Fairlight-CMI

I wasn't expecting to launch a new call for help so soon on the forum. But unfortunately here goes...

I use my IIx a lot for sampling and have always used the line input to do so.

Now, the line input as well as the mic input don't work anymore. Page 8 shows no incoming signal.

The ADC direct input still does work and I can sample using that input in combination with a DI-box. 
So the problem doesn't appear to be with the CMI02 card.

I've checked the XLR connectors and the cables that go to the CMI-04 board. These connections are still OK. I've also checked the 10-way ribbon cable that goes to the CMI02 card and it's also OK.

I'm having the exact same problem with a second IIx (the one that I was able to bring back to life a few days ago).

My first guess is a problem on the CMI-04 board. But before I start debugging that board I'd like to hear if anyone else has ever encountered this problem and knows what the origin of it might be.

Best,
David

Hi All. If ADC direct works, problem MUST be on CMI-04 on rear panel. Save time and effort by buying my BRAND SPANKING NEW rear panel! It's at: http://www.ebay.com.au/itm/230943778188?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1586.l2649#ht_500wt_1358
Regards, Peter in Sunny Sydney

I had the analog XLR sample inputs stop working in my SIII and after checking the board, pushed down on the socketed IC's and that resolved it. Its worked perfectly ever since. 

Not sure if it helps but it might be worth a try.

Regards, Marty






________________________________
 From: WT <waveterm@telia.com>
To: Fairlight-CMI@yahoogroups.com 
Sent: Wednesday, 13 March 2013, 22:02
Subject: Re: [Fairlight-CMI] Mic & Line inputs don't work, ADC direct does work
 

  
Ask Stephan Schällman, he had the same problem 
earlier. I don´t think he resolved it.
 
WT
 
----- Original Message ----- 
>From: dvdborn 
>To: Fairlight-CMI@yahoogroups.com 
>Sent: Wednesday, March 13, 2013 10:53  PM
>Subject: [Fairlight-CMI] Mic & Line  inputs don't work, ADC direct does work
>
>  
>I wasn't expecting to launch a new call for help so soon on the forum. But  unfortunately here goes...
>
>I use my IIx a lot for sampling and have 
  always used the line input to do so.
>
>Now, the line input as well as the 
  mic input don't work anymore. Page 8 shows no incoming signal.
>
>The ADC 
  direct input still does work and I can sample using that input in combination 
  with a DI-box. 
>So the problem doesn't appear to be with the CMI02 
  card.
>
>I've checked the XLR connectors and the cables that go to the 
  CMI-04 board. These connections are still OK. I've also checked the 10-way 
  ribbon cable that goes to the CMI02 card and it's also OK.
>
>I'm having 
  the exact same problem with a second IIx (the one that I was able to bring 
  back to life a few days ago).
>
>My first guess is a problem on the CMI-04 
  board. But before I start debugging that board I'd like to hear if anyone else 
  has ever encountered this problem and knows what the origin of it might 
  be.

>
>Best,
>David
>
>

Peter - 
How hard would it be to fit the General Interface Unit to your rear panel? (I already have the a GIU on my IIx.)

Also, would there be a "Core Return" if the person that bought your rear panel and exchanged their old rear panel to you?

Thans - 
Kirk
PDX, USA

--- In Fairlight-CMI@yahoogroups.com, "horiprod" <horizontal_productions@...> wrote:

>
> Hi All. If ADC direct works, problem MUST be on CMI-04 on rear panel. Save time and effort by buying my BRAND SPANKING NEW rear panel! It's at: http://www.ebay.com.au/itm/230943778188?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1586.l2649#ht_500wt_1358
> Regards, Peter in Sunny Sydney
>

I'll start by replacing IC9 (LM301). I've ordered a few of them, there are 3 in the input circuits, and go from there.

I'll keep the forum posted. I'm under the impression that more users out there are suffering from the same problem.

Best,
David

You've found the IIx service manual, I trust?

:-D

Joe

Of course :-)

I'd be impossible to maintain a IIx and not have the service manual. 

Cheers,
David

--- In Fairlight-CMI@yahoogroups.com, Joe Sleator <joe.sleator@...> wrote:

>
> You've found the IIx service manual, I trust?
> 
> :-D
> 
> Joe
>  On Mar 15, 2013 8:54 AM, "dvdborn" <dvdborn@...> wrote:
> 
> > **
> >
> >
> > I'll start by replacing IC9 (LM301). I've ordered a few of them, there are
> > 3 in the input circuits, and go from there.
> >
> > I'll keep the forum posted. I'm under the impression that more users out
> > there are suffering from the same problem.
> >
> > Best,
> > David
> >
> >  
> >
>