21 March 2009, 18:57 | #1 |
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A 500+ won't boot
Hi,
I'm new here and the first thing i have in mind is a question. Last week i recoverd my 500+ and I was very happy about it. After connecting it to my tv I got hit, as it won't boot. I just got a black sceen and the Power and Drive LEDs are on all the the time. If I put a disk in the floppy drive it runs all the time too. I opend the 500+ and it was covered in this green dust (Picture). I got the 500+ years back and played some games with it, and thats all. I don't know anything about the Harware or what could be broken. Did someone can help me here? BR HRMeinert |
21 March 2009, 19:08 | #2 |
Zone Friend
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I remember that A500+ have battery which sometimes can leak.
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21 March 2009, 19:16 | #3 |
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Yup, by the looks of things that battery has leaked. Remove it and clean up the motherboard best you can.
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21 March 2009, 19:35 | #4 |
Global Moderator
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Hi HRMeinert, and welcome to EAB.
Yes, the battery has leaked and that green stuff isn't dust, it's corrosion. Get that battery out of there as soon as you can and clean the deposit from the motherboard with a stiff brush made by cutting short the bristles on a 12mm paint brush and either isopropyl alcohol or methylated spirit. The battery looks like a standard 3.6V lithium battery which was commonly fitted to many older motherboards before button cells became popular, and they should still be available to buy. Don't forget to make a note of the polarity of the battery before you remove it. prowler |
21 March 2009, 20:11 | #5 |
HOL/FTP busy bee
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Hi HRMeinert and welcome to EAB
Good to see you already got some answers. Hope you think about staying a bit longer after you got your A500+ sorted. Have a nice stay |
22 March 2009, 10:05 | #6 |
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Hi all,
thanx for the kind and very quick help. Just to round it up. I have to: 1.) desoldering the battery 2.) buy a new battery 3.) remove the corrosion 4.) resoldering the new battery thats it? @TheCyberDruid Thnx for warm welcome and the hint for this very nice massageboard! |
22 March 2009, 10:17 | #7 |
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22 March 2009, 10:50 | #8 |
WinUAE developer
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There is no need to buy new battery (at least not until it boots properly), Amiga will work without it.
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22 March 2009, 11:45 | #9 |
Turpentine
Join Date: Oct 2007
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Don't forget to clean the green corrosion off. If it still does not work post back to us.
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22 March 2009, 11:53 | #10 |
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22 March 2009, 12:08 | #11 |
Turpentine
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22 March 2009, 12:20 | #12 |
Puttymoon inhabitant
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The corrosion looks very seriously, I am afraid it could damage the board so it could be very difficult to repair. See where it spreaded - up to the resistors near CIA and down to the expansion port. Also capacitors could be after their life time. Desolder (or simply cut) the battery immediatelly, clean the board and impacted circuit elements with brush and alcohol, visually check if those wire-ways on the board remained uninterupted and try to turn the board on. If it won't help, I am afraid only the skilled person can try do rescue this mobo.
BTW -the battery is only needed for realtime clock, so don't put it there back, if the mobo works. Last edited by Predseda; 22 March 2009 at 12:45. |
22 March 2009, 13:03 | #13 |
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Thnx for the help. I'll imidiatly will desolder the battery and clean the board. I'll show pictures later today.
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22 March 2009, 13:23 | #14 |
Puttymoon inhabitant
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It will be probably needed the Gary and RAM socket, if the board won't work.
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22 March 2009, 13:30 | #15 | |
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Quote:
Take your time with this, and take great care not to cause any further damage. You have everything to gain, but nothing to lose, because it's not working at the moment anyway. I wish you good luck, and your pictures will surely be most welcome here. prowler |
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22 March 2009, 13:44 | #16 |
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He's dead Jim
Sadly I don't took my time. I did it with a bit of hurry and hurt.. garry i think. I tryed to remove it from the socket and pulled some of the socketconnertors out with garry. It's hard to see in the picture but i got 4 in my hands Unfortunatly i removed the battery and there's some damage on the board. Some needs some a500+ parts? |
22 March 2009, 13:53 | #17 |
Puttymoon inhabitant
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I dont think it is so serious to bin the board. Under the battery there is nothing important imho. And Gary adapter will nedd to be replaced (I'd expect the same with RAM socket)
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22 March 2009, 13:55 | #18 |
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That's a shame.
It looks as though you made a good job of cleaning it up too. |
22 March 2009, 14:14 | #19 |
HOL/FTP busy bee
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Sad to hear that HRMeinert However I'm quite sure that you can manage to get it working again with some help
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22 March 2009, 15:11 | #20 |
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Hm, you guys realy think it's repairable?
So I should desolder the Gary-Adapter and change it to a new one? Which part is the ram-adapter? Thnx for you support! |
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