Automan Posted May 1, 2017 Report Share Posted May 1, 2017 I have owned MiniDisc machines from Sony's very first model and have recording from that time. Anyway, I thought it was time to try a few of my players out again. The portables I have tried so far still worked but my MDS-JB940 is under the weather. At first it worked but then would not eject and this seems to be a common problem so I ordered the belt. Anyway, after helping that disc out it seemed to be okay and I put the lid back on. It worked all day playing several discs and I left a disc in putting it in standby (they use 1 watt in standby). This morning I turned on my AMP, pressed play on the MD remote but instead of playing all it does is make a relay clicking noise (The relay feeds AC power to the main transformer that feeds most of the machines electronics, it has another small transformer on all the time feeding the clock and remote interface). Unplugging from the mains and plugging it back in just makes the relay click. I have looked at the threads in this forum and google searches but cannot find any mention of this fault. The comprehensive Sony Engineers manual has lots of fault diagnostics for the disc unit but not the power supply unit. I am hoping that it is just a power supply fault and perhaps one of the very large capacitors on the AC Board has failed (no sign of any bulging). Thus I have ordered replacements for C927, 924, 921 and 401 Has anyone get any other ideas relating to this fault? Quote Link to comment Share on other sites More sharing options...
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