DENTAL X-RAY Service Manual
Contents
1. 20 4 27 Film number and exposure time for short cone 7 mA 70 20 4 2 8 Film number and exposure time for long cone 7 mA 70 21 4 2 9 Sensor sensitivity number and exposure time for short cone 4mA 60kV 21 4 2 10 Sensor sensitivity number and exposure time for long cone AmA 60kV 22 4 2 11 Sensor sensitivity number and exposure time for short cone 7mA 60 kV 22 4 2 12 Sensor sensitivity number and exposure time for long cone 7mA 60kV 23 4 2 13 Sensor sensitivity number and exposure time for short cone 4mA 70 23 4 2 14 Sensor sensitivity number and exposure time for long cone AmA 70kV 24 4 2 15 Sensor sensitivity number and exposure time for short cone 7mA 70 kV 24 4 2 16 Sensor sensitivity number and exposure time for long cone 7mA 70 25T 5 7 Parts replacement 26 MEI 8 26 POWEE PC Tcp 27 Adjustment required after parts are replaced Following two kind of adjustments are necessary if head or PC board is replaced Replaced part Head Timer PC Power PC Filter PC Adjustment board board board Change the CP value as indicated on the head Not Not yoke Necessary Necessary Necessa R2. If the same symptom appears the cause of the error is presumed to lie in the power PC board In this case replace the power PC board If the exposure turns out to be normal the cause is presumed to lie in the head 2 15 Error Code E 16 Meaning Tube voltage during exposure dropped to less than 40 kV when 60 kV 15 set or less than 50 kV when 70 kV 18 set release Turn off the main power switch and confirm all displays go off Then turn on again Verification The arm cable main output line may be broken Disconnect the arm cable from the head 10P connector and the power PC board 2P connector and check continuity of the cable 1 between 10 head side and 1 power PC board side 2 between 5 head side and 2 power PC board side Solution Replace the arm in question horizontal or balance arm if any failure is found If not resolved Possible cause 1 The arm cable tube voltage feedback line is broken Verification Disconnect the arm cable from the head 10P connector and the power PC board 8P connector and check continuity between 7 head side and 6 power PC board side Solution Replace the arm in question horizontal or balance arm if any failure is found Possible cause 2 The power PC board or the head is out of order Verification Replace the head and check whether the same symptom Error code E 16 appears ag
3. Replace the fuse if it has been blown If not resolved Possible cause 1 12 The communication cable power line is broken If the fuse blows again when fuse is replaced no break exists in the communication cable Verification Check continuity of the 1 and 4 wires of the communication cable Solution Replace the communication cable if any failure is found Possible cause 2 The power supply circuit on the timer PC board is out of order Solution Replace the timer PC board Possible cause 3 The control power supply circuit on the power PC board is out of order Solution Replace the power PC board Sympto Exposure can not be made although the ready light is on Verification Remove the exposure switch and the hand switch from the PC board and check continuity of the cables Pay special attention to the cord bush and connectors Solution Replace the exposure switch or the hand switch if any failure is found If not resolved Possible cause 1 The communication cable exposure signal line is broken Verification Check continuity of the 3 wire of the communication cable Solution Replace the communication cable Possible cause 2 The exposure switch circuit on the timer PC board is out of order Solution Replace the timer PC board Possible cause 3 The exposure switch circuit o
4. 400 0 01 0 01 0 02 0 02 0 03 0 03 0 03 0 04 0 03 0 04 0 05 0 06 0 08 0 06 0 06 0 08 0 10 0 13 0 04 0 05 0 06 0 06 0 10 0 06 0 08 0 10 0 13 0 16 408 0 06 0 08 0 10 0 10 0 16 0 10 0 13 0 16 0 20 0 25 0 05 0 06 0 08 0 08 0 13 0 08 0 10 0 13 0 13 0 20 409 0 08 0 10 0 13 0 13 0 20 0 13 0 16 0 20 0 25 0 32 a11 0 13 0 16 0 20 0 20 0 32 0 20 0 25 0 32 0 32 0 50 0 32 0 40 0 50 0 50 0 80 Unit seconds 25 5 Parts replacement 5 1 Head 1 Turn off the main power switch on the front panel of PHOT X 2 Close the balance arm and secure it with a strong string The balance arm is spring loaded and it can pop out and cause injury when the Arm x ray head is removed Fig 1 Holding 3 Remove the screw and yoke cover Fig 2 anng 4 Remove the two M5 screws which secure the ground wires and nylon clamp Disconnect the 10P connector in the yoke Fig 3 s Adhesive tape Fig 2 Fig 5 Remove the screw which secures the arm collar Slide the arm collar Head upward and temporarily hold it in position with adhesive tape Fig 1 Key and 4 6 Take out the head key U shaped key and remove the x ray head from the arm Fig 4 7 Remove the yoke cover from the new x ray head and insert the shaft of the balance arm into the yoke of the new
5. Keep holding down the exposure switch and check that the T5 light is on and the indication of the seven segment LED Refer to section 3 5 If not resolved If seven segment LED displays not more than 1 9 mA when 4 mA is set or 3 4 mA when 7 mA is set increase the setting value for h XX Possible cause 1 The arm cable power line for filament of x ray tube is broken Verification Disconnect the arm cable from the head 10P connector and the power PC board 8P connector and check continuity of the cable 1 between 4 head side and 4 power PC board side 2 between 8 head side and 7 power PC board side 3 between 9 head side and 8 power PC board side Solution Replace the arm in question horizontal or balance arm if any failure is found Possible cause 2 The arm cable tube current feedback line is broken Verification Disconnect the arm cable from the head 10P connector and the power PC board 8P connector and check continuity of 1 head side and 2 power PC board side Solution m Replace the arm in question horizontal balance arm if any failure is found Possible cause 3 If seven segment LED displays not more than 1 mA the power PC board or the head is out of order Solution 1 Both the power PC board and x ray head should be changed if the manufactured date is Oct 2005 or earlier 2 X ray head should be changed if
