CRT TV Problem

volkswagen_1

Hello. I'm trying to help my dad again; this time with his portable TV, a 14 inch Philips.

The picture sort of shrinks from the sides and then goes darker then brighter again. After doing this for a few seconds the picture disappears.

My dad gave the case a bash and the picture came back and followed the above fault sequence. After a minute or two of this, the picture stabilses, but does do the occaisional flicker.

I've tried taking the back off and vacuuming the dust out (this worked on an old tv I had years ago), but his only worked for a day or so.

It seems that the tv is worse when it's been switched off all day, as if you turn off and on after a shorter time, it works OK (still occaisionaly flickers though).

Thanks for any advice.

spike7451

Sounds like the tube is going or a power problem,Expensive to fix & cheaper to buy a new one I'm afraid.

AHAR

It's probably best not to access the innards of a CRT TV. I've read that they can hold very large amounts of residual electric charge, even after they've been unplugged for a while.
Given the relatively low cost of small LCD TVs I wonder if any repair of your old Philips would be economical.

roddydogs

Just get a free one from Freecycle, CRTs arnt worth a light, even a 32" Sony widescreen.

volkswagen_1

Thanks for the replies guys. I feared that it could be something major.

It's not the money that's the problem; my dad's in his eighties and struggles with new equipment. As you may have read in my other thread, he's still using his old VCR. So if I can keep his old stuff going, I try to.

His main tv is lcd and he's (eventually) got used to it; I leave the tv on the video channel and he uses the VCR's set top box to change tv channels. He only uses the tv remote to switch on and off.

Thanks again for the advice.

p.s. the tube on his old tv is dated 1995, so it's lasted quite well.

Moneymaker

Probably just dry solder joints. Zero cost to repair apart from time and labour.

sjb2016

Could check eBay for a similar model. We bought a Sony Trinitron 25 inch for less than £3! Works brilliantly.