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SE/30 cutting out sometimes
Posted by: croissantking on 2024-01-24 10:02:16 I'm having the following issue, very occasionally, with my SE/30. My hunch is that the PSU needs recapping, or perhaps there is a dry joint. Any thoughts?
Posted by: Phipli on 2024-01-24 10:13:21 I'm having the following issue, very occasionally, with my SE/30. My hunch is that the PSU needs recapping, or perhaps there is a dry joint. Any thoughts? Looks like a loose connection rather than low voltage.
Posted by: croissantking on 2024-01-24 14:07:18 I’ve found and reflowed these two dry joints on the PSU.
Posted by: Phipli on 2024-01-24 14:29:33 Hope you used a load of flux and possibly fresh solder. Leads must have been dirty when previously soldered for that to happen. Is it a Sony PSU?
Posted by: croissantking on 2024-01-24 14:32:46 It’s a Sony, yeah. I desoldered the legs and pads completely with braid, and applied fresh solder - it looks good, I didn’t take a photo.
Posted by: Phipli on 2024-01-24 14:36:38 It’s a Sony, yeah. I desoldered the legs and pads completely with braid, and applied fresh solder - it looks good, I didn’t take a photo. Excellent work. 🙂 Bet that sorts your issue!
Posted by: croissantking on 2024-01-24 16:08:32 I hope so. I’ve started to realise that these old machines don’t just need restoring, they need ongoing maintenance for new issues which crop up every so often. One of the rubber feet just fell off the same SE/30.
Posted by: Phipli on 2024-01-24 16:09:24 I hope so. I’ve started to realise that these old machines don’t just need restoring, they need ongoing maintenance for new issues which crop up every so often. One of the rubber feet just fell off the same SE/30. Tell me about it. It's a full time job. I barely have time to play any Swoop.
Posted by: Byrd on 2024-01-25 00:42:28 I’ve started to realise that these old machines don’t just need restoring, they need ongoing maintenance for new issues which crop up every so often. Last SE/30 I touched for a fancy CPU upgrade I reckon something failed every time I put it back together. Take apart, fix that, nope, repeat x 6
Posted by: joshc on 2024-01-25 00:51:20 Remind me again why we do this to ourselves. 😅
Posted by: Phipli on 2024-01-25 01:27:34 Remind me again why we do this to ourselves. 😅 To quote people trying to persuade us they want to get into the hobby : Because "emulation just isn't the same". Yup, emulation is less stressful, cheaper, and less time consuming 😆
Posted by: croissantking on 2024-01-25 05:25:03 My PowerBooks are the worst though. How is it that my 165 now needs the screen recapping again? Maybe my fault for using cheap no-name caps off eBay.
Posted by: joshc on 2024-01-25 05:31:32 Maybe my fault for using cheap no-name caps off eBay. Probably that. What sorts of caps did you use? Solid polymer or ceramic might be best for those.
Posted by: croissantking on 2024-01-25 05:40:30 Probably that. What sorts of caps did you use? Solid polymer or ceramic might be best for those. They were some generic electrolytics: Pardon our interruption... Why would you recommend polymer or ceramic?
Posted by: Phipli on 2024-01-25 05:44:27 They were some generic electrolytics: Pardon our interruption... Why would you recommend polymer or ceramic? Because they are less prone to degrading with time, and the poly ones look similar to original parts and have similar characteristics.
Posted by: joshc on 2024-01-25 05:54:38 They also tend to be smaller and fit within displays better
Posted by: s_pupp on 2024-01-25 07:43:39 To quote people trying to persuade us they want to get into the hobby : Because "emulation just isn't the same". Yup, emulation is less stressful, cheaper, and less time consuming 😆 When, back in 2011, I found online a copy of Epyx Rogue than ran on vMac without needing my master floppy disk, I decided to sell my 1986 Mac Plus and my broken SE/30 with Micron Xceed. Emulation had reached the point at which I no longer needed a physical 68k Mac. I fixed the SE/30 with a recap in order to sell it, filled it with 128MB of RAM from 18004memory, reinstalled the logic board…and broke one of the RAM clips due to the height of the RAM. I bought a “broken” SE/30 for one of its RAM slots, only to find it worked fine. I bought another supposedly broken SE/30…fast forward to the present, and I’ve got a closet full of ‘em. Not only that, but I’ve expanded to other lines, including a couple dozen TiBooks. “Emulation isn’t the same” is true, but in my case is largely just an excuse to remain in denial that MCD (Macintosh Collection Disorder) is an ailment with substantially deleterious effects on my time and bank account.
Posted by: joshc on 2024-01-25 07:49:31 When, back in 2011, I found online a copy of Epyx Rogue than ran on vMac without needing my master floppy disk, I decided to sell my 1986 Mac Plus and my broken SE/30 with Micron Xceed. Emulation had reached the point at which I no longer needed a physical 68k Mac. I fixed the SE/30 with a recap in order to sell it, filled it with 128MB of RAM from 18004memory, reinstalled the logic board…and broke one of the RAM clips due to the height of the RAM. I bought a “broken” SE/30 for one of its RAM slots, only to find it worked fine. I bought another supposedly broken SE/30…fast forward to the present, and I’ve got a closet full of ‘em. Not only that, but I’ve expanded to other lines, including a couple dozen TiBooks. “Emulation isn’t the same” is true, but in my case is largely just an excuse to remain in denial that MCD (Macintosh Collection Disorder) is an ailment with substantially deleterious effects on my time and bank account. Gotta catch them all... I don't know what to say. Macs are just inherently collectible.
Posted by: Phipli on 2024-01-25 07:51:00 “Emulation isn’t the same” is true, but in my case is largely just an excuse to remain in denial that MCD (Macintosh Collection Disorder) is an ailment with substantially deleterious effects on my time and bank account. I suffer from "nobody would want mine anyway, I tend to buy cheap ones with something wrong with them. I doubt anyone would buy them".
Posted by: Phipli on 2024-01-25 07:55:14 I don't know what to say. Macs are just inherently collectible. I how have 6 out of 7 Wombat-family computers! Centris/Quadra 610 25MHz Centris 650 25MHz no FPU/no ethernet Centris 650 25MHz FPU/ethernet Quadra 650 33MHz Quadra 800 33MHz I wonder if they should perhaps have more than one case between them all... 😆 I also have a 475, they're almost a Wombat.
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