Technogym Top 600 XTPRO Service Maintenance Manual page 37

TOP 600 XTPRO: Service & Maintenance Manual - rev. 2.0
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:
(1) Check whether the black and violet wires, which connect the alternator to pins 1 and 5 of
CN2 on the alternator interface board, are correctly connected.
(2) Place the probes of an oscilloscope between the violet wire and the alternator ground. When
the speed is varied, the waveform frequency should vary as shown in the table below:
(3) As for step (2) but with the oscilloscope probes between pins 1 (probe) and 5 (ground) of
connector CN2 on the alternator interface board.
(4) As for step (2) but with the oscilloscope probes between pins 5 (probe) and 3 (ground) of
connector CN1 on the alternator interface board.
(5) As for step (2) but with the oscilloscope probes between pins 5 (probe) and 3 (ground) of
connector CN1 on the display CPU board.
RPM FREQUENCY
60
70
80
(Hz)
180
210
240
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