Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > General Discussions > Off-Topic Discussion

LinkBack Thread Tools Display Modes
Old 07-16-2011, 10:34 PM
Mr.Kenny's Avatar
"Just Passin' Thru"
Join Date: Sep 2005
Location: Springfield,MO
Posts: 277
Laptop power supply is 34.5 volts; supposed to be 19.5...Is this the problem?

My daughter's Toshiba laptop is having problems turning on.
We checked the voltage of the power supply and it is 34 plus volts; supposed to be 19.5 volts......
We don't know how long it has been this way.... and we don't know if the power 'fluctuations' are regulated by the battery or internally.
The battery is supposed to be 10.5 volts; we can't tell what the voltage is now because the multiple connector pins are covered on the battery.
The 'turning on' problem happens with or without the power supply plugged in.

Did the excess power supply damage the battery? or the computer or both?


"Our Lady of Blessed Acceleration...
don't Fail Us Now"
Reply With Quote
Old 07-17-2011, 11:04 AM
Registered User
Join Date: Feb 2007
Posts: 174
Go to Best Buy or

any major computer retailer that deals toshiba and ask to plug in and boot. That should tell you WTF.

I have spare toshiba PS if you need it. PM me.
Reply With Quote
Old 07-17-2011, 11:34 AM
Yak Yak is offline
Registered User
Join Date: Aug 2009
Location: San Antonio, TX
Posts: 1,711
The power supply may be damaged internally, or you may be measuring across the wrong parts of the DC tip. There may be two or three contacts on the PS tip: the outer metal collar, the inner metal collar and (if it has one) a central pin.

If you've got it measured correctly, then it may be an internal failure of the auto-sensing circuitry - the power supply is probably "universal" and detects the AC input voltage (110 ~ 240) and adjusts the output to 19 V DC.

A 34 V input may/may not be enough to cook the laptop and/or the battery.

Like Stoney recommended, I'd take the laptop to BestBuy or a retailer and ask to plug in to a Toshiba adapter. Remove the battery and plug it in; if it boots, you're okay - but may need a new battery, if not...
Reply With Quote
Old 07-17-2011, 06:34 PM
Registered User
Join Date: May 2011
Location: NYC
Posts: 5,213
The power supply may also not be able to regulate voltage under zero load. See what the voltage is loaded for an amp or two of current.

Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 01:14 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page