Summary of Contents for KaVo ORTHOPANTOMOGAPH OP 2D
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ORTHOPANTOMOGAPH™ OP 2D Digital Panoramic X-ray Unit Service Manual ENGLISH 216143 rev.1 0.805.5058...
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ORTHOPANTOMOGRAPH and CLINIVIEW are either registered trademarks or trademarks of PaloDEx Group Oy in the United States and/or other countries. KaVo is either a registered trademark or a trademark of Kaltenbach & Voigt GmbH in the United States and/or other countries.
Motor movements ..................7 Position detectors ..................7 Patient Positioning Lasers ................8 Mains power supply cable ................8 Mains power switch ..................8 Tubehead ...................... 8 Fire risk ......................8 Covers and Labels ..................8 1.7 Disposal ......................9 ORTHOPANTOMOGAPH OP 2D...
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3.2 L1200 CPU Board ..................31 L1200 - Location ..................31 L1200 - Field replaceable parts ..............31 L1200 - Description ..................32 L1200 - Indicator LEDs ................32 L1200 - Test Points ..................32 L1200 - Block Diagram ................33 ORTHOPANTOMOGAPH OP 2D...
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3.7 P1910, PFC Board ..................49 P1910 - Location ..................49 P1910 - Field replaceable parts ..............49 P1910 - Description ..................50 P1910 - Block diagram ................51 P1910 - Indicator LEDs ................52 P1910 - Test Points ..................52 ORTHOPANTOMOGAPH OP 2D...
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Filter - Test Points ..................62 4. Troubleshooting ....................63 4.1 Initial checks ....................63 Restarting the unit ..................63 Error Codes ....................63 Checking circuit boards ................63 Checking cables and connectors ..............64 Power supply problems ................64 VIII ORTHOPANTOMOGAPH OP 2D...
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Horizontal white stripes on the image ............79 Image too light or too dark ................79 Common causes for bad image quality ............80 5. S2terminal and service commands ............... 81 5.1 Using the S2terminal ................... 81 5.2 The Service commands................84 ORTHOPANTOMOGAPH OP 2D...
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8.5 Checking and adjusting the position of the collimator ........110 8.6 Checking and adjusting the Chin Support ..........113 8.7 Checking and adjusting the focal trough ............115 8.8 Recheck the alignment ................118 8.9 Aligning the Patient Positioning Lasers ............118 8.10 Calibrating the CCD sensor ..............118 ORTHOPANTOMOGAPH OP 2D...
When taking test exposures take adequate precautions to protect yourself from radiation. Stand behind a suit- able radiation shield positioned at least two metres (six feet) from the unit. ORTHOPANTOMOGAPH OP 2D...
This unit should be used only in areas that are provided with a protective earth connection to ensure an equipo- tential ground connection. ORTHOPANTOMOGAPH OP 2D...
If such chemicals are used the vapour should be allowed to disperse before switch- ing the unit on. Warning - Cleaning the unit Switch the unit off and disconnect it from the main power supply before cleaning or disinfecting the unit. ORTHOPANTOMOGAPH OP 2D...
No agent, distributor or other party is au- thorized to make any warranty or other liability on behalf of the manufacturer of the unit with respect to its prod- ucts. ORTHOPANTOMOGAPH OP 2D...
Check the feedback values from the DMM. The feedback values must be within the tolerance. Selected mA mAfb (V) Tolerance (V) ±0.15 (1.05 - 1.35) 1.58 ±0.15 (1.43 - 1.73) ±0.15 (1.85 - 2.15) ±0.15 (2.25 - 2.55) ORTHOPANTOMOGAPH OP 2D...
Commands (the calib command). 4. Exit the exp mode using command "q" 5. Set the next kV value with "setkv [xx]" and take a new exposure. Repeat the procedure for all of the values listed in table under step 3. ORTHOPANTOMOGAPH OP 2D...
Use service command optotest, see section 5.2 Ser- vice Commands, to check the rotating unit optosensors. Manually turn the rotating unit in one direction and then press return. Repeat for the other direction. ORTHOPANTOMOGAPH OP 2D...
PFC P1910 and EMC shield holes. Covers and Labels Check that all covers are correctly installed and in good condition. Also check that all the labels are attached to the unit and that they are all legible. ORTHOPANTOMOGAPH OP 2D...
