Pismo power jack replacement

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Joined: Jan 9 2008
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I just dropped by Pismo, and the power jack on the sound board shattered. (The "barrel" connector on the back of the Pismo that the cord from the power adapter plugs into.) I took the whole laptop apart, and it looks like this is the only problem. The solder joints snapped right off the board and the contacts also broke. So I'd like to try finding a new connector that I can solder onto the board. Can anyone give me any leads as to where I can order this, or part numbers? I assume Digikey or Mouser would have it, but they also carry a huge number of power connectors and I was hoping for some advice before I spent a couple of hours going through their catalogs. Just to be clear: I DON'T need a new sound board. I just need a way to plug my power cable into the sound board. Thanks!

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dankephoto's picture
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Joined: Dec 20 2003
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not available

Those connectors are not available from such usual sources as digikey or mouser, they're an Apple-only part. I've been able to source these from other PowerBooks, for example from a dead Duo logic board. You'll just have to look.

Heh, maybe you can find a dead Pismo or Lombard sound/power-in board and swipe the connector from that. Ask around the usual places like the lowendmac swap list, or here even.

dan k

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themike's picture
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It would also be entirely pos

It would also be entirely possible (and maybe even easier) to simply use a different connector altogether. You would have to attach it to your power adapter though, that may be more difficult.

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unknown1's picture
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Was there ever any attempt by Apple

Was there ever any attempt by Apple to make ALL the PowerBook power connectors the same?

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Jon's picture
Jon
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They have been fairly standar

They have been fairly standardized for a while. The smaller barrel version of this plug was used in the Dual USB iBooks and all G4 PowerBooks. The larger plug was used in the first iBooks and the G3 and earlier PowerBooks, on back to the Duos. They are generally following along the same time line.

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Joined: Jan 9 2008
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How to wire a different power jack in a Pismo

Since the connector is destroyed, I'm not positive how to wire up a replacement connector. At this point, I'm just going to remove the metal shroud on my power plug and solder a 3.5mm stereo phone jack to the Pismo's sound/dc-in board. But to do that, I need to know where to wire each of the conductors on the jack.

A normal Pismo power plug is just a 3.5mm stereo phone plug with a metal shroud around it. So there are four conductors. But as many people have pointed out before, the tip and shroud don't do anything. The ring is negative and the sleeve is positive. On a normal Pismo power jack, there are also four conductors leading to the board. What I need to know is which conductor in the jack goes to which conductor on the board.

Here's a picture of a functional Pismo sound/dc-in board:

The points I've labeled as 4 are the points where the shroud connects -- that's the easy one to determine. Can anyone verify my suspicion that 1 is the ring, 2 is the tip, and 3 is the sleeve? (Or, in other words, pad 3 is positive and pad 1 is negative?)

dankephoto's picture
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yep

According to my recollection, helped by reviewing my page on replacing a 5300's power connector, your #1 is the negative and #3 is the positive.

dan k

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Joined: Jan 9 2008
Posts: 4
Success!

Thanks to everyone for the advice, especially Dan K for the polarity info. The audio jack is now powering my Pismo. It's not a permanent solution, but it will get me by until I can get a replacement connector or board.