68kMLA Classic Interface

This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.

Click here to select a new forum.
Powerbook 100
Posted by: Papichulo on 2019-10-09 18:39:28
Hello

I just got a powerbook 100. It looks good and has a working screen 

The issue is the ac adapter port is loose and when i plug it in it makes a static noise with the sad mac sound.  I got it to start up to a flashing disk since theres no hd but then back to static noises. Is that because the ac plug is loose? I scrubbed the boards down to. Thanks

Posted by: Trash80toHP_Mini on 2019-10-10 08:23:14
Check the tip of the power jack plug. If there's a chip in the insulation DO NOT USE THAT A/C ADAPTER AGAIN!!!!

There was a longstanding silent recall deal when it was new. A chipped plug can trash the motherboard completely, happened to mine. The new MoBo/Power Power Adapter replacement repair was free. If you do need to get an new adapter, make sure it's the original part number or the low power version, the full power 100 series version will blow up a PB100 or Lugggable.

Posted by: bibilit on 2019-10-10 09:36:50
The PowerBook 100 is also known for having capacitors issues (Logic board side)

apart from  having a bad connector (maybe just bad or broken connector solder) i will replace caps first (never seen one with good ones)

Posted by: Papichulo on 2019-10-10 10:26:38
The powerbook makes a regular chime but only when i hold the plug down. The ac adapter works but the ac port is cracked on the solder part under the board. I saw the question mark screen once and it was clear but not since. 

Posted by: Trash80toHP_Mini on 2019-10-10 10:44:25
Definitely reflow the connector/logic board joints before powering it up again in that case. Also check for chipped tip on the A/C adapter. :approve:

Posted by: Papichulo on 2019-10-10 11:25:09
The ac adapter is not chipped and works and what is logic board joints? Capacitors? Thanks

1