Question about IBM ThinkPad T22 2647 Notebook
16v as requ. at tip of power supply some voltage to battery not sure which to test but when testing different configs at batt connections in comp some have misc voltg. power switch feels normal however on light not lighting and no flash or lights anywhere....Motherboard???
The problem might be with the dc adapter jack. This jack is only four point soldered on the motherboard and has been known to work it self free from electrical connection. This is due primarily to everyday use. You can get the dc jacks on-line everywhere, about $6 or $7. If your the mechanical type you can try and install is yourself or take it to a computer fix-it store. I wouldn't recommend GeeK Squad they just end up sending it out and charging you a fortune($85.00) for a 5 to 10 dollar job. I hope this helps you.
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Posted on Oct 09, 2008
Works with battery?
Could be power connector on the motherboard
Posted on Oct 09, 2008
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Posted on Jan 02, 2017
SOURCE: ibm thinkpad r40 won't power up.
Batteries can develop a dead short and cause a no start. Try starting without the battery. Other things you can try is checking the power supply with an ohm meter,or plug it in and stick it in your mouth, but me personally, I'd use the ohm meter. Also check the memory, a faulty memory chip can cause this. If none of these work, them I'm afraid the problem may be with the power management chip on the motherboard. If the pm chip is malfunctioning, then motherboard replacement is your only option.
Posted on Jun 28, 2008
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Verify that the power supply voltage switch is set correctly. If the input voltage for the power supply does not match the correct setting for your country, your computer may not power on at all.
Check for disconnected computer power cable connections. A loose or unplugged power cable is one of the top reasons why a computer doesn't turn on.
Perform a "lamp test" to verify power is being provided from the wall. Your computer isn't going to turn on if it's not getting power so you need to make sure that the power source is working properly.
Test your power supply. At this point in your troubleshooting, it's very likely that thepower supply unit in your computer is no longer working and should be replaced. You should however test it just to be sure. There's no reason to replace a working piece of hardware when testing it is fairly easy.
Replace your power supply if it fails your testing.
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