missing capacitors in IISI PSU by Plessey

[ironborn65]

Hi everyone,

I'm trying to resurrect the Plessey PSU of my Mac IISI, it seems to be rare, Bruce has only the Sony one, and I do not find many information out there.

It's rather tight and more complex then the Sony one.

I need to admit that I lost two capacitors in my process, no one to blame but me .

You can find them at the bottom of the pic named C22 and C18

Can some one help me please?

I don't find references or schematics

I send a message to a guy here who mentioned repairing one two years ago.

PF

 

[David Goodson]

I have a Magnetek which I’ve been trying to open. It uses rivets instead of screws. 
 

Does yours have rivets and how did you open it?

If I can open mine, I could see if the board is similar and maybe which caps you’re missing.

 

[davidg5678]

how did you open it?

Unfortunately, I think the only thing to do is to drill out all of the rivets. That was the only way I was able to open my magnetek PSU.

 

[David Goodson]

Note this thread where they say it’s a Magnetek and the photo shows the board with Plessey on it.

 

[ironborn65]

Hi David, that's the one, Plessey is written on the board.

No rivets for me, they are used only for the grounds wires.

I found the capacitors!

The N4007 diode is conducting both ways as it happened to



 I'm trying with it now

PF 

 

[David Goodson]

I have mine open now finally if you still need capacitor info.