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4. Troubleshooting

ORTHOPANTOMOGAPH OP 2D

79

Error E20 (PCF: POWERGOOD signal is down)

CAUSE

No power signal.

SOLUTION

Check to see if the signal is present on L1500.
If the signal is not present, replace P1910.
If signal is present, the fault could be in the signal rout-
ing. Check signal on L1500, L1700 and L1200 and in
the relevant cables. Replace any faulty boards or ca-
bles.

Error E22 (Button stuck)

Appears only on start-up

CAUSE

The membrane switches on the column are stuck.

SOLUTION

Reboot, if problem persists, replace the membrane key

panel.

4.4 Bad quality images

Vertical white stripes on the image

Probably due to tube arcing.

Refer to the trouble shooting information given in error

code E0.

Horizontal white stripes on the image

Recalibrate the CCD.

Refer to the section

Calibrating the CCD sensor

in the

installation manual.

Image too light or too dark

Can be caused by several various factors.
- The kV values were set too small/large for the pa-

tient

- Tube head emission production rate dropped

- Badly set workstation software settings

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Содержание ORTHOPANTOMOGAPH OP 2D

Страница 1: ...ORTHOPANTOMOGAPH OP 2D Digital Panoramic X ray Unit Service Manual ENGLISH 216143 rev 1 0 805 5058...

Страница 2: ......

Страница 3: ...s reserved Under the copyright laws the documentation may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or part without the prio...

Страница 4: ...IV ORTHOPANTOMOGAPH OP 2D Contents...

Страница 5: ...Electrical Safety 2 Caution Electrostatic discharge 3 Warning Explosion hazard 3 Warning Cleaning the unit 3 1 4 Unauthorized Modifications 4 1 5 Disclaimer 4 1 6 Yearly maintenance 5 Exposure switch...

Страница 6: ...d motor control 18 Exposure logic 19 Position control 20 Overview of the Imaging Chain 20 2 6 Block diagram 23 2 7 Fuse diagram 24 2 8 Wiring diagrams overview 25 3 Circuit Boards 29 3 1 L900 Display...

Страница 7: ...icator LEDs 41 L1600 Test Points 41 3 5 L1700 Connector Board 42 L1700 Location 42 L1700 Field replaceable parts 42 L1700 Description 43 L1700 Indicator LEDs 43 L1700 Test Points 43 L1700 Block Diagra...

Страница 8: ...ts 56 3 10 R5100 3 Phase Microstepper Driver 57 R5100 Location 57 R5100 Field replaceable parts 57 R5100 Description 57 R5100 Indicator LEDs 58 R5100 Test Points 58 3 11 CCD Sensor Filter board 59 CCD...

Страница 9: ...out of limits 75 Error E7 Opto or r motor failed during r movement 75 Error E8 File system failure 76 Error E10 CCD initialization configuration failure 76 Error E11 CCD power failure 76 Error E12 CCD...

Страница 10: ...ator board additional instructions 98 L1700 Connector board additional instructions 98 L1200 CPU board additional instructions 99 L1500 Power Supply board additional instructions 99 L1910 PFC board ad...

Страница 11: ...d in it Read the unit s installation manual and familiarize your self with the warnings and precautions listed in it Use only the original spare parts that are provided by the manufacturer when repair...

Страница 12: ...ture plate in the collimator is made of lead Pb which is toxic Do not touch it with your bare hands Do not open the tubehead There are no serviceable parts mechanical or electrical inside the tubehead...

Страница 13: ...cuit boards use an antistatic wrist wrap which is connected to a ground point through a 1 Mohm current limiting cable For a ground point use water pipes radiators or other ob jects that are known to b...

Страница 14: ...ided no compo nents or parts are removed from the unit and no unau thorized adjustments are made to the beam limiting unit or tube housing assembly Never remove or remanufacture any part of the tube h...

