Zitat : stego hat am 13 Nov 2023 09:58 geschrieben :

Hello Nicola, have you already checked and cleaned the collector of the head drum motor? Your video on YT looks like a dirty collector or pickup. So first of all remove the cover of the head drum motor and clean the collector and the pickup sliders, after cleaning you can put a little of vaseline on the collector. Also don't forget to clean the contact rings of the DTF system (top of the head drum), and the ground contact on the top center. Best regards, stego

Thanks for your reply Stego. I don't know the components as you call them, (collector, pickup). I'll send you some photos where I'll ask you if I can put Vaseline there. I vigorously cleaned all the guide rollers, removed the pinch rolled parts and washed them with soap and water, cleaned the heads and checked the tape path. Now the line has become smaller and sometimes you don't even notice it but it is always present.
I'll send you a video to understand.
https://youtu.be/HQ__w9196ZQ

Hello Nicola,

i understand what you mean, on your first YT-Video the line was visible.

What I mean, is the motor of the head drum: On the bottom Side you see the head drum motor with its two connections and one capacitor. The head drum is mounted with a hexagon nut, and a black cam drives the head drum.
You have to remove the two screws on the head drum, then remove the hexagon nut and the black cam. Then you can remove the cover of the head drum motor and you see the commutator of the head drum motor. This commutator must get cleaned, and also the two brushes of the commutator.
This is, what produces the sparks on the screen.
If you have the service manual, this procedure is shown in the mechanical part of the SM.

Best regards,
stego

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Zitat : stego hat am 14 Nov 2023 10:07 geschrieben :

Hello Nicola, i understand what you mean, on your first YT-Video the line was visible. What I mean, is the motor of the head drum: On the bottom Side you see the head drum motor with its two connections and one capacitor. The head drum is mounted with a hexagon nut, and a black cam drives the head drum. You have to remove the two screws on the head drum, then remove the hexagon nut and the black cam. Then you can remove the cover of the head drum motor and you see the commutator of the head drum motor. This commutator must get cleaned, and also the two brushes of the commutator. This is, what produces the sparks on the screen. If you have the service manual, this procedure is shown in the mechanical part of the SM. Best regards, stego

Thanks Stego I solved it. There were traces of tape oxide on some guides. I hadn't seen them because they were hidden. I cleaned everything vigorously and now the image is back to normal. I attach a video. I'm happy you helped me.
https://youtu.be/8FyHTc-y9u0

Hello Nicola,

congratulation, that looks very wonderful now.

Offtopic :

I hate watching video tapes on a flat-TV, because the image quality is very poor. For my video recorders I still have two CRT TVs (1x Grundig and 1x Panasonic) in use.

Best regards,
stego


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Zitat : stego hat am 15 Nov 2023 09:25 geschrieben :

Hello Nicola, congratulation, that looks very wonderful now. Offtopic : I hate watching video tapes on a flat-TV, because the image quality is very poor. For my video recorders I still have two CRT TVs (1x Grundig and 1x Panasonic) in use. Best regards, stego

thank you for your precious assistance Stego. I would like to ask you: what does it mean when the Play reproduction has a good image but when I start the recording it is disturbed and of bad quality? I have the service manual, what can I check to find the problem? Same question for fast forward: forward is good, backward is black and white and noisy. Which card should I operate on?

P.S:I had a Loewe 32 inch CRT TV for 25 years, then it broke and I got my first smart TV. You're right, the image in the Loewe was more beautiful

Best regards Nicola

Hello Nicola,

do you mean: At the moment you start recording, the image on the TV is getting poor or do you mean: The recorded tape is poor picture quality?
if the recording is poor: A wear or abrasion of the video heads has a double effect after recording, because first --> Record and second --> Play. Playing an old recording only once has an effect of the old videoheads.
The same effect with the fast picture search forward and backward. It is also possible, that the tape path is a little misaligned. The distortions are more with picture search back than forward.

Best regards,
stego

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