This is an older tv by zenith, 1989. It works well and has a nice picture. However, when I play a vhs tape I notice a small amount of video noise across the bottom of the screen. I hooked up the vcr to another tv and I don't see the problem. Also, this only happens when watching a tape, not tv programming. Any ideas? Thank you.
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Re: video noise at bottom of screen
Try adjusting the tracking on your VCR. This symptom would typically be caused by a slight tracking error in your VCR or video heads that need to be cleaned. Your Zenith TV may be a little more sensitive to video synchronization problems than your other TV is.
If VCR tracking adjustments have no effect on the symptom, then the problem could be in the TV, but I'll need more details to assist you with troubleshooting. For example, how do you connect the VCR to the TV?
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I dont think you will be able to get the video picture to work, unless you connect a UHF lead from video to TV then tune tv into video. Digital and analogue generally dont talk to each other.
Hope this helps.
If the picture is only "snow" then the problem is the head(s) on the spinning drum have become clogged with video tape emulsion which greatly affects the spinning video head(s) reducing the video level down to only noise. This usually will happen instantly and is caused by the particular tape you were watching. The head(s) can be cleaned with a lint free cotton cloth and some alcohol by wetting a portion of the cloth with the alcohol (not to much) and with your finger hold the cloth with slight pressure against the horizontal slightly slanted slot which is on the outside surface of the drum about half way down. While applying the slight pressure spin the top of the drum around counter clockwise. do this for about 15 seconds. then when you are sure the alcohol as evaporated from the drum turn it on and try to play a tape (not the one you were watching when the problem occurred) and if the picture is still just snow repeat the procedure but this time use a little more force on the cloth. Or find and use a special VHS head cleaning tape. The cleaning tape will reduce the life of the heads because it is abrasive in nature.
The problem is not with your TV. I have had this problem as well and the older the VCR gets the harder it is for it to turn the tape. Does your VCR react the same way with other tapes? Try Fastforwarding the tape about halfway and then test it again.
This is a common problem usually seen when playing copy protected tapes. The part of the picture affected is normally off the top of the screen. Sometimes the problem is also due to the VCR itself and differences in tapes. It's also possible for the TV itself to be causing this, although you would probably also notice this flag-waving (that's what it's called) on regular TV viewing if that were true.
Sometimes increasing the height of the picture can push the affected area off the top again. But this can also cause you to lose part of the picture you want. Also, the height adjustment may be difficult to find as it's not something normally used. On some TV's it's a small pot somewhere on the board, but most newer sets have electronic adjustments through a service menu that you need to know how to access.
I'd suggest trying another VCR first and play one of the tapes you know shows the trouble. That might be all it takes. Then consider trying to increase the picture height if it's just a small bit at the top of the screen.
It could be that the video heads are just clogged.
Get a known good video tape and put it in the unit and let it just play and play and play. Quality video tapes have head cleaning substances built into the tape. If this does not work, get a Scotch Black Watch tape head cleaner. If that does not work the the heads are bad or some other problem.
Had problem checked by local outfit called "Circuit Pro"; their analysis was compatibility. Actual answer was that the Toshiba required a better quality input from "any" VHS source. I finally took a "less than perfect" VHS tape with me when I returned the Toshiba TV to the store and demonstrated the problem to one of the TV sales people. He played the VHS tape through a display VHS/DVD player to three different brands of TV. The picture was often "black screen" on a Toshiba, but was merely poor quality on the other two brands. I upgraded to a Sony KDL26M4000 from the Toshiba 26AV502U.
one way is to connect an antenna to INPUT of VHS, place a tape, press play, STOP and switch VCR\TV switch to TV. u should be able to change the channels from the VHS. If that don't work, u may have switch problems.
If this works, tell the boss..........FixYa.com
P.S. The 'blue screen' means that you don't have a signal to the antenna inpur\TV protion of VHS.