NEED A PEPLACEMENT AC ADAPTER for P100-ST9752 LAPTOP

the battery charger circuit is short circuit, therefore need to repair or test the battery is ok

The card is part of the main board, but you can likely add one to the expansion slot if it has one.

Try this if will help.

Remove battery and unplug the ac adapter from laptop.

Without the power sources hold down the power button for 10 seconds.

Check the ac adapter from wall power socket if ac adapter LED is ON.

Plug back in the ac adapter to laptop then check the LED from the ac adapter if it stayed on.

If ac adapter LED turned off right after you plug in the ac adapter to laptop then you need to replace the ac adapter, motherboard and power daughter board.

Hold down the D key then Press Power Button once. Check if color display will appear in the screen.

if the ac adapter stays on you and still no power indicator from the laptop you need to replace motherboard and power daughter board.

Hope this helps.

Laptop chargers also be called as power adapter, AC adapter or DC adapterCheap Laptop Charger online for UK For US: laptop AC adapter & laptop DC adapter You can use universal laptop AC adapter too.

remove all external peripherals. remove laptop battery. remove ac adapter.
plug ac adapter to wall power socket without the laptop connected check if the ac adapter led will stays on. if yes then connect it to the laptop and check if the ac adapter led turns off. if yes motherboard laptop has problems and need to be replaced.
if ac adapter led stays off without connecting laptop, try different wall power socket, if still ac adapter led is off then replace the ac adapter.
if ac adapter has light stays on then connected to laptop but laptop cannot even power up even the ac adapter led is on then laptop motherboard needs to be replace.

You may have a faulty adapter. Check the connector with a multi-meter, the voltage reading should be slightly higher than the voltage that is printed on the label on the back og the power adapter.
If the light on the power adapter does not light up when you plug it into the mains, then it is definitely faulty and you need a new one.

Try these:

1. Can you plug something else besides your laptop into the outlet...verify you have power?

2. Is there a light on your AC adapter...when you plug it in?

3. Try removing your battery and plugging it in, and verify that your AC adapter is working (somehow, if it has no indicator light)

4. Then unplug it, put the battery back in and see if it will start.

Let us know what happens after you try these.

Applicable Models: Satellite L15-S104, L15-S1041, L20-S310TD, L20-SP231, L25-S119, L25-S1194, L25-S1217, L25-S1213, L25-S1215, L25-S1216, L25-S1196, L25-S1211, L25-S1214, L25-S1212, L25-S121, L25-S1193, L25-S1192, L25-S1195, L35-SP1011, L35-S2366, L35-S2316, L35-S2206, L35-S2194, L35-S2174, L35-S2171, L35-S2161, L35-S2151, L35-S1054, P100-ST7111, P100-ST9212, P100-ST9712, P100-ST9742, P100-ST9772, P100-ST9762, P100-ST9752, P100-ST1072, P100-ST9732, P100-ST1071, P100-ST9412, P100-ST9612, P100-ST9012, P100-ST7211, P105-S921, P105-S931, P105-S9339, P105-S9337, P105-S6227, P105-S6217, P105-S6134, P105-S6124, P105-S6114, P105-S6104, P105-S6102, P105-S9722, P105-S6062, P105-S6022, P105-S6084, P105-S6064, P105-S6034, P105-S6024, P105-S6158, P105-S6148, P105-S6207, P105-S6197, P105-S6187, P105-S6177, P105-S6167, P105-S6157, P105-S6147, P105-S6074, P105-S6054, P105-S9312, P105-S6014, P105-S6002, P105-S6004, P105-S6012 << hideThe printed instructions included with the Recovery and Applications/Drivers Media disc are correct for most computer models. For some models, however -- including those listed above -- booting from the Recovery disc requires pressing the F12 key, rather than the 'C' key. The instructions below are correct for these models.
CAUTION: The Recovery process reformats the computer's hard disk drive, which completely erases its contents -- including all applications, all documents, and all other data stored on the drive. Be sure to back up your documents and other data before following the instructions below.
Follow these steps to erase the current contents of the hard disk drive and to re-install all of the software that was installed on the computer when it was manufactured:
1. With the computer on, insert the first Recovery disc into the optical drive.
2. Shut down the computer (click the Start button, click Shut Down, select Shut Down, click OK).
3. Press the computer's power button to turn the computer on, and then immediately press and hold the F12 key. Release the F12 key when the menu of boot options appears.
4. Use the arrow keys to navigate to the CD/DVD option. Press the Enter key to select it.
The computer will restart, and will boot from the Recovery disc.
5. Follow the instructions on the screen to start the Recovery process.
CAUTION: Once the Recovery process has begun, do not interrupt it.

