VARIO : Service & maintenance manual- rev. 4.2
Page 6.9
B
Is the RPM signal and the
DC voltage at the input to
the Brake Board correct?
NO
5
Replace the Stator
YES
Replace the
Brake Board
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
To speed up the troubleshooting procedure, check the state of the power indicator
LEDs on the various circuit boards.
(1)
Check if the machine stays on for 30 seconds after having stopped pedalling. If the machine
switches off in few seconds, check if the fuse on the
CU110
cable is blown. Than check the
battery charge, if it isn’t about 12Vdc, recharge the battery for 8 hour with an external power.
(2)
Check the
LEDs
1
and
2
(
green and yellow
),
of
the Display Board, are correctly lit on.
(3)
Check if the
LEDs 1
and
2
(
green and yellow
)
of the Brake Board are correctly lighting on, as
described in paragraph: 3.5. “Brake Board
(4)
Using a tester, check that all the output voltages on connector
CN1
of the Brake board. The
measured value should be:
•
+12Vdc between pins
6
-
2
;
•
+5Vdc between pins
7
-
3
.
(5)
Using a tester, check the voltage on connector
CN3
, of the Brake board. The measured value
should be 16-19Vdc, between pins
10
and
8
, nearly at 50RPM. Use a tester, to estimate the
RPM signal on the
CN3
connector of the Brake board. The measured value should be
approximately 30Vac between pin
4
and a ground point.
If you replace Display Board/Brake board, check that its SW version is updated, and
otherwise install the latest version.
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