https://hummy.tv/forum/threads/hdr-fox-hardware-commissioning-disassembly-repair.5728/post-109122Perhaps it needs a good clean out, it's at least 7 years old and never been opened.
Opened the Hummy, hardly any dust in the fan or anywhere else. So read through the guide and did a database and CF reset. Which was good fun because I had forgotten how to set up network shares, but all sorted.
The switch consists of one chip for switching hdmi and a 3.3V regulator to supply the chip from the 5V on the hdmi. There's a push button to select which input the chip outputs. If I ever get round to it maybe it'll be interesting to see which is dead, but don't hold your breathAnd 3+2 = 17 as well.
My new switch caused sparkles and crackling sound, but changing the cables fixed it. Strangely it was a gold plated cable that was the problem.I tried using an HDMI switch to see if it would reduce the number of sound dropouts on my LG TV but there were so many problems that I quickly gave up
Gold plating is just a pointless con. It achieves nothing.Strangely it was a gold plated cable that was the problem.
Gold plating is worthwhile on connector pins, preventing surface oxidation from creating an insulating layer and a poor contact (I'm sure you know that). The OP didn't say where the plating is.Gold plating is just a pointless con. It achieves nothing.
So it wasn't the switch causing the crackles then.My new switch caused sparkles and crackling sound, but changing the cables fixed it.
In a very limited number of circumstances, not the things that are peddled for the ignorant masses to purchase.Gold plating is worthwhile on connector pins
I really hope you were taking the p. Otherwise my knowledge of electrical and electronic engineering has deserted me. £25 for a fuse! And all those great reviews that seem to trigger my bs detector. Nothing beats those nails used in the old fuseboxes. Send for the fire engine now!In any case, the real problem is that you don't have these fitted:
And yet swapping out the cable cured the problem. I say that the old switch didn't happen to crackle with the same cable is just coincidence (maybe your swapping broke the cable).Old switch no crackles, new switch with same cable setup crackled.
That's overly simplistic.Did some googling, sparkles are due to high impedance in the cable which reduces the strength of the digital signal to such an extent the receiver can't tell a 0 from a 1. There's no error correction so the effects are seen on the screen straight away.