Checking The Can Bus With The Diagnostic Function Of Board Dx1 - Sirona Orthophos XG 3D Ceph Service Manual

Sirona Dental Systems GmbH
Service Manual ORTHOPHOS XG 3D / Ceph
V700 V701
Slow flashing Slow flashing
Fast flashing Off
Fast flashing Fast flashing
Off Fast flashing
Off Off
63 03 510 D3352
D3352.076.03.11.02 09.2016
6.2.1 Checking the CAN bus with the diagnostic function of
board DX1
Board DX1 features a diagnostic function for diagnosing malfunctions of
the CAN bus via LEDs V700 and V701 (see wiring diagrams). The
following table indicates the operating status of the CAN bus and the
recommended error correction measures:
CAN bus operation
CAN bus OK
CAN error, no communication with
board DX7, i.e. no display of error
messages
CAN error, no physical communication
with CAN bus possible; there is
probably a short circuit in the CAN
cable or on the board of a module.
CAN error, CAN bus TTP (time trigger
protocol) disturbed by defective,
constantly transmitting board (bus-
heavy).
System did not power up (DX11)
6.2 Checking the CAN bus
Error correction
Not required
● Check cabling.
● Check CAN jumpers (Jumper
positions in the CAN bus [ → 168])
● Disconnect CAN cables one after the
other (set jumpers to inner position!)
until the CAN bus functions again
(V700 and V701 flash slowly).
Replace faulty module.
● Disconnect CAN cables one after the
other (set jumpers to inner position!)
until the CAN bus functions again
(V700 and V701 flash slowly).
Replace faulty module.
Switch unit off and on again and wait until
end of power-on time.
6 Troubleshooting
167