- PBB Polybrominated biphenyls: none - PBDE polybrominated diphenyl ethers: none Other materials and substances in the unit, its spare parts and assemblies that could be hazardous and are non-environmentally friendly are: - Mineral oil: tubehead ORTHOPANTOMOGAPH OP 2D...
100 to 120 VAC or 220 to 240 VAC The unit is used with a PC in which CLINIVIEW™ or some other MDD approved dental imaging software are installed. For information on how to use the unit refer to the User Manual. ORTHOPANTOMOGAPH OP 2D...
Tubehead (3) + CCD sensor (4) = Rotating unit Vertical carriage Emergency stop button - Press to stop, rotate to release. On / off switch (rear of column) PC with MDD approved dental imaging software Ethernet cable ORTHOPANTOMOGAPH OP 2D...
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2. Unit Description Head support Midsagittal light Mirror Frankfort light and light positioning knob Focal trough positioning knob Patient support Focal trough light Patient support handles ORTHOPANTOMOGAPH OP 2D...
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Test key - operates the unit without x-rays Exposure values Service key Patient Name -key (visible only if patient name display is supported by the dental imaging software) Dose Area Product (DAP) Unit status indicator Segmented Panoramic program selection key ORTHOPANTOMOGAPH OP 2D...
The rotating unit, which comprises the tubehead and collimator and the CCD sensor, is attached to the un- derside of the upper shelf. The rotating unit rotates to take panoramic exposures (R-movement). ORTHOPANTOMOGAPH OP 2D...
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The chin rest supports the patients lower jaw and the two temple supports on the head support hold the up- per part of the patient's skull. There are three patient positioning lasers, midsagittal laser, Frankfort (horizontal) laser and Focal through light. ORTHOPANTOMOGAPH OP 2D...
The Z-Motor input voltage is always 230 VAC. The autotransformer is connected to L1600. Main fuses Two T-10A-H-250V. Dimensions 6.3x32mm / 1/4x1-1/4". UL approved. The main fuses are located below the main power sup- ply cable at the rear of the column. ORTHOPANTOMOGAPH OP 2D...
Z-motor L1600 must receive a control sig- nal from L1200 and a separate control (enable) signal from the Z-movement (up/down) keys. An emergency switch on the front of unit disables the Z- motor (Z-movement) and stepper motor (R-movement) when pressed. ORTHOPANTOMOGAPH OP 2D...
(Expsw) preheat is enabled (Preh). After 800ms the exposure will start (ExpEna). The tubehead will receive power from the Generator board and the Generator board will also start to regulate the mA and kV according to mA- and kV- feedback. ORTHOPANTOMOGAPH OP 2D...
CCD sensor. Derivation of several CCD clock signals from the TDI clock is done by the CCD sensor board. The CPU also controls the generator board supplying power to the tubehead. ORTHOPANTOMOGAPH OP 2D...
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(—kV/—mA/ —s) and an imaging program identifi er. After image data transfer the image capturing driver preprocesses the raw image and carries out dark cur- rent correction and gain correction (the pixels do not have equal characteristics). ORTHOPANTOMOGAPH OP 2D...
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2. Unit Description ORTHOPANTOMOGAPH OP 2D...
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 remove sensor outer cover (see section 7.1). ORTHOPANTOMOGAPH OP 2D...
L900 board. L900 board produces supply voltages +3.3V for the display and +15.8V for the display backlight. L900 - Indicator LEDs Colour Indicates green 3.3V OK green +15.8V OK green +5V OK L900 - Test Points None ORTHOPANTOMOGAPH OP 2D...
3. Circuit Boards - L1200 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 parts None. ORTHOPANTOMOGAPH OP 2D...
Full Duplex mode in use green +1.2V green +1.8V green green +3.3V TEST1 green Flashing = Core functioning TEST2 green Flashing = Firmware functioning TEST3 green Flashing = Not currently used L1200 - Test Points None ORTHOPANTOMOGAPH 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 replaceable parts None. ORTHOPANTOMOGAPH OP 2D...
P1910 measures mains voltage. This value is converted to frequency signal and is then transferred to L1500 board. On L1500 board the signal is converted to DC voltage. This DC voltage is measured by AD-converters on L1200 CPU board. 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). ORTHOPANTOMOGAPH OP 2D...