Страница 15: ...and cable if they are dam aged or do not function correctly mA test WARNING X rays are generated when this test is car ried out PROTECT YOURSELF FROM RADIATION 1 Connect the probe of a DMM to test pin...

Страница 16: ...the high voltage parts on the L1800 and P1910 boards 2 Select the kV in s2terminal using the setkv xx command Then set exposure time to 2000 ms us ing command exp refer to section 5 S2terminal and ser...

Страница 17: ...tch the unit on activate the T mode test and then take an exposure to check that the motors operate smoothly and without any excessive noise Press the up down keys to check the Z motor vertical carria...

Страница 18: ...ing properly Tubehead Make sure that oil is not leaking from the tubehead If the tubehead shows signs of oil leakage replace it Fire risk WARNING Disconnect the unit from the main power supply before...

Страница 19: ...ironmentally friendly or hazardous These parts must be disposed of in accordance with all lo cal national and international regulations regarding the disposal of non environmentally friendly or hazard...

Страница 20: ...used to take x ray exposures of any other part of the human anatomy The unit can be used to take adult panoramic full width child panoramic reduced width TMJ and bitew ing images The unit can operate...

Страница 21: ...assemblies 1 Column 2 Upper shelf 3 Tubehead 4 CCD sensor Tubehead 3 CCD sensor 4 Rotating unit 5 Vertical carriage 6 Emergency stop button Press to stop rotate to release 7 On off switch rear of col...

Страница 22: ...GAPH OP 2D 2 Unit Description 1 Head support 2 Midsagittal light 3 Mirror 4 Frankfort light and light positioning knob 5 Focal trough positioning knob 6 Patient support 7 Focal trough light 8 Patient...

Страница 23: ...election keys P1 Standard Pan P2 Pediatric Pan P3 TMJ BW Bitewing 6 Patient Size selection keys Child Juvenile Adult Large adult 7 Manual M mode selection key 8 kV and mA selection keys manual mode on...

Страница 24: ...14 ORTHOPANTOMOGAPH OP 2D 2 Unit Description 2 3 Unit dimensions...

Страница 25: ...in this case it must be attached to the show stand part no 9802666 Refer to the installation manual for the instal lation requirements The motorized carriage is attached to the column and can slide u...

Страница 26: ...d to the bot tom of the vertical carriage It comprises handgrips for the patient to hold and the patient support The chin rest supports the patients lower jaw and the two temple supports on the head s...

Страница 27: ...to L1800 Generator Board and L1500 Power Supply board which supplies low voltages to all the other circuit boards The power for the AC motor Z Motor comes from an autotransformer that is automatically...

Страница 28: ...ols unit PC communications The necessary unit settings and parameters for all the imaging programs are stored in the memory which is also on L1200 Motors and motor control There is one stepper motor a...

Страница 29: ...e button is pressed and held down The Generator board receives the correct kV and mA references from the CPU A few milliseconds after the exposure button is pressed Expsw preheat is enabled Preh After...

Страница 30: ...his description assumes that the unit is ready to take an exposure Image acquisition is controlled by the image capturing driver which is installed as part of the driver software in the PC connected t...

Страница 31: ...bit A D converter The CCD sensor board sends the image data now 12 bits to the CPU board where they are saved on the SDRAM The image information is transferred to the PC via the Ethernet cable After...

Страница 32: ...22 ORTHOPANTOMOGAPH OP 2D 2 Unit Description...

Страница 33: ...2 Unit Description ORTHOPANTOMOGAPH OP 2D 23 2 6 Block diagram...

Страница 34: ...24 ORTHOPANTOMOGAPH OP 2D 2 Unit Description 2 7 Fuse diagram...

Страница 35: ...6 7 0 52 6 7 326 287 6723B 9 6 5 6 5 0 16 6 7 32685 6 7 7 51 76 83 2 1 7 51 7 0 16 7 5 1 1 1 9 9 B B B B 326 287 6723B 9 6 5 51 1 B 7 9 9 51 1 B 7 03 02 8 0 9 7 5 7 5 5 21 26 5 2 23 1 9 36 1 3 3 3 83...

