Film-Tech Forum ARCHIVE: JSD-80 sound processor connection to a dolby reader

This is topic JSD-80 sound processor connection to a dolby reader in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Mike Moreno (Member # 4887) on 12-26-2011, 02:55 PM:

hi every one.
happy holidays by the way.
i have a JSD-80 sound processor in stock and i wonder if it can be connected to a dolby reader. we are using CP650 but in case someone fails i would like to be ready.

thanks for your help.

mike moreno
mexico

Posted by Scott Norwood (Member # 30) on 12-26-2011, 03:06 PM:

You would need a DA20 and some custom cables to make this work. It has been done, but it looks like a pain.

Posted by Mark Gulbrandsen (Member # 72) on 12-26-2011, 06:33 PM:

It actually should not be very difficult because the JSD-80 is more or less pin for pin compatable with the CP-650. Lord only knows why the JSD-100 was not made the exact same way [Confused]

. I have pulled many CP-650's and installed JSD-80's in their place with only having to actually connmect just a very few wires.

Mark

Posted by Dave Macaulay (Member # 813) on 12-27-2011, 08:04 AM:

Like Scott says, the "Dolby Reader" does not supply audio information; it's just a sort of video camera that sends an "image" of the SR-D track to a CP650D. This video is decoded into 6 channel audio in the CP650. To use a JSD-80 you also need a SR-D adapter/decoder - the only one is the Dolby DA20 (ok, there's also the obsolete DA10 if any are still operable).
Conceivably you could have a CP650SR (no SR-D ability) and also a DA20 but this configuration is unusual.
If you do have a DA20 available it is pretty easy to connect to a JSD80. But you would have to have your A and B chain alignments redone, this was done and is saved in the CP650. There's no way to transfer the data to your JSD.

Posted by Louis Bornwasser (Member # 3063) on 12-27-2011, 08:09 AM:

Of course, it will work perfectly as is in Analogue! Louis