panel For more infor mation about Interlocks and Interlock faults see Section 5 Electronics and Section 8 Interlocks and Error Codes The POWER WATTS SECONDS display will also illumi nate but no values will be shown Powering Up Pressing the STANDBY ON button will trigger two white relays A3 and A4 on the Power PCB This will cause the dye pump to activate the cooling fan to start up and U S Version Rev A 9 95 4 3 600 Series Dye Module 4 4 the dye circulation to begin The computer will also begin an initialization sequence During the initialization sequence the ELAPSED EXPOSURE counter will count down the time before the Dye Module can be used 66 seconds maximum The LED displays will also illumi nate at this time If the powering up sequence is success ful treatment parameters can then be set Resonator Assembly The Resonator Assembly is a flat metal where the 532 nm laser energy received from the pump laser via the Pump Fiber is converted to the 630 nm 3 nm wave length needed for dye lasing The dye laser beam is then channeled to the delivery device for treatment The path along which the laser Aim and Treatment beams travel is described later in this section The train for the KTP optic is divided into two sections referred to as
71. he glass Calibration Pod Cal Pod Insert is removed prior to closing cover to avoid damage Standby On 5 Pressing the STANDBY ON button activates the dye pump begins dye circulation starts the cooling fan and activates the initialization sequence of the Dye Module However no laser beam is transmitted in this mode The LED displays will illuminate POWER WATTS TREAT MENT SECONDS and ELAPSED EXPOSURE At startup a short initialization period will occur during which the ELAPSED EXPOSURE counter will count 3 12 U S Version Rev A 9 95 Section 3 System Overview Installation and Operation some 1 28 3 Ew dd ese E EM Um am ELE j Led Ju U S Version Rev A 9 95 PDT Delivery Device Port Power Meter o Y p 2 Emergency OFF Figure 3 2 Features located on the Front of the Dye Module 3 13 600 Series Dye Module down the time remaining before the Dye Module can be used Following this warm up period maximum of 66 sec onds the LED readouts will display the following values POWER WATIS 0 10 TREATMENT SECONDS 0 ELAPSED EXPOSURE 0 POWER WATTS and TREATMENT SECONDS values may be set or adjusted but the ELAPSED EXPOSURE counter will not advance in the STANDBY ON mode After startup the STANDBY ON button can be pressed at any time to discontinue aiming treatment beams Pressing this button will als
72. he surgical laser system circuit breaker ON Turn the surgical laser system key switch ON After the system has powered up press the surgical laser STANDBY ON button A brief warm up period will elapse during which the surgical laser display will count down the remaining time until the laser is READY At the end of the warm up period the surgical laser display will show System Status STANDBY along with the power setting in watts The surgical laser is equipped with device signature recognition When the 600 Series Dye Module Fiberoptic Interface Cable is connected to Delivery U S Version Rev A 9 95 3 27 600 Series Dye Module Device Port I of the surgical laser the operating para meters will automatically be set to the following DMsbeam e S354 cds whey Green High ETNIA JE A a re PAR n ea A 30 16 watts WAVELENGTH PA 1 KTP 532 DURATION cats 3 ee c ys a tl mme Continuous AUTOMATIC EYE SUE BUY FILTERS a2 iced aed Disabled OH 7 Press the READY button on the surgical laser 8 Turn the 600 Series Dye Module key switch to ON signified by the symbol I on the panel near the switch A FIBER interlock message will normally display if you have not yet connected a PDT fiber to the Dye Module Any other interlock message at this time is a fault Check Section 8 System Interlocks and Error Codes to remedy the fault before proceeding 9 Press the STANDBY ON button A 66 second warrn up peri
73. int TP6 Adjustment POT6 Specification 0 25 V W e g 7 5 VDC at 30 watts Sphere Detector Test Point TPS Adjustment POTS Specification Low Power 1 V W e g 5 0 VDC at 5 watts High Power 2 V W e g 10 0 VDC at 5 watts 5 10 U S Version Rev A 9 95 Section 5 Electronics Wavelength Detector Test Point TP4 Adjustment POT4 Specification Low Power 1 V W e g 5 0 VDC at 5 watts and within 5 of Red Detector High Power 2 V W e g 10 0 VDC at 5 watts and within 5 of Red Detector PumpOn Threshold Test Point U16 pin 9 Adjustment POTS Specification Adjust to 1 0 volt DC Aim Threshold Test Point Ul6 pin 5 Adjustment POT9 Specification Adjust to 0 4 volts DC Problems If the voltage measurements at the detectors are incorrect check the voltage test points on the Analog Input PCB to see if there is any output If voltage values are off try to adjust them to bring output readings back to specificaNon Keyboard Display PCB Location The Keyboard Display PCB is located in the card cage above the CPU PCB and is pluggedinto the Mother PCB which acts as the communicating link Refer to Figure 5 4 To remove simply unplug from the Mother Board and pull out of the card cage U S Version Rev A 9 95 5 11 600 Series Dya Module Function The Keyboard Display PCB sends the encod ed decoded LED control signals via the P2 connector to the Control Panel PCB
74. justment of the Birefringence Filter Beam Divergence 16 2 Pulse Duration 380 780 nsec Table 3 1 Product Specifications for the 600 Series Dye Module US Version Rev A 9 85 600 Series Dye Module 600 Series Dye Module Cooling Dye Cartridge Dye Module Elecirical Requiremenis Delivery Systems 600 Series Dye Moduie Dimensions Removabie operator replacabie self contained dye cartridge 0 75 liter minimum capacity Voltage 115 230VAC Cycles 50 60 Hz Rated Current 1A at 230V and 2A at 115V Single Phase Grounded input and hospital grade cord where required 200 micron core or greater designed for use in Photodynamic Therapy PDT Only those fibers approved by Laserscope may be used with the 600 Series Dye Module 11 inches 20 inches 18 Inches 39 inches 21 inches 21 inches Table 3 1 Product Specifications for the 600 Series Dye Module cont U S Version Rev A 9 95 Section 3 System Overview installation and Operatio System Installation This section provides a general guideline for the installa tion of the 600 Series Dye Module The KTP 532 Surgical Laser System used with the 600 Series Dye Module has specific electrical requirements Consult the KTP 532 Operator or Service Manual for a list of these requirements It is the customer s responsibility to satisfy these requirements prior to the installation of the system Failure to
75. l 6 Remove the protective shipping caps from the new dye carw dge Inspect the Dye Cartridge Seals 5 on the new cartridge for any sign of damage such as cuts scratches nicks If any visible defects are found the cartridge should not be used A defective carwidge should be replaced or sent back to Laserscope for repair or exchange 7 Turn on Mains Power Switch 8 Turn the Dye Module to the KEY ON position but do not press STANDBY ON 9 The power display on the Conwol Panel will display four dots and the system inter locks will be dis played 10 Locate the small black Counter Reset Button between U S Version Rev A 9 95 7 11 600 Series Dye Module 1l 12 ps 14 15 16 7 12 the two disconnect fittings in the laser Press once to signal the internal microprocessor that the dye car tridge has been replaced If the DYE CHANGE waming lamp was illuminated on the control panel it should now be extinguished Tum the laser to the KEY OFF position Open the vent cap on the new dye cartridge Insert the new dye cartridge into position Firmly press the new unit into place until the dye car tridge is fully seated Do not use excessive force to insert the cartridge The fit of the new cartridge should be verified by gently tugging on the cartridge after the new unit is in place The cartridge should remain solidly engaged No twisting or side play should be evident Close the control p
