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Endos DC Service Manual - at www.ImageWorksCorporation.com.

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2. D E if IA 213 ORif IA FB_IF 112 om 1g E su Ta Meu a O lepu vie gndiso E o 5 z 58603901 G TABELLA FUSIBILI G FUSES TABLE Codice Fl FP Code cavallotto Versione 230V murale wo IAT 2501 cee a 5367309 short circuit pariah 230V wall version 58613 cavallotto short circuit 3AT 250V 3AT 250V 50613069 Generator HF board A1 6 2541 2500 6 2581 2500 layout Code 58603901 Rev 9 Page 1 of 1 Rev 4 87 ENDOS DC CE SERVICE MANUAL DENTX Schematics and drawings
3. ih 2 3 4 a X1 CAVO TASTIERA X1 KEYBOARD CABLE TP2 GND H1 LED O B J Oe 5 O Do 00 QO O 1 mt E LOES F c OG ma pm O mT i A TP6 kV O AA TP5 mA SOS 5 Alla O OTHO O D X3 PORTA SERIALE x4 X3 SERIAL PORT F ENDOS DC Logic board A2 layout Rev 4 89 ENDOS DC CE SERVICE MANUAL DENTX Spare Parts 13 SPARE PARTS 1 TIMER ENDOS DC 2 EXTENSION ARM SCISSOR ARM 3 MOBILE STAND 4 TUBEHEAD 5 OPTION Rev 4 91 ENDOS DC CE DENTX SERVICE MANUAL Spare Parts 1 TIMER ENDOS DC Ref VSM code Description Note 1 6661301800 Frictioning mechanism assy 2 5861308600 Generator board 230V wall version 5861308700 Generator board 120V wall version 5861308800 Generator board 230V mobile version 5861308900 Generator board 120V mobile version 3 5860390300 CPU board 4 6261302400 Flat cable 5 6261302200 Keyboard connection cable 6261308100 15mt cable for remote connection of keyboard 6 4291415900 ON OFF switch 7 6261303000 X ray push button 8 6661303800
4. Curve tubehead cooling 80 60 E kJ 40 20 0 100 200 300 400 time min ENDOS DC CE 22 Rev 0 SERVICE MANUAL DENTX Technical features NES 4 3 Standard and regulations ENDOS DC equipment complies with the following regulations N 60601 1 IEC 601 1 N 60601 1 1 IEC 601 1 1 N 60601 1 2 IEC 601 1 2 N 60601 1 3 IEC 601 1 3 N 60601 2 28 IEC 601 2 7 N 60601 27 IEC 601 2 7 E E E E E E e CFR21 Subchapter J for version operating at rated line voltage 99 132 V C CE symbol certifies the compliance of ENDOS DC to 93 42 CEE legal directives Rev 0 23 ENDOS DC CE D NTX SERVICE MANUAL Technical features 4 4 Overall dimensions VISTA FRONTALE 320 38 130 5 1 8 662 1 13 16 1 2 26 635 935 1135 25 36 13 16 44 11 16 162 58 6 3 8 Figure 4 1 Wall version overall dimensions 120 4 3 4 IN zai N 2110 83 280 11 1 16 1140 44 7 8 CU ENDOS DC CE Figure 4 2 Mobile Stand version overall dimensions 24
5. 130 5 1 8 143 29 1 4 Rev 0 SERVICE MANUAL DENTX Pre installation 5 Rev 0 PRE INSTALLATION ENDOS DC does not ask for special pre installation works still it is necessary to grant an adequate grounding for EMC compatibility and safety Section of grounding cable must be at least equal of greater than the section of line cables It is advisable to use a grounding cable G V with section 2 5mm7 If cables are going to be positioned inside the wall it is better that ducts are already positioned taking into account where the device will be installed taking care that cables exit in correspondence of the hole on the lower right side of the wall plate The Manufacturer can assist technically in the pre installation phase but preparation works are a customer s responsibility 25 ENDOS DC CE D ENT SERVICE MANUAL Pre installation 5 1 Mounting methods NOTE This chapter is valid for Wall version The user does not need to assess the consistency of the wall for Stand version The installer is responsible for assessing the consistency of the wall The extraction load on each screw is 570 N 58kg for the wall version standard assembly 3 mounting screws 1084 N 110kg for the wall version single stud assembly 2 screws in line For each type of wall use the appropriate mounting method complying with the following specifications which guarantee a safety factor
6. Figure 6 10 44 Rev 0 SERVICE MANUAL Installation Rev 1 45 ENDOS DC CE DENTX SERVICE MANUAL m Installation 6 6 2 Wall Support Remote keyboard connection NOTE In this configuration the possibility of using the X ray button applied to the timer is not provided NOTE ris cable supplied in the kit code 6661308000 for the remote connection is 15 meters long ending with 6 pole telephone connectors The single keyboard takes up a space of 200 mm in diameter on the wall If the keyboard is positioned outside the room you must 1 ENDOS DC CE Unscrew the relative screws to remove the keyboard disc from the plastic timer cover remove the short connection cable between the logic card and the keyboard Remove the X ray button applied to the timer Insert the long cable into the relevant connector on the logic card This cable must come out of the back of the timer where a raceway has been inserted into the wall for threading this cable Apply the adhesive film supplied on the plastic timer cover from which the keyboard disc has been removed Use blocks to position and secure the keyboard bracket suggested height about 1200 mm from the floor in an area that is accessible to authorized personnel only in the immediate vicinity on the right of the connection cable exit Set the DIP SWITCH on the back of the keyboard disc in the following way DS1 1 OFF DS1 2 ON
7. 230 V 99 V Power consumption 50 VA continuous 50 VA continuous 0 65 kVA impulsive 0 7 kVA impulsive 230 V 120 V Max apparent line resistance 0 8 Q max Line voltage regulation fe lt 3 at99V Automatic selection 60 pre set times Time accuracy 5 or 2 ms Max exposure time 2s Electronics box dimension 345x195x100mm The unit can be operated with the line voltage 100 V 10 under the condition that line resistance is lower than 0 4 Q complies with IEC 601 1 Max line current absorption at 100 V 10 is 7 5 A ENDOS DC CE 16 Rev 0 SERVICE MANUAL DENTX Technical features mu Tubehead features VILLA SISTEMI MEDICALI Buccinasco MI Italia asw HVL Half Value Layer gt 1 5 mm Al eq Transformer insulation Oil bath Interval between exposures 15 times X ray time duty cycle 1 15 adaptive Focal spot 0 7 IEC 336 5 mA Minimum focus to skin distance 20 cm optional 30 cm X ray diameter 20cm focus 6 cm optional 35 x 45 mm Radiation leakage at 1 m lt 0 25 mGy h Technical factors for radiation leakage 65 kV 5mA 1s Duty cycle 1 15 X ray tube features Manufacturer CEI Bologna Italy Type OCX 70 G Inherent filtration 0 5 mm Al eq a 70 kV Maximum filament voltage 4 1 V Anode thermal capacity 6 kJ Anode cooling capacity max 90 W Rev 0 17 ENDOS DC CE DENTX SERVICE MANU
8. Check the value of resistor Fb kV see paragraph 7 1 Replace the tubehead Not desired emission found Replace generator board RX ON present Rev 5 73 ENDOS DC CE SERVICE MANUAL Troubleshooting Displayed ANOMALY type Corrective actions message RX ON fall before exposure Verify the Ground connection cables end shields tightening of the screws for the generator board filter for the generator board and for the metallic grid mounted on the generator board Repeat exposure if the error is repeated 1 Check continuity of power cable X6 X10 and filament signal X7 X11 2 Check welds on the tubehead pins and correct insertion conditions of connectors X10 X11 on the tubehead 3 Replace tubehead Display OFF Loss of communication Discharge on tubehead Fb kV in short with system between CPU and Display circuit turned ON 1 Check the flat cable connecting the CPU to the generator board and the cable connecting the CPU to the keyboard 2 Check pin 1 and 3 of X7 X11 are not in short circuit 3 Repeat exposure if the error is repeated replace tubehead Main switch Fuses F2 and or F3 blown Important discharge in the tubehead ON but the resistor R57 burnt 1 Check if there is a short circuit system is OFF mosfet V49 V50 V51 short between pin 1 and 3 or between pin 2 circuited and 3 or between pin 4 and 5 of X7 2 Check if there is a short circuit between pin 1 or pin 2 an
9. Figure 6 4 Rev 0 35 ENDOS DC CE DENTX SERVICE MANUAL _ Installation 6 4 2 Assembling the scissors arm DP arm NOTE fre help assembly ENDOS DC is shipped with the tubehead already mounted on the scissors arm it is recommended to let the tape wrapping the arm in place In case it is removed besides making more difficult the assembly it is possible that the installer is hurt or the arm damaged Check that the frictioning mechanism 1 assembled on the extension arm at the end where the DP arm is mounted has been loosened so that the arm can be inserted correctly without damaging the frictioning mechanism Insert the scissors arm pin into the extension arm keep the scissors arm tightened during this operation Power cable signal cable and grounding cable must be let out freely from the extension arm NOTE frou must keep the DP arm orthogonal to the extension arm in order to be able to insert the pin into the bush placed inside the extension arm ENDOS DC CE Figure 6 5 36 Rev 0 SERVICE MANUAL D gt Installation Remove the safety clamp and open the scissors arm a few times to locate the position where the cable is more recovered inside the arm itself typically this condition is reached when the scissors arm is fully extended Holding this position insert the power cable the signal cable and the grounding cable coming form the
10. Switch on the system and access the set up procedures chapter 8 proceed up to parameter P6 and insert the value reported on the tubehead and written down before Confirm it pressing the X ray button or key Set up the value of parameter P7 reported on the tubehead and written down before confirm it by pressing the X ray button or key Go out of set up procedure by switching off the system Report the new values in the New setting column of the table of programmable parameters at the end of chapter 8 Figure 10 1 78 Rev 4 SERVICE MANUAL DENTX Service actions requiring part replacements 10 2 Replacing the generator card NOTE Before accessing the power card disconnect the equipment from the line 1 Remove the plastic timer cover by loosening the two sealing screws on the bottom and lifting the cover from the bottom to the top let the top clamps out To make the operation easy disconnect all the connection cables between the wall support and cover 2 Remove the flexible cable connecting the logic card and the power card disconnecting it from the connector on the power card 3 Remove the metal cover plate on the power card unscrewing the four fixing screws 4 Disconnect connectors X6 and X7 from the card leaving the cables in the grooves 5 Locate the fixing screws on the power card on the metal support and loosen them Remove the card itself 6 Insert the new card and
11. Anatomic selection key Large patient Normal patient Thin patient Large patient selection LED Normal patient selection LED Small patient selection LED Automatic tooth selection key Automatic Bite wing selection LED Upper molars automatic selection LED Lower molars automatic selection LED Pre molars automatic selection LED Incisor canine automatic selection LED 15 16 17 18 19 20 21 22 23 24 Film type selection key Type 1 film selection key Type 2 film selection key Digit radiovideography selection LED Customisable selection LED Custom 5 mA anodic current selection LED 4 mA anodic current selection LED Emission underway warning LED Ready for X rays warning LED to indicate that you can the emission procedure by pressing the appropriate button 3 digit exposure time display Long cone inserted warning LED X rays key ENDOS DC CE SERVICE MANUAL DENTX Troubleshooting pu 9 TROUBLESHOOTING WARNING The system must be switched off before performing integrity checks on fuses and components System F1 F2 F3 F4 230V wall version Short circuit 3AT 250V 2AF H 500V 3AF 250V 120V wall version Short circuit 6 25AT 250V 2AF H 500V 3AF 250V 230V stand version 3AT 250V 3AT 250V 2AF H 500V 3AF 250V 120V stand version 6 25AT 250V 6 25AT 250V 2AF H 500V 3AF 250V e Symptom Keyboard not working with display off light ignition sw