6. 5 T2 13 4 75 72 73 74 15 400 001 001 001 001 001 0 02 0 02 0 01 0 01 0 02 0 02 0 03 1001 0 01 0 02 0 01 0 01 0 02 0 02 0 03 0 02 0 02 0 02 0 02 0 04 0 01 0 01 0 01 0 02 0 01 0 02 0 02 0 02 0 04 0 02 0 02 0 03 0 03 0 04 0 01 0 01 0 02 0 02 0 03 0 02 0 02 0 03 0 03 0 04 0 02 0 03 0 03 0 04 0 05 0 01 0 02 0 02 0 02 0 03 0 02 0 03 0 03 0 04 0 06 0 03 0 03 0 04 0 05 0 08 0 04 0 04 0 05 0 06 0 08 406 0 02 0 05 0 05 0 06 0 08 0 10 0 03 0 06 0 06 0 08 0 10 0 13 0 03 0 08 0 08 0 10 0 13 0 16 409 0 04 0 08 0 10 0 13 0 16 0 20 0 05 0 10 0 13 0 16 0 20 0 25 0 06 0 13 0 16 0 20 0 25 0 32 0 08 0 16 0 20 0 25 0 32 0 40 4 13 010 0 13 0 16 0 16 0 25 0 16 0 20 0 25 0 32 0 40 0 20 0 25 0 32 0 32 0 50 4 14 0 13 0 16 0 20 0 20 0 32 0 20 0 25 0 32 0 32 0 50 0 25 0 32 0 40 0 40 0 63 415 016 0 20 0 25 0 25 0 40 0 25 0 32 0 40 040 0 63 0 32 0 40 0 50 0 50 0 80 Unit seconds 22 4 2 12 Sensor sensitivity number and exposure time digital mode for long 7 mA 60 Large Adult Tl T2 T3 4 T5 0 04 0 05 0 05 0 08 0 05 0 06 0 06 0 10 0 06 0 08 0 08 0 13 0 08 0 08 0 10 0 16 0 10 0 10
7. I2HOT X II MODEL 303 DENTAL X HAY Service Manual Ver 1 D 1 Adjustments required after parts 2l Error CDU RR 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 20 2 21 3 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 00 Error Code 01 4 Error Code 025224 4 Error Code E 03 AERAR Error Code EOS Error Code UAI sa Error Code 08 Error Code 09 Error Code E 10 Error Code E 11 Error Code E 12 4 4 5 5 6 6 Error Code EOT eie 8 8 9 9 9 9 Error Cod UN E 4204 derectssevesseccevecssascvecsescevestsevevedsustetadstavevedsvsteress Error Code 5 Error Code E 16 10 Error Code E 17 11 Error Code E 19 11 Error Code E 20 11 Error Code E 22 12 Error Code E 23 12 12 Seltine MO cos oot Film type digital mode and priority selection eee ee eese ees 13 Tube current adjustment value d Tube voltage adjustment va
8. 0 13 0 20 0 13 0 13 0 16 0 25 0 16 0 16 0 20 0 32 0 20 0 20 0 25 0 40 0 25 0 25 0 32 0 50 0 10 0 13 0 16 0 20 0 25 0 20 0 25 0 25 0 32 0 50 0 25 0 32 0 32 0 40 0 63 410 0 13 0 16 0 20 0 25 0 32 0 25 0 32 0 32 0 40 0 63 0 32 0 32 0 40 0 50 0 80 4 11 0 16 0 20 0 25 0 32 0 40 0 32 0 32 0 40 0 50 0 80 0 40 0 40 0 50 0 63 0 80 12 0 20 0 25 0 32 0 40 0 50 0 40 0 40 0 50 0 63 0 80 0 50 0 50 0 63 0 80 1 00 4 13 0 25 0 32 0 40 0 50 0 63 0 50 0 50 0 63 0 80 1 00 0 63 0 63 0 80 1 00 1 25 4 14 0 32 0 40 0 50 0 63 0 80 0 63 0 63 0 80 1 00 1 25 0 80 0 80 1 00 1 25 1 60 4 15 0 40 0 50 0 63 0 80 1 00 0 80 0 80 1 00 1 25 1 60 Patient Children Teeth TI T2 T3 T4 5 0 02 0 02 0 02 0 03 0 04 d 01 d 02 d 03 d 04 d 05 d 07 d 08 Unit seconds 4 2 13 Sensor sensitivity number and exposure time in digital mode for short 4 70 Large Adult Patient Children Teeth T1 T2 T4 Tl T2 T4 TS 0 01 0 01 0 01 0 02 0 02 0 02 0 04 9 01 0 01 0 01 0 01 0 01 0 02 0 02 0 02 0 02 0 02 0 04 0 02 0 02 0 03 0 03 0 05 4 02 0 01 0 01 0 02 0 02 0 03 0 02 0 02 0 03 0 03 0 04 0 02 0 03 0 03 0 04
9. represents the version number of the program 3 Operation and display time you press the A button the display on the seven segment LED will change in the order as below and allow you to check the settings For t XX the tube current light blinks For d XX and the tube voltage light blinks The same applies to the teeth light for and both tube voltage light and the tube current light for h XX gt 00 00 00 2 pox 000 000 000 00 00 DUX 00 gt 00 DUX 00 Pressing the V button reverses the direction of the display This mode only allows viewing the settings and does not allow any changes Exposure time 4 1 Assignable exposure time 0 01 0 02 0 03 0 04 0 05 0 06 0 08 0 10 0 13 1 60 2 00 4 2 Exposure time in the automatic setting mode in the table denotes that a tube current setting is automatically switched and set at the most 0 16 0 20 0 25 2 50 320 appropriate time 4 2 1 Film number and exposure time in film mode for short 4 mA 60 0 05 0 06 0 08 0 08 0 13 0 10 0 13 0 16 0 16 025 0 06 0 08 0 08 0 10 0 16 0 13 0 16 0 20 0 20 0 32 0 16 0 16 0 20 0 25 0 32 0 32 0 40 0 40 0 50 0 80 0 20 0 20 0 25 0 32 0 40 0 40 0 50
10. 01 0 02 0 02 0 02 0 03 9 03 001 0 01 0 01 0 02 0 01 0 02 0 02 0 02 0 03 0 02 0 02 0 02 0 03 0 04 0 01 0 01 0 01 0 02 0 02 0 02 0 02 0 02 0 03 0 04 0 02 0 02 0 03 0 03 0 05 0 01 0 02 0 02 0 02 0 03 0 02 0 03 0 03 0 03 0 05 0 03 0 03 0 04 0 04 0 06 406 0 02 0 02 0 02 0 03 0 04 0 03 0 03 0 04 0 04 0 06 0 03 0 04 0 05 0 05 0 08 0 02 0 02 0 03 0 03 0 05 0 03 0 04 0 05 0 05 0 08 0 02 0 03 0 04 0 04 0 06 0 04 0 05 0 06 0 06 0 10 409 0 03 0 04 0 04 0 05 0 08 0 05 0 06 0 08 0 08 0 13 0 06 0 08 0 10 0 10 0 16 0 04 0 05 0 05 0 06 0 10 0 06 0 08 0 10 0 10 0 16 0 08 0 10 0 10 0 13 0 20 1 0 05 0 06 0 06 0 08 0 10 0 08 0 10 0 10 0 13 020 0 10 0 13 0 13 0 16 0 25 412 0 06 0 08 0 08 0 10 0 13 0 10 0 13 0 13 0 16 0 25 0 13 0 16 0 16 0 20 0 32 413 0 08 0 08 0 10 0 13 0 16 0 13 0 16 0 16 0 20 0 32 0 16 0 20 0 20 0 25 0 40 0 10 010 0 13 0 16 0 20 0 16 0 20 0 20 0 25 0 40 0 20 0 25 0 25 0 32 0 50 0 13 0 13 0 16 0 20 0 25 0 20 0 25 0 25 0 32 0 50 0 25 0 32 0 32 0 40 0 63 Unit seconds 24 4 2 16 Sensor sensitivity number and exposure time in digital mode for long 7 70
11. Unit seconds 4 2 7 Film number and exposure time in film mode for short cone 7 mA 70 Patient Children Large Adult Teeth T1 72 T3 74 75 T2 T3 4 F 00 0 01 0 02 0 02 0 03 F 01 001 0 01 0 01 0 02 0 02 0 02 0 02 0 02 0 03 0 04 0 02 0 03 0 03 0 04 0 05 F 02 0 01 0 02 0 02 0 02 0 03 0 02 0 03 0 03 0 03 0 05 0 03 0 03 0 04 0 04 0 06 F 03 0 02 0 02 0 02 0 03 0 04 0 03 0 03 0 04 0 04 0 06 0 03 0 04 0 05 0 05 0 08 F 04 0 02 0 02 0 03 0 03 0 05 0 03 0 04 0 05 0 06 0 08 0 04 0 05 0 06 0 06 010 F 05 0 03 0 03 0 04 0 04 0 06 0 04 0 05 0 06 0 06 0 10 0 05 0 06 0 08 0 08 0413 F 06 0 03 0 04 0 04 0 05 0 08 0 05 0 06 0 08 0 08 0 13 0 06 0 08 0 10 0 10 0 16 F 07 0 04 0 05 0 06 0 06 0 10 0 06 0 08 0 10 0 10 0 16 0 08 0 10 0 13 0 13 0 20 F 08 0 05 0 06 0 08 0 08 0 13 0 08 0 10 0 13 0 13 0 20 0 10 0 13 0 16 0 16 0 25 F 09 0 06 0 08 0 08 0 10 0 16 0 10 0 13 0 16 0 16 0 25 0 13 0 16 0 20 0 20 0 32 F 10 0 08 0 10 0 10 0 13 0 20 0 13 0 16 0 20 0 20 0 32 0 16 0 20 0 25 0 25 0 40 F 11 0 10 0 10 0 13 0 16 0 25 0 16 0 20 0 25 0 25 0 40 0 20 0 25 0 25 0 32 0 50 F 12 0 13 0 13 0 16 0 20 0 32 0 20 0 25 0 25 0 32 0 50 0 25