76. l power Power Validation Requirements In order to validate the power measurement system in the 600 Series Dye Module prior to use the system should always be calibrated using a power measurement standard traceable to NIST National Institute of Standards Technology The nature of Photodynamic Therapy requires that the fiberoptic delivery device radiate light uniformaly into large volumes A power meter that employs an integrating sphere for power measurement is required to properly validate the system A flat detector is inadequate and its use will result in erroneous calibration U S Version Rev A 9 95 6 7 600 Series Dye Module The general calibration procedure requires that the PDT fiber be connected to the Dye Module s PDT Delivery Device Port and the fiber tip inserted into the integrating sphere of the standard The reading from the NIST trace able standard is compared to the reading obrained by inserting the fiber tip into the calibration insert in the Calibration Sphere of the Dye Module The Dye Module must be in the FIBER CAL mode to activate the integrat ing sphere for power measurement The laser power reading should be within 15 of the stan dard measurement If it is not within this range the power measurement error is excessive and the unit should be cali brated The procedure to perform this calibration is described on the following pages Required Equipment The following equipment will be required
77. lved Cross Reference e See Section 5 Electronics for more information about the Fiber Interlock U S Version Rev A 9 95 Section 8 System Interlocks and Error Codes Code H17 Problem ROM test failure Cause During the start up self test the EPROM on the CPU Board malfunctions Troubleshooting 1 Replace CPU Board or replace EPROM U8 on the CPU Board Cross Reference e See Section 5 Electronics for information about the CPU Board and location of the EPROM US Version Rev A 9 95 8 27 600 Series Dye Module Code H18 Problem RAM test failure Cause During the start up self test the Dye Module fails the RAM test Troubleshooting 1 Replace the CPU Board or the Ram chip on the CPU Board Cross Reference e See Secon 5 Electronics for information about the CPU Board and the location of the Ram chip 8 28 U S Version Rev A 9 95 Section 8 System interlocks and Error Codes Code H19 Problem AIM Solenoid failure Cause The AIM shutter is either not opening or not closing as requested Troubleshooting 1 Visually check position of the shutter optical switches The shutter should be adjusted so that when open switch one is blocked and when closed switch two is blocked This is exactly the opposite of the TREAT Solenoid If it is out of adjustment loosen Solenoid mounting screws and move until position is correct 2 If p
78. n the LVPS refer to Figure 5 3 The voltage test points pot adjustment locations and mea surement specifications for each of the detector control circuits are listed under the Analog Input PCB description The detector zero and voltage values should be checked at the Analog PCB during each Preventive Maintenance Procedure for the Dye Module system U S Version Rev A 9 95 5 29 600 Series Dye Module 5 30 AC Voltage Configuration The 600 Series Dye Module can be configured to operate at either 115 VAC or 230 VAC The following procedure describes how to configure the system for operation at either power level Configuration for 115 VAC Operation Ja Check that the voltage select jumper on the Low Voltage Power Supply is in the 115 VAC position refer to Figure 5 3 The voltage select jumpers on the AC Power PCB should be configured as follows J2 to J3 and J5 to J6 refer to Figure 5 7 Make sure that the A C line input fuses are type 3AG 3 amp Laserscope Part Number 4310 0006 Configuration for 230 VAC Operation 1 Move the voltage select jumper on the Low Voltage Power Supply to the 230 VAC position refer to Figure 5 3 The voltage select jumpers on the AC Power PCB should be configured as follows J2 to JI and J5 to J4 refer to Figure 5 7 Make sure that the AC line input fuses are type 5 X 20mm 1 6 amp Laserscope Part Number 4310 0010 U S Version Rev A 9 95 Section 6
79. n to the Dye Module for service diagnostic and calibration purposes It is reserved for use by qualified Laserscope service personnel Remote Interlock Port 25 The Remote Interlock Port allows connection of a remote interlock cable to the 600 Series Dye Module If this cable is connected to the laser area entry door opening the door will cause the laser to return automatically to STANDBY ON and cause a Help Code to be displayed Cable Coil Brackets 26 Cable Coil Brackets allow for convenient coiling of the Fiberoptic Interface Cable for storage U S Version Rev A 9 95 Section 3 System Overview Installation and Operation System Connection Procedure The procedure outlined below should be followed when connecting the 600 Series Dye Module and the KTP 532 Surgical Laser System 1 Verify that the key switches of both the surgical laser and the 600 Series Dye Module are OFF 2 Verify that the circuit breaker of the surgical laser is OFF 3 Plug the KTP 532 Surgical Laser System into an appropriate power outlet voltage phase and current as recommended by the KTP 532 Surgical Laser System Operator Manual 4 Forreliable and efficient operation of the 600 Series Figure 3 4 Rear View 800 Series Dye Module US Version Rev A 9 95 3 25 600 Series Dye Module Dye Module in PDT procedures the External Water Cooling Module is required Connect cooling water hoses and turn water on
80. ng 1 Remove the dust cover from the Dye Module Resonator 2 Connect the footswitch to the surgical laser 3 Set TREATMENT SECONDS to 100 seconds Stepper Motor Attenuator will open close 100 steps when the Power Control buttons are pressed 4 Push up button eight times Note that the elapsed time is 800 seconds Pump Green Detector 0 25 Volts Watt i Set the surgical laser to deliver 30 16 watts uncali brated Note Older Dye Systems have a 5 voits watt on KTP detector If you areun sure please consult Laserscope s Technical Support Group U S Version Rev A 9 95 6 11 600 Series Dye Module 2 Put the surgical laser in READY mode and press the footswitch 3 Adjust the Pump green Detector gain potentiometer until the DVM reads 4 0 volts DC 16 watts or 30 watts at 7 5 volts at TP6 of the Analog Input PCB Refer to Doc 0106 7180 Pump Detector 0 25 Volts Watt 1 Set the surgical laser to deliver 16 watts uncalibrated 2 Put the surgical laser in READY mode and press the footswitch 3 Adjust the Pump Detector gain potentiometer until the DVM reads 4 0 volts DC 16 watts or 30 watts at 7 5 volts at TPI of the Analog Input PCB High Power Dye Module 1 Volt Watt 1 Defeat the FIBER Interlock with the Fiber Bypass Connector and place a power meter at the PDT Delivery Device Port 2 Position the External Power Meter at the PDT Delivery Device Port 3 Open both th
