Re: 41cx Card reader problem Message #9 Posted by Andrés C. Rodríguez on 15 Aug 2000, 1:09 p.m., in response to message #1 by Glenn
Some comments:
Cards getting old: time will not damage your cards, but dirt, grease, magnetic fields and heat may damage them.
Speed considerations: I think the cards are written with a self clocking signal, or with a clock track (written at the same time than the data). This allows for some speed deviations without causing problems. Of course, a large deviation may be out of range and cause failures.
New pinch roller: In my own experience (may not be your case), the airplane model tubing was not circular enough, and that caused slipping and speed irregularities. I had better results after a second repair with rubber o-rings.
Head alignement: good suspect because you can read newly written cards, but nor cards previously recorded. But not easy to detect and correct due to the mechanical construction of the reader. You may check if the head is properly seated, etc...
Dirty head: bad suspect, it should affect both new and old cards.
I hope some of this may help as guiding ideas.
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