A1200 Problem

zeropolis79 · Posted: Sat Mar 24, 2012 4:44 pm Post subject: A1200 Problem

I've been playing on my A1200 over the last few days but when I turned it on today, all I get is a black screen and the power light on..

I've got Kickstart 3.1 and a IDE CF reader with WHDLoad on...

Any ideas?

Thanks.[/u]
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Patrick Furlong

zeropolis79 · Posted: Sun Mar 25, 2012 7:13 pm Post subject:

Please help!

I want to play on my A1200!
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Patrick Furlong

motrucker · Posted: Mon Mar 26, 2012 12:35 am Post subject:

Have you tried to boot from a floppy? You might want to check the output from the PSU with a multimeter too.
Give this s try, and post back.

zeropolis79 · Posted: Mon Mar 26, 2012 11:16 am Post subject:

a) Floppy - I can't boot from a floppy drive

b) Power supply - it's all working. I borrowed a multimeter a few days ago.

This morning, the hard drive light came on for a few seconds. On occasion, I will get a yellow screen.
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Patrick Furlong

mikey2002kent · Posted: Mon Mar 26, 2012 2:10 pm Post subject:

When the Amiga boots, if it encounters a hardware fault the system will display a solid single coloured screen, or a series of these screens if more than one error is detected.

The following colours are valid for all versions of AmigaDOS since Kickstart 1.3. However, there were several more colours in 1.3 compared to anything included after Kickstart 2.0 was released. However all of the colours listed below are the same for all versions of Amiga kickstart.

Red - An error in the Kickstart rom as detected.
Green - An error in the Chip Ram was detected.
Blue - An error in the custom chip set was detected.
Yellow - The CPU encountered an error before the system's error- trapping code (the code the calls up the Guru) was in place.
Black - No CPU detected.
Grey - CPU Passed the test.
White - CPU failure.

I don't know how it can be fixed but sure someone on here will have more details
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Owned:
Amiga 1200 2mb + 8mb fast, 4gb HD, WHD Load
Playstation 2, Nintendo DS, Nintendo Wii

zeropolis79 · Posted: Mon Mar 26, 2012 2:34 pm Post subject:

Thanks for those details..

I hope it can be sorted as I can't afford to buy another one..
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Patrick Furlong

Night_Creature · Groupie Joined: 21 Dec 2004 Posts: 176 Location: Sweden

Open the A1200 and clean the motherboard , and check the cables.

try another Power Supply.
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Cj's Elephant Antics , finished the game 2013-05-13

zeropolis79 · Posted: Mon Mar 26, 2012 3:05 pm Post subject:

What's the best way to clean the motherboard?

Power supply - I can't as I only have one and I don't know anyone in the area who has an Amiga anymore..

I've just tried it and it looks like it boots from the HDD (in reality, CF card). But it still gives a yellow screen plus black. I'll give cleaning it a try. I've tried unplugging the CF adaptor and floppy drive and a combination of either.
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Patrick Furlong

motrucker · Posted: Mon Mar 26, 2012 7:33 pm Post subject:

Do you have an accelerator? If yes, try booting without it in place.
You might end up removing any and all upgrades, back to a "stock" machine and see if it will boot then.
Good luck.

zeropolis79 · Posted: Mon Mar 26, 2012 7:38 pm Post subject:

I'm not lucky enough to have an accelerator..

Looks like I'm going to be Amiga-less for a long time..
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Patrick Furlong

zeropolis79 · Posted: Thu Mar 29, 2012 5:21 pm Post subject:

I tried cleaning it up, unplugging the CF card and reader and/or the floppy drive, but no go...
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Patrick Furlong

Night_Creature · Groupie Joined: 21 Dec 2004 Posts: 176 Location: Sweden

Buy a new A1200 from Amikit.

http://amigakit.leamancomputing.com/catalog/product_info.php?cPath=40_85&products_id=305
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Cj's Elephant Antics , finished the game 2013-05-13

zeropolis79 · Posted: Sun Apr 01, 2012 7:12 pm Post subject:

I wish I could but I can't afford £125..
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Patrick Furlong

Night_Creature · Groupie Joined: 21 Dec 2004 Posts: 176 Location: Sweden

And I think it is more expensive to Repair the A1200.

what do you use with your A1200 Tv or Monitor ?? try to get Screen in different connects.

http://amigakit.leamancomputing.com/catalog/index.php?cPath=21_72
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Cj's Elephant Antics , finished the game 2013-05-13

zeropolis79 · Posted: Mon Apr 02, 2012 11:14 am Post subject:

I use a TV with SCART connection..
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Patrick Furlong