81. nnected Fiheroptic interface Cable i Control Cable gt ita Delivery System 7 J M i 1 Sud SI Connection to _ A Polar Sonic yl Water Cooiing Module Figure 2 3 Dye Module and Surgical Laser Connections U S Version Rev A 9 95 2 11 600 Series Dye Madule 1 Key Switch Melia Eee m 89 ee e je 09090 e LH RUNS A wera LASERSCUPE 4 A igi 7 4 _ Sin FIDE uU PDT Delivery Device Port 3 Jj y Y Power Meter Eeiquneyo 2 Figure 2 4 Features located on the Front of the Dye Module 2 12 U S Version Rev A 9 95 G6 6 Y 8g uOisJ8aA S f EL g lt a 35 al 8 42 43 E 14 e 0000 gt 15 16 1 18 19 20 Standby ON Am Treat Wavelength Power Watts Power Control Fiber Ca Mode Cal Mem Mode Dye Mode Pump Mode Trealment Seconds Display Elapsed Exposure Display Seconds Joules Buttons Reset Keys Interlock Fault Messages Oye Change amp Maintenance Warning Messages Figure 2 5 Contro Panel details and illuminating message screens Mayes Z uoisas 600 Series Dye Module ejnpoyy a G 8uj jo y9eQ al uo paje3oj senjge4 g z einbjy aperdaaay 91qu9 asepa ondoiaqi 92 Syeyoeg 1109 9199 9 npojy duj Jamod 103290u04 jeruajodinb3 000000000 ajgeg onuog 2 uod x9op i9ju ajoul9H G2 uod ZEZ SU
82. nt to the Dye Module If the KTP power is low check the KTP Surgical Laser System res onator powers Use an oscilloscope and fast photo diode to ascertain that the pulse width parameter on the pump laser is between 450 600 ns 550 600 ns for Low Power Modules If the pulse width cannot be set between these parameters the pump laser may need alignment See Surgical Laser Service Manual for laser alignment instruc tions U S Version Rev A 9 95 Section 6 Laser and Optics Connecting Cables Once it has been determined that the power from the pump laser is adequate connect the Dye Module to the laser with the Fiber Interface Pump Cable and the Connector Cable Disconnect the footswitch cable on the pump laser and attach the Connector Cable Visually inspect the cables for any damage and make sure the connection at the pump laser is secure Dye Cartridge Filter Change Using an IBM compatible computer See Preventive Maintenance Procedure in Section 9 for laptop connection and usage with the Dye Module System check the watt hours remaining in the life of the dye cartridge If needed replace the dye cartridge In some cases the dye filter will also require replacement particularly if dye contamination is suspected e g power was adequate one day and dropped dramatically the next A detailed description of the Dye Change Procedure for the Dye Cartridge is given in Section 7 Dye Circulation The Procedure for c
83. o see if the problem is corrected or check for voltage output at the JR1 PRI Connector on the Resonator PCB Tf the switches are not defective check the JR cable from the Output Coupler to the Resonator PCB 2R1 Sich cL soe pu Figure 5 8 Fiber Output Coupler 5 24 U S Version Rev A 9 95 Remote Interlock Location The Remote Interlock socket is installed on the back of the Dye Module Refer to Figure 3 5 Function The Remote Interlock is a safety feature required by the FDA on all lasers This interlock switch is usually connected to an entry door so that if the door is opened the Remote Interlock will be opened and lasing energy will cease until the door is closed The Remote Interlock is an option and is used at the cus tomer s discretion It is mounted with a shorting plug attached on the back of the Dye Module unit Problem If the Remote Interlock malfunctions check the PD3 Connector to the DC Power PCB Pump Interlock Location The Pump Interlock does not have a physical switch The Interlock is achieved using the photodiodes of the Aim and Pump Green Detectors to detect the pres ence of a KTP signal reaching the Dye Module The pres ence of this signal ensures that the fiberoptic and pump laser are correctly installed and functioning Function The Pump Interlock monitors the laser light entering from the KTP Surgical Pump Laser to the Dye Module and sends information to the microprocessor
84. o stop the ELAPSED EXPOSURE counter Aim 6 Pressing the AIM button activates a low power green aim ing beam 532 nm less than 5 0 mW The high power red weatment beam cannot be transmitted in the AIM mode A treatment time must be entered before the AIM beam can be activated AIM can be used at any time to discontinue the treatment beam and deliver only an aiming beam The ELAPSED EXPOSURE counter will pause until the TREAT button is pressed to resume treatment If the 600 Series Dye Module is left in the AIM mode longer than five minutes the Dye Module will return to the STANDBY ON mode 3 14 U S Version Rev A 9 95 G6 6 V eu ubisJSA S N GL Figure 3 3 Control Panel details and illuminating message screens 40 a d2 14 15 i 18 49 20 STANDBY DN AIM TREAT WAVELENGTH PDWER WATTS DISPLAY PDWER CONTROL ARROW KEYS FIBER CAL MODE SELECTOR CAL MEM MODE SELECTOR DYE MODE SELECTOR PUMP MODE SELECTOR TREATMENT SECONDS DISPLAY ELAPSED EXPOSURE DISPLAY SECONDS JOULES BUTTONS RESET KEYS INTERLOCK FAULT MESSAGES DYE CHANGE AND MAINTENANCE WARN ING MESSAGES uoiejadg pue uonej ejsuj MIJALIAQ uiajsAg E uONIeS 600 Series Dye Module Treat 7 TREAT opens the Dye Module shutter allowing the treat ment beam to be transmitted TREAT will only operate if the AIM mode has first been activated and treatment time has been set The
85. od will elapse during which the ELAPSED EXPOSURE counter will count down the time remaining Calibrating the PDT Treatment Fiber Output Power The procedure outlined below should be followed when pete a ium EE p eae t EHE S ia i i n Tio ut cire ql uH T i dini ti He 3 28 U S Version Rev A 9 95 Section 3 System Overview Installation and Operation calibrating the PDT Fiber Output Power This procedure should always be performed 1 prior to every use of a PDT fiber and 2 after disconnection and reconnection of a PDT fiber 1 The system will initialize in the DYE mode Using the UP and DOWN arrow keys set the power on the Dye Module to 1 watt to calibrate the treatment fiber ouput 2 If you have not already done so attach a PDT fiber to the Dye Module PDT Delivery Device Port 3 Press the FIBER CAL butto 4 Insert a sterile Cal Pod Calibration Pod Insert into the internal power meter until it stops See Figure 3 5 Carefully insert the distal end of the PDT fiber approx imately 5 5 inches 13 mm into the Cal Pod Insert Avoid touching the fiber tip to any surface except the inside of the Cal Pod Insert Doing so will contami e jd I jam wig PR mm See 3 Figore 3 5 Calibration Pad U S Verslon Rev A 9 95 3 29 600 Serres Dye Module H PDT fiber It will be used by the system to determine will enter the
86. ode Code Code Code Section Introduction U S Version Rev A 5 96 ADA e v 9 o Table of Contents Table of Contents List of Figures Figure 2 1 Label Sites on Dye Module 2 5 Figure 2 2 Contents of Labeis 26 Figure 2 3 System Interconnection Diagram 2 11 Figure 2 4 Control Panel Front Features 2 12 Figure 2 5 Control Panel Details s 2e 3 Figure 2 6 Dye Module Back Features 2 14 Figure 3 1 System Interconnection Diagram 3 1 Figure 3 2 Control Panel Front Features 3 13 Figure 3 3 Control Panel DetallS 3 15 Figure dot POE o A Ss 3 25 Figure 3 5 Calibration Pod 3 29 Figure 4 1 Dye Module Internals 4 2 Eigu re 4 2 4DyexGircul tonos al matre am or emt S 4 5 TA Beat Path cas A eri ee ce 4 11 Figure 4 4 Resonator and its Components 4 15 Figure 4 5 Fiber Alignment J dc ees ow eh memet 4 21 Figure 5 1 Electronics System 2 222 005 5 2 Figure 5 2 Wiring Diagram 0 cece eee 5 3 Figure 5 3 Low Voltage Power Supply 5 7 Figure 5 4 Analog Input PCB 0 eese 5 8 Figureis S AG Power PGB 1s o io ret 5 13 Figure S 6 DO POWerPOBD so Sk ee ce ene oh 5 17 Figure 5 7 Interconnect
