TV Problems

I suppose, doing a course that's slightly attached to electronic engineering, I should know this myself, but anyway.

My TV has developed an odd fault. The picture will sometimes flicker around and sometimes most of the screen will disappear save for a few lines in the centre of the screen. A good firm slap (yes, like Onslow used to do on Keeping Up Appearances) will fix the problem - for a time. atm it's just annoying, but in time I'm concerned it will become permanent - and I'm allready on my backup TV after my main set failed a few months ago. This TV is a good 8/9 years old, but I don't want to give up on it yet.

I'm fairly convinced it's a dry joint, but a dry joint on what? So, do any of the technical experts (I'm expecting you to post in here, Noggin) know what's up?

My bedside tv did that after a decade's service. The picture gradually collapsed (during a summer of all night big brother streaming) into a pencil thin, PAINFULLY bright line.

I almost convinced myself that I could still make out shapes, but I was fooling no one. Threw it in a skip.

My friend was very unfortunate last night as he was telling me today that in his bedroom there was a part of the wall that was leaking, but he thought it had stopped leaking, anyway it started again and it started to leak into his Televideo, anyway he had a look in the video and apparently it was full of water, so he had to chuck it out and get a new TV.

I used to have a crappy Matsui TV and one day it just went on the blink and it didn't work, but we managed to get it fixed, but at a cost though. Though a simlar thing happened to my grandparents TV, but it was one of those 1980's Wooden style Panasonic ones, which could blow up, but as soon as it broke they took it down the tip. Though bizzarely enough at my other Grandma's house is that she still has a B/W TV, though she didn't watch it often, but it was old as it had the buttons only had: BBC1, BBC2 & ITV on them. And I believe it still works.

Though I think my pocket TV has broke, but luckily I don't use it often anyway.

Our old telly did this after just 5 years of use. It's still sitting on my mothers bedroom floor.

Yep, that's what I've got.

And this is an el-cheapo Matsui TV too. I know it's probably on it's way out, but if it can be cheaply saved, I'm keen to do it. What intrigues me though, is that a good smack solves the problem, which suggests a dry joint. So does anyone know what on the board could be causing this?


Any CRT can blow up in theory, you've got a vacuum, highly stressed glass, and heat to contend with - if you throw a TV out of a Window whilst it's still hot, there will in all likelihood be a small explosion when it hits the ground.

Why settle with throwing it out the window?
http://web.pncl.co.uk/~eugene/luxor/