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Subject: Re: Pianocorder tape deck

Mark Fontana
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Date Posted: 12:23:55 10/10/18 Wed
In reply to: Chris 's message, "Pianocorder tape deck" on 10:02:06 10/10/18 Wed

The PT-100 cassette deck doesn't produce an audio signal, so you can't connect it to speakers or other audio components. The data signal is squared-up 0-10V biphase and will likely overpower and damage audio equipment. It's easiest and best to test it on an actual Pianocorder, especially if you plan to sell it. If one is not available, you can test basic mechanical operation by supplying 12VDC and ground (no 5V supply needed). While playing a Pianocorder cassette, you can examine the digital output on an oscilloscope if your 12 VDC supply is a safe, benchtop style or ATX computer power supply. WARNING: If using a Pianocorder power supply, don't probe the cassette deck signals with any test equipment unless you have an isolation transformer and skill in troubleshooting "hot chassis" electronics.

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