87. ode irrespective of which power meter is used CAL MEM Mode Selector 12 CAL MEM displays an estimate of the PDT fiber power delivery during treatment CAL MEM is used to retain in memory the calibration factor between the 600 Series Dye Module output and the power output of the delivery device Once this value has been determined the laser can adjust delivered power out of the PDT fiber during treat ment using this memorized calibration factor In the CAL MEM mode the fiber power output is only a calculated value not an actual rea time reading The calibration factor is maintained as long as the same U S Version Rev A 9 95 3 19 600 Series Dye Modul PDT fiber is connected to the PDT Delivery Device Port When the fiber is disconnected the calibration factor is lost DYE Mode Selector 13 DYE mode displays the selected power of the 600 Series Dye Module which is delivered into the PDT fiber This value does not account for transmission losses of the spe cific delivery device PUMP Mode Selector 14 PUMP mode displays the required 532 nm power input of the surgical pump laser into the 600 Series Dye Module for proper operation The PUMP mode display is active for three seconds and then returns to the previously select ed mode Trealment Seconds Display 15 TREATMENT SECONDS displays the desired weatment duration in seconds At startup a 0 is displayed To set treatment time press th
88. oltages to the Control Panel PCB via the PD12 Connector and to the Mother PCB via the PD10 Connector The Mother Board then supplies voltages to and serves as the interconnect between the Analog Input PCB the Keyboard Display PCB and the CPU PCB If there is a power failure with all of these boards check for broken wires at the Card Cage at the point just before the U S Version Rev A 9 95 5 19 600 Series Dye Module wires connect to the individual EMI filters Control signals are sent between circuit boards via the fol lowing connectors The DC Power Board to the CPU Board via the PD4 to P2 Connection The Control Panel and Keyboard Display PCBs via the P2 to PK2 Connection The Resonator and Analog Input PCBs via the PR13 to J2 Connection See Figure 5 7 for the intercounect diagram of the PCB subassemblies Interlocks There are four interlocks in the 600 Series Dye Module These are e SYSTEM Interlock e FIBER Interlock e REMOTE Interlock PUMP Interlock 5 20 U S Version Rev A 9 95 Section 5 Electronics The general function of the interlocks is to safeguard vital aspects of the Dye Module and to signal when one of these vital areas has been defeated More detailed infor mation about the Interlocks can be found in Section 8 Interlocks and Error Codes If none of the Interlocks is 0106 9330 zis j 0106 7100 ASSY PCB ANALOG Figure 5 7
89. onal specifications The Procedure to configure the Dye Module to operate at 115 VAC or 230 VAC is described at the end of this section rh TI E B al tod Se We Saw Soe bed da He Al ls gt LL y SI AD een Figure 5 1 Dy e Module Electronics S ystem U S Version Rev A 9 95 Section 5 Electronics Subassemblies The major electronic subassemblies of the Model 600 Dye Module System consist of the following Low Voltage Power Supply LVPS The LVPS receives power from the AC Power Board and sup plies voltages to the DC Power PCB which in turn routes power to various system components Eight major PCBs Eight PCBs provide the cir cuitry and microprocessor support for the Dye Module Figure 5 2 Dye Module Wiring Diagram U S Version Rev A 9 95 5 3 600 Series Dye Module 8 Analog Input PCB CPU PCB Keyboard Display PCB Mother PCB Resonator PCB AC Power PCB DC Power PCB Control Panel PCB In addition there are individual circuit boards for each of the detectors the AIM and TREAT Shutters and the Integrated Calibration Sphere Two Dye Flow Pressure Switches High Pressure and Low Pressure Switches monitor the system for dye flow pressure problems Four Interlocks The Interlocks monitor vital areas of system functioning and send signals to the microprocessor on the CPU Board when the sys tem is subverted or not engaged Th
90. oprocessor Through the Mother Board a signal is then sent to the Analog Input PCB which registers the information and sends it to the AIM Solenoid located on the Resonator PCB A detector switch located on the shutter signals to the microprocessor that the requested position has been achieved To open the TREAT shutter and use the Treatment Beam press the TREAT button The same process will occur The TREAT shutter cannot be opened or the Treatment beam activated unless the AIM shutter has first been opened and the AIM beam activated If there are problems with one of the shutters try switch ing them they are identical to see if the problem travels with the shutter If it does replace that shutter If it does U S Version Rev A 9 95 4 19 600 Series Dye Module not the problem may lie with the T2 Transformer If the system detects problems with either of the shutters faults will be generated H19 AIM Solenoid Failure H20 TREAT Solenoid Failure Pump Detector and Aim Detector When the AIM beam leaves the Pump Turning Mirror it hits a Beam Splitter which splits a small amount of the Aim beam off to travel to the Pump Green Detector and the Aim Detector If these Detectors do not detect this beam a signal will be sent to the Analog Input PCB where it will be converted to a digital signal and relayed to the CPU microprocessor via the Mother Board A Pump Interlock H04 fault will be generated if no Aim
91. or wiring diagram of Attenuator Switch 8 11 600 Series Dye Modute Code H06 Problem Dye Life Warning Cause The dye requires changing It is 10 hours over the allow able limit or 6 months since the last dye change This fault can be overridden by pressing STANDBY allowing an additional 10 hours before system lockout Troubleshooting I Change the Dye Cartridge 2 Ifit is determined that the Dye Cartridge does not need to be changed there may be a problem with the Reset switch Check at the PD6 JD6 Connector on the DC Power Board black wire grnd pin 1 and white wire pin 2 Cross Reference e See Section 7 Dye Circulation for more informa Won about the Dye Cartridge and Dye Change pro cedure 8 12 U S Version Hev A 9 95 Section 8 System interlocks and Error Codes Code H07 Problem Dye Life Limit Cause The dye requires changing It is 20 hours over the allow able limit The HO7 fault can be overridden to allow use during the current procedure by pressing STANDBY However at the next startup cycle user will be prevented from using system Troubleshooting l Change the Dye Cartridge 2 If it is determined that the Dye Cartridge does not need to be changed there may be a problem with the Reset switch Check atthe PD6 JD6 Connector on the DC Power Board black wire grnd pin 1 and white wire pin 2 Cross Reference e See Section 7 Dye Circulation
92. osition is correct check shutter cable for broken wires and replace if necessary 3 If replacing the cable does not correct the problem replace the entire assembly Cross Reference e See Section 4 System Description for information about the Aim Solenoid Assembly U S Version Rev A 9 95 8 29 600 Series Dye Module Code H20 Problem TREAT Solenoid failure Cause The TREAT shutter for the optical switches is either not opening or not closing as requested Troubleshooting E Visually check position of the shutter optical switches The shutter should be adjusted so that when closed switch one is blocked and when open switch two is blocked This is exactly the opposite of the AIM Solenoid If it is out of adjustment loosen Solenoid mounting screws and move until position is correct If position is correct check shutter cable for broken wires and replace if necessary If replacing the cable does not correct the problem replace the entire assembly Cross Reference 8 30 e See Section 4 System Description for information about the TREAT Solenoid Assembly U S Version Rev A 9 95 Section 8 System interlocks and Error Codes Code H21 Problem Control Cable connection Hardware Initialization Failure Cause During the start up circuit check computer notes that the NMIURESET cable between the keyboard and the DC Power Board is not connected Troubleshooting 1 Che