12. Insert the cable coming from the timer into the relevant connector on the back of the disc hook the keyboard to the support checking its stability 46 Rev 0 SERVICE MANUAL DENTX Installation NN 6 7 Power up sequence At start up the timer automatically checks all the internal hardware and in particular e Display all segments light for 2 seconds e LED they all light for 2 seconds e CHECKSUM check of the storage program and display of the words CHS if the check result is negative or in the event of non initialized memory e Buzzer check rings e Check of all buttons and X ray buttons in particular no button must be pressed If any buttons are pressed one of the LEDs corresponding to this key will light up and an error message will appear e Display of software version ex 1 01 NOTE During the first start up the volatile memory may not be programmed and therefore the CHS message will appear In this case press the X ray button switch the system OFF and ON again and restart the procedure The CHS message must not be displayed any more If this happens again replace the logic card CPU and proceed to the set up sequence Rev 0 47 ENDOS DC CE DENTX SERVICE MANUAL e Checks Calibration and Adjustment 7 CHECKS CALIBRATIONS AND ADJUSTMENTS The device is calibrated in the factory during final testing carried out at the manufacturers site Some adjustments for example the frict
13. technology generating a continuous and steady exposure Moreover the emission of soft X rays is so small that it ensures that emission parameters kVp and mA are constant throughout exposure time The control microprocessor ensures that exposure times remain constant and that they can be repeated exposure voltage and exposure times depending on the patient s size and the selected tooth can be selected simply by pressing a key The HF tubehead is much smaller thanks to the back positioning of the X ray tube the length is only 27 cm while the focus skin distance remain at the standard 20 cm Because the tubehead is so light only 4 5 Kg the arm is remarkably easy to handle 11 ENDOS DC CE DENTX SERVICE MANUAL Description 3 3 Configurations 3 3 1 Standard configuration ENDOS DC is manufactured in standard configuration 9461000013 code composed of the parts defined in the following picture Figure 3 1 Tubehead Scissors arm Extension arm Timer with high frequency generator a BO N me X ray button ENDOS DC CE 12 Rev 0 SERVICE MANUAL DENTX Description 3 3 2 Mobile stand configuration ENDOS DC can be assembled on a mobile stand this configuration gives greater flexibility of use NOTE O me mobile stand version must be requested when ordering The conversion from wall version to mobile stand version is not provided Figure 3 2 Tubehead Sci
14. 69 ENDOS DC CE DENTX SERVICE MANUAL e Troubleshooting 9 1 3 Errors during exposure Possible anomalies during exposure always interrupt the exposure itself Whether there is an acoustic signal or not depends on the time the fault occurred and on the success of the X ray interruption procedure NOTE IF ONE OF THE ERROR MESSAGES LISTED HERE BELOW SHOWS UP BEFORE IMPLEMENTING THE DESCRIBED CORRECTIVE ACTIONS CHECK CAREFULLY THE PROPER GROUNDING AND THAT GROUNDING SHIELDS ARE POSITIONED INSIDE THEIR LODGING AND PROPERLY TIGHTENED SEE Figure 6 9 IN ADDITION CHECK THAT CONNECTORS X5 X6 X7 ON THE GENERATOR BOARD AND X2 ON THE CPU BOARD ARE PROPERLY POSITIONED AND MAINLY THAT WIRES OF THE CABLES X6 AND X 7 ARE WELL SECURED AND THE TERMINALS ARE CORRECTLY INSERTED Displayed ANOMALY type Corrective actions message ENDOS DC CE 70 Rev 5 SERVICE MANUAL Troubleshooting Rev 5 Breakage in the filament circuit Check parameters P06 and PO7 Check status of LED H3 red on the generator board if it is ON check fuse F4 and after check if connector X7 is properly inserted if OFF disconnect X7 checking that the LED turns ON if it does not replace first the generator board and then the CPU Check integrity of flat cable and if it is well inserted in connectors X5 generator board and X2 CPU board Check electrical continuity between pin 4 and 5 of connector X7 if gt 2Q chec
15. CE 66 Rev 4 SERVICE MANUAL DENTX Troubleshooting pu 9 1 1 Fatal errors during start up These signals DO NOT allow any examination to be performed Displayed ANOMALY type Corrective actions message C H 0 Checksum error of If present at the first start up of the memories equipment after replacing EEPROM press EEPROM EPROM a key different from X ray key On the contrary if present during normal working it shows a problem replace EEPROM if not enough replace CPU card C H 4 Writing error of memory Replace EEPROM if not enough replace configuration CPU card EEPROM EPROM C H2 Checksum error of program Replace D4 Micro controller if not memory enough replace CPU card C H9 CPU Reset Check that jumper JP1 on the CPU board is disconnected At the following switch ON verify the configuration parameters P6 and P7 X ray button pressed at Check button or push button panel where start up a remote version is present and if necessary replace button push button panel A key pressed at start up Check keyboard and if necessary replace different from X ray keyboard button Note the pressed button is indicated by the LED flashing nearest to the button itself More keys pressed at start Check keyboard and if necessary replace up keyboard Note pressed buttons can be identified by pressing all keys in turn the wrong ones do not emit any acoustic signal When replacing CPU you mus
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17. box and screw the relevant support taking care to position the flat part toward downward e mounting on the wall use the screw provided with the support to fix the support itself to the wall in the requested position Rev 0 33 ENDOS DC CE DENTX SERVICE MANUAL m Installation 6 4 Assembling the arms 6 4 1 Assembling the extension arm 1 Insert the extension arm into the arm support block which is an integral part of the wall support plate NOTE You must keep the arm orthogonal to the plate to be able to insert the shaft into the bush placed inside the support 2 Check that the arm is level using a bubble level if it is not level it is better to release the mounting screws on the wall plate and make the necessary adjustments 3 The horizontal check must be performed in the three orthogonal positions arm parallel to the wall on the right on the left and perpendicular to the wall itself 4 At the end of the above operations assemble the extension arm frictioning mechanism block 1 this frictioning mechanism code 6161301800 is supplied separately 5 Assemble the arm rotation stop screw 2 in the hole provided on the shaft this screw is supplied with the frictioning mechanism NOTE The purpose of the frictioning mechanism and the rotation stop pin is to prevent the extension arm from becoming detached ENDOS DC CE 34 Rev 0 SERVICE MANUAL DENTX Installation a
18. fix it Insert connectors X6 and X7 8 Proceed with assembling the metal plate connect the flexible cable between logic card and power card 9 Connect all the connection cables between the wall support and plastic cover close the timer again Rev 4 79 ENDOS DC CE DNA TX SERVICE MANUAL Service actions requiring part replacements 10 3 Replacing the logic card NOTE Before accessing the logic card disconnect the equipment from the line NOTE Configuration data parameters P6 and P7 must be recovered These can be read directly from the machine set up chapter 8 if it is possible to access it otherwise they must be read on the tubehead label under the plastic covers or on the table at the end of chapter 8 if you are sure they have been updated during previous interventions 10 4 ENDOS DC CE Remove the plastic timer cover by loosening the two sealing screws on the bottom and lifting the cover from the bottom to the top let the clamps go out To make the operation easy disconnect all the connection cables between the wall support and cover Remove the flexible cable connecting the logic card to the power card disconnecting it from the connector on the logic card Remove the fixing screws on the logic card and replace it with the new one Connect all the connection cables between the wall support and plastic cover close the timer again Switch the system on and enter the set up
19. is the K parameter which makes a correction by increasing or decreasing the exposure times so that the accuracy requirements of the system can be met more closely Value expressed in milliseconds with an absolute number for example a parameter 0 means no correction while 02 means a two millisecond increase and 03 means a 3 millisecond decrease Default value O NOTE This parameter must not be modified from the factory configuration P1 0 Film type This parameter make it possible to choose the specific exposure tables between films with different sensitivities the value can select exposure times according to the following table Parameter Film selection 1 Standard Film selection 2 Fast Digital D E CCD CCD Phosphorus Phosphorus CCD D d0 p O D R ojola o slala E Phosphorus ENDOS DC CE 60 Rev 4 SERVICE MANUAL D A EE Set up P11 P12 P13 Rev 4 Cone setting up When you use a 30 cm limiter cone the exposure times in the preset tables must be multiplied by a 2 factor to get a correct dose The default parameter is 0 which corresponds to the standard cone DFF Film focus distance 20cm a value different from 1 multiplies the values by the above mentioned coefficient The change from standard cone to long cone times is made by using a combination of the Film Selection 13 Increase 2 fro
20. must be set in the system using the set up procedure 1 Write down the value of the two parameters P6 and P7 reported on the new tubehead 2 Remove the identification label 1 on the back of the plastic covers of the tubehead to access the fixing screws 2 of the covers themselves Loosen the screws remove the front fixing ring 3 of the extension cone and open the two plastic covers 3 Loosen the two fixing screws on the metallic cover 4 on the back of the tubehead which holds the two connectors to access them 4 Disconnect the two connectors and disconnect the ground cable 5 5 Holding the tubehead loosen the two fixing screws 6 of the tubehead itself to the support Remove the tubehead Rev 4 77 ENDOS DC CE DNA TX SERVICE MANUAL Service actions requiring part replacements 10 11 12 13 ENDOS DC CE Take the new tubehead and assemble it on the support Fasten it with the removed screws at point 5 and clamp them Connect the two connectors coming from the arm with the corresponding connectors on the tubehead Take care to observe the direction of the connectors which are suitably polarized Connect the ground cable Assemble fixing connectors cover positioning the cables as before see point 3 Reassemble the plastic covers and secure them using the provided screws and the front fixing ring Put the new identification label on the back of the plastic covers
21. signaling lamps must not be over 24V Take maximum attention during the calibrating phase when the system is powered ON some components are at 400Vdc and not insulated Presence of the power supply is made evident by the H1 LED green see its position on the layout of board Al P N 58603901 Interventions on the circuitry must be done only after having disconnected the line voltage and after all LEDs in the generator board are completely turned off It is advisable to wait at least 1 minute after having disconnected the system from mains 7 ENDOS DC CE DENTX SERVICE MANUAL Description 3 DESCRIPTION 3 1 Identification labels ENDOS DC CE 8 Rev 1 SERVICE MANUAL Description DENT la ENDOS DC label D NTX ENDOS DC X MIND Line 120 V Duty oycle 1 16 Manufactured MMMMYYYY 7 2 A 99 V 60 Hz Max exposure time 2s X RAY CONTROL S N 25XXYYYY Model 8361300100 Manufactured by VILLA SISTEMI THIS PRODUCT COMPLIES WITH FDA RADIATION MEDICALI S p A PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J 20090 Buccinasco 0051 IN EFFECT AT DATE OF MANUFACTURE MILANO ITALY 2 WARNING label COMPLIES WITH DHHS PERFORMANCE STANDARD 21 CFR SUBCHAPTER J WARNING THIS X RAY UNIT MAY BE DANGEROUS TO THE PATIENT AND OPERATOR UNLESS SAFE EXPOSURE FACTORS AND OPERATING INSTRUCTIONS ARE OBSERVED ELECTRICAL SHOCK HAZARD DO NOT REMOVE PANELS RISK OF EXPLOSION DO NOT USE IN
