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Author Topic: SR actin' screwy
Dan Bouvier
Film Handler

Posts: 70
From: Sylvan Lake, Alberta, Canada
Registered: Aug 2004


 - posted 09-11-2004 09:11 PM      Profile for Dan Bouvier   Email Dan Bouvier   Send New Private Message       Edit/Delete Post 
We run Dolby DP55 processors and SRA5 processors. Today, in one auditorium, the only channels that had a signal were Left and Subwoofer. It doesn't just do this with the one feature (and its trailers), but also with a trailer pack I ran through to test it. I switched it from SR to "format 04 stereo" (or whatever 04 is) and all the channels worked then, but then it's not in SR. We use three QSC model ISA 450 amps, with one handling left/right, one handling center/sub, and one for the surrounds.

Any suggestions?

Dan

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 09-11-2004 10:21 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Open the SRA-5 card access (remove grey front panel held on by some splined screws). Swap the two SR cards between each other so left is right and right is left...then play the movie...if the problem moves...you need to RX your bad card...if the problem stays, you need to have the wiring to the SRA-5 checked and if necessary RX the SRA-5 card cage.

Steve

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Dan Bouvier
Film Handler

Posts: 70
From: Sylvan Lake, Alberta, Canada
Registered: Aug 2004


 - posted 09-12-2004 01:25 PM      Profile for Dan Bouvier   Email Dan Bouvier   Send New Private Message       Edit/Delete Post 
Okay, so I swapped the two 280T cards and the problem stayed the same - only Left and Sub worked. When I swing out the sound rack will there be anything noticeably wrong? Or should I just check any connection I see and hope for the best? Also, if Left is working, why doesn't Left Surround work? I'm just curious.

Update: A green wire leading from the SRA-5 into the CP55's 222 card seems to have come undone. It's electrical-taped back in place till I can convince my boss to get a soldering iron.

Thanks a lot Steve!

[ 09-12-2004, 02:59 PM: Message edited by: Dan Bouvier ]

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002


 - posted 09-12-2004 07:50 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
Your boss needs convincing to spend $10 to make a fix that will prevent you from losing a show? That's sad.

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Cam Jones
Film Handler

Posts: 35
From: Calgary, AB, Canada
Registered: Sep 2004


 - posted 09-12-2004 11:51 PM      Profile for Cam Jones   Email Cam Jones   Send New Private Message       Edit/Delete Post 
But thats life... Luckily Dan can fix anything with electrical tape/duct tape so at least the show can run and buy some time to convince the boss to fix something correctly!

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Dan Bouvier
Film Handler

Posts: 70
From: Sylvan Lake, Alberta, Canada
Registered: Aug 2004


 - posted 09-13-2004 02:59 PM      Profile for Dan Bouvier   Email Dan Bouvier   Send New Private Message       Edit/Delete Post 
quote: Daryl C. W. O'Shea
Your boss needs convincing to spend $10 to make a fix that will prevent you from losing a show? That's sad.
It's a pretty ridiculous place sometimes, but it's fun. Stay tuned for more pleas for help!

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