Sirona ORTHOPHOS SL 2D Service Manual page 122

5 Messages
5.4 List of error messages
Error code Description
E7 42 12 Unit is not ready for operation
Error code Description
E6 42 20 Contact to DX11 interrupted during
operation.
Error code Description
E7 42 21 No CAN bus connection. DX11 does
not start.
Occurs in the start screen after
power-on.
122
Actions required
E7 42 12
This error is a sequential fault.
● Restart the unit:
1. Switch off the unit.
2. Wait 1 minute.
3. Switch on the unit, making sure that the
release button is not pressed during
booting.
4. Repeat procedure and check function.
If the error occurs repeatedly ...
● Repeat procedure and observe causal
error messages.
● Check the signal path from board DX1 to
board DX42, replace module if necessary
Actions required
E6 42 20
● Check the signal path from board DX1 to
board DX42, replace module if necessary
● Check connection of remote control, see
Installation Instructions.
● Check the CAN bus.
● Check cable L17, replace if necessary.
● Check board DX42, replace if necessary.
Tip: If the error cannot be eliminated
immediately, the unit can be temporarily
reconfigured and operated with a release
button located directly on it (see Installation
Instructions).
Actions required
E7 42 21
● Check the signal path from board DX1 to
board DX42, replace module if necessary
● Check the CAN bus.
● Check remote control by running service
routine S017.6, configure if necessary.
● Querying "Unit information"
If board DX11 responds ...
● Check the signal path to DX42, repair or
replace cables/connectors if necessary.
● Replace DX1.
If DX11 does not respond ...
● If error persists: Replace board DX11.
Sirona Dental Systems GmbH
Service Manual ORTHOPHOS SL
see
S. [ → 396]
see
S. [ → 396],
S. [ → 141],
S. [ → 153],
S. [ → 404],
S. [ → 146]
see
S. [ → 396],
S. [ → 141],
S. [ → 153],
S. [ → 283],
S. [ → 59]
S. [ → 404],
S. [ → 396]
S. [ → 397]
64 95 258 D3632
D3632.076.01.03.02 09.2016