22. the extension arm or the scissors arm in an anomalous way for example by leaning on them Rev 0 3 ENDOS DC CE DENTX SERVICE MANUAL Safety aspects 2 2 Protection from X rays Although dosage given by modern X ray equipment is low on average during the execution of the exposure the operator must take all precautions to protect the patient and himself in compliance with the regulations in force WARNING Protection from X ray radiation is regulated by law The equipment must be used by specialized personnel only a b c d e ENDOS DC CE The film or the digital sensor must be put into the patient s mouth manually or using the appropriate supports If possible it must be held by the patient himself During X ray exposure the operator must not come into contact with the tubehead or the collimator cone During exposure the operator must be at a certain distance from the X ray source at least 2 meters in the opposite direction to X ray beam During exposure the operator and the patient are the only people allowed in the room The lead aprons should be used to reduce the undesirable effect of secondary radiation on the patient 4 Rev 0 SERVICE MANUAL DENTX Safety aspects NES 2 3 Environmental risks and disposal Some parts of the equipment contain material and fluids which must be disposed of in special areas designated by the local health authorities at the en
23. 0 Buccinasco IN EFFECT AT DATE OF MANUFACTURE MILANO ITALY ENDOS DC CE DENTX SERVICE MANUAL e Description 3 2 3 2 1 Functions ENDOS DC ENDOS DC is able to produce excellent quality X rays thanks to parameter repeatability and has very short exposure times and a very small focal spot ENDOS DC X ray equipment is compatible with VDEORADIOGRAPHY equipment systems Digital image acquisition equipment and incorporates the latest digital X ray intraoral technology If you do not possess VIDEORADIOGRAPHY equipment you are recommended to use high speed films or EKTASPEED films Kodak in order to limit the dosage absorbed by the patient The working mode can be selected using the control keyboard with the possibility of choosing between two films of a different speed sensibility the digital sensor or a mode that can be customized by the user called Custom ENDOS DC equipment can use the optional 30cm collimator cone to be ordered separately with 6161405000 code the change from standard cone 20 cm to 30 cm cone or vice versa is possible using a special key the long cone inserted selection is displayed by the relevant LED 23 Figure 8 1 start up The change from standard cone 20 cm to long cone 30 cm is made by touching keys Film speed 13 Figure 8 1 and Increase 1 Figure 8 1 at the same time and it is indicated by the relevant LED 23 In this selection pre set exposure times in anatom
24. 4 Wooden uprights self threading screws 8x70 A 4 8 provided with the installation kit Full or concrete bricks screw anchors provided with the installation kit in cast iron M8 or chemical screws WURTH optional Hollow bricks chemical screws optional A counter plate must be used with walls with a lower resistance see paragraph 6 5 3 WARNING w The Manufacturer is not responsible for any installations that do not comply with the specifications stated above ENDOS DC CE 26 Rev 0 SERVICE MANUAL DENTX Pre installation NN 5 2 Electric pre setting e Single phase supply ground 230 V 120 V e Frequency 50 Hz 60 Hz e Absorbed current during emission 27A 5 2A e Apparent line resistance 0 8 Q max 0 4 Q max NOTE d The device is intended for permanent installation It is forbidden to connect the system by a plug in a wall socket for safety reasons Mobile version has to be requested on order and it is not possible to transform wall mounted version into a mobile version in field NOTE Ei circuit breaker with overcurrent protection must be connected to the intraoral X ray equipment with the following features Nominal current 6A Differential sensitivity 0 03A Section of line cables must be not lower than 1 5 mm Grounding of the system must meet requirement of the laws a bad grounding can be dangerous for the operator and can generate malfunctioning of th
25. AL e Technical features Environmental conditions Operating temperature range 10 C 40 C Operating relative humidity range 30 75 Temperature range for transport and 20 C 70 C storage Max relative humidity for transport and lt 95 non condensing storage Min atmospheric pressure for storage and transport Weight of equipment and detachable parts Gross weight including packing configuration 80 cm extension arm 3 5 kg 30 cm extension arm Tubehead 4 5 kg NOTE ABOUT COOLING TIME e ENDOS DC equipment is designed to guarantee the best efficiency of use for the operator this feature also includes a low tube cooling time in order to limit the waiting time between one exposure and the next even when the equipment is being used intensively In order to guarantee the useful life of the equipment cooling time varies according to the conditions in which the equipment is used and it can assume even 1 30 values 30 s waiting every 1 s exposure or 1 45 45 s waiting every 1 s exposure The calculation algorithm preset in the equipment takes into account the usage conditions and applies the correct value for the pause between two consecutive exposures Considering all this you are advised not to switch the ENDOS DC off immediately after an exposure ENDOS DC CE 18 Rev 2 SERVICE MANUAL DENTX Technical features mu 4 1 Method of measuring technical factors NOTE dine
26. DENT ENDOS DC E cos SATUS 4 gt A A Service Manual Release 22 May 2006 Rev 5 SERVICE MANUAL DENTX Revision history n Revision history Rev Date Page s Modification description 0 16 04 03 Document approval 1 14 11 03 i ii 8 9 15 18 19 ETL certification 35 41 45 46 from Addition of X MIND identification on main 48 to 52 54 from label 57 to 59 from 62 New SW version addition of parameter P15 to 96 Update of procedure to assemble scissors arm Update of Troubleshooting chapter Update of schematic and drawings Update of Spare Parts list Ref RDM 5642 5644 5651 5678 5690 5693 5702 2 29 03 04 9 15 16 26 Notify body change for CE mark Rated current absorption value update Ref RDM 5781 RDM 5789 3 23 09 04 54 Correction of a wrong board reference in parameters P0O6 e PO7 set up Ref RDM 5911 4 28 09 05 i ii 9 10 52 Troubleshooting chapter improvement from 54 to 57 Modified the arms labels from 59 to 100 Update of schematics and drawings Ref RDM 5931 6052 5 22 05 06 from 64 to 70 Troubleshooting chapter improvement Ref RDM 6398 Rev 5 ENDOS DC CE SERVICE MANUAL Revision history ENDOS DC CE THIS PAGE IS INTENTIONALLY LEFT BLANK Rev 1 SERVICE MANUAL Contents Contents 1 INTRODUCTION 1 1 Icons in the manual cece ce cence ee ee n
27. LE LI Fl cavallotto circuit Versione 230V murale 2 wall version allotto short circuit Versione 120V murale 3AT 250 6 25AT Versione 120 ENDOS DC General connection diagram Code 39619001 Rev 1 Page 1 of 1 86 ENDOS DC CE SERVICE MANUAL DENTX Schematics and drawings
28. NUAL Spare Parts ENDOS DC CE 97 Rev 4 DENTX SERVICE MANUAL Spare Parts 4 TUBEHEAD Ref VSM code Description Note 1 6661408400 Tubehead cover kit without label 2 5460461803 Front fixing ring 3 5160469903 Tubehead lateral cover 4 6661408300 Tubehead ENDOS DC CE 98 Rev 4 SERVICE MANUAL Rev 4 ENDOS DC CE DENTX SERVICE MANUAL Spare Parts 5 OPTION Ref VSM code Description Note 1 6160462003 Rectangular beam limiting device 45x35mm 2 6161405000 Extension cone for SFD 300mm 3 6661308000 Remote Timer kit 4 6660132000 Chemical screws kit 5 5661307900 Counterplate 6 6661209900 Allen wrenches kit ENDOS DC CE 100 Rev 4 SERVICE MANUAL Spare Parts Rev 4 THIS PAGE IS INTENTIONALLY LEFT BLANK 101 ENDOS DC CE SERVICE MANUAL Spare Parts ENDOS DC CE THIS PAGE IS INTENTIONALLY LEFT BLANK 102 Rev 4 SERVICE MANUAL DENTX Fixing templates 14 FIXING TEMPLATES The system is equipped with a set of templates composed of the following elements Code Description 39619100 Fixing template Rev 4 103 ENDOS DC CE SERVICE MANUAL Fixing templates ENDOS DC CE THIS PAGE IS INTENTIONALLY LEFT BLANK 104 Rev 4 Cod 6961900903_Rev 5 0051 Dent X Corporation USA 250 Clearbrook Road Elmsford New
29. PRESENCE OF FLAMMABLE ANESTHETICS FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE DANGER RISQUE D ESPLOSION NE PAS EMPLOYER EN PRESENCE D ANESTHESIQUES INFLAMMABLES POUR ASSURER UNE PROTECTION CONTINUE CONTRE LE RISQUE D INCENDIE UTILISER UNIQUEMENT UN FUSIBLE DE RECHANGE DE MEME TYPE ET DE MEMES CARACTERISTIQUES NOMINALES 4 5 DP arm Extension arm label label Model 8161200702 Model 8161200X02 S N 13XXYYYY S N 10XXYYYY Rev 4 1b ETL certification label ETL LISTED E CONFORMS TO eX Hus UL STD 2601 1 2001443 CERTIFIED TO GAN CSA STD 622 2 NO 601 1 3 Tubehead label DIAGNOSTIC SOURCE ASSEMBLY Model ENDOS DC Type 8461400002 S N 35XXYY YY Output max 65kVp 5mA 2 sec m 0 7 IEC 336 Total filtration 22 mm Al X ray beam lt 6 om at FFD 20 cm X RAY TUBE Model OCX 70 G Manufacturer CEI Bologna Italy SINE arrasar Manufactured THIS PRODUCT COMPLIES WITH FDA RADIATION PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J IN EFFECT AT DATE OF MANUFACTURE Manufactured by VILLA SISTEMI MEDICALI for DENT X 6 Collimator 30 cm optional label BEAM LIMITING DEVICE Model 61614050 at FFD 30 cm Diameter lt 6cm S N AOXXYY YY Manufactured MMMM YYYY Manufactured by VILLA SISTEMI THIS PRODUCT COMPLIES WITH FDA RADIATION MEDICALI S p A PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J 2009
30. X ray button holder 9 5461302800 Timer keypad 10 6661302900 Keyboard cpl 11 5461302000 Front cover 12 5461305800 Timer front cover F2 2300974100 Fuse 3A T 6 3x32 for 230V wall Mounted on version Power PCB 2300975800 Fuse 6 25A T 6 3x32 for 120V wall version Fl 2300974100 Fuse 3A T 6 3x32 for 230V mobile Mounted on version Power PCB 2300975800 Fuse 6 25A T 6 3x32 for 120V mobile version ENDOS DC CE 92 Rev 4 SERVICE MANUAL Spare Parts ENDOS DC CE 93 Rev 4 DENTX SERVICE MANUAL Spare Parts 2 EXTENSION ARM SCISSORS ARM Ref VSM code Description Note 1 8161200702 Scissors arm complete of tubehead support 2 8161200302 Extension arm 30 cm 8161200502 Extension arm 60 cm 8161200402 Extension arm 80 cm 3 6661210000 Scissors arm joint covers kit DX SX 4 6661210400 Extension arm end covers kit 5 6661210200 Extension arm frictioning mechanism 6 5160249500 Busher Y 28mm ENDOS DC CE 94 Rev 4 SERVICE MANUAL Spare Parts ENDOS DC CE 95 Rev 4 DENTX SERVICE MANUAL Spare Parts 3 MOBILE STAND Ref VSM code Description Note 1 8160120000 Mobile stand complete 2 4890310400 Wheel with brake 80x24 4890307000 Wheel 80x24 3 6661305600 Mobile stand spacer 4 5261304700 Timer fixing plate ENDOS DC CE 96 Rev 4 SERVICE MA
31. and ON again if it is still present replace generator board Note it may show up just for a short interruption of mains Check tubehead connections X7 X1 1 Check continuity of filament signal cable pin 3 of X7 X11 Check that on TP6 of the CPU board there is a voltage lt 0 5V if present replace the CPU board if not replace the generator board Check that on TP5 of the CPU board there is voltage lt 0 1V if present replace the CPU board if not replace the generator board Check connection of the flat cable between CPU board and generator board if the error persists replace the generator board Disconnect X11 tubehead side and check that there is not a short circuit between pin 4 and 5 of X7 replace the CPU board Even if the message disappears make an exposure and if other messages are displayed replace the tubehead Connector X7 board side or X11 tubehead side disconnected 1 Check connections to the tubehead check the value of resistor FbkV see paragraph 7 1 Check electrical continuity between pin 3 and pin 1 of the filament signal cable X7 and corresponding pins of X11 Check integrity of flat cable and if it is well inserted in connectors X5 generator board and X2 CPU board 4 Replace tubehead If the anomaly is not repeatable try to move the scissors arm while checking continuity the cable may be broken for wear but still have contact in some positions Rev 5
