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-   -   Toshiba Satellite L300 Power Problem (http://www.badcaps.net/forum/showthread.php?t=13455)

incradibles 02-19-2011 08:47 AM

Toshiba Satellite L300 Power Problem
 
I got toshiba Satellite L300, its working on battery but when i connect charger it turns off. but when i connect it to laptop without doing it on it charges battery. but without battery it doesn't work with charger.:confused:

mattbrad2 02-19-2011 11:24 PM

Re: Toshiba Satellite L300 Power Problem
 
Probably a Maxim or TI battery management IC acting up. If it charges, the charging circuit is fine and running off battery means the rest of the laptop is not shorted. The battery management IC controls the logic of switching between battery and AC. Look around the battery connector and see if you can find a small (~ .5") square IC labeled Maxim or TI.

incradibles 02-20-2011 11:11 PM

Re: Toshiba Satellite L300 Power Problem
 
3 Attachment(s)
Thanks for replying i will check that ic later now i got another laptop toshiba satellite A200 these 20M resistor showing Zero Ohm Resistance. laptop is dead not showing power indication, charging light nothing at all. :confused:

mattbrad2 02-22-2011 05:33 PM

Re: Toshiba Satellite L300 Power Problem
 
Did you remove those to see if they were in fact bad? They look like they've been removed. I've never seen those bad - usually its one of the neighboring mosfets or a shorted cap. If one (or more) of those are bad, they will usually give false reading on other components. The only way to tell for sure is to lift one side of the component and test it that way.

Ch1p4@ll 03-09-2011 11:43 PM

Re: Toshiba Satellite L300 Power Problem
 
u can try to resoldering the Maxim IC (48pins) near the vga out line... it work for me before.

mihaicozac 03-14-2011 09:20 AM

Re: Toshiba Satellite L300 Power Problem
 
20M on the resistors is in fact 20milliohm... that is likely short
for the A300:try to make short on the backup battery, for about 2-3 seconds, without power or battery on it, then attach the power plug, it should start.

azry 05-30-2011 12:44 AM

Re: Toshiba Satellite L300 Power Problem
 
Quote:

Originally Posted by mattbrad2 (Post 152021)
Probably a Maxim or TI battery management IC acting up. If it charges, the charging circuit is fine and running off battery means the rest of the laptop is not shorted. The battery management IC controls the logic of switching between battery and AC. Look around the battery connector and see if you can find a small (~ .5") square IC labeled Maxim or TI.

Now i hv 1 laptop same problem model L300 (pslbcl). Already check for all PQ dan PC. Please help!!
No Maxim or TI IC on my board. Can u please give the location of the IC. Thanks...

ablacon64 05-30-2011 07:42 AM

Re: Toshiba Satellite L300 Power Problem
 
When resistor go bad, they raise the resistance, not the opposite.

Take a look at this thread:
http://www.badcaps.net/forum/showthread.php?t=8991
Posts 12 ~ 18.

edpax 05-31-2011 06:53 PM

Re: Toshiba Satellite L300 Power Problem
 
where can I buy this smd's here in the philippines? i've been to DEECO but to no avail.pls help.

zahirulislam 09-28-2011 07:16 AM

Re: Toshiba Satellite L300 Power Problem
 
Quote:

Originally Posted by incradibles (Post 151921)
I got toshiba Satellite L300, its working on battery but when i connect charger it turns off. but when i connect it to laptop without doing it on it charges battery. but without battery it doesn't work with charger.:confused:


same problem to me

fddizon 09-30-2011 03:34 AM

Re: Toshiba Satellite L300 Power Problem
 
just a remedy,

boot your laptop using battery, go to device manager. disable the second processor.

laptop will work on charger on

fix from other forum i read
replace NEC/TOKIN chip
or Core chip regulator

hope this helps

Francis

russell1981 02-01-2012 01:37 AM

Re: Toshiba Satellite L300 Power Problem
 
i have also toshiba satellite L300 power problem!but i fixed this using 4*330uf capacitor.
unfortunately 20minutes later with charger connected condition i am watching a movie then display gone.like ghost image,then its restart.and no display...!i give to heat gpu but no display.but the laptop running well,both charging light and start light is well,what is the next procedure??please help me sir.

russell1981 02-04-2012 10:45 AM

Re: Toshiba Satellite L300 Power Problem
 
i have also toshiba satellite L300 power problem!but i fixed this using 4*330uf capacitor.
unfortunately 20minutes later with charger connected condition i am watching a movie then display gone.like ghost image,then its restart.and no display...!i give to heat gpu but no display.but the laptop running well,both charging light and start light is well,what is the next procedure??please help me sir.

russell1981 02-06-2012 12:27 AM

Re: Toshiba Satellite L300 Power Problem
 
i have also toshiba satellite L300 power problem!but i fixed this using 4*330uf capacitor.
unfortunately 20minutes later with charger connected condition i am watching a movie then display gone.like ghost image,then its restart.and no display...!i give to heat gpu but no display.but the laptop running well,both charging light and start light is well,what is the next procedure??please help me sir.

russell1981 02-08-2012 12:16 PM

Re: Toshiba Satellite L300 Power Problem
 
i have also toshiba satellite L300 power problem!but i fixed this using 4*330uf capacitor.
unfortunately 20minutes later with charger connected condition i am watching a movie then display gone.like ghost image,then its restart.and no display...!i give to heat gpu but no display.but the laptop running well,both charging light and start light is well,what is the next procedure??please help me sir.

Madhusha 04-09-2012 09:20 PM

Re: Toshiba Satellite L300 Power Problem
 
In my case, after replacing NEC/TOKIN chip with "330uf X4 & 220uf X2" its working fine now... thank you every one
:-)

Donnie5000 04-16-2012 12:58 PM

Re: Toshiba Satellite L300 Power Problem
 
Quote:

Originally Posted by Madhusha (Post 230513)
In my case, after replacing NEC/TOKIN chip with "330uf X4 & 220uf X2" its working fine now... thank you every one
:-)

Would like some more info on this, if possible.

abdulnisam 04-28-2012 01:37 AM

Re: Toshiba Satellite L300 Power Problem
 
Quote:

Originally Posted by Madhusha (Post 230513)
In my case, after replacing NEC/TOKIN chip with "330uf X4 & 220uf X2" its working fine now... thank you every one
:-)

can i use 4 tatalumic capacitor marked 330?
is that 330uF?

xaviero1412 04-29-2012 07:05 AM

Re: Toshiba Satellite L300 Power Problem
 
yes u can use 4x330 tantalum

sohel 05-04-2012 03:35 AM

Re: Toshiba Satellite L300 Power Problem
 
Quote:
Originally Posted by incradibles
I got toshiba Satellite L300, its working on battery but when i connect charger it turns off. but when i connect it to laptop without doing it on it charges battery. but without battery it doesn't work with charger.

same problem to me & but RAM remove then when i connect charger colling Fan runing.


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