no power Compaq TA1 tablet laptop

[gord99]

1) She said it's a new battery
2) I checked the adapter and it's showing a steady 19.xx V
3) I got it down to the motherboard and the jack is good because I did continuity and plugged in the power and put the leads on the solder points and got the steady 19V-checked for loose connections.
4) I switched ram sticks, took out HD and video or sound card and optical drive, tried restart with and without the battery in.
5) No visible board damage
6) the HD is good
7) checked the on button and associated wiring.

Any other ideas?   

[jason2074]

I'm confused with your post. 

[truenorth]

Just to be clear--absolutely NOTHING happens on the laptop? What if anything was coincident to the 1st appearance of this problem on the computer? You have verified proper power to the motherboard and you do NOT observe any board damage --but it sure sounds like that is where it is. What about cooling fans and otherwise?What about the laptops power supply unit? truenorth

[lectrocrew]

1) She said it's a new battery
2) I checked the adapter and it's showing a steady 19.xx V
3) I got it down to the motherboard and the jack is good because I did continuity and plugged in the power and put the leads on the solder points and got the steady 19V-checked for loose connections.
4) I switched ram sticks, took out HD and video or sound card and optical drive, tried restart with and without the battery in.
5) No visible board damage
6) the HD is good
7) checked the on button and associated wiring.

Any other ideas? 

I don't have an answer but I have a laptop that died on me a couple of weeks ago with the same symptoms (this thread) so if I find a solution I'll post it here.