93. plished through the following process Laser Beam Paths The KTP energy enters the Dye Module through the Fiber Input Mount and continues to the Pump Turning Mirror where it is split and separates into two paths e A path for the aim beam 1 of the laser energy e A path for the Treatment beam The paths of the AIM and Treatment beams are illustrated in Figure 4 3 4 10 U S Version Rev A 9 95 Section 4 Servicing Overview SS ur AIM BEAN 630 coupten N COMBINER WAVELENGTH VERIFICATION 630SURGICAL BEAM Figure 4 3 Beam Path A Path for the Aim Beam After the original beam has been split into an AIM beam and a TREATMENT beam the AIM beam is then split again at the Beam Splitter located next to the Pump Detector Most of the beam continues to the First AIM Beam Tower but a small amount of KTP light passes through to the AIM Detector and the PU MP green Detector These detectors make sure that the green light of the AIM beam is delivered before any further operation of the sys tem is permitted If these detectors do not receive the AIM beam light they will signal the Analog Input PCB which will convert the message to digital signals and relay them to the CPU Board via the Mother Board The result neither the AIM nor the Treatment beam will function U S Version Rev A 9 95 4 11 600 Serres Dye Module 4 12 The following are two major causes of AIM beam mal function
94. power Ifthe readings do not alter with the change in laser power check the following MW SUA UNT PENOY D4 fa r AN DEREDE PU UREN COEDS 9 fi aaa Jl 37 Ale ITA TOMES COMMITTEE esto ums uei O i hae naie NDUNI sin NEM V nicum xin 13 f Edme CONDUNSNZ LENE ART 4 7 TM some ate 141 STEPS MCR ampao A Mer wer vm e m E Y iem LENS ASSY S t i f i z qu REFLECTOR ner oam n BS x N a x 95 Moe oer ipi em 9 f Ami EAM TON A CCCII n fw OL ABET 0 terrere q X X Bio seve Enea X arnt Low cra assy o Cour Dt MIRADOR aiv 12 Venice MER asm n RESONATOR BASE PLATE Figure 5 9 Resonator 5 28 U S Version Rev A 9 95 Section 5 Electronics Determine whether the fault is coming from the Detector or the Analog Input PCB Swap the cable connecting the suspect detector to the Analog Input Board to see if the fault condition stays the same or travels to the new location Ifthe Analog Input PCB is suspect check the volt age test points on the Analog Input PCB to see if there is any output If there is not replace the Analog Input PCB e Ifthe voltage values are off first try adjusting them to bring output readings back to specification before replacing the Analog Input PCB Also check the VR 1 412v and VR 2 12v analog voltage regulators Refer to Figure 5 4 If necessary these can be adjusted by adjusting the 5 voltage pot o
95. ptics 4 14 U S Version Rev A 9 95 Section 4 ad eens Resonator Components The following pages describe the various components and assemblies of the Resonator and some of their potential problems Figure 4 4 illustrates the Resonator and its aap RIG WAR WS UI tX Came Peo ATTY 1 poke ae USA y OT 3 74 SETECTOR PUVP GREEN DONOR 17 JONM SEAM cues BOTE conv oa PM INPUT GUNS a559 2 fimm CONDEMTING LEME AREY 4 STEPPER NOTOR MTIM ANN AGI 5 A SAUTER apr 03 Ne a WM oie se cn pa SED DETECTOR AN MELLA RF CASO COLO 3 Vorrei wn a Ve IN i aov asse Ctr RESONATOR BASE PLATE Figure 4 4 Resonator and its Components components Dye Circulation and Electronics components are not included in this section For information about these components see Sections 5 and 7 respectively Fiber Input Mount Assembly The Fiber Input Mount Assembly physically connects the pump fiber which carries the KTP laser energy from the U S Version Rev A 9 95 4 15 600 Series Dye Module pump laser to the Dye Module The pump fiber is con nected to the Fiber Input Mount Assembly When the STANDBY ON button is pressed laser energy travels from the pump laser through the Pump Fiber and into the Fiber Input Mount Assembly Pump Turning Mirror The KTP beam thathas entered through the Fiber Input Assembly travels to the Pump Turning Mirror where it is split into an Aim beam and
96. r and pressing the DOWN arrow key decreases power The speed with which the power adjusts increases when an atrow key is pressed and held down This allows for rapid large power adjust ments Pressing both UP and DOWN arrow keys at startup in the KEY ON mode will initiate a lamp test command illumi nating every message and LED inthe Dye Module display FIBER CAL Mode Selector 11 FIBER CAL activates the internal power meter allowing the output power of the fiber to be measured and calibrat ed When the Dye Module is in the FIBER CAL display mode the ELAPSED EXPOSURE display will not advance FIBER CAL is used to measure the power deliv ered from the fiber This mode should not be selected U S Version Rev A 9 95 Section 3 System Overview Installation and Operation while the distal fiber Mp is anywhere but in the internal or an external power meter When FIBER CAL is selected and an external power meter is used the Dye Module will return to STANDBY after five seconds automatically or when STANDBY is selected When the internal power meter is used the Dye Module will remain in TREAT as long as the power meter detects light To return to STANDBY press the STANDBY but ton If the fiber is removed from the Calibration Pod Insert while the Dye Module is in the TREAT mode the Dye Module will immediately return to STANDBY as a safety precaution The ELAPSED EXPOSURE counter will not advance in the FIBER CAL m
97. r Program The surgical laser has the ability to be a very useful surgi cal instrument It can also be quite dangerous if used improperly The KTP 532 Surgical Laser System is classified as Class U S Version Rev A 9 95 Section 2 Safety IV by both the American National Standards Institute ANSI and the FDA s Center for Devices and Radiological Health Class IV means that the laser is capable of producing severe damage to both skin and eye tissues The 600 Series Dye Module is also classified as Class 1V However it does not generate laser energy independently of the pump laser so it does not produce laser light unless it is connected to the KTP laser system Electrical Hazards Laser systems are designed to be free from electrical dan ger to the user High voltages are fully contained within the equipment and systems are fused or protected with cir cuit breakers None the less no user should operate the system if they suspect any electrical problem If any pro tective housing is loose or missing the system should be unplugged and service personnel alerted Liquids should never be placed upon or hung above any laser system Ifa system is splashed with liquids by accident the user should unplug the system until it can be determined whether any liquid got inside the laser system If any electrical cord is damaged it should be replaced immedi ately and in a medical environment should be capable of meeting