12. sounds and the automatic lock setting is stored Factory default 15 AL O 3 8 Setting the standard density value for each tooth 1 To enter the mode Hold down the T1 and T5 buttons for approximately three seconds 2 The status when you enter the mode ready light blinks lights for patient cone tube voltage tube current exposure film and digital mode are off 1 of the teeth light is on The seven segment LED displays b XX represents the standard value for density held at the time 3 Operation and display Press the A V button to increase decrease the standard density value displayed on the seven segment LED Select the value you want and then press another teeth button Then the standard density value of the teeth is displayed on the seven segment LED Change the value to the one you want as well The change will be temporarily held until you exit this setting mode G Press the patient selection button for approximately one second after completing the change of all standard density values alarm sounds and the values are stored 3 9 Viewing the setting 1 To enter this mode Hold down the T5 buttons and the cone button for approximately three seconds 2 The status when you enter the mode The ready light blinks lights for teeth patient cone tube voltage tube current exposure film and 16 digital mode are off The seven segment LED displays PX X
13. the tube voltage light to 70 kV and the tube current selection button to 7 mA Follow the same process as above and the preheating power setting value for 60kV 7mA 70kV 4mA and 70kV 7mA can be stored 3 6 Automatic adjustment of preheating power 1 To enter the mode Hold down the T1 T4 and T5 buttons for approximately three seconds 2 The status when you enter the mode The ready light is on lights for teeth patient cone exposure film and digital mode are off Q For the tube voltage light 60 kV is on For the tube current light 4 mA blinks for approximately three seconds and then comes on Q h XX blinks on the seven segment LED simultaneously with the and then 0 01 is displayed 3 Operation and display Press the exposure switch to make an x radiation for 0 01 seconds If the tube current at initial rise falls 15 within the prescribed range specified 2 is stored as the preheating power setting value for 60 kV 4 mA and you will be directed to the adjustment of 60 kV 7 mA If it falls outside the range new h value is displayed and exposure at 60 4 mA shall be conducted again If the exposure at h 1F or the highest value is conducted but falls outside the range is stored and you will also be directed to the adjustment of 60 kV 7 mA The interval before the next exposure is 10 seconds During this period the ready light goes off and the h value as the condit
14. 0 06 d 03 0 01 0 02 0 02 0 02 0 03 0 02 0 03 0 03 0 04 0 05 0 03 0 03 0 04 0 05 0 06 4 04 0 02 0 02 0 03 0 03 0 04 0 03 0 03 0 04 0 05 0 08 0 04 0 04 0 05 0 06 0 08 d 05 0 02 0 03 0 03 0 04 0 05 0 04 0 04 0 05 0 06 0 08 0 05 0 06 0 06 0 08 0 10 0 03 0 03 0 04 0 04 0 06 0 05 0 05 0 06 0 08 0 10 0 06 0 06 0 08 0 10 0 13 d 07 0 03 0 04 0 05 0 06 0 08 0 06 0 06 0 08 0 10 0 13 0 06 0 08 0 10 0 13 0 16 d 08 0 04 0 05 0 06 0 08 0 10 0 08 0 08 0 10 0 13 0 16 0 08 0 10 0 13 0 16 0 20 0 05 0 06 0 08 0 08 0 13 0 08 0 10 0 13 0 16 0 20 0 10 0 13 0 16 0 20 0 25 d 10 0 06 0 08 0 10 0 10 0 16 0 10 0 13 0 16 0 20 0 25 0 13 0 16 0 20 0 25 0 32 11 0 08 0 10 0 13 0 13 0 20 0 13 0 16 0 20 0 25 0 32 0 16 0 20 0 25 0 32 0 40 12 0 10 0 13 0 16 0 16 0 25 0 16 0 20 0 25 0 32 0 40 0 20 0 25 0 32 0 32 0 50 d 13 0 13 0 16 0 20 0 20 0 32 0 20 0 25 0 32 0 32 0 50 0 25 0 32 0 40 0 40 0 63 4 14 0 16 0 20 0 25 0 25 0 40 0 25 0 32 0 40 0 40 0 63 0 32 0 40 0 50 0 50 0 80 4 15 0 20 0 25 0 32 0 32 0 50 0 32 0 40 0 50 0 50 0 80 0 40 0 50 0 63 0 63 1 00 Unit seconds
15. 0 32 0 32 0 40 0 63 F 13 0 16 0 16 0 20 0 25 0 32 0 25 0 32 0 32 0 40 0 63 0 32 0 40 0 40 0 50 0 80 14 0 20 0 20 0 25 0 32 0 40 0 32 0 40 0 40 0 50 0 80 0 40 0 50 0 50 0 63 1 00 15 0 25 0 25 0 32 0 40 0 50 0 40 0 50 0 50 0 63 1 00 0 50 0 63 0 63 0 80 1 25 Unit seconds T2 T3 74 5 20 4 2 8 Film number and exposure time film mode for long 7 mA 70 0 02 0 03 0 03 0 04 0 05 0 05 0 06 0 08 0 06 0 08 0 10 0 08 0 10 0 13 0 10 0 13 0 13 0 13 0 16 0 20 5 05 0 06 0 08 0 10 0 10 0 16 0 10 0 13 0 16 0 20 0 25 F 06 0 08 0 10 0 13 0 13 0 20 0 13 0 16 0 20 0 25 0 32 F 08 0 13 0 16 0 20 0 20 0 32 0 20 0 25 0 32 0 40 0 50 0 16 0 20 0 25 0 25 0 40 0 25 0 32 0 40 0 50 0 63 0 25 0 32 0 40 0 40 0 63 0 40 0 50 0 63 0 63 1 00 0 32 0 40 0 50 0 50 0 80 0 50 0 63 0 80 0 80 1 25 0 40 0 50 0 63 0 63 1 00 0 63 0 80 1 00 1 00 1 60 0 50 0 63 0 80 0 80 1 25 0 80 1 00 1 25 125 2 00 5 0 63 0 80 1 00 1 00 1 60 1 00 1 25 1 60 1 60 2 50 07 0 10 0 13 0 16 0 16 0 25 0 16 0 20 0 25 0 32 0 40 Unit seconds 4 2 9 Sensor sensitivity number
16. 0 50 5 Adult 0 03 0 02 0 02 0 03 0 03 0 05 0 03 0 04 Tl T2 T4 175 0 05 0 06 0 08 0 06 0 08 0 08 0 10 0 13 0 08 0 08 0 10 0 13 0 16 0 08 0 10 0 13 0 16 0 20 0 10 0 13 0 16 0 32 0 40 0 50 0 10 0 13 0 16 0 20 0 25 0 25 0 32 0 40 0 50 0 63 0 32 0 40 0 50 0 63 0 80 0 63 0 40 0 50 0 63 0 63 1 00 0 80 0 50 0 63 0 80 0 80 1 25 18 0 20 0 13 0 16 0 20 0 25 0 32 0 25 0 16 0 20 0 25 0 32 0 40 0 20 0 25 0 32 0 40 0 50 2 50 3 20 3 20 2 50 3 20 Unit seconds Large Adult Unit seconds 4 2 4 Film number and exposure time in film mode for long 7 mA 60 0 20 020 0 25 0 32 040 0 25 0 25 0 32 0 40 0 50 0 50 0 63 0 80 1 00 1 25 1 00 1 00 1 25 1 60 2 00 1 25 1 25 1 60 2 00 2 50 0 63 0 80 1 00 1 25 1 60 125 1 25 1 60 2 00 2 50 1 60 1 60 2 00 2 50 3 20 0 80 1 00 1 25 1 60 2 00 1 60 1 60 2 00 2 50 3 20 2 00 2 00 2 50 3 20 3 20 Unit seconds 4 2 5 Film number and exposure time in film mode for short cone 4 70 Adult Large Adult 0 01 0 02 0 02 0 02 0 03 0 03 0 04 0 05 0 06 0 08 0 04 0 05 0 06 0 08 0 10 E10 0 13 0 1
17. 0 50 0 63 1 00 0 50 0 50 0 63 0 80 1 00 1 00 1 25 125 1 60 2 50 0 63 0 63 0 80 1 00 125 1 25 1 25 1 60 2 00 2 50 Unit seconds d 4 2 2 Film number and exposure time in film mode for long 4 mA 60 0 05 0 06 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 40 0 50 0 63 0 80 1 00 1 25 1 60 Children 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 40 0 50 0 63 0 80 1 00 1 25 1 25 1 60 2 00 0 13 0 16 N 95 Adult Large Adult 0 08 0 10 0 13 0 16 0 20 0 10 0 13 0 16 0 20 0 25 0 10 0 13 0 16 0 20 0 25 0 13 016 0 20 0 25 0 32 T2 T3 T4 T5 Tl T2 74 15 0 25 0 16 0 20 0 25 0 25 0 40 0 20 0 25 0 32 0 32 0 50 0 32 0 40 0 50 1 25 1 60 0 20 0 13 0 16 0 20 0 25 0 32 0 16 0 20 0 25 0 32 0 40 0 63 0 80 1 00 2 00 1 25 1 60 2 00 2 00 3 20 1 60 2 00 2 50 2 50 2 50 3 20 2 00 2 50 3 20 3 20 2 50 320 1 60 2 00 2 50 2 50 2 2 00 4 2 3 Film number and exposure time in film mode for short 7 mA 60 0 01 0 01 0 02 0 02 0 03 0 04 0 04 0 05 0 06 0 08 0 10 0 13 0 16 0 20 0 25 0 32 Children T3 T4 0 02 0 02 0 03 0 03 0 04 0 05 0 06 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 40