Страница 36: ...78 7 78 7 0 0 1 93 0 3 1 78 78 3 1 93 0 1 1 1 35 35 0 3 0 0 3 0 1 5 725 2 5 78 66 0 DVFDGH RDUG 5D 7XEH 0 16 7 5 1 1 3 7XEHKHDG LQWHUIDFH ERDUG 02 1 9 9B 9 1 9 1 02 9 9B 9 1 9 1 02 9 1 9B 9 1 03 02 8...

Страница 37: ...W XVHG 63 5 B B 1 63 5 67 57 QRW XVHG 352 0 7 QRW XVHG 728 6 5 1 1 6 96 1 5 5 5 5 5 5 1 1 1 1 9 9 5 8 1 RSWUH 9 9 9 B 1 B 1 B 1 2 5 9 9 1 1 6 53B B 1 6 53B B 1 6 53B B 1 6 53B B 1 VKDUS 352 0 7 QRW XV...

Страница 38: ...28 ORTHOPANTOMOGAPH OP 2D 2 Unit Description...

Страница 39: ...OP 2D 29 3 Circuit Boards NOTICE An asterisk after a signal name indicates an active low level signal 3 1 L900 Display adapter L900 Location In the rotating unit on the CCD sensor side To access remo...

Страница 40: ...h screen interface L900 reads touch screen data and sends it to L1200 CPU board via the SPI interface L1200 CPU board drives the display data throught the L900 board L900 board produces supply voltage...

Страница 41: ...t Boards L1200 ORTHOPANTOMOGAPH OP 2D 31 3 2 L1200 CPU Board L1200 Location In rotating unit on the CCD sensor side To access re move the sensor outer cover see section 7 1 L1200 Field replaceable par...

Страница 42: ...C connection I O buffers and a 14 bit A D converter The image data are saved in an SDRAM L1200 Indicator LEDs LED Colour Indicates D6 green 5V on D8 green Ethernet signal activity D9 green 10 Base T 1...

Страница 43: ...3 Circuit Boards L1200 ORTHOPANTOMOGAPH OP 2D 33 L1200 Block Diagram...

Страница 44: ...MOGAPH OP 2D 3 Circuit Boards L1500 3 3 L1500 CCD Power Supply L1500 Location In the rotating unit on the the CCD sensor side To access remove sensor outer cover see section 7 1 L1500 Field replaceabl...

Страница 45: ...ther voltages that the unit requires The CCD sensor require 3 3V 3 3V 3V 15V 9 4V 5V L900 and the 3 phase stepper motor require 24V L1200 and peripheral electronics require a regulated 5VDC power supp...

Страница 46: ...36 ORTHOPANTOMOGAPH OP 2D 3 Circuit Boards L1500 L1500 Block diagram...

Страница 47: ...CD on D12 green 5V on D13 green 5 0V_CCD on D14 green 9 4V_CCD on D16 green 24V on D17 green 3 3V on L1500 Test Points Number Description Value TP1 24V 24V TP5 CCDENA 5V on 0V off TP7 5 0V TP8 5 0V_CC...

Страница 48: ...38 ORTHOPANTOMOGAPH OP 2D 3 Circuit Board L1600 3 4 L1600 Z Motor Driver L1600 Location On the upper shelf To access remove shelf upper top cover and the touch protection see section 7 1...

Страница 49: ...s on the side of the vertical carriage are used to activate the AC motor Micro switches at the top and bottom of the column monitor the upper and lower positions of the Z move ment Based on the logic...

Страница 50: ...40 ORTHOPANTOMOGAPH OP 2D 3 Circuit Board L1600 L1600 Block diagram...

