HP Pavilion dv2000 Lights but Black Screen

Question

When I power up my Pavilion dv2000, I have blue lights but the screen remains black / blank. I can't hear the pc booting any further. I've tried all the Troubleshooting tips but no success. I removed/reinstalled the memory chips and hard drive, but no luck. The laptop won't boot from a Vista CD. Any suggestions / ideas would be appreciated. Walt

Answer 1

WITH LUCK, IT COULD BE AS SIMPLE AS RESEATING THE BATTERY. 1) I changed the battery in my daughter's dv2000 about three weeks ago. 2) At first the new battery seemed to work fine.  I then took it out and reinstalled the old battery, to check it with HP Battery Check - which I discovered on this occasion; I should have done this before replacing it, but I did not. 3) When I installed the new battery again, Battery Check started to give "Replace" for battery health status.I did not pay much attention to this.  The Battery Charge icon indicated the it was "Not Charging", when the cursor was placed over it.  4) Then, two or three weeks later, the screen remained blank when the notebook was started.  Hooked up a monitor to the notebook and it showed it to be working well. 5) Wasted a few hours researching the issue, and was about to start dissasembling the screen but I decided before to put the old (original) battery back in.  Did this and the screen came back to life at the next Start. 6) Installed the new battery again, removing and reseating it about four times in case there could be a dirty contact, and the screen kept working well.  After this, the status reported by Battery Check was "Good", at first, but then it went back again to "Replace" - will have to take this up with the battery vendor. 7) It's hard for me to figure out what would a faulty contact in the battery have to do with the screen not working, but it really looks like this was so. By the way, if you had to remove the screen frame, like to get to the LCD inverter, here is a good reference:http://www.youtube.com/watch?v=UT2GFVem_9U Or, to replace the screen:http://www.youtube.com/watch?v=lN3jNe8tphU Both procedures seem to be a lot more simple than one thinks. To get to Battery Check use:  Start > Help & Support > Troubleshooting Tools > Battery  Check On the side, to say something good about HP, they did replace the motherboard on this dv2000 in 2009, under a "Limited Warranty Service Enhancement" - that seemed to respond to failure of motherboards in several models, due to overheating.  It was repaired, and shipped back, on the same day it arrived at HP.  This, after the notebook was already well past its warranty period  (had bought it refurbished with a 90 day warranty).  It had failed after only 18 months from purchase date.  It worked fine since this repair, till the issue described here, and is 4 years old now.  We did buy a laptop cooler shortly after the repair, and use it almost all the time. Hope this may help someone.  Good luck.