18. 23 4 2 14 Sensor sensitivity number and exposure time in digital mode for long 4 mA 70 Large Adult Patient Teeth T1 0 02 0 02 0 03 0 04 0 05 01 02 03 04 05 07 08 10 4 11 4 12 4 13 4 14 4 15 0 32 0 40 0 50 T2 0 02 0 03 0 04 0 04 0 06 0 40 0 50 0 63 Children T3 0 03 0 04 0 04 0 05 0 06 0 50 0 63 0 80 T4 0 03 0 04 0 05 0 06 0 08 0 63 0 80 1 00 5 0 05 0 06 0 08 0 08 0 10 0 80 1 00 1 25 0 63 0 80 1 00 0 63 0 80 1 00 0 80 1 00 1 25 1 00 1 25 1 60 1 25 1 60 2 00 T2 0 05 0 06 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 32 0 40 0 50 0 63 0 80 1 00 T3 0 06 0 08 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 40 0 50 0 63 0 80 1 00 1 25 T4 0 06 0 08 0 10 0 13 0 16 0 20 0 25 0 32 0 40 0 50 0 63 0 80 1 00 1 25 1 60 5 0 10 0 13 0 16 0 20 0 25 0 32 0 40 0 50 0 63 0 80 0 80 1 00 1 25 1 60 2 00 2 5 UA Unit seconds 4 2 15 Sensor sensitivity number and exposure time in digital mode for short cone 7 mA 70 kV Teeth TI T2 13 T4 175 1 2 4 J 00 0 01 0 01 0 01 0 02 4 01 j oor 001 0 01 001 0 02 0 01 0 01 0 02 0 02 0 03 0 01 0 01 0 02 0 01 0 01 0 02 0 02 0 03 0
19. 6 0 20 0 20 0 32 040 0 50 0 63 0 63 1 00 Unit seconds F11 016 0 20 0 25 0 25 0 40 0 25 0 32 0 40 0 50 0 63 0 32 0 40 0 50 0 63 0 80 19 4 2 6 Film number and exposure time film mode for long 4 mA 70 Children TI 2 T4 T5 0 04 0 05 0 06 0 06 0 10 Large Adult T2 T3 T4 T5 0 08 0 10 0 13 0 13 0 20 0 10 0 13 0 16 0 16 0 25 0 16 0 16 0 20 0 16 0 20 0 20 0 25 0 40 0 20 0 25 0 25 0 32 0 50 0 25 0 32 0 32 0 40 0 63 0 32 0 40 0 40 0 50 0 80 0 40 0 50 0 50 0 63 1 00 0 63 0 63 0 80 0 32 0 32 0 40 0 50 0 63 0 50 0 63 0 63 0 80 1 25 0 63 0 80 0 80 1 00 1 60 gt gt bo gt n 0 32 0 40 0 50 0 63 0 80 0 63 0 63 0 80 1 00 1 60 0 80 0 80 1 00 1 25 1 60 0 40 0 50 0 63 0 80 1 00 0 80 0 80 1 00 1 25 1 60 1 00 1 00 1 25 1 60 2 00 0 50 0 63 0 80 1 00 1 25 1 00 1 00 125 1 60 2 00 1 25 1 25 1 60 2 00 2 50 0 63 0 80 1 00 1 25 1 60 1 25 1 25 1 60 2 00 2 50 1 60 1 60 2 00 2 50 3 20 F 14 0 80 1 00 1 25 1 60 2 00 1 60 1 60 2 00 2 50 320 2 00 2 00 2 50 3 20 F 15 1 00 1 25 1 60 2 00 2 50 2 00 2 00 2 50 3 20
20. ain Solution If the same symptom appears the cause of the error is presumed to lie in the power PC board and it should be replaced If the exposure turns out to be normal the cause is presumed to lie in the head 10 2 16 Error Code 17 Meaning Tube voltage during exposure rose to 80 kV or above To release Turn off the main power switch and confirm all displays go off Then turn on again Solution If the same symptom appears it is more likely that the power PC board is the cause In this case replace the PC board If not resolved Possible cause The head is out of order Solution Replace the head 2 17 Error Code 19 Meaning An over current ran the primary circuit of the high voltage transformer To release Turn off the main power switch and confirm all displays go off Then turn on again Solution If the same symptom appears it is more likely that the power PC board is the cause In this case replace the PC board If not resolved Possible cause The head is out of order Solution Replace the head 2 18 Error Code E 20 Meaning The exposure switch was pressed when the temperature inside the head was 60 C or higher To release Release the exposure switch to restore the original state Solution It is highly likely that exposures were conducted irrespective
21. and exposure time in digital mode for short 4 mA 60 Adult Large Adult 400 001 0 01 0 01 0 02 0 02 0 02 0 03 0 03 0 01 0 02 0 02 0 02 0 03 0 02 0 02 0 02 0 03 0 04 aos on 006 019 a 005 010 016 0 05 0 06 0 06 0 08 0 10 0 06 0 08 0 08 0 10 0 13 409 0 08 0 08 0 10 0 13 0 16 0 25 0 20 0 20 0 25 0 32 0 40 0 63 4 14 0 25 0 25 0 32 0 40 0 50 0 40 0 50 0 50 0 63 1 00 0 50 0 63 0 63 0 80 1 25 0 25 0 32 0 40 0 50 0 63 0 50 0 63 0 80 1 00 1 25 Unit seconds 21 4 2 10 Sensor sensitivity number and exposure time digital mode for long 4 mA 60 400 0 03 0 03 0 04 0 04 0 06 0 06 0 08 0 10 0 03 0 04 0 05 0 06 0 08 405 0 08 0 10 0 13 0 13 0 20 0 13 0 16 0 20 0 25 0 32 406 0 10 0 13 0 16 0 16 025 0 32 0 40 0 50 0 50 0 80 1 00 0 40 0 50 0 63 0 63 1 00 1 25 413 0 50 0 63 0 63 0 80 1 25 1 60 2 00 3 20 0 80 1 00 1 00 1 25 2 00 1 25 2 50 Unit seconds 0 25 0 32 0 40 0 40 0 63 0 40 0 50 0 63 0 63 1 00 0 80 4 2 11 Sensor sensitivity number and exposure time digital mode for short 7 mA 60 Children Adult Large Adult Teeth T1 72 T3 T4
22. case replace the exposure switch If a hand switch 1 used connect either of the connectors and check it 2 11 Error Code E 11 Meaning Tube current of 2 mA or more is detected during preheating To release Turn off the main power switch and confirm all displays go off Then turn on again Solution There is a failure in the power PC board Replace the PC board 2 12 Error Code E 12 Meaning Tube current of 1 mA or more is detected when main power switch is turned on To release Turn off the main power switch and confirm all displays go off Then turn on again Solution There is a failure in the power PC board Replace the PC board 2 13 Error Code E 14 Meaning Tube voltage immediately before termination of exposure was less than 50 kV when 60 is set or less than 60 kV when 70 kV is set release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make an exposure for 0 05 seconds and check the tube voltage After exposure do not release the exposure switch Press the kV button twice while holding down the exposure switch Q Keep holding down the exposure switch and check that the T5 light is on and the indication of the seven segment LED Solution If seven segment LED displays not more than 50 kV when 60 KV is set or not more than 60 kV when 70 kV is set increase the settin
23. d setting is 8 3 Operation and display Press the A V button to increase decrease the tube current adjustment value displayed on the X represents the tube current adjustment value for 4 mA held at the time seven segment LED Select the value you want and press the patient selection button for approximately one second alarm sounds and the value is stored as a new tube current adjustment value for 4 mA Q Press the tube current selection button and the light for 4 mA is turned off and 7 mA is turned on Follow the same process as above to store a new tube current adjustment value for 7 mA When the change of tube current adjustment value is completed the standard digital value for tube current is automatically changed in conjunction with the adjustment value stored 3 3 Tube voltage adjustment value 1 To enter this mode Hold down the patient cone film buttons for approximately three seconds 2 The status when you enter the mode The ready light blinks The lights for teeth patient cone tube current exposure film and digital mode are off Q For the tube voltage light 60 kV is on seven segment LED displays standard setting is 8 3 Operation and display Press the A or V button to increase decrease the tube voltage adjustment value displayed on the X represents the tube voltage adjustment value for 60 kV held at the time seven segment LED Select the val