32. appropriate use and warnings relating to dangers connected with X ray generators The Manufacturer does not accept any responsibility for e use of ENDOS DC equipment for purposes other than those for which it has been designed e damages to the equipment the operator the patient caused both by wrong installations and maintenance that do not follow the procedures contained in the User s and Service Manuals provided with the equipment and by wrong operating techniques e mechanical and or electrical changes made during and after installation that differ from the ones in the present manual Only personnel authorized by the Manufacturer may carry out technical work on the equipment Only authorized personnel can remove the tubehead from its support and or gain access to live parts ENDOS DC CE 2 Rev 0 SERVICE MANUAL DENTX Safety aspects mu 2 1 Warnings The equipment must be used according to the procedures in this manual and never for different purposes from the ones for which it has been designed Before carrying out any maintenance disconnect the equipment from the power line using the circuit breaker provided ENDOS DC is an electro medical device and for this reason can be used only under the supervision of highly qualified medical staff in possession of all the necessary knowledge about X ray protection The user is responsible for fulfilling all the legal requirements connected with the possessio
33. art UP eessissisiicorrseri i corscncstsenessseeccesssecereeseosees 67 9 1 2 Messages in Idle status Ready for exposure ooooccccoccnnnccnnnnccnniconnnine 68 9 1 3 Errors d ring EXPOSUTE siissicssetineccecssccaverensesegedessontseradeenneccenteccabtenenees 70 9 1 4 Errors that do not prevent further exposureS ooccccccccnnnccnnincnnninnnoninnnn 75 9 1 5 Timer with display off or not Working oocccooccccnccnnncnnnnnncnnnncnnninnnnninnnn 76 10 SERVICE ACTIONS REQUIRING PART REPLACEMENTS 77 10 1 Replacement of the tubehead ee cee cee ee cece cece ee ee ee eeeeneaeaeaeenenes 77 10 2 Replacing the generator Card eee cece cece ee ne cece eee aeeeeeneeaeaeeneages 79 10 3 Replacing the logic Card ees eee cece cece ne neeaeeeeae ance eeneeaeaeeeages 80 10 4 Replacing the keyboard sosser es oeni r E E E E A 80 10 5 Replacing the SCiSsors AlM ooococcnocccocononncnnononncnconannnncnnnononcnnonnncncnnnanes 81 10 5 1 Replacing the scissors arm with wall Timer standard configuration 81 10 5 2 Replacing the scissors arm with Timer with mobile stand 82 11 MAINTENANCE 83 12 SCHEMATICS AND DRAWINGS 84 13 SPARE PARTS 91 14 FIXING TEMPLATES 103 This publication can only be reproduced transmitted transcribed or translated into any human or computer language with the written consent of the Manufacturer Rev 4 iii ENDOS DC CE DENTX SERVICE MANUAL Contents This Manual is the English tra
34. ative one on TP2 GND select a 1 s exposure time and read the value measured by DVM considering 1VDC 2 mA you must measure a 2 5 V DC 125 mV 2 375 2 625 V value for 5 mA anode current while for 4 mA you must have 2 V DC 100 mV 1 9 2 1 V Rev 1 19 ENDOS DC CE DENTX SERVICE MANUAL e Technical features e Exposure time measurement Use a memory oscilloscope connecting the hot point of the sound to TP6 kV and the mass to TP2 GND Set the oscilloscope to wave form storage with the trigger on the positive side Select the required exposure time and make an exposure The exposure time is defined as the interval between the moment when kV value goes above 75 of the stationary value and the fall under this value exposure time accuracy must be 5 or 2 ms if bigger When using a non invasive tool such as a kV time meter there may be a bigger error depending on the measurement tool used ENDOS DC CE 20 Rev 1 SERVICE MANUAL DENTX Technical features NES 4 2 Curves tube features OCX 70 G Emission feature ES ESE EE CI MY Pe mA anodic current 1 5 2 0 2 5 3 0 3 5 filament voltage V Load anodic current 0 01 0 1 1 10 sec 100 exposure time Rev 0 21 ENDOS DC CE DENTX SERVICE MANUAL E Technical features Curve anode cooling 150 W 120 W
35. best way to measure technical factors is by taking a direct measurement of radiological parameters This is also called the invasive method This method requires access to live parts so it can be performed by personnel authorized by the Manufacturer only The measurement method using non invasive tools for instance the kV t meter is acceptable even though it usually gives a less accurate result In fact measuring the high tension tube value using non invasive tools is strictly correlated to the method chosen by the manufacturer of the tool himself generally this method is less accurate than the direct method and it may also require two consecutive exposures Similarly anode current measurement using the indirect method is affected by systematic errors as it is very often based on the current time product measurement dividing the measurement by the time measured by this method The logic card CPU has 3 test points TP6 kV TP5 mA and TP2 GND to which the tool used for the measurement is connected typically a digital multimeter with an entry resistance of more than 10 MQ or memory oscilloscope e High tension value to the tube Connect the positive prod on TP6 kV and the negative one on TP2 GND select a 1 s exposure time and read the value measured by DVM considering 1VDC 20 kV you must measure a 3 25 V DC 160 mV 3 09 3 41 value e Anode current value Connect the positive prod on TP5 mA and the neg
36. bling the arms cece eee eee ee ce neee ents eee 6 4 1 Assembling the extension arm occocccncccnccnccnoncnnnens 6 4 2 Assembling the scissors arm DP arm 6 4 3 Assembling the stand arms set ee 6 5 Installation of the optional parts c cece 6 5 1 External signaling devices oocccoocccnncccnniccnnnicnnonins 6 5 2 Installation of chemical screws cee 6 553 Counterplateninni ondaa is Rev 4 i ENDOS DC CE SERVICE MANUAL Contents ENDOS DC CE ii Rev 4 SERVICE MANUAL DENTX Contents pu 6 0 Electrical connect micras ic E leia iii 42 6 6 1 Electrical connection for standard Versions oocccooocnnoccnnnncnnnuninnnaninonine 43 6 6 2 Wall Support Remote keyboard connection ooccccccccncnccnnnncnnnncnnnncnnon 46 0 1 Power p SEQUENCE ira 47 7 CHECKS CALIBRATIONS AND ADJUSTMENTS 48 7 1 Radiological parameters determinations occ cece cece ee ence eee es 49 2 ATMS adjustment wesccsscasvassacwsrsecesduaasasasasaveesa vatuaatdemuvsvenenleeeddeiwebianend 51 7 2 1 Adjusting the extension arm support frictioning mechanism 52 7 2 2 Adjusting the extension arm frictioning mechanism 0 0 53 7 2 3 Adjusting the balance Scissors AlM oocccooccnnnnccnnnccnnncnnnnnccnnnninnnacinoncnnnn 54 8 SET UP 56 9 TROUBLESHOOTING 65 9 1 Error messages on the display cece cece cece iieii 66 9 1 1 Fatal errors during st
37. ctor X7 if gt 2O check that connector X11 tubehead is properly inserted and that disconnecting the connectors there is continuity between the group of yellow red wires and the group of brown green grey wires of connectors X7 X11 lt 1Q If continuity is proven replace the tubehead if not replace the scissors arm if lt 20 check that voltage between TP7 and TP2 GND of the CPU board is 1 6 1 8V and between TP9 and TP2 GND is about 1 2 1 4V If voltage on TP7 is not correct replace the generator board if voltage on TP9 is not correct replace the CPU and repeat the check then replace the generator board if necessary ENDOS DC CE 68 Rev 5 SERVICE MANUAL Troubleshooting message Back up timer triggered Intervention safety overvoltage PFC OVPFC Intervention safety undervoltage PFC UVPFC Note present also every time you switch off the equipment E17 kV feedback beyond upper limit Note different thresholds if in IDLE or during exposure mA feedback over upper limit Note different thresholds if in IDLE or during exposure Filament current overload Signal of kV overvoltage Check integrity of the flat cable between the CPU board and the generator board if the message persists replace the generator board Switch OFF and ON again if it is still present replace generator board Note it may show up just for a short interruption of mains Switch OFF
38. d of the equipment s life cycle In particular the equipment contains the following materials and or components e Tubehead external packages in non biodegradable plastic dielectric oil lead copper brass aluminum resin tungsten beryllium e Power supply and remote control external packages in non biodegradable plastic iron copper plastic reinforced by fiber glass e Tubehead extension iron aluminum copper NOTE e The Manufacturer and the distributor do not accept any responsibility for the disposal of equipment or parts discarded by the user and the related costs Rev 0 5 ENDOS DC CE DENTX SERVICE MANUAL OS Safety aspects 2 4 Symbols in use The following symbols are used in this manual and on ENDOS DC Protection ground Functional ground OFF equipment not connected to the electric line ON equipment connected to the electric line Permission key to exposure the permitted exposure status is displayed by switching on the corresponding green symbol Focal spot according IEC 336 X ray emission ENDOS DC CE 6 Rev 0 SERVICE MANUAL DENTX Safety aspects mu 2 5 Rev 0 Attention points during installation Be very careful in mounting properly the wall plate and the scissors arm Follow carefully instruction given in the present manual Cut the safety tape against unwanted opening of the scissors arm only at the end of installation Voltage of additional
39. d the shield of X6 3 Ifthe problem is caused by the cables it cannot be easily corrected so the entire system has to be replaced otherways replace the tubehead and the generator board Ifthe anomaly is not repeatable try to move the scissors arm while checking continuity the cable may be broken for wear but still have contact in some positions WARNING w When an error signal appears and the buzzer sounds always switch the system off In any case when the back up timer is triggered it always interrupts X ray emission ENDOS DC CE 74 Rev 5 SERVICE MANUAL DENTX Troubleshooting pu 9 1 4 Errors that do not prevent further exposures Situations which do not directly effect the safety of the operator patient or the system are considered as re settable anomalies The situation which has caused the alert condition is always signaled by the green flashing LED Ready for X ray and the display of the relevant error message which in these cases has the Axx syntax WARNING w This set of error messages is reset pressing anyone of the selection keys on the keyboard patient size film or tooth The keyboard and the display will show the last selection done message X ray button already pressed Release X ray button reset error when pressing one of the and repeat procedure if the error selection keys with the system in persists replace the X ray button IDLE ON status Release X ray bu
40. e 4 with the four screws 7 Figure 6 2 5 Assemble the timer support plate 8 to the stand column fixing it with the two screws 9 WARNING w The timer must be fixed to the support plate after assembling the scissors arm see paragraph 6 4 3 Rev 0 31 ENDOS DC CE DENTX SERVICE MANUAL i Installation 6 Remove the plastic timer cover 10 by loosening the two sealing screws 12 placed on the lower part and lifting the cover from the bottom to the top to let the upper clamps out To make the operation easier disconnect all cables connecting the timer and the plastic cover 7 Remove the metallic plate 11 covering the power board acting on the 4 screws NOTE rie metallic plate holds the logic board CPU which is already connected to power board take care to avoid damaging the flexible cable connecting the two boards 8 Fix the timer 13 onto the support plate 8 with the two screws 14 taking care to thread the supply cable and the cables coming from the scissors arm inside the hollow one 15 Check that the upper level is level using a bubble level Figure 6 3 ENDOS DC CE 32 Rev 0 SERVICE MANUAL DENTX Installation aan 6 3 X ray button The X ray button support code 6161303800 are in the box with an installation kit that gives two options e mounting on the timer side remove the small plug placed on the right hand wall of the timer
