Jump to content
Sign in to follow this  
toples50

PowerBook 520 recapping or not?

Recommended Posts

I have a PowerBook 520c which works fine except floppy.Have to recap or not the computer?Also where can I find replacement for internal floppy drive.Does not read all the disks.

Share this post


Link to post
Share on other sites

Resurrecting this thread.  Has anybody taken apart a 520c?  I have one as well and finally recapped my AC adapter and started to play around with it.  Seems like a solid machine and I was really impressed with the screen in that it had no trouble keeping up with CrystalQuest (esp. as I think it's passive matrix).

 

If it's all ceramics and tantalums inside, I'd rather not pull it apart esp. as I understand the plastics are delicate.  That being said, I know all of my PB 1xx and my Duo 230 had really leaky (goo, not capacitance) electrolytics on the LCD board.

 

Share this post


Link to post
Share on other sites

I’ve taken apart 540c’s and 550c’s and never had an issue. Didn’t think the plastics were particularly delicate actually. They’re fairly easy to disassemble. 

Share this post


Link to post
Share on other sites

From the site below - it looks like maybe just one cap to worry about.  I think the caps on the battery bay board and the other purple ones on the inverter board are the OSCON solid polymer caps.  There is a green cap though that looks similar to what was on my 160 which was not polymer and was leaking electrolyte.  It actually doesn't look too bad to get into the screen.  

 

The rest of the caps all seem to be tants.

 

https://bilgisayarlarim.com/Apple/Powerbook_520c/index.html

Edited by superjer2000

Share this post


Link to post
Share on other sites
8 hours ago, Crutch said:

I’ve taken apart 540c’s and 550c’s and never had an issue. Didn’t think the plastics were particularly delicate actually. They’re fairly easy to disassemble. 

That's good feedback.  I thought people were talking about the hinge assembly breaking off from the screen which is where I got the idea that they were fragile.  In I go I guess.

Share this post


Link to post
Share on other sites
On 6/12/2020 at 7:01 AM, superjer2000 said:

I thought people were talking about the hinge assembly breaking off from the screen which is where I got the idea that they were fragile

This can and does happen (it's the same tiresome problem most other 1x0 series PowerBooks have, where the posts securing the screw bosses for the hinges crumble away).  It's happened to me a handful of times, so be extremely gentle with the screws holding the hinges on, and you *should* be OK.  If not, the same fixes for the other machines apply (epoxy, through-hole bolts, etc).

 

Also, the clips that hold that center hinge cover in place (the thing with the little slit for the microphone in the top center) like to break off, leaving the piece unable to stay in place, so be careful with those too.

 

Good luck!

 

c

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×