Question about Toshiba SATELLITE A10 A15 A20 A25 A35 A40 A45 SATELLITE PRO M15 SERIES 15 INCH XGA LCD DISPLAY -LQ15 (LQ150X1LHC3B) CD-ROM Drive

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Toshiba satellite pro a40 power problem

I have a power problem with the above laptop. For the vast majority of the time it shows no lit LEDs on the front but very ocassionally they will light for about 30 secs. It is the same with the battery in or out.
This is the type of end connector to the charger:
http://www.easy2pc-chargers.co.uk/toshiba-satellite-pro-a40-131-ac-adapter.html?source=googleps

If looking end on we call the pins left to right 1 to 4 then these are the readings i get.

1-2 6.1V
1-3 6.1V
4-2 6.1V
4-3 6.1V

The problem is further complicated by the fact i've ordered a replacement charger and when i first plugged it in the LEDs lit for about 5 secs and after that nothing. The new charger has an LED on the block whixch is not lit and i measure no Voltage whatsoever on the equivilent pins on the new charger.

I've stripped the laptop down and with the original charger i measure the same voltages on the quivilant pins on the motherboard.

I'm confused about the voltages but the original charger worked for at least a month no problem. However it is rated at 15v.

Any help appreciated.

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  • Toshiba Master
  • 16,174 Answers

There is no power on the cable that comes from the mains to the power block. Check the cable for continuity.

Posted on Mar 03, 2017

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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Posted on Jan 02, 2017

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Bogdan
  • 198 Answers

SOURCE: Toshiba Satellite 1135-S125 front LED indicators gone weird

Hi The strange operation of those LED's is most probably an error mode indicator. If a laptop fails to power on corectly it will use those LED's, lighting in a specific pattern to signal the error. That's an example. In your case something was damaged in some way because the error code indicator is still acting like there is an error. You may try to reset the BIOS to factory defaults (small chances that this will work) and leave the laptop unpowered for about 1 day. If the problem is still there you will need to have it fixed in a service center. By comparing the LED lighting pattern with information from the Toshiba service catalogs they will be able to tell you what kind of error had happen for wich the LED's to light in this manner. Sorry for my bad english, I live in a non-english speaking country. Good luck and don't forget to rate any answer received from this site.

Posted on Mar 05, 2007

flipbooks
  • 177 Answers

SOURCE: Toshiba Satellite Laptop Power Failure (A105-S1013 System Unit)

Okay, lets troubleshoot this:
1)Does your laptop run on battery alone ?
yes )test your jacks continuity to the motherboard using a continuity tester or Digital Multimeter.
a)test between the center contact and the motherboard.
b)test between the outside metal cover of the jack ,and the motherboard.
c)If either of these fails continuity,replace the jack.
2)does your laptop now power up on AC ?
yes)Stop
No)Try the BIOS upgrade.

Posted on Feb 10, 2008

mewms_14904
  • 1027 Answers

SOURCE: ac led blue battery led amber will not power on

Check with toshiba, they have an update on this link
On my Toshiba M105-S3051 the reset switch is a pin hole above and to the left of my microphone jack on the front.

Posted on Mar 27, 2008

SOURCE: Toshiba Satellite L25-S119 Does not Power on

The Toshiba laptops are famous for the power jack wriggling loose from the motherboard. Once it gets so loose the adapter power stops and it uses battery power until that runs out. You can usually move the power cord around until it starts working again but this is just a temporary fix and the jack will eventually need to be replaced. Most computer shops charge between 100-250 bucks for this service.

Posted on Jul 17, 2008

RescueTechLA
  • 2653 Answers

SOURCE: Toshiba Satellite A135-S4527 Charger problem

Get another laptop.

The A135 is a lemon.

Problem is either with the dc jack on the board or more than likely the motherboard is damaged.

I've repaired a number of A135's and 95% of the time motherboard had to be replaced.

Sorry for the bad news, but I hope this helps.

Posted on Mar 02, 2009

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