Embed Notice

HTML Code

<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://mstdn.io/users/codewiz/statuses/113877916493724437">Bernie (codewiz@mstdn.io)'s status on Thursday, 23-Jan-2025 22:31:49 JST</a><a href="https://mstdn.io/@codewiz" title="codewiz@mstdn.io"><img src="https://gnusocial.jp/avatar/11383-48-20240209145447.webp" width="48" height="48" alt="Bernie" style="position: absolute; left: 0; top: 0;">Bernie</a><div><a href="https://mstdn.io/@codewiz/113877844721449320" rel="in-reply-to">in reply to</a></div></section><article><p>Last night I carefully opened the <a href="https://mstdn.io/tags/Commodore" rel="tag">#Commodore</a> wedge PSU with flat screwdrivers, but the interior is filled with a potting resin which is stuck to the box.</p><p>I measured +5V after the regulator, but it drops as soon as I connect the <a href="https://mstdn.io/tags/Plus4" rel="tag">#Plus4</a> board.</p><p>If the board was shorted, the fuse would have blown. So I guess the regulator is unable to source more than a few milliamps.</p><p>I couldn't make further progress without tools. I'm literally working from my mother's kitchen! 🤓</p><p><a href="https://mstdn.io/tags/electronics" rel="tag">#electronics</a> <a href="https://mstdn.io/tags/vintagecomputing" rel="tag">#vintagecomputing</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4431937#notice-8671515">In conversation</a><time datetime="2025-01-23T22:31:49+09:00" title="Thursday, 23-Jan-2025 22:31:49 JST">about 14 days ago</time> <span>from <span><a href="https://mstdn.io/@codewiz/113877916493724437" rel="external" title="Sent from mstdn.io via ActivityPub">mstdn.io</a></span></span><a href="https://mstdn.io/@codewiz/113877916493724437">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/3994036">Untitled attachment</a></label><br><a href="https://media.mstdn.io/mstdn-media/media_attachments/files/113/877/866/668/300/127/original/c654261134ff39e7.jpg" rel="external">https://media.mstdn.io/mstdn-media/media_attachments/files/113/877/866/668/300/127/original/c654261134ff39e7.jpg</a></li></ol></footer></blockquote>

Corresponding Notice

Embed this notice
Bernie (codewiz@mstdn.io)'s status on Thursday, 23-Jan-2025 22:31:49 JST Bernie
in reply to
Last night I carefully opened the #Commodore wedge PSU with flat screwdrivers, but the interior is filled with a potting resin which is stuck to the box.
I measured +5V after the regulator, but it drops as soon as I connect the #Plus4 board.
If the board was shorted, the fuse would have blown. So I guess the regulator is unable to source more than a few milliamps.
I couldn't make further progress without tools. I'm literally working from my mother's kitchen! 🤓
#electronics #vintagecomputing
In conversationabout 14 days ago from mstdn.iopermalink
Attachments
1. Untitled attachment
  https://media.mstdn.io/mstdn-media/media_attachments/files/113/877/866/668/300/127/original/c654261134ff39e7.jpg

Public

Embed Notice

HTML Code

Corresponding Notice