24. e power PC board a G ne Turn on the main power switch and measure the voltage 7 b cm a GGL cs 5 Check that the calculation result of b 0 03 falls Never tarh within 0 05 V this VR Solution See photo 1 Photo 1 Power PC board Adjust VRO1 on the power PC board to make b a x 0 03 Possible cause 2 The memory is out of order Verification Check C XX setting at overview mode Refer to section 3 9 Solution If C 7F is displayed memory is out of order and timer PC board should be replaced 2 4 Error Code 03 Meaning The exposure switch was pressed when the supply voltage was more than 110 of the rated voltage To release Release the exposure switch to restore the original state Verification Measure the voltage between L and N of the power supply terminal block Solution Decrease the voltage using a step down transformer if the supply voltage is more than 110 of the rated voltage If not resolved or if the line voltage is within the range of 10 of rated voltage Possible cause 1 The standard supply voltage is set to an abnormal value Verification See photo 1 D Turn off the main power switch Q Set the multi meter at AC voltage range Measure the voltage a between L and N of the power supply terminal bl
25. efer to section 3 3 y Automatic adjustment of preheating power Not N N N Refer to section 3 6 2201 Error Code 2 1 Error Code E 00 Meaning The exposure switch was released during x radiation To release Press either button for teeth selection IMeasures Explain that the operator must continue pressing the exposure switch until the exposure light goes out and alarm stops sounding If not resolved Possible cause Contact fault occurred in the exposure switch or contact failure occurred due to disconnection in a curl cord of a hand switch in the middle of exposure Verification Replace the exposure switch or the hand switch from the timer PC board and check continuity of the cables Pay special attention to the cord bush and connectors Solution Replace the exposure switch or the hand switch if any failure is found 2 2 Error Code E 01 Meaning The exposure switch was pressed within three seconds after power on The exposure switch was pressed within ten seconds after previous exposure To release Release the exposure switch to restore the original state Solution Explain that the operator must wait to press the exposure switch during three seconds after power on until the ready light is on and that exposure is allowed only after an interval 50 times the length of the last e
26. en the power is turned on To release Turn off the main power switch and confirm all displays go off Then turn on again Solution Set the h XX value to h 10 at all conditions 60 kV 4 mA 70 4 mA 60 kV 7 mA 70 kV 7 mA If the same symptom E 09 does not appear when the power is turned on again set the CP value see 3 3 and perform automatic adjustment of preheating power see 3 6 If not resolved Possible cause The timer PC board is out of order Verification Replace the timer PC board and check whether the same symptom Error code E 09 appears again Solution If the error code disappears the timer PC board is presumed to be the cause Replace it 2 10 Error Code 10 Meaning The exposure switch is already on when the power switch is turned on release Turn off the main power switch and confirm all displays go off Then turn on again Verification Power on after disconnecting CN2 on the timer PC board and check whether the same symptom E 10 appears If the hand switch is used disconnect CN3 as well Solution If the same symptom Error code E 10 appears even after the connector is disconnected the cause of the error is presumed to lie in the timer PC board In this case replace the timer PC board If the E 10 does not appear the cause is presumed to lie in the contact fault in the exposure switch In this
27. g value for CP X Refer to section 3 3 If not resolved Possible cause The power PC board or the head is out of order Verification Replace the head and check whether the same symptom Error code E 14 appears again Solution If the same symptom appears the cause of the error is presumed to lie in the power PC board and it should be replaced If the exposure turns out to be normal the cause is presumed to lie in the head xg 2 14 Error Code 15 Meaning Tube voltage immediately before termination of exposure was higher than 70 kV when 60 kV is set or 80 kV when 70 kV is set To release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make an exposure for 0 05 seconds and check the tube voltage After exposure do not release the exposure switch Press the kV button twice while holding down the exposure switch Q Keep holding down the exposure switch and check that the T5 light is on and the indication of the seven segment LED Solution If seven segment LED displays not less than 70 kV when 60 is set or not less than 80 kV when 70 kV is set decrease the setting value for CP X Refer to section 3 3 If not resolved Possible cause The power PC board or the head is out of order Verification Replace the head and check whether the same symptom Error code E 15 appears again Solution
28. gital mode press the digital mode button to select the digital mode To change the tube voltage or tube current press the tube voltage or tube current button and turn on the light you want To change the sensor sensitivity number press the A or V button to display the sensor sensitivity number you want on the seven segment LED When you complete the change turn on the lights for the film type digital mode you want to prioritize at the time of power on Press the 1 button for approximately one second and then an alarm sounds and the settings are stored in EEPROM Prioritized settings at factory are listed in table 1 Table 1 Factory settings for priority Film type Patient type Cone Tube current Tube voltage a Adult Short 7mA 60 kV Film speed number Film speed number Sensor sensitivity Digital tube Digital tube film type a film type b number current voltage F 09 05 4 06 4 60 09 is an exposure condition for speed D Kodak ultra speed film and 05 is for speed Kodak insight film 3 2 Tube current adjustment value 1 To enter this mode Hold down the patient cone film buttons for approximately three seconds 2 The status when you enter the mode The ready light blinks The lights for teeth patient cone tube voltage exposure film and digital mode are off Q For the tube current light 4 mA is on The seven segment LED displays standar