41. e while if PO5 1 the anodic current is 4 mA Variation by Increase 2 and Decrease 1 P06 Display and set up of the filament current check parameter minimum value P07 Display and set up of the filament current check parameter maximum value These two parameters make it possible to display and set up specific parameters allowing to match the power card to the tubehead in use NOTE These two parameters can be changed only if the tubehead has been replaced or if the CPU card has been replaced so that the new one must be configured to work with the tubehead in the machine The values of these parameters are given on the label affixed to the internal metal part of the tubehead and on a sheet shipped with the unit Rev 0 59 ENDOS DC CE DENTX SERVICE MANUAL Set up P08 Exposure counter display It enables the display of the exposures made by displaying the number of thousands first and then after pressing the Increase 2 key the number of units 1 999 The counter can be reset to zero by pressing the Patient Selection 3 and Tooth Selection 7 keys together the operation requires confirmation by pressing the X ray key NOTE The exposure meter can also be displayed without being able to modify it during normal running conditions outside the set up program by pressing the Tooth selection 7 and Increase 2 key simultaneously P09 Exposure times correction value It
42. e device NOTE danos DC can be connected to signaling devices outside the installation room please make reference to chapter 6 5 1 It is also possible to mount the system with remote keyboard in this case it is necessary to use a cable with phone connector provided by the Manufacturer Rev 0 27 ENDOS DC CE DENTX SERVICE MANUAL m Installation 6 INSTALLATION ENDOS DC intraoral X ray equipment is shipped pre assembled in sub assys Mechanical assembly work consists solely in assembling these units All the mechanical components are therefore adjusted before delivery not only is there no need to carry out any adjustment on these parts but it would also cause the equipment to malfunction any adjustment must be carried out by authorized personnel only ENDOS DC CE 28 Rev 0 SERVICE MANUAL DENTX Installation 6 1 Timer set up standard configuration 1 To be sure that the equipment is in the correct position we recommend you put the provided template 4 code 39619100 in the requested position in this way identifying the requested wall mounting position Considering the overall dimensions of the equipment put the top part of the template at 1450 mm 57 from the floor w WARNING The plate must be placed so that the entry hole of the supply cables corresponds with the point from which these cables exit the wall The installer will assess the consistency of the wall taking into cons
43. e scissors arm balance e check that the X ray beam is centered e check proper functioning of X ray exposure LED and exposure buzzer The Service Engineer during preventive maintenance besides the checks listed above will verify also e correct adjustment of the rotation friction mechanism of the extension arm and of the scissors arm e Correct balancing of scissors arm making proper adjustment when necessary NOTE Interventions carried out by the Service Engineer must be noted in the Maintenance Record page at the end of the User Manual with a short description of the actions done Rev 4 83 ENDOS DC CE DENTX SERVICE MANUAL Schematics and drawings 12 SCHEMATICS AND DRAWINGS 1 ENDOS DC General connection diagram 2 Generator HF board A1 layout 3 Logic board A2 layout ENDOS DC CE 84 Rev 4 SERVICE MANUAL Schematics and drawings THIS PAGE IS INTENTIONALLY LEFT BLANK Rev 4 85 ENDOS DC CE SERVICE MANUAL Schematics and drawings 5 6 7 8 9 10 11 gt A gt gt Uscita Serial TABELLA FUSES FUSIBI TAB
44. e system OFF and the tubehead connected measure the resistance between Pin2 and Pin 3 of X7 connector on the generator board the resistance value must be 1000 2 ohm if the value is not correct replace the tubehead 3 If the check of point 2 is correct check test points TP8 Rifla and TP9 RifIf on CPU board selecting anodic current at 5 mA check that voltage at TP8 and TP9 with respect to TP2 are 2 5V 2 if out of range replace the CPU board if correct replace the tubehead or the HF generator board e Exposure time measurement Use a memory oscilloscope connecting the hot point of the sound to TP6 kV and the mass to TP2 GND Set the oscilloscope to wave form storage with the trigger on the positive side Select the required exposure time and make an exposure The exposure time is defined as the interval between the moment when Kv value goes above 75 of the stationary value and the fall under this value exposure time accuracy must be 5 or 2 ms if bigger If the measured value is out of range replace the CPU board When using a non invasive tool such as a kV time meter there may be a bigger error depending on the measurement tool used ENDOS DC CE 50 Rev 1 SERVICE MANUAL DENTX Checks Calibration and Adjustment NES 7 2 Arms adjustment The arms may need adjusting in the following cases e the movement of the extension arm combined with the scissors arm is not considered to be ergonomic by the end
45. ector X7 Check that pin 2 and pin 3 of connector X7 are not short circuited Check the value of resistor Fb mA see paragraph 7 1 Repeat an exposure if the message is confirmed replace the tubehead Replace generator board Check integrity of the flat cable connecting the CPU to the generator board Switch OFF and ON again if it is still present or repeated after an exposure replace generator board Switch OFF and ON again if still present replace generator board Note it may show up just for a short interruption of mains Check tubehead connection and the electrical continuity between pins 1 e 2 of connector X6 lt 2Q Switch OFF and ON again if still present replace generator board Note it may show up just for a short interruption of mains Check continuity of filament signal cable pin 1 and pin 3 of X7 X11 Check value of resistor Fb kV see paragraph 7 1 High voltage at tubehead Repeat exposure if the error is repeated replace generator board Repeat exposure if the error is repeated 1 Check parameters PO1 PO6 and PO7 2 Check value of resistor Fb mA see paragraph 7 1 Anodic current value 3 Replace generator board 4 Check welds on the tubehead pins and correct insertion and conditions of connectors X10 X11 on the tubehead 5 Ifthe message remains replace the tubehead 72 Rev 5 SERVICE MANUAL Troubleshooting mA feedback over upper limit Note different thre
46. ending on construction differences and by the intrinsic nature of the RX tube of the individual device 61 ENDOS DC CE D N TX SERVICE MANUAL Se tup P15 Display error logbook Selecting parameter P14 during the set up sequence and pressing the Increase 2 or Decrease 1 keys the words E01 is displayed on the display Use the increase or decrease keys again to scroll through the list of possible errors To display the number of times a specific error has been stored press the X ray key 24 while this error is selected The display will start flashing displaying the thousands first of all and then number of units of times the message has been recorded Every number is displayed for 0 5 sec And the thousands units sequence is repeated four times at the end the display goes back to error selection Example Ifthe error has been stored 2543 times the display will display in sequence 002 543 002 543 002 543 002 543 Exx If no key is pressed within 10 sec during the display of error code Exx the display will go back P14 Receptor selection time set This parameter shows the time in second during which the receptor key 13 has to be held pressed to activate the selection P15 can have the following values O default 1 2 or 3 seconds When P15 0 a simple pressure of receptor selection key 13 changes the selected receptor when P15 lt 0 the selection is activated only holding the key 13
47. ic selection are automatically increased by a multiplication factor equal to 2 Vice versa the change from long cone to standard cone is achieved by touching keys Film speed 13 and Decrease 1 at the same time WARNING ENDOS DC equipment does not automatically detect the presence of the type of cone it is the operator s responsibility to check that the luminous sign does actually indicate the true situation ENDOS DC CE 10 Rev 4 SERVICE MANUAL D gt Ye Description 3 2 2 Rev 0 High frequency generator or HF ENDOS DC is composed of a generator a tubehead including a collimator a CPU card or logic which controls the equipment functions and a keyboard used to select exposure parameters The standard configuration provides a keyboard directly connected to the CPU card while an optional configuration allows the keyboard to be set up in remote control in this case instead of the X ray button you can use the key provided directly on the keyboard itself The HF generator driven by remote control linked with the tubehead uses microcontroller technology know how to get very good quality X rays and at the same time reducing the X ray dose to the patient Conventional equipment generally uses the intrinsic skill of the RX generator tube to conduct electric current in only one way In this way you get the generation of a train of RX pulses Vice versa ENDOS DC apparatus uses the constant tension
48. ideration the screw extraction load specified in paragraph 5 1 2 Mark the mounting points and make the respective holes with a diameter corresponding to the chosen screws 3 Remove the plastic timer cover 1 loosening the two sealing screws 3 placed on the lower part and lifting the cover from the bottom to the top to let the upper clamps out The make the operation easier disconnect all wires between wall plate and cover 4 Remove metallic plate 2 covering the power board acting on the 4 screws NOTE ri metallic plate holds the logic board CPU which is already connected to power board take care to avoid damaging the flexible cable connecting the two boards Rev 0 29 ENDOS DC CE D SERVICE MANUAL Installation 5 Fix the timer to the wall using the relevant screws 5 Figure 6 1 ENDOS DC CE 30 Rev 0 SERVICE MANUAL DENTX Installation ma 6 2 Assembling the mobile stand and timer installation 1 Cross the two base tubes 1 into the provided cut fixing them together with the screw 2 and relevant nut 3 Do not tighten the screw completely 2 Position the base plate 4 and fix it with the four screws 5 If necessary reposition the two base tubes 1 slightly in order to align the relevant holes on the plate 3 Lock the nut 3 in order to block the base tubes 1 permanently 4 Assemble the stand column 6 on the base plat
49. ing screws 5 Remove the two fixing clamps on the screening braiding Disconnect cables X6 and X7 coming from the tubehead from the correspondent connectors Disconnect the ground cable yellow green cable coming from the tubehead from the ground terminal of the wall support 7 Remove the timer from the support plate 8 Remove the support plate from the stand column Remove the scissors arm 10 Assemble the new arm as described in paragraph 6 4 3 11 Fix the support plate and the timer as described in paragraph 6 2 point 5 and following 12 Connect the cables as described in paragraph 6 6 1 13 Assemble the tubehead again as described in paragraph 10 1 from points 6 to 10 82 Rev 4 MANUALE DI SERVIZIO Schemi elettrici e disegni MEDICALI 11 MAINTENANCE Like all electrical equipment this unit requires not only correct use but also maintenance and checks at regular intervals This precaution will guarantee that the equipment works safely and efficiently Periodic maintenance consists in checks carried out directly by the operator and or by the Technical Service The operator can carry out the following checks himself e check the labels are intact and well attached e check there are no oil marks on the tubehead e check the remote control cable is not broken or scratched e check there are no external damages to the equipment which could make it unsafe in terms of protection from radiation e check th
