[Coco] Extron DVS 304 with a CoCo3

[Leslie Ayling]

Hi Frank, et al.

 

> There is an RGB connector that can be used with the CoCo3, but you will have to make a cable

> Hopefully the person who originally posted the info on the Exatron will post how he made a cable...

 

No problem. The VGA unit is the model I use with a CoCo3, but the DVI model has the same inputs.

 

The setup guide for the earlier VGA model is here:

https://www.extron.com/download/files/userman/68-1039-50DVS304SeriesSetupGuiderevAweb082709.pdf

 

I used a cheap (VGA) DB15HD <> BNC cable: https://www.ebay.com/itm/162500048278

which I cut the BNC plugs off to get the individual Red, Green, Blue, HSync and VSync signals and shields.

 

You may need to test which wires are HS and VS, the rest are colour coded.

 

The DB15HD end connects to input #4 on the scaler.

 

 



 

Pinouts on the CN3 RGB connectors I used are:

 

1 GND Ground

2 GND Ground

3 R Red

4 G Green

5 B Blue

6 KEY – No Pin

8 HSYNC Horizontal Sync

9 VSYNC Vertical Sync

 

Once wired up and turned on, I select input#4, and RGB mode.

If that is the only input you have connected, it will find it automagically.

The select the output mode you want. 

A multiple of the original screen dimensions is usually best. 

Video source can also be centred vertically and horizontally on the screen.

Once done, it can be saved as a preset. 

 

It’s a broadcast quality, professional unit, with many options. Takes a little bit of time to setup and get used to.

 

Upgrading to the latest firmware (free download from Extron) is recommended. 

 

As you can see, they are available at a fraction of their new coast on Ebay.

 

I’ll post some pics on the weekend for anyone interested (Paul Shoemaker for one).

 

Cheers,

Leslie

 

 

 

 

-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Francis Swygert
Sent: Monday, 4 December 2017 3:35 AM
To: coco at maltedmedia.com
Subject: Re: [Coco] My Systems

 

The Extron Video Scaler should work for all CoCos. There is a composite input, but no RF -- so you'd have to either use an RF to composite box or modify the CoCo to deliver composite. There is an RGB connector that can be used with the CoCo3, but you will have to make a cable. Hopefully the person who originally posted the info on the Exatron will post how he made a cable...

 

 <https://www.ebay.com/itm/132419438855> https://www.ebay.com/itm/132419438855

 

Docs here:

 <https://www.extron.com/product/product.aspx?id=dvs304> https://www.extron.com/product/product.aspx?id=dvs304

 

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DVS 304 DVI | Extron

The Extron DVS 304 DVI is a Video and RGB Scaler incorporating advanced scaling technology from Extron as well a...  |   |

 

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The current version has a DVI output, which can be used with an HDMI adapter. New they appear to be over $1000 -- used on e-bay for $40 (older non-DVI version) on up. There is a lot of six on e-bay now for $299, but they ARE NOT the DVI model as listed, but the older model. For CoCo use it doesn't matter, as long as you have a monitor/TV with VGA input (or use a VGA to HDMI adapter...)

 Frank Swygert

Fix-It-Frank Handyman Service

803-604-6548

 

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