Have a Westinghouse TV. One of those cheap 19 inch jobs and it has a suttle mid to low frequency background noise that comes through audio when you turn the volume off you can still hear it coming out of the speaker. But also when I disconnect the speaker you can still hear it out the top back vents. Like a vibration. The best way I can describe it is like a quiet DC motor with plastic gears. Kind of like a low drone VERY faint and steady I notice the frequency come up slightly when I plug the antenna in from the VHS. It is not very loud and even the audio drounds it out OK but of course I hone in on it because I am like that with gear and once I detect it I can;t stop listening for it low in the mix. I would guess it is inducing into the audio but may not be a bad audio section because like I said when I disconnect the speaker you can hear somthing mechanical like a low motor or vibrating sound that is really dronish.
Any ideas? Can this be fixed?
On a set that is making a low pitched sound, It is most likley a "singing" transformer or coil in the tv itself. There is not alot one can do to correct this problem, as it is probably the deflection yolk on the picture tube, and this would far exceed the cost of a new set, to have this yolk replaced. Wish i had better news for you my freind. Good Luck, and let us know how you made out or decided with this set.
Thanx Larry it's OK I only paid 35 for it. I replace the other one i was talking about to you yesterday the Magnavox. Anyway it's not that noticable. If i had to compare it to anything it would be the sound of a VCR on play.
I discharged my first CRT today. I was expecting a hell of a blast but just a little pop.
Question: for the ground I clipped onto a metal power bar this time but can you use that metal braided cable that wraps around the monitor for grounding my aligator clip or is it better to do what i did and use "ground/earth" ground...
Amps i am great with but I am getting interested in TV's. Somthing new!
yes you can certainly use the ground around the CRT. Have you seen the new article yet on this subject? Just submitted yesterday. Read and enjoy,as all of the articles here will help you. http://www.techlore.com/article/16182/Getting-Started-to-Repair-Your-TV-Set----The-Ins-and-Outs/
Cheers Larry thanx for spending the time!
B