Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.laptops > #2255

Re: Toshiba A200 series Proadalizer

Show all headers | View raw

Ron <beeb@woosh.co.nz> wrote:


> I have now ruled out the psu's as being the problem.
> I rigged 5 pair's of lithium batteries to get on load voltage
> of about 19.4 volts. I found this voltage was maintained
> throughout the test.
> System crashed around the arrival of desktop or before on
> several tests, pulled out the external 19v then everyhing is OK,
> including the desktop battery indicator, confirming that acpi
> was on (as expected) for these tests.
>
> Ron M.

OK, I suggested the power supply as a cause of the early failure of
the Proadlizer capacitor, not the ACPI problems that occour after it
has failed. A basic scope would at least show any low frequency spikes
occouring on the supply line which could be feeding into the Proadlizer
and causing it to fail early, which then leads to problems relating to
the noise that the Proadlizer is there to filter out.  There could be
high frequency spikes that you won't see, but it's no reason to ignore
the test.

Basically if I were you, I'd replace the Proadlizer capacitor again.
Then take a look at the output of the PSU on whatever scope I had
(even my old one that's only 10MHz) to see if it was the power supply
that killed the last one prematurely, and is going to start wearing
down the new one.

-- 
__          __
#_ < |\| |< _#

Back to comp.sys.laptops | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Toshiba A200 series Proadalizer Ron <beeb@woosh.co.nz> - 2014-10-08 11:34 +1300
  Re: Toshiba A200 series Proadalizer Computer Nerd Kev <not@telling.you.invalid> - 2014-10-10 06:10 +0000
    Re: Toshiba A200 series Proadalizer Ron <beeb@woosh.co.nz> - 2014-10-11 12:30 +1300
      Re: Toshiba A200 series Proadalizer Ron <beeb@woosh.co.nz> - 2014-10-13 13:39 +1300
        Re: Toshiba A200 series Proadalizer not@telling.you.invalid (Computer Nerd Kev) - 2014-10-15 22:27 +0000
          Re: Toshiba A200 series Proadalizer Ron <beeb@woosh.co.nz> - 2014-10-17 10:43 +1300

csiph-web