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 Post subject: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 8:33 am 
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I know there isn't much hope, but then again, it's worth a shot :( .
I plugged in my Luna Box's (?) z-link cable the wrong way around, which I realized just when I thought "I shouldn't need to apply that much force ..." And it looks like I damaged something (I know z-link carries power :roll: ). I tried 3 cables and 3 Luna cards, it's basically the same: when plugging in all the LEDs in the box flash red for a second and that's it. In Scope the "connected" indicator keeps flashing rather quickly and irregularly. Any thoughts - please?!?!

Btw, I was in the process of changing my DAW from ACPI into "Standard PC" when this happened - could there be any connection?

Any ideas will be much appreciated - I love this little box :cry: .

Martin

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 9:45 am 
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i would think there are fuses that blow for this situation inside the box

how did you manage to plug a fire wire cable the wrong way its flat one side and hexagon the other side


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 10:38 am 
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I would think there's a fuse but I can't identify it.
And yes, the plug is more or less foolproof, but then it's only thin sheet metal, and with a little determination, while working with one hand on the back of your pc, not seeing anything, it's quite possible (QED) ....

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 11:29 am 
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fuses are some times look like an smd ic with just 2 legs but are infact fuses

i replace these with resettable fuses that go open circuit when there is a short

then reset them selves once cooled down

i dont have your model of i/o box


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 12:27 pm 
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jhulk wrote:
i dont have your model of i/o box

That's a pity, you seem to know your way around with a soldering rod. Anyway, thanks for the smd fuse tip, I'll have a look at these.

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 12:35 pm 
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open it up and take pictures for me close ups i can tell by looking at pcbs

if they have fuses and what types

as i work on component level and diagnostics and pcb design and circuit design

its my day job repairing synths samplers amp mixers outboard gear

and making specials for customers and designing and making upgrades for old tech to bring them closer to new tech


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 1:07 pm 
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Thanks a lot for your help. I've attached a picture of the components next to the fw port - would the encircled thingys be fuses?


Attachments:
luna fw port.jpg
luna fw port.jpg [ 146.36 KiB | Viewed 1608 times ]

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 1:52 pm 
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no there ferrite beads

theirs one right by the side of it not the back of it


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 1:54 pm 
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the lm317 is a power regulator


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 1:56 pm 
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its a linear ldo it has voltage in and then a regulated voltage out

check the positive led and trace back to the connector there should be a inline fuse smaller than those ferrite beads


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Tue Jan 07, 2014 1:58 pm 
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once you trace that leg if you find a inline fuse use a continuity tester available on all small ac/dc digital meters it has a bell if its blown you wont get the bell sound if its ok you will


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Wed Jan 08, 2014 1:42 am 
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Jhulk, I'm afraid this is beyond me ... I'll post two more pics, maybe you can point me towards something fusey. I can solder and desolder components, but that's it.
Btw, I noticed the whole section in the pics gets warm when plugged in, even though nothing else happens.

Has noone else ever had the "connected" light flashing in the Samplerate window?


Attachments:
File comment: The fw connector with the two ferrite beads is on the right
luna fw part 2.jpg
luna fw part 2.jpg [ 181.78 KiB | Viewed 1567 times ]
luna fw part 1.jpg
luna fw part 1.jpg [ 188.79 KiB | Viewed 1567 times ]

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Mon Jan 20, 2014 6:38 am 
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Hi, Martin

if you can't get it fixed, I have a used one but near new that might interest you,

regards,

Didier


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Thu Jan 23, 2014 6:02 am 
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Didier,
thanks for the offer - how much are you looking for?
At the moment I'm waiting for the parts to make an stdm-cable for four cards which would give me 4 analog I/Os (if it works ...) so I'm not sure if I'll need a new box right now. I'll let you know.
Martin

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Mon Jan 27, 2014 10:58 am 
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ok, let me know and we'll discuss the offer..


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Fri Oct 14, 2016 4:15 am 
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Sigh! I believe it's finally happened to me as well. All the lights went out last night. I unplugged Z-Link cable, re-plugged. No lights. Went through the drills. Restarted Scope, rebooted, changed cables. The "best" I got was all the lights flashed red when I plugged in the cable. Then blank. Changed cables, same deal. :cry: Well it faithfully served me for over 15 years. :D I suppose eventually I'll replace it but most of the outboard hardware it handled has been sold over the years for software.

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Fri Oct 14, 2016 5:47 am 
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ronnie wrote:
Sigh! I believe it's finally happened to me as well. All the lights went out last night. I unplugged Z-Link cable, re-plugged. No lights. Went through the drills. Restarted Scope, rebooted, changed cables. The "best" I got was all the lights flashed red when I plugged in the cable. Then blank. Changed cables, same deal. :cry: Well it faithfully served me for over 15 years. :D I suppose eventually I'll replace it but most of the outboard hardware it handled has been sold over the years for software.

How did it happen ? Did you touch it ? Was it during using it ? By loading Scope project with luna I/O ? You are worrying me ! I've got 2 lunas since 2001 !

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Fri Oct 14, 2016 1:40 pm 
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I noticed that the power light was out. I unplugged and re-plugged in the cable. No joy. Did it again and then channel 3,4,and 5 lit up... but nothing was feeding those channels. Unplugged and plugged in again - it's possible that I plugged in the cable upside down!!!! No joy. Unplugged and re-plugged, lights flash red for a split second and that's it. That's what happens now. Maybe I fried something by plugging in upside down, on the Luna card or the box... the Luna works fine.. no Assertion failed on either the Source or Dest Z-Link modules. It's not a big deal, I have sufficient I/O but I just miss the box nice and lit up in the rack with the leds doing their thing when in use. I can't complain - it's lasted so long.

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"I’ve come to the conclusion that synths are like potatoes, they’re no good raw—you’ve got to cook ‘em, and I cooked these sounds for months before I got them to the point where they sounded musical to me." Lyle Mays


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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Fri Oct 14, 2016 4:03 pm 
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Image

FEAR !

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 Post subject: Re: Have I killed my 2496 i/o Box??
PostPosted: Sat Nov 26, 2016 6:49 pm 
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I opened the case and visually, nothing is burned or smells. As far as I can tell it looks brand new. I wouldn't know what to look for or try. I have a good meter and a digital probe somewhere. Any ideas? I miss ZLink, :cry: a really solid interface.

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"I’ve come to the conclusion that synths are like potatoes, they’re no good raw—you’ve got to cook ‘em, and I cooked these sounds for months before I got them to the point where they sounded musical to me." Lyle Mays


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