Recent content by ironborn65

Hey, I’m insisting on this CRT. thanks @Byrd I added Dow Corning Dowsil 3140 / 3145 RTV silicone gel, and the flyback is no longer arcing, but the VSYNC is still missing—in the sense that there is only a well-defined horizontal line. When I first started, there was a short vertical image...

Updating the thread. I've replaced the C418 cap with one with the exact capacitance and a few more around the vertical sync, which showed a weak ESR and loss. Namely them all: C414, C526, C404, C523, C522, C512, C418, C519, C517, C921, C920, C519 Now it's fully working. Another device was...

I'm working on it: https://68kmla.org/bb/threads/recap-guide-12-rgb-monitor-m1296.36971/post-579523

I made this picture while recapping the same monitor. I hope it can be useful. The caps I found leakinf were the C521, C417, C418, C517 This is the table IDValue Notes C401 1uF 50V C404 25uF 220V C413 1uF 50V C414 100uf 50V C416 22uF...

I possibly caught an error in the list: cap C420 is not the electrolytic one, the correct ID is C404

I realised there are other options for "fixing" a CRT. There are solutions in AliExpress as well as open source projects (I was told about a guy showing his solution in an IT retro fair, but was not able to find it): *a new CRT driver board*. They all offer VGA input. e.g. link Adrian has a...

Shame on me — the brightness connector had come loose during disassembly. Now the image is back, but I still can’t set the brightness and contrast correctly: it’s either too dark, or, when I increase the brightness, diagonal stripes appear. From this, I can reasonably conclude that there is a...

mmm, not really, they were all brand new and from known factories ... this does not prove much, but, no, I did not test them. The ESP can be critical, but I thought I could improve the parts later if the image was not good enough, but this is ...bad!

I have a Macintosh 12" RGB M1296Z that was working properly until the image on the screen became slanted and compressed along the vertical axis. I disassembled the monitor and found three leaking capacitors in what I believe are in the VSync section. I was unable to find a replacement for the...

https://68kmla.org/bb/index.php?threads/how-to-mod-an-atx-psu-for-10-pin-macintosh-for-example-iisi-iici-quadra-700-and-others.30302/page-4#post-485562

soft start, apologies FYI

the IIsi has software start, CayMac offers a board to do the trick. https://ko-fi.com/s/d39b78d435

hi mate, the IIsi has software start, CayMac offers a board to do the trick. Others here can describe a “do it yourself” board,

Hi @wottle , yes, I created the system myself. I'm a software engineering guy, now doing hands-on only at home, 'cause at work I just "power point" :) .. or better :( Anyhow, the system is very simple; not much development is involved, if any. For those who might be interested: - a Synology NAS...

@cheesestraws ... OMG ... yes they are two firewires, not DisplayPort... my bad, apologies :( I have not yet made an offer yet, it's working, OS 9.2 installed What is the small daughter card with lots of capacitors?