Toshiba Satellite 1900. Laptop loses power and shuts down without warning.
This email I received from one guy last evening. He had a problem with DC jack on his Toshiba Satellite 1900 laptop and fixed the problem by resoldering the DC jack on the system board. The problem is very similar to Toshiba Satellite M30X, M35X, A70 and A75 power jack issue.
I finally got around to using the guide you provided to try to solve the problem on my Satellite 1900.
The power plug kept not making contact somehow and ultimately it would shut down.
You would see in the Toshiba Power Management Utility in the Battery Power Meter, the charge bar would show “Online Discharging”, which doesn’t logically make any sense anyway.
If you wiggled the plug at the back of the laptop it might make a connection but could fail at any time with no warning if you weren’t paying close attention to the red/green charge light on the front edge of the laptop and discharge the battery.
I took it apart and discovered that the barrel power socket on the back of the unit that is soldered in to the motherboard had over the course of time worked the centre post contact loose and pulled away from the solder.
There is no real anchor for the socket to the motherboard or anywhere else on the case plastic. The solder on the motherboard that holds the socket in place is very weak, there is not much there at all.
Over the course of normal use, and being a laptop people trip over the power cord from time to time adding to the stress of the almost non-existent solder.
All I did was to re-solder the damaged connection, and I beefed up all of the other three solder points on the motherboard as well to try to strengthen the contacts against failure in the future.
I have provided a picture that if you look very closely at the base of the pin as it goes through the circuit board there is a slight gap between the pin and the solder it used to be attached to.
I search all over the internet and the only resolution I could find for this problem was to have the motherboard replaced. It appears that is not the case. I repaired it 6 hours ago and it hasn’t failed since.
Entry Filed under: Toshiba Laptop Problems
92 Responses to “Toshiba Satellite 1900. Laptop loses power and shuts down without warning.”
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Pages: « 10 [9] 8 7 6 5 4 3 2 1 » Show All
May 19th, 2008 at 11:19 am
sara,
What do you mean it will not start? Do you have any lights when you plug it the AC adapter? Any noises coming from the laptop when you turn on the power button? Any light or image on the LCD screen?
By the way, here’s FRU documentation for a Satellite 1900 series laptop.
May 14th, 2008 at 1:58 am
please i need help with my toshiba satellite 1900, it just would not start. Don’t know what to do. If anyone has a service manual please loan me. thanks
February 27th, 2008 at 10:26 am
oning my toshiba pro sattelit 6100 will show green lit wen connected to Ac it will show green lit but on pressing the power button it will show amber color my battry is dead what should i do
February 7th, 2008 at 9:58 am
Srinu,
You can download the service manual for your laptop here.
Take a look at the page 9 (modem board removal) on the top right image.
The BIOS battery is in the lower left corner on the motherboard. It looks like a 5 cent coin.
February 7th, 2008 at 2:04 am
hello sir
how to find out the mother board bios battery in Toshiba satellite 1900 laptop plz tell me .
i remove all parts on the laptop but i did’t fid out the bios battery
how i can do it
plz tell me sir
December 13th, 2007 at 12:55 am
Please send me driver for this model: toshiba satellite 1900-203
ethernet and display
many thanks
December 11th, 2007 at 7:24 am
I’ve got this problem with my Toshiba Satellite Pro L10. I’ve purchased a new jack and I’m trying to open the laptop up but I’ve hit a stumbling block. Basically I’ve taken out all the retaining screws in the base of the laptop, but I can’t remove the base from the rest of the laptop (keyboard/screen) to get at the motherboard.
I can prise the laptop apart on each of the 4 corners, and it feels like it is coming apart. But it feels like the keyboard is fixed to the base somehow and therefore stopping me prising the casing off.
Do I need to remove the keyboard to dissasemble the laptop?
Any help would be greatly appreciated!! Thanks.
August 6th, 2007 at 1:46 am
A useless faulty designed laptop M35X-S149
The power problem erupted just in 14 months of purchase. It seems Toshiba is paying more attention on looks rather than performance
July 21st, 2007 at 1:45 pm
Ravi,
I haven’t created a disassembly guide for this model yet. You can find disassembly guides for other Toshiba laptops on www.irisvista.com. Disassembly steps will be the same for most Toshiba laptops. I hope it helps.
July 19th, 2007 at 11:41 am
does any one have a Toshiba Satellite 1900-303 guide.
I want to dismantle the laptop and solder the DC jack. I just cannot work on it now.
Any help appreciated.