My Zenith tv (about fifteen years old I think) was making some strange sounds like a scratching buzzing sound and the picture would go out but you could still hear the show just fine. After a minute or so it would come back with a fine clear picture. Now the picture has gone out completely. The sound is fine but can't get a picture. Every so often (too infrequently) the picture will come back and looks good... but only lasts a few seconds.
- 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.
The picture tubes in Zenith sets (I assume it's a Zenith since you posted this with a Zenith heading, although it's also true for any set this old) were only expected to last around 7 years. Your description makes it sound like you are missing green, or that the green is just way low. This is a common sign of a bad picture tube. There are other possible causes, but tube failure is the most likely. The low replacement cost for small TV sets makes repairing this one uneconomical.
Get rid of the set and treat yourself to a new one.
I do not have a Zenith B25A02Z TV. What I do have is a 1988 Zenith Color TV SE2517P. I called a local tv repairman and discussed the problem over the phone. He can take a look at it if we bring it in (service call to the home cost $100 just to show up). He said it was worth fixing since he thought it was only the sound. We have a great picture. He charges $20 to look at it but we have to leave it. He lives 20 minutes away one way. We think it is worth the trip if we can get it loaded into our minivan. We live in western NY where the weather can get pretty ugly many days. I will post the solution later when I know. FYI
this is just the tuner and it can be replaced or it just needs some soldering but i fix these and i can tell you it sounds like the tuner is failing and needs replaced , the tuner can be about $80 and the repair can very between 50 -$60
hope this info is worth a fixya as other ratings only hurt our rating
and if you need more assistance I'll be glad to help
I sorry to say I think you have a component failing that is related to heat. 15 years is a long time and if the TV was used in hpot conditions over the years it may well be the proble, or it's just old.
The sound you are hearing is the degausing coil which will vibrate for a second when the tv is turned on. This part demagnetizes the picture tube and this sound is really quite normal. Depending on the position of this coil it may vibrate against the front cabinet of the tv and may sound loud at times. If this really bothers you then you need to have the rear cover removed and have it repositioned a bit do it won't vibrate so loudly. Or you can enjoy the buzz for the short time it happens and not worry about it.
Does not seem like a bad tube alone. Could also be that the Video output Transistors Supply Filter capacitor having dried out. It is a 100mfd 160V capacitor, which on replacement will improve the brightness of the immage. And yes, you could also try increasing the heater voltage (Filament Voltage)of the Pictuire tube, this will definitely increase brightness, but will reduce the life of the Picture tube.
You gotta think - 10 year old TV, should I repair or exchange and get a new one???
The horizontal output transistor drives a transformer that gives you the high voltage to light up the picture tube,either the transistor or the transformer have gone bad,sometimes both have to be replaced and sometimes the transistor fails for no reason by itself.Be safe and call for help if you are not familiar with tv service.