Страница 51: ...Emergency stop button is on D5 green SET 100V autotransformer tapping 100V enabled D6 green SET 115V autotransformer tapping 115V enabled D7 green SET 230V autotransformer tapping 230V enabled L1600...

Страница 52: ...OMOGAPH OP 2D 3 Circuit Boards L1700 3 5 L1700 Connector Board L1700 Location In the rotating unit on the the CCD sensor side To access remove sensor outer cover see chapter 7 1 L1700 Field replaceabl...

Страница 53: ...als to the other boards L1700 receives signals from the tubehead kVfb mafb and tubeheat and scales the voltage swing 0 5V linearly to 1 25V 3 75 V which is the input for the A D converter on the CPU b...

Страница 54: ...44 ORTHOPANTOMOGAPH OP 2D 3 Circuit Boards L1700 L1700 Block Diagram...

Страница 55: ...erator Board until the capacitors have discharged After switching the unit off wait 10 minutes for the capacitors to discharge When LED H1 goes out the capacitors are discharged L1800 Location In rota...

Страница 56: ...e the generator board generates pre heat current to warm up the filament before x rays are switched on and filament current during exposure The Generator board receives kV and mA feedback signals from...

Страница 57: ...3 Circuit Boards L1800 ORTHOPANTOMOGAPH OP 2D 47 L1800 Block diagram...

Страница 58: ...V FILTERED MAPWM TP3 GND 0V TP4 15V TP5 NOT USED TP6 NOT USED TP7 HVGND 0V TP8 17V TP9 VDD 15V_HVGND TP10 FILTERED KVPWM TP11 mAref Calibrated by the CPU TP12 kVref Counted from value 1V 22kV TP13 NOT...

Страница 59: ...t is switched on There is high voltage on the large heat sink on this board when the unit is switched on Do not touch this board until the capacitors have discharged After switching the unit off wait...

Страница 60: ...e genera tor board The board also has auxiliary flyback convert er that produces the lower raw voltages for the L1500 power supply board The major features of the board the supply voltages do not depe...

Страница 61: ...3 Circuit Boards P1910 ORTHOPANTOMOGAPH OP 2D 51 P1910 Block diagram...

Страница 62: ...52 ORTHOPANTOMOGAPH OP 2D 3 Circuit Boards P1910 P1910 Indicator LEDs LED Colour Indicates A5 green 380V A8 green 27V5 A9 green 20V A10 green 17V_HVGND A15 green 15V P1910 Test Points None...

Страница 63: ...At the rear of the column near the base part of the main power and interface panel assembly L2000 Field replaceable parts None L2000 Description L2000 serves as an external interface to the outside en...

Страница 64: ...54 ORTHOPANTOMOGAPH OP 2D 3 Circuit Boards L2000 L2000 Indicator LEDs None L2000 Test Points None...

Страница 65: ...0 Field replaceable parts None L2100 Description L2100 is used to detect the position of the rotating unit L2100 has two optical switches that generate sensor signals ROTSW1 and ROTSW2 according to wh...

Страница 66: ...56 ORTHOPANTOMOGAPH OP 2D 3 Circuit Boards L2100 L2100 Indicator LEDs None L2100 Test Points None...

Страница 67: ...ead support To ac cess remove the head holder assembly lower protec tion assembly see section 7 1 R5100 Field replaceable parts None R5100 Description R5100 controls the 3 phase stepper motor that dri...

Страница 68: ...en 5V on D2 green 24V on R5100 Test Points Number Description Value TP1 GND 0V TP2 VREF 0 97V 0 1V when HICUR 1 1 95V 0 1V when HICUR 0 default value TP3 CLK 5V freq 15kHz TP4 ENA 5V active 0V idle TP...

Страница 69: ...board also re quires the sensor to be removed CCD Field replaceable parts None Inside the CCD Sensor there is the CCD Sensor board The board cannot be accessed CCD Description CCD sensor converts X ra...

