Toshiba T1000 reluctant to boot - UK Vintage Radio Repair and Restoration Discussion Forum

Mike Brett · 13th May 2013, 5:37 pm

Hi all
My son purchased an old Toshiba T1000 ,model no. PA7027 lap top about a year ago and gave it to me to fix. The internal battery pack would not hold a charge so I made up a new rechargable pack and it worked fine till last week. Now on switch on the small power-low battery indicator goes red then turns to green then goes out and refuses to boot up. I have checked the batteries and they are still holding a good charge, just under 6 volts. I tried a p.s.u. connected to the battery plug but the results where the same. I wondered if it was shutting down because of an internal protection circuit.Anyone had experience of this model or could think of something to try.
Mike

paul.brett · 15th May 2013, 11:15 am

I have requested technical schematics from Toshiba Europe. We'll see how that pans out.

Zelandeth · 16th Jun 2013, 12:41 am

Mike,

Not sure how similar the T1000 is to it, but a T1200 which I had a few years ago seemed to be suffering from a number of physically leaky electrolytic capacitors in the power supply and battery charging boards.

Was never 100% sure if this was the problem, but it certainly seemed a likely candidate given the fact there were visible problems there.

13th May 2013, 5:37 pm	#1
Mike Brett Retired Dormant Member Join Date: Dec 2005 Location: Wisbech, Cambridgeshire, UK. Posts: 452	Toshiba T1000 reluctant to boot Hi all My son purchased an old Toshiba T1000 ,model no. PA7027 lap top about a year ago and gave it to me to fix. The internal battery pack would not hold a charge so I made up a new rechargable pack and it worked fine till last week. Now on switch on the small power-low battery indicator goes red then turns to green then goes out and refuses to boot up. I have checked the batteries and they are still holding a good charge, just under 6 volts. I tried a p.s.u. connected to the battery plug but the results where the same. I wondered if it was shutting down because of an internal protection circuit.Anyone had experience of this model or could think of something to try. Mike

15th May 2013, 11:15 am	#2
paul.brett Tetrode Join Date: Dec 2005 Location: Wisbech, Cambridgeshire, UK. Posts: 97	Re: Toshiba T1000 reluctant to boot I have requested technical schematics from Toshiba Europe. We'll see how that pans out. __________________ My vintage Computer Museum. Please visit soon!

16th Jun 2013, 12:41 am	#3
Zelandeth Heptode Join Date: Jun 2006 Location: Milton Keynes, Buckinghamshire, UK. Posts: 931	Re: Toshiba T1000 reluctant to boot Mike, Not sure how similar the T1000 is to it, but a T1200 which I had a few years ago seemed to be suffering from a number of physically leaky electrolytic capacitors in the power supply and battery charging boards. Was never 100% sure if this was the problem, but it certainly seemed a likely candidate given the fact there were visible problems there. __________________ Zel's Lair - A random bag of vintage tech, lighting information and other assorted geekery