There are three SET signals, SET 100V, SET 115V and SET 230V that control what mains voltage goes to what input winding of the autotransformer. The auto transformer output voltage is always 230 VAC Also mains voltage to P1910 is routed via L1600 board. ORTHOPANTOMOGAPH OP 2D...
+5V normally, 0 ... +0.5V when emergency button pressed down ZDIR 0V driving up, +4.8V...+5V driving down +3V when up/down key pressed, 0V when not. ZACT* 0 ... +0.5 when up/down key pressed, otherwise close to +5V. ORTHOPANTOMOGAPH 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 replaceable parts None. ORTHOPANTOMOGAPH OP 2D...
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 board. L1700 - Indicator LEDs None. L1700 - Test Points Number Description Value ORTHOPANTOMOGAPH OP 2D...
When LED H1 goes out the capacitors are discharged. L1800 - Location In rotating unit on the tubehead side. To access remove the tubehead outer cover (see section 7.1). L1800 - Field replaceable parts None ORTHOPANTOMOGAPH OP 2D...
The P1910 PFC board supplies the L1800 generator board with 380VDC, 27.5VDC and 20VDC voltages. The generator board then produces its own supply voltages, for example the fi lament output voltage for the tubehead, utilizing these input voltages. ORTHOPANTOMOGAPH OP 2D...
Counted from value 1V=22kV TP15 EXPENA on to enable off to disable TP16 MAFB_INT 0.2V=1mA TP17 TP18 mAfb 0.2V=1mA TP19 Tubeheat TP20 J2 closed=25V (default); J2 open=20.7V TP21 NOT USED TP22 HVGND Mains voltage side, ground TP23 HV310 +380V (HVGND) ORTHOPANTOMOGAPH OP 2D...
After switching the unit off wait 10 min- utes for the capacitors to discharge. Ensure also that the indicator LED A5 is OFF. P1910 - Field replaceable parts Fuse FH2: SIBA FF6.3A 70 125 40. 6.3A ORTHOPANTOMOGAPH OP 2D...
(PFC) it supplies voltages +380VDC and +17VDC (against HVGND) it supplies voltages +27.5VDC, -15VDC and -20VDC (against GND) it monitors the line voltage (FMON) and PFC middle circuit voltage (PWR_OK) ORTHOPANTOMOGAPH OP 2D...
3. Circuit Boards - P1910 P1910 - Indicator LEDs Colour Indicates green +380V green +27V5 green +20V green 17V_HVGND green -15V P1910 - Test Points None ORTHOPANTOMOGAPH OP 2D...
L2000 - Field replaceable parts None. L2000 - Description L2000 serves as an external interface to the outside environment. The exposure button and the remote ex- posure button are connected to this board. ORTHOPANTOMOGAPH OP 2D...
L2100 includes a transmitter LED, and a receiver, or base. The sensor signals remain on as long as the base receives light from the LED. When the light to the base is cut off by the positioning rail, the sensor signal is switched off. ORTHOPANTOMOGAPH OP 2D...
R5100 - Field replaceable parts None. R5100 - Description R5100 controls the 3-phase stepper motor that drives the Rotating Unit. The board receives in three control signals: clk, dir, and ena. It produces phase voltages for the stepper motor windings. ORTHOPANTOMOGAPH OP 2D...
0.97V ±0.1V; when HICUR* = '1' 1.95V ±0.1V; when HICUR* = '0' (default value) +5V freq <15kHz +5V active, 0V idle +5V when idle or when moving to the PIO position. 0V when driving to end position. PGND ORTHOPANTOMOGAPH OP 2D...
CCD sensor converts X-ray radiation to visible light and and then the CCD semiconductor chips measure the intensity of the visible light. The analog signal is A/D- converted and sent in parallel data lines to the CPU board. ORTHOPANTOMOGAPH OP 2D...
+3.3V between +3.0 and +3.6V. +1.8V between +1.71V and +1.89V. On when +3.3V and 1.8V are within limits. Yellow Analog +5V LED. Supply voltage for AD-converters. LIMITS: between +4.5V and +5.5V. On when +5V is within limits. ORTHOPANTOMOGAPH OP 2D...
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In position but not yet ready, SW is being loaded. Red fl ashing Fatal SW error / communication routine failure after an image has been taken. If this happens, switch the unit off for 30 seconds and then switch the unit on again. ORTHOPANTOMOGAPH OP 2D...
