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Help! grass 141 monitor dead, other VGA monitors don't work

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Mark Suszko
Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 25, 2006 at 6:22:01 pm

The grass valley 141 linear edit controller has been in use in our shop for maybe 15 years. It's perfect for a lot of jobs that make no sese to do on the NLE system.

However, the monitor for ours died recently, (power supply or flyback transformer) and we tried several other VGA monitors around the shop, none would read what seems to be a proprietary scan rate or something.

We threw three scan coverters at it to see if we could take the signal to a TV set. No dice; either no picture at all or locked up digital snow.

It was made by electrohome. I don't know what I'm going to do yet. Besides edit a 2-hour talk show in beta, machine-to-machine, arrgh. Any ideas?


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tony salgado
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 26, 2006 at 3:42:07 am



I have a CMX-3600 edit controller I will gladly sell to you cheap.



Tony Salgado


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Randy Pfeiffer
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 27, 2006 at 12:19:01 am

Hi Mark

We use a grass 241 and had a similar problem. I believe that the 241 used a CGA monitor and we ended up getting a CGA to VGA converter to allow the use of a VGA monitor. You might check with Editware http://www.editware.com to see if they still support the 141 (and if they still carry the converters)

HTH,
Randy


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Randy Pfeiffer
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 27, 2006 at 12:51:43 am

After some scroungin' found this link: http://www.editware.com/Editware-DOCs/cgavga.pdf


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Mark Suszko
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 27, 2006 at 7:04:06 pm

Thanks for the scrounging-up of that document, I passed it on to the engineer, though reading it, it says the scan doubler is not for the model 141.

I have restored partial screen functionality using another borrowed ancient monitor... it was no better at first than the others we tried, but then I ran the 141's VGA output thru our $6,000 Communication Specialties Scan-Do-Pro scan converter/video scaler. Yeah, a 6k scaler to make a 10-dollar junk monitor work... THAT is not a long-term tenable setup!

Using an output setting I think is called "PC 640", I have *some" of the display (and some garbage alongside) back and readable enough to see the right hand side data and things like duration, and I can guess the rest, enough to finish the current project. Not so surprisingly after all these years of use, I find the hands run the controller well without needing as much reference to the display as one would presume. Then again, most of what I do is cuts, dissolves and fades, can't even remember the last time this system commanded a wipe.

The original monitor cannot be repaired. Some protection relay in it is clickig like the turn signal of an old man's Buick Roadmaster. The flyback xformer and all the crt drive electronics are in an encapsulated moduel that's not repairable. I wish I knew more about this nonstandard display format the 141 uses, and how we could adapt somethign else around here to read it. This system could go another decade as long as there was a monitor that worked.


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Mark Suszko
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Oct 27, 2006 at 7:42:08 pm

Update:

Editware is still alive, it turns out,
(surprisingly NOT yet bought up by Pinnacle!)
and they sell a doohicky for $600 that will adapt the old output to run on any modern VGA display. So maybe I can put a neat flat-panel LCD on the old 141 and "rice it out" with flames and air dams and neon tubing...:-)

Thanks everyone for the suggestions.


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Arson XL
Re: Help! grass 141 monitor dead, other VGA monitors don't work
on Nov 4, 2006 at 2:50:16 am

dont forget to lower it
maybe some chromed out shoes

the more stickers you add the faster it will go!



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