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This topic comprises 2 pages: 1 2
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Author
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Topic: Smart Mod IIC Question
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Oscar Neundorfer
Master Film Handler
Posts: 275
From: Senoia, GA
Registered: May 2000
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posted 10-24-2000 11:13 AM
Dustin,Please do put the format card in and see what happens. I went back and re-read your original post where you were asking about having the MOD IIC default to MONO. You said the problem was happening pretty much every day. Now the problem did not happen for about 10 days after you put in the new matrix card. I started thinking (and boy did that hurt) whether you had ever tried switching the MOD IIC to MONO or BACKUP when the problem occured. If so, was MONO or BACKUP working OK? I am trying to determine if it is something outside the MOD IIC (like in the soundhead) that is not working. I did not see anything posted here that directly addressed this. Please let me know if you know whether you could switch to MONO or BACKUP and get your sound back. (You may have told me this in a phone conversation, but I do not recall.) In any event, let me know what happens. ------------------
Oscar Neundorfer
Chief Engineer
SMART Devices, Inc. oscar@smartdev.com
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Dustin Mitchell
Phenomenal Film Handler
Posts: 1865
From: Mondovi, WI, USA
Registered: Mar 2000
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posted 10-24-2000 06:10 PM
Well, didn't get the format card in today. Seems they have a hard time figuring out if I'm a manager or a projectionist, spent almost the whole day in the office, but that's another story....Anywho, yes, the Mono worked just fine during the failures, and continued to during the Sunday incident. Another wierd thing though, now the chain levels for SR are messed up. What I mean is, The surrounds are way louder than they should be. Please don't tell me I should hve done an A-chain or B-chain-whichever one it is-when I swapped out those cards, because I don't have the equipment to do that  . Thankfully the DTS is still just fine.
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Oscar Neundorfer
Master Film Handler
Posts: 275
From: Senoia, GA
Registered: May 2000
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posted 10-25-2000 06:17 AM
Dustin,Your answer to the MONO question clears up something for me, that is, the soundhead is OK. So, this puts the problem right back in the MOD IIC. You should not have to do ANY alignment or level setting of any kind when you replace either the matrix or format card. The only thing you MIGHT notice when replacing the format card is an overall level difference which means you would have to set the volume control slightly differently than you ususally do. This was due to 2 different kinds of IC's being used on the format card which affects the volume slightly. Definitely no big deal. Now about the surround levels. With DTS still OK, this eliminates the EQ and OUTPUT cards as the problem, leaving the matrix card as the only card that will affect the surround levels. This ASSUMES that the alignment of soundhead and preamp levels are OK and that NR cards are OK. I assume that your stage channels are fine with regard to overall level and balance. If so, then everything up to the matrix (soundhead, preamp, NR) is probably OK. I know you are having a hard time wearing too many hats, but do change the format card when you get a chance. My bet is still the matrix, but we have to eliminate the format card too. I am guessing that you got a matrix from us that was also intermittent. If so, I sincerely apologize. I will send another matrix card up if the format card doesn't do the trick. Best regards, ------------------
Oscar Neundorfer
Chief Engineer
SMART Devices, Inc. oscar@smartdev.com
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