Страница 70: ...quency is between 0 50Hz On TDI frequency is between 100 Hz 1kHz Flashing TDI frequency is between 50 100Hz or above 1kHz Power Supply LEDs Indicate the different voltages required by the CCD sensor T...

Страница 71: ...off passive CCD sensor CCD TxD will also be off NOTICE If CCD TxD is off CCD RxD is on and the CCD status LED flashes during and after image capture it indicates that the CCD sensor tried to receive t...

Страница 72: ...CD Sensor Filter Filter Field replaceable parts None Filter Description Sensor filter board is a low pass type RF filter board which filters electromagnetic interference EMI from all CCD signal and an...

Страница 73: ...error codes H user errors and E system errors When an error code appears on the display the unit will stop working The unit cannot be operated while the er ror code is on the display Clear the error b...

Страница 74: ...e An undamaged wire will have close to no resistance 0 ohm a damaged wire will have a high resistance value Make sure that all cables are correctly and securely at tached to their respective connector...

Страница 75: ...in fuses 2 They are located below the main power supply cable at the rear of the column The fuse ratings are stated in chapter 2 5 Electrical description Main fuses The on off switch light comes on bu...

Страница 76: ...9 3V on when CCDENA is active D10 3 3VD on when CCDENA is active D12 5V must be on D13 5V on when CCDENA is active D14 9 9V on when CCDENA is active D16 24V must be on D17 3 3V must be on Test jumper...

Страница 77: ...display CAUSE The emergency switch has been pressed down NOTICE LED D4 ESTOP on on L1600 will come on when the emergency switch is pressed down SOLUTION Turn the emergency switch clockwise to release...

Страница 78: ...e is properly attached to its connector on L1600 board CAUSE B The light is faulty SOLUTION B Check if the light works through another Laser output by connecting it to the connector of working light T...

Страница 79: ...C Unlikely All the lights are faulty SOLUTION C Replace all the lights they are connected to L1600 Z motor driver and then realign them Refer to the instal lation manual Up down Z motor keys do not wo...

Страница 80: ...D5 SET 100V D6 SET 115V D7 SET 230V CAUSE C The side control panel up down keys has failed SOLUTION C If D2 and D3 on L1600 do not come on when the up down keys are pressed it indictes that the side c...

Страница 81: ...failed SOLUTION B Replace the exposure switch CAUSE C Faulty cable s between L2000 Interface board and L1600 Z motor driver or between L1600 and L1700 Connector board or between L1700 and L1200 CPU b...

Страница 82: ...current are correct Software Check See 5 S2terminal and service functions If the feedback values are not correct use the exp ser vice function to measure and compare the values Re fer to S2terminal an...

Страница 83: ...on is not sucessful measure the feedback signals from the L1800 Generator board From the s2terminal select exp Connect a DMM to the TP14 kVfb and TP17 GND on the Generator board and take an exposure T...

Страница 84: ...r If the error message reappears after recalibration L1200 is faulty and needs to be replaced See 7 5 Re placing circuit boards Error E4 Tubehead too hot or too cold CAUSE A The tube head has overheat...

Страница 85: ...faulty The rotating unit cannot position itself correctly and keeps on rotating until the timeout E 9 stops move ment because L2100 is faulty The rotating unit does not move when the Return key is pre...

Страница 86: ...of the fuses on L1500 have blown Check that CCD filter board is mounted correctly and cables are properly connected If the problem still exists replace sensor Error E11 CCD power failure CAUSE Supply...

Страница 87: ...error CCD EEPROM CRC test failed CAUSE L1200 CPU failed to read CCD configuration param eters SOLUTION Reboot the unit If the problem persists change the CCD sensor Error E14 Tubehead disconnected CAU...

Страница 88: ...00 faulty SOLUTION C Replace cable CAUSE D Cable between L900 and LCD display faulty SOLUTION D Replace cable CAUSE E L900 faulty SOLUTION E Replace L900 CAUSE F LCD display is faulty SOLUTION E Repla...