29. h and wait until the LEDs on the subcontroller turn off Turn on the main power switch again B Tube current adjustment 1 Hold down the tooth selection switches together 4 and T5 until h xx appears in the exposure time display window 2 Wait until the display changes to 0 01 Make an x ray exposure by depressing the exposure switch 3 Repeat step 2 until Fin is displayed in the exposure time display window you will make approximately eight 8 to ten 10 x ray exposures until Fin is displayed 4 Turn off the main power switch on the front panel of PHOT X 5 2 Power PC board Turn off the main power at the circuit breaker panel 1 Remove top two screws and open the front cover Fig 1 2 Remove the two screws which secure the shield box Then remove the shield box Fig 2 3 Disconnect the four connectors 2P 3P 8P from the power PC board Fig 3 4 Remove the four screws which secure the power PC board Then remove the PC board Screw for shield box 3P connector connector 8P connector X Fig 2 Shield box 4P connector Fig 3 Power PC Board 5 Place the new power PC board in position and secure it with four screws One of the four screws has no flat washer and it should be placed in the bottom left corner 6 Attach the four connectors to the power PC board again being careful not to bend the PC board 7 Attach the shield box with the two screws being caref
30. head Do not forget to insert the stopper ring Fig 5 8 Insert the head key into the retaining groove while holding the head in position 9 Remove the adhesive tape and slide the arm collar downward Secure it with the arm collar screw 10 Connect the 10P connector and secure the arm cable with the nylon clamp in the yoke Secure the green ground wires from the arm and MES head to the ground terminal with an M5 screw 11 Remove the string which holds the arm closed A CP value setting l 2 Adjustment after exchanging the x ray head Turn on the main power switch on the front panel of PHOT X Hold down the P Patient C Cone and K V switches together until Fig 5 is displayed in the exposure time window Press the exposure time adjusting switches and adjust the CP number so that it is the same value as 60kV which is written on the label inside the head yoke Fig 4 Press the P Patient switch to save its value sure to hold down the P Patient switch until you hear two 2 beeps 26 3 Press the kV switch and the LED will show 70 kV Press the exposure time adjusting switches and adjust the CP number so that it is the same value as 70KV which is written on the label inside the head yoke Fig 4 Press the P Patient switch to save its value Be sure to hold down the P Patient switch until you hear two 2 beeps 4 Turn off the main power switc
31. ible cause 1 If seven segment LED displays not more than 1 mA the power PC board or the head is out of order Solution 1 Both the power PC board and x ray head should be changed if the manufactured date is Oct 2005 or earlier 2 X ray head should be changed if the manufactured date is Nov 2005 or later the tube current is not more than 1 mA after the head is replaced change the power PC board too Possible cause 2 If seven segment LED displays more than 1 mA but not more than 2 9 mA when 4 mA is set or not more than 5 2 mA when 7 mA is set tube current might be low at transient period of exposure Solution 1 Both the power PC board and x ray head should be changed if the manufactured date is Oct 2005 or earlier 2 X ray head should be changed if the manufactured date is Nov 2005 or later Possible cause 3 The tube current adjusting value is not properly adjusted Solution Increase the setting value for EP X Refer to section 3 2 2 6 Error Code E 06 Meaning Tube current immediately before termination of exposure was more than 5 mA when 4 mA is selected or more than 8 75 mA when 7 mA is selected release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make an exposure for 0 05 seconds and check the tube current 6 D After exposure do not release the exposure switch Press the mA butto
32. ion for the next exposure the tube current light and the tube voltage light blink Q When the adjustment of 60 kV 7 mA is completed move to 70 kV 4 mA and then to 70 kV 7 mA When the adjustment of 70 kV 7 mA is completed an alarm sounds and is displayed on the seven segment LED At this moment the four h values are written to EEPROM Therefore if you power off before Fin is displayed or move to another setting mode the h value will not be updated 3 7 Setting the automatic lock 1 To enter this mode Hold down the and 4 buttons for approximately three seconds 2 The status when you enter the mode The ready light blinks lights for teeth patient cone tube voltage tube current exposure film and digital mode are off The seven segment LED displays X represents the automatic lock status number held at the time 0 or 1 3 Operation and display Press the A or V button and the seven segment LED displays 0 and AL 1 in turn AL represents automatic lock and the following numbers have the meanings as described below 0 If it sits idle for approximately eight minutes while the power is on it automatically enters the energy saving mode 1 If it sits idle for approximately eight minutes while the power is on it automatically enters the lock mode Q Select the value you want and press the patient selection button for approximately one second alarm
33. lue 4e ce ee ecce ee eee eere ee eese seen sese esse ee soseeesoseeesosees sees 14 BALE gue CUN E Manual setting of preheating power eee ee eee eee eee eee esse sees L5 Automatic adjustment of preheating power eee e ences eee ee eee eee eee eese eo sese eo seeeeoseeess 15 PEDI Standard density value for each tooth eee e eee eee eese eee eee eee seen sees 16 COVERVIEW ModE c 4 7 Exposure 17 41 Assignable exposure 17 4 2 Exposure time in the automatic setting mode 4 crece crees eee eee eerte ee 17 4 21 Film number and exposure time in film mode for short cone 4 mA 60 17 4 2 7 Film number and exposure time in film mode for long 4 mA 60 18 4 2 3 Film number and exposure time for short cone 7 mA 60 18 4 24 Film number and exposure time for long cone 7 mA 60 19 4 2 5 Film number and exposure time for short cone 4 mA 70 19 4 2 6 Film number and exposure time for long cone 4 mA 70
