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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: parapete on November 03, 2005, 12:51:34 AM

Title: Acorn monitor on a1200
Post by: parapete on November 03, 2005, 12:51:34 AM

Hi,

Do any of you know if an Acorn AKF-17 or AKF-30 monitor is compatible with an amiga a1200? If they are, then will all screen modes be visible? Also, the ones I'm looking at only come with power leads, so if they do work, what additional leads will I need?

Thanks,
Peter

Title: Re: Acorn monitor on a1200
Post by: InTheSand on November 03, 2005, 01:08:04 AM

If the monitor is designed to be used with all screenmodes of a basic Archimedes (e.g. the A320 and similar vintage), chances are that it will work with the majority of the Amiga's modes.

Acorn used to re-brand the same Microvitec 1483 14" monitors that Commodore used to re-brand. I have both an Acorn-branded and a "native" Microvitec 1483 and both work fine with the Amiga. All you require is a 15-pin VGA to 23-pin Amiga monitor socket converter.

However, if your Acorn monitors are designed for other Acorn machines, or more recent Archimedes models, you might be better off getting some better advice!

 - Ali

Title: Re: Acorn monitor on a1200
Post by: bludger on November 03, 2005, 02:11:41 AM

I have an AKF-17 that worked just fine with an A500.

It needs a 1084 (9pin) cable with a 9 pin female to female gender changer.

I can't try it on the 1200 - I put a bit too much pressure on the cable connection, and broke the PCB!

Title: Re: Acorn monitor on a1200
Post by: parapete on November 03, 2005, 03:35:00 PM

Thanks for the information. The AFK-17 is sold now unfortunately but I still might take a gamble and buy the AKF-30. I read that it is from 1992, so it should hopefully be of some use to me...

Thanks

Title: Re: Acorn monitor on a1200
Post by: parapete on November 15, 2005, 06:42:51 PM

Right, sorry to dig up an old thread...

I recieved the monitor today and it does display all screen modes, however, the colors are broken; I only see different shades of pastel blue and pink. Now, I have no way of telling if the monitor itself is faulty as I have nothing else to test it on. Does this problem sound familiar to anyone? Is there something inside the monitor that I could adjust that might remedy this?

Thanks

Title: Re: Acorn monitor on a1200
Post by: leofoe on November 15, 2005, 06:55:33 PM

I have seen this with a SCART-connector to my Philips 8833. One of the color-leads doesn't make contact, because of the weak pins on this kind of connector.
So in your case it might be a loose wire in one of the connectors. It probably is the wire for the green color, as you do get blueish and reddish colors.

Title: Re: Acorn monitor on a1200
Post by: parapete on November 16, 2005, 06:35:35 PM

Thanks for the reply. I've opened up the cable and it does indeed look badly made (last time I buy a cable for £15 from some random on ebay). Looking at pinouts I've found it appears to be wired wrong. Can someone please confirm to me or point me in the direction of something telling me which pins should be connected to which other pins on a 9 pin sub-d to 23 pin amigo lead?

Thanks

Title: Re: Acorn monitor on a1200
Post by: r6stu on November 19, 2005, 02:38:32 PM

I have an AKF-18 made in 1993 what about this one?

Title: Re: Acorn monitor on a1200
Post by: parapete on November 21, 2005, 05:51:26 PM

Right, I've just tried the monitor with a cable that I know works and I don't even get a stable image now so either the monitor isn't compatible (likely) or the video output on my a1200 is broken (unlikely, but not impossible). So my advice to anyone thinking about buying an Acorn monitor for their Amiga on the off chance that it might work - DON'T. With the money I've spent on the monitor and cables now I could have bought a decent monitor from ebay (if I'd been patient). So, who wants to sell me a scandoubler? :)