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Very quiet sound on SE/30
Posted by: artlogic on 2019-03-02 22:08:53
I'm getting an SE/30 back in working order and I've noticed the sound is audible, but very low. I don't see any obvious capacitor leakage, but I'm wondering if that could be the problem? If not, any other suggestions? Thanks!

Posted by: maceffects on 2019-03-02 22:19:30
If then capacitors haven’t been changed yet, that’s the first place to start as well as cleaning the board. 

Posted by: Jinnai on 2019-03-03 08:44:30
On my SE/30, it's startup sound is quiet, otherwise everything is normal, it's mildly annoying.

Posted by: Dog Cow on 2019-03-03 14:02:18
I'm getting an SE/30 back in working order and I've noticed the sound is audible, but very low. I don't see any obvious capacitor leakage, but I'm wondering if that could be the problem? If not, any other suggestions? Thanks!
Leave the SE/30 on for several hours, say from morning until evening. Then check if the sound is louder. If so, then it's probably due to capacitor failure.

Posted by: artlogic on 2019-03-03 18:02:58
Leave the SE/30 on for several hours, say from morning until evening. Then check if the sound is louder. If so, then it's probably due to capacitor failure.
Great suggestion - thanks! I'll let you know what I find.

I noticed there doesn't seem to be anyone selling capacitor sets or offering recap services that I've found. I'm slightly concerned about doing the job myself as I'm just an average solderer. Do you have any suggestions?

Posted by: EvilCapitalist on 2019-03-04 05:10:49
There used to be someone on here who offered recapping that was highly rated before unrelated issues impacted the quality of their work.

Several folks, myself included, have used "allmacs" on eBay and I haven't heard any complaints about them yet.  The IIci board I had them recap only had a 3 week turn time which I felt was very reasonable.

https://www.ebay.com/itm/332173377243

Posted by: Builder1 on 2019-03-04 09:58:54
I JUST bought some SE/30 recap kits from Console5.

I wanted two tantalum kits but he only had one. I emailed him Saturday morning, he responded immediately and had them restocked the next day !

Fabulous service!

You can find the SE/30 kits here:

https://console5.com/store/cap-kits/computer-cap-kits/mac-68k-cap-kits/se-30.html

Tantalum and Electrolytic available.

J

Posted by: Joris W on 2023-04-28 09:07:42
Thanks @Builder1

As a novice but with a solder iron, which of those kits should I get to restore full sound? I have the same problem as OP - very faint but working sound.
Posted by: Phipli on 2023-04-28 09:28:25
From that list, either this :


or this :


the first, tantalum, is a more long term fix, but the second might be easier to solder because they usually fit the pads better, and the markings match.

I'd recommend not bothering to replace the bigger, through hole "axial" caps. They can be hard to remove and are less likely to have failed.

Make sure you clean the board as well, or the left over nasty stuff will still be doing damage.
Posted by: Joris W on 2023-04-28 09:39:12
Thanks!
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