98. rent wavelength in the range of 600 699 nm Special features of the Dye Module facilitate its use in a clinical environment These features include e Built in power meter for measuring the delivered energy at the fiber tip Exposure conxoller for controlling the treatment duration with a visual display of elapsed time or elapsed energy delivered through the fiber e Wavelength verification indicator The 600 Series Dye Module operation is continuously controlled and monitored by an internal microprocessor The operator is able to direct and change the operation of the laser by making selections on the Control Panel Control panel lights and LED readouts provide the opera tor with a clear indication of laser status at all times Controls include buttons for selecting the mode of opera tion treatment duration and power level U S Version Rev A 9 95 Section 3 System Overview Installation and Operation The Control Panel displays various interlock maintenance and HELP or H messages designed to provide the operator with feedback regarding the status of the laser These displays only illuminate when an interlock fault occurs or when a maintenance issue or system malfunction requires attention For more information see Section 8 System Interlocks and Error Codes The Dye Module is lightweight and portable and may be ordered with a custom designed cart and or a custom shelf for mounting on top of the KTP S32 Surgi
99. rol Panel and System Features 3 11 Ey Wet S85 ole O TE 3 11 Emergent DER e ori brc 3 11 PWV LO tech nacht AES AS 3 12 PDT Delivery Device Port 3 12 Stand YMA a VEM Cu whens we 1 LER 3 12 VA ceu Reh eu ae A rds 3 14 NOM or cer a a ev wae a ra tex 3 16 Na Velema 0L O ra 3 17 Power Watts Display 3 17 Power Control Arrow Keys 3 18 FIBER CAL Mode Selector 3 18 CAL MEM Mode Selector 3 19 DYE Mode Selodot ua s ten vr ee toile 3 20 BHMP Mogde amp electer 2 2 9 eren 3 20 Treatment Seconds Display 3 20 Elapsed Exposure Display 3 20 Seconds Joules Button 3 2 CRT Sn eh EA T ots asa Suara diis O a 3 22 2 U S Version Rev A 5 96 Table of Contents Interlock Fault Messages 3 22 Dye Change and Maint Warning Messgs 3 22 Conn eting the System es see de roe 3 23 Cable Conmevtfons 5 cmo 9 DO a 4 amp 3 3 23 Fiberoptic Interface Cable Receptacle 3 23 Coto eile 200 cto awe eee VW oa 3 23 Power Card Receptaele oa mti iSe diel ee 3 24 Service Connection RS 232 Port 3 24 Reinete Tnterloak Part agallas ovd 3 24 Cable Coil Braekets 2 ess 3 24 System Connection Procedure 3 25 System Operation i0 wisn 5 HOM RARO 3 27 Turning the Systems On sas J ras 2 Deua 3 27 Calibrating the PDT Treatment Fiber
100. ronics for information about the Pump Detector and Pump threshold 8 24 U S Version Rev A 9 95 Section 8 System Inierlocks and Error Codes Code H15 Problem Wavelength out of specification Cause The wavelength as detected by the Red Detector and Wavelength Verification Detector is not within 3 nm of the specified wavelength This fault can be overridden by pressing STANDBY Troubleshooting 1 Check the wavelength at the aim shutter using a Spectroscope If the wavelength is out of spec tune it by Birefringence Filter 2 If the wavelength is not out of specification the Red Detector may be malfunctioning Replace the Wave length Verification Unit making sure that itis being replaced with a unit of the appropriate wavelength Cross Reference e See Section 4 System Description and Section 6 Laser and Optics for more information about the Birefringence Filter and the Wavelength Verification Unit U S Version Rev A 9 95 8 25 600 Series Dye Module 8 26 Code H16 Problem Fiber Interlock fault Cause There has been an attempt to put the system into TREAT mode without first connecting a delivery fiber Troubleshooting 1 Connect a delivery fiber and check the connector to make sure it is not damaged 2 Ifa known good fiber is connected and the problem continues check for faulty Output Coupler Switches by replacing the Coupler to see if the problem is reso
101. s electronic mechanical photocopying recording or otherwise without written permission of Laserscope U S Version Rev A 9 95 Section 2 Safety __ Section e Safety Introduction Before attempting to service the 600 Series Dye Module first thoroughly read and understand this service manual This and the 600 Series Dye Module Operator Manual provide important information regarding the installation operation and service of the Dye Module Information on the installation operation and service of the laser system is provided in the KTP 5320 Surgical Laser System Operator and Service Manuals Hazards and Precautions The principal hazard associated with use of the 600 Series Dye Module is eye injury The cornea lens and ocular media of the eye are largely transparent to visible 380 780 nm and near infrared U S Version Rev A 9 95 600 Series Dye Module 780 1200 nm laser light This light passes through these regions of the eye and is readily absorbed by pigmented tissues the retina and choroid layers at the back of the eye Laser energy is converted to heat in these regions and if the energy is great enough will cause irreversible retinal damage The degree of damage is dependent on the laser beam power the focusing ability of the lens and the duration of exposure Precautions against eye injury should include protective eyewear for anyone in the near vicinity of the laser beam Prot
102. s Practice common sense when placing hands inside the cabinet and do not allow foreign objects to fall inside peste oe tes E Hi In 8 e T Me 1 ep ES 2H PEES ERLITT n Hi Inr E Hi ut 9 Eg a IIR Eye Injury Visible light and near infrared laser energy passes through the transparent components of the eye the cornea lens aqueous and vitreous humor and is focused on the retina This light can cause an accidental retinal burn the degree of damage of which will depend on the power of the beam the focus of the lens and the duration of the expo sure Precautions against eye injury should include always wearing the safety eyewear recommended U S Version Rev A 9 95 27 600 Series Bye Module Burns Irradiating tissue accidentally will result in a burn regard less of the wavelength Care and precision in aiming and firing the laser are of paramount importance Ignition of Flammable Materials Many kinds of material can be ignited by the laser beam Use of non flammable materials is recommended Electrical Electrical hazards with a laser are the same as with any electrical appliance Carefully plug the unit into the wall outlet Make sure the area is free of water and hands are dry Always disconnect the laser by grasping the plug and not the power cord Examine the electrical cord routinely and repair and or replace as needed Additional Hazards to Consider Components of a Safe Lase
103. s ON STANDBY Defeat the FIBER Interlock with the Fiber Bypass Connector and place the Calibration Sphere Assembly at the PDT Delivery Device Port Set the Dye Module power to 1 watt and press the FIBER CAL button Press the AIM button then press the TREAT button Adjust the gain pot on the Sphere Detector PCB until the display reads 1 watt Re install the Calibration Sphere Assembly Note Older dye laser systems have a 2 volts watt configuration on the red detectors f you are unsure on your system s configuration please consult 6 14 Laserscope s Technical Support Group U S Version Rev A 9 95 Section 7 Dye Circulation System Section 7 Dye Circulation System Introduction The 600 Series Dye Module Dye Circulation System per forms several functions It maintains the dye solvent at a constant tempera ture e it regulates the dye pressure within safe operating limits It provides a clean source of the dye medium The Dye Module Circulation System consists of the fol lowing main subassemblies e Reservoir Dye Cartridge Heat Exchanger and Fan Pump e Pressure interlocks e Filter Figure 7 1 shows the circulation subassembly interconnec tions It also illustrates the dye flow as it is pumped from the Reservoir travels through the Pump Heat Exchanger and Filter to the Dye Cell Assembly in the Resonator and then returns to the Dye Reservoir U S Version Rev A 9 96
