61 25 665 D3437
D3437
.
076.01.15
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02 06.2012
153
Sirona Dental Systems GmbH
6
Troubleshooting
Service Manual GALILEOS
6.9
Fault diagnosis of the X-ray detector and on board DX89
båÖäáëÜ
6.9.2
LED statuses and their significance in case of an error
LED statuses and their significance in case of an error
For X-ray detector errors, it is usually necessary to send the extended
details of the unit to the Sirona Customer Service Center (CSC). The
results of the LED inquiry described below also must be added to the
extended details.
The LED statuses specified here apply to the booted system.
PLL_FPGA
If all LEDs light up after the power-up phase, this leads to conclusions
concerning a defect on board DX89. See the procedure outlined above
for troubleshooting.
PLL_CCD
If all LEDs light up after the power-up phase, this indicates that there is a
defective FPGA on board DX89. For troubleshooting, see the action
under "LED OFF for PLL_FPGA".
Gettering
The free ions are pumped out of the vacuum of the X-ray detector by the
getters (hence the name "getter pump"). The getter current is measured
during operation. If this does not drop below a certain value within 12
minutes, the gettering is not o.k. In this case, the error is probably caused
by a defective x-ray detector.
LED on:
FPGA on DX89 has started properly.
LED off:
FPGA on DX89 has not started properly.
Action:
● Format flash file system via service routine
● Run software update [ → 61].
● If this step does not lead to the desired result,
board DX89 must be replaced [ → 346].
NOTICE
The unit must be switched off before disconnecting any plugs or cables.
LED on:
There is a connection to the CCD sensor in the camera
head.
LED off:
There is no connection to the CCD sensor in the
camera head.
Action:
● Check the plug connections and connection cables
between board DX89 and the x-ray detector,
if necessary, replace cable L28 or the x-ray
detector.
NOTE: In x-ray detectors with a serial number
≥ 5000, cable L28 cannot be replaced.
LED on:
Gettering is o.k.
LED flashing (after a waiting
period of 12 minutes):
Gettering is not o.k.
Action:
Summary of Contents for galileos
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