SE/30 cutting out sometimes

[croissantking]

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?

 

[Phipli]

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.

 

[croissantking]

I’ve found and reflowed these two dry joints on the PSU.

 

[Phipli]

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?

 

[croissantking]

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.

 

[Phipli]

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!

 

[croissantking]

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.

 

[Phipli]

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.

 

[Byrd]

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

 

[joshc]

Remind me again why we do this to ourselves.

 

[Phipli]

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

 

[croissantking]

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.

 

[joshc]

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.

 

[croissantking]

Probably that.

What sorts of caps did you use?

Solid polymer or ceramic might be best for those.

They were some generic electrolytics:

SMD / SMT Aluminium Electrolytic Capacitor 1uF/2.2uF/3.3uF to 1000uF 6.3V - 63V | eBay

Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.

www.ebay.co.uk

Why would you recommend polymer or ceramic?

 

[Phipli]

They were some generic electrolytics:

SMD / SMT Aluminium Electrolytic Capacitor 1uF/2.2uF/3.3uF to 1000uF 6.3V - 63V | eBay

Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.

www.ebay.co.uk

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.

 

[joshc]

They also tend to be smaller and fit within displays better

 

[s_pupp]

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.

 

[joshc]

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.

 

[Phipli]

“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".

 

[Phipli]

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.