The tv is froze and makes squeaking noises, wth? Oh by the way it is a Westinghouse
First, make sure it is not coming from the loudspeaker itself. If it is, then we are looking at an unusual electronic interference problem rather than simply mechanical vibration.
In most cases, this sound, while annoying, does not indicate an impending failure (at least not to the set - perhaps to your mental health) or signify anything about the expected reliability of the set though this is not always the case. Intermittent or poor connections in the deflection or power supply subsystems can also result in similar sounds. However, it is more likely that some part is just vibrating in response to a high frequency electric current.
There are several parts inside the TV that can potentially make this noise. These include the horizontal flyback transformer, deflection yoke, other transformers, even ferrite beads in the horizontal deflection circuits. In addition, transformers or chokes in the switching power supply if this is distinct from the horizontal deflection circuitry. Or even a portion of the sheetmetal used for shielding if in close proximity to a magnetic component
If you are desperate and want to check the inside of the set:
Using appropriate safety precautions, you can try prodding the various suspect parts (flyback, deflection yoke, other transformers), even lowly ferrite beads, with an insulated tool such as a dry wooden stick. Listen through a cardboard tube to try to localizing the source. If the sounds changes, you know what part to go after.
Once you have located the guilty party, some careful repositioning, a strategically wedged wooden toothpick, or a dab of RTV silicone or hot-melt glue may keep it quiet. Where the yoke is the guilty party, see the section: Reducing/eliminating yoke noise.
It is possible to coat the flyback transformer, but this is used mostly when there a loose core or windings and you are getting not only the 15,735 Hz horizontal (NTSC) but also various subharmonics of this. This is probably acceptable but may increase the temperature of the flyback.
A replacement flyback (or whatever part) may cure the problem unless it is a design flaw or manufacturing quality problem. However, the replacement part could be noisier. You really do not want to replace the yoke (aside from the cost) as convergence and other service adjustments would need to be performed. Other transformers can be replaced.
Hope this sheds a little light on the problem
You do not have other speakers right next to the tv??
NOTE: IF YOU DO NOT HAVE ANY ELECTRONIC EXPERIENCE THEN GET SOMEBODY WHO HAS EXPERIENCE WITH TVs TO DO THIS. THER IS 32000 VOLTS INSIDE THIS TV AND IS DANGEROUS WHEN THE BACK IS TAKEN OFF. THE RED CUP ON THE BACK OF THE TELEVISION TUBE WITH RED WIRE ATTACHED HOLDS THIS CHARGE - KEEP KEEP AWAY FROM THIS
Feb 01, 2011 |
Televison & Video