Amiga hardware info, help and support with a focus (but not limited to) North American NTSC experiences. Open to all.
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obitus1990
USA

by obitus1990 posted Sat Apr 13, 2019 10:58 pm

John Hertell is currently assembling his 3000 board to test it for function. Just finished all the passives, I think , yesterday. He's posting his progress on the Amiga facebook group. I for one want one...my A3000 works perfectly, but, it did have battery leakage that was cleaned up. It will be a pain to transfer all that stuff over if I ever need to, but, at least I have the option!
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RogerWilco486
Boyertown, PA USA

by RogerWilco486 posted Sun Apr 14, 2019 6:21 am

Mr.Toast wrote:Mind if I ping you on some items from the BOM in the future (when I loop back to this project)?


Sure, I've been planning to share my BOM anyway so this gave me a reason to stop dragging my feet. The custom chips and DB-23 sockets came from Individual Computers, just about everything else from DigiKey. I also reused some harder to find parts from my original motherboard--the delay-line IC, 22-degree angled SIMM sockets, self resetting fuse, RTC chip, RTC crystal, RTC trimmer, and the audio jacks.

I had to purchase some NOS 74F841s on eBay because they don't appear to be available new anymore. Those are used for U216.

Below is a link to my Digi-Key BOM in Excel format. In many cases it's cheaper to buy larger quantities of the passive components. That's why you'll see some line items with a much higher quantity than required--because it costs less than buying only the needed amount. I also padded many of these inexpensive passives with spares since it's only a couple cents more and easy to loose these small SMD parts.

Bill of Materials Excel Doc

I should note R179 needs to be subbed with a diode when using a coin cell instead of NiCad--which hopefully everyone does. That's the diode at line item 85 in my BOM.

I hope this helps!

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