Amiga.org
Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: tom16mm on August 08, 2010, 07:33:10 AM
-
Hello all.
Does anyone know about the status of Indivision AGA production for the A1200? I am in need of one, and I'm just wondering if they will ever be produced again. If not, are there any sources for new old stock/used devices, or anyone who might be willing to sell theirs?
Also, do these devices change the main video output, or do they add another connector for VGA?
Thanks,
Tom
-
They add a VGA connector, which is usually routed out of the spare expansion slot underneath the floppy drive.
Rumours are there should be a new batch produced later this year. Used ones pop up for sale every so often too.
-
Sounds good.
On a related note, I read that some of the A1200 revisions have a Lisa chip that is too thin for the board to properly seat over it. Is this true, and which revisions does it apply to? I have a revision 2B board.
-
The best Lisa chip to have for use with the Indivision is the Commodore Lisa. The HP Lisa is the one that's incompatible, and I think there's a third one which isn't too good either. There are hacks to get it to work though, and I think later revisions of the Indivision are compatible or will be compatible with all the Lisa chips.
-
I to would like to get me one.
-
The best Lisa chip to have for use with the Indivision is the Commodore Lisa. The HP Lisa is the one that's incompatible, and I think there's a third one which isn't too good either. There are hacks to get it to work though, and I think later revisions of the Indivision are compatible or will be compatible with all the Lisa chips.
I have a Escom A1200, and a HP Lisa chip.
Indivision used to "pop out" every once in a while but fixin it was very simple, I just bended the pin's a little from the Indivision. Never had even a one problem after that (fixed it about 1 year ago).
-
The first batch of the Indivision AGA 1200 could slip of certain types of Lisa, mainly the HP ones. Slightly sanding down the connector of the Indivision would solve this. About 0.5 mm should be enough.
Later revisions were, if I am not mistaken, either sanded down already or used as slightly lower connector.
My Indivision (early revision) also would not stay on, which was easily solved with the sanding down procedure. It is now firmly attached to the Lisa chip in my A1200.
-
There is also the resistor hack for improved picture quality.
-
One just sold on ebay for about TWICE the original price.
-
As I suspected these will be worth 500 euros in 10 years :)
Better get a second one during fall this year ;)
Anyway, what is the resistor hack?
-
hi if any one is interested would consider selling my indivision for 1200 also ext scan doubler and int scan doubler both for a1200 offers welcome
-
Indivision will be back in our webstore in Q3 2010.
-
will it be the same revision as last time, or is there anything to the rumours that it´s a new revision with new features, not only mechanically but also feature wise?
-
There is also the resistor hack for improved picture quality.
Is this the hack that prevents the "flicker" at the top of the screen in hi-res modes that occurs for 5 - 10 minutes after booting (or until the machine is warm?)
Link?
-
Hi,
Anybody tried that 15khz rgb to VGA converter that they have listed on ebay for $92, would really like to know how it works before I spend cash on one.
Thanks
smerf
-
Hi,
Anybody tried that 15khz rgb to VGA converter that they have listed on ebay for $92, would really like to know how it works before I spend cash on one.
Thanks
smerf
If its this one
http://www.ambery.com/rgbcgatovgac.html
it works good. Picture is not perfect, workbench has a tiny bit of ghosting, and black backgrounds have vertical lines if you look closely, but its perfectly usable, games look great and its cheap.
-
I hope they fix the problem with soft booting, it is really annoying when the screen just stays black :madashell:...
-
Is this the hack that prevents the "flicker" at the top of the screen in hi-res modes that occurs for 5 - 10 minutes after booting (or until the machine is warm?)
Link?
TC, TheCorifot at AmiBay can tell you more about it.
On the A1200 he says:
You need to short out E127R which is on the underside of the A1200 Mobo in order to clean up the CLK signal.
