Toshiba Sat. Pro 420CDT Help needed

From: John Lawson <jpl15_at_panix.com>
Date: Fri Feb 9 11:28:17 2001

  'Allo List - My trusty Toshiba laptop has fallen victim to the ravages
of Indian Mains Chaos. It was plugged in charging over night at a hotel;
the line voltage must have gone up near 300. The next day, I noticed it
running on batt though plugged in, and when I re-seated the mains plug the
laptop made one of those expensive little 'pop!' noises. We've removed the
internal SMPSU and tried to fix it, but it's tiny and full of SMDs and I
have no schematic. Some of the SMD resistors were actually blown off the
board.. If I understand the unit, it puts out 12VDC. Ihave connected an
external 12V supply to the leads, but no joy yet.

  Until it ran down, the machine worked fine on the battery., including
after removal of the SMPSU and re-assembly of the case..

  Now, with 12V on the SMPSU wires, the 'mains plug' icon LED flashes "one
long - two short - one long - off one long period"

  The unit will not power up in this mode.

  If anyone has any direct Toshiba info: I would like -

 What this code means.

 What the actual internal PS voltage output/current is.

 What the battery connections/voltages are (for ext charging}

 If/Where a service manual is available for the laptop

 If anyone has a 420CDT junker they'd like to sell. All I want is the main
board and power supply. Also the battery would be nice for a spare.

  I have located a source for the SMPSU and mobo and batteries, but with
shipping and %65 import duty... I'd rather not if I can avoid it.


  I would also like the orginal user/operation manual (w/setup disks?), if
anyone has one they'd like to jettison.

  Of course I'll pay for packing/shipping.

 This is kinda urgent.. we've been messing around with the PSU for a week
or two now... and I need my laptop back.. :(


  sigh. I know it's probably new laptop time, but this one does just what
I want it to do... and is all set up. Plus here in India, Laptops are
twice what they are elsewhere. I have to fly to Singapore or Hong Kong,
buy one, then try and convince the Kustoms Aggents that yes, I did have it
with me when I left the country. fuhgeddiboutit!

 Hopefully...


John
Received on Fri Feb 09 2001 - 11:28:17 GMT