Mystery Amiga 2000's (Pt3) - Motherboard Refurbishment
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- Опубликовано: 27 сен 2024
- To create my 'World of Amiga' display in the Museum of Computing, I start by restoring 2 Amiga 2000's I found in the archives. Join me in part 3 as I refurbish the first of the 2 motherboards.
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● Music in order of being played:
Electro Dollars (by Rondo Brothers)
Capacitors Used (ordered from RS Components)
All rated 105ºC
Qty:5 - Rubycon 220μF Electrolytic Capacitor 10V dc, Through Hole - 10YXF220M6.3X11 - Stock no.:191-8132
Qty:13 - Rubycon 47μF Electrolytic Capacitor 16V dc, Through Hole - 16YXF47MEFC5X11 - Stock no.:703-8103
Qty:3 - Nichicon 4.7μF Electrolytic Capacitor 35V dc, Through Hole - UPW1V4R7MDD - Stock no.:715-2701
Qty:4 - Rubycon 470μF Electrolytic Capacitor 16V dc, Through Hole - 16YXF470M10X12.5 - Stock no.:224-4195
Qty:7 - Nichicon 22μF Electrolytic Capacitor 35V dc, Through Hole - UPW1V220MDD - Stock no.:715-2729
This level of attention to detail is what I aspire to whenever I clean a computer.
Every time I work on a board I try to improve a little. I try to learn from others more experienced as much as possible, and it's great when those people offer constructive suggestions about what to do or not do.
Awesome video, great to see another old computer coming back to life.
Thank you. I know you appreciate the time and care involved, from watching your work. 🙂
Thankfull for this video of the Amiga 2000,
i gonna follow your video to clean my 2 Amiga 2000's,
so that they also have many years to come :)
Thank you for watching, I'm glad you found it useful. I recommend you take your time and only do one at a time. It helps to not mix up parts and you always learn techniques on the first you can improve on for the 2nd. Obviously I cannot take responsibility for any damage from replicating what I did here and I recommend watching similar videos from others. Good luck, I hope it all goes well!
who can dedicate a book to his first wife?? she divorced him, took all the money??
I had a couple of accidents with the plcc extraction tool when trying to remove Agnus. Chipping off corners and scratching the chip. Even bending pins badly. Very annoying. But not managed to destroy one yet, other than cosmetic as a result from this. And yeah, most Amiga motherboards have those two holes in the PCB so one can remove it more safely. Amiga 500 Plus motherboards do not have these holes sadly.
Yes, it's frustrating when that happens that for sure. On the A500 plus though, at least the Varta lends a helping hand by corroding all the pins so they just fall away! 😉
I have to comment mid-video. Please get the DIP-chip puller. Using flat screwdriver for removing socketed chips can easily damage the traces beneath the chip. Sometimes it will disrupt the precisely calculated high-freq signal propagation even when trace is not fully cut, but slightly thinned/narrowed.
Thank you for watching. I do have the simple U-shaped DIP puller but I find it too easy to damage the larger ICs with it when they have been in a board for so long and do not want to move. I am being very gentle and only twisting between the plastic socket and the IC. That's why I never use a levering actions as it's too easy to damage the board that way.
Can you recommend a better chip puller for large ICs?
@@TheDigitalOrphanage I'm using the usual U-shaped DIP-chip puller from eBay. It works for small chips like RAM. I had no need in larger one yet, sorry. Maybe Mark from Mark Fixes Stuff channel could help?
Meanwhile, I'd use a plastic flat screwdriver for such purposes.
I have some nylon plastic spudgers so I'm not sure why I didn't use one of them, force of habit I guess. I'll try one next time. The problem I find with the U-shaped pullers is when you stretch them too wide for large ICs, there's not enough under the IC, and what there is is at an angle making it easy to slip.
You've prompted me to do some searching and this looks interesting:
www.silicon-ark.co.uk/ic-puller-removal-tool
@@TheDigitalOrphanage I'm glad you found the tool which might help in your next restorations. Our digital orphans deserve the very best care ;)
I'm not feeling this extravagant though:
www.distrelec.biz/en/ic-extraction-tool-28-weller-pul-ic-24-28/p/18044116
Did you upgrade your camera equipment? :) Picture is much more clear now.
I have indeed! I now use a Sony 4K Handycam instead of my Canon 7D from 2010, and the overhead bench shots are from a 4K action cam I bought and reviewed last year. When starting a channel, they say the best camera is the one you have so I made do with 1080p from my 7D for a long while. 4K kills my PC though (pretty vintage itself) so I have to edit with low-res proxy files and then switch to 4K for the final render. New editing PC next I guess...
@@TheDigitalOrphanage I absolutely agree about the starting channel saying. And now the production quality made a huge step forward as well 👍
Thank you it's, nice that's it's appreciated. I not only learn from experience, but also from watching others work, TV, and from helpful comments from viewers.
I've not seen the hot flux copper braid technique before, what exactly does it do?
The hot flux helps dissolve the oxides and impurities. The braid acts as a gentle scrubber and collects the larger particles and old solder.
NICE
Thank you for taking the time to share! It gives me an opportunity to do the same, if I choose, to do on my two A2000s unless I send it out - any referrals would be appreciated as I live in USA, Michigan 49050
Thank you for watching. They really are a great machine. Unfortunately I don't have any Amiga repair contacts in the USA. I think one of the Amiga Facebook groups might be a great place to ask.
Its work
As I am in the process of repairing the 4 2000 motherboards I have, I love the UV light cure shot in the dark. Very fun indeed.
I was cleaning mine, and held it up to the light, and the view was amazing.
I just uploaded a little video of it, because of how cool it looked.
Good luck and thank you for the pretty view through this board. (For others reading this you can see the video here - ruclips.net/video/cZ1YqSOd-S4/видео.html )
@@TheDigitalOrphanage thanks for posting my video link!
I try not to clutter video comments with links to my stuff. I appreciate it!
You're welcome.
This single video earned you a subscribe. I didn't want it to end. :-)
That's very kind of you. That was the distillation of about 4 to 5 hours of raw video footage. I'm not sure you'd really wanted to have watched it all though!
@@TheDigitalOrphanage Hey, with some good Amiga mods playing in the background I could watch just about anything. lol
Nice video. Great attention to detail on the refurb.
Thank you, I try my best! Practice makes perfect though, and each time I try to improve my techniques or equipment.
@@TheDigitalOrphanage absolutely, that's what it's all about. I do the same with my stuff, try to learn something new with each project. That's one of the things I love about this hobby.
Can you please tell me what the board is in one of the case slots? It appears to have DIN sockets on it! Is it for MIDI?
Yes, it's a MIDI adapter, check out part 4 for a close up and test.
@@TheDigitalOrphanage Thanks :)
You're welcome, thanks for watching.
You're welcome, thanks for watching.
Great video,I used my dishwasher to clean up a Vectrex board I was repairing and it worked fine,but I stressed all the time it was in there though. Looking forward to the next installment.
Thank you! I was chatting to Retromancave about using a dishwasher the other day, you're braver than either of us are! I'm going to try and find a good second-hand bargain of an ultrasonic cleaner and see if Neil wants to go halves with me. Then we can fight over who has custody! :-)
Very satisfying video. Thank you!
Glad you enjoyed it!