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Subject: Re: 3/4 bit and range control. Lights on Nobody home.


Author:
Mark Fontana
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Date Posted: 06:21:25 12/08/16 Thu
In reply to: Mike Trapper 's message, "3/4 bit and range control. Lights on Nobody home." on 20:36:07 12/07/16 Wed

Try turning the 3/4 bit and range dials back to factory default settings (arrows pointing out perpendicular to the board) - those are the least likely source of trouble. Check that the tape's spring-loaded felt pressure pad is intact. Slowly try various positions of the Fine Tuning control and tempo control. Check that the tape head is actually contacting the tape. You can also download these test tracks in MP3 format and play them into the cassette deck (with PLAY depressed) via one of those cassette adapters (tape shell with a mini headphone cable connected to it, for playing mobile devices through cassette players in cars).

If you're still having no luck, try disconnecting the three note driver boards from the playback board and seeing if the Fine Tuning light will go out when you play a tape (indicating the signal is being decoded properly), even though the system obviously won't play.

Never touch any Pianocorder components while the system is plugged in, as there is high voltage present even in areas that look like they would be low voltage. Unplug the Pianocorder and wait 1 minute before making the changes I described above.

Any parts you might need are available from Randy Cox at 714-404-2635.

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Replies:
Subject Author Date
Re: 3/4 bit and range control. Lights on Nobody home.Mike Trapper18:32:10 12/08/16 Thu


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