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Old 2nd Dec 2021, 3:59 pm   #29
hillsrob
Tetrode
 
Join Date: Apr 2021
Location: Wimbledon, London, UK.
Posts: 56
Default Re: ITT Nokia S-VHS VR 3799 Video Recorder - Information Needed

Quote:
Originally Posted by vhs doctor View Post
Yes I mean backwards with the picture. You are looking if the VCR "read" or "ignore" the transparent part of the tape.
I understand. I did a test today and can confirm that in REVIEW say from a few metres into the tape it runs backwards and overshoots the beginning of the clear part of the tape a little but stops and winds forwards till the magnet tape is blocking the LED and then it goes to STOP.

I looked carefully at the brake pad on the take up reel which perhaps needs a clean or replacement. I could not find this part online. Sanyo part number 613 022 0196 or 613 022 0106.

I turned my attention to the supply reel brake. This mechanism puts spring pressure on the back tension band to effect the braking function. The back tension band is very worn at the point of contact with the reel. See pictures. This part is available online. Sanyo part number 613 021 9701.

It occurred to me that as the majority of the tape mass is on the supply reel, poor braking of the supply reel may have most of an effect on overshoot at take up reel and vice versa. Ideally I should replace both the take up reel brake pad and the supply reel back tension band.
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