[TheCase]

Hi,

I was watching TV at my relative and I had to switch it off after just 1 minuite. It gave me a huge headache and when I looked on the wall next to the TV and saw the TV in the corner of my eye it was flickering, like dark to light really really fast.

The relative has been sufering from very bad headaches for the last few months from watching TV for hours, but no one else can see the flickering.

Any idea what the causes of fast flickering are

Thanks

[JohnWill]

What kind of TV, tube or flat panel? The flickering is normally a result of the lighting (florescent lights being the worst) beating with the vertical scan of a CRT tube. Flat panels normally don't have this issue.

[TheCase]

The TV is a CRT. There are florescent lights near the TV but they are off, does this matter

Thanks

[JohnWill]

If they're off, they don't affect it.

I'd make sure there is nothing like a speaker or other magnetic device close to the set. Of course, the TV may simply be failing, I would gather it's probably on the old side...

[guy2]

I'm guessing it's old

One problem that CRT TVs have that is common is that somewhere in the horizontal chip set solder becoming damaged but still intact to work sometimes ,flicker or never.

I forgot the name of the thingy but the solder gets damaged more and more threw the years of shock ,moving the TV from one room to another or putting it down to fast one to many times will cause damage not to the chip it self but the solder holding it. The newer old CRTs were build to break ,take one apart and there's no chip support ,slots or anything as sturdy as the older one's.

If that's the case don't even bother getting it fixed it will cost you an arm and a leg because of all the contact points that need to be remover and re soldered manually by hand ,not like how it was manufactured.

[iamubiquitous]

It's probably (As Guy2 stated.), a cold solder joint. These can only be repaired by visually examining the board(s) and manually re-soldering the suspect joints. 'Flickering' is also (Crts AND Lcds), caused by refresh rate being set improperly and in cases of (Television), crts, by an external source plugged into the same a.c. circuit and can be corrected with a simple filter inline on the power cord.