Anyone able to identify this board?

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Dragon6
Posts: 4
Joined: Fri May 09, 2014 9:39 am

Anyone able to identify this board?

Post by Dragon6 »

Just picked up a Dragon 32 on Ebay as it came with a Dragondata disk drive :)

As I have a Dragon 64 already which I've had since childhood, I was planning to refurb the 32 and sell it on to a new owner.

However on opening the lid I spotted what looks like a modification connected to the motherboard.

I'm not overly familiar with the layout of the 32 but having looked online for images to do a comparison I didn't see any that had this board plugged in.

Anyone able to identify what it is, is it a factory standard component on some builds or is is some kind of upgrade?
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The unidentified board
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KenH
Posts: 177
Joined: Fri Oct 12, 2012 9:50 am

Re: Anyone able to identify this board?

Post by KenH »

see this thread:
viewtopic.php?f=5&t=151
Dragon6
Posts: 4
Joined: Fri May 09, 2014 9:39 am

Re: Anyone able to identify this board?

Post by Dragon6 »

Thanks for the link, interesting.

I'll have to compare the image quality from the monitor socket on this 32 with my 64 to see if there is any noticeable difference...
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tormod
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Re: Anyone able to identify this board?

Post by tormod »

I would also be curious to know what quality improvement this board gives, and if it would be worthwhile to replicate it. Did anyone try an A/B comparison? The other thread doesn't really say anything about the improvement.
Dragon6
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Joined: Fri May 09, 2014 9:39 am

Re: Anyone able to identify this board?

Post by Dragon6 »

Did anyone try an A/B comparison?
I'm planning to at the weekend, unless I get an hour to spare before then.

Will take a few shots and post them here, and let you decide which is which!
Alastair
Posts: 629
Joined: Fri Jul 18, 2008 11:33 pm

Re: Anyone able to identify this board?

Post by Alastair »

Dragon6 wrote:I'll have to compare the image quality from the monitor socket on this 32 with my 64 to see if there is any noticeable difference...
I don't have a 64, and I haven't seen one in the flesh (plastic?) for nigh-on thirty years, but isn't the 64 supposed to have a better quality display than the 32?
KenH
Posts: 177
Joined: Fri Oct 12, 2012 9:50 am

Re: Anyone able to identify this board?

Post by KenH »

Apparently, the Dragon 64 has this logic already built-in.
prime wrote:It's just struck me whilst looking at the Dragon 64 circuit diagram, that the board was obviously an improvement as it's included in the Dragon 64 circuitry (IC14 & IC13A).

Just looking to maybe try and convert my Atom RGB board to work on the Dragon & CoCo, would not be a problem if the 6847 was socketed :(

Cheers.

Phill.
viewtopic.php?f=5&t=4510&p=9844&hilit=PN48200#p9865
Dragon6
Posts: 4
Joined: Fri May 09, 2014 9:39 am

Re: Anyone able to identify this board?

Post by Dragon6 »

Apparently, the Dragon 64 has this logic already built-in.
I hadn't seen this when I did a few comparisons this morning between the 32 and 64, and I did notice a difference, but whether that could just be down to other factors such as component age etc, that could always be a possibility.

I know someone that has a 32, if I can get hold of that and confirm it doesn't have one of these enchanting boards fitted, that would then be a fair comparison.
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