It sounds like the audio control head is at fault.
If all prerecorded tapes (movies) play with audio level jumping up and down, is is likely that the audio head is dirty. The audio head in the VCR looks very similar to a head of an old audio cassette player.
First, try to clean the audio head by running a VHS head cleanning tape. The cleanning tape will usually clean the path of all tape mechanisms..
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The Left and Right Hi-Fi audio channels. It's saying it's detected hi-fi sound on the video tape if one is playing or it will record in hi-fi sound. If they go away then you are probably watching an old tape before hi-fi sound came in. Though they will also go if the main head is dirty. As the hi-fi sound pick up heads are on that.
First of all I want you to check the tape inside it's case as soon as the problem occurs. Stop it and eject. You'll find a button on the side of the VHS tape, press it and you should be able to lift the flap. Look at the tape it should be smooth and shiny. If it is there's nothing causing damage. If you see any damage then the mechnism is causing it.
If that is good (which I think it will be) I want you to take off the top cover of the VCR and with some Servisol Video 40 spray, blast all the surfaces that the tape comes into contact with. You can wipe them too with cotton buds. Give the heads special attention. Once done leave for 30 mins and try it out.
I think the problem might be dirt that the head cleaner tape couldn't shift. The sound dipping being the hi-fi sound dropping out reverting back to the mono sound head. When you rewind the video tape acts like a cloth for an instance, hence the better performance.
It's perhaps MUCK my dear chap!
OK here's what to do, get yourself some Servisol Video 40. Then take of the top cover and spray the servisol in places where the tape comes into contact. Get some good quality cotton buds and wipe the same areas. Try not to disturb the grease where the guides move out to the head.
Insure the Servisol has evaporated before you put a tape in. It might be a good idea to give the head drum one last spray (without a wipe) after you have finished all the other areas.
PS if anyone smokes where the VCR is housed, you will have a lot of cleaning to do!
sr you can disconect hdmi cable and use a litle speaker and check for audio in rca cables output , when you put your vcr play you can have audio in rca red cable and rca white cable i think when you put hdmi your loose in rca the audio , remember in hdmi you have audio and video , if you dont have audio in vcr the audio head are bad thias is used only in vcr mode. good luck
Hi I am Vortash sounds like the tape is either still around the heads and the carrige has not been released by the mechanism or the carrige motor is not reciveng the eject signal or power to the motor . This can be for a number of reasons none repairable by unskilled personel . the timing and balance of a VCR is like a balanced Watch movement one cog out of place and the whole lot fails to work again my advice is to seek an engineer to reset this for you ,.. regards Vortash
I have an important question; Are you watching a VHS tape you recorded of another VHS movie? In other words did You rent Ben Hur and record it and then tried to watch the recording? If you did that's your problem. VCRs in the late 1990's (1997-1999) began to employ MacroVision circuitry in all VCRs, and DTR. MacroVision Circuitry makes the VCR record tapes with MacroVision in such a way that the horizontal and vertical sync pulses are not at the proper amplitude, and the AGC (Automatic Gain Control) is tricked into over compensating thus creating the scrambled picture. There is a way around this. You need to buy a video stabilizer SIMA makes such devices and some other companies do to. You feed the signal from your VCR into the unit and it corrects the video image by readjusting the video signal.
if you get sound from anther recorder that tells me that the head on the current vcr is working, which leaves just the output, if using a antenna switch to channel 4 if using 3 (theres a little switch in the back) if you are using 4 change to 3, if your using audio output cables swap them with a good working pair. if all is good it would require service (unless the mute is pushed) good luck
please mark the post with a fixya
befor i give u answer of this Q.i m gona ask u some think to make sure u regulur tape is orignal recoding from company is not that means u recrder vcr out of alighnment on audio head ..so chack that ....and hi fi system very sensetive about it,s audio head alighment ....or might u notice movie runs slow some time or fast ......if that kind problem u can't do much about it only u can do use the orignal record tape or alighment a audio head ...good luk...oh yaa clean head first ..
Your post/description indicates that possibly the brake mechanism of the supply reel is acting up. A typical VCR has 2 reels inside that spins the tape. The left side is the supply while the right is the take up. If the brake (on the left/supply) is engaged (even partially), then the entire mechanism would have a hard time pulling the tape around the video/audio head and would partially be stretching. This would represent itself as jerky audio/video in most instances. There would possible also be a low screeching sound coming from the machine/tape. An indicator would be stretched tape - there would be uneven edges of the tape.
Since this is an electro-mechanical problem, perhaps your best course of action is to seek the services of a qualified video machine technician.
Alternately, it may be possible to loosen things up by first fast forwarding the entire tape and thereafter rewinding fully before you play it.
Hope that this be of some help/idea. Pls post back how things worked out or should you need additional information.