Don't worry. The problem is common among digital processors - especially during the winter season.
My $7K Classe' SSP-50 does the same thing. The static is enough for the processor to lose track of the signal and mute for a 3 second relock. Just the other week, I thought I blew a chip because the preamp went haywire and I was unable to use it for 1/2 hour (after many "hard" boot-ups)! It's been fine since then but I make sure I discharge my static build-up by touching a protruding corner wall before I touch the (metal) rack or components.
Good luck.
A
My $7K Classe' SSP-50 does the same thing. The static is enough for the processor to lose track of the signal and mute for a 3 second relock. Just the other week, I thought I blew a chip because the preamp went haywire and I was unable to use it for 1/2 hour (after many "hard" boot-ups)! It's been fine since then but I make sure I discharge my static build-up by touching a protruding corner wall before I touch the (metal) rack or components.
Good luck.
A