SYNCHRO : Service & maintenance manual - rev. 7.1
Page 6.27
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)
In Place the tester probes across pins
1
and
3
of connector
CN1
of the TGS reader. The
measured value should be +12Vdc.
(2)
As for step
(1)
but across pins
1
and
8
of connector
CN19
(CPU Board) or on the
CN7
connector (ARM Board).
(3)
Use the serial communications test described at paragraph: 6.1.3.3 “Serial Ports Test”.
If you replace ARM/CPU Board, check that its SW version is updated, otherwise
install the last version.
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