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400s cutting out intermittently
#1
Hi there.

Suddenly my 400s will power off and back on again without warning. It's not a power issue: I've eliminated that as a cause.

The master will cut out and then the slave will follow. Both restart seconds later.

Doubt it is a heat problem. Room temp is 22C and there is more than 2.5cm spacing between the devices.

Thanks for any steers.
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#2
It looks like an issue with the master. If I were you, I would set them both up as stereo amps for a few days and see whether it is just the one amp that has the issue. Then send that one for repair.
                                                    Lifetime Roon, Mac mini, int. SSD, ext. HDD, tv as monitor, key board and track pad on bean bag as remote,Devialet 200, Od'A #097, Blue jeans speaker cable,                                     
                                                                                                                                                                            Dynaudio C1 MkII.
                                                                                                                                                                              Jim Smith's GBS.
                                                                                                                                                                        Northern NSW Australia.
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#3
Resetting both uniits. Have had an similar prob.


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#4
Could be an issue with one of the SD cards, or one of the SD card readers.

Have you got a spare SD card you can load the config file onto to try?
Roon Rock, Devialet 220 pro CI, Palmer 2.5 Turntable, AT OC9MLii, Classic Audio MC Pro Phono and Harbeth SHL5 Plus
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#5
Thanks all for the tips.

I'll start with the reset and work from there.
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#6
(13-Aug-2022, 14:12)neXus 6 Wrote: Thanks all for the tips.

I'll start with the reset and work from there.

I've been having similar random switching off for months and have tried everything to no avail - has anyone found a solution?
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