Question about Panasonic AG-1980 S-VHS VCR

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Vcr tape problem

Taped a show on a Fuji SVHS tape on Panasonic PVVS4820 in Super mode. When playing back on Panasonic PVS7670 in certain portions of the tape, the screen goes blue, or goes off tracking, the SP display changes to LP very briefly when these glitches occur, I can hear slight pitch change in the motor mechanism. Other tapes including another Fuji SVHS tape play fine in this VCR. When this tape is played in the recording VCR, the 4820, the tape plays fine. I think it is the tape. Any reason to think otherwise? This has never happened before. The tape has been used a number of times to tape.

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Re: vcr tape problem

It sounds like the tracking information is being lost for brief periods of time. Tracking is recorded at the lower edge of the tape, and if the tape is wrinkled or otherwise damaged in this area, playback will go out to lunch. A visual check of the tape would be in order. Have the heads been cleaned in these machines? This would be another area to check.... Also, there could be small differences in the tape path alignments, perhaps the control/audio head alignment is slightly different between the 2 machines.

Posted on Apr 30, 2007

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I would say that it's because you haven't used the original test tape. Where the recordings that play up done on the model before the problems started? If so then that would prove that the tape is just slightly off. I can't see it being a fake head, nobody would make any money doing fake VHS heads these days!

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It sounds to me like you have a blank tape or an SVHS tape, which won't play on a VHS machine though they look the same tape.

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You can purchase a VCR cleaning tape that will do the job. However the best way is to buy a can of Servisol Video 40 (small one will do and it will last a long time) then remove the top cover of the VCR. Spray the VCR heads. Shinny Silver things and any moving parts that the tape touches. If your not certain what to clean, with the cover off insert a tape and press play. Remove the tape and spray small amounts on the surfaces. If you can see a lot of dust you can wipe the heads etc with a cotton bud. A VCR housed in a smokers house will need extra work to get it clean. Once dry you can test a tape. If you see flecks or spots the VCR will need further cleaning.

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This may be caused by the mode switch.
By the way it uses a K-Deck Mechanism.

Sep 11, 2009 | VCRs

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If you are recording the tapes in a slow speed, then I would suspect that the tracking pulse is not being recorded properly. Since this is a new VCR, return it for an exchange. One of the recording heads is bad.

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1 Answer

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This problem is undoubtably dirty or worn video heads. Try using a good quality head cleaning tape. If this fails, re-post, and I will explain how to clean heads by hand.

Dave Duff

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I have a Sony SLV-EZ717

It sounds like the taped program was recorded on a different speed. The other VCR that you are playing the taped program may not have the speed needed to play it correctly.
Next time when you record a program try to make sure you use a speed that will be compatible on both VCRs.
For example a tape that last 120 minutes, using the different speeds will give the following recording times.
SP means "Standard Play" >>>> 2 hours
LP means " Long Play" >>>>> 4 hours
ELP means " Extra Long Play" 8 hours

Older VCRs have all the 3 speeds but newer ones only have SP and ELP.
Hope this helps.

Jan 25, 2008 | Sony SLV-N750 VHS/S-VHS playback VCR

1 Answer

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buy a new damn vcr o ya We r in the 21st century we now use dvd's go get ya self a dvd player abd you wont have that problem.

Dec 10, 2007 | VCRs

1 Answer

Tapes not playing

Hey do the tapes play at all? sometimes some tapes recorded
on other machines won't play on others. maybe you need to adjust the tracking on the VCR you are playing it on. If the tape
was recorded on a VCR that is misaligned it might not play back
on another VCR. Also the tape may have been recorded on a
super VHS VCR in et (extended definition) mode if so they won't play on just any VCR. If the picture looks scrambled like a
premium channel on analog cable then it's probably recorded in et.
and if its recorded on super VHS tape it may eject out of your VCR.
They don't make these S-VHS vcrs anymore but people still
have them around. There is also Digital VHS they're not
compatible with VHS either. A VHS recorded in et mode will
play on some more expensive vcrs it should say so on the box
or instructions.

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try recording on a blank tape and setting the tape speed to SP (standard play). you should also see options for (LP-long play) and SLP (super long play). I think your machine is stuck on SLP option. if no-go, look for a manual on the web.

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