This stops happening after the TV has been on for a while, but is really annoying. I've checked and rechecked the connections and all are fine.
2006-10-15 22:16:59 · 18 answers · asked by garvster 1 in Consumer Electronics ➔ TVs
dry joints or l.o.t. playing up not a diy job
2006-10-18 06:20:46 · answer #1 · answered by lloydycj 3 · 0⤊ 0⤋
Here is another for reggieman to laugh at . I have spent 45 years fixing tellys ! I am retired of course now , I don`t want to know what model and make your tv is because I don`t need to look up the fault in a database of TV faults . Instead I rely on gut instinct and my inbuilt database of faults acquired from a life time of repairing TVs. I feel that your fault is due to an arc taking place somewhere around the eht section eg anywhere from the eht connector to the CRT to the eht transformer itself , Quite often arcing will take place under humid conditions and gradually stops as the interior of the set heats up . Cure for that is clean all eht leads and parts and dry them , alcohol or metho can be used on a cloth , The fault could also be a dry joint ( yes we really do call them dry joints in my part of the planet ) in the horizontal stages which connects when hot !!!!. Well that covers the symptoms ! High pitched noise ( arcing ) lines of interference from the arcing and fault clearing when set heats up . Better not give reggieman too much to laugh at though , we don't want him to damage anything . Cheers Pete !
Interal arc does`nt usualy get better as set heats up Kc, it was a thought though Thanks.
2006-10-16 01:01:06 · answer #2 · answered by Realist 2006 6 · 1⤊ 0⤋
symptoms which disappear after the set has been on for a while, are a classic sign of dry joints.....where the solder cracks around the base of a component which is either heavy, or gets particularly warm. High pitched noises and lines may indicate something around the LOPT / line output transistor stage.
Dry joints are easily cured (by re soldering) but should only be undertaken by someone familiar with TV repairs
2006-10-15 22:30:25 · answer #3 · answered by Vinni and beer 7 · 1⤊ 0⤋
Haaaa hah aha! I love these answers...especially "Dry Joint Guy"!! He's funny!
But seriously....all you want to know is....is it repairable? YES
Is it worth it?? If the TV is 5 to 10 years....YES
After 10 it's questionable if the picture is soft or dim....
What is the problem? Countless things....but if you were to state Brand name & TV size and Type (lcd/dlp on newer models) it gives the info needed to be more correct on the answer.
However, high pitch noise is either coils in the horiz sweep circuit just vibrating, or the SMPS power supply has excess current (something in the horiz is about to POP)
Lines in the picture....depends if it's always there or not
Always there.....adjust the screen control down
Not always there?? ---Dry Joints
We call them "cracked solder connections" .....they're not dry, they don't dry out.....it's solder! Metal doesn't dry out.
2006-10-16 00:06:07 · answer #4 · answered by reggieman 6 · 1⤊ 0⤋
Thats sounds like the flyback transformer is arcing internally. I have seen it many times before.
2006-10-16 07:20:41 · answer #5 · answered by kc2irv 4 · 0⤊ 0⤋
Signs of a passing away television. Sign to get a new one I'm afraid, or put up with it.
2006-10-15 23:04:08 · answer #6 · answered by mattribbins 4 · 1⤊ 0⤋
Have u seen The Ring?
2006-10-15 22:24:46 · answer #7 · answered by shellovescharlie 3 · 0⤊ 0⤋
Its on its way out by the sound of it i think it may be the tube
2006-10-15 22:47:30 · answer #8 · answered by redroseleigh 2 · 1⤊ 0⤋
It maybe needs a dose of Botox for those lines !!!
2006-10-15 22:25:12 · answer #9 · answered by brian l 2 · 1⤊ 0⤋
depends on how old it is!....is it still under gaurantee?..if
not then it may be on its way out and that means time for a new one!....shopping spree for a new telly could be on the cards!
2006-10-15 22:24:10 · answer #10 · answered by suzanne b 1 · 1⤊ 0⤋