How to wash the cleaning roller. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Телевидение
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VCRs and video players equipped with an auto-cleaning unit require virtually no manual cleaning at the start of operation. Unfortunately, after two or three years, or even less, depending on the number and quality of videocassettes watched, the auto-cleaning roller, made of synthetic material, becomes dirty and ceases to perform its function. Cleaning the video heads manually restores their normal operation only for a short time, since the roller itself begins to contaminate them, and cleaning itself is necessary.
Due to the absence of such a unit in repair shops, it is necessary to dismantle either the entire auto-cleaning unit, or only the roller. With all the variety of design implementation of the assembly, dismantling does not cause any particular difficulties: it is enough to remove the lock washer and the roller can be freely removed from the axle.
The proposed method for restoring the working capacity of the video is as follows (radio amateurs have a large field of activity here): you need to "wash" it. To do this, take half a glass of warm water and stir in it one teaspoon of any erasing powder. The roller is first placed in the resulting solution for 15 ... 20 minutes, after which they begin to "wash" it with their fingers, squeeze it, roll it, scroll it. Then it is rinsed in clean water, again placed in the solution for one or two minutes and again "washed".
Twisting, turning inside out, and also making great efforts should not be. "Washing" is repeated 5-10 times until the roller is acceptable clean. The last time it is thoroughly washed in clean water and left to dry at room temperature. It is not necessary to put anything on the roller when drying.
After complete drying, the roller is installed in its workplace.
The described method of restoring the performance of the video has been repeatedly tested, and the result has always been positive.
In some models of VCRs and video players there are cleaning rollers made of foam rubber. Although I did not have a chance to test the proposed method on such rollers, I see no obstacles to using it in this case as well.
Author: N.Kashentsev, settlement of Liman, Astrakhan region
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