Sirona galileos, Руководство по обслуживанию, Страница: 154 / 388

61 25 665 D3437
154 D3437
.
076.01.15
.
02 06.2012
6 Troubleshooting Sirona Dental Systems GmbH
6.9 Fault diagnosis of the X-ray detector and on board DX89 Service Manual GALILEOS
Image memory test
6.9.3 LEDs of operating voltages
LEDs of operating voltages
Operating voltages (28V, 24V, 5V, 3.3V) The four LEDs are powered directly by the four operating voltages and all
must light up after the system start.
If this is not the case, check connector X201 for firm seating. If the
connector is OK and the LEDs still do not light up, then replace the X-ray
detector [ → 319].
Operating voltages on DX89 and X-ray
detector
These two LEDs PLL_FPGA and PLL_CCD must light up following the
system start. If this is not the case, replace the x-ray detector [ → 319].
LED on: Image memory test is o.k.
LED off: Based on the PLL_FPGA LED, check whether the
FPGA on DX89 has started properly:
● PLL_FPGA LED off:
see the action under "LED OFF for PLL_FPGA".
● PLL_FPGA LED on: Replace board DX89 [ → 346].
NOTICE
The unit must be switched off before disconnecting any plugs or cables.
Supply voltage (in V) Light-emitting diode (LED)
28 V101
24 V109
5 V108
3,3 V107