PowerBook Pismo 400 Trouble

[tubhost]

I have a PowerBook Pismo 400 which doesn't seem to get even the slightest bit of power to it via the power adapter. Please help me if you can.

To make a long story short, I'll give you an abridged history of what I did to cause my issues: There was a loose connection for the headphone jack in the back which I was using into amplified speakers for better sound. I tried opening the machine up and fixing the connection, but had trouble getting far enough into it to reach that loose piece. During the fiddling I believe I popped the CPU board out of the socket where the memory was on both sides. I'm assuming that killed the power to the memory losing the ROM BIOS, because after I got it all put back together again all I could get out of it was a hard drive spin and a long system speaker beep.

To complicate things a bit, I left it sitting for several months and didn't attend to the issue. Now when I hook up the AC adapter and hit the power button I get no response whatsoever. The green light doesn't show any activity at all. If anyone out there can shed light on any and/or all of these issues, please respond. I sincerely appreciate all of your help.

Brian Coffee
TUBhost:

http://www.tubhost.com

 

[joemck2004]

Have you checked that the adator is supplying the correct voltage, and that the power jack on the computer is OK? (You'd had trouble with loose jacks before.) Other than that, all I can think of is opening it up and re-seating anything you think might have come unseated. Notably power cables and anything related to the hard disk, display and keyboard. (Maybe the beep was to tell you that some component wasn't powering up?)

 

[tubhost]

A week or two ago I took the machine into the Apple store and they couldn't get it to work on their AC Adapter or battery. They then sent it away. It came back a few days later in what appeared to be the same condition. The sheet said they had replaced the CPU board.

I took the Pismo back to the Apple Store and he hooked up his AC Adapter and it worked. I looked at my adapter and there was visibly a break in the wiring inside.

So, the answer appears to have been a bad CPU board. I guess it mostly struck me as strange that it used to beep and then stopped doing anything at all.

Also, I was able to mend the power adapter by cutting it open and splicing the cables together. The battery also appears to be charging fine. End of story.

Brian Coffee
TUBhost:

http://www.tubhost.com