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  #1  
Old 04-21-2023, 03:48 PM
fatass66 fatass66 is offline
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Default 192 IO main board 50 pin slots to ad/dc cards

Can anyone tell me which numbered slot on the "main board goes to which card?
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  #2  
Old 04-21-2023, 04:18 PM
Darryl Ramm Darryl Ramm is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

The 192 IO Reference Guide has all the info you need. PDFs online.
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  #3  
Old 04-22-2023, 11:07 AM
fatass66 fatass66 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

Well, maybe I'm blind but none of the pdf files i've found so far include that information. Also, google search for 192 IO Reference Guide returns nothing.
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Old 04-22-2023, 11:26 AM
fatass66 fatass66 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

Maybe I'm not being clear enough. I have the guide that states which cards must go in which bay. What I need to know is which slots on the main board go to which bay. When I dissassembledmy 192, I found it had the ribbon cable from slot 4 running to the digital card in bay 3. I bought the unit used and have yet to even power it up. It was full of dust so i broke it down to clean it. Just trying to make sure all is right before trying to test it.
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Old 04-22-2023, 02:08 PM
Darryl Ramm Darryl Ramm is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

Uh yes that's not what I thought you were asking. Not sure that info is anywhere.

Avid was pretty good about silkscreening PCBs... you sure there are no labels on the board?
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  #6  
Old 04-30-2023, 08:49 AM
fatass66 fatass66 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

I remember the pcb board silk screening does label each slot as Slot1, Slot2, Slot3, and Slot4. I don't recall it saying anything else but I don't have the board in front of me at the moment but IIRC there aren't any other labels.
I am wondering if Avid/Digidesign considers it top secret information /not-very-intellectual property. I mean really, nobody can tell me?
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Old 04-30-2023, 01:10 PM
Darryl Ramm Darryl Ramm is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

Avid is just absolutely awful about releasing any internal/hardware repair oriented documentation. It would take another user to disassemble their 192 to get you an answer, or maybe a technician or owner who has worked on one in the past and remembers what you are asking.... both likely not too common on DUC.
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  #8  
Old 04-30-2023, 04:38 PM
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albee1952 albee1952 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

Okay, Since mine is out of the rack at the moment, I opened it up. Mine is the "standard" version with analog in, analog out, digital IO and a blank. The slots on the main board are numbered from the end as 2-1-4-3.
So on the rear, looking at the 4 slots:
upper left is #1(analog input)
Lower left is #2 (analog out)
Upper center is #3 (Digital IO)
Lower center is #4 (optional card)

It occurred to me that maybe you only pulled the cards and didn't dig all the way down(which I did), so consider 2 things:
1-the cables might be laid out in a fashion that puts each end where it needs to be by default
2-remove the PSU board(6 screws) and remove the metal shield(another 4-5 screws) and that will reveal the 4 numbered slots(so you can trace each cable). While I had mine open, I took a Sharpie and labelled mine(would have been nice if they did that at the factory.....). Hope you get it sorted
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Last edited by albee1952; 05-02-2023 at 07:38 AM.
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Old 05-04-2023, 12:10 PM
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albee1952 albee1952 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

So was this any help?(and yes, I AM not too common)
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  #10  
Old 05-25-2023, 10:57 AM
fatass66 fatass66 is offline
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Default Re: 192 IO main board 50 pin slots to ad/dc cards

I aint been around due to trouble with both hands.
It turns out i either just lucked out and plugged
everything back in to the main pcb correctly,
or it just didnt matter. (I will post how i have them
connected when i can tear it down again...btw i had everthing apart except for the front panel. I wouldnt have been able to see the pcb with the slot number labels without removing pwr supply)
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