50. ing the overall dimensions of the equipment put the top part of the template at 1450 mm 57 from the floor Mark the mounting points and make holes right through the wall at the marked points Remove the plastic timer cover 1 by loosening the two sealing screws 3 on the bottom part and lifting the cover from the bottom to the top to let the top clamps out To make the operation easier disconnect all cables connecting the timer and the plastic cover Remove the metallic plate 2 covering the power board acting on the 4 screws NOTE rie same metal plate acts as a support to the CPU board which is already connected to the generator board take care to avoid damaging the flat cable between the two boards 5 ENDOS DC CE Put some threading pins 6 not provided through the wall and fix the counterplate 5 code 5661307900 onto the back of the wall after positioning the timer 40 Rev 0 SERVICE MANUAL DENTX Installation a Figure 6 8 Rev 0 41 ENDOS DC CE DENTX SERVICE MANUAL m Installation 6 6 Electrical connection After carrying out the mechanical assembly you can go ahead with the electrical connection The ENDOS DC system must be connected to a plant equipped with a grounding system in compliance with the regulations in force in the country of installation NOTE 9 line electric plant must also be fitted with a residual current breaker with overcur
51. ion mechanisms of the scissors arm and extension arm may need to be done once the installation has been completed and are described in the installation chapter 6 ENDOS DC CE 48 Rev 0 SERVICE MANUAL DENTX Checks Calibration and Adjustment NES 7 1 Radiological parameters determinations NOTE dine best way to measure technical factors is by taking a direct measurement of radiological parameters This is also called the invasive method This method requires access to live parts so it can be performed by personnel authorized by the Manufacturer only The measurement method using non invasive tools for instance the kV t meter is acceptable even though it usually gives a less accurate result In fact measuring the high tension tube value using non invasive tools is strictly correlated to the method chosen by the manufacturer of the tool himself generally this method is less accurate than the direct method and it may also require two consecutive exposures Similarly anode current measurement using the indirect method is affected by systematic errors as it is very often based on the current time product measurement dividing the measurement by the time measured by this method The logic card CPU has 3 test points TP6 kV TP5 mA and TP2 GND to which the tool used for the measurement is connected typically a digital multimeter with an entry resistance of more than 10 MQ or memory oscilloscope e High tens
52. ion value to the tube Connect the positive prod on TP6 kV and the negative one on TP2 GND select a 1 s exposure time and read the value measured by DVM considering 1VDC 20 kV you must measure a 3 25 V DC 160 mV 3 09 3 41 value If the measured value is outside the range proceed as follows 1 With the system OFF and the tubehead connected measure the resistance between Pin1l and Pin 3 of X7 connector on the generator board the resistance value must be 14200 2 ohm if the value is correct check all connections and possibly replace the HF board or the tubehead 2 If the value is not correct disconnect the tubehead measure the resistance on the connector on the tubehead side which must be 15000 2 ohm if not correct replace the tubehead 3 Ifthe value is correct replace the HF generator Rev 1 49 ENDOS DC CE DENTX SERVICE MANUAL e Checks Calibration and Adjustment e Anode current value Connect the positive prod on TP5 mA and the negative one on TP2 GND select a 1 s exposure time and read the value measured by DVM considering 1VDC 2 mA you must measure a 2 5 V DC 125 mV 2 375 2 625 V value for 5 mA anode current while for 4 mA you must have 2 V DC 100 mV 1 9 2 1 V If the measured value is out of range proceed as follows 1 Check in set up that the value for parameters P6 and P7 are those reported in the label of the tubehead positioned under the plastic covers 2 With th
53. itch S1 on e Action Verify the status of LED H1 green on the generator board Ifthe LED is OFF check fuses F1 if present F2 F3 and F4 Ifthe LED is ON check the flat cable connecting the CPU and the generator board and the cable connecting the CPU and the keyboard If no anomalies are found on the fuses and on the cables start replacing boards in the following order keyboard CPU generator board NOTE If there is an obvious fault of the electrolytic stabilization condenser the whole HF generator group must be replaced Rev 4 65 ENDOS DC CE DENTX SERVICE MANUAL e Troubleshooting 9 1 Error messages on the display As described in chapter 3 the ENDOS DC is totally controlled by a microprocessor which not only checks the programming of exposure parameters but also signals the various machine statuses and any anomalies and errors by messages in code on the display unit The following tables contain the various messages which may appear on the display their meanings their cause and how to behave NOTE Error messages belong to three different groups classified according to the seriousness of the anomalies found and their possible effect on the safety of the operators and or the system NOTE The system provides an Error logbook which can be consulted by the Service Technician by entering the set up program and selecting the P14 parameter see chapter 8 ENDOS DC
54. k that connector X11 tubehead is properly inserted and that disconnecting the connectors there is continuity between the group of yellow red wires and the group of brown green grey wires of connectors X7 X11 lt 1Q If continuity is proven replace the tubehead if not replace the scissors arm if lt 20 check the voltage between TP7 and TP2 GND of the CPU board is 1 6 1 8V and batween TP9 and TP2 GND is about 1 2 1 4V If voltage on TP7 is not correct replace the generator board if voltage on TP9 is not correct replace the CPU and repeat the check then replace the generator board if necessary 71 ENDOS DC CE j SERVICE MANUAL Troubleshooting Displayed message Intervention back up timer Intervention safety overvoltage PFC OVPFC Intervention safety undervoltage PFC UVPFC Note present also every time you switch off the equipment kV feedback beyond upper limit Note different thresholds if in IDLE or during exposure E17 mA feedback below lower limit ENDOS DC CE ANOMALY type RX ON too slow in climbing Emission also after end of exposure Corrective actions Check if jumper X8 on the generator board is well inserted Check parameter P02 Check connection to the tubehead and electrical continuity between pin 1 and pin 2 of connector X6 lt 20 Check electrical continuity of filament signal cable and of power cable Check correct order of wires on conn
55. le yellow green cable coming from the tubehead from the ground terminal of the wall support Remove the cables from the extension arm completely 8 Loosen the gear assembled on the extension arm at the end where the scissors arm is inserted remove the arm 9 Assemble the new arm as described in paragraph 6 4 2 10 Connect the cables as described in paragraph 6 6 1 11 Reassemble the tubehead as described in paragraph 10 1 from points 6 to 10 Rev 4 81 ENDOS DC CE DNA TX SERVICE MANUAL Service actions requiring part replacements 10 5 2 Replacing the scissors arm with Timer with mobile stand WARNING Before proceeding with these operations close the two sections of the scissors arm and tie them together Failure to follow these instruction will not only make it very difficult to assemble the system but may also harm the technician and damage the ENDOS DC CE arm itself 1 Remove the tubehead as described in paragraph 10 1 from points 2 to 5 2 Remove the plastic timer cover by loosening the two sealing screws on the lower side and lifting the cover from the bottom to the top let the top clamps out To make the operation easy disconnect all connection cables between wall support and cover 3 Remove the flexible cable connecting the logic card to the power card disconnecting it from the connector on the logic card 4 Remove the metal cover plate on the power card loosening the 4 fix
56. m 20 to 30 or Film Selection 13 Decrease 1 from 30 to 20 keys also in normal working or out of set up program modes and it is available to the user Display brightness variation This parameter makes it possible to vary the brightness of the keyboard display in order to compensate any differences in environmental light Values are changed by Increase 2 and Decrease 1 keys Emitted dose display In many countries there are legal requirements prescribing that newly set up radio diagnostic equipment must be provided if possible with a device that informs the specialist about the quantity of ionizing radiation produced by the equipment during the X ray procedure Since the ENDOS DC system undergoes extensive checks both in terms of kV and mA the dose administered to the patient can be displayed basing the calculation on experimental data The P13 value is O default so the dose is not displayed or 1 and the emitted dose will be displayed for 5 s on the display after this time the display goes back to the normal display status The dose is shown in mGy and it is calculated at the 20 cm cone exit The factor according to which the dose is calculated based on selection of the anode current and exposure time is an empirical factor determined by type tests performed on some prototypes during the design phase of ENDOS DC equipment it is clear that this calculation of the emitted dose can be affected by a serious error dep
57. n installation and use of the equipment itself ENDOS DC is built for continuous running with intermittent load for this reason the planned duty cycle must be observed Appropriate accessories such as lead aprons must be used where necessary to protect the patient from radiation Although the equipment is designed to provide a reasonable degree of protection from electromagnetic interference according to IEC International regulations it must be installed at an adequate distance from electricity transformer rooms static continuity units two way amateur radios and cellular phones The latter can be used only at a minimum distance of 1 5m from any part of the equipment Any instrumentation or equipment for professional use located near ENDOS DC must conform to Electromagnetic Compatibility regulations Non conforming equipment with known poor immunity to electromagnetic fields must be installed at a distance of at least 3m from ENDOS DC and supplied by a dedicated electric line ENDOS DC must be turned off when using electro cautery or similar equipment in the vicinity of the equipment itself The equipment is not designed to be used in the presence of anaesthetic mixtures inflammable with air oxygen or nitrous oxide Equipment parts which may come into contact with the patient must be cleaned regularly according to the instructions given later in the User s Manual WARNING For safety reasons it is forbidden to overload
