KaVo ORTHOPANTOMOGRAPH OP 3D Pro, Руководство по обслуживанию, Страница: 166 / 192

7 Error codes and troubleshooting
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7.6.2 Power distribution (mains)
7.6.2.1 Nothing happens when the X-ray unit is
switched on
• Check that the mains cord is connected to the wall
socket.
• Check that there is mains power reaching the wall
socket.
• Check Fuses F1 and F2.
• Open the front cover at the lower end of the car-
riage and check that the voltage indicator lamp on
EA200 is on (or measure voltage from connector
JA203).
7.6.2.2 No X-rays
• Check that lamp (LA1) on R3710 (generator pow-
er) is on.
If not, plug it in.
If not, call your local electrician to fix the problem.
Check that correct voltage range is selected by
checking the position of the voltage selector
jumper J1 on the EA200 board.
Replace blown fuses.
If EA200 is receiving voltage then measure the
secondary voltages from the low power supply.
 If any of voltages are missing when each
of the low voltage connectors are un-
plugged, replace transformer.
 If voltages are OK, when each low volt-
age connector is un-plugged, but not OK
when any of connectors is connected,
then follow trouble shooting for the LOW
voltage side.