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CDROM Back Panel Hook Up - TTL to Toslink Schematics (SPDIF to Toslink)

Most CDROM Drives look like this one from the back.

The Toslink Transmitter (Signal) should be wired to the pin labeled digital.

The power can be tapped off the CDROM power supply.

Please be sure to use the +5 volt source otherwise you might destroy the device with the excess voltage.

Coax to TTL Conversion (Coax to Toslink) Circuit board Layout.

This is for photosensitive copper plates

This is for heat transfer

Note: these images are not to scale.

coax_to_ttl_diagram.pdf