58. n the page to read it while reading the other pages of the manual The ENDOS DC system has a modifiable configuration that can be adapted to specific usage needs matching parameters between the power card and the tubehead are also stored in the configuration making it necessary to change these parameters during service operations involving the replacement of one of these parts To enter the set up function press the Increase 2 and Decrease 1 keys simultaneously during the software version display phase during start up The condition is signaled on the display 22 showing the message Pro for 2 seconds from which you go to the real set up phase The parameter under modification is displayed by the words Pxx touch the X ray button to go to the following parameter without changing the value already stored touch either the Increase 2 or Decrease 1 keys to change the displayed parameter Press the X ray button to get the confirmation and storage of the new set parameter NOTE You must switch the system off to exit the set up program P00 System preparation This is the parameter that indicates if the system is constantly in the Ready for X rays POO 0 conditions or if it is going through the idle POO O condition In this case POO contains the number of seconds it is in the Ready for exposure status with the possibility of changing it between 15 and 120 default 30 NOTE When POO 0 the g
59. nslation of the Italian original version ENDOS DC CE iv Rev 4 SERVICE MANUAL DENTX Introduction 1 INTRODUCTION NOTE dine present manual is updated for the product it is sold with in order to grant an adequate reference in performing diagnostics and repair operations normally carried out by the service engineer The manual may not reflect changes to the product not impacting service operations The intraoral radiographic ENDOS DC produces high quality intraoral X rays thanks to the exam repetitiveness combined with reduced exposure times and the small dimensions of the focal spot ENDOS DC is designed exclusively for performing intraoral X rays The equipment has the following features e very good quality X rays pictures e user friendly e ergonomic design This manual is intended to give instructions for the correct installation and maintenance of the device 1 1 Icons in the manual d Indicates a NOTE we recommend particular attention in reading the subjects identified with this icon Indicates a WARNING subjects identified with this icon concern safety aspects regarding the patient and or the operator Rev 0 1 ENDOS DC CE DENTX SERVICE MANUAL OS Safety aspects 2 SAFETY ASPECTS w WARNING Read this chapter very carefully Villa Sistemi Medicali design and make their equipment according to safety requirements moreover they supply all necessary information for
60. ot be loose 3 Assemble the cover again Figure 7 2 Rev 1 53 ENDOS DC CE D NTX SERVICE MANUAL Checks Calibration and Adjustment 7 2 3 Adjusting the balance scissors arm e Adjusting the second arm Proceed as follows to adjust the scissors arm Adjusting the friction for small corrections picture A 1 2 3 4 Put the arm in a horizontal position remove the plastic coordinator covers This must be done carefully to avoid breaking the covers themselves Using a 2 5 mm hexagon wrench loosen the dowel 1 Using two 13 wrenches adjust the frictioning mechanism 2 by rotating one of the wrenches Y of a turn each time When you have finished the adjustment tighten the previously loosened dowel and reassemble the plastic covers Adjusting the spring picture B If adjustment of the friction is not enough you can adjust the spring to optimize the balance 1 Put the arm in a horizontal position remove the plastic coordinator covers This must be done carefully to avoid breaking the covers themselves Insert a 6 mm hexagon wrench about 200mm long contained in the kit P N 6661209900 This wrench must rotate clockwise if the arm tends to go down compared to the release position anticlockwise if it tends to go up When you have finished the adjustment reposition the plastic covers ENDOS DC CE Figure 7 3 54 Rev 1 SERVICE MANUAL j O Checks Calib
61. pressed for a number of seconds equal to P15 Switch off the system to exit the set up program ENDOS DC CE 62 Rev 4 SERVICE MANUAL D A i Set up The following table displays the values of programmable parameters Display Parameters Set Value New setting System preparation Delay time between 1000 msec 1 e 2 tempo display 100 Value of time out time for measurement of RX ON signal 3 msec Variation of drop time RX ON 20 msec P04 NOT ACTIVE Value of anode current used for analogue receptors film Display and variation of filament current check parameter minimum value Derived from the tubehead Display and variation of filament current check parameter maximum value Exposure counter display Derived from the tubehead P01 P02 P07 8 POS Exposure times correction value P410 Film type P11 Cone setting P12 Brightness display variation P13 Display emitted dose P14 Display error logbook P15 Receptor selection time set WARNING Parameters shown with 1 in the previous table can not be changed the perfect running of the system and its compliance with Directive CE 93 42 cannot be guaranteed if any change is made Rev 4 63 ENDOS DC CE 64 Command keyboard OMAN au A 10 11 12 SERVICE MANUAL Set up Figure 8 1 Command key Key for manually decreasing exposure times Key for manually increasing exposure times
62. procedure chapter 8 Check all configuration parameters The values of parameters P6 and P7 must be re entered Replacing the keyboard No particular operation is required after replacing the keyboard 80 Rev 4 SERVICE MANUAL DENTX Service actions requiring part replacements 10 5 Replacing the scissors arm 10 5 1 Replacing the scissors arm with wall Timer standard configuration WARNING Before proceeding with these operations close the two sections of the scissors arm and tie them together Failure to follow these instruction will not only make it very difficult to assemble the system but may also harm the technician and damage the arm itself 1 Remove the tubehead as described in paragraph 10 1 from points 2 to 5 2 Remove the plastic timer cover by loosening the two sealing screws on the lower side and lifting the cover from the bottom to the top let the top clamps out To make the operation easy disconnect all connection cables between the wall support and cover 3 Remove the flexible cable connecting the logic card to the power card disconnecting it from the connector on the logic card 4 Remove the metal cover plate on the power card loosening the 4 fixing screws 5 Remove the two fixing clamps on the screening braiding Remove the front covers of the extension arm 7 Disconnect cables X6 and X7 coming from the tubehead from the correspondent connectors Disconnect the ground cab
63. ration and Adjustment NES i J x e Adjusting the first arm If the first arm also needs to be adjusted Adjusting the friction for small corrections picture A 1 2 3 4 Close the arm scissors arm remove the plastic coordinator covers This must be done carefully to avoid breaking the covers themselves Using a 2 5 mm hexagon wrench loosen the dowel 1 Using two 13 wrenches adjust the frictioning mechanism 2 by rotating one of the wrenches Y of a turn each time When you have finished the adjustment tighten the previously loosened dowel and reassemble the plastic covers Adjusting the spring picture B If adjustment of the friction is not enough you can adjust the spring to optimize the balance 1 Rev 1 Close the arm scissors arm remove the plastic coordinator covers This must be done carefully to avoid breaking the covers themselves Insert a 6 mm hexagon wrench about 200mm long contained in the kit P N 6661209900 This wrench must rotate clockwise if the arm tends to go down compared to the release position anticlockwise if it tends to go up When you have finished the adjustment reposition the plastic covers Figure 7 4 55 ENDOS DC CE DENTX SERVICE MANUAL Set up 8 SET UP NOTE ri procedures shown in the following refer to Figure 8 1 at the end of this chapter To look up this picture easily ope
64. reen Ready for X rays LED 21 is always on ENDOS DC CE 56 Rev 4 SERVICE MANUAL Set up Rev 1 57 ENDOS DC CE DENTX SERVICE MANUAL Set up P01 Delay time between 1 and 2 time part Variable between 500 and 1400 ms default value 1000 ms variation at 10 ms intervals with possibility of quick variation by pressing key for more than 2 seconds The variation increases or increases depending on which key is pressed This time represents the filament pre heating time NOTE This parameter must not be changed from the factory configuration P02 Time out time change for detecting the RX ON signal Coming from the power section time can be changed between 1 and 10 ms with 3 ms presetting Increases or decreases at 1 ms intervals NOTE This parameter must not be changed from the factory configuration P03 Drop time RX ON drop time change Variable between 5 and 40 ms with 20 ms presetting variation at 5 ms intervals NOTE This parameter must not be changed from the factory configuration ENDOS DC CE 58 Rev 0 SERVICE MANUAL DENTX Set up P04 This parameter is not active Default value is 16 P05 Anode current value used for analogue receptors film This parameter makes it possible to select during setup the value of the anodic current used for the two of analog receptors film selections If PO5 0 the anodic current is 5 mA default valu
65. rent protection with the following features e rated current 6A e differential sensitivity 0 03A ENDOS DC CE 42 Rev 0 SERVICE MANUAL DENTX Installation a 6 6 1 Electrical connection for standard versions NOTE cannes coming from the tubehead are supplied for the 80 cm extension arm do not cut off the surplus as this might cause the generator to malfunction it must be placed between the metal plate and the plastic cover as shown in Figure 6 10 1 Remove the two connectors X6 with two contacts and X7 with five contacts on the power card make the connections observing the numbers of the cables and the connector itself connect the connectors into the power card again Remove the two fixing clamps 1 of the screening braiding 2 Connect the ground cable coming from the tubehead yellow green cable to the provided ground terminal of the wall support 3 The two cables X6 and X7 coming from the tubehead must enter the groove made in the wall plate this must be done so that the two free ends of the braiding correspond with the clamps S E Pa BS Figure 6 9 Rev 0 43 ENDOS DC CE DENTX SERVICE MANUAL i Installation 4 Screw down the braiding clamps 1 again making sure that they are well secured NOTE NS order to observe IEC regulations concerning electro magnetic disturbance
66. rms of the scissors arm from their sealing packing Figure 6 7 ENDOS DC CE 38 Rev 0 SERVICE MANUAL DENTX Installation 6 5 Installation of the optional parts 6 5 1 External signaling devices ENDOS DC allows connecting additional signaling devices outside the room as specified here below vw ATTENTION Specified values MUST NOT be overcome do not connects lamps powered with line voltage e A signaling device indicating device in operation can be connected to pins 1 and 2 of connector X4 on the CPU board The max load for this contact is 24V 40W e A signaling device indicating X ray exposure in progress can be connected to pins 3 and 4 of connector X4 on the CPU board The max load for this contact is 24V 40W e To use signaling devices it is necessary to prepare connections using 4 wires having a section of 0 5 mm2 6 5 2 Installation of chemical screws You are recommend to use chemical screws when installing the equipment on hollow bricks Follow the instructions annexed to the installation kit when installing chemical screws Rev 0 39 ENDOS DC CE DENTX SERVICE MANUAL i Installation 6 5 3 Counterplate A counterplate must be used on the opposite side of the wall when installing on walls that are too weak 1 Put the template 3 code 39619100 in the requested position to identify the requested mounting position on the wall Consider
