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Offline MelbourneBen

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Re: My 500+ Project
« Reply #14 on: June 16, 2012, 09:17:51 AM »
Did you get this from the UK? If so, how much was the postage?

Shame about the damage, Most of the A500+ ECS compenents should fit in a standard A500 mobo that you could easily get from ebay.com.au, the only chip you may have problems fitting without adjustments is the fatter agnus. Good luck, would like to hear how you go with this.
Amiga 500 user
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #15 on: June 16, 2012, 09:59:31 AM »
Shipping was 50£ but I don't regret it. :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline gertsy

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Re: My 500+ Project
« Reply #16 on: June 16, 2012, 05:12:55 PM »
Quote from: djos;696563
Shipping was 50£ but I don't regret it. :)


Ohh Man that's a pain. Bad luck. That damage looks pretty comprehensive…
Understand the urge to resurrect it.  A500+ is a rare beastie. It's possible some of the tracks and components are in the same state as the Gary socket.  But I hope not/
Hate to see such Amiga enthusiasm hit a wall.

Tell you what, if can’t get it working as a consolation I can send you a working Plain A500 with v5 Motherboard, For Free, postage only.

Don't give up on it.
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #17 on: June 16, 2012, 11:11:59 PM »
Thanks mate, i really appreciate the offer :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline Azryl

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Re: My 500+ Project
« Reply #18 on: June 17, 2012, 12:42:29 AM »
The A500+ are Rev8a motherboards if I remember correctly... different Agnus socket + pin arrangements compared to a normal A500.

I would just replace every green socket or surface soldered chip as possible. Resisters will be available from electronics places, IC's from a standard A500 should swap. Solder in your new sockets and jumper any corroded tracks if able. See if you can bring it back from the dead :)

Amiga's are much nicer with 2meg chip ram!

Az
Completely useless? I can always be used as a bad example  :lol:
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #19 on: June 17, 2012, 01:13:41 AM »
Thanks Az I'll be working pretty hard to fix my 500+ :cool:
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #20 on: June 17, 2012, 02:59:59 AM »
Just got back from Jaycar with 2x 24 pin ic sockets and a new can of isoprophyl, gonna have to wait till later tonight tho as off to see my folks for the arvo.
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline Azryl

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Re: My 500+ Project
« Reply #21 on: June 17, 2012, 03:45:28 AM »
If you lift any of the green protective paint off the copper tracks with your alcohol, go buy some cheap girly nail polish, a bright colour!

This can be painted over any exposed areas of the motherboard/copper you need to repair, works well.

Also, if you have small sections of track that are suspect or badly corroded, buy a rear window demister repair kit from a local car spare parts/autobarn/repco. The silver conductive paint can be used to redo the damaged tracks for short distances. Wait until dry then cover with nail polish :)

Az
Completely useless? I can always be used as a bad example  :lol:
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #22 on: June 17, 2012, 03:58:43 AM »
Good tips, thanks as the last proper techie job I had was in the late 90's so I've forgotten a lot of these tricks. :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #23 on: June 17, 2012, 11:28:28 PM »
Well after a hard nights careful de-soldering (last night) I was able to remove half the Gary Socket and only have the other half to go (old solder is a pain to work with).

I was also able to clean the motherboard with Isoprophyl and a toothbrush/rag and it came up really well, so well in fact that I couldn't find a single damaged trace or area missing lacquer (mainly just discoloration) so now Im really optimistic that I'll be able to return my Miggy 500+ to full health! :cool:
« Last Edit: June 17, 2012, 11:37:59 PM by djos »
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline MelbourneBen

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Re: My 500+ Project
« Reply #24 on: June 18, 2012, 01:48:24 AM »
Quote from: djos;696743
Well after a hard nights careful de-soldering (last night) I was able to remove half the Gary Socket and only have the other half to go (old solder is a pain to work with).

I was also able to clean the motherboard with Isoprophyl and a toothbrush/rag and it came up really well, so well in fact that I couldn't find a single damaged trace or area missing lacquer (mainly just discoloration) so now Im really optimistic that I'll be able to return my Miggy 500+ to full health! :cool:


Good to hear!
Amiga 500 user
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #25 on: June 18, 2012, 01:52:56 AM »
Quote from: MelbourneBen;696749
Good to hear!


Indeed, just need to finish replacing the socket and plug her in when my new PSU shows up. *fingers Crossed* :)
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline AmmoJammo

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Re: My 500+ Project
« Reply #26 on: June 18, 2012, 01:54:24 AM »
pics? :P
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #27 on: June 18, 2012, 02:07:56 AM »
Quote from: AmmoJammo;696751
pics? :P


Will try and take some tonight, wife was giving me the hurry up. :D
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem
 

Offline Azryl

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Re: My 500+ Project
« Reply #28 on: June 18, 2012, 03:55:34 AM »
Awesome! Good to hear about the tracks after the clean up...  replacing sockets is a pain, make sure you do not make any solder bridges on the legs. Check with a magnifying glass if you have one.

Hope Gary works for you.

Az
Completely useless? I can always be used as a bad example  :lol:
 

Offline djosTopic starter

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Re: My 500+ Project
« Reply #29 from previous page: June 18, 2012, 04:03:06 AM »
Quote from: Azryl;696761
Awesome! Good to hear about the tracks after the clean up...  replacing sockets is a pain, make sure you do not make any solder bridges on the legs. Check with a magnifying glass if you have one.

Hope Gary works for you.

Az


Thanks, yeah removing a Socket is really hard, I wish I had a nice Weller Soldering/de-soldering station like back in my techo days as solder suckers are close to useless and de-soldering braid can be tricky to use on such small holes.

I do all this sort of work with a mag-glass mounted on my little small-pcb holding stand thingo. :D
[SIGPIC][/SIGPIC] Amiga 1200 w/ ACA1220 16Mhz 128MB w/ RTC, 4GB CF-HDD, Roland MT-32 MIDI Synthesiser
Amiga 500 w/ KS2.05, 1Mb Chip-Ram, CF-IDE w/4MB Fast-Ram, FDD Boot Selector, HxC RevC Floppy emulator
Commodore 64 w/ 1541 Ultimate-II inc Tape Adapter, JiffyDOS, 1541 Disk Drive, 1531 Datasette, Flyer Net Modem