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Old 2nd Aug 2021, 7:10 pm   #2
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,953
Default Re: Strange issues with Panasonic NV-HS830

There can be ab issue with some combinations of devices where the suppression-capacitors - which form an AC centre-tap across the mains, with the centre-tap connected to the [un-earthed] chassis - inject noise-voltages - which can be significant - into the interconnections.

If the interconnections are hot-swapped [or swapped when the equipment is powered-up] it's possible for a significant spike to be fired into the active pins of the interconnects - the big issue here being that on the usual red/white/yellow RCA phono-plugs the centre contact mates before the screen - so any voltage-differences between the two devices get applied to the active components first when plugging/unplugging the interconnects.

The spikes can cause associated control-circuits/microprocessors to enter undesirable states - and/or permanent damage!

[I've known a rather-expensive DSLR camera be damaged because of this, when the owner connected it to his laptop and both of them were on-charge from their associated power-bricks].
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