Hi! I just wanted to share with you my experience repairing this piece of equipment. From one day to another it stopped working. I am in EU so the mains switch was set at 230V. I switched it to 115V and conected it to a 115V autotransformer and it worked! So I guessed that one of the primary windings was open. Once I put a new transformer, the unit didn't turn on. Well, some audio was passing trough but the power led wasn't lit. So, as Pucho812 said:
That was it. Once I secured the connections, the unit was working again!
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