67. scissors arm inside the extension arm following the drawing here below this will make sure that the cables are not tensioned during use To make this easier wrap together the cables with tape the grounding and signal cable Run the cable inside the extension arm until they come completely out at the opposite end insert the cable itself inside the rotation pin as shown in the following picture Figure 6 6 Check that the DP arm is perfectly inserted check that the rotation of the scissors arm inside the extension arm is the one ergonomically requested by the operator otherwise work on the frictioning mechanism 1 until you get the requested run NOTE This frictioning mechanism also serves to prevent the scissors arm from becoming detached and for this reason it must never be loosened completely Rev 1 Check the ergonomics of its movement otherwise adjust the frictioning mechanism 1 and or the tension of the arm balance springs see paragraph 7 2 3 Assemble the front covers of the extension arm packaged separately with the small parts 37 ENDOS DC CE DENTX SERVICE MANUAL _ Installation 6 4 3 Assembling the stand arms set Assemble the scissors arm there is no extension arm in this configuration being careful to insert the spacer 1 p n61613056 into the rotation pin NOTE Keep the arm perfectly orthogonal to the pole when inserting the extension arm rotation pin Do not release the a
68. second pause CPU card 2 short Watchdog intervention Replace CPU flashings followed by second pause 3 short Stack overflow underflow Replace CPU flashings followed by second pause 4 short Transition error between Replace CPU flashings statuses followed by 1 second pause 5 short Reset due to RESET instruction Replace CPU flashings followed by 1 second pause when replacing CPU recheck all set up parameters in particular parameters P6 and P7 taking them from the label under the tubehead covers ENDOS DC CE 76 Rev 5 SERVICE MANUAL DENTX Service actions requiring part replacements 10 SERVICE ACTIONS REQUIRING PART REPLACEMENTS 10 1 Replacement of the tubehead WARNING Before replacing the tubehead close the two sections of the scissors arms and tie them together Failure to follow these instruction will not only make it very difficult to assemble the system but may also harm the technician and damage the arm itself NOTE Before carrying out the following operations make sure the system is off The spare tubehead is shipped without plastic covers If required these must be ordered separately The tubehead is always sent with the identification label giving the new series number of the tubehead itself and of RX tube The values of the two parameters P6 and P7 connecting the tubehead itself to the generator card are given on the metal frame of the new tubehead these parameters
69. sholds if in IDLE or during exposure Check parameters P06 and PO7 Check value of resistor Fb mA see paragraph 7 1 Anodic current value Repeat exposure if the error is repeated replace tubehead Repeat exposure if the error is repeated replace generator board Filament current overload Check integrity of the flat cable connecting the CPU to the generator board if the message remains replace the generator board Disconnect X11 tubehead side and check that pint 4 and 5 of X7 are not shorted replace the CPU board Even if the message disappears make an exposure if other error messages show up replace the tubehead Anode overload Short circuit on Inverter load possible discharge on tubehead 1 Repeat an exposure if the message is confirmed check the values of parameters P6 and P7 if necessary store the proper values deriving them form the tubehead if the problem persists and the values of P6 and P7 result changed from those expected loss of stored data replace the CPU board Disconnect X10 tubehead side and verify that pin 1 and 2 of connector X6 are not shorted Replace the tubehead Repeat exposure if the message is confirmed replace the generator board Signal of kV overvoltage Repeat exposure if the error is repeated 1 2 Check connections to the tubehead Check electrical continuity of the filament signal cable between pin 1 and pin 3 of X7 and the corresponding pins of X11
70. si 2 SAFETY ASPECTS Dol Warnings POP OECD OO RE decade Ee 2 2 Protection from X rays 2 0 0 cece cece eee ee conta eens eens 2 3 Environmental risks and disposal c cceeeeee ee eee 234 Symbols USE ersinnen oe epee cgasaacvasadasaewe sea vers 2 5 Attention points during installation 000 3 DESCRIPTION 3 1 Identification labels seser cece cece ee eneeeeeeee tees 32 FUNCIONA di 3 2 1 ENDOS DE eistiessvagiaicccecscanssesensdasecceatbulreempananeccects 3 2 2 High frequency generator or HF ee 3 3 Configurations ocmiososacannncinntararacin a cinco ca sa 3 3 1 Standard configuratiON oooccconccncnccnnnncnnnininenininenins 3 3 2 Mobile stand configurati0O occcoocccnccccnnnccnnnicnnnnins 3 3 3 Remote keyboard configurati0M occoocccncccccnonccnnccs 4 TECHNICAL FEATURES 4 1 Method of measuring technical factors 4 2 Curves tube features voioncneni nsacicnono cocinera a cante ceci soon 4 3 Standard and regulati0nS oococcocnncncnnonnnncoconanacininos 4 4 Overall dimensions oooccoccnononocononncncnnroncnconononacanonoso 5 PRE INSTALLATION 5 1 Mounting methods coococcccnncncncononncncnncnncncnnonanacininnos 5 2 Electric pr s ttih g ciccociconsncianiniaieatas atada dads ruido 6 INSTALLATION 6 1 Timer set up standard configuration ooooocccnococinnn 6 2 Assembling the mobile stand and timer installation 6 3 os A ress oh nese saaceacsavadseatne sees wets 6 4 Assem
71. ssors arm Mobile stand Timer with high frequency generator a AO N amp X ray button Rev 0 13 ENDOS DC CE D NTX SERVICE MANUAL Description 3 3 3 Remote keyboard configuration It is possible to get a remote keyboard configuration outside the exam room Moreover the apparatus provides two separate contacts for connection with external signaling devices One contact signals the equipment is ON and ready for use while the second one signals the presence of X rays The connection mode and the necessary signal device requirements are reported at paragraph 6 5 1 NOTE In this configuration you are recommended to install the remote keyboard in a place that is reserved for the exclusive use of specialized technical personnel and not in a place that is accessible to unauthorized persons ENDOS DC CE h OO N e Figure 3 3 Tubehead Scissors arm Extension arm High frequency generator 14 Rev 0 SERVICE MANUAL Description Rev 0 5 Remote timer 15 ENDOS DC CE DENTX SERVICE MANUAL e Technical features 4 TECHNICAL FEATURES Technical features Equipment ENDOS DC Manufacturer VILLA SISTEMI MEDICALI Buccinasco MI Italia Class I with type B applied EN 60601 1 classification Protection level Standard apparatus IP20 Line frequency 50 60 Hz Rated current 0 2 Arms 0 4 Arms continuous continuous 2 7 Arms impulsive 7 2 Arms impulsive
72. t recheck all set up parameters in particular parameters P6 and P7 deriving them from the attachment to the Manuals or from the label positioned under the covers of the tubehead Rev 4 67 ENDOS DC CE DENTX SERVICE MANUAL e Troubleshooting 9 1 2 Messages in Idle status Ready for exposure Anomalies in the Idle status inhibit the possibility to do an exposure These messages cannot be removed without turning the device OFF NOTE IF ONE OF THE ERROR MESSAGES LISTED HERE BELOW SHOWS UP BEFORE IMPLEMENTING THE DESCRIBED CORRECTIVE ACTIONS CHECK CAREFULLY THE PROPER GROUNDING AND THAT GROUNDING SHIELDS ARE POSITIONED INSIDE THEIR LODGING AND PROPERLY TIGHTENED SEE Figure 6 9 IN ADDITION CHECK THAT CONNECTORS X5 X6 X7 ON THE GENERATOR BOARD AND X2 ON THE CPU BOARD ARE PROPERLY POSITIONED AND MAINLY THAT WIRES OF THE CABLES X6 AND X7 ARE WELL SECURED AND THE TERMINALS ARE CORRECTLY INSERTED Displayed ANOMALY type Corrective actions message Anomaly breakdown of Check status of LED H3 red on the filament circuitry generator board if it is ON check fuse F4 and after check if connector X7 is properly inserted if OFF disconnect X7 checking that the LED turns ON if it does not replace first the generator board and then the CPU Check integrity of flat cable and if it is weel inserted in connector X5 generator board and X2 CPU board Check electrical continuity between pin 4 and 5 of conne
73. the metallic braiding of the two cables must be secured correctly carry out a check to ensure this has been done correctly Moreover a bad ground contact may increase electric noise inside the power card causing the system to malfunction 5 ENDOS DC CE Check that the timer is preset for the correct working tension This test must be carried out by checking that the value and type of fuse F2 in the power card corresponds to that which is stated 3AT 250V for 230V version and 6 25AT 250V for 120V version Reassemble metal cover plate and connect the flexible cable between the generator card and the logical card Make the connection between the general switch and power line using a bipolar cable plus ground cable with the minimum suggested section of 2 5mm2 ending the cable towards the timer with the provided prod terminals Fix the cable to the terminal board observing the positions shown L line brown cable N neutral blue cable Ground yellow green cable The conductors must be secured at the timer base with the provided clamp Connect the telephone cable between the logical card and the keyboard card connect the cable coming from the X ray button to the corresponding connector on the keyboard card placed on the cover Secure the timer again making sure that any surplus cables coming from the tubehead do not hinder the operation X ray button connector
74. tton during Reset the error and repeat exposure exposure Make sure NOT to release the X ray button before the buzzer stops Release button during pre Reset the error and repeat exposure heating phase 2 time not Make sure NOT to release the X ray present yet button before the buzzer stops WARNING If AO2 is signaled the X ray button has been released while emission is already underway Therefore the film must be replaced in order to obtain diagnostic images In the case of an AO1 signal the X ray button must be released if this is not pressed it identifies a fault and therefore you must call the technical service Rev 5 75 ENDOS DC CE DENTX SERVICE MANUAL e Troubleshooting 9 1 5 Timer with display off or not working A situation may occur that the timer is powered but with the display off and functions absent in this case you should access the CPU card taking great care to ensure that the timer is kept powered and check if the red HD1 LED on the CPU card is flashing If so proceed as shown in the following table according to the flashing HD1 LED modes Display ANOMALY type Corrective actions Y second Missing communication between Switch off and on again check flashing CPU card and Display card connection between CPU and Y second pause keyboard replace CPU card or keyboard short flashing Brown out Switch off and switch on again followed by check feed 5V to CPU card replace
75. user in this case it will be necessary to adjust the extension arm frictioning mechanism e the scissors arm is not perfectly balanced in this case you must adjust the springs Rev 0 51 ENDOS DC CE DENTX SERVICE MANUAL m Checks Calibration and Adjustment 7 2 1 Adjusting the extension arm support frictioning mechanism The device to adjust the arm support frictioning mechanism is placed on the front of the wall support To make this adjustment you must proceed as follows 1 Remove the plastic timer cover by loosening the two sealing screws placed on the lower part of the wall plate Lift the plastic cover from the bottom and push it upward to release it from the upper stops To make the operation easier disconnect all cables connecting the Timer and the plastic cover 2 Using a 2 mm hexagon wrench adjust the frictioning mechanism screws 1 until the movement of the arm is ergonomic 3 Reposition the plastic cover when you have finished Figure 7 1 ENDOS DC CE 52 Rev 1 SERVICE MANUAL DENTX Checks Calibration and Adjustment a 7 2 2 Adjusting the extension arm frictioning mechanism 1 Remove the small front extension arm cover working carefully 2 Adjust the frictioning mechanism 1 using a 4 mm hexagon wrench checking the rotation of the scissors arm NOTE The purpose of this frictioning mechanism is to prevent the scissors from becoming detached so it must n

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