Pioneer PD-S602

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It's possible I have added a digital-out to my pioneer pds505. I tapped the signal from the the opto-coupler (labeled digital at the pcb) and connected a hex-converter.

Code:
                            |\
                      +-----| O-----------+
                      |     |/            |               S/PDIF output
                      |                   |  150nF        (RCA or BNC)
             |\       |     |\            |   ||        
TTL level ---| o------+-----| O-----------+---||-----374R---+----- center pin
signal       |/       |     |/            |   ||            |
                      |                   |                 |
                      |     |\            |                93R1
                      +-----| O-----------+                 |
                      |     |/            |                 +----- ground
                      |                   |                 |
                      |     |\            |                ---
                      +-----| 0-----------+   
                      |     |/            |
                      |                   |
                      |     |\            |   
                      +-----| 0-----------+   
                            |/

                          74HTU04

http://www.epanorama.net/documents/audio/spdif.html
 
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