Will this work?

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I'm getting my hopes up here.

With all the video stuff I got the other day, there was a 20" professional monitor that was used with the toaster.  I noticed on the back that there were BNCs for all sorts of different types of connections.  One set is labeld RGB.  Would this be the same RGB that the 23-pin video out uses?  If so, where could I find a 23-pin amiga video to RGB BNC cable?

brian

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alexh wrote:
Possibly. My Iiama has both VGA and BNC connectors but only supports 31KHz video via either. For it to work the monitor must support a 15KHz horizontal scan rate.

The fact that it was connected to a video toaster would indicate it could support 15KHz.

If the monitor also has standard 15-pin VGA it would be cheaper to test using the Commodore 23-pin to 15-pin SYNC dongle. (or equivalent)

What model monitor is it?

I don't have the model number handy.  This is the closest thing I can find from a search:

http://sacramento.craigslist.org/pho/682355994.html

It looks like mine, but the side handles are different.  I have pics in my camera at home.  I can post them tonight.

I'm thinking it can go down to 15khz since it has rca inputs also.  I'm hoping to get a better image from the 23-pin port though.  I was able to hook up this monitor to the monochrome rca on the back of the 2000, then to a bnc adapter, then to the line in on the monitor.  I'm obviously after color though.

It doesn't have a 15-pin vga connector.  I'm thinking this monitor predates vga.  (The image output from the toaster looked great though.  So it's hood hardware.)  It does have a 9-pin video connector though iirc.

brian

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Is anyone still making the sync dongles or is that an ebay-only item?

I could probably make one if I had the pinout diagrams, although finding a db-23 connector might be a little tough.  Maybe I could butcher a cable from a 1084.  

brian

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 :-D

How sure are you that the cable from the 1084 will work with the 9-pin connector on the back of the monitor?

brian

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alexh wrote:
80%-90% (cant be sure without monitor model number)

The worse case scenario is you (get a mate to) resolder the 9-pin end...

ok, I'll give it a shot.  This would be great if i end up with essentially a 20" 1084   :-D

brian

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alexh wrote:
It will be easy to fix if the wiring is wrong

This is the wiring for the 1084 monitor (and thus the cable). Analog of course.

http://pinouts.ru/Video/C1084dd_pinout.shtml

Get the model of the monitor and we'll see if we can get the manual and the pinout of the connector.

ok, i'll get all that tonight.

There's three different 1084 cables on ebay at the moment.  I need to check on the gender of the 9-pin port first.  There's also one that looks like a DIN cable.  I think I have those ports as well.  The monitor is really flexible.

I think i may have the manual for the monitor also.

brian

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alexh wrote:
The Amiga 9-pin D cables all conform to the EGA (for analog) and CGA (for digital) wiring standards so perhaps look if it says CGA/EGA??

P.S. you wont want to use the digital mode... it's only 4-colour

I think it just says "digital".  In that case it sounds like the BNC hack is the way to go.  I'll have a look.

brian

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alexh wrote:
If it says digital then you are correct, the BNC hack is the way to go.

I am sure you can get a sync dongle cheap from somewhere.. $10 or so.

I'd rather go that route than hack a cable.  Can you suggest a source other than here or ebay?

brian

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Found it locally for $8.82 + $9.58 shipping.  Thanks.

http://www.hello-cables.com/legacy.html

brian

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Thanks again for your help.

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ncafferkey wrote:
How many BNC connectors are there on the monitor? If there aren't connectors for v-sync and h-sync, it needs sync-on-green input IIRC.

I dont remember exactly, but the back says something about sync on green.  So i think it will work both ways.  There's something like 10 or 20 bnc connectors on the back of the monitor.  That's in addition to a few RCAs, a db-9, and a lot of other connectors i've never seen before.

brian

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It's a JVC. The model number is VM-R190SU.

Here's one on ebay with pictures:

http://cgi.ebay.com/JVC-VM-R190SU-19-BROADCAST-COLOR-MONITOR-BNC-BETACAM_W0QQitemZ170201892835QQihZ007QQcategoryZ21517QQrdZ1QQssPageNameZWD1VQQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247


I have the manual also.  It's selectable between sync on green and separate sync.  There's a BNC connector on the back for sync signals.  My only concern is that it looks like there's one sync BNC whereas the cable is going to break out H and V into two separate cables.  I found a sort of BNC Y cable mixed in with everything.  Can I just combine them?

brian

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Thanks.  I'll try to hook everything up when the cables get here.

brian