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1. Embed this notice
   trebroNdotnet (trebrondotnet@mastodon.social)'s status on Saturday, 07-Dec-2024 04:10:35 JST trebroNdotnet

   ...after cleaning and careful drying we can begin to remove all affected parts from the board.

   #amiga
   #a3000
   #vintagecomputing
   #retrocomputing
   #batterydamage
   #restauration
   #electronics

   • Embed this notice
     Bernie (codewiz@mstdn.io)'s status on Saturday, 07-Dec-2024 04:10:31 JST Bernie

     in reply to

     @trebroNdotnet Thank you for sharing! How did you desolder the Paula and Denise slots? I'm about to do it too.

     Do you have PCB schematics and Gerber files?

   • Embed this notice
     trebroNdotnet (trebrondotnet@mastodon.social)'s status on Saturday, 07-Dec-2024 04:10:34 JST trebroNdotnet

     in reply to

     • Bernie

     I will update my restauration as I go... @codewiz is also restoring an A3000. Worth watching as well:

     https://mstdn.io/@codewiz/113561527808236797

   • Embed this notice
     Bernie (codewiz@mstdn.io)'s status on Sunday, 08-Dec-2024 05:54:30 JST Bernie

     in reply to

     @trebroNdotnet wow 😂

     I didn't keep everything, but this is my graveyard so far:

   • Embed this notice
     trebroNdotnet (trebrondotnet@mastodon.social)'s status on Sunday, 08-Dec-2024 05:54:31 JST trebroNdotnet

     in reply to

     • Bernie

     @codewiz Desoldering: add fresh solder, snip the sockets to smaller peaces, "lots" of heat. Desoldering gun did nothing here... Main goal is to keep the pcb alive!

     PCB-orientation: https://retrobox.it/files/pcb/Amiga_3000.html

     Schematics: http://amiga.serveftp.net/Schematics/A3000_schematics/A3000_R9_schematic.pdf

     Gerber: http://www.reamiga.info/webfiles/R3000/A3000Rev94.zip

   • Embed this notice
     trebroNdotnet (trebrondotnet@mastodon.social)'s status on Monday, 09-Dec-2024 01:41:12 JST trebroNdotnet

     in reply to

     • Bernie

     @codewiz ...as long as we plant a new chip meadow everything will be fine 😃

   • Embed this notice
     Bernie (codewiz@mstdn.io)'s status on Monday, 09-Dec-2024 01:44:45 JST Bernie

     in reply to

     @trebroNdotnet I also pulled out most of the chips to root-cause the instability.

     It's amazing that DiagROM still works with such a lobotomized board. You only need Gary, one of the CIAs and 1MB of Chip RAM.

     After this, I strongly suspect the ZIP RAM modules made things worse, but I'm not 100% sure.

   • Embed this notice
     Bernie (codewiz@mstdn.io)'s status on Monday, 09-Dec-2024 01:55:40 JST Bernie

     in reply to

     @trebroNdotnet
     The Z3660 is a great debug tool, but also introduces weirdness: some address lines are now driven at 3.3V, and soft reset no longer works (/CPURST held down forever).

     Without the Z3660, the board red screens and reboots every few seconds. I see stuff on the address and data bus, and I don't have a suitable programmer to dump the ROMs.

     I bought a Kickstart 3.2 ROM set from Irland, but it will take a while to arrive.