Question about Panasonic PV-V4021 S-VHS VCR

2 Answers

Picture is jittery and voice is garbled with noise in background

Hi! After I have recorded a program and I want to playback the program the tape runs with a jittery picture and the voice cannot be understood. There is also a background noise. Please help me solve this problem. Thank you. Joan

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  • Japonica Nov 18, 2007

    I have a similar problem when playing back recording in EP. It plays back briefly okay, then there is interference on the screen and noise as well, the briefly okay again, etc. It plays back perfectly when it records in SP. I have checked the same tape on another VCR, also a JVC, and it plays back fine, both EP and SP. I also have played back a tape recorded in EP on another VCR. The interference on the screen disappears and the sound is fine, but the picture is very jittery. Hope you have some suggestions to correct this.

  • Japonica Nov 18, 2007

    I have a similar problem when playing back recording in EP. It plays back briefly okay, then there is interference on the screen and noise as well, then briefly okay again, etc. It plays back perfectly when it records in SP. I have checked the same tape on another VCR, also a JVC, and it plays back fine, both EP and SP. I also have played back a tape recorded in EP on another VCR. The interference on the screen disappears and the sound is fine, but the picture is very jittery. Hope you have some suggestions to correct this.

  • Anonymous Feb 20, 2008

    The picture is unstable (vertical jitter) during play....we have the operating instructions and tried the instructions on page 31 of your booklet..but it doesn't seem to make a difference when doing the instructions. So how can I fix the problem so my granddaughter can watch her video's. Here are the steps I tried with no change. 1) Press the PLAY button. 2) Press the PAUSE/STILL button. 3) Press and hold the CH/TRACK DOWN OR UP button ( or CHANNEL on the front panel) to reduce the vertical jitter. But this did not help!

  • Wilson Warren Jul 04, 2008

    My problem is similar. When I record something it starts out fine, then about 20 minutes in I start hearing a faint intermittent hum or squeal coming from the unit itself. It happens during recording and when I play-back what I just recorded. While you watching the play-back, the picture distorts each time you hear the squeal. This has just started happening. I can play-back store bought videos and videos that I recorded some months ago just fine. I've tried different blank tapes and cleaning the heads. I'm beginning to think I may have to replace the heads.



    Any suggestions,

    Thanks

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I had the same problem recently with a Panasonic PV - V4521 which has worked for years for me. I tried everything including cleaning the heads with Q-Tips and pure alcohol. Nothing improved. I tried tape head cleaners. Nothing. So finally one day, as I was unscrewing the cables, this VCR fell down onto the bottom of my foot and drew blood. Now remember, I had been trying to fix this thing for at least 10 days.
So, I dragged it up and pounded the top of the VCR until the top caved in. Then, I opened my front door and tossed it so hard against the floor of my patio that pieces went flying everywhere. I gathered up the pieces and the twisted VCR, put it in a box, and tosses it real hard into the dumpster. It's fixed. I have no more problem with it.

Posted on Jun 27, 2008

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Dear Joan, before I can help u, can you clarify a couple of points. Did you try your recorded cassetes in another VCR? Did the recording play properly on those? Is yours a Multi-System VCR? If yes, it is possible that you have set the input system to another system than the one you recieve? If you live in Europe, it is possible that you have set the VCR to NTSC recording? (Most of Europe is PAL. Or if you live in the North American continent, which uses the NTSC standard, you might have set the recording setting for PAL, and so are unable to view your recording. Another very common mistake people make is in setting Recording to LP or EP mode, and playing back the same tape in SP mode. Just check your VCR settings. If none of the above things are wrong, then try playing a Head Cleaning cassette. It is remotely possible that the Video Heads or Tracking /Contol Head is dirty. Pravin

Posted on Jun 27, 2006

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Hi,

I beg to differ that the head is dirty. This is based on your post "...pre recorded tape is played the picture is fine..."

I am more inclined to suspect:

  • servo calibration. This would be the capstan motor controller. The recording speed slightly differs with the playback speed. You could try manually adjusting the tracking control and see if it corrects the problem;
  • recording speed selection, LP, SP, EP/SLP. try recording at the lowest speed LP;
  • video source, possibly of a different color system, PAL, SECAM, NTSC.
Hope this be of initial help/idea. Pls post back what is your video source, how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Sep 24, 2008

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