|
|
Author
|
Topic: Dolby CP50 up grade to SR and Non sync switching problem
|
|
|
|
|
|
John Hawkinson
Film God
![](http://www.film-tech.com/ubbmembers/1135b.jpg)
Posts: 2273
From: Cambridge, MA, USA
Registered: Feb 2002
|
posted 08-21-2003 01:01 PM
The jumper to cut is a short wire (.10") labelled J801 (not S801, or near it), and its adjacent to pin 1/pin A of the card-edge connector. It seems you might find it installed on either side of the PCB. The gain for Dolby SR should be 3dB higher than for Dolby A. It's a good idea to run Dolby Tone with the Cat 22, and then run it again with the Cat 280 -- you should get the same exact results.
Can someone explain to me why the Cat280 goes into record mode when pin 1 is hot, unlike the Cat22? It seems so weird that it wouldn't be exactly backwards-compatible.
Oh, also, the Cat280 cards draw more current than the Cat22 cards, and they may push the limit of the CP50 power supplies, so it's good to check to verify your supply is still putting out full voltage.
--jhawk
| IP: Logged
|
|
|
|
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|