Filter - Field replaceable parts None. Filter - Description Sensor fi lter board is a low pass type RF-fi lter board which fi lters electromagnetic interference (EMI) from all CCD-signal and and power supply lines. Filter - Test Points None. ORTHOPANTOMOGAPH OP 2D...
There are also test pins (TP), that allow the operation of the board to be checked. LED and test pin descrip- tions for each circuit board are in the section 3 Circuit Boards. Use a digital multimeter (DMM) when checking boards. ORTHOPANTOMOGAPH OP 2D...
If there is damage, replace the cable and/or the board that has been damaged. Power supply problems Power supply problems are described in section - 4.2 Common issues. ORTHOPANTOMOGAPH OP 2D...
Also check the condition of the on/off switch and the mains fi lter on the main power and interface panel and replace them if they are faulty. If the cables, switch and fi lter are okay, replace L1600. ORTHOPANTOMOGAPH OP 2D...
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Check that LEDs H1 and H2 are on (green). Also check that the H3 LED is on (green) indicating that the +5V is supplied by the L1200 (CPU board). If LEDs H1 and H2 are not on, replace L900. ORTHOPANTOMOGAPH OP 2D...
The Membrane key panel is faulty. SOLUTION B Press some of the other keys to see if they work cor- rectly. If they do it indicates that the return membrane key is faulty and the membrane key panel must be replaced. ORTHOPANTOMOGAPH OP 2D...
The emergency stop button has been pressed down. The emergency stop icon appears on main display. NOTICE! LED D4 (ESTOP on) on L1600 will come on when the emergency switch is pressed down. SOLUTION A Turn the emergency switch clockwise to release it. ORTHOPANTOMOGAPH OP 2D...
If after replacing fuse F2 lamp LA1 comes on but LED D1 still does not come on,check cables between L1600 and L1700. If the cables are OK, check if D12 is on on L1500. If it's not, replace L1500. ORTHOPANTOMOGAPH OP 2D...
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The autotransformer internal thermal switch has opened. The thermal switch will open if the winding temperature goes over 110°C. SOLUTION E There is a probably a short circuit inside the transformer winding that has caused it to overheat. Replace the transformer. ORTHOPANTOMOGAPH OP 2D...
CAUSE B The exposure button failed while it was being pressed during an exposure. SOLUTION B Take a test exposure to see if the same error code ap- pears again. If it does, replace the exposure button. ORTHOPANTOMOGAPH OP 2D...
If the "actual" values differ by less that ±2kV from the target values, the tubehead is working correctly. If the "actual" values differ by more than ±2kV from the target values, it indicates that there is a problem and the tubehead must be recalibrated. ORTHOPANTOMOGAPH OP 2D...
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The values for feedback signals can be counted as de- scribed in chapter 3.6 L1800, Generator Board - Test points. The values for the feedback signals should be within the limits as described in the chapter 1.7 Yearly Main- tenance. ORTHOPANTOMOGAPH OP 2D...
CAUSE B The tube heat signal is missing. SOLUTION B If the error message never clears check the path of the tube heat signal. The tubehead and/or the generator board may be faulty and must be replaced. ORTHOPANTOMOGAPH OP 2D...
L1700 to L2100 is defective. If L2100 is functioning correctly it indicates that there is a problem with the stepper motor. Check if R5100, the stepper motor or cable from R5100 to the stepper motor are faulty. Replace any that are. ORTHOPANTOMOGAPH OP 2D...
LEDs. Always measure the voltages from the test points. Note that the voltages are only enabled during an exposure. To enable the CCD voltages without tak- ing an exposure, connect a jumper to J23. Remove the the jumper after taking measurements. ORTHOPANTOMOGAPH OP 2D...
SW has detected that the tubehead is not connected or is not able to read the thermal sensor status. SOLUTION Check the tube head connections. Error E16 (Z lift not allowed due to duty cycle) CAUSE Z-motor over heated. SOLUTION Allow motor to cool down. ORTHOPANTOMOGAPH OP 2D...
SOLUTION Switch the unit off and check that the exposure switch is not stuck in the exposure position. Switch the unit on again. If the message reappears, the exposure switch is faulty and needs to be replaced. ORTHOPANTOMOGAPH OP 2D...
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 ORTHOPANTOMOGAPH OP 2D...