34. n the power PC board is out of order Solution Replace the power PC board O Setting Mode 3 1 Film type digital mode and priority light 1 To enter to this mode Hold down both of the tube current button and the tube voltage button for approximately three seconds 2 The status when you enter this mode The teeth and exposure lights are off For patient cone film digital mode tube voltage and tube current the lights for prioritized settings are The ready light blinks On the seven segment LED the film speed number or the sensor sensitivity number which was set in the prioritized film type digital mode is displayed 3 Operation and display Each time you press the patient cone or film type button the light of your choice is turned on Pressing the digital mode button turns off the film light and turns on the digital light Thus turn on the lights for the settings you want to prioritize at the time of power on To change the film speed number registered in the film type press the film type selection button to display 13 the film type you want the press the button to display the film number you want the seven segment LED If you want to change the film number of another film type select the film type using the film type selection button and then follow the same process as above To change the exposure conditions tube voltage or tube current registered in the di
35. n twice while holding down the exposure switch Keep holding down the exposure switch and check that the T5 light is on and the indication of the seven segment LED Solution If seven segment LED displays not less than 5 1 mA when 4 mA is set or not less than 8 8 mA when 7 mA is set decrease the setting value forh XX Refer to section 3 5 If not resolved Possible cause 1 The tube current adjusting value is not properly adjusted Solution Decrease the setting value for EP X Refer to section 3 2 Possible cause 2 The power PC board or the head is out of order Verification Replace the head and check whether the same symptom Error code E 06 appears again Solution case replace the power PC board If the same symptom appears the cause of the error is presumed to lie in the power PC board the x ray head In this If the exposure turns out to be normal the cause is presumed to lie in 2 7 Error Code E 07 Meaning Tube current during the exposure dropped to 2 mA or less when 4 mA is set or 3 5 mA or less when 7 mA is set To release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make an exposure for 0 05 seconds and check the tube current D After exposure do not release the exposure switch Press the mA button twice while holding down the exposure switch Solution
36. nfirm all displays go off Then turn on the main power switch again Verification The communication line may be broken Check continuity of the 2 wire of the communication cable 4P Solution Replace the communication cable if any failure is found If not resolved Possible cause 1 Something is wrong with the communication circuit on the timer PC board Solution Replace the timer PC board Possible cause 2 Something is wrong with the communication circuit on the power PC board Solution Replace the power PC board 2 20 Error Code E 23 Meaning A button other than the exposure switch is already on when the main power switch is turned on release Release the button in question to restore the original state Verification It is likely that the power was turned on while another button was held down Dismount the timer PC board from the front cover of the sub controller and then turn on the main power switch Solution Do not tighten screws too much when mounting the timer PC board If not resolved Possible cause The button on the timer PC board is out of order Solution Replace the timer PC board 2 21 Others Symptom Nothing was displayed on the display on the sub controller Verification Check whether a fuse has been blown on the filter PC board and F3 1A on the power PC board Solution
37. ock Set the multi meter at DC voltage range Connect the probe to the TP24 PWR MON and probe to TP19 5 on the power PC board Turn on the main power switch and check the indication b of the voltmeter be Check that the calculation result of b a x 0 03 falls within 0 05 V Solution See photo 1 Adjust 1 on the PC board to make b a x 0 03 Possible cause 2 The memory is out of order Verification Check C XX setting at overview mode Refer to section 3 9 Solution If C 7F is displayed memory is out of order and timer PC board should be replaced 2 5 Error Code E 05 Tube current immediately before termination of exposure was less than 3 mA when 4 mA is selected or less than 5 25 mA when 7 mA is selected release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make an exposure for 0 05 seconds and check the tube current After exposure do not release the exposure switch Press the mA button twice while holding down the exposure switch Q Keep holding down the exposure switch and check that the T5 light is on and the indication of the seven segment LED Solution If seven segment LED displays not more than 2 9 mA when 4 mA is set or not more than 5 2 mA when 7 is set increase the setting value for h XX Refer to section 3 5 If not resolved Poss
38. of the duties and the temperature inside the head rose to 60 C or higher Explain that the operator must wait until the temperature drops until the ready light becomes on before the next exposure If not resolved Possible cause 1 The arm cable temperature sensor line is broken Verification Disconnect the arm cable from the head 10P connector and the power PC board 8P connector and check continuity of 6 head side and 5 power PC board side Solution Replace the arm in question horizontal or balance arm if any failure is found Possible cause 2 The arm cable signal common line is broken Verification Disconnect the arm cable from the head 10P connector and the power PC board 8P connector and check the continuity between 2 head side and 3 power PC board side Solution 11 Replace the arm in question horizontal or balance arm if any failure is found Possible cause 3 The head is out of order Verification Disconnect the head connector 10P from the arm cable and check continuity between 2 and 6 terminals in the head connector Solution Replace the head if no continuity between 2 and 6 terminals is confirmed 2 19 Error Code E 22 Meaning Communication between the power PC board and the timer PC board was not normal release Turn off the main power switch and co
