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luRaichu

04-12-2026 08:21 PM

Canon VR-HF720 dim band on picture / bad sound

https://www.youtube.com/watch?v=mAesU8hz8PU
The video linked above shows just about everything you need to know.
I've never done repairs on a VCR before, every deck I've had previously just worked...

redk9258

04-13-2026 04:31 PM

Have you tried other tapes? Are the heads clean?

luRaichu

04-13-2026 06:45 PM

Quote:

Originally Posted by redk9258 (Post 3266987)

Have you tried other tapes? Are the heads clean?

I tried a commercially duplicated tape, sound was better but the noise faded in and out & picture had light/dim bands.
I cleaned heads with paper & alcohol. Noticed some dark residue in one of the grooves on the drum

redk9258

04-14-2026 05:05 AM

Is there a tracking control? Do you have an oscilloscope?

luRaichu

04-14-2026 08:10 AM

I'll have to look. I own a Tektronix 422, 15 MHz scope

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