Here (http://www.amibay.com/showpost.php?p=52661&postcount=3)
And then the A4000 version hack:
It's a 1K resistor between +5V and the CCK line which raises the peak to peak amplitude of the clock signal to over 4 Volts, Without it the signal swing is 3.4V
Here (http://www.amibay.com/showpost.php?p=20533&postcount=18)
-
One just sold on ebay for about TWICE the original price.
I'm so tempted to sell mine, purely for the profit :razz:
-
Hi,
Anybody tried that 15khz rgb to VGA converter that they have listed on ebay for $92, would really like to know how it works before I spend cash on one.
Thanks
smerf
I have this one http://www.ambery.com/rgbcgatovgac.html and it works great. No ghosting or artifacts and does PAL to NTSC conversion. The max. input resolution is PAL: High Res 640x256 or PAL: High Res Laced 640x512.
I also have this for HDMI connectivity, but it does not do PAL to NTSC conversion. It also works great, beautiful picture on 60" TV http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWNX:IT (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220627406853&ssPageName=STRK:MEWNX:IT)
It does require a SCART cable that can also be purchased on eBay.
-
Comparing a 15kHz converter with the indivison aga is stupid.
Or can you do that ...
http://amigasys.ultimateamiga.co.uk/amigasys5-amiga07.jpg
-
Comparing a 15kHz converter with the indivison aga is stupid.
Or can you do that ...
http://amigasys.ultimateamiga.co.uk/amigasys5-amiga07.jpg
Maybe and maybe not. For workbench work you don't need any of the devices and just use one of the Productivity modes. For games it doesn't matter as they are low res anyway. For those who need PAL to NTSC conversion for games the 15kHz converter is actually pretty convenient, especially if you have additional 15kHz computers (ZX Spectrum, Atari, C64, etc). I'm not taking anything away from Indivision, but both products have its purpose.
-
For those of you wondering what the new Indivision will be like, this is what I heard back from Individual a day or two ago:
"A new version of the device is planned for Xmas business of this year. Even the old ones are compatible with the Rev.2B motherboard and HP Lisa chips. The only known unresolved issue we have is with Rev.1A boards. We just recently resolved an issue with Rev.1B boards and we have one of those Rev.1A boards on it's way to us, so we can make the new unit compatible with the whole range."
Also, I have that 15KHz adaptor from ebay you're talking about, and it does work ok, except for the vertical lines, and it has this big issue where it often puts the fields in the wrong order (interlaced modes only), and changing the screen mode back and forth fixes it half the time. It's a big pain.
-
Oh, that 15KHz adaptor also has some jagged artifacts in NTSC with vertical lines.
If anyone has any ideas on how to fix the adaptor issues, that would be wonderful. At least until I get an Indivision. I have the 15KHz adaptor connected directly to RGB, and the H and V sync pins.
-
Oh, that 15KHz adaptor also has some jagged artifacts in NTSC with vertical lines.
If anyone has any ideas on how to fix the adaptor issues, that would be wonderful. At least until I get an Indivision. I have the 15KHz adaptor connected directly to RGB, and the H and V sync pins.
I think there might be different versions/manufacturers of this adapter or maybe it's the same one just sold under many different brands. I have mine connected via this connector http://amigakit.leamancomputing.com/catalog/product_info.php?cPath=42&products_id=183 and the picture is crystal clear, no artifacts.
-
will it be the same revision as last time, or is there anything to the rumours that it´s a new revision with new features, not only mechanically but also feature wise?
I'm wishing to buy one at Versalia. Now they are out for holidays for some days, but this is what they told me:
Question:
"On Thursday 15 July 2010,...()... When do you think they will be for sale again? Do you have notices of Individual Computers about it?"
Answer:
"Hello,
There is no confirmed delivery date as of yet, we still hope for a release in
late summer.
But we've been told it's worth waiting for. "
I will buy to them, as I was asking Amikit to keep me informed the same week or one before they sold some of them, and they didn't tell me a word or a message... BTW the ones they sold were of course NOS.