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  1. Banned
    Join Date
    Nov 2020
    Location
    Argentina
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    hello, from uruguay

    I have two vhs jvc version HR-D721EN and both play with sound but black image, I already cleaned the heads and it's still the same, if I fast-forward there you can see the rain but then it's black with the play logo. any idea how to repair it or a circuit that is wrong.

    for some reason it is blocking the image

    here a picture

    Image
    [Attachment 63273 - Click to enlarge]


    Thanks so much
    Last edited by langeloso; 11th Feb 2022 at 04:46.
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  2. Capturing Memories dellsam34's Avatar
    Join Date
    Jan 2016
    Location
    Member Since 2005, Re-joined in 2016
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    Check your RF preamp with the oscilloscope to see how the RF envelope looks like, there are test points that you can find according to the service manual.
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