HP DV9000 Laptop - No Video Problem

leehound · 07-22-2008, 04:46 PM

My out of warranty HP DV9000 laptop display goes black after a few minutes from bootup. I can hook up an external monitor and that works fine, just no video from the laptop LCD. I can get video from a cold boot but it quickly goes black after a few minutes. Since HP wont help, I want to fix this myself.

Could this be a symptom of a bad LCD inverter? This laptop has a Geforce Go7600 video card, could that be it?

Thanks

**TriggerFinger** · 07-22-2008, 05:47 PM

Very likely the inverter. Worst case is the backlight.

If you have not done so yet, please read this info that might help you.

http://h10025.www1.hp.com/ewfrf/wc/d...77&lc=en&cc=us

leehound · 07-22-2008, 06:04 PM

Quote:

Originally Posted by TriggerFinger

Very likely the inverter. Worst case is the backlight.

If you have not done so yet, please read this info that might help you.

http://h10025.www1.hp.com/ewfrf/wc/d...77&lc=en&cc=us

Unfortunately my laptop is not included in the Warranty Extension. I guess I will try the inverter first.

Thanks

**TriggerFinger** · 07-22-2008, 06:07 PM

Yep... try the inverter first (easier and cheaper)

.

leehound · 07-29-2008, 04:12 AM

I replaced the inverter, still video goes black. I guess I need to replace the backlight?

Any thoughts?

**TriggerFinger** · 07-29-2008, 07:09 AM

When you are in Windows (and screen is black), put a flashlight at an angle near the screen. Do you see your Desktop beyond the dark background?

07-22-2008, 04:46 PM	#1 (permalink)
leehound Registered User Join Date: Jul 2008 Posts: 3 OS: vista	HP DV9000 Laptop - No Video Problem My out of warranty HP DV9000 laptop display goes black after a few minutes from bootup. I can hook up an external monitor and that works fine, just no video from the laptop LCD. I can get video from a cold boot but it quickly goes black after a few minutes. Since HP wont help, I want to fix this myself. Could this be a symptom of a bad LCD inverter? This laptop has a Geforce Go7600 video card, could that be it? Thanks

07-22-2008, 05:47 PM	#2 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: LV, NV, USA Posts: 5,337 OS: DOS 6.0	Re: HP DV9000 Laptop - No Video Problem Very likely the inverter. Worst case is the backlight. If you have not done so yet, please read this info that might help you. http://h10025.www1.hp.com/ewfrf/wc/d...77&lc=en&cc=us __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Everest Mark the THREAD as SOLVED

07-22-2008, 06:07 PM	#4 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: LV, NV, USA Posts: 5,337 OS: DOS 6.0	Re: HP DV9000 Laptop - No Video Problem Yep... try the inverter first (easier and cheaper) . __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Everest Mark the THREAD as SOLVED

07-29-2008, 04:12 AM	#5 (permalink)
leehound Registered User Join Date: Jul 2008 Posts: 3 OS: vista	Re: HP DV9000 Laptop - No Video Problem I replaced the inverter, still video goes black. I guess I need to replace the backlight? Any thoughts?

07-29-2008, 07:09 AM	#6 (permalink)
TriggerFinger Moderator Hardware Team Join Date: Jan 2008 Location: LV, NV, USA Posts: 5,337 OS: DOS 6.0	Re: HP DV9000 Laptop - No Video Problem When you are in Windows (and screen is black), put a flashlight at an angle near the screen. Do you see your Desktop beyond the dark background? __________________ DBAN - Memtest86+ - BartPE - Linux LiveCD - ImgBurn - HDD Diags - Everest Mark the THREAD as SOLVED