Страница 89: ...up CAUSE The membrane switches on the column are stuck SOLUTION Reboot if problem persists replace the membrane key panel 4 4 Bad quality images Vertical white stripes on the image Probably due to tub...

Страница 90: ...tioning If the unit is producing bad quality images first make sure that the user is positioning the patients correctly For information on how to position the patient refer to the User s Manual A badl...

Страница 91: ...s 5 In the Command prompt key in cd space and then the path where the S2terminal files are installed e g c s2terminal _________________________________________________________________ cd c s2terminal...

Страница 92: ...option to clear it help display info on command help cmd or h cmd imagecalib takes a calibration image for calibrating the DSD ip configure ip address kVcheck test kV mA combinations log service log...

Страница 93: ...___________ Information about the selected function will ap pear at the bottom of the list of functions 10 To display information about an individual command key in help cmd where cmd is the command n...

Страница 94: ...tion of the procedure which will last up to three min utes During the calibration procedure you will hear the exposure warning signal and calibration values current at the start and calibrated at the...

Страница 95: ...P calibration value Use values 8mA 70kV and 1sec FACTORY USE ONLY dc takes dark current image dc dark current Is used to check if the CCD sensor is working Press the Return key to start the check Duri...

Страница 96: ...ation when using this function The default exposure time is 1000 ms when exp is keyed in If you wish to have a longer exposure time key in exp and them enter a value for example ______________________...

Страница 97: ...ounter when the tubehead is replaced help display info on command help cmd or h cmd Displays the service command list and information about the commands imagecalib takes a calibration image for calibr...

Страница 98: ...re logs There are several log options all default display the complete log clear erase all log entries newest display the latest log entry statistics display the log statistics To select one of the lo...

Страница 99: ...bugging when the unit displays error E5 motortest run exposure ramp A test drive for the rotation motor The test checks that motor is driven to the correct angle and that it works as specified optotes...

Страница 100: ...intgen prints the generator settings Displays the settings that are stored in the configuration memory quit quit service terminal Exits and closes the service terminal reset reboot the unit Reboots th...

Страница 101: ...d activates the CCD sensor but the rotating unit does not move It is used to check the beam alignment during unit installation refer to the Installation manual for more information CAUTION Protect you...

Страница 102: ...Extract the zip files into a suitable path on your PC 2 Power on the unit to be updated 3 Open the terminal connection 4 Key in command xu rX and press ENTER NOTICE X is the version of the manifest fi...

Страница 103: ...7 Replacing parts ORTHOPANTOMOGAPH OP 2D 93 7 Replacing parts 7 1 Removing covers Instruction on how to remove the column covers are in section 7 6 Replacing the z carriage motor...

Страница 104: ...The normal installation and alignment tools Replacement parts New tubehead Tubehead label Replacing the tubehead 1 Switch the unit off and disconnect it from the main power supply 2 Remove the tubehea...

Страница 105: ...cing parts ORTHOPANTOMOGAPH OP 2D 95 3 Remove the EMC cover 4 screws and then the clear plastic PFC and generator protec tion insulator 3 screws 4 Disconnect all cables and the ground cable from the t...

Страница 106: ...he four 4 nuts that hold the tube head to the rotating unit frame and remove the tubehead 7 Attach the new tubehead to the rotating unit frame with the four 4 nuts NOTICE When tightening the tubehead...

Страница 107: ...Attach the new tubehead label to the under side of the tubehead side cover 6 Replace the covers 7 3 Replacing the CCD sensor After replacing the CCD sensor realign the unit refer to section 8 Aligning...

Страница 108: ...Q057Q3DG01 SW1 off SW2 on NOTICE When L900 and display assemblies are ordered as spareparts they are always preset and tested at the factory The switch information is just for your information L1800 G...

