Thread
SE/30 12v supply issue
I did my first re-cap yesterday on my SE/30. I'm glad to say it went well. I wasn't getting any sound before, now I get clear and loud sound through the headphone jack. But unfortunately I'm not getting sound through the internal speaker. I plugged in another internal speaker (smaller), and I get faint sound through that. So I checked the voltages at the plug that connects to the logic board (with the plug removed), I'm getting -11.1v and +11.62v on pins 7 and 8 on the connector. The 5v supplies are fine. So I suspect that there's some issue on my analog board or power supply.
The SE/30 generally runs great, screen is good, SCSI port works fine, internal drives work fine. The only things I have issues with are the internal sound and the external drive connector. Whenever I connect a drive or Floppy Emu to the external connector it's very flaky. Not sure why the internal drives are not affected. Would a recap of the power supply be recommended to fix the 12v supplies?
The SE/30 generally runs great, screen is good, SCSI port works fine, internal drives work fine. The only things I have issues with are the internal sound and the external drive connector. Whenever I connect a drive or Floppy Emu to the external connector it's very flaky. Not sure why the internal drives are not affected. Would a recap of the power supply be recommended to fix the 12v supplies?
Caps in PSU can leak like this.
So you should check!(Maybe only caps in low voltage part are leaky.)
So you should check!(Maybe only caps in low voltage part are leaky.)
^ Ditto.
The SE and SE/30 supplies have a reputation of being very solid when it comes to power supplies. But I think their time has come. I am seeing more and more cases of SE power supplies becoming defective.
The SE and SE/30 supplies have a reputation of being very solid when it comes to power supplies. But I think their time has come. I am seeing more and more cases of SE power supplies becoming defective.
Well thats with anything at that age, these days.
I am working on a mac M1296 monitor, which pairs up with the LC series. Same deal, some of the caps are leaking causing picture distortion, and ultimately horizontal output transistor failure.
I am working on a mac M1296 monitor, which pairs up with the LC series. Same deal, some of the caps are leaking causing picture distortion, and ultimately horizontal output transistor failure.