For information on how to align the unit refer to the In- stallation and set-up manual. The CCD sensor is not calibrated Calibrate the CCD. Refer to the section Calibrating the CCD sensor in the installation manual. ORTHOPANTOMOGAPH OP 2D...
GUI. _________________________________________________________________ s2terminal 194.9.227.251 _________________________________________________________________ Press ENTER to open the s2terminal and make a connection to the unit. 7. To enter the SERVICE state key in "s" and press ENTER. _________________________________________________________________ _________________________________________________________________ ORTHOPANTOMOGAPH OP 2D...
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(and MAC accordingly) stillmode still image exposure mode warmup tubehead warmup before fi rst use ------------------------------------------------------------------------------------------------------------- _________________________________________________________________ > _________________________________________________________________ ORTHOPANTOMOGAPH OP 2D...
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10. To display information about an individual command key in help cmd, where cmd is the command name in question. _____________________________________ >help cmd _____________________________________ 11. To exit the service terminal, key in quit. _____________________________________ >quit _____________________________________ Then press Enter. ORTHOPANTOMOGAPH OP 2D...
If this happens repeat the calibration (calib) procedure. If the calibration procedure is still not successful after repeating the procedure two or three times there is a hardware problem. See error codes E0, E1 and E2. ORTHOPANTOMOGAPH OP 2D...
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X-rays shall be disabled and unit shall be in ready state even without computer. This is for exhibition use. display display power level (<value>) Sets the power level of the display. Upper or lower case text can be used. NORMAL HIGH ORTHOPANTOMOGAPH OP 2D...
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The kV value used for the exposure will be the one selected before entering the service mode. The kV value cannot be changed while the unit is in the service mode. If you wish to change the kV, you must exit the service mode. ORTHOPANTOMOGAPH OP 2D...
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See the section "Calibrating the CCD sensor" in the installation manual. confi gure ip address Displays the current IP address of the unit. To change the IP address enter the new one, ____________________________________________ > ip aaa.bbb.ccc.ddd (the new IP address) ____________________________________________ and then press Enter. ORTHOPANTOMOGAPH OP 2D...
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Allows a short note to be added to a log entry. Add the note, ____________________________________________ > logsign Note ..____________________________________________ and then press Enter. The note will appear in the log. print mac address Displays the current MAC address of the unit. ORTHOPANTOMOGAPH OP 2D...
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2 sector 3 ____________________________________________ which indicates that the optosensors on the L2100 board are working and that the board is functioning cor- rectly. If the values do not change, the L2100 board or the cabling is faulty. ORTHOPANTOMOGAPH OP 2D...
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Reboots the unit. restore restore factory confi guration Restores the confi guration settings to the default factory settings. You must key in restore confi guration. ____________________________________________ > restore confi guration ____________________________________________ and then press Enter. ORTHOPANTOMOGAPH OP 2D...
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CAUTION: Protect yourself from radiation when carrying out this procedure. Press and hold the exposure switch until the procedure is complete. The procedure may take some minutes. ORTHOPANTOMOGAPH OP 2D...
6. After the fi les have been updated the unit will restart automatically. Wait for the restart to complete. 7. Switch the unit OFF. 8. Wait for 30 seconds and switch the unit ON again. ORTHOPANTOMOGAPH OP 2D...
7. Replacing parts 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. ORTHOPANTOMOGAPH OP 2D...
Tubehead label Replacing the tubehead 1. Switch the unit off and disconnect it from the main power supply. 2. Remove the tubehead inner cover and the tubehead outer cover from the tubehead side of the rotating unit. ORTHOPANTOMOGAPH OP 2D...
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7. Replacing parts 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 tubehead. ORTHOPANTOMOGAPH OP 2D...
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NOTICE! The markings do not guarantee that the unit alignment remains the same, but they ease the alignment adjustment work required after the tubehead replacement. 9. Reconnect all the cables. ORTHOPANTOMOGAPH OP 2D...
2. Remove the appropriate cover(s) so that you can access the circuit board you wish to re- place. 3. Disconnect all the cables from the circuit board, remove the board and install the new one. ORTHOPANTOMOGAPH OP 2D...
- calib Refer to section 5. S2terminal and Service Functions. L1700 Connector board - additional instructions After replacing the board use the s2terminal to recali- brate the unit: - calib Refer to section 5. S2terminal and Service Functions. ORTHOPANTOMOGAPH OP 2D...
