tv picture tube

[flowerpower2]

Can a television picture tube be repaired? Or, when it goes and there is no picture, does that mean that the tv should be thrown out. I still have sound.

AG

[smorodina]

It is almost never the tube that is at fault. There are a number of things that can cause this, from dry joints on the heaters to a timebase fault. Probably not a huge expense to repair and worth it if the tv is not too old. Best find a repair shop that will give you an estimate first.

[janelle_ire]

the tube is a cathode ray tube...

[romko]

the symptoms of a worn tube are usually: excessively dark picture that can't be corrected by raising the g2 voltage on the Line transformer, smeary colours (usually red pulling to the right of white objects), poor colour balance.

If there's no pic it is likely to be exactly what smorodina said.

Best advice would be TAKE the set to a decent technician, so you will be able to make a proper repair decision based on FACTS not internet guesses and speculation. Or see www.repairfaq.org if you want to learn more.

 

Good luck!

[flowerpower2]

Well, I am not sure what happened, but some time during the day yeasterday I manually switched on the telly, and hey presto! It came back on. The colours are a bit messed up though. The reds seem to be out of control. Dark-skinned people are as red as Ayers Rock (sp?). And since the bloke who sold it to me 2 yrs ago did't give me the manual, trying to fix the colour is like feeling around in the dark. It is an LG tv-vcr 14/13 inch. any help. Ta.

[romko]

sounds like a bad connection to the heaters - I've seen this many times.Usually a bit of soldering is needed, no more.

Another cause may be the little circuit board at the back of the tube has dirty connections where it meets the tube pins - can cause similar symptoms.

You could easily save this set from the landfill, if you are no good with a soldering iron get it to a reliable technician.

Good luck!