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1100 man · 17th Nov 2018, 10:03 pm

I found using a 3V29 to record and play 405 tapes, that the drop out compensator got in the way on playback. This caused a 'ghost' image about a third of the way across the screen. I seem to recall (I would need to look at the circuit again) that shorting out the delay line for the DOC cured the problem. 625 tapes really did need the DOC to be working though as the dropouts were very obvious.

Cheers
Nick

17th Nov 2018, 10:03 pm	#9
1100 man Octode Join Date: Apr 2016 Location: Ventnor, Isle of Wight, & Great Dunmow, Essex, UK. Posts: 1,377	Re: JVC 7700EK VCR 1980. 405 line recording. I found using a 3V29 to record and play 405 tapes, that the drop out compensator got in the way on playback. This caused a 'ghost' image about a third of the way across the screen. I seem to recall (I would need to look at the circuit again) that shorting out the delay line for the DOC cured the problem. 625 tapes really did need the DOC to be working though as the dropouts were very obvious. Cheers Nick