RUN EXCITE-2008: Service & Maintenance Manual - rev. 1.3
Page 6.15
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) Slightly lift the Faston connectors on the machine power inlet socket. Place the tester probes
across the live and neutral pins on the same connector. The measured voltage should be
approximately 220 VAC/110 VAC.
(2)
Check if the LEDs 1 and 2 (+5Vdc and +12Vdc), on the ARM board are on.
(3) Check if the LEDs H6 and H3 (+5Vdc and +12Vdc)on the ALE driver are on, and LEDs H2
and H3 fot AT UL driver.
(4) Check if the main voltage (220Vac/110Vac) is on the pins 1 and 2 of the J1 connectors of the
ALE and AT UL driver.
(5) Check the continuity of the power supply signals on the TRM19 and TRM20 cables, by
referring to paragraph: 2.7. “Cables” and replace what’s defective.
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