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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: beast69 on December 07, 2005, 01:13:21 AM

Title: Faulty A600??
Post by: beast69 on December 07, 2005, 01:13:21 AM
Hi, I've bought an A600 on ebay and I'm really not sure if it's faulty or if I'm doing something wrong.
I'm pretty certain it's tuned in OK, when I turn it on I get a black screen, power light is on but no disk activity.
Can anyone help please?
Title: Re: Faulty A600??
Post by: TjLaZer on December 07, 2005, 03:14:22 AM
What do you have it connected to?  If you are certain it is connected properly, then try the following (in this order if you wish):

-Remove any RAM cards from belly
-Reseat the ROM chip
-Remove the HD (A faulty drive will lock up, happened to me)
-Remove the shielding to see any obvious damage

Anything short of that you may have a dead A600.  Contact Amiga Center of France if you wish to repair, or buy another from Europe (It's cheaper!)
Title: Re: Faulty A600??
Post by: beast69 on December 07, 2005, 03:24:08 AM
TjLaZer:
Thanks for the suggestions

-Remove any RAM cards from belly
Nope there's none there

-Reseat the ROM chip
I've pressed down on all the chips I can see

-Remove the HD (A faulty drive will lock up, happened to me)
Non-HD A600

-Remove the shielding to see any obvious damage
Couldn't see anything wrong.

One further observation, if I leave it on at the black screen it seems to start after an hour (or so)
Weird!

Title: Re: Faulty A600??
Post by: TjLaZer on December 07, 2005, 03:27:25 AM
OK one of mine did the same thing!  It was leaky caps that ruined some traces, if I left it on it eventually came up.  Like it needed to warm up.

Jean at Amiga Center repaired it for me for around $50 with a fast turnaround! About 2 weeks from Seattle to Paris? ;)
Title: Re: Faulty A600??
Post by: TheWizard on December 07, 2005, 03:35:18 AM
Black screens on anything with an OCS is not good. You should get some colours presenting themselves onscreen before any WB symbol. Please refer to http://www.amigahistory.co.uk/selftest.html

The Wizard
Title: Re: Faulty A600??
Post by: Argus on December 08, 2005, 10:07:26 AM
Is the screen completely black or just dark grey?  In addition to the caps TjLazer mentioned near the power supply input, you could have a bad cia chip (in which case you'd get a dark grey screen with no floppy access).