hi there, wondering if I could get some help here:
I have an old CRT tv black and white, I've plugged it to an HDMI/composite to RF modulator HDM69
It used to work some time ago but can't find out why it doesn't anymore
When I don't plug anything it seems alright (but not sure it really is) but as soon as I plus HDMI or composite my tv doesn't display things right
Notice that it works on my modern tv
Here is a video showing what's happening
Any ideas ? <3
PS: the horrible noise is my vaccum cleaner
Just guessing here, im no expert.
Could be interference from the vacum. Some old tvs and depending on the electrical circuit they are plugged in dont like when high powered devices are running. A bad electrical circuit can aldo cause this, try plugging it to a regulator.
Badly tunned. Some tvs allow for fine tunning of the chanel they are "listening" to
Bad cable, even if it works on other tvs. Some tvs handle "weak" and/or "dirty" signals better than others.
Bad modulator. Same as cable
Bad tv. In my experience capacitors die and can cause those kinds of failures but I wouldnt recomend poking inside a crt tv if you dont know what you are doing.
BTW, thats a pretty TV. Hope you get it working.
It's not really an issue with high powered devices, it's an issue with brushed motors that arc and produce loads of RFI.
TIL. Thanks! ^.^