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Thread: Replacing a Rear Projection CRT Screen

  1. #1
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    Replacing a Rear Projection CRT Screen

    Finally got around to setting up my Rear Projection CRT monster. Only to realise that there's a big slash in the screen. You can see it in this picture between the T and the S, it is far far worse when viewing straight on.

    It seems to me like it should be replaceable, but I have no idea where to start finding a replacement...

    Any advice/experience/pointers on doing this would be appreciated!

    Hitachi C4678FS is the model.

    IMG_20190810_163428754.jpg

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    Looks like a damaged Perspex diffuser. You would be best to get one from a wreck of the same size or a larger one and cut it to size.

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    The screen is called a perspex diffuser? I was very excited learning this but still can't find anything online.

    Can it be from any Rear Projection CRT? I assume it can't be from the LCD ones.

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    There'd be a more technical name for it but yes. It's only there to enhance the picture.
    I'd say yes, they all seem to do the same job. If you run your fingernail from left to right on the Perspex screen it'll feel corrugated vertically.

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    Perspex diffuser? Is that the same thing as the Fresnel Lens? That's the corrugated sheet to help spread the light? I know jack-all about RP sets though, so i wouldn't trust myself to be right. Was it @Berty who was messing around with one of these recently?

    EDIT: totally awesome choice of game though. One day i need the ability to pay Radiant Silvergun, but MAME just seems to chew on it and get massive slowdown.

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    I reckon you're right on the technical name for it. And yes it spreads the light. It also makes it harder to see the image on certain angles I've found.

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    I have a big working Panasonic RP TV i'm wanting to sell if you interested. The projection screen on mine has a RGB matrix like on a Colour TV tube.
    Attached Images Attached Images

    Gemini2544's 4th Pinball meet Saturday 21/03/2020



  8. #8
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    What's the model?

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    Quote Originally Posted by Plasia View Post
    What's the model?
    The model...Big bugger.. I'll need to go up to the shed to get the number off it. I'll let you know tomorrow.

    Gemini2544's 4th Pinball meet Saturday 21/03/2020



  10. #10
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    It's a Panasonic model TX51GF85H I think that means it's a 51" or 1295mm Diagonal.

    Gemini2544's 4th Pinball meet Saturday 21/03/2020



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