104. s and features are described below Refer to Figures 3 2 3 3 and 3 4 for the location of each Key Switch 1 The Key Switch supplies electrical power to the Dye Module when turned clockwise The key switch activates the power supply microprocessor and all safety inter locks Interlock faults will be illuminated on the control panel only when they occur The POWER WATTS SEC ONDS display 1s illuminated when the key switch is acti vated but no value is displayed The key switch also turns the Dye Module off counter clockwise turn Emergency OFF 2 The Emergency OFF button is intended to be used in instances where immediate interruption of laser operation is desired Pressing this button interrupts all lasing and all U S Version Rev A 9 95 3 11 600 Series Dye Module electrical processes returning the Dye Module to the KEY ON status Power Meter 3 The Power Meter allows measurement of power output at the fiber tip when FIBER CAL mode is selected The power meter is designed using an integrating sphere to allow measurement of diffusing and forward illuminating PDT fibers The power meter also allows setting of the calibration factor when the CAL MEM selector is chosen PDT Delivery Device Port 4 PDT fibers are connected to the Dye Module via the PDT Delivery Device Port Always slide the black protective cover over the fiber port of the Dye Module when fibers are not connected Make sure that t
105. t the back of the unit and connected to an AC outlet If there is a general failure of the Dye Module electrical system first check that the AC line input fuses on the back of the Dye Module are working and that the system is configured properly for the fuses then check the power cord and the AC source When the power cord is plugged in and the circuit breaker switch is turned on the AC power source will supply power to the AC Power PCB Once the key switch is turned on the AC Power PCB routes AC power to the Low Voltage Power Supply The Low Voltage Power Supply converts the AC voltage to VDC and supplies the DC Power Board When the Standby On button is pressed the AC and DC Power Boards supply voltages to the following system components The Dye Pump runs on AC power from the AC Power Board e A transformer and bridge rectifier on the AC Power Board supply DC power directly to the Stepper Motor and Fan All other system components receive power from the DC Power Board US Version Rav A 9 95 5 1 500 Series Dye Module 5 2 An interconnect diagram of the Dye Module electronics system is illustrated in Figure 5 1 A wiring diagram is shown in Figure 5 2 AC Configuration The U S and Canadian Dye Module laser units require a 50 60 Hz single phase 115 230 VAC input which goes to the Low Voltage Power Supply For units outside of the U S and Canada the standards will vary according to nati
106. tenance call If the Dye Module output is less than 7 0 3 2 watts at the time of the Preventive Maintenance the circulation system will need to be flushed If after general alignment of the Resonator the power is still below 7 0 3 2 watts it can be assumed that the dye solution is contaminated The procedure for performing the system flush is included in Section 9 Preventive Maintenance U S Version Rev A 9 95 7 9 600 Serres Dye Module Changing The Dye Cartridge The procedure outlined on the following pages should be followed whenever the Dye Cartridge is changed Refer to Figure 7 4 for an illustration of the Dye Cartridge Replacement Figure 7 4 Dye Cartridge Replacement Dye Change Procedure To change the Dye Cartndge 1 Verify that the 600 Series Dye Module is in the KEY OFF position 2 Verify that the pump laser is OFF or in STANDBY 7 10 U S Version Rev A 9 95 Section 7 Oye Circulation System 3 Press the Control Panel Release Latch 1 and swing the control panel forward 4 Press the red Carwidge Removal Lever 2 located alongside the dye cartridge downward in a direction parallel to the surface of the dye cartridge and remove the old dye cartridge 3 Close the Top Vent Cap 4 on the old cartridge to prevent dye from lealaing during shipment 5 The used dye cartridge should be returned to Laserscope in the packaging provided with the new cartridge for proper disposa
107. the first and second train Al of the various optical components along the laser beam path must be pre cisely aligned in order to generate the greatest stable power for transmission to the delivery device If these components are not precisely aligned the unit will demon strate low power and will require an alignment procedure to achieve adequate power If less than 3 2 watts 4 4 watts in Service Mode is generated during the system ini tialization procedure an H12 fault will be generated The Alignment Procedure as well as other possible reasons for low power problems are described in Section 6 Laser and Optics U S Version Rev A 9 95 Sectron 4 Servicing Overview Dye Circulation The dye solution is stored in the Dye Cartridge or Reservoir Once the Dye Module is placed in STAND BY ON the Dye Pump will be activated and the dye in the reservoir will be constantly circulated through the pump and through the Dye Cell Assembly See Figure 4 2 for Dye Circulation process As the KTP laser energy from the pump laser wavels down the laser path it reaches the Dye Cell Assembly where it is absorbed by the constant circulation of organic dye being pumped through the dye cell These dye mole cules are fluorescent They can absorb light at a shorter AP A A A Roa CA aa TR d RADIATOR A OE X LA POC FLOW TUBE 8 50 LONG EE T N 87 Mr ES S 3 1 TEMPERATURE 3 gg RESONATOR POLY FLOWTUBE
108. these cov ers or modules will be considered unauthorized modifica tion or misuse of the instrument and will void Laserscope s warranty Laserscope will not be liable for problems arising from repairs made by unauthorized per sonnel In the United States the 600 Series Dye Module has been approved for investigational use in Photodynamic Therapy US Version Rev A 9 95 1 1 600 S eries Dye Module Uses of the Manual This manual is a comprehensive tool that serves as a refer ence or as a guide in troubleshooting the various sub sys tems of the 600 Series Dye Module Sections of this man ual identify and describe the major assemblies summarize their operation point out fault conditions discuss trou bleshooting steps and list requirememts for periodic main tenance The 600 Series Dye Module exists in several versions This manual is specifically designed for use with the World version Dye Module Where differences occur between the High and Low Power versions these are noted in the text For information about other versions of the Dye Module contact your Laserscope representative or local Distributor As product upgrades and revisions are made for increased safety higher performance and greater user convenience addendums will be made available to keep this manual up to date No part of this service manual may be reproduced stored in a retrieval system or transmitted in any form or by any mean
109. ting in high power for too long without pause The room in which the Dye Module is operating is not properly air conditioned It is also always possible that the problem could be due to a faulty switch See Section 7 Dye Circulation for the procedure on changing a High or Low Pressure Switch Fiber Interlock Location There are two Fiber Interlock switches and both must be sending the same signal to the microproces sor for the system to function The Fiber Interlock Switches are not immediately visible They are recessed within the Fiber Output Coupler See Figure 5 8 Function The Fiber Interlock monitors whether or not a delivery device has been attached and relays this informa tion to the microprocessor If there is an attempt to put the system in Aim or Treat mode when a delivery device has U S Version Rev A 9 95 5 23 600 Series Dye Module not been attached an Interlock fault will be generated Until the fault is cleared the system will not emit laser energy Problem The problem is usually that a delivery device fiber has not been connected to the Dye Module and there is an attempt to operate the system The usual solution is to connect a delivery device However if the fault signa continues even if a device is attached or if no fault is sig naled when a delivery device is not attached and the sys tem is made ACTIVE then one or both switches may be faulty Either replace the Fiber Output Coupler t
