Sylvia Else wrote:
Jamie wrote:
Sylvia Else wrote:

This television displays a strange image and sound distortion just
after it's been turned on, as shown in this 5 second video.

http://www.youtube.com/watch?v=usQFxTJ04s4

It may do this several times, and, rather disconcertingly, seems to
be slowly getting worse.

Note - the slight flickering is an artefact of the video recording.

I'm using a computer output to show the fault, but I get the same
behaviour on broadcast channels if the computer is completely
disconnected, and turned off.

I suspect a warming up effect. Any ideas?

Sylvia.
Yup, that's High Voltage arcing around in there.

Ouch!

Might me a good idea to have some one that knows more
about it to take a look.


I've disconnected it from the mains. Later on today (to allow any caps
to discharge) I'll take the back off and see whether there's any obvious
reason for arcing - dead insects, loose connections.

Accumulated dust &/or smoke on the EHT circuitry & the back of the CRT.
Take the back off the TV & see if you can see any arcing.

Beyond that, I have the problem of deciding whether it's worth paying to
repair a 10 year old CRT TV

I would. It most likely needs nothing more than cleaning out all the gunk.

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