39. the manufactured date is Nov 2005 or later the tube current is not more than 1 mA after the head is replaced change the power PC board too Possible cause 4 If seven segment LED displays more than 1 mA but not more than 1 9 mA when 4 mA is set or not more than 3 4 mA when 7 mA is set tube current might be low at transient period of exposure 1 Both the power PC board and x ray head should be changed if the manufactured date is Oct 2005 or earlier 2 X ray head should be changed if the manufactured date is Nov 2005 or later 2 8 Error Code E 08 Meaning Tube current during exposure rose to 15 mA or above release Turn off the main power switch and confirm all displays go off Then turn on again Verification Make exposures for 0 1 seconds and check whether the same symptom appears every time Solution Decrease the setting value for h XX Refer to section 3 5 If not resolved Possible cause The power PC board or the head is out of order Verification Replace the head and check whether the same symptom Error code E 08 appears again Solution If the same symptom appears the cause of the error is presumed to lie in the power PC board In this case replace the power PC board If the exposure turns out to be normal the cause is presumed to lie in the head 2 9 Error Code E 09 Meaning The set value for the preheating power is abnormal wh
40. tting mode 1 A short alarm sounds when any of the AV teeth patient cone tube voltage tube current exposure film and digital buttons are pressed small sound volume DUTY 10 The sound volume of exposure decreases 2 A short alarm sounds when any of the AV teeth patient cone tube voltage tube current exposure film and digital buttons are pressed standard sound volume DUTY 50 Q Select the value you want and press the patient selection button for approximately one second alarm sounds and the value is stored as a new alarm setting value Factory default is bu 2 3 5 Manual setting of preheating power 1 To enter this mode Hold down the Film and T4 buttons for approximately three seconds 2 The status when you enter the mode ready light blinks lights for teeth patient cone exposure film and digital mode are off Q For the tube voltage light 60 kV is on The seven segment LED displays h XX represents the preheating setting value for 60 kV 4 mA held at the time 00 to 1F The standard setting is h 10 3 Operation and display Press the A or V button to increase decrease the preheating power setting value displayed on the seven segment LED Select the value you want and press the patient selection button for approximately one second alarm sounds and the value is stored as a new preheating power setting value for 60 kV 4 mA Q Pressing the tube voltage selection button switches
41. ue you want and press the patient selection button for approximately one second alarm sounds and the value is stored as a new tube current adjustment value for 60 kV Q Press the tube voltage selection button and the light of 60 kV is turned off and 70 kV is turned Follow 14 the same process as above to store a new tube voltage adjustment value for 70 kV When the change of tube voltage adjustment value is completed the standard digital value for tube voltage is automatically changed in conjunction with the adjustment value stored 3 4 Setting the alarm 1 To enter this mode Hold down the T1 and T2 buttons for approximately three seconds 2 The status when you enter the mode The ready light blinks lights for teeth patient cone tube voltage tube current exposure film and digital mode are off The seven segment LED displays bu X X represents the alarm status number held at the time 3 Operation and display Press the A V button to increase decrease the alarm status number displayed on the seven segment LED Select the value you want and press the patient selection button for approximately one second An alarm sounds and the value is stored as a new alarm status number bu represents buzzer and the following numbers have the meanings as described below 0 A standard alarm may sound only during exposure when an error occurs when changing film type digital mode when changing cone type and in the se
42. ul not to pinch the wires 8 Attach the front cover and secure with the two screws which were removed in Fig 4 step 2 27 Adjustment after exchanging the power board mA adjustment 1 2 Turn on the main switch at the circuit breaker panel and the main switch on the x ray front panel Hold down the tooth selection switches together T1 T4 and T5 until h xx appears in the exposure time display window Wait until the display changes to 0 01 Make an x ray exposure by depressing the exposure switch Repeat step 3 until Fin is displayed in the exposure time display window you will make approximately eight 8 to ten 10 x ray exposures until Fin is displayed Turn off the main power switch on the front panel of PHOT X II 28
43. xposure time If not resolved Possible cause Contact fault occurred in the exposure switch or contact failure occurred due to disconnection in a curl cord of a hand switch in the middle of exposure Verification Replace the exposure switch or the hand switch from the PC board and check continuity of the cables Pay special attention to the cord bush and connectors Solution Replace the exposure switch or the hand switch if any failure is found 2 3 Error Code E 02 Meaning The exposure switch was pressed when the line voltage was less than 90 of the rated voltage To release Release the exposure switch to restore the original state Verification Measure the voltage between L and N of the power supply terminal block Solution Increase the line voltage using a step up transformer if the supply voltage is less than 90 of the rated voltage If not resolved or if line voltage is within 10 of rated voltage Possible cause 1 The monitoring voltage for power supply is misadjusted Verification See photo 1 D Turn off the main power switch Q Set the multi meter at AC voltage range Measure the voltage a between L and N of the power supply SEHE 05 J mp LN E terminal block Set the multi meter at DC voltage range Connect the EB probe to the TP24 PWR MON and probe to TP19 FPES a S G on th
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