110. treatment POWER should also be set prior to selecting TREAT or the default value of 0 10 watts will be used An approximate three second delay prior to treatment beam emission will occur as required by U S 21 CFR 1040 10 The TREAT light will flash on and off during this delay The delay will be extended to as long as five seconds if the system requires additional time to complete internal power adjustments to reach the power setting selected The treatment beam is discontinued under the following circumstances e The ELAPSED EXPOSURE counter reaches the value set under TREATMENT SECONDS The AIM button is pressed e The STANDBY ON button is pressed The Emergency OFF button is pressed The key switch is tumed OFF Aninterlock fault is activated and a HELP message is displayed or a panel lamp illuminated U S Version Rev A 9 95 Section 3 System Overview installation and Operation Wavelength 8 The WAVELENGTH light indicates verification of the specified treatment wavelength It illuminates continuous ly when the 600 Series Dye Module output is within 3 nm of the specified wavelength If the wavelength indica tor light is flashing prior to or during treatment an H15 Error Code will be displayed This Error Code can be overridden by pressing STANDBY However the wave length should be checked by an appropriate wavelength verification device See Section 6 Laser and Optics for detailed instr
111. ts for the Detectors are located on the Analog Input PCB Voltage measurements and adjustments for the detector monitor circuits are made on this PCB See Figure 5 4 for adjustment locations TP1 TP9 are the measurement test points used when zero ing and adjusting voltages for the detector control circuits The voltage adjustments are made at the blue potentiome ters labeled POT1 POT9 Pots 3 7 and 10 are not used Pots 8 and 9 are reference level adjustments They deter mine the threshold at which the system detects the Aim and Treatment beams See Figure 5 4 for a schematic of the Analog Input PCB To check the voltage measurements an extender card Standard Bus Card PN 5400 0220 will be needed Make sure the analog ground AGND instead of the digi tal ground GND is used when taling the detector voltage measures at TPI TP9 U S Version Rev A 9 95 5 9 600 Series Dye Modute Voltage test points adjustment pots and specifications for each of the detector monitor circuits and the reference level adjustments are as follows Red Detector Test Point TP2 Adjustment POT2 Specification Low Power 1 V W e g 5 0 VDC at 5 watts High Power 2 V W e g 10 0 VDC at 5 watts Pump Detector Test Point TP1 Adjustment POTI Specification 0 25 V W e g 7 5 VDC at 30 watts AIM Detector Test Point TP7 Adjustment POT9 Specification Adjusted to maximum Pump Green Detector Test Po
112. uctions Power Watts Display 9 POWER WATTS displays any of the four possible power outputs of the combined laser system FIBER CAL CAL MEM DYE and PUMP It displays the selected power in watts To display any one of the desired power outputs the appropriate power parameter button should be pushed The power can then be adjusted in all modes except PUMP by pressing the UP and DOWN arrow keys The Dye Module must be in the FIBER CAL mode to dis play the total power emitted from the PDT fiber The fiber must be inserted into the internal power meter The POWER WATTS display window is also used to warn the operator of a possible system problem An error or Help Code associated with the system malfunction will appear in the POWER WATTS display window Help Codes are a series of alphanumeric codes e g H03 that assist the operator in diagnosing system errors or faults US Version Rev A 9 95 3 17 600 Series Dye Module See Section 8 System Interlocks and Error Codes for more information Power Control Arrow Keys 10 The Power Control Arrow Keys control power in 0 01 watt increments over the range of O 10 through 3 2 watts 7 0 watts for High Power Module These arrow keys can be used to make power adjustments in the FIBER CAL CAL MEM and DYE modes but they are not active in the PUMP mode Arrow keys may also be used to adjust power in the STANDBY ON AIM and TREAT modes Pressing the UP arrow key increases powe
113. which generates a fault if the power is not within the spec ified range U S Version Rev A 9 95 5 25 600 Series Dye Module 5 26 If the Pump Interlock fault is triggered during STAND BY ON the AIM and TREAT modes cannot be achieved If the Pump Interlock fault is triggered during AIM or TREAT the laser will automatically return to STAND BY ON Problem The Pump Interlock fault usually indicates that the Fiber Interface Cable attaching the Dye Module to the pump laser is not connected properly and the fault can usually be rectified by reconnecting the cable Detectors Locations The 600 Series Dye Module has six detectors whose general functions are to monitor aspects of the laser and signal when there is a problem These detectors include See Figure 5 9 for detector locations e Red Detector Pump Green Detector e Aim Detector e Pump Detector e Sphere Detector Fiber Detector U S Version Rev A 9 95 Section 5 Electronics Functions The following describes the functions of the various detectors U S Version Rev A 9 95 Red Detector The Red Detector monitors the wavelength of the pump laser surgical beam and sends this information to the microprocessor If the monitored wavelength is not within 3 nm of the wavelength setting a light is displayed Pump Green Detector The Pump Green Detector monitors the supplied KTP power from the pump laser and sends this in
114. xperienced with the microprocessor connection or software the fault is proba bly with the CPU PCB To check a suspect CPU PCB replace the Board and see if the problem disappears Mother PCB Location The Mother PCB is located at the base of the card cage The Keyboard Display CPU and Analog Input PCBs are all plugged into the Mother PCB Refer to Figure 5 4 ITE Solid State Relay Pump Sofid State Relay LVPS Figure 5 8 AC Power PCB US Version Rev A 9 95 5 13 600 Series Oye Modute Function The Mother PCB connects the Analog Keyboard and CPU PCBs and acts as the communicating link between the three The Mother Board also supplies these three boards with low voltages received from the DC Power PCB Problems Problems with the communication between the three boards plugged into the Mother Board could be caused by a faulty Mother PCB Power failure in the three boards could also be caused by a faulty Mother PCB Power failure of all four PCBs could be caused by breaks in the individual wires going to the EMI Filters to supply power to the card cage To check measure the voltages at the input side of the EMI Filters and then on the affected PCB To replace the Mother Board the card cage itself must be replaced Resonator PCB Location The Resonator PCB is located under and attached to the bottom of the Dye Module Resonator Baseplate Refer to Figure 4 1 for location To

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