CARDIO WAVE EXCITE Class & Trend: Service & maintenance manual- rev.2.0
Pagina 6.38
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 the earth connection of the machine using a tester to measure the resistance between
the ground pin on the power supply cable and the ground node to which the receiver is
connected inside the display. The value must be less than 1 Ohm.
(2)
Check the connections, referring to paragraph: 2.7. “Wiring diagrams”.
(3)
Place the tester probes across pins
1
and
2
of connector
HD4
of the receiver. The measured
value should be +5 Vdc.
(4)
As for step (3) but across pins
1
and
6
of connector
CN4
on the display board or
CN19
on the
CPU board.
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