Refer to section 5. S2terminal and service com- mands. L1910 PFC board - additional instructions After replacing the board use the s2terminal to recali- brate the unit. - mainscalib Refer to section 5. S2terminal and Service Functions. ORTHOPANTOMOGAPH OP 2D...
Remove the screws (2 x 2) that hold the two Side Covers, B, to the bottom of the column and remove the Side Covers. ORTHOPANTOMOGAPH OP 2D...
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4. CAUTION: HEAVY OBJECT; THE FOLLOW- ING TASK REQUIRES TWO PEOPLE. Place some soft material on the ground so that the rotating unit will not be damaged when it is removed from the upper shelf and placed on the ground. ORTHOPANTOMOGAPH OP 2D...
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6. Loosen the nuts (4) that hold the column upper front plate in position. There are two at the top of the front plate and two at the bottom. ORTHOPANTOMOGAPH OP 2D...
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7. Replacing parts 7. Carefully slide the column upper front plate off of the column. Be careful not to damage the surface fi nish. ORTHOPANTOMOGAPH OP 2D...
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9. Remove the terminal plate from the column assemble (2 screws) and then disconnect the motor power supply cables from the terminal block and the ground cable from the motor. ORTHOPANTOMOGAPH OP 2D...
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12. Reattach the unit to the wall or exhibition stand and then reinstall the rotating unit. 13. Level the unit and check the alignment as de- scribed in the installation manual. ORTHOPANTOMOGAPH OP 2D...
3. PC: Enable image capture for still mode im- age. Still mode can be selected using the s2termi- nal or through the GUI of the unit. 4. Protect yourself from radiation. Press and hold down the exposure button to take an exposure. ORTHOPANTOMOGAPH OP 2D...
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8.4 Adjusting the vertical position of the beam. If the CCD aperture (gray area) is not vertical, the CCD sensor must be rotated slightly until it is vertical. ORTHOPANTOMOGAPH OP 2D...
If the bottom edge of the beam (black line) is not between 0.1 and 2 mm from the bottom edge of the still mode image, then the height of the beam must be adjusted. This can be done by adjusting the height of the collimator. ORTHOPANTOMOGAPH OP 2D...
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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 mode im- age. Still mode can be selected using the s2termi- nal or through the GUI of the unit. ORTHOPANTOMOGAPH OP 2D...
2. Attach the alignment cone assembly to the chin support. 3. PC: Enable image capture for still mode im- age. Still mode can be selected using the s2termi- nal or through the GUI of the unit. ORTHOPANTOMOGAPH OP 2D...
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If the white section in the "tubehead on right" image is greater than the white section in the "tubehead on left" image, the collimator must be moved to the right (turn the collimator ad- justing screw clockwise). ORTHOPANTOMOGAPH OP 2D...
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(1) on the right-hand side. 8. Recheck the position of the collimator and readjust if necessary. 9. Remove the hexagon socket wrench from the locking hole when you have completed this adjustment. ORTHOPANTOMOGAPH OP 2D...
Insert a 4mm hexa- gon socket wrench into the locking hole in the guide pin assembly to hold the rotating unit in position. ORTHOPANTOMOGAPH OP 2D...
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(on the underside of the chin support) and adjust accordingly. IMPORTANT NOTICE! Check and if necessary adjust the position of the midsagittal light if you adjust the position of the chin support. ORTHOPANTOMOGAPH OP 2D...
(t/h) is on the right. Insert a 4 mm hexagon socket wrench into the locking hole in the guide pin assembly to hold the Rotating Unit in position. ORTHOPANTOMOGAPH OP 2D...
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Turn the adjusting screw to move the Rotating Unit backwards or forwards. Counter clockwise will move the Rotating Unit towards the column and clockwise away from After the adjustment, tighten the nuts holding the guide pin assembly. ORTHOPANTOMOGAPH OP 2D...
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Loosen the nuts that hold the guide pin as- sembly before turning the adjusting screw and re-tighten them before taking exposure. Repeat this procedure until the middle ball is round according to the tolerance. ORTHOPANTOMOGAPH OP 2D...
4. Protect yourself from radiation, and take an exposure. 5. Examine the image. It should be evenly grey all over with no granularity nor horizontal lines/ stripes. If the image is not evenly grey repeat the calibration until it is. ORTHOPANTOMOGAPH OP 2D...
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