Страница 109: ...quired update the FW if required serno setserno Refer to section 5 S2terminal and Service Functions L1500 Power Supply board additional instructions After replacing the board use the s2terminal to rec...

Страница 110: ...then the unit removed from the wall and placed on the floor before the z motor is replaced 1 Switch the unit off and disconnect it from the power supply 2 Remove the covers from the bottom of the colu...

Страница 111: ...upper self and then disconnect all the cables that connect the rotating unit to the L1600 Z motor board Also disconnect the Ethernet cable and the ground leads 4 CAUTION HEAVY OBJECT THE FOLLOW ING T...

Страница 112: ...OLLOW ING TASK REQUIRES TWO PEOPLE Remove the unit from the wall or exhibition stand and lay it on the floor For information on how to do this refer to the installation instructions and follow in reve...

Страница 113: ...7 Replacing parts ORTHOPANTOMOGAPH OP 2D 103 7 Carefully slide the column upper front plate off of the column Be careful not to damage the surface finish...

Страница 114: ...ety nut to the bottom of the z carriage assembly and then slide the z carriage upwards away from the safety nut 9 Remove the terminal plate from the column assemble 2 screws and then disconnect the mo...

Страница 115: ...m of the column assembly and remove the motor 11 Install a new z motor connect all the cables and then replace all part and covers 12 Reattach the unit to the wall or exhibition stand and then reinsta...

Страница 116: ...nner or socket wrench 4 mm socket wrench 8 2 Removing the covers 1 Remove the covers from the unit if they have not been removed already 8 3 Checking and Aligning the CCD Sensor 1 Switch the unit and...

Страница 117: ...e must be between 0 1 and 2mm from the bottom edge of the image If the beam black line is not in the middle of the CCD aperture the gray area the position of the CCD Sensor must be adjusted to the rig...

Страница 118: ...he CCD sensor until the beam is vertical and centered in the middle of the CCD aperture 7 Tighten the nuts after the adjustment 8 4 Adjusting the vertical position of the beam If the bottom edge of th...

Страница 119: ...beam downwards turn the height adjustment screw clockwise To move the beam upwards turn the height adjustment screw counter clockwise 3 Tighten the four locking nuts 4 PC Enable image capture on still...

Страница 120: ...osition of the collimator 1 Manually rotate the Rotating Unit to the Patient In Out PIO position rotating unit parallel to the front of the upper shelf and the tubehead t h on the right Insert a 4 mm...

Страница 121: ...ating unit in position 6 Protect yourself from radiation Press and hold down the exposure switch to take an exposure 7 Compare the two images just taken Use the measuring tools in the dental imag ing...

Страница 122: ...the collimator adjusting screw counter clockwise To adjust the collimator loosen the nuts 2 that hold the collimator assembly in position and the adjust the left right position of the collima tor with...

Страница 123: ...through the GUI of the unit 2 Make sure that the chin support is in the 0 position and then attach the alignment cone assembly to the chin support 3 Manually rotate the Rotating Unit so that it is par...

Страница 124: ...gnment cone will be in the center of the exposed area If you only see the sides of the alignment cone the chin support must be moved to the left or the right To adjust the positon of the chin support...

Страница 125: ...he unit 2 Make sure that the chin support is in the 0 position and then attach the alignment cone assembly to the chin support 3 Manually rotate the Rotating Unit to the Patient In Out PIO position Ro...

Страница 126: ...the alignment cone the focal trough is not in the correct position and it must be adjusted by moving the rotating unit RU backwards away from col umn or forwards towards the column To adjust the posit...

Страница 127: ...left and right hand pins are same with no more than 0 5 mm differ ence the Rotating Unit must be positioned in the forward backward position If the middle ball in the image is too wide turn the adjust...

Страница 128: ...igning the Patient Positioning Lasers Refer to the installation manual 8 10 Calibrating the CCD sensor 1 PC Enable image capture 2 PC Select the imagecalib refer to the instal lation manual for inform...

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