At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Instant on/warm up feature doesn't work hence tv is dead. Is there a tube that is causing the problem?
TV is at least 20 years old sold with Sears name
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
hi thats a common problem i would replace the crankshaft sensor first there bad for working when cold then breakdown when hot hence the reason no spark when warm
Dear bob_bitt, I am very sorry to say this but,looks like your TV is dead for ever. Plasma TV's have a glass tube inside them that fires the pictures onto the screen. The tube in your TV must have reached its EoL (End of Life) and hence,would have shattered.(That should explain the shattering glass) Before you throw out your TV though,try to get it checked by a professional technician. But if you bought your TV around 10 years ago,you will be better off buying a new TV.
Any pop or loud noises sound when tv turn back on possible have water damages into it circuits boards components.No.Tries take the tv aparts leave it closed by to the portable heater unit turn it on high like 1-2 hours.Might get the tv work again,if tv have no components parts damages or dead.
The symptoms you describe are not uncommon in old sets. The loss of high voltage can be from a leakable path around the picture tube caused by dust and dirt; it can be caused by a weak flyback transformer that gives out after a long warm up; it can be from an overheated output transistor in the horizontal output stage; and others.
The fact that is occasionally comes back on would tend to indicate the problem may be from too much dust and dirt around the picture tube; hence somewhat dependent on humidity and environmental factors.
But, it really requires a hands-on analysis by someone who can take a look inside the set to determine the exact cause but if you wish to get inside the tv yourself don't do it without careful instructions as the high voltage can stay around for hours after the set is turned off
This T.V. doesn't use a lamp. If you're referring to the picture tube, there is no fixing this other than making slim adjustments on the knobs on the flyback. Don't tweak it too much or it will cause retrace lines. However, in most cases a bad picture tube means its time for a new T.V.
This problem can result from the aging of various components within your set, in general with older TVs, particularly sets of 15 years or older for example tend to suffer from capacitors that degrade - effectively reducing the maximum level of picture illumination available. Another issue for old sets that have been used extensively is that of the picture tube's electron gun aging, over time the gun produces fewer electrons to fire at the phosphor coating hence causing less "glow" - this can be sometimes improved by adjustments to the tube. All in all the set may require a decent service to ***** what aged components need replacing. Some later TVs do have a trimpot on the flyback transformer to allow the tube's brightness to be increased, but most older sets lacked this feature. SHARP did have this feature on many of it's 90s TVs but it needs to be adjusted with care by suitable techs due to the dangerous voltages present.
If the glass picture tube is cracked it is not repairable. In some
cases it would be possible that the tv would still work if it has a
cracked glass but it would not be advisable to use it as it could allow
x-ray radiation to escape. The tube is a vacuum and a cracked tube
would lose it's vacuum (**** air inside) and cause it to instantly burn
out when turned on. Sorry :(
This can be caused not enough high voltage going to the picture tube. If the picture seems to get larger and smaller depending on the brightness of the scene on the screen that is probably what it is. IF that is the problem, there isn't much a normal consumer can do.
×