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Old 22nd Sep 2022, 9:42 pm   #7
DMcMahon
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Location: Worthing, West Sussex, UK.
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Default Re: Telefunken magnetophon C 2200 hifi Cassette Deck

Getting back to this to check it out further before selling it.

While rechecking the DIN inputs/outputs pin outs as shown on the schematic in the Service Manual, got side tracked looking at the various electrical set-ups and am struggling to understand Step 5 "Tape Speed Control".

It shows a 3,150 Hz speed test cassette playing and motor speed adjust potentiometer R913. But I cannot really understand the little drawing showing 3 times of 99.5 sec, 100 sec & 100.5 sec, I assume the target time is 100 sec with a +/- 0.5 sec allowable tolerance, but cannot see how this is measured or what the times actually equate to.

There is no text to expain Step 5.

Probably just me being thick, I am sure somebody will be able to explain it.

David
Attached Files
File Type: pdf Step 5x.pdf (192.1 KB, 42 views)

Last edited by DMcMahon; 22nd Sep 2022 at 9:51 pm.
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