The computer's hard drive will be formatted, erasing its contents. All of the software that was installed on the computer when it was manufactured will then be re-installed.
6. Once the Recovery process is complete, remove the Recovery disc, and press any key to restart the computer.
- mc/wa

Hi Ed;

This is issue has resolution as it has been published on Toshiba's Official Support Website. It seems you need to go to an Authorized Toshiba Center. They have a special tool to re-flash your BIOS and it will resolve the issue. I am adding the original text and link for the solution below

Good Luck

http://askiris.toshiba.com/ToshibaSupportSite/search.do?cmd=displayKC&docType=kc&externalId=1827224xml&sliceId=&dialogID=24612375&stateId=1%200%2024610494


New BIOS fixes incorrect power-on password prompt Document ID: 98082329 Posted Date: 08/21/07 Last Updated: 08/21/07 Category: ACPI, BIOS, Password Distribution: Public Applicable Models: Satellite P100-ST7111, P100-ST7211, P100-ST9212, P100-ST9612, P100-ST9412, P100-ST1071, P100-ST9732, P100-ST1072, P100-ST9762, P100-ST9772, P100-ST9752, P100-ST9742, P100-ST9712, P100-ST9012, P105-S921, P105-S9312, P105-S6074, P105-S6034, P105-S6124, P105-S6114, P105-S6104, P105-S6102, P105-S9722, P105-S6062, P105-S6022, P105-S6084, P105-S6064, P105-S9339, P105-S9337, P105-S6227, P105-S6217, P105-S6158, P105-S6148, P105-S6207, P105-S6197, P105-S6187, P105-S6177, P105-S6167, P105-S6157, P105-S6147, P105-S6134, P105-S6024, P105-S6054, P105-S6014, P105-S6004, P105-S6012, P105-S6002, P105-S931 << hide Use of any software made available for download from this system constitutes your acceptance of the Export Control Terms and the terms in the Toshiba end-user license agreement both of which you can view before downloading any such software.
Issue

The computer models listed above may display a "Password =" prompt when the computer is turned on, even though no power-on password has been set. If this happens, there is no password that will satisfy the password request. If the computer is turned off and back on again, it is very likely that the same password prompt will appear. The computer will be unusable until this problem is fixed.
If the problem has not happened yet, you can prevent it from happening in the future by upgrading the BIOS to the newest version.
The occurrence of this problem on any particular computer is unpredictable -- it may never happen, but it could happen any time that the computer is turned on. If this problem does occur, it will be necessary to send the computer to a Toshiba Authorized Service Provider, who will fix the problem at no charge to you.
Resolution

If this problem has not yet occurred on your computer, then click the following link to download and install BIOS version 4.00. This BIOS displays a power-on password prompt only when a power-on password has actually been set via the BIOS Setup program.
You may also browse for a newer version of the computer's BIOS at pcsupport.toshiba.com.
For more help, see Support Bulletin 98081213 Obtaining downloads and support docs from the Toshiba Support website.
If the problem has already occurred on your computer, then please make arrangements with a Toshiba Authorized Service Provider to have this problem fixed at no charge. To locate a Toshiba Authorized Service Provider (ASP), please visit Toshiba's Global ASP Locator at http://pcrepair.toshiba.com.