SYNCHRO Excite +: Service & maintenance manual - rev. 7.1
Page 6.39
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 correct display SW version, according to the “EXCITE SW SMART TABLE” you
can find in TG Direct , section.
Check the grounding of the receiver board, measuring the resistance value between:
a. The Faston on Hand Sensor Board and the ground node on the equipment;
b. The ground node on the equipment and the main wall socket.
The measured value should be approximately lower than 1Ω (Ohm).
Check finally the grounding of the main wall socket, measuring that the following voltages are
present:
P – N (phase – neutral) = 220Vac / 110 Vac
P – G (phase – ground) = 220Vac / 110 Vac
N – G (neutral – ground) = 0 Vac
(2) Check that:
a. he fastons of the cable are well connected to the HS plates;
b. The continuity of the signal between the Hand Sensor plates and the relevant pin on J2 –
J3 – J4 connectors, of the Connector Board, on the ELT-10, ELT-31 and ELT-19
cables, referring to the paragraph: 2.9. “Cables”;
c. There is NO continuity between the HS plates and the ground faston on the receiver
(otherwise the signals are grounded).
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