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Author Topic: DA20 to non Dolby Processor Questions
Mitchell Dvoskin
Phenomenal Film Handler

Posts: 1869
From: West Milford, NJ, USA
Registered: Jan 2001


 - posted 09-05-2012 03:22 PM      Profile for Mitchell Dvoskin   Email Mitchell Dvoskin   Send New Private Message       Edit/Delete Post 
I am interested in using a Dolby DA-20 with a non Dolby analog processor. For the moment, I don't care about the automatic reversion back to analog. I assumed the DA-20 will, or can be set to, always output (the converted analog sound) from the Dolby Digital track when it senses a Dolby Digital signal from the reader.

Is this a correct assumption?
Any non obvious things I need to take into account?

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Victor Liorentas
Jedi Master Film Handler

Posts: 800
From: london ontario canada
Registered: May 2009


 - posted 09-05-2012 03:36 PM      Profile for Victor Liorentas   Email Victor Liorentas   Send New Private Message       Edit/Delete Post 
Yes you simply select the always on number under the front cover and it never tries to revert to analogue ever. I forget which number but you can find it in the DA-20 manual.

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Mitchell Dvoskin
Phenomenal Film Handler

Posts: 1869
From: West Milford, NJ, USA
Registered: Jan 2001


 - posted 09-08-2012 05:47 PM      Profile for Mitchell Dvoskin   Email Mitchell Dvoskin   Send New Private Message       Edit/Delete Post 
Thanks Victor.

Another question. I have both a Dolby 701 and a BACP DSTR-20 reader. Other than the Dolby requires it to be plugged into the wall and the BACP is powered by the DA-20, is there any pros/cons for one over the other.

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Sam D. Chavez
Film God

Posts: 2153
From: Martinez, CA USA
Registered: Aug 2003


 - posted 09-08-2012 05:58 PM      Profile for Sam D. Chavez   Author's Homepage     Send New Private Message       Edit/Delete Post 
The short answer is to pick the one with the least worn lateral guide rollers and sprockets.

The DSTR has a slightly sharper and faster lens so lower LED current is needed and maybe a slightly lower error rate.

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005


 - posted 09-08-2012 05:59 PM      Profile for Louis Bornwasser   Author's Homepage   Email Louis Bornwasser   Send New Private Message       Edit/Delete Post 
Nope: properly set up, they are the same. The Dolby would allow you to power from the motor AC voltage. This means the LED is off when stopped, saving the LED.

IMHO:I have never seen a Dolby shipped from the factory in 100% proper alignment. Something mechanical is ALWAYS not quite right, especially around the dancer arms and dashpot. Louis

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Mitchell Dvoskin
Phenomenal Film Handler

Posts: 1869
From: West Milford, NJ, USA
Registered: Jan 2001


 - posted 09-09-2012 12:46 PM      Profile for Mitchell Dvoskin   Email Mitchell Dvoskin   Send New Private Message       Edit/Delete Post 
Thank you Sam & Louis.

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